diff options
Diffstat (limited to 'drawinglayer/source/processor3d/cutfindprocessor3d.cxx')
| -rw-r--r-- | drawinglayer/source/processor3d/cutfindprocessor3d.cxx | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/drawinglayer/source/processor3d/cutfindprocessor3d.cxx b/drawinglayer/source/processor3d/cutfindprocessor3d.cxx new file mode 100644 index 000000000000..8d0f63de93de --- /dev/null +++ b/drawinglayer/source/processor3d/cutfindprocessor3d.cxx @@ -0,0 +1,225 @@ +/************************************************************************* + * + * 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. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_drawinglayer.hxx" + +#include <drawinglayer/processor3d/cutfindprocessor3d.hxx> +#include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx> +#include <drawinglayer/primitive3d/transformprimitive3d.hxx> +#include <drawinglayer/primitive3d/hatchtextureprimitive3d.hxx> +#include <drawinglayer/primitive3d/polypolygonprimitive3d.hxx> +#include <basegfx/polygon/b3dpolygon.hxx> +#include <basegfx/polygon/b3dpolygontools.hxx> +#include <basegfx/polygon/b3dpolypolygontools.hxx> +#include <drawinglayer/primitive3d/hiddengeometryprimitive3d.hxx> + +////////////////////////////////////////////////////////////////////////////// + +namespace drawinglayer +{ + namespace processor3d + { + CutFindProcessor::CutFindProcessor(const geometry::ViewInformation3D& rViewInformation, + const basegfx::B3DPoint& rFront, + const basegfx::B3DPoint& rBack, + bool bAnyHit) + : BaseProcessor3D(rViewInformation), + maFront(rFront), + maBack(rBack), + maResult(), + maCombinedTransform(), + mbAnyHit(bAnyHit), + mbUseInvisiblePrimitiveContent(true) + { + } + + void CutFindProcessor::processBasePrimitive3D(const primitive3d::BasePrimitive3D& rCandidate) + { + if(getAnyHit() && maResult.size()) + { + // 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 seqence, + // so force this primitive to process it's 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::Primitive3DSequence& rChildren = rHiddenGeometry.getChildren(); + + if(rChildren.hasElements()) + { + if(getUseInvisiblePrimitiveContent()) + { + process(rChildren); + } + } + + break; + } + case PRIMITIVE3D_ID_UNIFIEDTRANSPARENCETEXTUREPRIMITIVE3D : + { + const primitive3d::UnifiedTransparenceTexturePrimitive3D& rPrimitive = static_cast< const primitive3d::UnifiedTransparenceTexturePrimitive3D& >(rCandidate); + const primitive3d::Primitive3DSequence rChildren = rPrimitive.getChildren(); + + if(rChildren.getLength()) + { + if(1.0 <= rPrimitive.getTransparence()) + { + // not visible, but use for HitTest + if(getUseInvisiblePrimitiveContent()) + { + process(rChildren); + } + } + else if(rPrimitive.getTransparence() >= 0.0 && rPrimitive.getTransparence() < 1.0) + { + // visible; use content + 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::tools::getCutBetweenLineAndPlane(aPlaneNormal, aPointOnPlane, maFront, maBack, fCut)) + { + const basegfx::B3DPoint aCutPoint(basegfx::interpolate(maFront, maBack, fCut)); + + if(basegfx::tools::isInside(rPolyPolygon, aCutPoint, false)) + { + // #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 processor3d +} // end of namespace drawinglayer + +////////////////////////////////////////////////////////////////////////////// +// eof |