diff options
Diffstat (limited to 'svx/source/sdr/contact/viewcontactofsdrpathobj.cxx')
| -rw-r--r-- | svx/source/sdr/contact/viewcontactofsdrpathobj.cxx | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/svx/source/sdr/contact/viewcontactofsdrpathobj.cxx b/svx/source/sdr/contact/viewcontactofsdrpathobj.cxx new file mode 100644 index 000000000..8798d40fb --- /dev/null +++ b/svx/source/sdr/contact/viewcontactofsdrpathobj.cxx @@ -0,0 +1,210 @@ +/* -*- 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 <sdr/contact/viewcontactofsdrpathobj.hxx> +#include <svtools/optionsdrawinglayer.hxx> +#include <svx/svdopath.hxx> +#include <svx/svdpage.hxx> +#include <sdr/primitive2d/sdrattributecreator.hxx> +#include <basegfx/polygon/b2dpolypolygontools.hxx> +#include <basegfx/polygon/b2dpolygonclipper.hxx> +#include <sdr/primitive2d/sdrpathprimitive2d.hxx> +#include <basegfx/matrix/b2dhommatrixtools.hxx> +#include <basegfx/polygon/b2dpolygontools.hxx> +#include <osl/diagnose.h> +#include <unotools/configmgr.hxx> +#include <vcl/canvastools.hxx> + +namespace sdr::contact +{ + ViewContactOfSdrPathObj::ViewContactOfSdrPathObj(SdrPathObj& rPathObj) + : ViewContactOfTextObj(rPathObj) + { + } + + ViewContactOfSdrPathObj::~ViewContactOfSdrPathObj() + { + } + + /// return true if polycount == 1 + static bool ensureGeometry(basegfx::B2DPolyPolygon& rUnitPolyPolygon) + { + sal_uInt32 nPolyCount(rUnitPolyPolygon.count()); + sal_uInt32 nPointCount(0); + + for(auto const& rPolygon : std::as_const(rUnitPolyPolygon)) + { + nPointCount += rPolygon.count(); + if (nPointCount > 1) + return false; + } + + if(!nPointCount) + { + OSL_FAIL("PolyPolygon object without geometry detected, this should not be created (!)"); + basegfx::B2DPolygon aFallbackLine; + aFallbackLine.append(basegfx::B2DPoint(0.0, 0.0)); + aFallbackLine.append(basegfx::B2DPoint(1000.0, 1000.0)); + rUnitPolyPolygon = basegfx::B2DPolyPolygon(aFallbackLine); + + nPolyCount = 1; + } + + return nPolyCount == 1; + } + + void ViewContactOfSdrPathObj::createViewIndependentPrimitive2DSequence(drawinglayer::primitive2d::Primitive2DDecompositionVisitor& rVisitor) const + { + const SfxItemSet& rItemSet = GetPathObj().GetMergedItemSet(); + const drawinglayer::attribute::SdrLineFillEffectsTextAttribute aAttribute( + drawinglayer::primitive2d::createNewSdrLineFillEffectsTextAttribute( + rItemSet, + GetPathObj().getText(0), + false)); + basegfx::B2DPolyPolygon aUnitPolyPolygon(GetPathObj().GetPathPoly()); + bool bPolyCountIsOne(ensureGeometry(aUnitPolyPolygon)); + + // prepare object transformation and unit polygon (direct model data) + basegfx::B2DHomMatrix aObjectMatrix; + basegfx::B2DPolyPolygon aUnitDefinitionPolyPolygon; + bool bIsLine( + !aUnitPolyPolygon.areControlPointsUsed() + && bPolyCountIsOne + && 2 == aUnitPolyPolygon.getB2DPolygon(0).count()); + + if(bIsLine) + { + //tdf#63955 if we have an extremely long line then clip it to a + //very generous range of -1 page width/height vs +1 page + //width/height to avoid oom and massive churn generating a huge + //polygon chain to cover the length in applyLineDashing if this + //line is dashed + const SdrPage* pPage(GetPathObj().getSdrPageFromSdrObject()); + sal_Int32 nPageWidth = pPage ? pPage->GetWidth() : 0; + sal_Int32 nPageHeight = pPage ? pPage->GetHeight() : 0; + + //But, see tdf#101187, only do this if our generous clip region + //would not over flow into a tiny clip region + if (nPageWidth < SAL_MAX_INT32/2 && nPageHeight < SAL_MAX_INT32/2 && !utl::ConfigManager::IsFuzzing()) + { + //But, see tdf#97276, tdf#126184 and tdf#98366. Don't clip too much if the + //underlying page dimension is unknown or a paste document + //where the page sizes use the odd default of 10x10 + const sal_Int32 nMaxPaperWidth = SvtOptionsDrawinglayer::GetMaximumPaperWidth() * 1000; + const sal_Int32 nMaxPaperHeight = SvtOptionsDrawinglayer::GetMaximumPaperHeight() * 1000; + nPageWidth = std::max<sal_Int32>(nPageWidth, nMaxPaperWidth); + nPageHeight = std::max<sal_Int32>(nPageHeight, nMaxPaperHeight); + basegfx::B2DRange aClipRange(-nPageWidth, -nPageHeight, + nPageWidth*2, nPageHeight*2); + + aUnitPolyPolygon = basegfx::utils::clipPolyPolygonOnRange(aUnitPolyPolygon, + aClipRange, true, true); + bPolyCountIsOne = ensureGeometry(aUnitPolyPolygon); + + // re-check that we have't been clipped out to oblivion + bIsLine = + !aUnitPolyPolygon.areControlPointsUsed() + && bPolyCountIsOne + && 2 == aUnitPolyPolygon.getB2DPolygon(0).count(); + } + } + + if(bIsLine) + { + + // special handling for single line mode (2 points) + const basegfx::B2DPolygon aSubPolygon(aUnitPolyPolygon.getB2DPolygon(0)); + const basegfx::B2DPoint aStart(aSubPolygon.getB2DPoint(0)); + const basegfx::B2DPoint aEnd(aSubPolygon.getB2DPoint(1)); + const basegfx::B2DVector aLine(aEnd - aStart); + + // #i102548# create new unit polygon for line (horizontal) + basegfx::B2DPolygon aNewPolygon; + aNewPolygon.append(basegfx::B2DPoint(0.0, 0.0)); + aNewPolygon.append(basegfx::B2DPoint(1.0, 0.0)); + aUnitPolyPolygon.setB2DPolygon(0, aNewPolygon); + + // #i102548# fill objectMatrix with rotation and offset (no shear for lines) + aObjectMatrix = basegfx::utils::createScaleShearXRotateTranslateB2DHomMatrix( + aLine.getLength(), 1.0, + 0.0, + atan2(aLine.getY(), aLine.getX()), + aStart.getX(), aStart.getY()); + } + else + { + // #i102548# create unscaled, unsheared, unrotated and untranslated polygon + // (unit polygon) by creating the object matrix and back-transforming the polygon + const basegfx::B2DRange aObjectRange(basegfx::utils::getRange(aUnitPolyPolygon)); + const GeoStat& rGeoStat(GetPathObj().GetGeoStat()); + const double fWidth(aObjectRange.getWidth()); + const double fHeight(aObjectRange.getHeight()); + const double fScaleX(basegfx::fTools::equalZero(fWidth) ? 1.0 : fWidth); + const double fScaleY(basegfx::fTools::equalZero(fHeight) ? 1.0 : fHeight); + + aObjectMatrix = basegfx::utils::createScaleShearXRotateTranslateB2DHomMatrix( + fScaleX, fScaleY, + -rGeoStat.mfTanShearAngle, + rGeoStat.nRotationAngle ? toRadians(36000_deg100 - rGeoStat.nRotationAngle) : 0.0, + aObjectRange.getMinX(), aObjectRange.getMinY()); + + // create unit polygon from object's absolute path + basegfx::B2DHomMatrix aInverse(aObjectMatrix); + aInverse.invert(); + aUnitPolyPolygon.transform(aInverse); + + // OperationSmiley: Check if a FillGeometryDefiningShape is set + const SdrObject* pFillGeometryDefiningShape(GetPathObj().getFillGeometryDefiningShape()); + + if(nullptr != pFillGeometryDefiningShape) + { + // If yes, get it's BoundRange and use as defining Geometry for the FillStyle. + // If no, aUnitDefinitionPolyPolygon will just be empty and thus be interpreted + // as unused. + // Using SnapRect will make the FillDefinition to always be extended e.g. + // for rotated/sheared objects. + const tools::Rectangle& rSnapRect(pFillGeometryDefiningShape->GetSnapRect()); + + aUnitDefinitionPolyPolygon.append( + basegfx::utils::createPolygonFromRect( + vcl::unotools::b2DRectangleFromRectangle(rSnapRect))); + + // use same coordinate system as the shape geometry -> this + // makes it relative to shape's unit geometry and thus freely + // transformable with the shape + aUnitDefinitionPolyPolygon.transform(aInverse); + } + } + + // create primitive. Always create primitives to allow the decomposition of + // SdrPathPrimitive2D to create needed invisible elements for HitTest and/or BoundRect + const drawinglayer::primitive2d::Primitive2DReference xReference( + new drawinglayer::primitive2d::SdrPathPrimitive2D( + aObjectMatrix, + aAttribute, + aUnitPolyPolygon, + aUnitDefinitionPolyPolygon)); + + rVisitor.visit(xReference); + } + +} // end of namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |