Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 186 insertions, 0 deletions

diff --git a/drawinglayer/source/primitive2d/helplineprimitive2d.cxx b/drawinglayer/source/primitive2d/helplineprimitive2d.cxx
new file mode 100644
index 000000000..07d6a7f22
--- /dev/null
+++ b/drawinglayer/source/primitive2d/helplineprimitive2d.cxx
@@ -0,0 +1,186 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <drawinglayer/primitive2d/helplineprimitive2d.hxx>
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <basegfx/polygon/b2dpolygonclipper.hxx>
+#include <drawinglayer/geometry/viewinformation2d.hxx>
+#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
+#include <drawinglayer/primitive2d/PolygonMarkerPrimitive2D.hxx>
+
+
+using namespace com::sun::star;
+
+
+namespace drawinglayer::primitive2d
+{
+        void HelplinePrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const
+        {
+            if(rViewInformation.getViewport().isEmpty() || getDirection().equalZero())
+                return;
+
+            // position to view coordinates, DashLen and DashLen in logic
+            const basegfx::B2DPoint aViewPosition(rViewInformation.getObjectToViewTransformation() * getPosition());
+
+            switch(getStyle())
+            {
+                default : // HelplineStyle2D::Point
+                {
+                    const double fViewFixValue(15.0);
+                    basegfx::B2DVector aNormalizedDirection(getDirection());
+                    aNormalizedDirection.normalize();
+                    aNormalizedDirection *= fViewFixValue;
+                    const basegfx::B2DPoint aStartA(aViewPosition - aNormalizedDirection);
+                    const basegfx::B2DPoint aEndA(aViewPosition + aNormalizedDirection);
+                    basegfx::B2DPolygon aLineA;
+                    aLineA.append(aStartA);
+                    aLineA.append(aEndA);
+                    aLineA.transform(rViewInformation.getInverseObjectToViewTransformation());
+                    rContainer.push_back(new PolygonMarkerPrimitive2D(aLineA, getRGBColA(), getRGBColB(), getDiscreteDashLength()));
+
+                    const basegfx::B2DVector aPerpendicularNormalizedDirection(basegfx::getPerpendicular(aNormalizedDirection));
+                    const basegfx::B2DPoint aStartB(aViewPosition - aPerpendicularNormalizedDirection);
+                    const basegfx::B2DPoint aEndB(aViewPosition + aPerpendicularNormalizedDirection);
+                    basegfx::B2DPolygon aLineB;
+                    aLineB.append(aStartB);
+                    aLineB.append(aEndB);
+                    aLineB.transform(rViewInformation.getInverseObjectToViewTransformation());
+                    rContainer.push_back(new PolygonMarkerPrimitive2D(aLineB, getRGBColA(), getRGBColB(), getDiscreteDashLength()));
+
+                    break;
+                }
+                case HelplineStyle2D::Line :
+                {
+                    basegfx::B2DPolygon aLine;
+
+                    if(basegfx::areParallel(getDirection(), basegfx::B2DVector(1.0, 0.0)))
+                    {
+                        // parallel to X-Axis, get cuts with Y-Axes
+                        const double fCutA((rViewInformation.getDiscreteViewport().getMinX() - aViewPosition.getX()) / getDirection().getX());
+                        const double fCutB((rViewInformation.getDiscreteViewport().getMaxX() - aViewPosition.getX()) / getDirection().getX());
+                        const basegfx::B2DPoint aPosA(aViewPosition + (fCutA * getDirection()));
+                        const basegfx::B2DPoint aPosB(aViewPosition + (fCutB * getDirection()));
+                        const bool bBothLeft(aPosA.getX() < rViewInformation.getDiscreteViewport().getMinX() && aPosB.getX() < rViewInformation.getDiscreteViewport().getMinX());
+                        const bool bBothRight(aPosA.getX() > rViewInformation.getDiscreteViewport().getMaxX() && aPosB.getX() < rViewInformation.getDiscreteViewport().getMaxX());
+
+                        if(!bBothLeft && !bBothRight)
+                        {
+                            aLine.append(aPosA);
+                            aLine.append(aPosB);
+                        }
+                    }
+                    else
+                    {
+                        // get cuts with X-Axes
+                        const double fCutA((rViewInformation.getDiscreteViewport().getMinY() - aViewPosition.getY()) / getDirection().getY());
