1 files changed, 98 insertions, 0 deletions
diff --git a/slideshow/source/engine/transitions/clippingfunctor.hxx b/slideshow/source/engine/transitions/clippingfunctor.hxx
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+++ b/slideshow/source/engine/transitions/clippingfunctor.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#if ! defined INCLUDED_SLIDESHOW_CLIPPINGFUNCTOR_HXX
+#define INCLUDED_SLIDESHOW_CLIPPINGFUNCTOR_HXX
+
+#include <basegfx/numeric/ftools.hxx>
+#include <basegfx/vector/b2dsize.hxx>
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/polygon/b2dpolypolygontools.hxx>
+#include <transitioninfo.hxx>
+#include <parametricpolypolygon.hxx>
+
+
+namespace slideshow
+{
+    namespace internal
+    {
+        /** Generates the final clipping polygon.
+
+            This class serves as the functor, which generates the
+            final clipping polygon from a given ParametricPolyPolygon
+            and a TransitionInfo.
+
+            The ParametricPolyPolygon can be obtained from the
+            ParametricPolyPolygonFactory, see there.
+
+            The TransitionInfo further parameterizes the polygon
+            generated by the ParametricPolyPolygon, with common
+            modifications such as rotation, flipping, or change of
+            direction. This allows the ParametricPolyPolygonFactory to
+            provide only prototypical shapes, with the ClippingFunctor
+            further customizing the output.
+         */
+        class ClippingFunctor
+        {
+        public:
+            ClippingFunctor(
+                const ParametricPolyPolygonSharedPtr&   rPolygon,
+                const TransitionInfo&                   rTransitionInfo,
+                bool                                    bDirectionForward,
+                bool                                    bModeIn );
+
+            /** Generate clip polygon.
+
+                @param nValue
+                Value to generate the polygon for. Must be in the
+                range [0,1].
+
+                @param rTargetSize
+                Size the clip polygon should cover. This is typically
+                the size of the object the effect is applied on.
+             */
+            ::basegfx::B2DPolyPolygon operator()( double                    nValue,
+                                                  const ::basegfx::B2DSize& rTargetSize );
+
+        private:
+            ParametricPolyPolygonSharedPtr     mpParametricPoly;
+            ::basegfx::B2DHomMatrix            maStaticTransformation;
+            // AW: Not needed
+            // ::basegfx::B2DPolyPolygon          maBackgroundRect;
+            bool                               mbForwardParameterSweep;
+            bool                               mbSubtractPolygon;
+            const bool                         mbScaleIsotrophically;
+            bool                               mbFlip;
+        };
+
+    }
+}
+
+#endif /* INCLUDED_SLIDESHOW_CLIPPINGFUNCTOR_HXX */
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */