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Diffstat (limited to '')
| -rw-r--r-- | cppcanvas/source/mtfrenderer/implrenderer.cxx | 3077 |
1 files changed, 3077 insertions, 0 deletions
diff --git a/cppcanvas/source/mtfrenderer/implrenderer.cxx b/cppcanvas/source/mtfrenderer/implrenderer.cxx new file mode 100644 index 000000000..4109e2163 --- /dev/null +++ b/cppcanvas/source/mtfrenderer/implrenderer.cxx @@ -0,0 +1,3077 @@ +/* -*- 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 <tools/diagnose_ex.h> +#include <tools/debug.hxx> +#include <vcl/svapp.hxx> +#include <comphelper/propertysequence.hxx> +#include <cppcanvas/canvas.hxx> +#include <com/sun/star/rendering/XGraphicDevice.hpp> +#include <com/sun/star/rendering/TexturingMode.hpp> +#include <com/sun/star/uno/Sequence.hxx> +#include <com/sun/star/rendering/PanoseProportion.hpp> +#include <com/sun/star/rendering/XCanvasFont.hpp> +#include <com/sun/star/rendering/XCanvas.hpp> +#include <com/sun/star/rendering/PathCapType.hpp> +#include <com/sun/star/rendering/PathJoinType.hpp> +#include <basegfx/utils/canvastools.hxx> +#include <basegfx/utils/gradienttools.hxx> +#include <basegfx/numeric/ftools.hxx> +#include <basegfx/polygon/b2dpolypolygontools.hxx> +#include <basegfx/polygon/b2dpolygontools.hxx> +#include <basegfx/polygon/b2dpolygon.hxx> +#include <basegfx/polygon/b2dpolypolygon.hxx> +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <basegfx/vector/b2dsize.hxx> +#include <basegfx/range/b2drectangle.hxx> +#include <basegfx/point/b2dpoint.hxx> +#include <basegfx/tuple/b2dtuple.hxx> +#include <basegfx/polygon/b2dpolygonclipper.hxx> +#include <canvas/canvastools.hxx> +#include <rtl/ustrbuf.hxx> +#include <vcl/canvastools.hxx> +#include <vcl/gdimtf.hxx> +#include <vcl/metaact.hxx> +#include <vcl/virdev.hxx> +#include <vcl/metric.hxx> +#include <vcl/graphictools.hxx> +#include <vcl/BitmapPalette.hxx> +#include <tools/poly.hxx> +#include <i18nlangtag/languagetag.hxx> +#include <implrenderer.hxx> +#include <tools.hxx> +#include <outdevstate.hxx> +#include <action.hxx> +#include <sal/log.hxx> +#include "bitmapaction.hxx" +#include "lineaction.hxx" +#include "pointaction.hxx" +#include "polypolyaction.hxx" +#include "textaction.hxx" +#include "transparencygroupaction.hxx" +#include <utility> +#include <vector> +#include <algorithm> +#include <memory> +#include "mtftools.hxx" + +using namespace ::com::sun::star; + + +// free support functions +// ====================== +namespace +{ + template < class MetaActionType > void setStateColor( MetaActionType* pAct, + bool& rIsColorSet, + uno::Sequence< double >& rColorSequence, + const cppcanvas::CanvasSharedPtr& rCanvas ) + { + rIsColorSet = pAct->IsSetting(); + if (!rIsColorSet) + return; + + ::Color aColor( pAct->GetColor() ); + + // force alpha part of color to + // opaque. transparent painting is done + // explicitly via MetaActionType::Transparent + aColor.SetTransparency(0); + //aColor.SetTransparency(128); + + rColorSequence = vcl::unotools::colorToDoubleSequence( + aColor, + rCanvas->getUNOCanvas()->getDevice()->getDeviceColorSpace() ); + } + + void setupStrokeAttributes( rendering::StrokeAttributes& o_rStrokeAttributes, + const ::cppcanvas::internal::ActionFactoryParameters& rParms, + const LineInfo& rLineInfo ) + { + const ::basegfx::B2DSize aWidth( rLineInfo.GetWidth(), 0 ); + o_rStrokeAttributes.StrokeWidth = + (rParms.mrStates.getState().mapModeTransform * aWidth).getX(); + + // setup reasonable defaults + o_rStrokeAttributes.MiterLimit = 15.0; // 1.0 was no good default; GDI+'s limit is 10.0, our's is 15.0 + o_rStrokeAttributes.StartCapType = rendering::PathCapType::BUTT; + o_rStrokeAttributes.EndCapType = rendering::PathCapType::BUTT; + + switch (rLineInfo.GetLineJoin()) + { + case basegfx::B2DLineJoin::NONE: + o_rStrokeAttributes.JoinType = rendering::PathJoinType::NONE; + break; + case basegfx::B2DLineJoin::Bevel: + o_rStrokeAttributes.JoinType = rendering::PathJoinType::BEVEL; + break; + case basegfx::B2DLineJoin::Miter: + o_rStrokeAttributes.JoinType = rendering::PathJoinType::MITER; + break; + case basegfx::B2DLineJoin::Round: + o_rStrokeAttributes.JoinType = rendering::PathJoinType::ROUND; + break; + } + + switch(rLineInfo.GetLineCap()) + { + default: /* css::drawing::LineCap_BUTT */ + { + o_rStrokeAttributes.StartCapType = rendering::PathCapType::BUTT; + o_rStrokeAttributes.EndCapType = rendering::PathCapType::BUTT; + break; + } + case css::drawing::LineCap_ROUND: + { + o_rStrokeAttributes.StartCapType = rendering::PathCapType::ROUND; + o_rStrokeAttributes.EndCapType = rendering::PathCapType::ROUND; + break; + } + case css::drawing::LineCap_SQUARE: + { + o_rStrokeAttributes.StartCapType = rendering::PathCapType::SQUARE; + o_rStrokeAttributes.EndCapType = rendering::PathCapType::SQUARE; + break; + } + } + + if( LineStyle::Dash != rLineInfo.GetStyle() ) + return; + + const ::cppcanvas::internal::OutDevState& rState( rParms.mrStates.getState() ); + + // TODO(F1): Interpret OutDev::GetRefPoint() for the start of the dashing. + + // interpret dash info only if explicitly enabled as + // style + const ::basegfx::B2DSize aDistance( rLineInfo.GetDistance(), 0 ); + const double nDistance( (rState.mapModeTransform * aDistance).getX() ); + + const ::basegfx::B2DSize aDashLen( rLineInfo.GetDashLen(), 0 ); + const double nDashLen( (rState.mapModeTransform * aDashLen).getX() ); + + const ::basegfx::B2DSize aDotLen( rLineInfo.GetDotLen(), 0 ); + const double nDotLen( (rState.mapModeTransform * aDotLen).getX() ); + + const sal_Int32 nNumArryEntries( 2*rLineInfo.GetDashCount() + + 2*rLineInfo.GetDotCount() ); + + o_rStrokeAttributes.DashArray.realloc( nNumArryEntries ); + double* pDashArray = o_rStrokeAttributes.DashArray.getArray(); + + + // iteratively fill dash array, first with dashes, then + // with dots. + + + sal_Int32 nCurrEntry=0; + + for( sal_Int32 i=0; i<rLineInfo.GetDashCount(); ++i ) + { + pDashArray[nCurrEntry++] = nDashLen; + pDashArray[nCurrEntry++] = nDistance; + } + for( sal_Int32 i=0; i<rLineInfo.GetDotCount(); ++i ) + { + pDashArray[nCurrEntry++] = nDotLen; + pDashArray[nCurrEntry++] = nDistance; + } + } + + + /** Create masked BitmapEx, where the white areas of rBitmap are + transparent, and the other appear in rMaskColor. + */ + BitmapEx createMaskBmpEx( const Bitmap& rBitmap, + const ::Color& rMaskColor ) + { + const ::Color aWhite( COL_WHITE ); + BitmapPalette aBiLevelPalette(2); + aBiLevelPalette[0] = aWhite; + aBiLevelPalette[1] = rMaskColor; + + Bitmap aMask( rBitmap.CreateMask( aWhite )); + Bitmap aSolid( rBitmap.GetSizePixel(), + 1, + &aBiLevelPalette ); + aSolid.Erase( rMaskColor ); + + return BitmapEx( aSolid, aMask ); + } + + OUString convertToLocalizedNumerals(const OUString& rStr, + LanguageType eTextLanguage) + { + OUStringBuffer aBuf(rStr); + for (sal_Int32 i = 0; i < aBuf.getLength(); ++i) + { + sal_Unicode nChar = aBuf[i]; + if (nChar >= '0' && nChar <= '9') + aBuf[i] = GetLocalizedChar(nChar, eTextLanguage); + } + return aBuf.makeStringAndClear(); + } +} + +namespace cppcanvas::internal +{ + // state stack manipulators + + void VectorOfOutDevStates::clearStateStack() + { + m_aStates.clear(); + const OutDevState aDefaultState; + m_aStates.push_back(aDefaultState); + } + + OutDevState& VectorOfOutDevStates::getState() + { + return m_aStates.back(); + } + + const OutDevState& VectorOfOutDevStates::getState() const + { + return m_aStates.back(); + } + + void VectorOfOutDevStates::pushState(PushFlags nFlags) + { + m_aStates.push_back( getState() ); + getState().pushFlags = nFlags; + } + + void VectorOfOutDevStates::popState() + { + if( getState().pushFlags != PushFlags::ALL ) + { + // a state is pushed which is incomplete, i.e. does not + // restore everything to the previous stack level when + // popped. + // That means, we take the old state, and restore every + // OutDevState member whose flag is set, from the new to the + // old state. Then the new state gets overwritten by the + // calculated state + + // preset to-be-calculated new state with old state + OutDevState aCalculatedNewState( getState() ); + + // selectively copy to-be-restored content over saved old + // state + m_aStates.pop_back(); + + const OutDevState& rNewState( getState() ); + + if( aCalculatedNewState.pushFlags & PushFlags::LINECOLOR ) + { + aCalculatedNewState.lineColor = rNewState.lineColor; + aCalculatedNewState.isLineColorSet = rNewState.isLineColorSet; + } + + if( aCalculatedNewState.pushFlags & PushFlags::FILLCOLOR ) + { + aCalculatedNewState.fillColor = rNewState.fillColor; + aCalculatedNewState.isFillColorSet = rNewState.isFillColorSet; + } + + if( aCalculatedNewState.pushFlags & PushFlags::FONT ) + { + aCalculatedNewState.xFont = rNewState.xFont; + aCalculatedNewState.fontRotation = rNewState.fontRotation; + aCalculatedNewState.textReliefStyle = rNewState.textReliefStyle; + aCalculatedNewState.textOverlineStyle = rNewState.textOverlineStyle; + aCalculatedNewState.textUnderlineStyle = rNewState.textUnderlineStyle; + aCalculatedNewState.textStrikeoutStyle = rNewState.textStrikeoutStyle; + aCalculatedNewState.textEmphasisMark = rNewState.textEmphasisMark; + aCalculatedNewState.isTextEffectShadowSet = rNewState.isTextEffectShadowSet; + aCalculatedNewState.isTextWordUnderlineSet = rNewState.isTextWordUnderlineSet; + aCalculatedNewState.isTextOutlineModeSet = rNewState.isTextOutlineModeSet; + } + + if( aCalculatedNewState.pushFlags & PushFlags::TEXTCOLOR ) + { + aCalculatedNewState.textColor = rNewState.textColor; + } + + if( aCalculatedNewState.pushFlags & PushFlags::MAPMODE ) + { + aCalculatedNewState.mapModeTransform = rNewState.mapModeTransform; + } + + if( aCalculatedNewState.pushFlags & PushFlags::CLIPREGION ) + { + aCalculatedNewState.clip = rNewState.clip; + aCalculatedNewState.clipRect = rNewState.clipRect; + aCalculatedNewState.xClipPoly = rNewState.xClipPoly; + } + + // TODO(F2): Raster ops NYI + // if( (aCalculatedNewState.pushFlags & PushFlags::RASTEROP) ) + // { + // } + + if( aCalculatedNewState.pushFlags & PushFlags::TEXTFILLCOLOR ) + { + aCalculatedNewState.textFillColor = rNewState.textFillColor; + aCalculatedNewState.isTextFillColorSet = rNewState.isTextFillColorSet; + } + + if( aCalculatedNewState.pushFlags & PushFlags::TEXTALIGN ) + { + aCalculatedNewState.textReferencePoint = rNewState.textReferencePoint; + } + + // TODO(F1): Refpoint handling NYI + // if( (aCalculatedNewState.pushFlags & PushFlags::REFPOINT) ) + // { + // } + + if( aCalculatedNewState.pushFlags & PushFlags::TEXTLINECOLOR ) + { + aCalculatedNewState.textLineColor = rNewState.textLineColor; + aCalculatedNewState.isTextLineColorSet = rNewState.isTextLineColorSet; + } + + if( aCalculatedNewState.pushFlags & PushFlags::OVERLINECOLOR ) + { + aCalculatedNewState.textOverlineColor = rNewState.textOverlineColor; + aCalculatedNewState.isTextOverlineColorSet = rNewState.isTextOverlineColorSet; + } + + if( aCalculatedNewState.pushFlags & PushFlags::TEXTLAYOUTMODE ) + { + aCalculatedNewState.textAlignment = rNewState.textAlignment; + aCalculatedNewState.textDirection = rNewState.textDirection; + } + + // TODO(F2): Text language handling NYI + // if( (aCalculatedNewState.pushFlags & PushFlags::TEXTLANGUAGE) ) + // { + // } + + // always copy push mode + aCalculatedNewState.pushFlags = rNewState.pushFlags; + + // flush to stack + getState() = aCalculatedNewState; + } + else + { + m_aStates.pop_back(); + } + } + + bool ImplRenderer::createFillAndStroke( const ::basegfx::B2DPolyPolygon& rPolyPoly, + const ActionFactoryParameters& rParms ) + { + const OutDevState& rState( rParms.mrStates.getState() ); + if( (!rState.isLineColorSet && + !rState.isFillColorSet) || + (!rState.lineColor.hasElements() && + !rState.fillColor.hasElements()) ) + { + return false; + } + + std::shared_ptr<Action> pPolyAction( + internal::PolyPolyActionFactory::createPolyPolyAction( + rPolyPoly, rParms.mrCanvas, rState ) ); + + if( pPolyAction ) + { + maActions.emplace_back( + pPolyAction, + rParms.mrCurrActionIndex ); + + rParms.mrCurrActionIndex += pPolyAction->getActionCount()-1; + } + + return true; + } + + bool ImplRenderer::createFillAndStroke( const ::basegfx::B2DPolygon& rPoly, + const ActionFactoryParameters& rParms ) + { + return createFillAndStroke( ::basegfx::B2DPolyPolygon( rPoly ), + rParms ); + } + + void ImplRenderer::skipContent( GDIMetaFile& rMtf, + const char* pCommentString, + sal_Int32& io_rCurrActionIndex ) + { + ENSURE_OR_THROW( pCommentString, + "ImplRenderer::skipContent(): NULL string given" ); + + MetaAction* pCurrAct; + while( (pCurrAct=rMtf.NextAction()) != nullptr ) + { + // increment action index, we've skipped an action. + ++io_rCurrActionIndex; + + if( pCurrAct->GetType() == MetaActionType::COMMENT && + static_cast<MetaCommentAction*>(pCurrAct)->GetComment().equalsIgnoreAsciiCase( + pCommentString) ) + { + // requested comment found, done + return; + } + } + + // EOF + } + + bool ImplRenderer::isActionContained( GDIMetaFile& rMtf, + const char* pCommentString, + MetaActionType nType ) + { + ENSURE_OR_THROW( pCommentString, + "ImplRenderer::isActionContained(): NULL string given" ); + + bool bRet( false ); + + // at least _one_ call to GDIMetaFile::NextAction() is + // executed + size_t nPos( 1 ); + + MetaAction* pCurrAct; + while( (pCurrAct=rMtf.NextAction()) != nullptr ) + { + if( pCurrAct->GetType() == nType ) + { + bRet = true; // action type found + break; + } + + if( pCurrAct->GetType() == MetaActionType::COMMENT && + static_cast<MetaCommentAction*>(pCurrAct)->GetComment().equalsIgnoreAsciiCase( + pCommentString) ) + { + // delimiting end comment found, done + bRet = false; // not yet found + break; + } + + ++nPos; + } + + // rewind metafile to previous position (this method must + // not change the current metaaction) + while( nPos-- ) + rMtf.WindPrev(); + + if( !pCurrAct ) + { + // EOF, and not yet found + bRet = false; + } + + return bRet; + } + + void ImplRenderer::createGradientAction( const ::tools::PolyPolygon& rPoly, + const ::Gradient& rGradient, + const ActionFactoryParameters& rParms, + bool bIsPolygonRectangle, + bool bSubsettableActions ) + { + DBG_TESTSOLARMUTEX(); + + ::basegfx::B2DPolyPolygon aDevicePoly( rPoly.getB2DPolyPolygon() ); + aDevicePoly.transform( rParms.mrStates.getState().mapModeTransform ); + + // decide, whether this gradient can be rendered natively + // by the canvas, or must be emulated via VCL gradient + // action extraction. + const sal_uInt16 nSteps( rGradient.GetSteps() ); + + if( // step count is infinite, can use native canvas + // gradients here + nSteps == 0 || + // step count is sufficiently high, such that no + // discernible difference should be visible. + nSteps > 64 ) + { + uno::Reference< lang::XMultiServiceFactory> xFactory( + rParms.mrCanvas->getUNOCanvas()->getDevice()->getParametricPolyPolygonFactory() ); + + if( xFactory.is() ) + { + rendering::Texture aTexture; + + aTexture.RepeatModeX = rendering::TexturingMode::CLAMP; + aTexture.RepeatModeY = rendering::TexturingMode::CLAMP; + aTexture.Alpha = 1.0; + + + // setup start/end color values + + + // scale color coefficients with gradient intensities + const sal_uInt16 nStartIntensity( rGradient.GetStartIntensity() ); + ::Color aVCLStartColor( rGradient.GetStartColor() ); + aVCLStartColor.SetRed( static_cast<sal_uInt8>(aVCLStartColor.GetRed() * nStartIntensity / 100) ); + aVCLStartColor.SetGreen( static_cast<sal_uInt8>(aVCLStartColor.GetGreen() * nStartIntensity / 100) ); + aVCLStartColor.SetBlue( static_cast<sal_uInt8>(aVCLStartColor.GetBlue() * nStartIntensity / 100) ); + + const sal_uInt16 nEndIntensity( rGradient.GetEndIntensity() ); + ::Color aVCLEndColor( rGradient.GetEndColor() ); + aVCLEndColor.SetRed( static_cast<sal_uInt8>(aVCLEndColor.GetRed() * nEndIntensity / 100) ); + aVCLEndColor.SetGreen( static_cast<sal_uInt8>(aVCLEndColor.GetGreen() * nEndIntensity / 100) ); + aVCLEndColor.SetBlue( static_cast<sal_uInt8>(aVCLEndColor.GetBlue() * nEndIntensity / 100) ); + + uno::Reference<rendering::XColorSpace> xColorSpace( + rParms.mrCanvas->getUNOCanvas()->getDevice()->getDeviceColorSpace()); + const uno::Sequence< double > aStartColor( + vcl::unotools::colorToDoubleSequence( aVCLStartColor, + xColorSpace )); + const uno::Sequence< double > aEndColor( + vcl::unotools::colorToDoubleSequence( aVCLEndColor, + xColorSpace )); + + uno::Sequence< uno::Sequence < double > > aColors(2); + uno::Sequence< double > aStops(2); + + if( rGradient.GetStyle() == GradientStyle::Axial ) + { + aStops.realloc(3); + aColors.realloc(3); + + aStops[0] = 0.0; + aStops[1] = 0.5; + aStops[2] = 1.0; + + aColors[0] = aEndColor; + aColors[1] = aStartColor; + aColors[2] = aEndColor; + } + else + { + aStops[0] = 0.0; + aStops[1] = 1.0; + + aColors[0] = aStartColor; + aColors[1] = aEndColor; + } + + const ::basegfx::B2DRectangle aBounds( + ::basegfx::utils::getRange(aDevicePoly) ); + const ::basegfx::B2DVector aOffset( + rGradient.GetOfsX() / 100.0, + rGradient.GetOfsY() / 100.0); + double fRotation( rGradient.GetAngle() * M_PI / 1800.0 ); + const double fBorder( rGradient.GetBorder() / 100.0 ); + + basegfx::B2DHomMatrix aRot90; + aRot90.rotate(M_PI_2); + + basegfx::ODFGradientInfo aGradInfo; + OUString aGradientService; + switch( rGradient.GetStyle() ) + { + case GradientStyle::Linear: + aGradInfo = basegfx::utils::createLinearODFGradientInfo( + aBounds, + nSteps, + fBorder, + fRotation); + // map ODF to svg gradient orientation - x + // instead of y direction + aGradInfo.setTextureTransform(aGradInfo.getTextureTransform() * aRot90); + aGradientService = "LinearGradient"; + break; + + case GradientStyle::Axial: + { + // Adapt the border so that it is suitable + // for the axial gradient. An axial + // gradient consists of two linear + // gradients. Each of those covers half + // of the total size. In order to + // compensate for the condensed display of + // the linear gradients, we have to + // enlarge the area taken up by the actual + // gradient (1-fBorder). After that we + // have to turn the result back into a + // border value, hence the second (left + // most 1-... + const double fAxialBorder (1-2*(1-fBorder)); + aGradInfo = basegfx::utils::createAxialODFGradientInfo( + aBounds, + nSteps, + fAxialBorder, + fRotation); + // map ODF to svg gradient orientation - x + // instead of y direction + aGradInfo.setTextureTransform(aGradInfo.getTextureTransform() * aRot90); + + // map ODF axial gradient to 3-stop linear + // gradient - shift left by 0.5 + basegfx::B2DHomMatrix aShift; + + aShift.translate(-0.5,0); + aGradInfo.setTextureTransform(aGradInfo.getTextureTransform() * aShift); + aGradientService = "LinearGradient"; + break; + } + + case GradientStyle::Radial: + aGradInfo = basegfx::utils::createRadialODFGradientInfo( + aBounds, + aOffset, + nSteps, + fBorder); + aGradientService = "EllipticalGradient"; + break; + + case GradientStyle::Elliptical: + aGradInfo = basegfx::utils::createEllipticalODFGradientInfo( + aBounds, + aOffset, + nSteps, + fBorder, + fRotation); + aGradientService = "EllipticalGradient"; + break; + + case GradientStyle::Square: + aGradInfo = basegfx::utils::createSquareODFGradientInfo( + aBounds, + aOffset, + nSteps, + fBorder, + fRotation); + aGradientService = "RectangularGradient"; + break; + + case GradientStyle::Rect: + aGradInfo = basegfx::utils::createRectangularODFGradientInfo( + aBounds, + aOffset, + nSteps, + fBorder, + fRotation); + aGradientService = "RectangularGradient"; + break; + + default: + ENSURE_OR_THROW( false, + "ImplRenderer::createGradientAction(): Unexpected gradient type" ); + break; + } + + ::basegfx::unotools::affineMatrixFromHomMatrix( aTexture.AffineTransform, + aGradInfo.getTextureTransform() ); + + uno::Sequence<uno::Any> args(comphelper::InitAnyPropertySequence( + { + {"Colors", uno::Any(aColors)}, + {"Stops", uno::Any(aStops)}, + {"AspectRatio", uno::Any(aGradInfo.getAspectRatio())}, + })); + aTexture.Gradient.set( + xFactory->createInstanceWithArguments(aGradientService, + args), + uno::UNO_QUERY); + if( aTexture.Gradient.is() ) + { + std::shared_ptr<Action> pPolyAction( + internal::PolyPolyActionFactory::createPolyPolyAction( + aDevicePoly, + rParms.mrCanvas, + rParms.mrStates.getState(), + aTexture ) ); + + if( pPolyAction ) + { + maActions.emplace_back( + pPolyAction, + rParms.mrCurrActionIndex ); + + rParms.mrCurrActionIndex += pPolyAction->getActionCount()-1; + } + + // done, using native gradients + return; + } + } + } + + // cannot currently use native canvas gradients, as a + // finite step size is given (this funny feature is not + // supported by the XCanvas API) + rParms.mrStates.pushState(PushFlags::ALL); + + if( !bIsPolygonRectangle ) + { + // only clip, if given polygon is not a rectangle in + // the first place (the gradient is always limited to + // the given bound rect) + updateClipping( + aDevicePoly, + rParms, + true ); + } + + GDIMetaFile aTmpMtf; + rParms.mrVDev.AddGradientActions( rPoly.GetBoundRect(), + rGradient, + aTmpMtf ); + + createActions( aTmpMtf, rParms, bSubsettableActions ); + + rParms.mrStates.popState(); + } + + uno::Reference< rendering::XCanvasFont > ImplRenderer::createFont( double& o_rFontRotation, + const vcl::Font& rFont, + const ActionFactoryParameters& rParms ) + { + rendering::FontRequest aFontRequest; + + if( rParms.mrParms.maFontName ) + aFontRequest.FontDescription.FamilyName = *rParms.mrParms.maFontName; + else + aFontRequest.FontDescription.FamilyName = rFont.GetFamilyName(); + + aFontRequest.FontDescription.StyleName = rFont.GetStyleName(); + + aFontRequest.FontDescription.IsSymbolFont = (rFont.GetCharSet() == RTL_TEXTENCODING_SYMBOL) ? util::TriState_YES : util::TriState_NO; + aFontRequest.FontDescription.IsVertical = rFont.IsVertical() ? util::TriState_YES : util::TriState_NO; + + // TODO(F2): improve vclenum->panose conversion + aFontRequest.FontDescription.FontDescription.Weight = + rParms.mrParms.maFontWeight ? + *rParms.mrParms.maFontWeight : + ::canvas::tools::numeric_cast<sal_Int8>( ::basegfx::fround( rFont.GetWeight() ) ); + aFontRequest.FontDescription.FontDescription.Letterform = + rParms.mrParms.maFontLetterForm ? + *rParms.mrParms.maFontLetterForm : + (rFont.GetItalic() == ITALIC_NONE) ? 0 : 9; + aFontRequest.FontDescription.FontDescription.Proportion = + (rFont.GetPitch() == PITCH_FIXED) + ? rendering::PanoseProportion::MONO_SPACED + : rendering::PanoseProportion::ANYTHING; + + LanguageType aLang = rFont.GetLanguage(); + aFontRequest.Locale = LanguageTag::convertToLocale( aLang, false); + + // setup state-local text transformation, + // if the font be rotated + const short nFontAngle( rFont.GetOrientation() ); + if( nFontAngle != 0 ) + { + // set to unity transform rotated by font angle + const double nAngle( nFontAngle * (F_PI / 1800.0) ); + o_rFontRotation = -nAngle; + } + else + { + o_rFontRotation = 0.0; + } + + geometry::Matrix2D aFontMatrix; + ::canvas::tools::setIdentityMatrix2D( aFontMatrix ); + + // TODO(F2): use correct scale direction, font + // height might be width or anything else + + // TODO(Q3): This code smells of programming by + // coincidence (the next two if statements) + + ::Size rFontSizeLog( rFont.GetFontSize() ); + + if (rFontSizeLog.Height() == 0) + { + // guess 16 pixel (as in VCL) + rFontSizeLog = ::Size(0, 16); + + // convert to target MapUnit if not pixels + rFontSizeLog = OutputDevice::LogicToLogic(rFontSizeLog, MapMode(MapUnit::MapPixel), rParms.mrVDev.GetMapMode()); + } + + const sal_Int32 nFontWidthLog = rFontSizeLog.Width(); + if( nFontWidthLog != 0 ) + { + vcl::Font aTestFont = rFont; + aTestFont.SetAverageFontWidth( 0 ); + sal_Int32 nNormalWidth = rParms.mrVDev.GetFontMetric( aTestFont ).GetAverageFontWidth(); + if( nNormalWidth != nFontWidthLog ) + if( nNormalWidth ) + aFontMatrix.m00 = static_cast<double>(nFontWidthLog) / nNormalWidth; + } + + // #i52608# apply map mode scale also to font matrix - an + // anisotrophic mapmode must be reflected in an + // anisotrophic font matrix scale. + const OutDevState& rState( rParms.mrStates.getState() ); + if( !::basegfx::fTools::equal( + rState.mapModeTransform.get(0,0), + rState.mapModeTransform.get(1,1)) ) + { + const double nScaleX( rState.mapModeTransform.get(0,0) ); + const double nScaleY( rState.mapModeTransform.get(1,1) ); + + // note: no reason to check for division by zero, we + // always have the value closer (or equal) to zero as + // the nominator. + if( fabs(nScaleX) < fabs(nScaleY) ) + aFontMatrix.m00 *= nScaleX / nScaleY; + else + aFontMatrix.m11 *= nScaleY / nScaleX; + } + aFontRequest.CellSize = (rState.mapModeTransform * vcl::unotools::b2DSizeFromSize(rFontSizeLog)).getY(); + + if (rFont.GetEmphasisMark() != FontEmphasisMark::NONE) + { + uno::Sequence< beans::PropertyValue > aProperties(1); + aProperties[0].Name = "EmphasisMark"; + aProperties[0].Value <<= sal_uInt32(rFont.GetEmphasisMark()); + return rParms.mrCanvas->getUNOCanvas()->createFont(aFontRequest, + aProperties, + aFontMatrix); + } + + return rParms.mrCanvas->getUNOCanvas()->createFont( aFontRequest, + uno::Sequence< beans::PropertyValue >(), + aFontMatrix ); + } + + // create text effects such as shadow/relief/embossed + void ImplRenderer::createTextAction( const ::Point& rStartPoint, + const OUString& rString, + int nIndex, + int nLength, + const long* pCharWidths, + const ActionFactoryParameters& rParms, + bool bSubsettableActions ) + { + ENSURE_OR_THROW( nIndex >= 0 && nLength <= rString.getLength() + nIndex, + "ImplRenderer::createTextWithEffectsAction(): Invalid text index" ); + + if( !nLength ) + return; // zero-length text, no visible output + + const OutDevState& rState( rParms.mrStates.getState() ); + + // TODO(F2): implement all text effects + // if( rState.textAlignment ); // TODO(F2): NYI + + ::Color aTextFillColor( COL_AUTO ); + ::Color aShadowColor( COL_AUTO ); + ::Color aReliefColor( COL_AUTO ); + ::Size aShadowOffset; + ::Size aReliefOffset; + + uno::Reference<rendering::XColorSpace> xColorSpace( + rParms.mrCanvas->getUNOCanvas()->getDevice()->getDeviceColorSpace() ); + + if( rState.isTextEffectShadowSet ) + { + // calculate shadow offset (similar to outdev3.cxx) + // TODO(F3): better match with outdev3.cxx + sal_Int32 nShadowOffset = static_cast<sal_Int32>(1.5 + ((rParms.mrVDev.GetFont().GetFontHeight()-24.0)/24.0)); + if( nShadowOffset < 1 ) + nShadowOffset = 1; + + aShadowOffset.setWidth( nShadowOffset ); + aShadowOffset.setHeight( nShadowOffset ); + + // determine shadow color (from outdev3.cxx) + ::Color aTextColor = vcl::unotools::doubleSequenceToColor( + rState.textColor, xColorSpace ); + bool bIsDark = (aTextColor == COL_BLACK) + || (aTextColor.GetLuminance() < 8); + + aShadowColor = bIsDark ? COL_LIGHTGRAY : COL_BLACK; + aShadowColor.SetTransparency( aTextColor.GetTransparency() ); + } + + if( rState.textReliefStyle != FontRelief::NONE ) + { + // calculate relief offset (similar to outdev3.cxx) + sal_Int32 nReliefOffset = rParms.mrVDev.PixelToLogic( Size( 1, 1 ) ).Height(); + nReliefOffset += nReliefOffset/2; + if( nReliefOffset < 1 ) + nReliefOffset = 1; + + if( rState.textReliefStyle == FontRelief::Engraved ) + nReliefOffset = -nReliefOffset; + + aReliefOffset.setWidth( nReliefOffset ); + aReliefOffset.setHeight( nReliefOffset ); + + // determine relief color (from outdev3.cxx) + ::Color aTextColor = vcl::unotools::doubleSequenceToColor( + rState.textColor, xColorSpace ); + + aReliefColor = COL_LIGHTGRAY; + + // we don't have an automatic color, so black is always + // drawn on white (literally copied from + // vcl/source/gdi/outdev3.cxx) + if( aTextColor == COL_BLACK ) + { + aTextColor = COL_WHITE; + rParms.mrStates.getState().textColor = + vcl::unotools::colorToDoubleSequence( + aTextColor, xColorSpace ); + } + + if( aTextColor == COL_WHITE ) + aReliefColor = COL_BLACK; + aReliefColor.SetTransparency( aTextColor.GetTransparency() ); + } + + if (rState.isTextFillColorSet) + aTextFillColor = vcl::unotools::doubleSequenceToColor(rState.textFillColor, xColorSpace); + + // create the actual text action + std::shared_ptr<Action> pTextAction( + TextActionFactory::createTextAction( + rStartPoint, + aReliefOffset, + aReliefColor, + aShadowOffset, + aShadowColor, + aTextFillColor, + rString, + nIndex, + nLength, + pCharWidths, + rParms.mrVDev, + rParms.mrCanvas, + rState, + rParms.mrParms, + bSubsettableActions ) ); + + std::shared_ptr<Action> pStrikeoutTextAction; + + if ( rState.textStrikeoutStyle == STRIKEOUT_X || rState.textStrikeoutStyle == STRIKEOUT_SLASH ) + { + long nWidth = rParms.mrVDev.GetTextWidth( rString,nIndex,nLength ); + + sal_Unicode pChars[4]; + if ( rState.textStrikeoutStyle == STRIKEOUT_X ) + pChars[0] = 'X'; + else + pChars[0] = '/'; + pChars[3]=pChars[2]=pChars[1]=pChars[0]; + + long nStrikeoutWidth = (rParms.mrVDev.GetTextWidth( + OUString(pChars, SAL_N_ELEMENTS(pChars))) + 2) / 4; + + if( nStrikeoutWidth <= 0 ) + nStrikeoutWidth = 1; + + long nMaxWidth = nStrikeoutWidth/2; + if ( nMaxWidth < 2 ) + nMaxWidth = 2; + nMaxWidth += nWidth + 1; + + long nFullStrikeoutWidth = 0; + OUStringBuffer aStrikeoutText; + while( (nFullStrikeoutWidth+=nStrikeoutWidth ) < nMaxWidth+1 ) + aStrikeoutText.append(pChars[0]); + + sal_Int32 nLen = aStrikeoutText.getLength(); + + if( nLen ) + { + long nInterval = ( nWidth - nStrikeoutWidth * nLen ) / nLen; + nStrikeoutWidth += nInterval; + long* pStrikeoutCharWidths = new long[nLen]; + + for ( int i = 0;i<nLen; i++) + { + pStrikeoutCharWidths[i] = nStrikeoutWidth; + } + + for ( int i = 1;i< nLen; i++ ) + { + pStrikeoutCharWidths[ i ] += pStrikeoutCharWidths[ i-1 ]; + } + + pStrikeoutTextAction = + TextActionFactory::createTextAction( + rStartPoint, + aReliefOffset, + aReliefColor, + aShadowOffset, + aShadowColor, + aTextFillColor, + aStrikeoutText.makeStringAndClear(), + 0/*nStartPos*/, + nLen, + pStrikeoutCharWidths, + rParms.mrVDev, + rParms.mrCanvas, + rState, + rParms.mrParms, + bSubsettableActions ) ; + } + } + + if( !pTextAction ) + return; + + maActions.emplace_back( + pTextAction, + rParms.mrCurrActionIndex ); + + if ( pStrikeoutTextAction ) + { + maActions.emplace_back( + pStrikeoutTextAction, + rParms.mrCurrActionIndex ); + } + + rParms.mrCurrActionIndex += pTextAction->getActionCount()-1; + } + + void ImplRenderer::updateClipping( const ::basegfx::B2DPolyPolygon& rClipPoly, + const ActionFactoryParameters& rParms, + bool bIntersect ) + { + ::cppcanvas::internal::OutDevState& rState( rParms.mrStates.getState() ); + + const bool bEmptyClipRect( rState.clipRect.IsEmpty() ); + const bool bEmptyClipPoly( rState.clip.count() == 0 ); + + ENSURE_OR_THROW( bEmptyClipPoly || bEmptyClipRect, + "ImplRenderer::updateClipping(): Clip rect and polygon are both set!" ); + + if( !bIntersect || + (bEmptyClipRect && bEmptyClipPoly) ) + { + rState.clip = rClipPoly; + } + else + { + if( !bEmptyClipRect ) + { + // TODO(P3): Use Liang-Barsky polygon clip here, + // after all, one object is just a rectangle! + + // convert rect to polygon beforehand, must revert + // to general polygon clipping here. + ::tools::Rectangle aRect = rState.clipRect; + // #121100# VCL rectangular clips always + // include one more pixel to the right + // and the bottom + aRect.AdjustRight(1); + aRect.AdjustBottom(1); + rState.clip = ::basegfx::B2DPolyPolygon( + ::basegfx::utils::createPolygonFromRect( + vcl::unotools::b2DRectangleFromRectangle(aRect) ) ); + } + + // AW: Simplified + rState.clip = basegfx::utils::clipPolyPolygonOnPolyPolygon( + rClipPoly, rState.clip, true, false); + } + + // by now, our clip resides in the OutDevState::clip + // poly-polygon. + rState.clipRect.SetEmpty(); + + if( rState.clip.count() == 0 ) + { + if( rState.clipRect.IsEmpty() ) + { + rState.xClipPoly.clear(); + } + else + { + ::tools::Rectangle aRect = rState.clipRect; + // #121100# VCL rectangular clips + // always include one more pixel to + // the right and the bottom + aRect.AdjustRight(1); + aRect.AdjustBottom(1); + rState.xClipPoly = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( + rParms.mrCanvas->getUNOCanvas()->getDevice(), + ::basegfx::B2DPolyPolygon( + ::basegfx::utils::createPolygonFromRect( + vcl::unotools::b2DRectangleFromRectangle(aRect) ) ) ); + } + } + else + { + rState.xClipPoly = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( + rParms.mrCanvas->getUNOCanvas()->getDevice(), + rState.clip ); + } + } + + void ImplRenderer::updateClipping( const ::tools::Rectangle& rClipRect, + const ActionFactoryParameters& rParms, + bool bIntersect ) + { + ::cppcanvas::internal::OutDevState& rState( rParms.mrStates.getState() ); + + const bool bEmptyClipRect( rState.clipRect.IsEmpty() ); + const bool bEmptyClipPoly( rState.clip.count() == 0 ); + + ENSURE_OR_THROW( bEmptyClipPoly || bEmptyClipRect, + "ImplRenderer::updateClipping(): Clip rect and polygon are both set!" ); + + if( !bIntersect || + (bEmptyClipRect && bEmptyClipPoly) ) + { + rState.clipRect = rClipRect; + rState.clip.clear(); + } + else if( bEmptyClipPoly ) + { + rState.clipRect.Intersection( rClipRect ); + rState.clip.clear(); + } + else + { + // TODO(P3): Handle a fourth case here, when all clip + // polygons are rectangular, once B2DMultiRange's + // sweep line implementation is done. + + // general case: convert to polygon and clip + + + // convert rect to polygon beforehand, must revert + // to general polygon clipping here. + ::basegfx::B2DPolyPolygon aClipPoly( + ::basegfx::utils::createPolygonFromRect( + vcl::unotools::b2DRectangleFromRectangle(rClipRect) ) ); + + rState.clipRect.SetEmpty(); + + // AW: Simplified + rState.clip = basegfx::utils::clipPolyPolygonOnPolyPolygon( + aClipPoly, rState.clip, true, false); + } + + if( rState.clip.count() == 0 ) + { + if( rState.clipRect.IsEmpty() ) + { + rState.xClipPoly.clear(); + } + else + { + // #121100# VCL rectangular clips + // always include one more pixel to + // the right and the bottom + ::tools::Rectangle aRect = rState.clipRect; + aRect.AdjustRight(1); + aRect.AdjustBottom(1); + rState.xClipPoly = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( + rParms.mrCanvas->getUNOCanvas()->getDevice(), + ::basegfx::B2DPolyPolygon( + ::basegfx::utils::createPolygonFromRect( + vcl::unotools::b2DRectangleFromRectangle(aRect) ) ) ); + } + } + else + { + rState.xClipPoly = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( + rParms.mrCanvas->getUNOCanvas()->getDevice(), + rState.clip ); + } + } + + void ImplRenderer::createActions( GDIMetaFile& rMtf, + const ActionFactoryParameters& rFactoryParms, + bool bSubsettableActions ) + { + /* TODO(P2): interpret mtf-comments + ================================ + + - gradient fillings (do that via comments) + + - think about mapping. _If_ we do everything in logical + coordinates (which would solve the probs for stroke + widths and text offsets), then we would have to + recalc scaling for every drawing operation. This is + because the outdev map mode might change at any time. + Also keep in mind, that, although we've double precision + float arithmetic now, different offsets might still + generate different roundings (aka + 'OutputDevice::SetPixelOffset()) + + */ + + // alias common parameters + VectorOfOutDevStates& rStates(rFactoryParms.mrStates); + const CanvasSharedPtr& rCanvas(rFactoryParms.mrCanvas); + ::VirtualDevice& rVDev(rFactoryParms.mrVDev); + const Parameters& rParms(rFactoryParms.mrParms); + sal_Int32& io_rCurrActionIndex(rFactoryParms.mrCurrActionIndex); + + + // Loop over every metaaction + // ========================== + MetaAction* pCurrAct; + + // TODO(P1): think about caching + for( pCurrAct=rMtf.FirstAction(); + pCurrAct; + pCurrAct = rMtf.NextAction() ) + { + // execute every action, to keep VDev state up-to-date + // currently used only for + // - the map mode + // - the line/fill color when processing a MetaActionType::Transparent + // - SetFont to process font metric specific actions + pCurrAct->Execute( &rVDev ); + + SAL_INFO("cppcanvas.emf", "MTF\trecord type: 0x" << static_cast<sal_uInt16>(pCurrAct->GetType()) << " (" << static_cast<sal_uInt16>(pCurrAct->GetType()) << ")"); + + switch( pCurrAct->GetType() ) + { + + + // In the first part of this monster-switch, we + // handle all state-changing meta actions. These + // are all handled locally. + + + case MetaActionType::PUSH: + { + MetaPushAction* pPushAction = static_cast<MetaPushAction*>(pCurrAct); + rStates.pushState(pPushAction->GetFlags()); + } + break; + + case MetaActionType::POP: + rStates.popState(); + break; + + case MetaActionType::TEXTLANGUAGE: + case MetaActionType::REFPOINT: + // handled via pCurrAct->Execute( &rVDev ) + break; + + case MetaActionType::MAPMODE: + // modify current mapModeTransformation + // transformation, such that subsequent + // coordinates map correctly + tools::calcLogic2PixelAffineTransform( rStates.getState().mapModeTransform, + rVDev ); + break; + + // monitor clip regions, to assemble clip polygon on our own + case MetaActionType::CLIPREGION: + { + MetaClipRegionAction* pClipAction = static_cast<MetaClipRegionAction*>(pCurrAct); + + if( !pClipAction->IsClipping() ) + { + // clear clipping + rStates.getState().clip.clear(); + } + else + { + if( !pClipAction->GetRegion().HasPolyPolygonOrB2DPolyPolygon() ) + { + SAL_INFO( "cppcanvas.emf", "ImplRenderer::createActions(): non-polygonal clip " + "region encountered, falling back to bounding box!" ); + + // #121806# explicitly kept integer + ::tools::Rectangle aClipRect( + rVDev.LogicToPixel( + pClipAction->GetRegion().GetBoundRect() ) ); + + // intersect current clip with given rect + updateClipping( + aClipRect, + rFactoryParms, + false ); + } + else + { + // set new clip polygon (don't intersect + // with old one, just set it) + + // #121806# explicitly kept integer + basegfx::B2DPolyPolygon aPolyPolygon(pClipAction->GetRegion().GetAsB2DPolyPolygon()); + + aPolyPolygon.transform(rVDev.GetViewTransformation()); + updateClipping( + aPolyPolygon, + rFactoryParms, + false ); + } + } + + break; + } + + case MetaActionType::ISECTRECTCLIPREGION: + { + MetaISectRectClipRegionAction* pClipAction = static_cast<MetaISectRectClipRegionAction*>(pCurrAct); + + // #121806# explicitly kept integer + ::tools::Rectangle aClipRect( + rVDev.LogicToPixel( pClipAction->GetRect() ) ); + + // intersect current clip with given rect + updateClipping( + aClipRect, + rFactoryParms, + true ); + + break; + } + + case MetaActionType::ISECTREGIONCLIPREGION: + { + MetaISectRegionClipRegionAction* pClipAction = static_cast<MetaISectRegionClipRegionAction*>(pCurrAct); + + if( !pClipAction->GetRegion().HasPolyPolygonOrB2DPolyPolygon() ) + { + SAL_INFO( "cppcanvas.emf", "ImplRenderer::createActions(): non-polygonal clip " + "region encountered, falling back to bounding box!" ); + + // #121806# explicitly kept integer + ::tools::Rectangle aClipRect( + rVDev.LogicToPixel( pClipAction->GetRegion().GetBoundRect() ) ); + + // intersect current clip with given rect + updateClipping( + aClipRect, + rFactoryParms, + true ); + } + else + { + // intersect current clip with given clip polygon + + // #121806# explicitly kept integer + basegfx::B2DPolyPolygon aPolyPolygon(pClipAction->GetRegion().GetAsB2DPolyPolygon()); + + aPolyPolygon.transform(rVDev.GetViewTransformation()); + updateClipping( + aPolyPolygon, + rFactoryParms, + true ); + } + + break; + } + + case MetaActionType::MOVECLIPREGION: + // TODO(F2): NYI + break; + + case MetaActionType::LINECOLOR: + if( !rParms.maLineColor ) + { + setStateColor( static_cast<MetaLineColorAction*>(pCurrAct), + rStates.getState().isLineColorSet, + rStates.getState().lineColor, + rCanvas ); + } + else + { + // #120994# Do switch on/off LineColor, even when an overriding one is set + bool bSetting(static_cast<MetaLineColorAction*>(pCurrAct)->IsSetting()); + + rStates.getState().isLineColorSet = bSetting; + } + break; + + case MetaActionType::FILLCOLOR: + if( !rParms.maFillColor ) + { + setStateColor( static_cast<MetaFillColorAction*>(pCurrAct), + rStates.getState().isFillColorSet, + rStates.getState().fillColor, + rCanvas ); + } + else + { + // #120994# Do switch on/off FillColor, even when an overriding one is set + bool bSetting(static_cast<MetaFillColorAction*>(pCurrAct)->IsSetting()); + + rStates.getState().isFillColorSet = bSetting; + } + break; + + case MetaActionType::TEXTCOLOR: + { + if( !rParms.maTextColor ) + { + // Text color is set unconditionally, thus, no + // use of setStateColor here + ::Color aColor( static_cast<MetaTextColorAction*>(pCurrAct)->GetColor() ); + + // force alpha part of color to + // opaque. transparent painting is done + // explicitly via MetaActionType::Transparent + aColor.SetTransparency(0); + + rStates.getState().textColor = + vcl::unotools::colorToDoubleSequence( + aColor, + rCanvas->getUNOCanvas()->getDevice()->getDeviceColorSpace() ); + } + } + break; + + case MetaActionType::TEXTFILLCOLOR: + if( !rParms.maTextColor ) + { + setStateColor( static_cast<MetaTextFillColorAction*>(pCurrAct), + rStates.getState().isTextFillColorSet, + rStates.getState().textFillColor, + rCanvas ); + } + else + { + // #120994# Do switch on/off TextFillColor, even when an overriding one is set + bool bSetting(static_cast<MetaTextFillColorAction*>(pCurrAct)->IsSetting()); + + rStates.getState().isTextFillColorSet = bSetting; + } + break; + + case MetaActionType::TEXTLINECOLOR: + if( !rParms.maTextColor ) + { + setStateColor( static_cast<MetaTextLineColorAction*>(pCurrAct), + rStates.getState().isTextLineColorSet, + rStates.getState().textLineColor, + rCanvas ); + } + else + { + // #120994# Do switch on/off TextLineColor, even when an overriding one is set + bool bSetting(static_cast<MetaTextLineColorAction*>(pCurrAct)->IsSetting()); + + rStates.getState().isTextLineColorSet = bSetting; + } + break; + + case MetaActionType::OVERLINECOLOR: + if( !rParms.maTextColor ) + { + setStateColor( static_cast<MetaOverlineColorAction*>(pCurrAct), + rStates.getState().isTextOverlineColorSet, + rStates.getState().textOverlineColor, + rCanvas ); + } + else + { + bool bSetting(static_cast<MetaOverlineColorAction*>(pCurrAct)->IsSetting()); + + rStates.getState().isTextOverlineColorSet = bSetting; + } + break; + + case MetaActionType::TEXTALIGN: + { + ::cppcanvas::internal::OutDevState& rState = rStates.getState(); + const TextAlign eTextAlign( static_cast<MetaTextAlignAction*>(pCurrAct)->GetTextAlign() ); + + rState.textReferencePoint = eTextAlign; + } + break; + + case MetaActionType::FONT: + { + ::cppcanvas::internal::OutDevState& rState = rStates.getState(); + const vcl::Font& rFont( static_cast<MetaFontAction*>(pCurrAct)->GetFont() ); + + rState.xFont = createFont( rState.fontRotation, + rFont, + rFactoryParms ); + + // TODO(Q2): define and use appropriate enumeration types + rState.textReliefStyle = rFont.GetRelief(); + rState.textOverlineStyle = static_cast<sal_Int8>(rFont.GetOverline()); + rState.textUnderlineStyle = rParms.maFontUnderline ? + (*rParms.maFontUnderline ? sal_Int8(LINESTYLE_SINGLE) : sal_Int8(LINESTYLE_NONE)) : + static_cast<sal_Int8>(rFont.GetUnderline()); + rState.textStrikeoutStyle = static_cast<sal_Int8>(rFont.GetStrikeout()); + rState.textEmphasisMark = rFont.GetEmphasisMark(); + rState.isTextEffectShadowSet = rFont.IsShadow(); + rState.isTextWordUnderlineSet = rFont.IsWordLineMode(); + rState.isTextOutlineModeSet = rFont.IsOutline(); + } + break; + + case MetaActionType::RASTEROP: + // TODO(F2): NYI + break; + + case MetaActionType::LAYOUTMODE: + { + // TODO(F2): A lot is missing here + ComplexTextLayoutFlags nLayoutMode = static_cast<MetaLayoutModeAction*>(pCurrAct)->GetLayoutMode(); + ::cppcanvas::internal::OutDevState& rState = rStates.getState(); + + ComplexTextLayoutFlags nBidiLayoutMode = nLayoutMode & (ComplexTextLayoutFlags::BiDiRtl|ComplexTextLayoutFlags::BiDiStrong); + if( nBidiLayoutMode == ComplexTextLayoutFlags::Default) + rState.textDirection = rendering::TextDirection::WEAK_LEFT_TO_RIGHT; + else if( nBidiLayoutMode == ComplexTextLayoutFlags::BiDiStrong) + rState.textDirection = rendering::TextDirection::STRONG_LEFT_TO_RIGHT; + else if( nBidiLayoutMode == ComplexTextLayoutFlags::BiDiRtl) + rState.textDirection = rendering::TextDirection::WEAK_RIGHT_TO_LEFT; + else if( nBidiLayoutMode == (ComplexTextLayoutFlags::BiDiRtl | ComplexTextLayoutFlags::BiDiStrong)) + rState.textDirection = rendering::TextDirection::STRONG_RIGHT_TO_LEFT; + + rState.textAlignment = 0; // TODO(F2): rendering::TextAlignment::LEFT_ALIGNED; + if( (nLayoutMode & (ComplexTextLayoutFlags::BiDiRtl | ComplexTextLayoutFlags::TextOriginRight) ) + && !