+                        const double fCutB((rViewInformation.getDiscreteViewport().getMaxY() - aViewPosition.getY()) / getDirection().getY());
+                        const basegfx::B2DPoint aPosA(aViewPosition + (fCutA * getDirection()));
+                        const basegfx::B2DPoint aPosB(aViewPosition + (fCutB * getDirection()));
+                        const bool bBothAbove(aPosA.getY() < rViewInformation.getDiscreteViewport().getMinY() && aPosB.getY() < rViewInformation.getDiscreteViewport().getMinY());
+                        const bool bBothBelow(aPosA.getY() > rViewInformation.getDiscreteViewport().getMaxY() && aPosB.getY() < rViewInformation.getDiscreteViewport().getMaxY());
+
+                        if(!bBothAbove && !bBothBelow)
+                        {
+                            aLine.append(aPosA);
+                            aLine.append(aPosB);
+                        }
+                    }
+
+                    if(aLine.count())
+                    {
+                        // clip against visible area
+                        const basegfx::B2DPolyPolygon aResult(basegfx::utils::clipPolygonOnRange(aLine, rViewInformation.getDiscreteViewport(), true, true));
+
+                        for(sal_uInt32 a(0); a < aResult.count(); a++)
+                        {
+                            basegfx::B2DPolygon aPart(aResult.getB2DPolygon(a));
+                            aPart.transform(rViewInformation.getInverseObjectToViewTransformation());
+                            rContainer.push_back(new PolygonMarkerPrimitive2D(aPart, getRGBColA(), getRGBColB(), getDiscreteDashLength()));
+                        }
+                    }
+
+                    break;
+                }
+            }
+        }
+
+        HelplinePrimitive2D::HelplinePrimitive2D(
+            const basegfx::B2DPoint& rPosition,
+            const basegfx::B2DVector& rDirection,
+            HelplineStyle2D eStyle,
+            const basegfx::BColor& rRGBColA,
+            const basegfx::BColor& rRGBColB,
+            double fDiscreteDashLength)
+        :   maPosition(rPosition),
+            maDirection(rDirection),
+            meStyle(eStyle),
+            maRGBColA(rRGBColA),
+            maRGBColB(rRGBColB),
+            mfDiscreteDashLength(fDiscreteDashLength)
+        {
+        }
+
+        bool HelplinePrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
+        {
+            if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
+            {
+                const HelplinePrimitive2D& rCompare = static_cast<const HelplinePrimitive2D&>(rPrimitive);
+
+                return (getPosition() == rCompare.getPosition()
+                    && getDirection() == rCompare.getDirection()
+                    && getStyle() == rCompare.getStyle()
+                    && getRGBColA() == rCompare.getRGBColA()
+                    && getRGBColB() == rCompare.getRGBColB()
+                    && getDiscreteDashLength() == rCompare.getDiscreteDashLength());
+            }
+
+            return false;
+        }
+
+        void HelplinePrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const
+        {
+            if(!getBuffered2DDecomposition().empty())
+            {
+                if(maLastViewport != rViewInformation.getViewport() || maLastObjectToViewTransformation != rViewInformation.getObjectToViewTransformation())
+                {
+                    // conditions of last local decomposition have changed, delete
+                    const_cast< HelplinePrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DContainer());
+                }
+            }
+
+            if(getBuffered2DDecomposition().empty())
+            {
+                // remember ViewRange and ViewTransformation
+                const_cast< HelplinePrimitive2D* >(this)->maLastObjectToViewTransformation = rViewInformation.getObjectToViewTransformation();
+                const_cast< HelplinePrimitive2D* >(this)->maLastViewport = rViewInformation.getViewport();
+            }
+
+            // use parent implementation
+            BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation);
+        }
+
+        // provide unique ID
+        sal_uInt32 HelplinePrimitive2D::getPrimitive2DID() const
+        {
+            return PRIMITIVE2D_ID_HELPLINEPRIMITIVE2D;
+        }
+
+} // end of namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */