#i105323# added documentation to primitives

57 files changed, 1447 insertions, 547 deletions

diff --git a/drawinglayer/inc/drawinglayer/primitive2d/alphaprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/alphaprimitive2d.hxx
index 79518eb82358..10288b70bd1b 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/alphaprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/alphaprimitive2d.hxx
@@ -54,7 +54,12 @@ namespace drawinglayer
 
             The basic definition is to use the Alpha content as Alpha-Mask by
             interpreting the Alpha-content not as RGB, but as Luminance alpha mask
-            using the common RGB_to_luminance definition as e.g. used by VCL
+            using the common RGB_to_luminance definition as e.g. used by VCL.
+
+            The defining geometry is the Range of the child primitive sequence,
+            this means the renderers will/shall use this geometric information for
+            rendering, not the alpha one. The alpha one should/will be clipped
+            accordingly.
          */
         class AlphaPrimitive2D : public GroupPrimitive2D
         {
@@ -63,7 +68,17 @@ namespace drawinglayer
             Primitive2DSequence                     maAlpha;
 
         public:
-            /// constructor
+            /** constructor
+
+                @param rChildren
+                The content which is defined to have a transparency. The
+                range of this primitive is defined by this content
+
+                @param rAlpha
+                The definition of the Alpha-channel for this primitive. It
+                will be interpreted as mask by interpreting as gray values
+                using the common RGB_to_luminance definitions
+             */
             AlphaPrimitive2D(
                 const Primitive2DSequence& rChildren,
                 const Primitive2DSequence& rAlpha);
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/animatedprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/animatedprimitive2d.hxx
index c42853fe54b2..cd6133dc54d8 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/animatedprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/animatedprimitive2d.hxx
@@ -52,39 +52,59 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** AnimatedSwitchPrimitive2D class
+
+            This is the basic class for simple, animated primitives. The basic idea
+            is to have an animation definition (AnimationEntry) who's basic
+            functionality is to return a state value for any given animation time in
+            the range of [0.0 .. 1.0]. Depending on the state, the decomposition
+            calculates an index, which of the members of the child vector is to
+            be visualized.
+
+            An example: For blinking, the Child vector should exist of two entries;
+            for values of [0.0 .. 0.5] the first, else the last entry will be used.
+            This mechanism is not limited to two entries, though.
+         */
         class AnimatedSwitchPrimitive2D : public GroupPrimitive2D
         {
         private:
-            // the animation definition which allows translation of a point in time
-            // to an animation state [0.0 .. 1.0]. This member contains a cloned
-            // definition and is owned by this implementation
+            /**
+                The animation definition which allows translation of a point in time
+                to an animation state [0.0 .. 1.0]. This member contains a cloned
+                definition and is owned by this implementation.
+             */
             animation::AnimationEntry*                      mpAnimationEntry;
 
-            // bitfield
-            // flag if this is a text or graphic animation. Necessary since SdrViews need to differentiate
-            // between both types if they are on/off
+            /// bitfield
+            /** flag if this is a text or graphic animation. Necessary since SdrViews need to differentiate
+                between both types if they are on/off
+             */
             unsigned                                        mbIsTextAnimation : 1;
 
         public:
+            /// constructor
             AnimatedSwitchPrimitive2D(
                 const animation::AnimationEntry& rAnimationEntry,
                 const Primitive2DSequence& rChildren,
                 bool bIsTextAnimation);
+
+            /// destructor - needed due to mpAnimationEntry
             virtual ~AnimatedSwitchPrimitive2D();
 
-            // get data
+            /// data read access
             const animation::AnimationEntry& getAnimationEntry() const { return *mpAnimationEntry; }
             bool isTextAnimation() const { return mbIsTextAnimation; }
             bool isGraphicAnimation() const { return !isTextAnimation(); }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
 
-            // The getDecomposition is overloaded here since the decompose is dependent of the point in time,
-            // so the default implementation is nut useful here, it needs to be handled locally
+            /** The getDecomposition is overloaded here since the decompose is dependent of the point in time,
+                so the default implementation is nut useful here, it needs to be handled locally
+             */
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
         };
     } // end of namespace primitive2d
@@ -96,19 +116,26 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** AnimatedBlinkPrimitive2D class
+
+            Basically the same mechanism as in AnimatedSwitchPrimitive2D, but the
+            decomposition is specialized in delivering the children in the
+            range [0.0.. 0.5] and an empty sequence else
+         */
         class AnimatedBlinkPrimitive2D : public AnimatedSwitchPrimitive2D
         {
         protected:
         public:
+            /// constructor
             AnimatedBlinkPrimitive2D(
                 const animation::AnimationEntry& rAnimationEntry,
                 const Primitive2DSequence& rChildren,
                 bool bIsTextAnimation);
 
-            // create local decomposition
+            /// create local decomposition
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -120,24 +147,32 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** AnimatedInterpolatePrimitive2D class
+
+            Specialized on multi-step animations based on matrix transformations. The
+            Child sequelce will be embedded in a matrix transformation. That transformation
+            will be linearly combined from the decomposed values and the animation value
+            to allow a smooth animation.
+         */
         class AnimatedInterpolatePrimitive2D : public AnimatedSwitchPrimitive2D
         {
         private:
-            // the transformations
+            /// the transformations
             std::vector< basegfx::tools::B2DHomMatrixBufferedDecompose >        maMatrixStack;
 
         protected:
         public:
+            /// constructor
             AnimatedInterpolatePrimitive2D(
                 const std::vector< basegfx::B2DHomMatrix >& rmMatrixStack,
                 const animation::AnimationEntry& rAnimationEntry,
                 const Primitive2DSequence& rChildren,
                 bool bIsTextAnimation);
 
-            // create local decomposition
+            /// create local decomposition
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/backgroundcolorprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/backgroundcolorprimitive2d.hxx
index 7b998fd3e749..82a568fc9ea1 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/backgroundcolorprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/backgroundcolorprimitive2d.hxx
@@ -46,35 +46,48 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** AnimatedInterpolatePrimitive2D class
+
+            This primitive is defined to fill the whole visible Viewport with
+            the given color (and thus decomposes to a filled polygon). This
+            makes it a view-depnendent primitive by definition. It only has
+            a valid decomposition if a valid Viewport is given in the
+            ViewInformation2D at decomposition time.
+
+            It will try to buffer it's last decomposition using maLastViewport
+            to detect changes in the get2DDecomposition call.
+         */
         class BackgroundColorPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the fill color to use
             basegfx::BColor                             maBColor;
 
-            // the last used viewInformation, used from getDecomposition for buffering
+            /// the last used viewInformation, used from getDecomposition for buffering
             basegfx::B2DRange                           maLastViewport;
 
         protected:
-            // create local decomposition
+            /// create local decomposition
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             BackgroundColorPrimitive2D(
                 const basegfx::BColor& rBColor);
 
-            // get data
+            /// data read access
             const basegfx::BColor& getBColor() const { return maBColor; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get 2d range
+            /// get B2Drange
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
 
-            // Overload standard getDecomposition call to be view-dependent here
+            /// Overload standard getDecomposition call to be view-dependent here
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/baseprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/baseprimitive2d.hxx
index f41863f36992..6cf45ffefe54 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/baseprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/baseprimitive2d.hxx
@@ -76,7 +76,9 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        /** Baseclass for all C++ implementations of com::sun::star::graphic::XPrimitive2D
+        /** BasePrimitive2D class
+
+            Baseclass for all C++ implementations of com::sun::star::graphic::XPrimitive2D
 
             This class is strongly virtual due to the lack of getPrimitiveID() implementation.
             This is by purpose, this base class shall not be incarnated and be used directly as
@@ -201,7 +203,9 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        /** Baseclass for all C++ implementations of com::sun::star::graphic::XPrimitive2D
+        /** BufferedDecompositionPrimitive2D class
+
+            Baseclass for all C++ implementations of com::sun::star::graphic::XPrimitive2D
             which want to buffer the decomoposition result
 
             Buffering the decomposition is the most-used buffering and is thus used my most
@@ -270,23 +274,24 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        // get B2DRange from a given Primitive2DReference
+        /// get B2DRange from a given Primitive2DReference
         basegfx::B2DRange getB2DRangeFromPrimitive2DReference(const Primitive2DReference& rCandidate, const geometry::ViewInformation2D& aViewInformation);
 
-        // get B2DRange from a given Primitive2DSequence
+        /// get B2DRange from a given Primitive2DSequence
         basegfx::B2DRange getB2DRangeFromPrimitive2DSequence(const Primitive2DSequence& rCandidate, const geometry::ViewInformation2D& aViewInformation);
 
-        // compare two Primitive2DReferences for equality, including trying to get implementations (BasePrimitive2D)
-        // and using compare operator
+        /** compare two Primitive2DReferences for equality, including trying to get implementations (BasePrimitive2D)
+            and using compare operator
+         */
         bool arePrimitive2DReferencesEqual(const Primitive2DReference& rA, const Primitive2DReference& rB);
 
-        // compare two Primitive2DReferences for equality, uses arePrimitive2DReferencesEqual internally
+        /// compare two Primitive2DReferences for equality, uses arePrimitive2DReferencesEqual internally
         bool arePrimitive2DSequencesEqual(const Primitive2DSequence& rA, const Primitive2DSequence& rB);
 
-        // concatenate sequence
+        /// concatenate sequence
         void appendPrimitive2DSequenceToPrimitive2DSequence(Primitive2DSequence& rDest, const Primitive2DSequence& rSource);
 
-        // concatenate single Primitive2D
+        /// concatenate single Primitive2D
         void appendPrimitive2DReferenceToPrimitive2DSequence(Primitive2DSequence& rDest, const Primitive2DReference& rSource);
 
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/borderlineprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/borderlineprimitive2d.hxx
index 209b0ed17e40..b13528184f3b 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/borderlineprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/borderlineprimitive2d.hxx
@@ -46,25 +46,41 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** BorderLinePrimitive2D class
+
+            This is the basic primitive to build frames around objects, e.g. tables.
+            It defines a single or double line from Start to nd using the LeftWidth,
+            Distance and RightWidth definitions.
+            The LineStart/End overlap is defined by the Extend(Inner|Outer)(Start|End)
+            definitions.
+         */
         class BorderLinePrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the line definition
             basegfx::B2DPoint                               maStart;
             basegfx::B2DPoint                               maEnd;
+
+            /// the widths of single/double line
             double                                          mfLeftWidth;
             double                                          mfDistance;
             double                                          mfRightWidth;
+
+            /// edge overlap sizes
             double                                          mfExtendInnerStart;
             double                                          mfExtendInnerEnd;
             double                                          mfExtendOuterStart;
             double                                          mfExtendOuterEnd;
+
+            /// the line color
             basegfx::BColor                                 maRGBColor;
 
-            // bitfield
+            /// bitfield
+            /// flags to influence inside/outside creation
             unsigned                                        mbCreateInside : 1;
             unsigned                                        mbCreateOutside : 1;
 
-            // helpers
+            /// local helpers
             double getCorrectedLeftWidth() const
             {
                 return basegfx::fTools::equal(1.0, mfLeftWidth) ? 0.0 : mfLeftWidth;
@@ -106,10 +122,11 @@ namespace drawinglayer
             }
 
         protected:
-            // create local decomposition
+            /// create local decomposition
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             BorderLinePrimitive2D(
                 const basegfx::B2DPoint& rStart,
                 const basegfx::B2DPoint& rEnd,
@@ -124,7 +141,7 @@ namespace drawinglayer
                 bool bCreateOutside,
                 const basegfx::BColor& rRGBColor);
 
-            // get data
+            /// data read access
             const basegfx::B2DPoint& getStart() const { return maStart; }
             const basegfx::B2DPoint& getEnd() const { return maEnd; }
             double getLeftWidth() const { return mfLeftWidth; }
@@ -138,10 +155,10 @@ namespace drawinglayer
             bool getCreateOutside() const { return mbCreateOutside; }
             const basegfx::BColor& getRGBColor() const { return maRGBColor; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/chartprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/chartprimitive2d.hxx
index 95c53347debb..b153e04ee1cb 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/chartprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/chartprimitive2d.hxx
@@ -46,6 +46,12 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** ChartPrimitive2D class
+
+            This is a helper primitive which decomposes to the ChartMetaFile
+            visualisation. It is used to allow specific renderers to do something
+            direct for visualising the chart.
+         */
         class ChartPrimitive2D : public GroupPrimitive2D
         {
         private:
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/controlprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/controlprimitive2d.hxx
index 974faf506da8..5dd55405adf7 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/controlprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/controlprimitive2d.hxx
@@ -47,63 +47,74 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** ControlPrimitive2D class
+
+            Base class for ControlPrimitive handling. It decoposes to a
+            graphical representation (Bitmap data) of the control. This
+            representation is limited to a quadratic pixel maximum defined
+            in the applicatin settings.
+         */
         class ControlPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
-            // object's base data
+            /// object's base data
             basegfx::B2DHomMatrix                                                   maTransform;
             com::sun::star::uno::Reference< com::sun::star::awt::XControlModel >    mxControlModel;
 
-            // the created an cached awt::XControl
+            /// the created an cached awt::XControl
             com::sun::star::uno::Reference< com::sun::star::awt::XControl >         mxXControl;
 
-            // the last used scaling, used from getDecomposition for buffering
+            /// the last used scaling, used from getDecomposition for buffering
             basegfx::B2DVector                                                      maLastViewScaling;
 
-            // used from getXControl() to create a local awt::XControl which is remembered in mxXControl
-            // and from thereon always used and returned by getXControl()
+            /** used from getXControl() to create a local awt::XControl which is remembered in mxXControl
+                and from thereon always used and returned by getXControl()
+             */
             void createXControl();
 
-            // single local decompositions, used from create2DDecomposition()
+            /// single local decompositions, used from create2DDecomposition()
             Primitive2DReference createBitmapDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
             Primitive2DReference createPlaceholderDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         protected:
-            // local decomposition
+            /// local decomposition
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             ControlPrimitive2D(
                 const basegfx::B2DHomMatrix& rTransform,
                 const com::sun::star::uno::Reference< com::sun::star::awt::XControlModel >& rxControlModel);
 
-            // constructor with an additional XControl as parameter to allow to hand it over at incarnation time
-            // if it exists. This will avoid to create a 2nd one on demand in createXControl()
-            // and thus double the XControls.
+            /** constructor with an additional XControl as parameter to allow to hand it over at incarnation time
+                if it exists. This will avoid to create a 2nd one on demand in createXControl()
+                and thus double the XControls.
+             */
             ControlPrimitive2D(
                 const basegfx::B2DHomMatrix& rTransform,
                 const com::sun::star::uno::Reference< com::sun::star::awt::XControlModel >& rxControlModel,
                 const com::sun::star::uno::Reference< com::sun::star::awt::XControl >& rxXControl);
 
-            // get data
+            /// data read access
             const basegfx::B2DHomMatrix& getTransform() const { return maTransform; }
             const com::sun::star::uno::Reference< com::sun::star::awt::XControlModel >& getControlModel() const { return mxControlModel; }
 
-            // mxControl access. This will on demand create the awt::XControl using createXControl()
-            // if it does not exist. It may already have been created or even handed over at
-            // incarnation
+            /** mxControl access. This will on demand create the awt::XControl using createXControl()
+                if it does not exist. It may already have been created or even handed over at
+                incarnation
+             */
             const com::sun::star::uno::Reference< com::sun::star::awt::XControl >& getXControl() const;
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
 
-            // Overload standard getDecomposition call to be view-dependent here
+            /// Overload standard getDecomposition call to be view-dependent here
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/embedded3dprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/embedded3dprimitive2d.hxx
index 86540d53e325..c27b6874891f 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/embedded3dprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/embedded3dprimitive2d.hxx
@@ -42,52 +42,65 @@
 #include <basegfx/matrix/b2dhommatrix.hxx>
 
 //////////////////////////////////////////////////////////////////////////////
-// BackgroundColorPrimitive2D class
+// Embedded3DPrimitive2D class
 
 namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** Embedded3DPrimitive2D class
+
+            This is a helper primitive which allows embedding of single 3D
+            primitives to the 2D primitive logic. It will get the scene it's
+            involved and thus the 3D transformation. With this information it
+            is able to provide 2D range data for a 3D primitive.
+
+            This primitive will not be visualized and decomposes to a yellow
+            2D rectangle to visualize that this should never be visualized
+         */
         class Embedded3DPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
-            // the sequence of 3d primitives
+            /// the sequence of 3d primitives
             primitive3d::Primitive3DSequence                    mxChildren3D;
 
-            // the 2D scene object transformation
+            /// the 2D scene object transformation
             basegfx::B2DHomMatrix                               maObjectTransformation;
 
-            // the 3D transformations
+            /// the 3D transformations
             geometry::ViewInformation3D                         maViewInformation3D;
 