(nLayoutMode & ComplexTextLayoutFlags::TextOriginLeft ) ) + { + rState.textAlignment = 1; // TODO(F2): rendering::TextAlignment::RIGHT_ALIGNED; + } + } + break; + + + // In the second part of this monster-switch, we + // handle all recursing meta actions. These are the + // ones generating a metafile by themselves, which is + // then processed by recursively calling this method. + + + case MetaActionType::GRADIENT: + { + MetaGradientAction* pGradAct = static_cast<MetaGradientAction*>(pCurrAct); + createGradientAction( ::tools::Polygon( pGradAct->GetRect() ), + pGradAct->GetGradient(), + rFactoryParms, + true, + bSubsettableActions ); + } + break; + + case MetaActionType::HATCH: + { + // TODO(F2): use native Canvas hatches here + GDIMetaFile aTmpMtf; + + rVDev.AddHatchActions( static_cast<MetaHatchAction*>(pCurrAct)->GetPolyPolygon(), + static_cast<MetaHatchAction*>(pCurrAct)->GetHatch(), + aTmpMtf ); + createActions( aTmpMtf, rFactoryParms, + bSubsettableActions ); + } + break; + + case MetaActionType::EPS: + { + MetaEPSAction* pAct = static_cast<MetaEPSAction*>(pCurrAct); + const GDIMetaFile& rSubstitute = pAct->GetSubstitute(); + + // #121806# explicitly kept integer + const Size aMtfSize( rSubstitute.GetPrefSize() ); + const Size aMtfSizePixPre( rVDev.LogicToPixel( aMtfSize, + rSubstitute.GetPrefMapMode() ) ); + + // #i44110# correct null-sized output - there + // are metafiles which have zero size in at + // least one dimension + + // Remark the 1L cannot be replaced, that would cause max to compare long/int + const Size aMtfSizePix( std::max( aMtfSizePixPre.Width(), 1L ), + std::max( aMtfSizePixPre.Height(), 1L ) ); + + // Setup local transform, such that the + // metafile renders itself into the given + // output rectangle + rStates.pushState(PushFlags::ALL); + + rVDev.Push(); + rVDev.SetMapMode( rSubstitute.GetPrefMapMode() ); + + const ::Point& rPos( rVDev.LogicToPixel( pAct->GetPoint() ) ); + const ::Size& rSize( rVDev.LogicToPixel( pAct->GetSize() ) ); + + rStates.getState().transform.translate( rPos.X(), + rPos.Y() ); + rStates.getState().transform.scale( static_cast<double>(rSize.Width()) / aMtfSizePix.Width(), + static_cast<double>(rSize.Height()) / aMtfSizePix.Height() ); + + createActions( const_cast<GDIMetaFile&>(pAct->GetSubstitute()), + rFactoryParms, + bSubsettableActions ); + + rVDev.Pop(); + rStates.popState(); + } + break; + + // handle metafile comments, to retrieve + // meta-information for gradients, fills and + // strokes. May skip actions, and may recurse. + case MetaActionType::COMMENT: + { + MetaCommentAction* pAct = static_cast<MetaCommentAction*>(pCurrAct); + + // Handle gradients + if (pAct->GetComment().equalsIgnoreAsciiCase("XGRAD_SEQ_BEGIN")) + { + MetaGradientExAction* pGradAction = nullptr; + bool bDone( false ); + while( !bDone ) + { + pCurrAct=rMtf.NextAction(); + if (!pCurrAct) + break; + switch( pCurrAct->GetType() ) + { + // extract gradient info + case MetaActionType::GRADIENTEX: + pGradAction = static_cast<MetaGradientExAction*>(pCurrAct); + break; + + // skip broken-down rendering, output gradient when sequence is ended + case MetaActionType::COMMENT: + if( static_cast<MetaCommentAction*>(pCurrAct)->GetComment().equalsIgnoreAsciiCase("XGRAD_SEQ_END") ) + { + bDone = true; + + if( pGradAction ) + { + createGradientAction( pGradAction->GetPolyPolygon(), + pGradAction->GetGradient(), + rFactoryParms, + false, + bSubsettableActions ); + } + } + break; + default: break; + } + } + } + // TODO(P2): Handle drawing layer strokes, via + // XPATHSTROKE_SEQ_BEGIN comment + + // Handle drawing layer fills + else if( pAct->GetComment() == "XPATHFILL_SEQ_BEGIN" ) + { + const sal_uInt8* pData = pAct->GetData(); + if ( pData ) + { + SvMemoryStream aMemStm( const_cast<sal_uInt8 *>(pData), pAct->GetDataSize(), StreamMode::READ ); + + SvtGraphicFill aFill; + ReadSvtGraphicFill( aMemStm, aFill ); + + // TODO(P2): Also handle gradients and + // hatches like this + + // only evaluate comment for pure + // bitmap fills. If a transparency + // gradient is involved (denoted by + // the FloatTransparent action), take + // the normal meta actions. + if( aFill.getFillType() == SvtGraphicFill::fillTexture && + !isActionContained( rMtf, + "XPATHFILL_SEQ_END", + MetaActionType::FLOATTRANSPARENT ) ) + { + rendering::Texture aTexture; + + // TODO(F1): the SvtGraphicFill + // can also transport metafiles + // here, handle that case, too + Graphic aGraphic; + aFill.getGraphic( aGraphic ); + + BitmapEx aBmpEx( aGraphic.GetBitmapEx() ); + const ::Size aBmpSize( aBmpEx.GetSizePixel() ); + + ::SvtGraphicFill::Transform aTransform; + aFill.getTransform( aTransform ); + + ::basegfx::B2DHomMatrix aMatrix; + + // convert to basegfx matrix + aMatrix.set(0,0, aTransform.matrix[ 0 ] ); + aMatrix.set(0,1, aTransform.matrix[ 1 ] ); + aMatrix.set(0,2, aTransform.matrix[ 2 ] ); + aMatrix.set(1,0, aTransform.matrix[ 3 ] ); + aMatrix.set(1,1, aTransform.matrix[ 4 ] ); + aMatrix.set(1,2, aTransform.matrix[ 5 ] ); + + ::basegfx::B2DHomMatrix aScale; + aScale.scale( aBmpSize.Width(), + aBmpSize.Height() ); + + // post-multiply with the bitmap + // size (XCanvas' texture assumes + // the given bitmap to be + // normalized to [0,1]x[0,1] + // rectangle) + aMatrix = aMatrix * aScale; + + // pre-multiply with the + // logic-to-pixel scale factor + // (the metafile comment works in + // logical coordinates). + ::basegfx::B2DHomMatrix aLogic2PixelTransform; + aMatrix *= tools::calcLogic2PixelLinearTransform( aLogic2PixelTransform, + rVDev ); + + ::basegfx::unotools::affineMatrixFromHomMatrix( + aTexture.AffineTransform, + aMatrix ); + + aTexture.Alpha = 1.0 - aFill.getTransparency(); + aTexture.Bitmap = vcl::unotools::xBitmapFromBitmapEx( aBmpEx ); + if( aFill.isTiling() ) + { + aTexture.RepeatModeX = rendering::TexturingMode::REPEAT; + aTexture.RepeatModeY = rendering::TexturingMode::REPEAT; + } + else + { + aTexture.RepeatModeX = rendering::TexturingMode::NONE; + aTexture.RepeatModeY = rendering::TexturingMode::NONE; + } + + ::tools::PolyPolygon aPath; + aFill.getPath( aPath ); + + ::basegfx::B2DPolyPolygon aPoly( aPath.getB2DPolyPolygon() ); + aPoly.transform( rStates.getState().mapModeTransform ); + std::shared_ptr<Action> pPolyAction( + internal::PolyPolyActionFactory::createPolyPolyAction( + aPoly, + rCanvas, + rStates.getState(), + aTexture ) ); + + if( pPolyAction ) + { + maActions.emplace_back( + pPolyAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pPolyAction->getActionCount()-1; + } + + // skip broken-down render output + skipContent( rMtf, + "XPATHFILL_SEQ_END", + io_rCurrActionIndex ); + } + } + } + // Handle drawing layer fills + else if( pAct->GetComment() == "EMF_PLUS" ) { + SAL_WARN ("cppcanvas.emf", "EMF+ code was refactored and removed"); + } else if( pAct->GetComment() == "EMF_PLUS_HEADER_INFO" ) { + SAL_INFO ("cppcanvas.emf", "EMF+ passed to canvas mtf renderer - header info, size: " << pAct->GetDataSize ()); + + SvMemoryStream rMF (const_cast<sal_uInt8 *>(pAct->GetData ()), pAct->GetDataSize (), StreamMode::READ); + + rMF.ReadInt32( nFrameLeft ).ReadInt32( nFrameTop ).ReadInt32( nFrameRight ).ReadInt32( nFrameBottom ); + SAL_INFO ("cppcanvas.emf", "EMF+ picture frame: " << nFrameLeft << "," << nFrameTop << " - " << nFrameRight << "," << nFrameBottom); + rMF.ReadInt32( nPixX ).ReadInt32( nPixY ).ReadInt32( nMmX ).ReadInt32( nMmY ); + SAL_INFO ("cppcanvas.emf", "EMF+ ref device pixel size: " << nPixX << "x" << nPixY << " mm size: " << nMmX << "x" << nMmY); + + ReadXForm( rMF, aBaseTransform ); + //aWorldTransform.Set (aBaseTransform); + } + } + break; + + + // In the third part of this monster-switch, we + // handle all 'acting' meta actions. These are all + // processed by constructing function objects for + // them, which will later ease caching. + + + case MetaActionType::POINT: + { + const OutDevState& rState( rStates.getState() ); + if( rState.lineColor.hasElements() ) + { + std::shared_ptr<Action> pPointAction( + internal::PointActionFactory::createPointAction( + rState.mapModeTransform * vcl::unotools::b2DPointFromPoint( + static_cast<MetaPointAction*>(pCurrAct)->GetPoint() ), + rCanvas, + rState ) ); + + if( pPointAction ) + { + maActions.emplace_back( + pPointAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pPointAction->getActionCount()-1; + } + } + } + break; + + case MetaActionType::PIXEL: + { + const OutDevState& rState( rStates.getState() ); + if( rState.lineColor.hasElements() ) + { + std::shared_ptr<Action> pPointAction( + internal::PointActionFactory::createPointAction( + rState.mapModeTransform * vcl::unotools::b2DPointFromPoint( + static_cast<MetaPixelAction*>(pCurrAct)->GetPoint() ), + rCanvas, + rState, + static_cast<MetaPixelAction*>(pCurrAct)->GetColor() ) ); + + if( pPointAction ) + { + maActions.emplace_back( + pPointAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pPointAction->getActionCount()-1; + } + } + } + break; + + case MetaActionType::LINE: + { + const OutDevState& rState( rStates.getState() ); + if( rState.lineColor.hasElements() ) + { + MetaLineAction* pLineAct = static_cast<MetaLineAction*>(pCurrAct); + + const LineInfo& rLineInfo( pLineAct->GetLineInfo() ); + + const ::basegfx::B2DPoint aStartPoint( + rState.mapModeTransform * vcl::unotools::b2DPointFromPoint( pLineAct->GetStartPoint() )); + const ::basegfx::B2DPoint aEndPoint( + rState.mapModeTransform * vcl::unotools::b2DPointFromPoint( pLineAct->GetEndPoint() )); + + std::shared_ptr<Action> pLineAction; + + if( rLineInfo.IsDefault() ) + { + // plain hair line + pLineAction = + internal::LineActionFactory::createLineAction( + aStartPoint, + aEndPoint, + rCanvas, + rState ); + + if( pLineAction ) + { + maActions.emplace_back( + pLineAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pLineAction->getActionCount()-1; + } + } + else if( LineStyle::NONE != rLineInfo.GetStyle() ) + { + // 