From ae6dbb573e4cd992b1ad92325203c721b3c8e8ab Mon Sep 17 00:00:00 2001 From: Michael Stahl Date: Tue, 5 Jun 2012 15:23:54 +0200 Subject: fdo#49438: heuristic pseudo-hack to use hair-lines if width <= 0.5 pixel Change-Id: I089d0eea5a0d597705405072de285251a91dfbcc Signed-off-by: Miklos Vajna --- .../primitive2d/borderlineprimitive2d.hxx | 34 ++-------- .../primitive2d/clippedborderlineprimitive2d.hxx | 3 +- .../source/primitive2d/borderlineprimitive2d.cxx | 75 +++++++++++++++++----- .../primitive2d/clippedborderlineprimitive2d.cxx | 3 +- 4 files changed, 66 insertions(+), 49 deletions(-) (limited to 'drawinglayer') diff --git a/drawinglayer/inc/drawinglayer/primitive2d/borderlineprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/borderlineprimitive2d.hxx index 6ca9643c60ab..1c9c1a911dbb 100644 --- a/drawinglayer/inc/drawinglayer/primitive2d/borderlineprimitive2d.hxx +++ b/drawinglayer/inc/drawinglayer/primitive2d/borderlineprimitive2d.hxx @@ -83,35 +83,8 @@ namespace drawinglayer unsigned mbCreateOutside : 1; /// local helpers - double getCorrectedLeftWidth() const - { - return mfLeftWidth <= 0.1 ? 0.0 : mfLeftWidth; - } - - double getCorrectedDistance() const - { - return mfDistance <= 0.1 ? 0.0 : mfDistance; - } - - double getCorrectedRightWidth() const - { - return mfRightWidth <= 0.1 ? 0.0 : mfRightWidth; - } - - double getWidth() const - { - return getCorrectedLeftWidth() + getCorrectedDistance() + getCorrectedRightWidth(); - } - - bool leftIsHairline() const - { - return 0 < mfLeftWidth && mfLeftWidth <= 0.1; - } - - bool rightIsHairline() const - { - return 0 < mfRightWidth && mfRightWidth <= 0.1; - } + double getWidth( + const geometry::ViewInformation2D& rViewInformation) const; bool isSolidLine() const { @@ -129,7 +102,8 @@ namespace drawinglayer } protected: - virtual basegfx::B2DPolyPolygon getClipPolygon( ) const; + virtual basegfx::B2DPolyPolygon getClipPolygon( + const geometry::ViewInformation2D& rViewInformation) const; /// create local decomposition virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const; diff --git a/drawinglayer/inc/drawinglayer/primitive2d/clippedborderlineprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/clippedborderlineprimitive2d.hxx index 9c1495b0d582..689f35888d5f 100644 --- a/drawinglayer/inc/drawinglayer/primitive2d/clippedborderlineprimitive2d.hxx +++ b/drawinglayer/inc/drawinglayer/primitive2d/clippedborderlineprimitive2d.hxx @@ -49,7 +49,8 @@ namespace drawinglayer const basegfx::B2DPolygon maIntersection; protected: - virtual basegfx::B2DPolyPolygon getClipPolygon( ) const; + virtual basegfx::B2DPolyPolygon getClipPolygon( + const geometry::ViewInformation2D& rViewInformation) const; public: /// constructor diff --git a/drawinglayer/source/primitive2d/borderlineprimitive2d.cxx b/drawinglayer/source/primitive2d/borderlineprimitive2d.cxx index 86f58d653c49..4591330655e4 100644 --- a/drawinglayer/source/primitive2d/borderlineprimitive2d.cxx +++ b/drawinglayer/source/primitive2d/borderlineprimitive2d.cxx @@ -41,9 +41,45 @@ namespace drawinglayer { + // fdo#49438: heuristic pseudo hack + static bool lcl_UseHairline(double const fW, + basegfx::B2DPoint const& rStart, basegfx::B2DPoint const& rEnd, + geometry::ViewInformation2D const& rViewInformation) + { + basegfx::B2DTuple scale; + basegfx::B2DTuple translation; + double fRotation; + double fShear; + rViewInformation.getObjectToViewTransformation().decompose( + scale, translation, fRotation, fShear); + double const fScale( + (rEnd.getX() - rStart.getX() > rEnd.getY() - rStart.getY()) + ? scale.getY() : scale.getX()); + return (fW * fScale < 0.51); + } + + static double lcl_GetCorrectedWidth(double const fW, + basegfx::B2DPoint const& rStart, basegfx::B2DPoint const& rEnd, + geometry::ViewInformation2D const& rViewInformation) + { + return (lcl_UseHairline(fW, rStart, rEnd, rViewInformation)) ? 0.0 : fW; + } + namespace primitive2d { - basegfx::B2DPolyPolygon BorderLinePrimitive2D::getClipPolygon( ) const + double BorderLinePrimitive2D::getWidth( + geometry::ViewInformation2D const& rViewInformation) const + { + return lcl_GetCorrectedWidth(mfLeftWidth, getStart(), getEnd(), + rViewInformation) + + lcl_GetCorrectedWidth(mfDistance, getStart(), getEnd(), + rViewInformation) + + lcl_GetCorrectedWidth(mfRightWidth, getStart(), getEnd(), + rViewInformation); + } + + basegfx::B2DPolyPolygon BorderLinePrimitive2D::getClipPolygon( + geometry::ViewInformation2D const& rViewInformation) const { basegfx::B2DPolygon clipPolygon; @@ -53,8 +89,8 @@ namespace drawinglayer const basegfx::B2DVector aPerpendicular(basegfx::getPerpendicular(aVector)); // Get the points - const basegfx::B2DVector aLeftOff(aPerpendicular * (-0.5 * (getWidth()))); - const basegfx::B2DVector aRightOff(aPerpendicular * (0.5 * (getWidth()))); + const basegfx::B2DVector aLeftOff(aPerpendicular * (-0.5 * (getWidth(rViewInformation)))); + const basegfx::B2DVector aRightOff(aPerpendicular * (0.5 * (getWidth(rViewInformation)))); const basegfx::B2DVector aSLVector( aLeftOff - ( getExtendLeftStart() * aVector ) ); clipPolygon.append( basegfx::B2DPoint( getStart() + aSLVector * 2.0 ) ); @@ -84,16 +120,17 @@ namespace drawinglayer if(!getStart().equal(getEnd()) && ( isInsideUsed() || isOutsideUsed() ) ) { // get data and vectors - const double fWidth(getWidth()); + const double fWidth(getWidth(rViewInformation)); basegfx::B2DVector aVector(getEnd() - getStart()); aVector.normalize(); const basegfx::B2DVector aPerpendicular(basegfx::getPerpendicular(aVector)); - const basegfx::B2DPolyPolygon& aClipRegion = getClipPolygon( ); + const basegfx::B2DPolyPolygon& aClipRegion = + getClipPolygon(rViewInformation); if(isOutsideUsed() && isInsideUsed()) { - const double fExt = getWidth( ); // Extend a lot: it'll be clipped after + const double fExt = getWidth(rViewInformation); // Extend a lot: it'll be clipped after // both used, double line definition. Create left and right offset xRetval.realloc(2); @@ -103,12 +140,13 @@ namespace drawinglayer { // create geometry for left - const basegfx::B2DVector aLeftOff(aPerpendicular * (0.5 * (getCorrectedLeftWidth() - fWidth + 1))); + const basegfx::B2DVector aLeftOff(aPerpendicular * (0.5 * (lcl_GetCorrectedWidth(mfLeftWidth, getStart(), getEnd(), rViewInformation) - fWidth + 1))); const basegfx::B2DPoint aTmpStart(getStart() + aLeftOff - ( fExt * aVector)); const basegfx::B2DPoint aTmpEnd(getEnd() + aLeftOff + ( fExt * aVector)); basegfx::B2DPolygon aLeft; - if(leftIsHairline()) + if (lcl_UseHairline(mfLeftWidth, getStart(), getEnd(), + rViewInformation)) { // create hairline primitive aLeft.append(aTmpStart); @@ -132,7 +170,7 @@ namespace drawinglayer // with the correct LineWidth, but this leads to problems when no AA // is available and fat line special case reductions between 0.5 < x < 2.5 line widths // are executed due to the FilledPolygon-do-not-paint-their-bottom-and-right-lines. - const basegfx::B2DVector aLineWidthOffset((getCorrectedLeftWidth() * 0.5) * aPerpendicular); + const basegfx::B2DVector aLineWidthOffset((lcl_GetCorrectedWidth(mfLeftWidth, getStart(), getEnd(), rViewInformation) * 0.5) * aPerpendicular); aLeft.append(aTmpStart + aLineWidthOffset); aLeft.append(aTmpEnd + aLineWidthOffset); @@ -153,12 +191,13 @@ namespace drawinglayer { // create geometry for right - const basegfx::B2DVector aRightOff(aPerpendicular * (0.5 * (fWidth - getCorrectedRightWidth() + 1))); + const basegfx::B2DVector aRightOff(aPerpendicular * (0.5 * (fWidth - lcl_GetCorrectedWidth(mfRightWidth, getStart(), getEnd(), rViewInformation) + 1))); const basegfx::B2DPoint aTmpStart(getStart() + aRightOff - ( fExt * aVector)); const basegfx::B2DPoint aTmpEnd(getEnd() + aRightOff + ( fExt * aVector)); basegfx::B2DPolygon aRight; - if(rightIsHairline()) + if (lcl_UseHairline(mfRightWidth, getStart(), getEnd(), + rViewInformation)) { // create hairline primitive aRight.append(aTmpStart); @@ -179,7 +218,7 @@ namespace drawinglayer else { // create filled polygon primitive - const basegfx::B2DVector aLineWidthOffset((getCorrectedRightWidth() * 0.5) * aPerpendicular); + const basegfx::B2DVector aLineWidthOffset((lcl_GetCorrectedWidth(mfRightWidth, getStart(), getEnd(), rViewInformation) * 0.5) * aPerpendicular); aRight.append(aTmpStart + aLineWidthOffset); aRight.append(aTmpEnd + aLineWidthOffset); @@ -215,22 +254,24 @@ namespace drawinglayer { // single line, create geometry basegfx::B2DPolygon aPolygon; - const double fExt = getWidth( ); // Extend a lot: it'll be clipped after + const double fExt = getWidth(rViewInformation); // Extend a lot: it'll be clipped after const basegfx::B2DPoint aTmpStart(getStart() - (fExt * aVector)); const basegfx::B2DPoint aTmpEnd(getEnd() + (fExt * aVector)); xRetval.realloc(1); // Get which is the line to show - bool bIsHairline = leftIsHairline(); bool bIsSolidline = isSolidLine(); - double nWidth = getCorrectedLeftWidth(); + double nWidth = getLeftWidth(); basegfx::BColor aColor = getRGBColorLeft(); if ( basegfx::fTools::equal( 0.0, mfLeftWidth ) ) { - bIsHairline = rightIsHairline(); - nWidth = getCorrectedRightWidth(); + nWidth = getRightWidth(); aColor = getRGBColorRight(); } + bool const bIsHairline = lcl_UseHairline( + nWidth, getStart(), getEnd(), rViewInformation); + nWidth = lcl_GetCorrectedWidth(nWidth, + getStart(), getEnd(), rViewInformation); if(bIsHairline && bIsSolidline) { diff --git a/drawinglayer/source/primitive2d/clippedborderlineprimitive2d.cxx b/drawinglayer/source/primitive2d/clippedborderlineprimitive2d.cxx index 874c61746d48..3b9f82ed0599 100644 --- a/drawinglayer/source/primitive2d/clippedborderlineprimitive2d.cxx +++ b/drawinglayer/source/primitive2d/clippedborderlineprimitive2d.cxx @@ -33,7 +33,8 @@ namespace drawinglayer { namespace primitive2d { - basegfx::B2DPolyPolygon ClippedBorderLinePrimitive2D::getClipPolygon( ) const + basegfx::B2DPolyPolygon ClippedBorderLinePrimitive2D::getClipPolygon( + geometry::ViewInformation2D const&) const { basegfx::B2DPolyPolygon aPolyPolygon; aPolyPolygon.append( maIntersection ); -- cgit v1.2.3