21dbf18064
Change-Id: I95918275653714577e2d6728dd3947c7fbb66d8f Reviewed-on: https://gerrit.libreoffice.org/c/core/+/121360 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
502 lines
24 KiB
C++
502 lines
24 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <sal/config.h>
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#include <cmath>
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#include <drawinglayer/primitive3d/sdrextrudeprimitive3d.hxx>
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <basegfx/polygon/b2dpolygontools.hxx>
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#include <primitive3d/sdrdecompositiontools3d.hxx>
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#include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx>
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#include <drawinglayer/geometry/viewinformation3d.hxx>
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#include <drawinglayer/attribute/sdrfillattribute.hxx>
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#include <drawinglayer/attribute/sdrlineattribute.hxx>
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#include <drawinglayer/attribute/sdrshadowattribute.hxx>
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using namespace com::sun::star;
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namespace drawinglayer::primitive3d
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{
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Primitive3DContainer SdrExtrudePrimitive3D::create3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const
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{
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Primitive3DContainer aRetval;
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// get slices
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const Slice3DVector& rSliceVector = getSlices();
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if(!rSliceVector.empty())
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{
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sal_uInt32 a;
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// decide what to create
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const css::drawing::NormalsKind eNormalsKind(getSdr3DObjectAttribute().getNormalsKind());
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const bool bCreateNormals(css::drawing::NormalsKind_SPECIFIC == eNormalsKind);
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const bool bCreateTextureCoordinatesX(css::drawing::TextureProjectionMode_OBJECTSPECIFIC == getSdr3DObjectAttribute().getTextureProjectionX());
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const bool bCreateTextureCoordinatesY(css::drawing::TextureProjectionMode_OBJECTSPECIFIC == getSdr3DObjectAttribute().getTextureProjectionY());
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basegfx::B2DHomMatrix aTexTransform;
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if(!getSdrLFSAttribute().getFill().isDefault() && (bCreateTextureCoordinatesX || bCreateTextureCoordinatesY))
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{
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const basegfx::B2DPolygon aFirstPolygon(maCorrectedPolyPolygon.getB2DPolygon(0));
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const double fFrontLength(basegfx::utils::getLength(aFirstPolygon));
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const double fFrontArea(basegfx::utils::getArea(aFirstPolygon));
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const double fSqrtFrontArea(sqrt(fFrontArea));
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double fRelativeTextureWidth = basegfx::fTools::equalZero(fSqrtFrontArea) ? 1.0 : fFrontLength / fSqrtFrontArea;
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fRelativeTextureWidth = std::trunc(fRelativeTextureWidth - 0.5);
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if(fRelativeTextureWidth < 1.0)
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{
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fRelativeTextureWidth = 1.0;
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}
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aTexTransform.translate(-0.5, -0.5);
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aTexTransform.scale(-1.0, -1.0);
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aTexTransform.translate(0.5, 0.5);
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aTexTransform.scale(fRelativeTextureWidth, 1.0);
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}
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// create geometry
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std::vector< basegfx::B3DPolyPolygon > aFill;
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extractPlanesFromSlice(aFill, rSliceVector,
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bCreateNormals, getSmoothNormals(), getSmoothLids(), false,
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0.5, 0.6, bCreateTextureCoordinatesX || bCreateTextureCoordinatesY, aTexTransform);
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// get full range
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const basegfx::B3DRange aRange(getRangeFrom3DGeometry(aFill));
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// normal creation
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if(!getSdrLFSAttribute().getFill().isDefault())
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{
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if(css::drawing::NormalsKind_SPHERE == eNormalsKind)
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{
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applyNormalsKindSphereTo3DGeometry(aFill, aRange);
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}
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else if(css::drawing::NormalsKind_FLAT == eNormalsKind)
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{
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applyNormalsKindFlatTo3DGeometry(aFill);
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}
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if(getSdr3DObjectAttribute().getNormalsInvert())
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{
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applyNormalsInvertTo3DGeometry(aFill);
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}
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}
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// texture coordinates
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if(!getSdrLFSAttribute().getFill().isDefault())
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{
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applyTextureTo3DGeometry(
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getSdr3DObjectAttribute().getTextureProjectionX(),
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getSdr3DObjectAttribute().getTextureProjectionY(),
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aFill,
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aRange,
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getTextureSize());
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}
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if(!getSdrLFSAttribute().getFill().isDefault())
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{
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// add fill
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aRetval = create3DPolyPolygonFillPrimitives(
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aFill,
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getTransform(),
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getTextureSize(),
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getSdr3DObjectAttribute(),
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getSdrLFSAttribute().getFill(),
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getSdrLFSAttribute().getFillFloatTransGradient());
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}
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else
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{
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// create simplified 3d hit test geometry
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aRetval = createHiddenGeometryPrimitives3D(
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aFill,
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getTransform(),
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getTextureSize(),
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getSdr3DObjectAttribute());
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}
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// add line
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if(!getSdrLFSAttribute().getLine().isDefault())
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{
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if(getSdr3DObjectAttribute().getReducedLineGeometry())
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{
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// create geometric outlines with reduced line geometry for chart.
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const basegfx::B3DPolyPolygon aVerLine(extractVerticalLinesFromSlice(rSliceVector));
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const sal_uInt32 nCount(aVerLine.count());
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basegfx::B3DPolyPolygon aReducedLoops;
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basegfx::B3DPolyPolygon aNewLineGeometry;
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// sort out doubles (front and back planes when no edge rounding is done). Since
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// this is a line geometry merged from PolyPolygons, loop over all Polygons
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for(a = 0; a < nCount; a++)
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{
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const sal_uInt32 nReducedCount(aReducedLoops.count());
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const basegfx::B3DPolygon& aCandidate(aVerLine.getB3DPolygon(a));
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bool bAdd(true);
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if(nReducedCount)
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{
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for(sal_uInt32 b(0); bAdd && b < nReducedCount; b++)
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{
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if(aCandidate == aReducedLoops.getB3DPolygon(b))
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{
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bAdd = false;
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}
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}
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}
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if(bAdd)
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{
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aReducedLoops.append(aCandidate);
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}
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}
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// from here work with reduced loops and reduced count without changing them
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const sal_uInt32 nReducedCount(aReducedLoops.count());
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if(nReducedCount > 1)
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{
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for(sal_uInt32 b(1); b < nReducedCount; b++)
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{
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// get loop pair
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const basegfx::B3DPolygon& aCandA(aReducedLoops.getB3DPolygon(b - 1));
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const basegfx::B3DPolygon& aCandB(aReducedLoops.getB3DPolygon(b));
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// for each loop pair create the connection edges
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createReducedOutlines(
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rViewInformation,
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getTransform(),
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aCandA,
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aCandB,
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aNewLineGeometry);
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}
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}
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// add reduced loops themselves
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aNewLineGeometry.append(aReducedLoops);
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// to create vertical edges at non-C1/C2 steady loops, use maCorrectedPolyPolygon
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// directly since the 3D Polygons do not support this.
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//
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// Unfortunately there is no bezier polygon provided by the chart module; one reason is
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// that the API for extrude wants a 3D polygon geometry (for historical reasons, i guess)
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// and those have no beziers. Another reason is that he chart module uses self-created
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// stuff to create the 2D geometry (in ShapeFactory::createPieSegment), but this geometry
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// does not contain bezier infos, either. The only way which is possible for now is to 'detect'
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// candidates for vertical edges of pie segments by looking for the angles in the polygon.
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//
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// This is all not very well designed ATM. Ideally, the ReducedLineGeometry is responsible
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// for creating the outer geometry edges (createReducedOutlines), but for special edges
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// like the vertical ones for pie center and both start/end, the incarnation with the
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// knowledge about that it needs to create those and IS a pie segment -> in this case,
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// the chart itself.
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const sal_uInt32 nPolyCount(maCorrectedPolyPolygon.count());
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for(sal_uInt32 c(0); c < nPolyCount; c++)
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{
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const basegfx::B2DPolygon aCandidate(maCorrectedPolyPolygon.getB2DPolygon(c));
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const sal_uInt32 nPointCount(aCandidate.count());
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if(nPointCount > 2)
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{
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sal_uInt32 nIndexA(nPointCount);
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sal_uInt32 nIndexB(nPointCount);
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sal_uInt32 nIndexC(nPointCount);
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for(sal_uInt32 d(0); d < nPointCount; d++)
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{
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const sal_uInt32 nPrevInd((d + nPointCount - 1) % nPointCount);
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const sal_uInt32 nNextInd((d + 1) % nPointCount);
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const basegfx::B2DPoint aPoint(aCandidate.getB2DPoint(d));
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const basegfx::B2DVector aPrev(aCandidate.getB2DPoint(nPrevInd) - aPoint);
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const basegfx::B2DVector aNext(aCandidate.getB2DPoint(nNextInd) - aPoint);
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const double fAngle(aPrev.angle(aNext));
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// take each angle which deviates more than 10% from going straight as
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// special edge. This will detect the two outer edges of pie segments,
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// but not always the center one (think about a near 180 degree pie)
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if(F_PI - fabs(fAngle) > F_PI * 0.1)
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{
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if(nPointCount == nIndexA)
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{
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nIndexA = d;
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}
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else if(nPointCount == nIndexB)
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{
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nIndexB = d;
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}
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else if(nPointCount == nIndexC)
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{
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nIndexC = d;
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d = nPointCount;
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}
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}
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}
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const bool bIndexAUsed(nIndexA != nPointCount);
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const bool bIndexBUsed(nIndexB != nPointCount);
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bool bIndexCUsed(nIndexC != nPointCount);
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if(bIndexCUsed)
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{
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// already three special edges found, so the center one was already detected
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// and does not need to be searched
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}
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else if(bIndexAUsed && bIndexBUsed)
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{
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// outer edges detected (they are approx. 90 degrees), but center one not.
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// Look with the knowledge that it's in-between the two found ones
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if(((nIndexA + 2) % nPointCount) == nIndexB)
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{
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nIndexC = (nIndexA + 1) % nPointCount;
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}
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else if(((nIndexA + nPointCount - 2) % nPointCount) == nIndexB)
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{
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nIndexC = (nIndexA + nPointCount - 1) % nPointCount;
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}
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bIndexCUsed = (nIndexC != nPointCount);
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}
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if(bIndexAUsed)
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{
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const basegfx::B2DPoint aPoint(aCandidate.getB2DPoint(nIndexA));
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const basegfx::B3DPoint aStart(aPoint.getX(), aPoint.getY(), 0.0);
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const basegfx::B3DPoint aEnd(aPoint.getX(), aPoint.getY(), getDepth());
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basegfx::B3DPolygon aToBeAdded;
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aToBeAdded.append(aStart);
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aToBeAdded.append(aEnd);
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aNewLineGeometry.append(aToBeAdded);
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}
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if(bIndexBUsed)
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{
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const basegfx::B2DPoint aPoint(aCandidate.getB2DPoint(nIndexB));
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const basegfx::B3DPoint aStart(aPoint.getX(), aPoint.getY(), 0.0);
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const basegfx::B3DPoint aEnd(aPoint.getX(), aPoint.getY(), getDepth());
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basegfx::B3DPolygon aToBeAdded;
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aToBeAdded.append(aStart);
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aToBeAdded.append(aEnd);
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aNewLineGeometry.append(aToBeAdded);
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}
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if(bIndexCUsed)
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{
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const basegfx::B2DPoint aPoint(aCandidate.getB2DPoint(nIndexC));
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const basegfx::B3DPoint aStart(aPoint.getX(), aPoint.getY(), 0.0);
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const basegfx::B3DPoint aEnd(aPoint.getX(), aPoint.getY(), getDepth());
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basegfx::B3DPolygon aToBeAdded;
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aToBeAdded.append(aStart);
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aToBeAdded.append(aEnd);
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aNewLineGeometry.append(aToBeAdded);
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}
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}
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}
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// append loops themselves
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aNewLineGeometry.append(aReducedLoops);
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if(aNewLineGeometry.count())
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{
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const Primitive3DContainer aLines(create3DPolyPolygonLinePrimitives(
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aNewLineGeometry, getTransform(), getSdrLFSAttribute().getLine()));
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aRetval.append(aLines);
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}
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}
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else
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{
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// extract line geometry from slices
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const basegfx::B3DPolyPolygon aHorLine(extractHorizontalLinesFromSlice(rSliceVector, false));
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const basegfx::B3DPolyPolygon aVerLine(extractVerticalLinesFromSlice(rSliceVector));
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// add horizontal lines
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const Primitive3DContainer aHorLines(create3DPolyPolygonLinePrimitives(
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aHorLine, getTransform(), getSdrLFSAttribute().getLine()));
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aRetval.append(aHorLines);
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// add vertical lines
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const Primitive3DContainer aVerLines(create3DPolyPolygonLinePrimitives(
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aVerLine, getTransform(), getSdrLFSAttribute().getLine()));
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aRetval.append(aVerLines);
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}
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}
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// add shadow
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if(!getSdrLFSAttribute().getShadow().isDefault() && !aRetval.empty())
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{
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const Primitive3DContainer aShadow(createShadowPrimitive3D(
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aRetval, getSdrLFSAttribute().getShadow(), getSdr3DObjectAttribute().getShadow3D()));
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aRetval.append(aShadow);
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}
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}
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return aRetval;
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}
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void SdrExtrudePrimitive3D::impCreateSlices()
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{
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// prepare the polygon. No double points, correct orientations and a correct
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// outmost polygon are needed
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// Also important: subdivide here to ensure equal point count for all slices (!)
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maCorrectedPolyPolygon = basegfx::utils::adaptiveSubdivideByAngle(getPolyPolygon());
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maCorrectedPolyPolygon.removeDoublePoints();
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maCorrectedPolyPolygon = basegfx::utils::correctOrientations(maCorrectedPolyPolygon);
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maCorrectedPolyPolygon = basegfx::utils::correctOutmostPolygon(maCorrectedPolyPolygon);
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// prepare slices as geometry
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createExtrudeSlices(maSlices, maCorrectedPolyPolygon, getBackScale(), getDiagonal(), getDepth(), getCharacterMode(), getCloseFront(), getCloseBack());
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}
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const Slice3DVector& SdrExtrudePrimitive3D::getSlices() const
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{
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// This can be made dependent of getSdrLFSAttribute().getFill() and getSdrLFSAttribute().getLine()
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// again when no longer geometry is needed for non-visible 3D objects as it is now for chart
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if(getPolyPolygon().count() && maSlices.empty())
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{
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::osl::MutexGuard aGuard( m_aMutex );
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const_cast< SdrExtrudePrimitive3D& >(*this).impCreateSlices();
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}
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return maSlices;
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}
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SdrExtrudePrimitive3D::SdrExtrudePrimitive3D(
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const basegfx::B3DHomMatrix& rTransform,
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const basegfx::B2DVector& rTextureSize,
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const attribute::SdrLineFillShadowAttribute3D& rSdrLFSAttribute,
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const attribute::Sdr3DObjectAttribute& rSdr3DObjectAttribute,
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const basegfx::B2DPolyPolygon& rPolyPolygon,
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double fDepth,
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double fDiagonal,
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double fBackScale,
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bool bSmoothNormals,
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bool bSmoothLids,
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bool bCharacterMode,
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bool bCloseFront,
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bool bCloseBack)
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: SdrPrimitive3D(rTransform, rTextureSize, rSdrLFSAttribute, rSdr3DObjectAttribute),
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maPolyPolygon(rPolyPolygon),
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mfDepth(fDepth),
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mfDiagonal(fDiagonal),
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mfBackScale(fBackScale),
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mbSmoothNormals(bSmoothNormals),
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mbSmoothLids(bSmoothLids),
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mbCharacterMode(bCharacterMode),
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mbCloseFront(bCloseFront),
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mbCloseBack(bCloseBack)
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{
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// make sure depth is positive
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if(basegfx::fTools::lessOrEqual(getDepth(), 0.0))
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{
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mfDepth = 0.0;
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}
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// make sure the percentage value getDiagonal() is between 0.0 and 1.0
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if(basegfx::fTools::lessOrEqual(getDiagonal(), 0.0))
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{
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mfDiagonal = 0.0;
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}
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else if(basegfx::fTools::moreOrEqual(getDiagonal(), 1.0))
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{
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mfDiagonal = 1.0;
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}
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// no close front/back when polygon is not closed
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if(getPolyPolygon().count() && !getPolyPolygon().getB2DPolygon(0).isClosed())
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{
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mbCloseFront = mbCloseBack = false;
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}
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// no edge rounding when not closing
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if(!getCloseFront() && !getCloseBack())
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{
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mfDiagonal = 0.0;
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}
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}
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SdrExtrudePrimitive3D::~SdrExtrudePrimitive3D()
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{
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}
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bool SdrExtrudePrimitive3D::operator==(const BasePrimitive3D& rPrimitive) const
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{
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if(SdrPrimitive3D::operator==(rPrimitive))
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{
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const SdrExtrudePrimitive3D& rCompare = static_cast< const SdrExtrudePrimitive3D& >(rPrimitive);
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return (getPolyPolygon() == rCompare.getPolyPolygon()
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&& getDepth() == rCompare.getDepth()
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&& getDiagonal() == rCompare.getDiagonal()
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&& getBackScale() == rCompare.getBackScale()
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&& getSmoothNormals() == rCompare.getSmoothNormals()
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&& getSmoothLids() == rCompare.getSmoothLids()
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&& getCharacterMode() == rCompare.getCharacterMode()
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&& getCloseFront() == rCompare.getCloseFront()
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&& getCloseBack() == rCompare.getCloseBack());
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}
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return false;
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}
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basegfx::B3DRange SdrExtrudePrimitive3D::getB3DRange(const geometry::ViewInformation3D& /*rViewInformation*/) const
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{
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// use default from sdrPrimitive3D which uses transformation expanded by line width/2
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// The parent implementation which uses the ranges of the decomposition would be more
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// correct, but for historical reasons it is necessary to do the old method: To get
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// the range of the non-transformed geometry and transform it then. This leads to different
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// ranges where the new method is more correct, but the need to keep the old behaviour
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// has priority here.
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return get3DRangeFromSlices(getSlices());
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}
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Primitive3DContainer SdrExtrudePrimitive3D::get3DDecomposition(const geometry::ViewInformation3D& rViewInformation) const
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{
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if(getSdr3DObjectAttribute().getReducedLineGeometry())
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|
{
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|
if(!mpLastRLGViewInformation ||
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|
(!getBuffered3DDecomposition().empty()
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&& *mpLastRLGViewInformation != rViewInformation))
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{
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::osl::MutexGuard aGuard( m_aMutex );
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|
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// conditions of last local decomposition with reduced lines have changed. Remember
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// new one and clear current decompositiopn
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SdrExtrudePrimitive3D* pThat = const_cast< SdrExtrudePrimitive3D* >(this);
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pThat->setBuffered3DDecomposition(Primitive3DContainer());
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pThat->mpLastRLGViewInformation = rViewInformation;
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}
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}
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|
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// no test for buffering needed, call parent
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return SdrPrimitive3D::get3DDecomposition(rViewInformation);
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}
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// provide unique ID
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ImplPrimitive3DIDBlock(SdrExtrudePrimitive3D, PRIMITIVE3D_ID_SDREXTRUDEPRIMITIVE3D)
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} // end of namespace
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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