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, 146 insertions, 0 deletions

diff --git a/drawinglayer/source/primitive2d/embedded3dprimitive2d.cxx b/drawinglayer/source/primitive2d/embedded3dprimitive2d.cxx
new file mode 100644
index 000000000..f072df0c3
--- /dev/null
+++ b/drawinglayer/source/primitive2d/embedded3dprimitive2d.cxx
@@ -0,0 +1,146 @@
+/* -*- 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/embedded3dprimitive2d.hxx>
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/color/bcolor.hxx>
+#include <drawinglayer/primitive2d/PolygonHairlinePrimitive2D.hxx>
+#include <drawinglayer/geometry/viewinformation2d.hxx>
+#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
+#include <drawinglayer/geometry/viewinformation3d.hxx>
+#include <processor3d/shadow3dextractor.hxx>
+
+
+using namespace com::sun::star;
+
+
+namespace drawinglayer::primitive2d
+{
+        bool Embedded3DPrimitive2D::impGetShadow3D() const
+        {
+            // create on demand
+            if(!mbShadow3DChecked && !getChildren3D().empty())
+            {
+                // create shadow extraction processor
+                processor3d::Shadow3DExtractingProcessor aShadowProcessor(
+                    getViewInformation3D(),
+                    getObjectTransformation(),
+                    getLightNormal(),
+                    getShadowSlant(),
+                    getScene3DRange());
+
+                // process local primitives
+                aShadowProcessor.process(getChildren3D());
+
+                // fetch result and set checked flag
+                const_cast< Embedded3DPrimitive2D* >(this)->maShadowPrimitives = aShadowProcessor.getPrimitive2DSequence();
+                const_cast< Embedded3DPrimitive2D* >(this)->mbShadow3DChecked = true;
+            }
+
+            // return if there are shadow primitives
+            return !maShadowPrimitives.empty();
+        }
+
+        void Embedded3DPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const
+        {
+            // use info to create a yellow 2d rectangle, similar to empty 3d scenes and/or groups
+            const basegfx::B2DRange aLocal2DRange(getB2DRange(rViewInformation));
+            const basegfx::B2DPolygon aOutline(basegfx::utils::createPolygonFromRect(aLocal2DRange));
+            const basegfx::BColor aYellow(1.0, 1.0, 0.0);
+            rContainer.push_back(new PolygonHairlinePrimitive2D(aOutline, aYellow));
+        }
+
+        Embedded3DPrimitive2D::Embedded3DPrimitive2D(
+            const primitive3d::Primitive3DContainer& rxChildren3D,
+            const basegfx::B2DHomMatrix& rObjectTransformation,
+            const geometry::ViewInformation3D& rViewInformation3D,
+            const basegfx::B3DVector& rLightNormal,
+            double fShadowSlant,
+            const basegfx::B3DRange& rScene3DRange)
+        :   mxChildren3D(rxChildren3D),
+            maObjectTransformation(rObjectTransformation),
+            maViewInformation3D(rViewInformation3D),
+            maLightNormal(rLightNormal),
+            mfShadowSlant(fShadowSlant),
+            maScene3DRange(rScene3DRange),
+            mbShadow3DChecked(false)
+        {
+            maLightNormal.normalize();
+        }
+
+        bool Embedded3DPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
+        {
+            if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
+            {
+                const Embedded3DPrimitive2D& rCompare = static_cast< const Embedded3DPrimitive2D& >(rPrimitive);
+
+                return (getChildren3D() == rCompare.getChildren3D()
+                    && getObjectTransformation() == rCompare.getObjectTransformation()
+                    && getViewInformation3D() == rCompare.getViewInformation3D()
+                    && getLightNormal() == rCompare.getLightNormal()
+                    && getShadowSlant() == rCompare.getShadowSlant()
+                    && getScene3DRange() == rCompare.getScene3DRange());
+            }
+
+            return false;
+        }
+
+        basegfx::B2DRange Embedded3DPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
+        {
+            if(maB2DRange.isEmpty())
+            {
+                // use the 3d transformation stack to create a projection of the 3D range
+                basegfx::B3DRange a3DRange(getChildren3D().getB3DRange(getViewInformation3D()));
+                a3DRange.transform(getViewInformation3D().getObjectToView());
+
+                // create 2d range from projected 3d and transform with scene's object transformation
+                basegfx::B2DRange aNewRange;
+                aNewRange.expand(basegfx::B2DPoint(a3DRange.getMinX(), a3DRange.getMinY()));
+                aNewRange.expand(basegfx::B2DPoint(a3DRange.getMaxX(), a3DRange.getMaxY()));
+                aNewRange.transform(getObjectTransformation());
+
+                // check for 3D shadows and their 2D projections. If those exist, they need to be
+                // taken into account
+                if(impGetShadow3D())
+                {
+                    const basegfx::B2DRange aShadow2DRange(maShadowPrimitives.getB2DRange(rViewInformation));
+
+                    if(!aShadow2DRange.isEmpty())
+                    {
+                        aNewRange.expand(aShadow2DRange);
+                    }
+                }
+
+                // assign to buffered value
+                const_cast< Embedded3DPrimitive2D* >(this)->maB2DRange = aNewRange;
+            }
+
+            return maB2DRange;
+        }
+
+        // provide unique ID
+        sal_uInt32 Embedded3DPrimitive2D::getPrimitive2DID() const
+        {
+            return PRIMITIVE2D_ID_EMBEDDED3DPRIMITIVE2D;
+        }
+
+} // end of namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */