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, 192 insertions, 0 deletions

diff --git a/drawinglayer/source/processor3d/cutfindprocessor3d.cxx b/drawinglayer/source/processor3d/cutfindprocessor3d.cxx
new file mode 100644
index 000000000..cb1f737f5
--- /dev/null
+++ b/drawinglayer/source/processor3d/cutfindprocessor3d.cxx
@@ -0,0 +1,192 @@
+/* -*- 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/processor3d/cutfindprocessor3d.hxx>
+#include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx>
+#include <drawinglayer/primitive3d/transformprimitive3d.hxx>
+#include <primitive3d/hatchtextureprimitive3d.hxx>
+#include <drawinglayer/primitive3d/polypolygonprimitive3d.hxx>
+#include <basegfx/polygon/b3dpolygon.hxx>
+#include <basegfx/polygon/b3dpolygontools.hxx>
+#include <basegfx/polygon/b3dpolypolygontools.hxx>
+#include <primitive3d/hiddengeometryprimitive3d.hxx>
+
+
+namespace drawinglayer::processor3d
+{
+        CutFindProcessor::CutFindProcessor(const geometry::ViewInformation3D& rViewInformation,
+            const basegfx::B3DPoint& rFront,
+            const basegfx::B3DPoint& rBack,
+            bool bAnyHit)
+        :   BaseProcessor3D(rViewInformation),
+            maFront(rFront),
+            maBack(rBack),
+            mbAnyHit(bAnyHit)
+        {
+        }
+
+        void CutFindProcessor::processBasePrimitive3D(const primitive3d::BasePrimitive3D& rCandidate)
+        {
+            if(mbAnyHit && !maResult.empty())
+            {
+                // stop processing as soon as a hit was recognized
+                return;
+            }
+
+            // it is a BasePrimitive3D implementation, use getPrimitive3DID() call for switch
+            switch(rCandidate.getPrimitive3DID())
+            {
+                case PRIMITIVE3D_ID_TRANSFORMPRIMITIVE3D :
+                {
+                    // transform group.
+                    const primitive3d::TransformPrimitive3D& rPrimitive = static_cast< const primitive3d::TransformPrimitive3D& >(rCandidate);
+
+                    // remember old and transform front, back to object coordinates
+                    const basegfx::B3DPoint aLastFront(maFront);
+                    const basegfx::B3DPoint aLastBack(maBack);
+                    basegfx::B3DHomMatrix aInverseTrans(rPrimitive.getTransformation());
+                    aInverseTrans.invert();
+                    maFront *= aInverseTrans;
+                    maBack *= aInverseTrans;
+
+                    // remember current and create new transformation; add new object transform from right side
+                    const geometry::ViewInformation3D aLastViewInformation3D(getViewInformation3D());
+                    const geometry::ViewInformation3D aNewViewInformation3D(
+                        aLastViewInformation3D.getObjectTransformation() * rPrimitive.getTransformation(),
+                        aLastViewInformation3D.getOrientation(),
+                        aLastViewInformation3D.getProjection(),
+                        aLastViewInformation3D.getDeviceToView(),
+                        aLastViewInformation3D.getViewTime(),
+                        aLastViewInformation3D.getExtendedInformationSequence());
+                    updateViewInformation(aNewViewInformation3D);
+
+                    // #i102956# remember needed back-transform for found cuts (combine from right side)
+                    const basegfx::B3DHomMatrix aLastCombinedTransform(maCombinedTransform);
+                    maCombinedTransform = maCombinedTransform * rPrimitive.getTransformation();
+
+                    // let break down
+                    process(rPrimitive.getChildren());
+
+                    // restore transformations and front, back
+                    maCombinedTransform = aLastCombinedTransform;
+                    updateViewInformation(aLastViewInformation3D);
+                    maFront = aLastFront;
+                    maBack = aLastBack;
+                    break;
+                }
+                case PRIMITIVE3D_ID_POLYGONHAIRLINEPRIMITIVE3D :
+                {
+                    // PolygonHairlinePrimitive3D, not used for hit test with planes, ignore. This
+                    // means that also thick line expansion will not be hit-tested as
+                    // PolyPolygonMaterialPrimitive3D
+                    break;
+                }
+                case PRIMITIVE3D_ID_HATCHTEXTUREPRIMITIVE3D :
+                {
+                    // #i97321#
+                    // For HatchTexturePrimitive3D, do not use the decomposition since it will produce
+                    // clipped hatch lines in 3D. It can be used when the hatch also has a filling, but for
+                    // simplicity, just use the children which are the PolyPolygonMaterialPrimitive3D
+                    // which define the hatched areas anyways; for HitTest this is more than adequate
+                    const primitive3d::HatchTexturePrimitive3D& rPrimitive = static_cast< const primitive3d::HatchTexturePrimitive3D& >(rCandidate);
+                    process(rPrimitive.getChildren());
+                    break;
+                }
+                case PRIMITIVE3D_ID_HIDDENGEOMETRYPRIMITIVE3D :
+                {
+                    // HiddenGeometryPrimitive3D; the default decomposition would return an empty sequence,
+                    // so force this primitive to process its children directly if the switch is set
+                    // (which is the default). Else, ignore invisible content
+                    const primitive3d::HiddenGeometryPrimitive3D& rHiddenGeometry(static_cast< const primitive3d::HiddenGeometryPrimitive3D& >(rCandidate));
+                    const primitive3d::Primitive3DContainer& rChildren = rHiddenGeometry.getChildren();
+
+                    if(!rChildren.empty())
+                    {
+                            process(rChildren);
+                    }
+
+                    break;
+                }
+                case PRIMITIVE3D_ID_UNIFIEDTRANSPARENCETEXTUREPRIMITIVE3D :
+                {
+                    const primitive3d::UnifiedTransparenceTexturePrimitive3D& rPrimitive = static_cast< const primitive3d::UnifiedTransparenceTexturePrimitive3D& >(rCandidate);
+                    const primitive3d::Primitive3DContainer& rChildren = rPrimitive.getChildren();
+
+                    if(!rChildren.empty())
+                    {
+                        process(rChildren);
+                    }
+
+                    break;
+                }
+                case PRIMITIVE3D_ID_POLYPOLYGONMATERIALPRIMITIVE3D :
+                {
+                    // PolyPolygonMaterialPrimitive3D
+                    const primitive3d::PolyPolygonMaterialPrimitive3D& rPrimitive = static_cast< const primitive3d::PolyPolygonMaterialPrimitive3D& >(rCandidate);
+
+                    if(!maFront.equal(maBack))
+                    {
+                        const basegfx::B3DPolyPolygon& rPolyPolygon = rPrimitive.getB3DPolyPolygon();
+                        const sal_uInt32 nPolyCount(rPolyPolygon.count());
+
+                        if(nPolyCount)
+                        {
+                            const basegfx::B3DPolygon& aPolygon(rPolyPolygon.getB3DPolygon(0));
+                            const sal_uInt32 nPointCount(aPolygon.count());
+
+                            if(nPointCount > 2)
+                            {
+                                const basegfx::B3DVector aPlaneNormal(aPolygon.getNormal());
+
+                                if(!aPlaneNormal.equalZero())
+                                {
+                                    const basegfx::B3DPoint aPointOnPlane(aPolygon.getB3DPoint(0));
+                                    double fCut(0.0);
+
+                                    if(basegfx::utils::getCutBetweenLineAndPlane(aPlaneNormal, aPointOnPlane, maFront, maBack, fCut))
+                                    {
+                                        const basegfx::B3DPoint aCutPoint(basegfx::interpolate(maFront, maBack, fCut));
+
+                                        if(basegfx::utils::isInside(rPolyPolygon, aCutPoint))
+                                        {
+                                            // #i102956# add result. Do not forget to do this in the coordinate
+                                            // system the processor get started with, so use the collected
+                                            // combined transformation from processed TransformPrimitive3D's
+                                            maResult.push_back(maCombinedTransform * aCutPoint);
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+
+                    break;
+                }
+                default :
+                {
+                    // process recursively
+                    process(rCandidate.get3DDecomposition(getViewInformation3D()));
+                    break;
+                }
+            }
+        }
+
+} // end of namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */