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diff --git a/vcl/source/gdi/gdimetafiletools.cxx b/vcl/source/gdi/gdimetafiletools.cxx
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+/* -*- 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 <vcl/gdimetafiletools.hxx>
+#include <vcl/metaact.hxx>
+#include <vcl/canvastools.hxx>
+#include <basegfx/polygon/b2dpolygonclipper.hxx>
+#include <basegfx/matrix/b2dhommatrixtools.hxx>
+#include <basegfx/polygon/b2dpolypolygontools.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <vcl/virdev.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/graphictools.hxx>
+#include <osl/diagnose.h>
+#include <tools/stream.hxx>
+
+// helpers
+
+namespace
+{
+ bool handleGeometricContent(
+ const basegfx::B2DPolyPolygon& rClip,
+ const basegfx::B2DPolyPolygon& rSource,
+ GDIMetaFile& rTarget,
+ bool bStroke)
+ {
+ if(rSource.count() && rClip.count())
+ {
+ const basegfx::B2DPolyPolygon aResult(
+ basegfx::utils::clipPolyPolygonOnPolyPolygon(
+ rSource,
+ rClip,
+ true, // inside
+ bStroke));
+
+ if(aResult.count())
+ {
+ if(aResult == rSource)
+ {
+ // not clipped, but inside. Add original
+ return false;
+ }
+ else
+ {
+ // add clipped geometry
+ if(bStroke)
+ {
+ for(auto const& rB2DPolygon : aResult)
+ {
+ rTarget.AddAction(
+ new MetaPolyLineAction(
+ tools::Polygon(rB2DPolygon)));
+ }
+ }
+ else
+ {
+ rTarget.AddAction(
+ new MetaPolyPolygonAction(
+ tools::PolyPolygon(aResult)));
+ }
+ }
+ }
+ }
+
+ return true;
+ }
+
+ bool handleGradientContent(
+ const basegfx::B2DPolyPolygon& rClip,
+ const basegfx::B2DPolyPolygon& rSource,
+ const Gradient& rGradient,
+ GDIMetaFile& rTarget)
+ {
+ if(rSource.count() && rClip.count())
+ {
+ const basegfx::B2DPolyPolygon aResult(
+ basegfx::utils::clipPolyPolygonOnPolyPolygon(
+ rSource,
+ rClip,
+ true, // inside
+ false)); // stroke
+
+ if(aResult.count())
+ {
+ if(aResult == rSource)
+ {
+ // not clipped, but inside. Add original
+ return false;
+ }
+ else
+ {
+ // add clipped geometry
+ rTarget.AddAction(
+ new MetaGradientExAction(
+ tools::PolyPolygon(aResult),
+ rGradient));
+ }
+ }
+ }
+
+ return true;
+ }
+
+ bool handleBitmapContent(
+ const basegfx::B2DPolyPolygon& rClip,
+ const Point& rPoint,
+ const Size& rSize,
+ const BitmapEx& rBitmapEx,
+ GDIMetaFile& rTarget)
+ {
+ if(!rSize.Width() || !rSize.Height() || rBitmapEx.IsEmpty())
+ {
+ // bitmap or size is empty
+ return true;
+ }
+
+ const basegfx::B2DRange aLogicBitmapRange(
+ rPoint.X(), rPoint.Y(),
+ rPoint.X() + rSize.Width(), rPoint.Y() + rSize.Height());
+ const basegfx::B2DPolyPolygon aClipOfBitmap(
+ basegfx::utils::clipPolyPolygonOnRange(
+ rClip,
+ aLogicBitmapRange,
+ true,
+ false)); // stroke
+
+ if(!aClipOfBitmap.count())
+ {
+ // outside clip region
+ return true;
+ }
+
+ // inside or overlapping. Use area to find out if it is completely
+ // covering (inside) or overlapping
+ const double fClipArea(basegfx::utils::getArea(aClipOfBitmap));
+ const double fBitmapArea(
+ aLogicBitmapRange.getWidth() * aLogicBitmapRange.getWidth() +
+ aLogicBitmapRange.getHeight() * aLogicBitmapRange.getHeight());
+ const double fFactor(fClipArea / fBitmapArea);
+
+ if(basegfx::fTools::more(fFactor, 1.0 - 0.001))
+ {
+ // completely covering (with 0.1% tolerance)
+ return false;
+ }
+
+ // needs clipping (with 0.1% tolerance). Prepare VirtualDevice
+ // in pixel mode for alpha channel painting (black is transparent,
+ // white to paint 100% opacity)
+ const Size aSizePixel(rBitmapEx.GetSizePixel());
+ ScopedVclPtrInstance< VirtualDevice > aVDev;
+
+ aVDev->SetOutputSizePixel(aSizePixel);
+ aVDev->EnableMapMode(false);
+ aVDev->SetFillColor( COL_WHITE);
+ aVDev->SetLineColor();
+
+ if(rBitmapEx.IsAlpha())
+ {
+ // use given alpha channel
+ aVDev->DrawBitmap(Point(0, 0), rBitmapEx.GetAlpha().GetBitmap());
+ }
+ else
+ {
+ // reset alpha channel
+ aVDev->SetBackground(Wallpaper(COL_BLACK));
+ aVDev->Erase();
+ }
+
+ // transform polygon from clipping to pixel coordinates
+ basegfx::B2DPolyPolygon aPixelPoly(aClipOfBitmap);
+ basegfx::B2DHomMatrix aTransform;
+
+ aTransform.translate(-aLogicBitmapRange.getMinX(), -aLogicBitmapRange.getMinY());
+ aTransform.scale(
+ static_cast< double >(aSizePixel.Width()) / aLogicBitmapRange.getWidth(),
+ static_cast< double >(aSizePixel.Height()) / aLogicBitmapRange.getHeight());
+ aPixelPoly.transform(aTransform);
+
+ // to fill the non-covered parts, use the Xor fill rule of
+ // tools::PolyPolygon painting. Start with an all-covering polygon and
+ // add the clip polygon one
+ basegfx::B2DPolyPolygon aInvertPixelPoly;
+
+ aInvertPixelPoly.append(
+ basegfx::utils::createPolygonFromRect(
+ basegfx::B2DRange(
+ 0.0, 0.0,
+ aSizePixel.Width(), aSizePixel.Height())));
+ aInvertPixelPoly.append(aPixelPoly);
+
+ // paint as alpha
+ aVDev->DrawPolyPolygon(aInvertPixelPoly);
+
+ // get created alpha mask and set defaults
+ AlphaMask aAlpha(
+ aVDev->GetBitmap(
+ Point(0, 0),
+ aSizePixel));
+
+ aAlpha.SetPrefSize(rBitmapEx.GetPrefSize());
+ aAlpha.SetPrefMapMode(rBitmapEx.GetPrefMapMode());
+
+ // add new action replacing the old one
+ rTarget.AddAction(
+ new MetaBmpExScaleAction(
+ Point(
+ basegfx::fround(aLogicBitmapRange.getMinX()),
+ basegfx::fround(aLogicBitmapRange.getMinY())),
+ Size(
+ basegfx::fround(aLogicBitmapRange.getWidth()),
+ basegfx::fround(aLogicBitmapRange.getHeight())),
+ BitmapEx(rBitmapEx.GetBitmap(), aAlpha)));
+
+ return true;
+ }
+
+ void addSvtGraphicStroke(const SvtGraphicStroke& rStroke, GDIMetaFile& rTarget)
+ {
+ // write SvtGraphicFill
+ SvMemoryStream aMemStm;
+ WriteSvtGraphicStroke( aMemStm, rStroke );
+ rTarget.AddAction(
+ new MetaCommentAction(
+ "XPATHSTROKE_SEQ_BEGIN",
+ 0,
+ static_cast< const sal_uInt8* >(aMemStm.GetData()),
+ aMemStm.TellEnd()));
+ }
+
+ void addSvtGraphicFill(const SvtGraphicFill &rFilling, GDIMetaFile& rTarget)
+ {
+ // write SvtGraphicFill
+ SvMemoryStream aMemStm;
+ WriteSvtGraphicFill( aMemStm, rFilling );
+ rTarget.AddAction(
+ new MetaCommentAction(
+ "XPATHFILL_SEQ_BEGIN",
+ 0,
+ static_cast< const sal_uInt8* >(aMemStm.GetData()),
+ aMemStm.TellEnd()));
+ }
+} // end of anonymous namespace
+
+// #i121267# Tooling to internally clip geometry against internal clip regions
+
+void clipMetafileContentAgainstOwnRegions(GDIMetaFile& rSource)
+{
+ const sal_uLong nObjCount(rSource.GetActionSize());
+
+ if(!nObjCount)
+ {
+ return;
+ }
+
+ // prepare target data container and push/pop stack data
+ GDIMetaFile aTarget;
+ bool bChanged(false);
+ std::vector< basegfx::B2DPolyPolygon > aClips;
+ std::vector< vcl::PushFlags > aPushFlags;
+ std::vector< MapMode > aMapModes;
+
+ // start with empty region
+ aClips.emplace_back();
+
+ // start with default MapMode (MapUnit::MapPixel)
+ aMapModes.emplace_back();
+
+ for(sal_uLong i(0); i < nObjCount; ++i)
+ {
+ const MetaAction* pAction(rSource.GetAction(i));
+ const MetaActionType nType(pAction->GetType());
+ bool bDone(false);
+
+ // basic operation takes care of clipregion actions (four) and push/pop of these
+ // to steer the currently set clip region. There *is* an active
+ // clip region when (aClips.size() && aClips.back().count()), see
+ // below
+ switch(nType)
+ {
+ case MetaActionType::CLIPREGION :
+ {
+ const MetaClipRegionAction* pA = static_cast< const MetaClipRegionAction* >(pAction);
+
+ if(pA->IsClipping())
+ {
+ const vcl::Region& rRegion = pA->GetRegion();
+ const basegfx::B2DPolyPolygon aNewClip(rRegion.GetAsB2DPolyPolygon());
+
+ aClips.back() = aNewClip;
+ }
+ else
+ {
+ aClips.back() = basegfx::B2DPolyPolygon();
+ }
+
+ break;
+ }
+
+ case MetaActionType::ISECTRECTCLIPREGION :
+ {
+ const MetaISectRectClipRegionAction* pA = static_cast< const MetaISectRectClipRegionAction* >(pAction);
+ const tools::Rectangle& rRect = pA->GetRect();
+
+ if(!rRect.IsEmpty() && !aClips.empty() && aClips.back().count())
+ {
+ const basegfx::B2DRange aClipRange(vcl::unotools::b2DRectangleFromRectangle(rRect));
+
+ aClips.back() = basegfx::utils::clipPolyPolygonOnRange(
+ aClips.back(),
+ aClipRange,
+ true, // inside
+ false); // stroke
+ }
+ break;
+ }
+
+ case MetaActionType::ISECTREGIONCLIPREGION :
+ {
+ const MetaISectRegionClipRegionAction* pA = static_cast< const MetaISectRegionClipRegionAction* >(pAction);
+ const vcl::Region& rRegion = pA->GetRegion();
+
+ if(!rRegion.IsEmpty() && !aClips.empty() && aClips.back().count())
+ {
+ const basegfx::B2DPolyPolygon aNewClip(rRegion.GetAsB2DPolyPolygon());
+
+ aClips.back() = basegfx::utils::clipPolyPolygonOnPolyPolygon(
+ aClips.back(),
+ aNewClip,
+ true, // inside
+ false); // stroke
+ }
+ break;
+ }
+
+ case MetaActionType::MOVECLIPREGION :
+ {
+ const MetaMoveClipRegionAction* pA = static_cast< const MetaMoveClipRegionAction* >(pAction);
+ const tools::Long aHorMove(pA->GetHorzMove());
+ const tools::Long aVerMove(pA->GetVertMove());
+
+ if((aHorMove || aVerMove) && !aClips.empty() && aClips.back().count())
+ {
+ aClips.back().transform(
+ basegfx::utils::createTranslateB2DHomMatrix(
+ aHorMove,
+ aVerMove));
+ }
+ break;
+ }
+
+ case MetaActionType::PUSH :
+ {
+ const MetaPushAction* pA = static_cast< const MetaPushAction* >(pAction);
+ const vcl::PushFlags nFlags(pA->GetFlags());
+
+ aPushFlags.push_back(nFlags);
+
+ if(nFlags & vcl::PushFlags::CLIPREGION)
+ {
+ aClips.push_back(aClips.back());
+ }
+
+ if(nFlags & vcl::PushFlags::MAPMODE)
+ {
+ aMapModes.push_back(aMapModes.back());
+ }
+ break;
+ }
+
+ case MetaActionType::POP :
+ {
+
+ if(!aPushFlags.empty())
+ {
+ const vcl::PushFlags nFlags(aPushFlags.back());
+ aPushFlags.pop_back();
+
+ if(nFlags & vcl::PushFlags::CLIPREGION)
+ {
+ if(aClips.size() > 1)
+ {
+ aClips.pop_back();
+ }
+ else
+ {
+ OSL_ENSURE(false, "Wrong POP() in ClipRegions (!)");
+ }
+ }
+
+ if(nFlags & vcl::PushFlags::MAPMODE)
+ {
+ if(aMapModes.size() > 1)
+ {
+ aMapModes.pop_back();
+ }
+ else
+ {
+ OSL_ENSURE(false, "Wrong POP() in MapModes (!)");
+ }
+ }
+ }
+ else
+ {
+ OSL_ENSURE(false, "Invalid pop() without push() (!)");
+ }
+
+ break;
+ }
+
+ case MetaActionType::MAPMODE :
+ {
+ const MetaMapModeAction* pA = static_cast< const MetaMapModeAction* >(pAction);
+
+ aMapModes.back() = pA->GetMapMode();
+ break;
+ }
+
+ default:
+ {
+ break;
+ }
+ }
+
+ // this area contains all actions which could potentially be clipped. Since
+ // this tooling is only a fallback (see comments in header), only the needed
+ // actions will be implemented. Extend using the pattern for the already
+ // implemented actions.
+ if(!aClips.empty() && aClips.back().count())
+ {
+ switch(nType)
+ {
+
+ // pixel actions, just check on inside
+
+ case MetaActionType::PIXEL :
+ {
+ const MetaPixelAction* pA = static_cast< const MetaPixelAction* >(pAction);
+ const Point& rPoint = pA->GetPoint();
+
+ if(!basegfx::utils::isInside(
+ aClips.back(),
+ basegfx::B2DPoint(rPoint.X(), rPoint.Y())))
+ {
+ // when not inside, do not add original
+ bDone = true;
+ }
+ break;
+ }
+
+ case MetaActionType::POINT :
+ {
+ const MetaPointAction* pA = static_cast< const MetaPointAction* >(pAction);
+ const Point& rPoint = pA->GetPoint();
+
+ if(!basegfx::utils::isInside(
+ aClips.back(),
+ basegfx::B2DPoint(rPoint.X(), rPoint.Y())))
+ {
+ // when not inside, do not add original
+ bDone = true;
+ }
+ break;
+ }
+
+ // geometry actions
+
+ case MetaActionType::LINE :
+ {
+ const MetaLineAction* pA = static_cast< const MetaLineAction* >(pAction);
+ const Point& rStart(pA->GetStartPoint());
+ const Point& rEnd(pA->GetEndPoint());
+ basegfx::B2DPolygon aLine;
+
+ aLine.append(basegfx::B2DPoint(rStart.X(), rStart.Y()));
+ aLine.append(basegfx::B2DPoint(rEnd.X(), rEnd.Y()));
+
+ bDone = handleGeometricContent(
+ aClips.back(),
+ basegfx::B2DPolyPolygon(aLine),
+ aTarget,
+ true); // stroke
+ break;
+ }
+
+ case MetaActionType::RECT :
+ {
+ const MetaRectAction* pA = static_cast< const MetaRectAction* >(pAction);
+ const tools::Rectangle& rRect = pA->GetRect();
+
+ if(rRect.IsEmpty())
+ {
+ bDone = true;
+ }
+ else
+ {
+
+ bDone = handleGeometricContent(
+ aClips.back(),
+ basegfx::B2DPolyPolygon(
+ basegfx::utils::createPolygonFromRect(
+ vcl::unotools::b2DRectangleFromRectangle(rRect))),
+ aTarget,
+ false); // stroke
+ }
+ break;
+ }
+
+ case MetaActionType::ROUNDRECT :
+ {
+ const MetaRoundRectAction* pA = static_cast< const MetaRoundRectAction* >(pAction);
+ const tools::Rectangle& rRect = pA->GetRect();
+
+ if(rRect.IsEmpty())
+ {
+ bDone = true;
+ }
+ else
+ {
+ const sal_uInt32 nHor(pA->GetHorzRound());
+ const sal_uInt32 nVer(pA->GetVertRound());
+ const basegfx::B2DRange aRange(vcl::unotools::b2DRectangleFromRectangle(rRect));
+ basegfx::B2DPolygon aOutline;
+
+ if(nHor || nVer)
+ {
+ double fRadiusX((nHor * 2.0) / (aRange.getWidth() > 0.0 ? aRange.getWidth() : 1.0));
+ double fRadiusY((nVer * 2.0) / (aRange.getHeight() > 0.0 ? aRange.getHeight() : 1.0));
+ fRadiusX = std::clamp(fRadiusX, 0.0, 1.0);
+ fRadiusY = std::clamp(fRadiusY, 0.0, 1.0);
+
+ aOutline = basegfx::utils::createPolygonFromRect(aRange, fRadiusX, fRadiusY);
+ }
+ else
+ {
+ aOutline = basegfx::utils::createPolygonFromRect(aRange);
+ }
+
+ bDone = handleGeometricContent(
+ aClips.back(),
+ basegfx::B2DPolyPolygon(aOutline),
+ aTarget,
+ false); // stroke
+ }
+ break;
+ }
+
+ case MetaActionType::ELLIPSE :
+ {
+ const MetaEllipseAction* pA = static_cast< const MetaEllipseAction* >(pAction);
+ const tools::Rectangle& rRect = pA->GetRect();
+
+ if(rRect.IsEmpty())
+ {
+ bDone = true;
+ }
+ else
+ {
+ const basegfx::B2DRange aRange(vcl::unotools::b2DRectangleFromRectangle(rRect));
+
+ bDone = handleGeometricContent(
+ aClips.back(),
+ basegfx::B2DPolyPolygon(
+ basegfx::utils::createPolygonFromEllipse(
+ aRange.getCenter(),
+ aRange.getWidth() * 0.5,
+ aRange.getHeight() * 0.5)),
+ aTarget,
+ false); // stroke
+ }
+ break;
+ }
+
+ case MetaActionType::ARC :
+ {
+ const MetaArcAction* pA = static_cast< const MetaArcAction* >(pAction);
+ const tools::Rectangle& rRect = pA->GetRect();
+
+ if(rRect.IsEmpty())
+ {
+ bDone = true;
+ }
+ else
+ {
+ const tools::Polygon aToolsPoly(
+ rRect,
+ pA->GetStartPoint(),
+ pA->GetEndPoint(),
+ PolyStyle::Arc);
+
+ bDone = handleGeometricContent(
+ aClips.back(),
+ basegfx::B2DPolyPolygon(aToolsPoly.getB2DPolygon()),
+ aTarget,
+ true); // stroke
+ }
+ break;
+ }
+
+ case MetaActionType::PIE :
+ {
+ const MetaPieAction* pA = static_cast< const MetaPieAction* >(pAction);
+ const tools::Rectangle& rRect = pA->GetRect();
+
+ if(rRect.IsEmpty())
+ {
+ bDone = true;
+ }
+ else
+ {
+ const tools::Polygon aToolsPoly(
+ rRect,
+ pA->GetStartPoint(),
+ pA->GetEndPoint(),
+ PolyStyle::Pie);
+
+ bDone = handleGeometricContent(
+ aClips.back(),
+ basegfx::B2DPolyPolygon(aToolsPoly.getB2DPolygon()),
+ aTarget,
+ false); // stroke
+ }
+ break;
+ }
+
+ case MetaActionType::CHORD :
+ {
+ const MetaChordAction* pA = static_cast< const MetaChordAction* >(pAction);
+ const tools::Rectangle& rRect = pA->GetRect();
+
+ if(rRect.IsEmpty())
+ {
+ bDone = true;
+ }
+ else
+ {
+ const tools::Polygon aToolsPoly(
+ rRect,
+ pA->GetStartPoint(),
+ pA->GetEndPoint(),
+ PolyStyle::Chord);
+
+ bDone = handleGeometricContent(
+ aClips.back(),
+ basegfx::B2DPolyPolygon(aToolsPoly.getB2DPolygon()),
+ aTarget,
+ false); // stroke
+ }
+ break;
+ }
+
+ case MetaActionType::POLYLINE :
+ {
+ const MetaPolyLineAction* pA = static_cast< const MetaPolyLineAction* >(pAction);
+
+ bDone = handleGeometricContent(
+ aClips.back(),
+ basegfx::B2DPolyPolygon(pA->GetPolygon().getB2DPolygon()),
+ aTarget,
+ true); // stroke
+ break;
+ }
+
+ case MetaActionType::POLYGON :
+ {
+ const MetaPolygonAction* pA = static_cast< const MetaPolygonAction* >(pAction);
+
+ bDone = handleGeometricContent(
+ aClips.back(),
+ basegfx::B2DPolyPolygon(pA->GetPolygon().getB2DPolygon()),
+ aTarget,
+ false); // stroke
+ break;
+ }
+
+ case MetaActionType::POLYPOLYGON :
+ {
+ const MetaPolyPolygonAction* pA = static_cast< const MetaPolyPolygonAction* >(pAction);
+ const tools::PolyPolygon& rPoly = pA->GetPolyPolygon();
+
+ bDone = handleGeometricContent(
+ aClips.back(),
+ rPoly.getB2DPolyPolygon(),
+ aTarget,
+ false); // stroke
+ break;
+ }
+
+ // bitmap actions, create BitmapEx with alpha channel derived
+ // from clipping
+
+ case MetaActionType::BMPEX :
+ {
+ const MetaBmpExAction* pA = static_cast< const MetaBmpExAction* >(pAction);
+ const BitmapEx& rBitmapEx = pA->GetBitmapEx();
+
+ // the logical size depends on the PrefSize of the given bitmap in
+ // combination with the current MapMode
+ Size aLogicalSize(rBitmapEx.GetPrefSize());
+
+ if(MapUnit::MapPixel == rBitmapEx.GetPrefMapMode().GetMapUnit())
+ {
+ aLogicalSize = Application::GetDefaultDevice()->PixelToLogic(aLogicalSize, aMapModes.back());
+ }
+ else
+ {
+ aLogicalSize = OutputDevice::LogicToLogic(aLogicalSize, rBitmapEx.GetPrefMapMode(), aMapModes.back());
+ }
+
+ bDone = handleBitmapContent(
+ aClips.back(),
+ pA->GetPoint(),
+ aLogicalSize,
+ rBitmapEx,
+ aTarget);
+ break;
+ }
+
+ case MetaActionType::BMP :
+ {
+ const MetaBmpAction* pA = static_cast< const MetaBmpAction* >(pAction);
+ const Bitmap& rBitmap = pA->GetBitmap();
+
+ // the logical size depends on the PrefSize of the given bitmap in
+ // combination with the current MapMode
+ Size aLogicalSize(rBitmap.GetPrefSize());
+
+ if(MapUnit::MapPixel == rBitmap.GetPrefMapMode().GetMapUnit())
+ {
+ aLogicalSize = Application::GetDefaultDevice()->PixelToLogic(aLogicalSize, aMapModes.back());
+ }
+ else
+ {
+ aLogicalSize = OutputDevice::LogicToLogic(aLogicalSize, rBitmap.GetPrefMapMode(), aMapModes.back());
+ }
+
+ bDone = handleBitmapContent(
+ aClips.back(),
+ pA->GetPoint(),
+ aLogicalSize,
+ BitmapEx(rBitmap),
+ aTarget);
+ break;
+ }
+
+ case MetaActionType::BMPEXSCALE :
+ {
+ const MetaBmpExScaleAction* pA = static_cast< const MetaBmpExScaleAction* >(pAction);
+
+ bDone = handleBitmapContent(
+ aClips.back(),
+ pA->GetPoint(),
+ pA->GetSize(),
+ pA->GetBitmapEx(),
+ aTarget);
+ break;
+ }
+
+ case MetaActionType::BMPSCALE :
+ {
+ const MetaBmpScaleAction* pA = static_cast< const MetaBmpScaleAction* >(pAction);
+
+ bDone = handleBitmapContent(
+ aClips.back(),
+ pA->GetPoint(),
+ pA->GetSize(),
+ BitmapEx(pA->GetBitmap()),
+ aTarget);
+ break;
+ }
+
+ case MetaActionType::BMPEXSCALEPART :
+ {
+ const MetaBmpExScalePartAction* pA = static_cast< const MetaBmpExScalePartAction* >(pAction);
+ const BitmapEx& rBitmapEx = pA->GetBitmapEx();
+
+ if(rBitmapEx.IsEmpty())
+ {
+ // empty content
+ bDone = true;
+ }
+ else
+ {
+ BitmapEx aCroppedBitmapEx(rBitmapEx);
+ const tools::Rectangle aCropRectangle(pA->GetSrcPoint(), pA->GetSrcSize());
+
+ if(aCropRectangle.IsEmpty())
+ {
+ // empty content
+ bDone = true;
+ }
+ else
+ {
+ aCroppedBitmapEx.Crop(aCropRectangle);
+ bDone = handleBitmapContent(
+ aClips.back(),
+ pA->GetDestPoint(),
+ pA->GetDestSize(),
+ aCroppedBitmapEx,
+ aTarget);
+ }
+ }
+ break;
+ }
+
+ case MetaActionType::BMPSCALEPART :
+ {
+ const MetaBmpScalePartAction* pA = static_cast< const MetaBmpScalePartAction* >(pAction);
+ const Bitmap& rBitmap = pA->GetBitmap();
+
+ if(rBitmap.IsEmpty())
+ {
+ // empty content
+ bDone = true;
+ }
+ else
+ {
+ Bitmap aCroppedBitmap(rBitmap);
+ const tools::Rectangle aCropRectangle(pA->GetSrcPoint(), pA->GetSrcSize());
+
+ if(aCropRectangle.IsEmpty())
+ {
+ // empty content
+ bDone = true;
+ }
+ else
+ {
+ aCroppedBitmap.Crop(aCropRectangle);
+ bDone = handleBitmapContent(
+ aClips.back(),
+ pA->GetDestPoint(),
+ pA->GetDestSize(),
+ BitmapEx(aCroppedBitmap),
+ aTarget);
+ }
+ }
+ break;
+ }
+
+ // need to handle all those 'hacks' which hide data in comments
+
+ case MetaActionType::COMMENT :
+ {
+ const MetaCommentAction* pA = static_cast< const MetaCommentAction* >(pAction);
+ const OString& rComment = pA->GetComment();
+
+ if(rComment.equalsIgnoreAsciiCase("XGRAD_SEQ_BEGIN"))
+ {
+ // nothing to do; this just means that between here and XGRAD_SEQ_END
+ // exists a MetaActionType::GRADIENTEX mixed with Xor-tricked painting
+ // commands. This comment is used to scan over these and filter for
+ // the gradient action. It is needed to support MetaActionType::GRADIENTEX
+ // in this processor to solve usages.
+ }
+ else if(rComment.equalsIgnoreAsciiCase("XPATHFILL_SEQ_BEGIN"))
+ {
+ SvtGraphicFill aFilling;
+ tools::PolyPolygon aPath;
+
+ { // read SvtGraphicFill
+ SvMemoryStream aMemStm(const_cast<sal_uInt8 *>(pA->GetData()), pA->GetDataSize(),StreamMode::READ);
+ ReadSvtGraphicFill( aMemStm, aFilling );
+ }
+
+ aFilling.getPath(aPath);
+
+ if(aPath.Count())
+ {
+ const basegfx::B2DPolyPolygon aSource(aPath.getB2DPolyPolygon());
+ const basegfx::B2DPolyPolygon aResult(
+ basegfx::utils::clipPolyPolygonOnPolyPolygon(
+ aSource,
+ aClips.back(),
+ true, // inside
+ false)); // stroke
+
+ if(aResult.count())
+ {
+ if(aResult != aSource)
+ {
+ // add clipped geometry
+ aFilling.setPath(tools::PolyPolygon(aResult));
+ addSvtGraphicFill(aFilling, aTarget);
+ bDone = true;
+ }
+ }
+ else
+ {
+ // exchange with empty polygon
+ aFilling.setPath(tools::PolyPolygon());
+ addSvtGraphicFill(aFilling, aTarget);
+ bDone = true;
+ }
+ }
+ }
+ else if(rComment.equalsIgnoreAsciiCase("XPATHSTROKE_SEQ_BEGIN"))
+ {
+ SvtGraphicStroke aStroke;
+ tools::Polygon aPath;
+
+ { // read SvtGraphicFill
+ SvMemoryStream aMemStm(const_cast<sal_uInt8 *>(pA->GetData()), pA->GetDataSize(),StreamMode::READ);
+ ReadSvtGraphicStroke( aMemStm, aStroke );
+ }
+
+ aStroke.getPath(aPath);
+
+ if(aPath.GetSize())
+ {
+ const basegfx::B2DPolygon aSource(aPath.getB2DPolygon());
+ const basegfx::B2DPolyPolygon aResult(
+ basegfx::utils::clipPolygonOnPolyPolygon(
+ aSource,
+ aClips.back(),
+ true, // inside
+ true)); // stroke
+
+ if(aResult.count())
+ {
+ if(aResult.count() > 1 || aResult.getB2DPolygon(0) != aSource)
+ {
+ // add clipped geometry
+ for(auto const& rB2DPolygon : aResult)
+ {
+ aStroke.setPath(tools::Polygon(rB2DPolygon));
+ addSvtGraphicStroke(aStroke, aTarget);
+ }
+
+ bDone = true;
+ }
+ }
+ else
+ {
+ // exchange with empty polygon
+ aStroke.setPath(tools::Polygon());
+ addSvtGraphicStroke(aStroke, aTarget);
+ bDone = true;
+ }
+
+ }
+ }
+ break;
+ }
+
+ // need to handle gradient fills (hopefully only unrotated ones)
+
+ case MetaActionType::GRADIENT :
+ {
+ const MetaGradientAction* pA = static_cast< const MetaGradientAction* >(pAction);
+ const tools::Rectangle& rRect = pA->GetRect();
+
+ if(rRect.IsEmpty())
+ {
+ bDone = true;
+ }
+ else
+ {
+ bDone = handleGradientContent(
+ aClips.back(),
+ basegfx::B2DPolyPolygon(
+ basegfx::utils::createPolygonFromRect(
+ vcl::unotools::b2DRectangleFromRectangle(rRect))),
+ pA->GetGradient(),
+ aTarget);
+ }
+
+ break;
+ }
+
+ case MetaActionType::GRADIENTEX :
+ {
+ const MetaGradientExAction* pA = static_cast< const MetaGradientExAction* >(pAction);
+ const tools::PolyPolygon& rPolyPoly = pA->GetPolyPolygon();
+
+ bDone = handleGradientContent(
+ aClips.back(),
+ rPolyPoly.getB2DPolyPolygon(),
+ pA->GetGradient(),
+ aTarget);
+ break;
+ }
+
+ // not (yet) supported actions
+
+ // MetaActionType::NONE
+ // MetaActionType::TEXT
+ // MetaActionType::TEXTARRAY
+ // MetaActionType::STRETCHTEXT
+ // MetaActionType::TEXTRECT
+ // MetaActionType::MASK
+ // MetaActionType::MASKSCALE
+ // MetaActionType::MASKSCALEPART
+ // MetaActionType::HATCH
+ // MetaActionType::WALLPAPER
+ // MetaActionType::FILLCOLOR
+ // MetaActionType::TEXTCOLOR
+ // MetaActionType::TEXTFILLCOLOR
+ // MetaActionType::TEXTALIGN
+ // MetaActionType::MAPMODE
+ // MetaActionType::FONT
+ // MetaActionType::Transparent
+ // MetaActionType::EPS
+ // MetaActionType::REFPOINT
+ // MetaActionType::TEXTLINECOLOR
+ // MetaActionType::TEXTLINE
+ // MetaActionType::FLOATTRANSPARENT
+ // MetaActionType::LAYOUTMODE
+ // MetaActionType::TEXTLANGUAGE
+ // MetaActionType::OVERLINECOLOR
+
+ // if an action is not handled at all, it will simply get copied to the
+ // target (see below). This is the default for all non-implemented actions
+ default:
+ {
+ break;
+ }
+ }
+ }
+
+ if(bDone)
+ {
+ bChanged = true;
+ }
+ else
+ {
+ aTarget.AddAction(const_cast< MetaAction* >(pAction));
+ }
+ }
+
+ if(bChanged)
+ {
+ // when changed, copy back and do not forget to set MapMode
+ // and PrefSize
+ aTarget.SetPrefMapMode(rSource.GetPrefMapMode());
+ aTarget.SetPrefSize(rSource.GetPrefSize());
+ rSource = aTarget;
+ }
+}
+
+bool usesClipActions(const GDIMetaFile& rSource)
+{
+ const sal_uLong nObjCount(rSource.GetActionSize());
+
+ for(sal_uLong i(0); i < nObjCount; ++i)
+ {
+ const MetaAction* pAction(rSource.GetAction(i));
+ const MetaActionType nType(pAction->GetType());
+
+ switch(nType)
+ {
+ case MetaActionType::CLIPREGION :
+ case MetaActionType::ISECTRECTCLIPREGION :
+ case MetaActionType::ISECTREGIONCLIPREGION :
+ case MetaActionType::MOVECLIPREGION :
+ {
+ return true;
+ }
+
+ default: break;
+ }
+ }
+
+ return false;
+}
+
+MetafileAccessor::~MetafileAccessor()
+{
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-17 22:00:51 +0000