-            // if the embedded 3D primitives contain shadow, these parameters are needed
-            // to extract the shadow wich is a sequence od 2D primitives and may expand
-            // the 2D range. Since every single 3D object in a scene may individually
-            // have shadow or not, these values need to be provided and prepared. The shadow
-            // distance itself (a 2D transformation) is part of the 3D shadow definition
+            /** if the embedded 3D primitives contain shadow, these parameters are needed
+                to extract the shadow wich is a sequence od 2D primitives and may expand
+                the 2D range. Since every single 3D object in a scene may individually
+                have shadow or not, these values need to be provided and prepared. The shadow
+                distance itself (a 2D transformation) is part of the 3D shadow definition
+             */
             basegfx::B3DVector                                  maLightNormal;
             double                                              mfShadowSlant;
             basegfx::B3DRange                                   maScene3DRange;
 
-            // the primitiveSequence for on-demand created shadow primitives (see mbShadow3DChecked)
+            /// the primitiveSequence for on-demand created shadow primitives (see mbShadow3DChecked)
             Primitive2DSequence                                 maShadowPrimitives;
 
-            // #i96669# add simple range buffering for this primitive
+            /// #i96669# add simple range buffering for this primitive
             basegfx::B2DRange                                   maB2DRange;
 
-            // bitfield
-            // flag if given 3D geometry is already cheched for shadow definitions and 2d shadows
-            // are created in maShadowPrimitives
+            /// bitfield
+            /** flag if given 3D geometry is already cheched for shadow definitions and 2d shadows
+                are created in maShadowPrimitives
+             */
             unsigned                                            mbShadow3DChecked : 1;
 
-            // private helpers
+            /// private helpers
             bool impGetShadow3D(const geometry::ViewInformation2D& rViewInformation) const;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             Embedded3DPrimitive2D(
                 const primitive3d::Primitive3DSequence& rxChildren3D,
                 const basegfx::B2DHomMatrix& rObjectTransformation,
@@ -96,7 +109,7 @@ namespace drawinglayer
                 double fShadowSlant,
                 const basegfx::B3DRange& rScene3DRange);
 
-            // get data
+            /// get data
             const primitive3d::Primitive3DSequence& getChildren3D() const { return mxChildren3D; }
             const basegfx::B2DHomMatrix& getObjectTransformation() const { return maObjectTransformation; }
             const geometry::ViewInformation3D& getViewInformation3D() const { return maViewInformation3D; }
@@ -104,13 +117,13 @@ namespace drawinglayer
             double getShadowSlant() const { return mfShadowSlant; }
             const basegfx::B3DRange& getScene3DRange() const { return maScene3DRange; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/fillbitmapprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/fillbitmapprimitive2d.hxx
index c2d305b78c11..7d2b084a9356 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/fillbitmapprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/fillbitmapprimitive2d.hxx
@@ -47,32 +47,49 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** FillBitmapPrimitive2D class
+
+            This class defines a bitmap filling for a rectangular area. The
+            Range is defined by the Transformation, the fill by the FillBitmapAttribute.
+            There, the fill consists of a Bitmap (not transparent) defining the fill data
+            and a Point/Vector pair defining the relative position/size [0.0 .. 1.0]
+            inside the area where the bitmap is positioned. A flag defines then if this
+            is tiled or not.
+
+            Renderers should handle this primitive; it has a geometrically correct
+            decomposition, but on pixel oututs the areas where the tiled pieces are
+            aligned tend to show up (one overlapping or empty pixel)
+         */
         class FillBitmapPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the geometric definition
             basegfx::B2DHomMatrix                       maTransformation;
+
+            /// the fill attributes
             attribute::FillBitmapAttribute              maFillBitmap;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             FillBitmapPrimitive2D(
                 const basegfx::B2DHomMatrix& rTransformation,
                 const attribute::FillBitmapAttribute& rFillBitmap);
 
-            // get data
+            /// data read access
             const basegfx::B2DHomMatrix& getTransformation() const { return maTransformation; }
             const attribute::FillBitmapAttribute& getFillBitmap() const { return maFillBitmap; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==( const BasePrimitive2D& rPrimitive ) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/fillgradientprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/fillgradientprimitive2d.hxx
index f995bb487b33..d6853e69b149 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/fillgradientprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/fillgradientprimitive2d.hxx
@@ -46,32 +46,44 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** FillGradientPrimitive2D class
+
+            This class defines a gradient filling for a rectangular area. The
+            Range is defined by the Transformation, the gradient by the FillGradientAttribute.
+
+            The decomposition will deliver the decomposed gradient, e.g. for an ellipse
+            gradient the various ellipses in various color steps will be created.
+         */
         class FillGradientPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the geometric definition
             basegfx::B2DRange                       maObjectRange;
+
+            /// the gradient definition
             attribute::FillGradientAttribute        maFillGradient;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             FillGradientPrimitive2D(
                 const basegfx::B2DRange& rObjectRange,
                 const attribute::FillGradientAttribute& rFillGradient);
 
-            // get data
+            /// data read access
             const basegfx::B2DRange& getObjectRange() const { return maObjectRange; }
             const attribute::FillGradientAttribute& getFillGradient() const { return maFillGradient; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/fillhatchprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/fillhatchprimitive2d.hxx
index 6181630e948d..1df3bb103eb0 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/fillhatchprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/fillhatchprimitive2d.hxx
@@ -40,41 +40,56 @@
 #include <drawinglayer/attribute/fillattribute.hxx>
 
 //////////////////////////////////////////////////////////////////////////////
-// FillbitmapPrimitive2D class
+// FillHatchPrimitive2D class
 
 namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** FillHatchPrimitive2D class
+
+            This class defines a hatch filling for a rectangular area. The
+            Range is defined by the Transformation, the hatch by the FillHatchAttribute.
+            If the background is to be filled, a flag in FillHatchAttribute is set and
+            the BColor defines the background color.
+
+            The decomposition will deliver the hatch lines.
+         */
         class FillHatchPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the geometric definition
             basegfx::B2DRange                       maObjectRange;
+
+            /// the hatch definition
             attribute::FillHatchAttribute           maFillHatch;
+
+            /// hatch background color (if used)
             basegfx::BColor                         maBColor;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             FillHatchPrimitive2D(
                 const basegfx::B2DRange& rObjectRange,
                 const basegfx::BColor& rBColor,
                 const attribute::FillHatchAttribute& rFillHatch);
 
-            // get data
+            /// data read access
             const basegfx::B2DRange& getObjectRange() const { return maObjectRange; }
             const attribute::FillHatchAttribute& getFillHatch() const { return maFillHatch; }
             const basegfx::BColor& getBColor() const { return maBColor; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/graphicprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/graphicprimitive2d.hxx
index 33923eebc259..e6adcacc97e0 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/graphicprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/graphicprimitive2d.hxx
@@ -46,18 +46,39 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** GraphicPrimitive2D class
+
+            Primitive to hold graphics defined by GraphicObject and GraphicAttr
+            combination. This includes MetaFiles and diverse pixel-oriented graphic
+            formats. It even includes animated GIFs, Croppings and other changes
+            defined in GraphicAttr.
+
+            This makes the decomposition contain a wide variety of possibilites,
+            too. From a simple BitmapPrimitive over AnimatedSwitchPrimitive2D,
+            MetafilePrimitive2D (with and without embedding in a masking when e.g.
+            the Metafile is bigger than the geometry) and embeddings in
+            TransformPrimitive2D and MaskPrimitive2D for croppings.
+
+            The primitive geometry area is defined by Transform.
+         */
         class GraphicPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the geometric definition
             basegfx::B2DHomMatrix                       maTransform;
+
+            /// the GraphicObject with all it's content possibilities
             GraphicObject                               maGraphicObject;
+
+            /// The GraphicAttr with all it's modification possibilities
             GraphicAttr                                 maGraphicAttr;
 
         protected:
-            // local decomposition
+            /// local decomposition
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor(s)
             GraphicPrimitive2D(
                 const basegfx::B2DHomMatrix& rTransform,
                 const GraphicObject& rGraphicObject,
@@ -66,19 +87,19 @@ namespace drawinglayer
                 const basegfx::B2DHomMatrix& rTransform,
                 const GraphicObject& rGraphicObject);
 
-            // get data
+            /// data read access
             const basegfx::B2DHomMatrix& getTransform() const { return maTransform; }
             const GraphicObject& getGraphicObject() const { return maGraphicObject; }
             const GraphicAttr& getGraphicAttr() const { return maGraphicAttr; }
             bool isTransparent() const;
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/gridprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/gridprimitive2d.hxx
index d2b90e271cda..4ba83fc75c88 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/gridprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/gridprimitive2d.hxx
@@ -48,29 +48,47 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** GridPrimitive2D class
+
+            This primitive is specialized to Grid visualisation. The graphic definition
+            (Transform) contains the whole grid area, but will of course be combined
+            with the visible area (Viewport) when decomposed. Also a reolution-dependent
+            point reduction is used to not create too much grid visualisation data. This
+            makes this primitive highly view-dependent and it dynamically buffers
+            the last decomposition dependent from the Viewport used.
+         */
         class GridPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// The geometry definition for the grid area
             basegfx::B2DHomMatrix                           maTransform;
+
+            /// grid layout definitions
             double                                          mfWidth;
             double                                          mfHeight;
             double                                          mfSmallestViewDistance;
             double                                          mfSmallestSubdivisionViewDistance;
             sal_uInt32                                      mnSubdivisionsX;
             sal_uInt32                                      mnSubdivisionsY;
+
+            /// Grid color for single-pixel grid points
             basegfx::BColor                                 maBColor;
+
+            /// The Bitmap (with alpha) for grid cross points
             BitmapEx                                        maCrossMarker;
 
-            // the last used object to view transformtion and the last Viewport,
-            // used from getDecomposition for decide buffering
+            /** the last used object to view transformtion and the last Viewport,
+                used from getDecomposition for decide buffering
+             */
             basegfx::B2DHomMatrix                           maLastObjectToViewTransformation;
             basegfx::B2DRange                               maLastViewport;
 
         protected:
-            // create local decomposition
+            /// create local decomposition
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             GridPrimitive2D(
                 const basegfx::B2DHomMatrix& rTransform,
                 double fWidth,
@@ -82,7 +100,7 @@ namespace drawinglayer
                 const basegfx::BColor& rBColor,
                 const BitmapEx& rCrossMarker);
 
-            // get data
+            /// data read access
             const basegfx::B2DHomMatrix& getTransform() const { return maTransform; }
             double getWidth() const { return mfWidth; }
             double getHeight() const { return mfHeight; }
@@ -93,16 +111,16 @@ namespace drawinglayer
             const basegfx::BColor& getBColor() const { return maBColor; }
             const BitmapEx& getCrossMarker() const { return maCrossMarker; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get 2d range
+            /// get 2d range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
 
-            // Overload standard getDecomposition call to be view-dependent here
+            /// Overload standard getDecomposition call to be view-dependent here
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/groupprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/groupprimitive2d.hxx
index cd6efef472bb..89b49420a3e7 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/groupprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/groupprimitive2d.hxx
@@ -45,7 +45,9 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        /** Baseclass for all grouping 2D primitives
+        /** GroupPrimitive2D class
+
+            Baseclass for all grouping 2D primitives
 
             The grouping primitive in it's basic form is capable of holding
             a child primitive content and returns it on decomposition on default.
@@ -78,23 +80,23 @@ namespace drawinglayer
         class GroupPrimitive2D : public BasePrimitive2D
         {
         private:
-            // the children. Declared private since this shall never be changed at all after construction
+            /// the children. Declared private since this shall never be changed at all after construction
             Primitive2DSequence                             maChildren;
 
         public:
-            // constructor
+            /// constructor
             GroupPrimitive2D(const Primitive2DSequence& rChildren);
 
-            // data access
+            /// data read access
             const Primitive2DSequence& getChildren() const { return maChildren; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==( const BasePrimitive2D& rPrimitive ) const;
 
-            // local decomposition. Implementation will just return children
+            /// local decomposition. Implementation will just return children
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/helplineprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/helplineprimitive2d.hxx
index 0ba83b2c383a..a1171cb846e0 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/helplineprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/helplineprimitive2d.hxx
@@ -47,32 +47,52 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** HelplineStyle2D definition
+
+            The available styles of Helplines
+        */
         enum HelplineStyle2D
         {
             HELPLINESTYLE2D_POINT,
             HELPLINESTYLE2D_LINE
         };
 
+        /** HelplinePrimitive2D class
+
+            This primitive provides a view-dependent helpline definition. The Helpline
+            is defined by a line equation (Point and vector) and a style. When the style
+            is a line, dependent from Viewport the visible part of that Helpline is
+            constructed. For Point, a cross is constructed. This primitive is highly
+            view-dependent.
+
+            The visualisation uses the two given colors to create a dashed line with
+            the given dash length.
+         */
         class HelplinePrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// Helpline geometry definition
             basegfx::B2DPoint                               maPosition;
             basegfx::B2DVector                              maDirection;
             HelplineStyle2D                                 meStyle;
+
+            /// Helpline style definition
             basegfx::BColor                                 maRGBColA;
             basegfx::BColor                                 maRGBColB;
             double                                          mfDiscreteDashLength;
 
-            // the last used object to view transformtion and the last Viewport,
-            // used from getDecomposition for decide buffering
+            /** the last used object to view transformtion and the last Viewport,
+                used from getDecomposition for decide buffering
+             */
             basegfx::B2DHomMatrix                           maLastObjectToViewTransformation;
             basegfx::B2DRange                               maLastViewport;
 
         protected:
-            // create local decomposition
+            /// create local decomposition
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             HelplinePrimitive2D(
                 const basegfx::B2DPoint& rPosition,
                 const basegfx::B2DVector& rDirection,
@@ -81,7 +101,7 @@ namespace drawinglayer
                 const basegfx::BColor& aRGBColB,
                 double fDiscreteDashLength);
 
-            // get data
+            /// data read access
             const basegfx::B2DPoint getPosition() const { return maPosition; }
             const basegfx::B2DVector getDirection() const { return maDirection; }
             HelplineStyle2D getStyle() const { return meStyle; }
@@ -89,13 +109,13 @@ namespace drawinglayer
             const basegfx::BColor& getRGBColB() const { return maRGBColB; }
             double getDiscreteDashLength() const { return mfDiscreteDashLength; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
 
-            // Overload standard getDecomposition call to be view-dependent here
+            /// Overload standard getDecomposition call to be view-dependent here
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/hittestprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/hittestprimitive2d.hxx
index 1df9ca2111af..3b69c685c985 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/hittestprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/hittestprimitive2d.hxx
@@ -44,29 +44,35 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        // This primitive is used to represent geometry for non-visible objects,
-        // e.g. a PresObj's outline. To still be able to use primitives for HitTest
-        // functionality, the 2d decompositions will produce an as much as possible
-        // simplified line geometry encapsulated in this primtive when there is no
-        // line geometry. In a further enchanced version this may change to 'if neither
-        // filled nor lines' creation criteria. The whole primitive decomposes to nothing,
-        // so no one not knowing it will be influenced. Only helper processors for hit test
-        // (and maybe BoundRect extractors) will use it and it's children subcontent.
+        /** HitTestPrimitive2D class
+
+            This primitive is used to represent geometry for non-visible objects,
+            e.g. a PresObj's outline. To still be able to use primitives for HitTest
+            functionality, the 2d decompositions will produce an as much as possible
+            simplified line geometry encapsulated in this primtive when there is no
+            line geometry. In a further enchanced version this may change to 'if neither
+            filled nor lines' creation criteria. The whole primitive decomposes to nothing,
+            so no one not knowing it will be influenced. Only helper processors for hit test
+            (and maybe BoundRect extractors) will use it and it's children subcontent.
+         */
         class HitTestPrimitive2D : public GroupPrimitive2D
         {
         public:
+            /// constructor
             HitTestPrimitive2D(const Primitive2DSequence& rChildren);
 
-            // despite returning an empty decomposition since it's no visualisation data,
-            // range calculation is intended to use invisible replacement geometry, so
-            // the local implementation will return the children's range
+            /** despite returning an empty decomposition since it's no visualisation data,
+                range calculation is intended to use invisible replacement geometry, so
+                the local implementation will return the children's range
+             */
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // local decomposition. Implementation will return empty Primitive2DSequence
-            // since this is no visualisation data
+            /** local decomposition. Implementation will return empty Primitive2DSequence
+                since this is no visualisation data
+             */
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/invertprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/invertprimitive2d.hxx
index ae7a316e03da..9ba7e7796395 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/invertprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/invertprimitive2d.hxx
@@ -44,12 +44,23 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** HitTestPrimitive2D class
+
+            This is a helper class which encapsulates geometry that should be
+            painted XOR, e.g. old cursor visualisations. It decomposes to
+            it's content, so when not supporting it, the contained geometry
+            will be visualized normally.
+            Unfortunately this is still needed, but hard to support on various
+            systems. XOR painting needs read access to the target, so modern
+            graphic systems tend to not support it anymore.
+         */
         class InvertPrimitive2D : public GroupPrimitive2D
         {
         public:
+            /// constructor
             InvertPrimitive2D(const Primitive2DSequence& rChildren);
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/markerarrayprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/markerarrayprimitive2d.hxx
index 77f450403302..cc4c054f8bb3 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/markerarrayprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/markerarrayprimitive2d.hxx
@@ -41,38 +41,55 @@
 #include <vcl/bitmapex.hxx>
 
 //////////////////////////////////////////////////////////////////////////////
-// MarkerPrimitive2D class
+// MarkerArrayPrimitive2D class
 
 namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** MarkerArrayPrimitive2D class
+
+            This primtive defines an array of markers. Their size is defined
+            in pixels and independent from the view transformation which makes
+            this primitive highly view-dependent. It is also transformation
+            invariant, so that the bitmap is always visualized unscaled and
+            unrotated.
+            It is used e.g. for grid position visualisation. The given Bitmap
+            (with alpha) is defined to be visible centered at each of the given
+            positions.
+            It decomposes to the needed number of BitmapPrimitive2D's, so it would
+            be efficient to handle it directly in a renderer.
+         */
         class MarkerArrayPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the positions for the marker
             std::vector< basegfx::B2DPoint >                maPositions;
+
+            /// the marker definintion to visualize
             BitmapEx                                        maMarker;
 
         protected:
-            // create local decomposition
+            /// create local decomposition
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             MarkerArrayPrimitive2D(
                 const std::vector< basegfx::B2DPoint >& rPositions,
                 const BitmapEx& rMarker);
 
-            // get data
+            /// data read access
             const std::vector< basegfx::B2DPoint >& getPositions() const { return maPositions; }
             const BitmapEx& getMarker() const { return maMarker; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/maskprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/maskprimitive2d.hxx
index 9be17376941e..72d5bd3b9b6b 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/maskprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/maskprimitive2d.hxx
@@ -45,23 +45,39 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** MaskPrimitive2D class
+
+            This is the central masking primitive. It's a grouping
+            primitive and contains a PolyPolygon which defines the visible
+            area. Only visualisation parts of the Child primitive sequence
+            inside of the mask PolyPolygon is defined to be visible.
+
+            This primitive should be handled by a renderer. If it is not handled,
+            it decomposes to it's Child content, and thus the visualisation would
+            contaiun no clips.
+
+            The geometrc range of this primitive is completely defined by the Mask
+            PolyPolygon since by definition nothing outside of the mask is visible.
+         */
         class MaskPrimitive2D : public GroupPrimitive2D
         {
         private:
+            /// the mask PolyPolygon
             basegfx::B2DPolyPolygon                 maMask;
 
         public:
+            /// constructor
             MaskPrimitive2D(
                 const basegfx::B2DPolyPolygon& rMask,
                 const Primitive2DSequence& rChildren);
 
-            // get data
+            /// data read access
             const basegfx::B2DPolyPolygon& getMask() const { return maMask; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/mediaprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/mediaprimitive2d.hxx
index da8e49b644c6..e5f884f09294 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/mediaprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/mediaprimitive2d.hxx
@@ -46,38 +46,55 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** MediaPrimitive2D class
+
+            This is a unified primitive for Media visualisation, e.g. animations
+            or sounds. It's geometry is defined by Transform. For conveinience,
+            it also contains a discrete border size (aka Pixels) which will be added
+            if used. This makes it a view-dependent primitive. It also gets a filled
+            background and the decomposition will try to create a graphic representation
+            if te content (defined by the URL), e.g. a still frome for animated stuff.
+         */
         class MediaPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the geometry definition
             basegfx::B2DHomMatrix                       maTransform;
+
+            /// the content definition
             rtl::OUString                               maURL;
+
+            /// style: background color
             basegfx::BColor                             maBackgroundColor;
+
+            /// discrete border (in 'pixels')
             sal_uInt32                                  mnDiscreteBorder;
 
         protected:
-            // local decomposition
+            /// local decomposition
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             MediaPrimitive2D(
                 const basegfx::B2DHomMatrix& rTransform,
                 const rtl::OUString& rURL,
                 const basegfx::BColor& rBackgroundColor,
                 sal_uInt32 nDiscreteBorder);
 
-            // get data
+            /// data read access
             const basegfx::B2DHomMatrix& getTransform() const { return maTransform; }
             const rtl::OUString& getURL() const { return maURL; }
             const basegfx::BColor& getBackgroundColor() const { return maBackgroundColor; }
             sal_uInt32 getDiscreteBorder() const { return mnDiscreteBorder; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/metafileprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/metafileprimitive2d.hxx
index 23eb5dd1b36e..039db9387024 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/metafileprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/metafileprimitive2d.hxx
@@ -47,28 +47,52 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** MediaPrimitive2D class
+
+            This is the MetaFile representing primitive. It's geometry is defined
+            by MetaFileTransform. The content (defined by MetaFile) will be scaled
+            to the geometric definiton by using PrefMapMode and PrefSize of the
+            Metafile.
+
+            It has shown that this not always guarantees that all Metafile content
+            is inside the geometric definition, but this primitive defines that this
+            is the case to allow a getB2DRange implementation. If it cannot be
+            guaranteed that the Metafile is inside the geometric definition, it should
+            be embedded to a MaskPrimitive2D.
+
+            This primitive has no decomposition yet, so when not supported by a renderer,
+            it will not be visualized.
+
+            In the future, a decomposition implementation would be appreciated and would
+            have many advantages; Metafile would no longer have to be rendered by
+            sub-systems and a standard way for converting Metafiles would exist.
+         */
         class MetafilePrimitive2D : public BasePrimitive2D
         {
         private:
+            /// the geometry definition
             basegfx::B2DHomMatrix                       maMetaFileTransform;
+
+            /// the content definition
             GDIMetaFile                                 maMetaFile;
 
         public:
+            /// constructor
             MetafilePrimitive2D(
                 const basegfx::B2DHomMatrix& rMetaFileTransform,
                 const GDIMetaFile& rMetaFile);
 
-            // get data
+            /// data read access
             const basegfx::B2DHomMatrix& getTransform() const { return maMetaFileTransform; }
             const GDIMetaFile& getMetaFile() const { return maMetaFile; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx
index 903ba89c9a5b..e93dd523e0b7 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx
@@ -45,23 +45,42 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** ModifiedColorPrimitive2D class
+
+            This primitive is a grouping primitive and allows to define
+            how the colors of it's child content shall be modified for
+            visualisation. This can be (and is) used e.g. for generic shadow
+            visualisation by forcing all color usages of the contained
+            sub-content to the shadow color.
+
+            For the possibilities of color modifications, please refer
+            to the basegfx::BColorModifier definitions in basegfx. For
+            processing there is tooling in basegfx to build a stack of
+            BColorModifiers to always be able to proccess the correct
+            colors.
+
+            If a renderer does not handle this primitive, the content will
+            be visualized unchanged.
+         */
         class ModifiedColorPrimitive2D : public GroupPrimitive2D
         {
         private:
+            /// The ColorModifier to use
             basegfx::BColorModifier                 maColorModifier;
 
         public:
+            /// constructor
             ModifiedColorPrimitive2D(
                 const Primitive2DSequence& rChildren,
                 const basegfx::BColorModifier& rColorModifier);
 
-            // get data
+            /// data read access
             const basegfx::BColorModifier& getColorModifier() const { return maColorModifier; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/pagepreviewprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/pagepreviewprimitive2d.hxx
index 52ed2435f5e7..5eca0ac2ab13 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/pagepreviewprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/pagepreviewprimitive2d.hxx
@@ -46,38 +46,43 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        // This primitive is needed to have the correct XDrawPage as ViewInformation for decomposing
-        // the page contents (given as PageContent here) if these contain e.g.
-        // view-dependent (in this case XDrawPage-dependent) text fields like PageNumber. If You want
-        // those primitives to be visualized correctly, Your renderer needs to locally correct it's
-        // ViewInformation2D to reference the new XDrawPage.
+        /** PagePreviewPrimitive2D class
+
+            This primitive is needed to have the correct XDrawPage as ViewInformation for decomposing
+            the page contents (given as PageContent here) if these contain e.g.
+            view-dependent (in this case XDrawPage-dependent) text fields like PageNumber. If You want
+            those primitives to be visualized correctly, Your renderer needs to locally correct it's
+            ViewInformation2D to reference the new XDrawPage.
+         */
         class PagePreviewPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
-            // the XDrawPage visualized by this primitive. When we go forward with primitives
-            // this will not only be used by the renderers to provide the correct decompose
-            // graphic attribute context, but also to completely create the page's sub-content.
+            /** the XDrawPage visualized by this primitive. When we go forward with primitives
+                this will not only be used by the renderers to provide the correct decompose
+                graphic attribute context, but also to completely create the page's sub-content.
+             */
             const ::com::sun::star::uno::Reference< ::com::sun::star::drawing::XDrawPage > mxDrawPage;
 
-            // the PageContent
+            /// the PageContent
             Primitive2DSequence                         maPageContent;
 
-            // the own geometry
+            /// the own geometry
             basegfx::B2DHomMatrix                       maTransform;
 
-            // content width and height
+            /// content width and height
             double                                      mfContentWidth;
             double                                      mfContentHeight;
 
-            // bitfield
-            // flag to allow keeping the aspect ratio
+            /// bitfield
+            /// flag to allow keeping the aspect ratio
             unsigned                                    mbKeepAspectRatio : 1;
 
         protected:
-            // local decomposition. Implementation will just return children
+            /// local decomposition. Implementation will just return children
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             PagePreviewPrimitive2D(
                 const ::com::sun::star::uno::Reference< ::com::sun::star::drawing::XDrawPage >& rxDrawPage,
                 const basegfx::B2DHomMatrix& rTransform,
@@ -86,7 +91,7 @@ namespace drawinglayer
                 const Primitive2DSequence& rPageContent,
                 bool bKeepAspectRatio);
 
-            // get data
+            /// data read access
             const ::com::sun::star::uno::Reference< ::com::sun::star::drawing::XDrawPage >& getXDrawPage() const { return mxDrawPage; }
             const Primitive2DSequence& getPageContent() const { return maPageContent; }
             const basegfx::B2DHomMatrix& getTransform() const { return maTransform; }
@@ -94,13 +99,13 @@ namespace drawinglayer
             double getContentHeight() const { return mfContentHeight; }
             bool getKeepAspectRatio() const { return mbKeepAspectRatio; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // own getB2DRange
+            /// own getB2DRange
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/pointarrayprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/pointarrayprimitive2d.hxx
index 7e82f53c2401..793c96444bac 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/pointarrayprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/pointarrayprimitive2d.hxx
@@ -40,37 +40,51 @@
 #include <basegfx/color/bcolor.hxx>
 
 //////////////////////////////////////////////////////////////////////////////
-// MarkerPrimitive2D class
+// PointArrayPrimitive2D class
 
 namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PointArrayPrimitive2D class
+
+            This primitive defines single,discrete 'pixels' for the given
+            positions in the given color. This makes it view-dependent since
+            the logic size of a 'pixel' depends on the view transformation.
+
+            This is one of the non-decomposable primitives, so a renderer
+            should proccess it (Currently it is only used for grid visualisation,
+            but this may change).
+         */
         class PointArrayPrimitive2D : public BasePrimitive2D
         {
         private:
+            /// the array of positions
             std::vector< basegfx::B2DPoint >                maPositions;
+
+            /// the color to use
             basegfx::BColor                                 maRGBColor;
 
-            // #i96669# add simple range buffering for this primitive
+            /// #i96669# add simple range buffering for this primitive
             basegfx::B2DRange                               maB2DRange;
 
         public:
+            /// constructor
             PointArrayPrimitive2D(
                 const std::vector< basegfx::B2DPoint >& rPositions,
                 const basegfx::BColor& rRGBColor);
 
-            // get data
+            /// data read access
             const std::vector< basegfx::B2DPoint >& getPositions() const { return maPositions; }
             const basegfx::BColor& getRGBColor() const { return maRGBColor; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/polygonprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/polygonprimitive2d.hxx
index 4e04786fb2e5..4c6f5b49bf01 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/polygonprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/polygonprimitive2d.hxx
@@ -49,26 +49,40 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PolygonHairlinePrimitive2D class
+
+            This primitive defines a Hairline. Since hairlines are view-dependent,
+            this primitive is view-dependent, too.
+
+            This is one of the non-decomposable primitives, so a renderer
+            should proccess it.
+         */
         class PolygonHairlinePrimitive2D : public BasePrimitive2D
         {
         private:
+            /// the hairline geometry
             basegfx::B2DPolygon                     maPolygon;
+
+            /// the hairline color
             basegfx::BColor                         maBColor;
 
         public:
-            PolygonHairlinePrimitive2D(const basegfx::B2DPolygon& rPolygon, const basegfx::BColor& rBColor);
+            /// constructor
+            PolygonHairlinePrimitive2D(
+                const basegfx::B2DPolygon& rPolygon,
+                const basegfx::BColor& rBColor);
 
-            // get data
+            /// data read access
             const basegfx::B2DPolygon& getB2DPolygon() const { return maPolygon; }
             const basegfx::BColor& getBColor() const { return maBColor; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -81,44 +95,59 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PolygonMarkerPrimitive2D class
+
+            This primitive defines a two-colored marker hairline which is
+            dashed with the given dash length. Since hairlines are view-dependent,
+            this primitive is view-dependent, too.
+
+            It will be decomposed to the needed PolygonHairlinePrimitive2D if
+            not handled directly by a renderer.
+         */
         class PolygonMarkerPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the marker hairline geometry
             basegfx::B2DPolygon                     maPolygon;
+
+            /// the two colors
             basegfx::BColor                         maRGBColorA;
             basegfx::BColor                         maRGBColorB;
+
+            /// the dash distance in 'pixels'
             double                                  mfDiscreteDashLength;
 
-            // decomposition is view-dependent, remember last InverseObjectToViewTransformation
+            /// decomposition is view-dependent, remember last InverseObjectToViewTransformation
             basegfx::B2DHomMatrix                   maLastInverseObjectToViewTransformation;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             PolygonMarkerPrimitive2D(
                 const basegfx::B2DPolygon& rPolygon,
                 const basegfx::BColor& rRGBColorA,
                 const basegfx::BColor& rRGBColorB,
                 double fDiscreteDashLength);
 
-            // get data
+            /// data read access
             const basegfx::B2DPolygon& getB2DPolygon() const { return maPolygon; }
             const basegfx::BColor& getRGBColorA() const { return maRGBColorA; }
             const basegfx::BColor& getRGBColorB() const { return maRGBColorB; }
             double getDiscreteDashLength() const { return mfDiscreteDashLength; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // get local decomposition. Overloaded since this decomposition is view-dependent
+            /// get local decomposition. Overloaded since this decomposition is view-dependent
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -131,39 +160,52 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PolygonStrokePrimitive2D class
+
+            This primitive defines a line with line width, line join, line color
+            and stroke attributes. It will be decomposed dependent on the definition
+            to the needed primitives, e.g. filled PolyPolygons for fat lines.
+         */
         class PolygonStrokePrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the line geometry
             basegfx::B2DPolygon                     maPolygon;
+
+            /// the line attributes like width, join and color
             attribute::LineAttribute                maLineAttribute;
+
+            /// the line stroking (if used)
             attribute::StrokeAttribute              maStrokeAttribute;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             PolygonStrokePrimitive2D(
                 const basegfx::B2DPolygon& rPolygon,
                 const attribute::LineAttribute& rLineAttribute,
                 const attribute::StrokeAttribute& rStrokeAttribute);
 
+            /// constructor without stroking
             PolygonStrokePrimitive2D(
                 const basegfx::B2DPolygon& rPolygon,
                 const attribute::LineAttribute& rLineAttribute);
 
-            // get data
+            /// data read access
             basegfx::B2DPolygon getB2DPolygon() const { return maPolygon; }
             const attribute::LineAttribute& getLineAttribute() const { return maLineAttribute; }
             const attribute::StrokeAttribute& getStrokeAttribute() const { return maStrokeAttribute; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -176,17 +218,24 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PolygonWavePrimitive2D class
+
+            This primitive defines a waveline based on a PolygonStrokePrimitive2D
+            where the wave is defined by wave width and wave length.
+         */
         class PolygonWavePrimitive2D : public PolygonStrokePrimitive2D
         {
         private:
+            /// wave definition
             double                                  mfWaveWidth;
             double                                  mfWaveHeight;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             PolygonWavePrimitive2D(
                 const basegfx::B2DPolygon& rPolygon,
                 const attribute::LineAttribute& rLineAttribute,
@@ -194,23 +243,24 @@ namespace drawinglayer
                 double fWaveWidth,
                 double fWaveHeight);
 
+            /// constructor without stroking
             PolygonWavePrimitive2D(
                 const basegfx::B2DPolygon& rPolygon,
                 const attribute::LineAttribute& rLineAttribute,
                 double fWaveWidth,
                 double fWaveHeight);
 
-            // get data
+            /// data read access
             double getWaveWidth() const { return mfWaveWidth; }
             double getWaveHeight() const { return mfWaveHeight; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -223,17 +273,25 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PolygonStrokeArrowPrimitive2D class
+
+            This primitive defines a PolygonStrokePrimitive2D which is extended
+            eventually by start and end definitions which are normally used for
+            arrows.
+         */
         class PolygonStrokeArrowPrimitive2D : public PolygonStrokePrimitive2D
         {
         private:
+            /// geometric definitions for line start and end
             attribute::LineStartEndAttribute                maStart;
             attribute::LineStartEndAttribute                maEnd;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             PolygonStrokeArrowPrimitive2D(
                 const basegfx::B2DPolygon& rPolygon,
                 const attribute::LineAttribute& rLineAttribute,
@@ -241,23 +299,24 @@ namespace drawinglayer
                 const attribute::LineStartEndAttribute& rStart,
                 const attribute::LineStartEndAttribute& rEnd);
 
+            /// constructor without stroking
             PolygonStrokeArrowPrimitive2D(
                 const basegfx::B2DPolygon& rPolygon,
                 const attribute::LineAttribute& rLineAttribute,
                 const attribute::LineStartEndAttribute& rStart,
                 const attribute::LineStartEndAttribute& rEnd);
 
-            // get data
+            /// data read access
             const attribute::LineStartEndAttribute& getStart() const { return maStart; }
             const attribute::LineStartEndAttribute& getEnd() const { return maEnd; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/polypolygonprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/polypolygonprimitive2d.hxx
index 0a288cd2ac65..8c0512402120 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/polypolygonprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/polypolygonprimitive2d.hxx
@@ -51,30 +51,40 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PolyPolygonHairlinePrimitive2D class
+
+            This primitive defines a multi-PolygonHairlinePrimitive2D and is
+            just for convenience. The definition is not different from the single
+            defined PolygonHairlinePrimitive2Ds.
+         */
         class PolyPolygonHairlinePrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the hairline geometry
             basegfx::B2DPolyPolygon                 maPolyPolygon;
+
+            /// the hairline color
             basegfx::BColor                         maBColor;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             PolyPolygonHairlinePrimitive2D(const basegfx::B2DPolyPolygon& rPolyPolygon, const basegfx::BColor& rBColor);
 
-            // get data
+            /// data read access
             basegfx::B2DPolyPolygon getB2DPolyPolygon() const { return maPolyPolygon; }
             const basegfx::BColor& getBColor() const { return maBColor; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -87,38 +97,50 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PolyPolygonMarkerPrimitive2D class
+
+            This primitive defines a multi-PolygonMarkerPrimitive2D and is
+            just for convenience. The definition is not different from the single
+            defined PolygonMarkerPrimitive2Ds.
+         */
         class PolyPolygonMarkerPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the marker hairline geometry
             basegfx::B2DPolyPolygon                 maPolyPolygon;
+
+            /// the two colors
             basegfx::BColor                         maRGBColorA;
             basegfx::BColor                         maRGBColorB;
+
+            /// the dash distance in 'pixels'
             double                                  mfDiscreteDashLength;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             PolyPolygonMarkerPrimitive2D(
                 const basegfx::B2DPolyPolygon& rPolyPolygon,
                 const basegfx::BColor& rRGBColorA,
                 const basegfx::BColor& rRGBColorB,
                 double fDiscreteDashLength);
 
-            // get data
+            // data read access
             basegfx::B2DPolyPolygon getB2DPolyPolygon() const { return maPolyPolygon; }
             const basegfx::BColor& getRGBColorA() const { return maRGBColorA; }
             const basegfx::BColor& getRGBColorB() const { return maRGBColorB; }
             double getDiscreteDashLength() const { return mfDiscreteDashLength; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -131,39 +153,52 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PolyPolygonStrokePrimitive2D class
+
+            This primitive defines a multi-PolygonStrokePrimitive2D and is
+            just for convenience. The definition is not different from the single
+            defined PolygonStrokePrimitive2Ds.
+         */
         class PolyPolygonStrokePrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the line geometry
             basegfx::B2DPolyPolygon                 maPolyPolygon;
+
+            /// the line attributes like width, join and color
             attribute::LineAttribute                maLineAttribute;
+
+            /// the line stroking (if used)
             attribute::StrokeAttribute              maStrokeAttribute;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             PolyPolygonStrokePrimitive2D(
                 const basegfx::B2DPolyPolygon& rPolyPolygon,
                 const attribute::LineAttribute& rLineAttribute,
                 const attribute::StrokeAttribute& rStrokeAttribute);
 
+            /// constructor without stroking
             PolyPolygonStrokePrimitive2D(
                 const basegfx::B2DPolyPolygon& rPolyPolygon,
                 const attribute::LineAttribute& rLineAttribute);
 
-            // get data
+            /// data read access
             basegfx::B2DPolyPolygon getB2DPolyPolygon() const { return maPolyPolygon; }
             const attribute::LineAttribute& getLineAttribute() const { return maLineAttribute; }
             const attribute::StrokeAttribute& getStrokeAttribute() const { return maStrokeAttribute; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -176,17 +211,25 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PolyPolygonStrokePrimitive2D class
+
+            This primitive defines a multi-PolygonStrokeArrowPrimitive2D and is
+            just for convenience. The definition is not different from the single
+            defined PolygonStrokeArrowPrimitive2Ds.
+         */
         class PolyPolygonStrokeArrowPrimitive2D : public PolyPolygonStrokePrimitive2D
         {
         private:
+            /// geometric definitions for line start and end
             attribute::LineStartEndAttribute                maStart;
             attribute::LineStartEndAttribute                maEnd;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             PolyPolygonStrokeArrowPrimitive2D(
                 const basegfx::B2DPolyPolygon& rPolyPolygon,
                 const attribute::LineAttribute& rLineAttribute,
@@ -194,23 +237,24 @@ namespace drawinglayer
                 const attribute::LineStartEndAttribute& rStart,
                 const attribute::LineStartEndAttribute& rEnd);
 
+            /// constructor without stroking
             PolyPolygonStrokeArrowPrimitive2D(
                 const basegfx::B2DPolyPolygon& rPolyPolygon,
                 const attribute::LineAttribute& rLineAttribute,
                 const attribute::LineStartEndAttribute& rStart,
                 const attribute::LineStartEndAttribute& rEnd);
 
-            // get data
+            /// data read access
             const attribute::LineStartEndAttribute& getStart() const { return maStart; }
             const attribute::LineStartEndAttribute& getEnd() const { return maEnd; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -223,28 +267,38 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PolyPolygonColorPrimitive2D class
+
+            This primitive defines a PolyPolygon filled with a single color.
+            This is one of the non-decomposable primitives, so a renderer
+            should proccess it.
+         */
         class PolyPolygonColorPrimitive2D : public BasePrimitive2D
         {
         private:
+            /// the PolyPolygon geometry
             basegfx::B2DPolyPolygon                 maPolyPolygon;
+
+            /// the polygon fill color
             basegfx::BColor                         maBColor;
 
         public:
+            /// constructor
             PolyPolygonColorPrimitive2D(
                 const basegfx::B2DPolyPolygon& rPolyPolygon,
                 const basegfx::BColor& rBColor);
 
-            // get data
+            /// data read access
             const basegfx::B2DPolyPolygon& getB2DPolyPolygon() const { return maPolyPolygon; }
             const basegfx::BColor& getBColor() const { return maBColor; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -257,29 +311,39 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PolyPolygonColorPrimitive2D class
+
+            This primitive defines a PolyPolygon filled with a gradient. The
+            decomosition will create a MaskPrimitive2D containing a
+            FillGradientPrimitive2D.
+         */
         class PolyPolygonGradientPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the PolyPolygon geometry
             basegfx::B2DPolyPolygon                     maPolyPolygon;
+
+            /// the gradient definition
             attribute::FillGradientAttribute            maFillGradient;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             PolyPolygonGradientPrimitive2D(
                 const basegfx::B2DPolyPolygon& rPolyPolygon,
                 const attribute::FillGradientAttribute& rFillGradient);
 
-            // get data
+            /// data read access
             const basegfx::B2DPolyPolygon& getB2DPolyPolygon() const { return maPolyPolygon; }
             const attribute::FillGradientAttribute& getFillGradient() const { return maFillGradient; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -292,32 +356,44 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PolyPolygonHatchPrimitive2D class
+
+            This primitive defines a PolyPolygon filled with a hatch. The
+            decomosition will create a MaskPrimitive2D containing a
+            FillHatchPrimitive2D.
+         */
         class PolyPolygonHatchPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the PolyPolygon geometry
             basegfx::B2DPolyPolygon                     maPolyPolygon;
+
+            /// the hatch definition
             attribute::FillHatchAttribute               maFillHatch;
+
+            /// the hatch background color (if used)
             basegfx::BColor                             maBackgroundColor;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             PolyPolygonHatchPrimitive2D(
                 const basegfx::B2DPolyPolygon& rPolyPolygon,
                 const basegfx::BColor& rBackgroundColor,
                 const attribute::FillHatchAttribute& rFillHatch);
 
-            // get data
+            /// data read access
             const basegfx::B2DPolyPolygon& getB2DPolyPolygon() const { return maPolyPolygon; }
             const basegfx::BColor& getBackgroundColor() const { return maBackgroundColor; }
             const attribute::FillHatchAttribute& getFillHatch() const { return maFillHatch; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -330,29 +406,39 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** PolyPolygonBitmapPrimitive2D class
+
+            This primitive defines a PolyPolygon filled with bitmap data
+            (including alpha). The decomosition will create a MaskPrimitive2D
+            containing a FillBitmapPrimitive2D.
+         */
         class PolyPolygonBitmapPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// the PolyPolygon geometry
             basegfx::B2DPolyPolygon                     maPolyPolygon;
+
+            /// the bitmap fill definition (may include tiling)
             attribute::FillBitmapAttribute              maFillBitmap;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             PolyPolygonBitmapPrimitive2D(
                 const basegfx::B2DPolyPolygon& rPolyPolygon,
                 const attribute::FillBitmapAttribute& rFillBitmap);
 
-            // get data
+            /// data read access
             const basegfx::B2DPolyPolygon& getB2DPolyPolygon() const { return maPolyPolygon; }
             const attribute::FillBitmapAttribute& getFillBitmap() const { return maFillBitmap; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/primitivetools2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/primitivetools2d.hxx
index f7e9b1dcac0b..77d56ca8026f 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/primitivetools2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/primitivetools2d.hxx
@@ -39,68 +39,78 @@
 #include <drawinglayer/primitive2d/baseprimitive2d.hxx>
 
 //////////////////////////////////////////////////////////////////////////////
-// tooling class for BufferedDecompositionPrimitive2D baseed classes which are view-dependent
-// regarding the size of a discrete unit. The implementation of get2DDecomposition
-// guards the buffered local decomposition and ensures that a create2DDecomposition
-// implementation may use an up-to-date DiscreteUnit accessible using getDiscreteUnit()
 
 namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** DiscreteMetricDependentPrimitive2D class
+
+            tooling class for BufferedDecompositionPrimitive2D baseed classes which are view-dependent
+            regarding the size of a discrete unit. The implementation of get2DDecomposition
+            guards the buffered local decomposition and ensures that a create2DDecomposition
+            implementation may use an up-to-date DiscreteUnit accessible using getDiscreteUnit()
+         */
         class DiscreteMetricDependentPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
-            // the last used fDiscreteUnit definitions for decomposition. Since this
-            // is checked and updated from get2DDecomposition() it will be current and
-            // usable in create2DDecomposition()
+            /** the last used fDiscreteUnit definitions for decomposition. Since this
+                is checked and updated from get2DDecomposition() it will be current and
+                usable in create2DDecomposition()
+             */
             double                                  mfDiscreteUnit;
 
         public:
+            /// constructor
             DiscreteMetricDependentPrimitive2D()
             :   BufferedDecompositionPrimitive2D(),
                 mfDiscreteUnit(0.0)
             {
             }
 
-            // data access
+            /// data read access
             double getDiscreteUnit() const { return mfDiscreteUnit; }
 
-            // get local decomposition. Overloaded since this decomposition is view-dependent
+            /// get local decomposition. Overloaded since this decomposition is view-dependent
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
         };
     } // end of namespace primitive2d
 } // end of namespace drawinglayer
 
 //////////////////////////////////////////////////////////////////////////////
-// tooling class for BufferedDecompositionPrimitive2D baseed classes which are view-dependent
-// regarding the viewport. The implementation of get2DDecomposition
-// guards the buffered local decomposition and ensures that a create2DDecomposition
-// implementation may use an up-to-date Viewport accessible using getViewport()
 
 namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** ViewportDependentPrimitive2D class
+
+            tooling class for BufferedDecompositionPrimitive2D baseed classes which are view-dependent
+            regarding the viewport. The implementation of get2DDecomposition
+            guards the buffered local decomposition and ensures that a create2DDecomposition
+            implementation may use an up-to-date Viewport accessible using getViewport()
+         */
         class ViewportDependentPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
-            // the last used Viewport definition for decomposition. Since this
-            // is checked and updated from get2DDecomposition() it will be current and
-            // usable in create2DDecomposition()
+            /** the last used Viewport definition for decomposition. Since this
+                is checked and updated from get2DDecomposition() it will be current and
+                usable in create2DDecomposition()
+             */
             basegfx::B2DRange                       maViewport;
 
         public:
+            /// constructor
             ViewportDependentPrimitive2D()
             :   BufferedDecompositionPrimitive2D(),
                 maViewport()
             {
             }
 
-            // data access
+            /// data read access
             const basegfx::B2DRange& getViewport() const { return maViewport; }
 
-            // get local decomposition. Overloaded since this decomposition is view-dependent
+            /// get local decomposition. Overloaded since this decomposition is view-dependent
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/sceneprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/sceneprimitive2d.hxx
index a86e32adca26..65d2bdf67f92 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/sceneprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/sceneprimitive2d.hxx
@@ -49,33 +49,60 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** ScenePrimitive2D class
+
+            This primitive defines a 3D scene as a 2D primitive and is the anchor point
+            for a 3D visualisation. The decomposition is view-dependent and will try to
+            re-use already rendered 3D content.
+
+            The rendering is done using the default-3D renderer from basegfx which supports
+            AntiAliasing.
+
+            The 2D primitive's geometric range is defined completely by the
+            ObjectTransformation combined with evtl. 2D shadows from the 3D objects. The
+            shadows of 3D objects are 2D polygons, projected with the 3D transformation.
+
+            This is the class a renderer may process directly when he wants to implement
+            an own (e.g. system-specific) 3D renderer.
+         */
         class ScenePrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
-            primitive3d::Primitive3DSequence                    mxChildren3D;               // the 3d sub-primitives
-            attribute::SdrSceneAttribute                        maSdrSceneAttribute;        // 3d scene attribute set
-            attribute::SdrLightingAttribute                     maSdrLightingAttribute;     // lighting attribute set
-            basegfx::B2DHomMatrix                               maObjectTransformation;     // object transformation for scene for 2d definition
-            geometry::ViewInformation3D                         maViewInformation3D;        // scene transformation set and object transformation
+            /// the 3D geometry definition
+            primitive3d::Primitive3DSequence                    mxChildren3D;
+
+            /// 3D scene attribute set
+            attribute::SdrSceneAttribute                        maSdrSceneAttribute;
+
+            /// lighting attribute set
+            attribute::SdrLightingAttribute                     maSdrLightingAttribute;
+
+            /// object transformation for scene for 2D definition
+            basegfx::B2DHomMatrix                               maObjectTransformation;
+
+            /// scene transformation set and object transformation
+            geometry::ViewInformation3D                         maViewInformation3D;
 
-            // the primitiveSequence for on-demand created shadow primitives (see mbShadow3DChecked)
+            /// the primitiveSequence for on-demand created shadow primitives (see mbShadow3DChecked)
             Primitive2DSequence                                 maShadowPrimitives;
 
-            // bitfield
-            // flag if given 3D geometry is already cheched for shadow definitions and 2d shadows
-            // are created in maShadowPrimitives
+            /// bitfield
+            /** flag if given 3D geometry is already cheched for shadow definitions and 2d shadows
+                are created in maShadowPrimitives
+             */
             unsigned                                            mbShadow3DChecked : 1;
 
-            // the last used NewDiscreteSize and NewUnitVisiblePart definitions for decomposition
+            /// the last used NewDiscreteSize and NewUnitVisiblePart definitions for decomposition
             double                                              mfOldDiscreteSizeX;
             double                                              mfOldDiscreteSizeY;
             basegfx::B2DRange                                   maOldUnitVisiblePart;
 
-            // the last created BitmapEx, e.g. for fast HitTest. This does not really need
-            // memory since BitmapEx is internally RefCounted
+            /** the last created BitmapEx, e.g. for fast HitTest. This does not really need
+                memory since BitmapEx is internally RefCounted
+             */
             BitmapEx                                            maOldRenderedBitmap;
 
-            // private helpers
+            /// private helpers
             bool impGetShadow3D(const geometry::ViewInformation2D& rViewInformation) const;
             void calculateDiscreteSizes(
                 const geometry::ViewInformation2D& rViewInformation,
@@ -84,28 +111,30 @@ namespace drawinglayer
                 basegfx::B2DRange& rUnitVisibleRange) const;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
-            // public helpers
-            // Geometry extractor. Shadow will be added as in create2DDecomposition, but
-            // the 3D content is not converted to a bitmap visualisation but to projected 2D gemetry. This
-            // helper is useful e.g. for Contour extraction or HitTests.
+            /// public helpers
+            /** Geometry extractor. Shadow will be added as in create2DDecomposition, but
+                the 3D content is not converted to a bitmap visualisation but to projected 2D gemetry. This
+                helper is useful e.g. for Contour extraction or HitTests.
+              */
             Primitive2DSequence getGeometry2D() const;
             Primitive2DSequence getShadow2D(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // Fast HitTest which uses the last buffered BitmapEx from the last
-            // rendered area if available. The return value describes if the check
-            // could be done with the current information, so do NOT use o_rResult
-            // when it returns false. o_rResult will be changed on return true and
-            // then contains a definitive answer if content of this scene is hit or
-            // not. On return false, it is normally necessary to use the geometric
-            // HitTest (see CutFindProcessor usages). The given HitPoint
-            // has to be in logic coordinates in scene's ObjectCoordinateSystem.
+            /** Fast HitTest which uses the last buffered BitmapEx from the last
+                rendered area if available. The return value describes if the check
+                could be done with the current information, so do NOT use o_rResult
+                when it returns false. o_rResult will be changed on return true and
+                then contains a definitive answer if content of this scene is hit or
+                not. On return false, it is normally necessary to use the geometric
+                HitTest (see CutFindProcessor usages). The given HitPoint
+                has to be in logic coordinates in scene's ObjectCoordinateSystem.
+             */
             bool tryToCheckLastVisualisationDirectHit(const basegfx::B2DPoint& rLogicHitPoint, bool& o_rResult) const;
 
-            // constructor/destructor
+            /// constructor
             ScenePrimitive2D(
                 const primitive3d::Primitive3DSequence& rxChildren3D,
                 const attribute::SdrSceneAttribute& rSdrSceneAttribute,
@@ -113,23 +142,23 @@ namespace drawinglayer
                 const basegfx::B2DHomMatrix& rObjectTransformation,
                 const geometry::ViewInformation3D& rViewInformation3D);
 
-            // get data
+            /// data ead access
             const primitive3d::Primitive3DSequence& getChildren3D() const { return mxChildren3D; }
             const attribute::SdrSceneAttribute& getSdrSceneAttribute() const { return maSdrSceneAttribute; }
             const attribute::SdrLightingAttribute& getSdrLightingAttribute() const { return maSdrLightingAttribute; }
             const basegfx::B2DHomMatrix& getObjectTransformation() const { return maObjectTransformation; }
             const geometry::ViewInformation3D& getViewInformation3D() const { return maViewInformation3D; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
 
-            // get local decomposition. Overloaded since this decomposition is view-dependent
+            /// get local decomposition. Overloaded since this decomposition is view-dependent
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/shadowprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/shadowprimitive2d.hxx
index 3da621f5f174..0e3f7258441a 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/shadowprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/shadowprimitive2d.hxx
@@ -46,32 +46,50 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** ShadowPrimitive2D class
+
+            This primitive defines a generic shadow geometry construction
+            for 2D objects. It decomposes to a TransformPrimitive2D embedded
+            into a ModifiedColorPrimitive2D.
+
+            It's for primtive usage convenience, so that not everyone has
+            to implement the generic shadow construction by himself.
+
+            The same geometry as sequence of primitives is used as geometry and
+            as shadow. Since these are RefCounted Uno-Api objects, no extra objects
+            are needed for the shadow itself; all the local decompositions of the
+            original geometry can be reused from the renderer for shadow visualisation.
+        */
         class ShadowPrimitive2D : public GroupPrimitive2D
         {
         private:
+            /// the shadow transformation, normally just an offset
             basegfx::B2DHomMatrix                   maShadowTransform;
+
+            /// the shadow color to which all geometry is to be forced
             basegfx::BColor                         maShadowColor;
 
         public:
+            /// constructor
             ShadowPrimitive2D(
                 const basegfx::B2DHomMatrix& rShadowTransform,
                 const basegfx::BColor& rShadowColor,
                 const Primitive2DSequence& rChildren);
 
-            // get data
+            /// data read access
             const basegfx::B2DHomMatrix& getShadowTransform() const { return maShadowTransform; }
             const basegfx::BColor& getShadowColor() const { return maShadowColor; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            //  create decomposition
+            ///  create decomposition
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/structuretagprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/structuretagprimitive2d.hxx
index 9ccb91e7bebd..c86e4c91bb86 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/structuretagprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/structuretagprimitive2d.hxx
@@ -45,30 +45,34 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        // This class is used to provode simple support for adding grouped
-        // pdf writer structured element information like used in sd from
-        // unomodel.cxx where a ViewObjectContactRedirector is used to add
-        // such information for diverse objects.
-        // This primitive encapsulates these and the VCLPdfRenderer uses it
-        // to apply the needed infos directly to the pdf export in a compatible
-        // way.
-        // If a renderer ignores this, it just decomposes to it's child
-        // content.
+        /** StructureTagPrimitive2D class
+
+            This class is used to provode simple support for adding grouped
+            pdf writer structured element information like used in sd from
+            unomodel.cxx where a ViewObjectContactRedirector is used to add
+            such information for diverse objects.
+            This primitive encapsulates these and the VCLPdfRenderer uses it
+            to apply the needed infos directly to the pdf export in a compatible
+            way.
+            If a renderer ignores this, it just decomposes to it's child
+            content.
+         */
         class StructureTagPrimitive2D : public GroupPrimitive2D
         {
         private:
-            // the PDF structure element this grouping represents
+            /// the PDF structure element this grouping represents
             vcl::PDFWriter::StructElement           maStructureElement;
 
         public:
+            /// constructor
             StructureTagPrimitive2D(
                 const vcl::PDFWriter::StructElement& rStructureElement,
                 const Primitive2DSequence& rChildren);
 
-            // data access
+            /// data read access
             const vcl::PDFWriter::StructElement& getStructureElement() const { return maStructureElement; }
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/textdecoratedprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/textdecoratedprimitive2d.hxx
index fb72500fcb38..4f33c8a7d48b 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/textdecoratedprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/textdecoratedprimitive2d.hxx
@@ -55,7 +55,10 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        // This is used for both underline and overline
+        /** FontUnderline definition
+
+            This is used for both underline and overline
+         */
         enum FontUnderline
         {
             FONT_UNDERLINE_NONE,
@@ -78,6 +81,7 @@ namespace drawinglayer
             FONT_UNDERLINE_BOLDWAVE
         };
 
+        /** FontStrikeout definition */
         enum FontStrikeout
         {
             FONT_STRIKEOUT_NONE,
@@ -88,6 +92,7 @@ namespace drawinglayer
             FONT_STRIKEOUT_X
         };
 
+        /** FontEmphasisMark definition */
         enum FontEmphasisMark
         {
             FONT_EMPHASISMARK_NONE,
@@ -97,6 +102,7 @@ namespace drawinglayer
             FONT_EMPHASISMARK_ACCENT
         };
 
+        /** FontRelief definition */
         enum FontRelief
         {
             FONT_RELIEF_NONE,
@@ -104,9 +110,17 @@ namespace drawinglayer
             FONT_RELIEF_ENGRAVED
         };
 
+        /** TextDecoratedPortionPrimitive2D class
+
+            This primitive expands the TextSimplePortionPrimitive2D by common
+            decorations used in the office. It can be decomposed and will create
+            a TextSimplePortionPrimitive2D and all the contained decorations (if used)
+            as geometry.
+         */
         class TextDecoratedPortionPrimitive2D : public TextSimplePortionPrimitive2D
         {
         private:
+            /// decoration definitions
             basegfx::BColor                             maOverlineColor;
             basegfx::BColor                             maTextlineColor;
             FontUnderline                               meFontOverline;
@@ -115,14 +129,14 @@ namespace drawinglayer
             FontEmphasisMark                            meFontEmphasisMark;
             FontRelief                                  meFontRelief;
 
-            // bitfield
+            /// bitfield
             unsigned                                    mbUnderlineAbove : 1;
             unsigned                                    mbWordLineMode : 1;
             unsigned                                    mbEmphasisMarkAbove : 1;
             unsigned                                    mbEmphasisMarkBelow : 1;
             unsigned                                    mbShadow : 1;
 
-            // helper methods
+            /// helper methods
             void impCreateTextLine(
                 std::vector< Primitive2DReference >& rTarget,
                 basegfx::tools::B2DHomMatrixBufferedOnDemandDecompose& rDecTrans,
@@ -150,13 +164,14 @@ namespace drawinglayer
                 basegfx::tools::B2DHomMatrixBufferedOnDemandDecompose& rDecTrans) const;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             TextDecoratedPortionPrimitive2D(
 
-                // TextSimplePortionPrimitive2D parameters
+                /// TextSimplePortionPrimitive2D parameters
                 const basegfx::B2DHomMatrix& rNewTransform,
                 const String& rText,
                 xub_StrLen aTextPosition,
@@ -166,7 +181,7 @@ namespace drawinglayer
                 const ::com::sun::star::lang::Locale& rLocale,
                 const basegfx::BColor& rFontColor,
 
-                // local parameters
+                /// local parameters
                 const basegfx::BColor& rOverlineColor,
                 const basegfx::BColor& rTextlineColor,
                 FontUnderline eFontOverline = FONT_UNDERLINE_NONE,
@@ -180,7 +195,7 @@ namespace drawinglayer
                 FontRelief eFontRelief = FONT_RELIEF_NONE,
                 bool bShadow = false);
 
-            // get data
+            /// data read access
             FontUnderline getFontOverline() const { return meFontOverline; }
             FontUnderline getFontUnderline() const { return meFontUnderline; }
             FontStrikeout getFontStrikeout() const { return meFontStrikeout; }
@@ -188,20 +203,19 @@ namespace drawinglayer
             FontRelief getFontRelief() const { return meFontRelief; }
             basegfx::BColor getOverlineColor() const { return maOverlineColor; }
             basegfx::BColor getTextlineColor() const { return maTextlineColor; }
-
             bool getUnderlineAbove() const { return mbUnderlineAbove; }
             bool getWordLineMode() const { return mbWordLineMode; }
             bool getEmphasisMarkAbove() const { return mbEmphasisMarkAbove; }
             bool getEmphasisMarkBelow() const { return mbEmphasisMarkBelow; }
             bool getShadow() const { return mbShadow; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==( const BasePrimitive2D& rPrimitive ) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/texteffectprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/texteffectprimitive2d.hxx
index 19f910f3444d..77b64d16ea24 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/texteffectprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/texteffectprimitive2d.hxx
@@ -45,6 +45,7 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** TextEffectStyle2D definition */
         enum TextEffectStyle2D
         {
             TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED_DEFAULT,
@@ -54,50 +55,59 @@ namespace drawinglayer
             TEXTEFFECTSTYLE2D_OUTLINE
         };
 
+        /** TextEffectPrimitive2D class
+
+            This primitive embeds text primitives (normally, as can be seen can
+            also be used for any other primitives) which have some TextEffect applied
+            and create the needed geometry and embedding on decomposition.
+        */
         class TextEffectPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
-            // the text content
+            /// the text (or other) content
             Primitive2DSequence                             maTextContent;
 
-            // the style to apply, the direction and the rotation center
+            /// the style to apply, the direction and the rotation center
             const basegfx::B2DPoint                         maRotationCenter;
             double                                          mfDirection;
             TextEffectStyle2D                               meTextEffectStyle2D;
 
-            // the last used object to view transformtion used from getDecomposition
-            // for decide buffering
+            /** the last used object to view transformtion used from getDecomposition
+                for decide buffering
+             */
             basegfx::B2DHomMatrix                           maLastObjectToViewTransformation;
 
         protected:
-            // create local decomposition
+            /// create local decomposition
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// construcor
             TextEffectPrimitive2D(
                 const Primitive2DSequence& rTextContent,
                 const basegfx::B2DPoint& rRotationCenter,
                 double fDirection,
                 TextEffectStyle2D eTextEffectStyle2D);
 
-            // get data
+            /// data read access
             const Primitive2DSequence& getTextContent() const { return maTextContent; }
             const basegfx::B2DPoint& getRotationCenter() const { return maRotationCenter; }
             double getDirection() const { return mfDirection; }
             TextEffectStyle2D getTextEffectStyle2D() const { return meTextEffectStyle2D; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // own get range implementation to solve more effective. Content is by definition displaced
-            // by a fixed discrete unit, thus the contained geometry needs only once be asked for it's
-            // own basegfx::B2DRange
+            /** own get range implementation to solve more effective. Content is by definition displaced
+                by a fixed discrete unit, thus the contained geometry needs only once be asked for it's
+                own basegfx::B2DRange
+             */
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
 
-            // Overload standard getDecomposition call to be view-dependent here
+            /// Overload standard getDecomposition call to be view-dependent here
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/texthierarchyprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/texthierarchyprimitive2d.hxx
index 1160704c0fa3..3f9c02b6e9bd 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/texthierarchyprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/texthierarchyprimitive2d.hxx
@@ -45,17 +45,23 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        // text format hierarchy helper class. It decomposes to it's
-        // content, so all direct renderers may ignore it. If You need
-        // to know more about line hierarchies You may react on it and
-        // also need to take care that the source of data uses it.
+        /** TextHierarchyLinePrimitive2D class
+
+            Text format hierarchy helper class. It decomposes to it's
+            content, so all direct renderers may ignore it. If You need
+            to know more about line hierarchies You may react on it and
+            also need to take care that the source of data uses it.
+
+            This primitive encapsulates text lines.
+         */
         class TextHierarchyLinePrimitive2D : public GroupPrimitive2D
         {
         private:
         public:
+            /// constructor
             TextHierarchyLinePrimitive2D(const Primitive2DSequence& rChildren);
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -67,14 +73,18 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        // see TextHierarchyLinePrimitive2D comment
+        /** TextHierarchyBulletPrimitive2D class
+
+            This primitive encapsulates text bullets.
+         */
         class TextHierarchyBulletPrimitive2D : public GroupPrimitive2D
         {
         private:
         public:
+            /// constructor
             TextHierarchyBulletPrimitive2D(const Primitive2DSequence& rChildren);
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -86,14 +96,18 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        // see TextHierarchyLinePrimitive2D comment
+        /** TextHierarchyParagraphPrimitive2D class
+
+            This primitive encapsulates text paragraphs.
+         */
         class TextHierarchyParagraphPrimitive2D : public GroupPrimitive2D
         {
         private:
         public:
+            /// constructor
             TextHierarchyParagraphPrimitive2D(const Primitive2DSequence& rChildren);
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -105,14 +119,18 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        // see TextHierarchyLinePrimitive2D comment
+        /** TextHierarchyBlockPrimitive2D class
+
+            This primitive encapsulates text blocks.
+         */
         class TextHierarchyBlockPrimitive2D : public GroupPrimitive2D
         {
         private:
         public:
+            /// constructor
             TextHierarchyBlockPrimitive2D(const Primitive2DSequence& rChildren);
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -124,19 +142,28 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        // type enum
+        /** FieldType definition */
         enum FieldType
         {
-            FIELD_TYPE_COMMON,          // unspecified. If more info is needed for a FieldType,
-                                        // create a new type and it's handling
-            FIELD_TYPE_PAGE,            // uses "FIELD_SEQ_BEGIN;PageField" -> special handling
-            FIELD_TYPE_URL              // uses URL as string -> special handling
+            /** unspecified. If more info is needed for a FieldType,
+                create a new type and it's handling
+             */
+            FIELD_TYPE_COMMON,
+
+            /** uses "FIELD_SEQ_BEGIN;PageField" -> special handling */
+            FIELD_TYPE_PAGE,
+
+            /** uses URL as string -> special handling */
+            FIELD_TYPE_URL
         };
 
-        // see TextHierarchyLinePrimitive2D comment.
-        // Also: This type uses a type enum to transport the encapsulated field
-        // type. Also added is a String which is type-dependent. E.g. for URL
-        // fields, it contains the URL.
+        /** TextHierarchyFieldPrimitive2D class
+
+            This primitive encapsulates text fields.
+            Also: This type uses a type enum to transport the encapsulated field
+            type. Also added is a String which is type-dependent. E.g. for URL
+            fields, it contains the URL.
+         */
         class TextHierarchyFieldPrimitive2D : public GroupPrimitive2D
         {
         private:
@@ -144,19 +171,20 @@ namespace drawinglayer
             rtl::OUString                           maString;
 
         public:
+            /// constructor
             TextHierarchyFieldPrimitive2D(
                 const Primitive2DSequence& rChildren,
                 const FieldType& rFieldType,
                 const rtl::OUString& rString);
 
-            // get data
+            /// data read access
             FieldType getType() const { return meType; }
             const rtl::OUString& getString() const { return maString; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
@@ -168,20 +196,24 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        // #i97628#
-        // Primitive to encapsulate text from an active text edit; some
-        // renderers need to suppress this output due to painting the
-        // edited text in e.g. an OutlinerEditView. It's derived from
-        // GroupPrimitive2D, so the implicit decomposition will use the
-        // content. To suppress, this primitive needs to be parsed by
-        // the renderer without taking any action
+        /** TextHierarchyEditPrimitive2D class
+
+            #i97628#
+            Primitive to encapsulate text from an active text edit; some
+            renderers need to suppress this output due to painting the
+            edited text in e.g. an OutlinerEditView. It's derived from
+            GroupPrimitive2D, so the implicit decomposition will use the
+            content. To suppress, this primitive needs to be parsed by
+            the renderer without taking any action.
+         */
         class TextHierarchyEditPrimitive2D : public GroupPrimitive2D
         {
         private:
         public:
+            /// constructor
             TextHierarchyEditPrimitive2D(const Primitive2DSequence& rChildren);
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/textlayoutdevice.hxx b/drawinglayer/inc/drawinglayer/primitive2d/textlayoutdevice.hxx
index df09718a7582..e0e2b6bbc4cb 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/textlayoutdevice.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/textlayoutdevice.hxx
@@ -66,15 +66,24 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** TextLayouterDevice class
+
+            This helper class exists to isolate all accesses to VCL
+            text formatting/handling functionality for primitive implementations.
+            When in the future FontHandling may move to an own library independent
+            from VCL, primitives will be prepared.
+         */
         class TextLayouterDevice
         {
-            // internally used VirtualDevice
+            /// internally used VirtualDevice
             VirtualDevice&                  mrDevice;
 
         public:
+            /// constructor/destructor
             TextLayouterDevice();
             ~TextLayouterDevice();
 
+            /// tooling methods
             void setFont(const Font& rFont);
             void setFontAttributes(
                 const FontAttributes& rFontAttributes,
@@ -116,11 +125,12 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
-        // Create a VCL-Font based on the definitions in FontAttributes
-        // and the given FontScaling. The FontScaling defines the FontHeight
-        // (fFontScaleY) and the FontWidth (fFontScaleX). The combination of
-        // both defines FontStretching, where no stretching happens at
-        // fFontScaleY == fFontScaleX
+        /** Create a VCL-Font based on the definitions in FontAttributes
+            and the given FontScaling. The FontScaling defines the FontHeight
+            (fFontScaleY) and the FontWidth (fFontScaleX). The combination of
+            both defines FontStretching, where no stretching happens at
+            fFontScaleY == fFontScaleX
+         */
         Font getVclFontFromFontAttributes(
             const FontAttributes& rFontAttributes,
             double fFontScaleX,
@@ -128,10 +138,11 @@ namespace drawinglayer
             double fFontRotation,
             const ::com::sun::star::lang::Locale & rLocale);
 
-        // Generate FontAttributes DataSet derived from the given VCL-Font.
-        // The FontScaling with fFontScaleY, fFontScaleX relationship (see
-        // above) will be set in return parameter o_rSize to allow further
-        // processing
+        /** Generate FontAttributes DataSet derived from the given VCL-Font.
+            The FontScaling with fFontScaleY, fFontScaleX relationship (see
+            above) will be set in return parameter o_rSize to allow further
+            processing
+         */
         FontAttributes getFontAttributesFromVclFont(
             basegfx::B2DVector& o_rSize,
             const Font& rFont,
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/textprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/textprimitive2d.hxx
index 25b11d7cbf29..43e06ecc3b53 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/textprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/textprimitive2d.hxx
@@ -60,15 +60,20 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** FontAttributes class
+
+            This attribute class is able to hold all parameters needed/used
+            to completely define the parametrisation of a text portion.
+         */
         class FontAttributes
         {
         private:
-            // core data
+            /// core data
             String                                      maFamilyName;       // Font Family Name
             String                                      maStyleName;        // Font Style Name
             sal_uInt16                                  mnWeight;           // Font weight
 
-            // bitfield
+            /// bitfield
             unsigned                                    mbSymbol : 1;       // Symbol Font Flag
             unsigned                                    mbVertical : 1;     // Vertical Text Flag
             unsigned                                    mbItalic : 1;       // Italic Flag
@@ -78,6 +83,7 @@ namespace drawinglayer
             // TODO: pair kerning and CJK kerning
 
         public:
+            /// constructor
             FontAttributes(
                 const String& rFamilyName,
                 const String& rStyleName,
@@ -100,10 +106,10 @@ namespace drawinglayer
             {
             }
 
-            // compare operator
+            /// compare operator
             bool operator==(const FontAttributes& rCompare) const;
 
-            // data access
+            /// data read access
             const String& getFamilyName() const { return maFamilyName; }
             const String& getStyleName() const { return maStyleName; }
             sal_uInt16 getWeight() const { return mnWeight; }
@@ -123,26 +129,52 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** TextSimplePortionPrimitive2D class
+
+            This is the basic primitive for representing a text portion. It contains
+            all needed information. If it is not handled by a renderer, it's decomposition
+            will provide the text PolyPolygon outlines as filled polygons, correctly
+            transformed.
+
+            To get better text quality, it is suggested to handle tis primitive directly
+            in a renderer. In that case, e.g. hintings on the system can be supported.
+         */
         class TextSimplePortionPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
-            basegfx::B2DHomMatrix                   maTextTransform;    // text range transformation from unit range ([0.0 .. 1.0]) to text range
-            String                                  maText;             // the text, used from maTextPosition up to maTextPosition + maTextLength
-            xub_StrLen                              maTextPosition;     // the index from where on maText is used
-            xub_StrLen                              maTextLength;       // the length for maText usage, starting from maTextPosition
-            ::std::vector< double >                 maDXArray;          // the DX array scale-independent in unit coordinates
-            FontAttributes                          maFontAttributes;   // the font to use
-            ::com::sun::star::lang::Locale          maLocale;           // the Locale for the text
-            basegfx::BColor                         maFontColor;        // font color
-
-            // #i96669# add simple range buffering for this primitive
+            /// text range transformation from unit range ([0.0 .. 1.0]) to text range
+            basegfx::B2DHomMatrix                   maTextTransform;
+
+            /// The text, used from maTextPosition up to maTextPosition + maTextLength
+            String                                  maText;
+
+            /// The index from where on maText is used
+            xub_StrLen                              maTextPosition;
+
+            /// The length for maText usage, starting from maTextPosition
+            xub_StrLen                              maTextLength;
+
+            /// The DX array scale-independent in unit coordinates
+            ::std::vector< double >                 maDXArray;
+
+            /// The font to use
+            FontAttributes                          maFontAttributes;
+
+            /// The Locale for the text
+            ::com::sun::star::lang::Locale          maLocale;
+
+            /// font color
+            basegfx::BColor                         maFontColor;
+
+            /// #i96669# add simple range buffering for this primitive
             basegfx::B2DRange                       maB2DRange;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             TextSimplePortionPrimitive2D(
                 const basegfx::B2DHomMatrix& rNewTransform,
                 const String& rText,
@@ -153,12 +185,13 @@ namespace drawinglayer
                 const ::com::sun::star::lang::Locale& rLocale,
                 const basegfx::BColor& rFontColor);
 
-            // helpers
-            // get text outlines as polygons and their according ObjectTransformation. Handles all
-            // the necessary VCL outline extractins, scaling adaptions and other stuff.
+            /// helpers
+            /** get text outlines as polygons and their according ObjectTransformation. Handles all
+                the necessary VCL outline extractins, scaling adaptions and other stuff.
+             */
             void getTextOutlinesAndTransformation(basegfx::B2DPolyPolygonVector& rTarget, basegfx::B2DHomMatrix& rTransformation) const;
 
-            // get data
+            /// data read access
             const basegfx::B2DHomMatrix& getTextTransform() const { return maTextTransform; }
             const String& getText() const { return maText; }
             xub_StrLen getTextPosition() const { return maTextPosition; }
@@ -168,13 +201,13 @@ namespace drawinglayer
             const ::com::sun::star::lang::Locale& getLocale() const { return  maLocale; }
             const basegfx::BColor& getFontColor() const { return maFontColor; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==( const BasePrimitive2D& rPrimitive ) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/transformprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/transformprimitive2d.hxx
index 1646667342af..1723cc708ea8 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/transformprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/transformprimitive2d.hxx
@@ -45,26 +45,47 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** TransformPrimitive2D class
+
+            This is one of the basic grouping primitives and it provides
+            embedding a sequence of primitives (a geometry) into a
+            transformation. All renderers have to handle this, usually by
+            building a current transformation stack (linear combination)
+            and applying this to all to-be-rendered geometry. If not handling
+            this, the output will be mostly wrong since this primitive is
+            widely used.
+
+            It does transform by embedding an existing geometry into a
+            transformation as Child-content. This allows re-usage of the
+            refcounted Uno-Api primitives and their existung, buffered
+            decompositions.
+
+            It could e.g. be used to show a single object geometry in 1000
+            different, transformed states without the need to create those
+            thousand primitive contents.
+         */
         class TransformPrimitive2D : public GroupPrimitive2D
         {
         private:
+            // the transformation to apply to the child geometry
             basegfx::B2DHomMatrix                   maTransformation;
 
         public:
+            /// constructor
             TransformPrimitive2D(
                 const basegfx::B2DHomMatrix& rTransformation,
                 const Primitive2DSequence& rChildren);
 
-            // get data
+            /// data read access
             const basegfx::B2DHomMatrix& getTransformation() const { return maTransformation; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/unifiedalphaprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/unifiedalphaprimitive2d.hxx
index d7ca69129e02..6e8970e7bee5 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/unifiedalphaprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/unifiedalphaprimitive2d.hxx
@@ -44,26 +44,37 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** UnifiedAlphaPrimitive2D class
+
+            This primitive encapsualtes a child hierarchy and defines
+            that it shall be visualized with the given transparency. That
+            transparency is unique for all contained geometry, so that
+            e.g. overlapping polygons in the child geometry will not show
+            regions of combined transparency, but be all rendered with the
+            defined, single transparency.
+         */
         class UnifiedAlphaPrimitive2D : public GroupPrimitive2D
         {
         private:
-            double                              mfAlpha; // unified transparence
+            /// the unified alpha transparence
+            double                              mfAlpha;
 
         public:
+            /// constructor
             UnifiedAlphaPrimitive2D(
                 const Primitive2DSequence& rChildren,
                 double fAlpha);
 
-            // get data
+            /// data read access
             double getAlpha() const { return mfAlpha; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            //  create decomposition
+            /// create decomposition
             virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/wrongspellprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/wrongspellprimitive2d.hxx
index 6bf84a401891..3ceae01ed3b2 100644
--- a/drawinglayer/inc/drawinglayer/primitive2d/wrongspellprimitive2d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive2d/wrongspellprimitive2d.hxx
@@ -47,35 +47,53 @@ namespace drawinglayer
 {
     namespace primitive2d
     {
+        /** WrongSpellPrimitive2D class
+
+            This is a helper primitive to hold evtl. WrongSpell visualisations
+            in the sequence of primitives. The primitive holds this information
+            separated form the TextPortions to where it belongs to tot expand the
+            TextSimplePortionPrimitive2D more as needed.
+
+            A renderer who does not want to visualize this (if contained at all)
+            can detect and ignore this primitive. If it's decomposition is used,
+            it will be visualized as red wavelines.
+
+            The geometric definition defines a line on the X-Axis (no Y-coordinates)
+            which will when transformed by Transformation, create the coordinate data.
+         */
         class WrongSpellPrimitive2D : public BufferedDecompositionPrimitive2D
         {
         private:
+            /// geometry definition
             basegfx::B2DHomMatrix                           maTransformation;
             double                                          mfStart;
             double                                          mfStop;
+
+            /// color (usually red)
             basegfx::BColor                                 maColor;
 
         protected:
-            // create local decomposition
+            /// create local decomposition
             virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
 
         public:
+            /// constructor
             WrongSpellPrimitive2D(
                 const basegfx::B2DHomMatrix& rTransformation,
                 double fStart,
                 double fStop,
                 const basegfx::BColor& rColor);
 
-            // get data
+            /// data read access
             const basegfx::B2DHomMatrix& getTransformation() const { return maTransformation; }
             double getStart() const { return mfStart; }
             double getStop() const { return mfStop; }
             const basegfx::BColor& getColor() const { return maColor; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive2DIDBlock()
         };
     } // end of namespace primitive2d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/baseprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/baseprimitive3d.hxx
index 73d28c82ebda..9bf56edb2c53 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/baseprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/baseprimitive3d.hxx
@@ -76,7 +76,9 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
-        /** Baseclass for all C++ implementations of com::sun::star::graphic::XPrimitive2D
+        /** BasePrimitive3D class
+
+            Baseclass for all C++ implementations of com::sun::star::graphic::XPrimitive2D
 
             The description/functionality is identical with the 2D case in baseprimitive2d.hxx,
             please see there for detailed information.
@@ -85,6 +87,8 @@ namespace drawinglayer
 
             - PolygonHairlinePrimitive3D (for 3D hairlines)
             - PolyPolygonMaterialPrimitive3D (for 3D filled plane polygons)
+
+            That's all for 3D!
          */
         class BasePrimitive3D
         :   private boost::noncopyable,
@@ -144,7 +148,9 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
-        /** Baseclass for all C++ implementations of com::sun::star::graphic::XPrimitive2D
+        /** BufferedDecompositionPrimitive3D class
+
+            Baseclass for all C++ implementations of com::sun::star::graphic::XPrimitive2D
 
             The description/functionality is identical with the 2D case in baseprimitive2d.hxx,
             please see there for detailed information
@@ -191,23 +197,24 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
-        // get B3DRange from a given Primitive3DReference
+        /// get B3DRange from a given Primitive3DReference
         basegfx::B3DRange getB3DRangeFromPrimitive3DReference(const Primitive3DReference& rCandidate, const geometry::ViewInformation3D& aViewInformation);
 
-        // get range3D from a given Primitive3DSequence
+        /// get range3D from a given Primitive3DSequence
         basegfx::B3DRange getB3DRangeFromPrimitive3DSequence(const Primitive3DSequence& rCandidate, const geometry::ViewInformation3D& aViewInformation);
 
-        // compare two Primitive2DReferences for equality, including trying to get implementations (BasePrimitive2D)
-        // and using compare operator
+        /** compare two Primitive2DReferences for equality, including trying to get implementations (BasePrimitive2D)
+            and using compare operator
+         */
         bool arePrimitive3DReferencesEqual(const Primitive3DReference& rA, const Primitive3DReference& rB);
 
-        // compare two Primitive3DReferences for equality, uses arePrimitive3DReferencesEqual internally
+        /// compare two Primitive3DReferences for equality, uses arePrimitive3DReferencesEqual internally
         bool arePrimitive3DSequencesEqual(const Primitive3DSequence& rA, const Primitive3DSequence& rB);
 
-        // concatenate sequence
+        /// concatenate sequence
         void appendPrimitive3DSequenceToPrimitive3DSequence(Primitive3DSequence& rDest, const Primitive3DSequence& rSource);
 
-        // concatenate single Primitive3D
+        /// concatenate single Primitive3D
         void appendPrimitive3DReferenceToPrimitive3DSequence(Primitive3DSequence& rDest, const Primitive3DReference& rSource);
 
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/groupprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/groupprimitive3d.hxx
index 6912ff25b04d..69e406c75d67 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/groupprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/groupprimitive3d.hxx
@@ -44,7 +44,9 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
-        /** Baseclass for all grouping 3D primitives
+        /** GroupPrimitive3D class
+
+            Baseclass for all grouping 3D primitives
 
             The description/functionality is identical with the 2D case in groupprimitive2d.hxx,
             please see there for detailed information.
@@ -64,23 +66,23 @@ namespace drawinglayer
         class GroupPrimitive3D : public BasePrimitive3D
         {
         private:
-            // the children. Declared private since this shall never be changed at all after construction
+            /// the children. Declared private since this shall never be changed at all after construction
             Primitive3DSequence                             maChildren;
 
         public:
-            // constructor
+            /// constructor
             GroupPrimitive3D(const Primitive3DSequence& rChildren);
 
-            // data access
+            /// data read access
             Primitive3DSequence getChildren() const { return maChildren; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==( const BasePrimitive3D& rPrimitive ) const;
 
-            // local decomposition. Implementation will just return children
+            /// local decomposition. Implementation will just return children
             virtual Primitive3DSequence get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/hatchtextureprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/hatchtextureprimitive3d.hxx
index 2e1d7e0b5fe4..2675a1284779 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/hatchtextureprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/hatchtextureprimitive3d.hxx
@@ -44,7 +44,9 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
-        /** HatchTexturePrimitive3D is derived from GroupPrimitive3D, but implements
+        /** HatchTexturePrimitive3D class
+
+            HatchTexturePrimitive3D is derived from GroupPrimitive3D, but implements
             a decomposition which is complicated enough for buffering. Since the group
             primitive has no default buffering, it is necessary here to add a local
             buffering mechanism for the decomposition
@@ -52,7 +54,10 @@ namespace drawinglayer
         class HatchTexturePrimitive3D : public TexturePrimitive3D
         {
         private:
+            /// the hatch definition
             attribute::FillHatchAttribute                   maHatch;
+
+            /// the buffered decomposed hatch
             Primitive3DSequence                             maBuffered3DDecomposition;
 
         protected:
@@ -64,6 +69,7 @@ namespace drawinglayer
             void setBuffered3DDecomposition(const Primitive3DSequence& rNew) { maBuffered3DDecomposition = rNew; }
 
         public:
+            /// constructor
             HatchTexturePrimitive3D(
                 const attribute::FillHatchAttribute& rHatch,
                 const Primitive3DSequence& rChildren,
@@ -71,16 +77,16 @@ namespace drawinglayer
                 bool bModulate,
                 bool bFilter);
 
-            // get data
+            /// data read access
             const attribute::FillHatchAttribute& getHatch() const { return maHatch; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive3DSequence get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/hittestprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/hittestprimitive3d.hxx
index 0c5082699e8d..4779241033b0 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/hittestprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/hittestprimitive3d.hxx
@@ -44,31 +44,37 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
-        // This primitive is used to represent geometry for non-visible objects,
-        // e.g. a 3D cube without fill attributes. To still be able to use
-        // primitives for HitTest functionality, the 3d decompositions produce
-        // an as much as possible simplified fill geometry encapsulated in this
-        // primtive when there is no fill geometry. Currently, the 3d hit test
-        // uses only areas, so maybe in a further enchanced version this will change
-        // to 'if neither filled nor lines' creation criteria. The whole primitive
-        // decomposes to nothing, so no one not knowing it will be influenced. Only
-        // helper processors for hit test (and maybe BoundRect extractors) will
-        // use it and it's children subcontent.
+        /** HitTestPrimitive3D class
+
+            This primitive is used to represent geometry for non-visible objects,
+            e.g. a 3D cube without fill attributes. To still be able to use
+            primitives for HitTest functionality, the 3d decompositions produce
+            an as much as possible simplified fill geometry encapsulated in this
+            primtive when there is no fill geometry. Currently, the 3d hit test
+            uses only areas, so maybe in a further enchanced version this will change
+            to 'if neither filled nor lines' creation criteria. The whole primitive
+            decomposes to nothing, so no one not knowing it will be influenced. Only
+            helper processors for hit test (and maybe BoundRect extractors) will
+            use it and it's children subcontent.
+         */
         class HitTestPrimitive3D : public GroupPrimitive3D
         {
         public:
+            /// constructor
             HitTestPrimitive3D(const Primitive3DSequence& rChildren);
 
-            // despite returning an empty decomposition since it's no visualisation data,
-            // range calculation is intended to use invisible replacement geometry, so
-            // the local implementation will return the children's range
+            /** despite returning an empty decomposition since it's no visualisation data,
+                range calculation is intended to use invisible replacement geometry, so
+                the local implementation will return the children's range
+             */
             virtual basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // local decomposition. Implementation will return empty Primitive3DSequence
-            // since this is no visualisation data
+            /** local decomposition. Implementation will return empty Primitive3DSequence
+                since this is no visualisation data
+             */
             virtual Primitive3DSequence get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/modifiedcolorprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/modifiedcolorprimitive3d.hxx
index 0771e8117fc5..3840bf71a397 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/modifiedcolorprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/modifiedcolorprimitive3d.hxx
@@ -45,23 +45,32 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** ModifiedColorPrimitive3D class
+
+            This primitive is a grouping primitive and allows to define
+            how the colors of it's child content shall be modified for
+            visualisation. Please see the ModifiedColorPrimitive2D
+            description for more info.
+         */
         class ModifiedColorPrimitive3D : public GroupPrimitive3D
         {
         private:
+            /// The ColorModifier to use
             basegfx::BColorModifier                 maColorModifier;
 
         public:
+            /// constructor
             ModifiedColorPrimitive3D(
                 const Primitive3DSequence& rChildren,
                 const basegfx::BColorModifier& rColorModifier);
 
-            // get data
+            /// data read access
             const basegfx::BColorModifier& getColorModifier() const { return maColorModifier; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/polygonprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/polygonprimitive3d.hxx
index 9b97f60d3642..c73850e4f794 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/polygonprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/polygonprimitive3d.hxx
@@ -48,28 +48,40 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** PolygonHairlinePrimitive3D class
+
+            This primitive defines a Hairline in 3D. Since hairlines are view-dependent,
+            this primitive is view-dependent, too.
+
+            This is one of the non-decomposable 3D primitives, so a renderer
+            should proccess it.
+         */
         class PolygonHairlinePrimitive3D : public BasePrimitive3D
         {
         private:
+            /// the hairline geometry
             basegfx::B3DPolygon                     maPolygon;
+
+            /// the hairline color
             basegfx::BColor                         maBColor;
 
         public:
+            /// constructor
             PolygonHairlinePrimitive3D(
                 const basegfx::B3DPolygon& rPolygon,
                 const basegfx::BColor& rBColor);
 
-            // get data
+            /// data read access
             const basegfx::B3DPolygon& getB3DPolygon() const { return maPolygon; }
             const basegfx::BColor& getBColor() const { return maBColor; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
@@ -81,36 +93,49 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** PolygonStrokePrimitive3D class
+
+            This primitive defines a 3D line with line width, line join, line color
+            and stroke attributes. It will be decomposed dependent on the definition
+            to the needed primitives, e.g. filled Tubes for fat lines.
+         */
         class PolygonStrokePrimitive3D : public BufferedDecompositionPrimitive3D
         {
         private:
+            /// the line geometry
             basegfx::B3DPolygon                     maPolygon;
+
+            /// the line attributes like width, join and color
             attribute::LineAttribute                maLineAttribute;
+
+            /// the line stroking (if used)
             attribute::StrokeAttribute              maStrokeAttribute;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive3DSequence create3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
         public:
+            /// constructor
             PolygonStrokePrimitive3D(
                 const basegfx::B3DPolygon& rPolygon,
                 const attribute::LineAttribute& rLineAttribute,
                 const attribute::StrokeAttribute& rStrokeAttribute);
 
+            /// constructor without stroking
             PolygonStrokePrimitive3D(
                 const basegfx::B3DPolygon& rPolygon,
                 const attribute::LineAttribute& rLineAttribute);
 
-            // get data
+            /// data read access
             basegfx::B3DPolygon getB3DPolygon() const { return maPolygon; }
             const attribute::LineAttribute& getLineAttribute() const { return maLineAttribute; }
             const attribute::StrokeAttribute& getStrokeAttribute() const { return maStrokeAttribute; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/polygontubeprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/polygontubeprimitive3d.hxx
index 695d16ec7cf5..f5d45f7c1639 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/polygontubeprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/polygontubeprimitive3d.hxx
@@ -52,13 +52,20 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** PolygonStrokePrimitive3D class
+
+            This 3D primitive extends a 3D hairline to a 3D tube which is
+            e.g. used for fat lines in 3D. It's decomposition will create all
+            3D objects needed for the line tubes and the edge roundings
+            in full 3D.
+         */
         class PolygonTubePrimitive3D : public PolygonHairlinePrimitive3D
         {
         private:
-            // hold the last decompositon since it's expensive
+            /// hold the last decompositon since it's expensive
             Primitive3DSequence                         maLast3DDecomposition;
 
-            // visualisation parameters
+            /// visualisation parameters
             double                                      mfRadius;
             double                                      mfDegreeStepWidth;
             double                                      mfMiterMinimumAngle;
@@ -72,10 +79,11 @@ namespace drawinglayer
             const Primitive3DSequence& getLast3DDecomposition() const { return maLast3DDecomposition; }
             void setLast3DDecomposition(const Primitive3DSequence& rNew) { maLast3DDecomposition = rNew; }
 
-            // local decomposition.
+            /// local decomposition.
             Primitive3DSequence impCreate3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
         public:
+            /// constructor
             PolygonTubePrimitive3D(
                 const basegfx::B3DPolygon& rPolygon,
                 const basegfx::BColor& rBColor,
@@ -83,13 +91,13 @@ namespace drawinglayer
                 double fDegreeStepWidth = 10.0 * F_PI180,
                 double fMiterMinimumAngle = 15.0 * F_PI180);
 
-            // get data
+            /// data read access
             double getRadius() const { return mfRadius; }
             double getDegreeStepWidth() const { return mfDegreeStepWidth; }
             double getMiterMinimumAngle() const { return mfMiterMinimumAngle; }
             basegfx::B2DLineJoin getLineJoin() const { return maLineJoin; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
             /** local decomposition. Use own buffering since we are not derived from
@@ -97,7 +105,7 @@ namespace drawinglayer
              */
             virtual Primitive3DSequence get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/polypolygonprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/polypolygonprimitive3d.hxx
index 1c5b9e400bbb..091e8181e38f 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/polypolygonprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/polypolygonprimitive3d.hxx
@@ -46,33 +46,45 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** PolyPolygonMaterialPrimitive3D class
+
+            This primitive defines a planar 3D PolyPolygon filled with a single color.
+            This is one of the non-decomposable primitives, so a renderer
+            should proccess it.
+
+            It is assumed here that the PolyPolgon is a single plane in 3D.
+         */
         class PolyPolygonMaterialPrimitive3D : public BasePrimitive3D
         {
         private:
+            /// the PolyPolygon geometry
             basegfx::B3DPolyPolygon                     maPolyPolygon;
+
+            /// the fill parameters
             attribute::MaterialAttribute3D              maMaterial;
 
-            // bitfield
+            /// bitfield
             unsigned                                    mbDoubleSided : 1;
 
         public:
+            /// constructor
             PolyPolygonMaterialPrimitive3D(
                 const basegfx::B3DPolyPolygon& rPolyPolygon,
                 const attribute::MaterialAttribute3D& rMaterial,
                 bool bDoubleSided);
 
-            // get data
+            /// data read access
             const basegfx::B3DPolyPolygon& getB3DPolyPolygon() const { return maPolyPolygon; }
             const attribute::MaterialAttribute3D& getMaterial() const { return maMaterial; }
             bool getDoubleSided() const { return mbDoubleSided; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/sdrcubeprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/sdrcubeprimitive3d.hxx
index 42a9ab94f327..b3a57f2677dc 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/sdrcubeprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/sdrcubeprimitive3d.hxx
@@ -44,26 +44,33 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** SdrCubePrimitive3D class
+
+            This 3D primitive expands the SdrPrimitive3D to a 3D cube definition.
+            The cube is implicitely in unit coordinates and the given transformation
+            defines it's geometry in space.
+         */
         class SdrCubePrimitive3D : public SdrPrimitive3D
         {
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive3DSequence create3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
         public:
+            /// constructor
             SdrCubePrimitive3D(
                 const basegfx::B3DHomMatrix& rTransform,
                 const basegfx::B2DVector& rTextureSize,
                 const attribute::SdrLineFillShadowAttribute& rSdrLFSAttribute,
                 const attribute::Sdr3DObjectAttribute& rSdr3DObjectAttribute);
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/sdrdecompositiontools3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/sdrdecompositiontools3d.hxx
index 772e030781fe..5b793a6928f8 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/sdrdecompositiontools3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/sdrdecompositiontools3d.hxx
@@ -42,6 +42,7 @@
 
 //////////////////////////////////////////////////////////////////////////////
 // predefines
+
 namespace basegfx {
     class B3DPolygon;
     class B3DPolyPolygon;
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/sdrextrudelathetools3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/sdrextrudelathetools3d.hxx
index 43ae13d4625f..b80198d127d2 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/sdrextrudelathetools3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/sdrextrudelathetools3d.hxx
@@ -53,7 +53,7 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
-        // Slice3D types
+        /** SliceType3D definition */
         enum SliceType3D
         {
             SLICETYPE3D_REGULAR,        // normal geoemtry Slice3D
@@ -61,7 +61,7 @@ namespace drawinglayer
             SLICETYPE3D_BACKCAP         // back cap
         };
 
-        // class to hold one Slice3D
+        /// class to hold one Slice3D
         class Slice3D
         {
         protected:
@@ -92,10 +92,10 @@ namespace drawinglayer
             SliceType3D getSliceType() const { return maSliceType; }
         };
 
-        // typedef for a group of Slice3Ds
+        /// typedef for a group of Slice3Ds
         typedef ::std::vector< Slice3D > Slice3DVector;
 
-        // helpers for creation
+        /// helpers for creation
         void createLatheSlices(
             Slice3DVector& rSliceVector,
             const basegfx::B2DPolyPolygon& rSource,
@@ -117,7 +117,7 @@ namespace drawinglayer
             bool bCloseFront,
             bool bCloseBack);
 
-        // helpers for geometry extraction
+        /// helpers for geometry extraction
         basegfx::B3DPolyPolygon extractHorizontalLinesFromSlice(const Slice3DVector& rSliceVector, bool bCloseHorLines);
         basegfx::B3DPolyPolygon extractVerticalLinesFromSlice(const Slice3DVector& rSliceVector);
 
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/sdrextrudeprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/sdrextrudeprimitive3d.hxx
index a5975b050797..a810e0f5ec8e 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/sdrextrudeprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/sdrextrudeprimitive3d.hxx
@@ -45,23 +45,34 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** SdrExtrudePrimitive3D class
+
+            This 3D primitive expands the SdrPrimitive3D to a 3D extrude definition.
+            The given 2D PolyPolygon geometry is imagined as lying on the XY-plane in 3D
+            and gets extruded in Z-Direction by Depth.
+
+            Various possibilities e.g. for creating diagonals (edge roudings in 3D)
+            and similar are given.
+
+            The decomposition will create all necessary 3D planes for visualisation.
+         */
         class SdrExtrudePrimitive3D : public SdrPrimitive3D
         {
         private:
-            // geometry helper for slices
+            /// geometry helper for slices
             basegfx::B2DPolyPolygon                     maCorrectedPolyPolygon;
             Slice3DVector                               maSlices;
 
-            // primitive data
+            /// primitive geometry data
             basegfx::B2DPolyPolygon                     maPolyPolygon;
             double                                      mfDepth;
             double                                      mfDiagonal;
             double                                      mfBackScale;
 
-            // decomposition data when ReducedLineGeometry is used, see get3DDecomposition
+            /// decomposition data when ReducedLineGeometry is used, see get3DDecomposition
             geometry::ViewInformation3D*                mpLastRLGViewInformation;
 
-            // bitfield
+            /// bitfield
             unsigned                                    mbSmoothNormals : 1; // Plane self
             unsigned                                    mbSmoothHorizontalNormals : 1; // always
             unsigned                                    mbSmoothLids : 1; // Front/back
@@ -69,17 +80,18 @@ namespace drawinglayer
             unsigned                                    mbCloseFront : 1;
             unsigned                                    mbCloseBack : 1;
 
-            // create slices
+            /// create slices
             void impCreateSlices();
 
-            // get (evtl. create) slices
+            /// get (evtl. create) slices
             const Slice3DVector& getSlices() const;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive3DSequence create3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
         public:
+            /// constructor
             SdrExtrudePrimitive3D(
                 const basegfx::B3DHomMatrix& rTransform,
                 const basegfx::B2DVector& rTextureSize,
@@ -97,7 +109,7 @@ namespace drawinglayer
                 bool bCloseBack);
             virtual ~SdrExtrudePrimitive3D();
 
-            // data access
+            /// data read access
             const basegfx::B2DPolyPolygon& getPolyPolygon() const { return maPolyPolygon; }
             double getDepth() const { return mfDepth; }
             double getDiagonal() const { return mfDiagonal; }
@@ -109,16 +121,16 @@ namespace drawinglayer
             bool getCloseFront() const { return mbCloseFront; }
             bool getCloseBack() const { return mbCloseBack; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // Overloaded to allow for reduced line mode to decide if to buffer decomposition or not
+            /// Overloaded to allow for reduced line mode to decide if to buffer decomposition or not
             virtual Primitive3DSequence get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/sdrlatheprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/sdrlatheprimitive3d.hxx
index 7d80cbde015c..084ce5bce35e 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/sdrlatheprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/sdrlatheprimitive3d.hxx
@@ -45,14 +45,25 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** SdrLathePrimitive3D class
+
+            This 3D primitive expands the SdrPrimitive3D to a 3D rotation definition.
+            The given 2D PolyPolygon geometry is imagined as lying on the XY-plane in 3D
+            and gets rotated around the Y-Axis.
+
+            Various possibilities e.g. for creating diagonals (edge roudings in 3D)
+            and similar are given.
+
+            The decomposition will create all necessary 3D planes for visualisation.
+         */
         class SdrLathePrimitive3D : public SdrPrimitive3D
         {
         private:
-            // geometry helper for slices
+            /// geometry helper for slices
             basegfx::B2DPolyPolygon                     maCorrectedPolyPolygon;
             Slice3DVector                               maSlices;
 
-            // primitive data
+            /// primitive geometry data
             basegfx::B2DPolyPolygon                     maPolyPolygon;
             sal_uInt32                                  mnHorizontalSegments;
             sal_uInt32                                  mnVerticalSegments;
@@ -60,10 +71,10 @@ namespace drawinglayer
             double                                      mfBackScale;
             double                                      mfRotation;
 
-            // decomposition data when ReducedLineGeometry is used, see get3DDecomposition
+            /// decomposition data when ReducedLineGeometry is used, see get3DDecomposition
             geometry::ViewInformation3D*                mpLastRLGViewInformation;
 
-            // bitfield
+            /// bitfield
             unsigned                                    mbSmoothNormals : 1; // Plane self
             unsigned                                    mbSmoothHorizontalNormals : 1; // always
             unsigned                                    mbSmoothLids : 1; // Front/back
@@ -71,14 +82,14 @@ namespace drawinglayer
             unsigned                                    mbCloseFront : 1;
             unsigned                                    mbCloseBack : 1;
 
-            // create slices
+            /// create slices
             void impCreateSlices();
 
-            // get (evtl. create) slices
+            /// get (evtl. create) slices
             const Slice3DVector& getSlices() const;
 
         protected:
-            // local helpers
+            /// local helpers
             void impCreateOutlines(
                 const geometry::ViewInformation3D& rViewInformation,
                 const basegfx::B3DPolygon& rLoopA,
@@ -90,10 +101,11 @@ namespace drawinglayer
                 const basegfx::B2DPoint& rStart,
                 const basegfx::B2DPoint& rEnd) const;
 
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive3DSequence create3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
         public:
+            /// constructor
             SdrLathePrimitive3D(
                 const basegfx::B3DHomMatrix& rTransform,
                 const basegfx::B2DVector& rTextureSize,
@@ -113,7 +125,7 @@ namespace drawinglayer
                 bool bCloseBack);
             virtual ~SdrLathePrimitive3D();
 
-            // data access
+            /// data read access
             const basegfx::B2DPolyPolygon& getPolyPolygon() const { return maPolyPolygon; }
             sal_uInt32 getHorizontalSegments() const { return mnHorizontalSegments; }
             sal_uInt32 getVerticalSegments() const { return mnVerticalSegments; }
@@ -127,16 +139,16 @@ namespace drawinglayer
             bool getCloseFront() const { return mbCloseFront; }
             bool getCloseBack() const { return mbCloseBack; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // Overloaded to allow for reduced line mode to decide if to buffer decomposition or not
+            /// Overloaded to allow for reduced line mode to decide if to buffer decomposition or not
             virtual Primitive3DSequence get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/sdrpolypolygonprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/sdrpolypolygonprimitive3d.hxx
index b0d7cc5c26a2..a6c68bd16da8 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/sdrpolypolygonprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/sdrpolypolygonprimitive3d.hxx
@@ -44,17 +44,28 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** SdrPolyPolygonPrimitive3D class
+
+            This 3D primitive defines a PolyPolgon in space which may have
+            Line- and FillStyles and extra 3D surface attributes. It is assumed
+            that the given 3D PolyPolgon (which may contain texture and normal
+            information) is planar in 3D.
+
+            The decomposition will include all needed 3D data for visualisation,
+            including FatLines and fill styles.
+         */
         class SdrPolyPolygonPrimitive3D : public SdrPrimitive3D
         {
         private:
-            // the polyPolygon evtl with normals and texture coordinates
+            /// the planar polyPolygon evtl with normals and texture coordinates
             basegfx::B3DPolyPolygon                 maPolyPolygon3D;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive3DSequence create3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
         public:
+            /// constructor
             SdrPolyPolygonPrimitive3D(
                 const basegfx::B3DPolyPolygon& rPolyPolygon3D,
                 const basegfx::B3DHomMatrix& rTransform,
@@ -62,16 +73,16 @@ namespace drawinglayer
                 const attribute::SdrLineFillShadowAttribute& rSdrLFSAttribute,
                 const attribute::Sdr3DObjectAttribute& rSdr3DObjectAttribute);
 
-            // data access
+            /// data access
             const basegfx::B3DPolyPolygon& getPolyPolygon3D() const { return maPolyPolygon3D; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/sdrprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/sdrprimitive3d.hxx
index d2296968a000..4dd620848387 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/sdrprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/sdrprimitive3d.hxx
@@ -47,43 +47,49 @@
 
 namespace drawinglayer
 {
-    /** base class for the more complicated geometric primitives, so
+    /** SdrPrimitive3D class
+
+        Base class for the more complicated geometric primitives, so
         derive from buffered primitive to allow overloading of
-        create3DDecomposition there
+        create3DDecomposition there.
      */
     namespace primitive3d
     {
         class SdrPrimitive3D : public BufferedDecompositionPrimitive3D
         {
         private:
+            /// object surface attributes
             basegfx::B3DHomMatrix                       maTransform;
             basegfx::B2DVector                          maTextureSize;
             attribute::SdrLineFillShadowAttribute       maSdrLFSAttribute;
             attribute::Sdr3DObjectAttribute             maSdr3DObjectAttribute;
 
         protected:
-            // Standard implementation for primitive3D which
-            // will use maTransform as range and expand by evtl. line width / 2
+            /** Standard implementation for primitive3D which
+                will use maTransform as range and expand by evtl. line width / 2
+             */
             basegfx::B3DRange getStandard3DRange() const;
 
-            // implementation for primitive3D which
-            // will use given Slice3Ds and expand by evtl. line width / 2
+            /** implementation for primitive3D which
+                will use given Slice3Ds and expand by evtl. line width / 2
+             */
             basegfx::B3DRange get3DRangeFromSlices(const Slice3DVector& rSlices) const;
 
         public:
+            /// constructor
             SdrPrimitive3D(
                 const basegfx::B3DHomMatrix& rTransform,
                 const basegfx::B2DVector& rTextureSize,
                 const attribute::SdrLineFillShadowAttribute& rSdrLFSAttribute,
                 const attribute::Sdr3DObjectAttribute& rSdr3DObjectAttribute);
 
-            // data access
+            /// data read access
             const basegfx::B3DHomMatrix& getTransform() const { return maTransform; }
             const basegfx::B2DVector& getTextureSize() const { return maTextureSize; }
             const attribute::SdrLineFillShadowAttribute& getSdrLFSAttribute() const { return maSdrLFSAttribute; }
             const attribute::Sdr3DObjectAttribute getSdr3DObjectAttribute() const { return maSdr3DObjectAttribute; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/sdrsphereprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/sdrsphereprimitive3d.hxx
index 3e6349df0bb9..52e646e6b4dc 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/sdrsphereprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/sdrsphereprimitive3d.hxx
@@ -44,17 +44,25 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** SdrSpherePrimitive3D class
+
+            This 3D primitive expands the SdrPrimitive3D to a 3D sphere definition.
+            The sphere is implicitely in unit coordinates and the given transformation
+            defines it's geometry in space.
+         */
         class SdrSpherePrimitive3D : public SdrPrimitive3D
         {
         private:
+            /// additional geometry definitions
             sal_uInt32                                  mnHorizontalSegments;
             sal_uInt32                                  mnVerticalSegments;
 
         protected:
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive3DSequence create3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
         public:
+            /// constructor
             SdrSpherePrimitive3D(
                 const basegfx::B3DHomMatrix& rTransform,
                 const basegfx::B2DVector& rTextureSize,
@@ -63,17 +71,17 @@ namespace drawinglayer
                 sal_uInt32 nHorizontalSegments,
                 sal_uInt32 nVerticalSegments);
 
-            // data access
+            /// data read access
             sal_uInt32 getHorizontalSegments() const { return mnHorizontalSegments; }
             sal_uInt32 getVerticalSegments() const { return mnVerticalSegments; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/shadowprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/shadowprimitive3d.hxx
index d511c89a9998..cb8e9cd385d0 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/shadowprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/shadowprimitive3d.hxx
@@ -46,17 +46,29 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** ShadowPrimitive3D class
+
+            This 3D grouping primitive is used to define a shadow for
+            3d geometry by embedding it. The shadow of 3D objects are
+            2D polygons, so the shadow transformation is a 2D transformation.
+
+            If the Shadow3D flag is set, the shadow definition has to be
+            combined with the scene and camera definition to create the correct
+            projected shadow 2D-Polygons.
+         */
         class ShadowPrimitive3D : public GroupPrimitive3D
         {
         protected:
+            /// 2D shadow definition
             basegfx::B2DHomMatrix                   maShadowTransform;
             basegfx::BColor                         maShadowColor;
             double                                  mfShadowTransparence;
 
-            // bitfield
+            /// bitfield
             unsigned                                mbShadow3D : 1;
 
         public:
+            /// constructor
             ShadowPrimitive3D(
                 const basegfx::B2DHomMatrix& rShadowTransform,
                 const basegfx::BColor& rShadowColor,
@@ -64,16 +76,16 @@ namespace drawinglayer
                 bool bShadow3D,
                 const Primitive3DSequence& rChildren);
 
-            // get data
+            /// data read access
             const basegfx::B2DHomMatrix& getShadowTransform() const { return maShadowTransform; }
             const basegfx::BColor& getShadowColor() const { return maShadowColor; }
             double getShadowTransparence() const { return mfShadowTransparence; }
             bool getShadow3D() const { return mbShadow3D; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/textureprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/textureprimitive3d.hxx
index a0c18f34788e..052d42f7290e 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/textureprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/textureprimitive3d.hxx
@@ -47,31 +47,39 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** TexturePrimitive3D class
+
+            This 3D grouping primitive is used to define a texture for
+            3d geometry by embedding it. It is used as bae class for
+            extended texture definitions
+         */
         class TexturePrimitive3D : public GroupPrimitive3D
         {
         private:
+            /// texture geometry definition
             basegfx::B2DVector                          maTextureSize;
 
-            // bitfield
-            // flag if texture shall be modulated with white interpolated color
+            /// bitfield
+            /// flag if texture shall be modulated with white interpolated color
             unsigned                                    mbModulate : 1;
 
-            // flag if texture shall be filtered
+            /// flag if texture shall be filtered
             unsigned                                    mbFilter : 1;
 
         public:
+            /// constructor
             TexturePrimitive3D(
                 const Primitive3DSequence& rChildren,
                 const basegfx::B2DVector& rTextureSize,
                 bool bModulate,
                 bool bFilter);
 
-            // get data
+            /// data read access
             const basegfx::B2DVector& getTextureSize() const { return maTextureSize; }
             bool getModulate() const { return mbModulate; }
             bool getFilter() const { return mbFilter; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
         };
     } // end of namespace primitive3d
@@ -83,26 +91,34 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** UnifiedAlphaTexturePrimitive3D class
+
+            This 3D primitive expands TexturePrimitive3D to a unified
+            alpha (transparence) texture definition. All 3D primitives
+            embedded here will be shown with the given transparency.
+         */
         class UnifiedAlphaTexturePrimitive3D : public TexturePrimitive3D
         {
         private:
+            /// transparency definition
             double                                      mfTransparence;
 
         public:
+            /// constructor
             UnifiedAlphaTexturePrimitive3D(
                 double fTransparence,
                 const Primitive3DSequence& rChildren);
 
-            // get data
+            /// data read access
             double getTransparence() const { return mfTransparence; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // local decomposition.
+            /// local decomposition.
             virtual Primitive3DSequence get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
@@ -114,12 +130,20 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** GradientTexturePrimitive3D class
+
+            This 3D primitive expands TexturePrimitive3D to a gradient texture
+            definition. All 3D primitives embedded here will be shown with the
+            defined gradient.
+         */
         class GradientTexturePrimitive3D : public TexturePrimitive3D
         {
         private:
+            /// the gradient definition
             attribute::FillGradientAttribute        maGradient;
 
         public:
+            /// constructor
             GradientTexturePrimitive3D(
                 const attribute::FillGradientAttribute& rGradient,
                 const Primitive3DSequence& rChildren,
@@ -127,13 +151,13 @@ namespace drawinglayer
                 bool bModulate,
                 bool bFilter);
 
-            // get data
+            /// data read access
             const attribute::FillGradientAttribute& getGradient() const { return maGradient; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
@@ -145,12 +169,20 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** BitmapTexturePrimitive3D class
+
+            This 3D primitive expands TexturePrimitive3D to a bitmap texture
+            definition. All 3D primitives embedded here will be shown with the
+            defined bitmap (maybe tiled if defined).
+         */
         class BitmapTexturePrimitive3D : public TexturePrimitive3D
         {
         private:
+            /// bitmap fill attribute
             attribute::FillBitmapAttribute      maBitmap;
 
         public:
+            /// constructor
             BitmapTexturePrimitive3D(
                 const attribute::FillBitmapAttribute& rBitmap,
                 const Primitive3DSequence& rChildren,
@@ -158,13 +190,13 @@ namespace drawinglayer
                 bool bModulate,
                 bool bFilter);
 
-            // get data
+            /// data read access
             const attribute::FillBitmapAttribute& getBitmap() const { return maBitmap; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
@@ -176,18 +208,26 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** AlphaTexturePrimitive3D class
+
+            This 3D primitive expands TexturePrimitive3D to a alpha texture
+            definition. For alpha definition, a gradient is used. The values in
+            that gradient will be interpreted as luminance Alpha-Values. All 3D
+            primitives embedded here will be shown with the defined transparence.
+         */
         class AlphaTexturePrimitive3D : public GradientTexturePrimitive3D
         {
         public:
+            /// constructor
             AlphaTexturePrimitive3D(
                 const attribute::FillGradientAttribute& rGradient,
                 const Primitive3DSequence& rChildren,
                 const basegfx::B2DVector& rTextureSize);
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d
diff --git a/drawinglayer/inc/drawinglayer/primitive3d/transformprimitive3d.hxx b/drawinglayer/inc/drawinglayer/primitive3d/transformprimitive3d.hxx
index 720f28445dec..bbf2b8444969 100644
--- a/drawinglayer/inc/drawinglayer/primitive3d/transformprimitive3d.hxx
+++ b/drawinglayer/inc/drawinglayer/primitive3d/transformprimitive3d.hxx
@@ -45,26 +45,37 @@ namespace drawinglayer
 {
     namespace primitive3d
     {
+        /** TransformPrimitive3D class
+
+            This is one of the basic grouping 3D primitives and it provides
+            embedding a sequence of primitives (a geometry) into a
+            3D transformation.
+
+            Please see the description for TransformPrimitive2D since these
+            primitives are pretty similar.
+         */
         class TransformPrimitive3D : public GroupPrimitive3D
         {
         private:
+            // the 3D transformation to apply
             basegfx::B3DHomMatrix                   maTransformation;
 
         public:
+            /// constructor
             TransformPrimitive3D(
                 const basegfx::B3DHomMatrix& rTransformation,
                 const Primitive3DSequence& rChildren);
 
-            // get data
+            /// data read access
             const basegfx::B3DHomMatrix& getTransformation() const { return maTransformation; }
 
-            // compare operator
+            /// compare operator
             virtual bool operator==(const BasePrimitive3D& rPrimitive) const;
 
-            // get range
+            /// get range
             virtual basegfx::B3DRange getB3DRange(const geometry::ViewInformation3D& rViewInformation) const;
 
-            // provide unique ID
+            /// provide unique ID
             DeclPrimitrive3DIDBlock()
         };
     } // end of namespace primitive3d