'thick' line + rendering::StrokeAttributes aStrokeAttributes; + + setupStrokeAttributes( aStrokeAttributes, + rFactoryParms, + rLineInfo ); + + // XCanvas can only stroke polygons, + // not simple lines - thus, handle + // this case via the polypolygon + // action + ::basegfx::B2DPolygon aPoly; + aPoly.append( aStartPoint ); + aPoly.append( aEndPoint ); + pLineAction = + internal::PolyPolyActionFactory::createPolyPolyAction( + ::basegfx::B2DPolyPolygon( aPoly ), + rCanvas, rState, aStrokeAttributes ); + + if( pLineAction ) + { + maActions.emplace_back( + pLineAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pLineAction->getActionCount()-1; + } + } + // else: line style is default + // (i.e. invisible), don't generate action + } + } + break; + + case MetaActionType::RECT: + { + const ::tools::Rectangle& rRect( + static_cast<MetaRectAction*>(pCurrAct)->GetRect() ); + + if( rRect.IsEmpty() ) + break; + + const OutDevState& rState( rStates.getState() ); + const ::basegfx::B2DPoint aTopLeftPixel( + rState.mapModeTransform * vcl::unotools::b2DPointFromPoint( rRect.TopLeft() ) ); + const ::basegfx::B2DPoint aBottomRightPixel( + rState.mapModeTransform * vcl::unotools::b2DPointFromPoint( rRect.BottomRight() ) + + // #121100# OutputDevice::DrawRect() fills + // rectangles Apple-like, i.e. with one + // additional pixel to the right and bottom. + ::basegfx::B2DPoint(1,1) ); + + createFillAndStroke( ::basegfx::utils::createPolygonFromRect( + ::basegfx::B2DRange( aTopLeftPixel, + aBottomRightPixel )), + rFactoryParms ); + break; + } + + case MetaActionType::ROUNDRECT: + { + const ::tools::Rectangle& rRect( + static_cast<MetaRoundRectAction*>(pCurrAct)->GetRect()); + + if( rRect.IsEmpty() ) + break; + + ::basegfx::B2DPolygon aPoly( + ::basegfx::utils::createPolygonFromRect( + ::basegfx::B2DRange( + vcl::unotools::b2DPointFromPoint( rRect.TopLeft() ), + vcl::unotools::b2DPointFromPoint( rRect.BottomRight() ) + + ::basegfx::B2DPoint(1,1) ), + static_cast<double>(static_cast<MetaRoundRectAction*>(pCurrAct)->GetHorzRound()) / rRect.GetWidth(), + static_cast<double>(static_cast<MetaRoundRectAction*>(pCurrAct)->GetVertRound()) / rRect.GetHeight() ) ); + aPoly.transform( rStates.getState().mapModeTransform ); + + createFillAndStroke( aPoly, + rFactoryParms ); + } + break; + + case MetaActionType::ELLIPSE: + { + const ::tools::Rectangle& rRect( + static_cast<MetaEllipseAction*>(pCurrAct)->GetRect() ); + + if( rRect.IsEmpty() ) + break; + + const ::basegfx::B2DRange aRange( + vcl::unotools::b2DPointFromPoint( rRect.TopLeft() ), + vcl::unotools::b2DPointFromPoint( rRect.BottomRight() ) + + ::basegfx::B2DPoint(1,1) ); + + ::basegfx::B2DPolygon aPoly( + ::basegfx::utils::createPolygonFromEllipse( + aRange.getCenter(), + aRange.getWidth() / 2, // divide by 2 since createPolygonFromEllipse + aRange.getHeight() / 2 )); // expects the radius and NOT the diameter! + aPoly.transform( rStates.getState().mapModeTransform ); + + createFillAndStroke( aPoly, + rFactoryParms ); + } + break; + + case MetaActionType::ARC: + { + // TODO(F1): Missing basegfx functionality. Mind empty rects! + const ::tools::Polygon aToolsPoly( static_cast<MetaArcAction*>(pCurrAct)->GetRect(), + static_cast<MetaArcAction*>(pCurrAct)->GetStartPoint(), + static_cast<MetaArcAction*>(pCurrAct)->GetEndPoint(), PolyStyle::Arc ); + ::basegfx::B2DPolygon aPoly( aToolsPoly.getB2DPolygon() ); + aPoly.transform( rStates.getState().mapModeTransform ); + + createFillAndStroke( aPoly, + rFactoryParms ); + } + break; + + case MetaActionType::PIE: + { + // TODO(F1): Missing basegfx functionality. Mind empty rects! + const ::tools::Polygon aToolsPoly( static_cast<MetaPieAction*>(pCurrAct)->GetRect(), + static_cast<MetaPieAction*>(pCurrAct)->GetStartPoint(), + static_cast<MetaPieAction*>(pCurrAct)->GetEndPoint(), PolyStyle::Pie ); + ::basegfx::B2DPolygon aPoly( aToolsPoly.getB2DPolygon() ); + aPoly.transform( rStates.getState().mapModeTransform ); + + createFillAndStroke( aPoly, + rFactoryParms ); + } + break; + + case MetaActionType::CHORD: + { + // TODO(F1): Missing basegfx functionality. Mind empty rects! + const ::tools::Polygon aToolsPoly( static_cast<MetaChordAction*>(pCurrAct)->GetRect(), + static_cast<MetaChordAction*>(pCurrAct)->GetStartPoint(), + static_cast<MetaChordAction*>(pCurrAct)->GetEndPoint(), PolyStyle::Chord ); + ::basegfx::B2DPolygon aPoly( aToolsPoly.getB2DPolygon() ); + aPoly.transform( rStates.getState().mapModeTransform ); + + createFillAndStroke( aPoly, + rFactoryParms ); + } + break; + + case MetaActionType::POLYLINE: + { + const OutDevState& rState( rStates.getState() ); + if( rState.lineColor.hasElements() || + rState.fillColor.hasElements() ) + { + MetaPolyLineAction* pPolyLineAct = static_cast<MetaPolyLineAction*>(pCurrAct); + + const LineInfo& rLineInfo( pPolyLineAct->GetLineInfo() ); + ::basegfx::B2DPolygon aPoly( pPolyLineAct->GetPolygon().getB2DPolygon() ); + aPoly.transform( rState.mapModeTransform ); + + std::shared_ptr<Action> pLineAction; + + if( rLineInfo.IsDefault() ) + { + // plain hair line polygon + pLineAction = + internal::PolyPolyActionFactory::createLinePolyPolyAction( + ::basegfx::B2DPolyPolygon(aPoly), + rCanvas, + rState ); + + if( pLineAction ) + { + maActions.emplace_back( + pLineAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pLineAction->getActionCount()-1; + } + } + else if( LineStyle::NONE != rLineInfo.GetStyle() ) + { + // 'thick' line polygon + rendering::StrokeAttributes aStrokeAttributes; + + setupStrokeAttributes( aStrokeAttributes, + rFactoryParms, + rLineInfo ); + + pLineAction = + internal::PolyPolyActionFactory::createPolyPolyAction( + ::basegfx::B2DPolyPolygon(aPoly), + rCanvas, + rState, + aStrokeAttributes ) ; + + if( pLineAction ) + { + maActions.emplace_back( + pLineAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pLineAction->getActionCount()-1; + } + } + // else: line style is default + // (i.e. invisible), don't generate action + } + } + break; + + case MetaActionType::POLYGON: + { + ::basegfx::B2DPolygon aPoly( static_cast<MetaPolygonAction*>(pCurrAct)->GetPolygon().getB2DPolygon() ); + aPoly.transform( rStates.getState().mapModeTransform ); + createFillAndStroke( aPoly, + rFactoryParms ); + } + break; + + case MetaActionType::POLYPOLYGON: + { + ::basegfx::B2DPolyPolygon aPoly( static_cast<MetaPolyPolygonAction*>(pCurrAct)->GetPolyPolygon().getB2DPolyPolygon() ); + aPoly.transform( rStates.getState().mapModeTransform ); + createFillAndStroke( aPoly, + rFactoryParms ); + } + break; + + case MetaActionType::BMP: + { + MetaBmpAction* pAct = static_cast<MetaBmpAction*>(pCurrAct); + + std::shared_ptr<Action> pBmpAction( + internal::BitmapActionFactory::createBitmapAction( + BitmapEx(pAct->GetBitmap()), + rStates.getState().mapModeTransform * + vcl::unotools::b2DPointFromPoint( pAct->GetPoint() ), + rCanvas, + rStates.getState() ) ); + + if( pBmpAction ) + { + maActions.emplace_back( + pBmpAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pBmpAction->getActionCount()-1; + } + } + break; + + case MetaActionType::BMPSCALE: + { + MetaBmpScaleAction* pAct = static_cast<MetaBmpScaleAction*>(pCurrAct); + + std::shared_ptr<Action> pBmpAction( + internal::BitmapActionFactory::createBitmapAction( + BitmapEx(pAct->GetBitmap()), + rStates.getState().mapModeTransform * + vcl::unotools::b2DPointFromPoint( pAct->GetPoint() ), + rStates.getState().mapModeTransform * + vcl::unotools::b2DSizeFromSize( pAct->GetSize() ), + rCanvas, + rStates.getState() ) ); + + if( pBmpAction ) + { + maActions.emplace_back( + pBmpAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pBmpAction->getActionCount()-1; + } + } + break; + + case MetaActionType::BMPSCALEPART: + { + MetaBmpScalePartAction* pAct = static_cast<MetaBmpScalePartAction*>(pCurrAct); + + // crop bitmap to given source rectangle (no + // need to copy and convert the whole bitmap) + ::Bitmap aBmp( pAct->GetBitmap() ); + const ::tools::Rectangle aCropRect( pAct->GetSrcPoint(), + pAct->GetSrcSize() ); + aBmp.Crop( aCropRect ); + + std::shared_ptr<Action> pBmpAction( + internal::BitmapActionFactory::createBitmapAction( + BitmapEx(aBmp), + rStates.getState().mapModeTransform * + vcl::unotools::b2DPointFromPoint( pAct->GetDestPoint() ), + rStates.getState().mapModeTransform * + vcl::unotools::b2DSizeFromSize( pAct->GetDestSize() ), + rCanvas, + rStates.getState() ) ); + + if( pBmpAction ) + { + maActions.emplace_back( + pBmpAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pBmpAction->getActionCount()-1; + } + } + break; + + case MetaActionType::BMPEX: + { + MetaBmpExAction* pAct = static_cast<MetaBmpExAction*>(pCurrAct); + + std::shared_ptr<Action> pBmpAction( + internal::BitmapActionFactory::createBitmapAction( + pAct->GetBitmapEx(), + rStates.getState().mapModeTransform * + vcl::unotools::b2DPointFromPoint( pAct->GetPoint() ), + rCanvas, + rStates.getState() ) ); + + if( pBmpAction ) + { + maActions.emplace_back( + pBmpAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pBmpAction->getActionCount()-1; + } + } + break; + + case MetaActionType::BMPEXSCALE: + { + MetaBmpExScaleAction* pAct = static_cast<MetaBmpExScaleAction*>(pCurrAct); + + std::shared_ptr<Action> pBmpAction( + internal::BitmapActionFactory::createBitmapAction( + pAct->GetBitmapEx(), + rStates.getState().mapModeTransform * + vcl::unotools::b2DPointFromPoint( pAct->GetPoint() ), + rStates.getState().mapModeTransform * + vcl::unotools::b2DSizeFromSize( pAct->GetSize() ), + rCanvas, + rStates.getState() ) ); + + if( pBmpAction ) + { + maActions.emplace_back( + pBmpAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pBmpAction->getActionCount()-1; + } + } + break; + + case MetaActionType::BMPEXSCALEPART: + { + MetaBmpExScalePartAction* pAct = static_cast<MetaBmpExScalePartAction*>(pCurrAct); + + // crop bitmap to given source rectangle (no + // need to copy and convert the whole bitmap) + BitmapEx aBmp( pAct->GetBitmapEx() ); + const ::tools::Rectangle aCropRect( pAct->GetSrcPoint(), + pAct->GetSrcSize() ); + aBmp.Crop( aCropRect ); + + std::shared_ptr<Action> pBmpAction( + internal::BitmapActionFactory::createBitmapAction( + aBmp, + rStates.getState().mapModeTransform * + vcl::unotools::b2DPointFromPoint( pAct->GetDestPoint() ), + rStates.getState().mapModeTransform * + vcl::unotools::b2DSizeFromSize( pAct->GetDestSize() ), + rCanvas, + rStates.getState() ) ); + + if( pBmpAction ) + { + maActions.emplace_back( + pBmpAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pBmpAction->getActionCount()-1; + } + } + break; + + case MetaActionType::MASK: + { + MetaMaskAction* pAct = static_cast<MetaMaskAction*>(pCurrAct); + + // create masked BitmapEx right here, as the + // canvas does not provide equivalent + // functionality + BitmapEx aBmp( createMaskBmpEx( pAct->GetBitmap(), + pAct->GetColor() )); + + std::shared_ptr<Action> pBmpAction( + internal::BitmapActionFactory::createBitmapAction( + aBmp, + rStates.getState().mapModeTransform * + vcl::unotools::b2DPointFromPoint( pAct->GetPoint() ), + rCanvas, + rStates.getState() ) ); + + if( pBmpAction ) + { + maActions.emplace_back( + pBmpAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pBmpAction->getActionCount()-1; + } + } + break; + + case MetaActionType::MASKSCALE: + { + MetaMaskScaleAction* pAct = static_cast<MetaMaskScaleAction*>(pCurrAct); + + // create masked BitmapEx right here, as the + // canvas does not provide equivalent + // functionality + BitmapEx aBmp( createMaskBmpEx( pAct->GetBitmap(), + pAct->GetColor() )); + + std::shared_ptr<Action> pBmpAction( + internal::BitmapActionFactory::createBitmapAction( + aBmp, + rStates.getState().mapModeTransform * + vcl::unotools::b2DPointFromPoint( pAct->GetPoint() ), + rStates.getState().mapModeTransform * + vcl::unotools::b2DSizeFromSize( pAct->GetSize() ), + rCanvas, + rStates.getState() ) ); + + if( pBmpAction ) + { + maActions.emplace_back( + pBmpAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pBmpAction->getActionCount()-1; + } + } + break; + + case MetaActionType::MASKSCALEPART: + { + MetaMaskScalePartAction* pAct = static_cast<MetaMaskScalePartAction*>(pCurrAct); + + // create masked BitmapEx right here, as the + // canvas does not provide equivalent + // functionality + BitmapEx aBmp( createMaskBmpEx( pAct->GetBitmap(), + pAct->GetColor() )); + + // crop bitmap to given source rectangle (no + // need to copy and convert the whole bitmap) + const ::tools::Rectangle aCropRect( pAct->GetSrcPoint(), + pAct->GetSrcSize() ); + aBmp.Crop( aCropRect ); + + std::shared_ptr<Action> pBmpAction( + internal::BitmapActionFactory::createBitmapAction( + aBmp, + rStates.getState().mapModeTransform * + vcl::unotools::b2DPointFromPoint( pAct->GetDestPoint() ), + rStates.getState().mapModeTransform * + vcl::unotools::b2DSizeFromSize( pAct->GetDestSize() ), + rCanvas, + rStates.getState() ) ); + + if( pBmpAction ) + { + maActions.emplace_back( + pBmpAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pBmpAction->getActionCount()-1; + } + } + break; + + case MetaActionType::GRADIENTEX: + // TODO(F1): use native Canvas gradients here + // action is ignored here, because redundant to MetaActionType::GRADIENT + break; + + case MetaActionType::WALLPAPER: + // TODO(F2): NYI + break; + + case MetaActionType::Transparent: + { + const OutDevState& rState( rStates.getState() ); + if( rState.lineColor.hasElements() || + rState.fillColor.hasElements() ) + { + MetaTransparentAction* pAct = static_cast<MetaTransparentAction*>(pCurrAct); + ::basegfx::B2DPolyPolygon aPoly( pAct->GetPolyPolygon().getB2DPolyPolygon() ); + aPoly.transform( rState.mapModeTransform ); + + std::shared_ptr<Action> pPolyAction( + internal::PolyPolyActionFactory::createPolyPolyAction( + aPoly, + rCanvas, + rState, + pAct->GetTransparence() ) ); + + if( pPolyAction ) + { + maActions.emplace_back( + pPolyAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pPolyAction->getActionCount()-1; + } + } + } + break; + + case MetaActionType::FLOATTRANSPARENT: + { + MetaFloatTransparentAction* pAct = static_cast<MetaFloatTransparentAction*>(pCurrAct); + + internal::MtfAutoPtr pMtf( + new ::GDIMetaFile( pAct->GetGDIMetaFile() ) ); + + // TODO(P2): Use native canvas gradients here (saves a lot of UNO calls) + internal::GradientAutoPtr pGradient( + new Gradient( pAct->GetGradient() ) ); + + DBG_TESTSOLARMUTEX(); + + std::shared_ptr<Action> pFloatTransAction( + internal::TransparencyGroupActionFactory::createTransparencyGroupAction( + std::move(pMtf), + std::move(pGradient), + rStates.getState().mapModeTransform * + vcl::unotools::b2DPointFromPoint( pAct->GetPoint() ), + rStates.getState().mapModeTransform * + vcl::unotools::b2DSizeFromSize( pAct->GetSize() ), + rCanvas, + rStates.getState() ) ); + + if( pFloatTransAction ) + { + maActions.emplace_back( + pFloatTransAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pFloatTransAction->getActionCount()-1; + } + } + break; + + case MetaActionType::TEXT: + { + MetaTextAction* pAct = static_cast<MetaTextAction*>(pCurrAct); + OUString sText = pAct->GetText(); + + if (rVDev.GetDigitLanguage()) + sText = convertToLocalizedNumerals(sText, rVDev.GetDigitLanguage()); + + const sal_Int32 nLen = std::min(pAct->GetLen(), pAct->GetText().getLength() - pAct->GetIndex()); + + createTextAction( + pAct->GetPoint(), + sText, + pAct->GetIndex(), + nLen, + nullptr, + rFactoryParms, + bSubsettableActions ); + } + break; + + case MetaActionType::TEXTARRAY: + { + MetaTextArrayAction* pAct = static_cast<MetaTextArrayAction*>(pCurrAct); + OUString sText = pAct->GetText(); + + if (rVDev.GetDigitLanguage()) + sText = convertToLocalizedNumerals(sText, rVDev.GetDigitLanguage()); + + const sal_Int32 nLen = std::min(pAct->GetLen(), pAct->GetText().getLength() - pAct->GetIndex()); + + createTextAction( + pAct->GetPoint(), + sText, + pAct->GetIndex(), + nLen, + pAct->GetDXArray(), + rFactoryParms, + bSubsettableActions ); + } + break; + + case MetaActionType::TEXTLINE: + { + MetaTextLineAction* pAct = static_cast<MetaTextLineAction*>(pCurrAct); + + const OutDevState& rState( rStates.getState() ); + const ::Size aBaselineOffset( tools::getBaselineOffset( rState, + rVDev ) ); + const ::basegfx::B2DSize aSize( rState.mapModeTransform * + ::basegfx::B2DSize(pAct->GetWidth(), + 0 )); + + std::shared_ptr<Action> pPolyAction( + PolyPolyActionFactory::createPolyPolyAction( + tools::createTextLinesPolyPolygon( + rState.mapModeTransform * + ::basegfx::B2DPoint( + vcl::unotools::b2DPointFromPoint(pAct->GetStartPoint()) + + vcl::unotools::b2DSizeFromSize(aBaselineOffset)), + aSize.getX(), + tools::createTextLineInfo( rVDev, + rState )), + rCanvas, + rState ) ); + + if( pPolyAction ) + { + maActions.emplace_back( + pPolyAction, + io_rCurrActionIndex ); + + io_rCurrActionIndex += pPolyAction->getActionCount()-1; + } + } + break; + + case MetaActionType::TEXTRECT: + { + MetaTextRectAction* pAct = static_cast<MetaTextRectAction*>(pCurrAct); + + rStates.pushState(PushFlags::ALL); + + // use the VDev to break up the text rect + // action into readily formatted lines + GDIMetaFile aTmpMtf; + rVDev.AddTextRectActions( pAct->GetRect(), + pAct->GetText(), + pAct->GetStyle(), + aTmpMtf ); + + createActions( aTmpMtf, + rFactoryParms, + bSubsettableActions ); + + rStates.popState(); + + break; + } + + case MetaActionType::STRETCHTEXT: + { + MetaStretchTextAction* pAct = static_cast<MetaStretchTextAction*>(pCurrAct); + OUString sText = pAct->GetText(); + + if (rVDev.GetDigitLanguage()) + sText = convertToLocalizedNumerals(sText, rVDev.GetDigitLanguage()); + + const sal_Int32 nLen = std::min(pAct->GetLen(), pAct->GetText().getLength() - pAct->GetIndex()); + + // #i70897# Nothing to do, actually... + if( nLen == 0 ) + break; + + // have to fit the text into the given + // width. This is achieved by internally + // generating a DX array, and uniformly + // distributing the excess/insufficient width + // to every logical character. + std::unique_ptr< long []> pDXArray( new long[nLen] ); + + rVDev.GetTextArray( pAct->GetText(), pDXArray.get(), + pAct->GetIndex(), pAct->GetLen() ); + + const sal_Int32 nWidthDifference( pAct->GetWidth() - pDXArray[ nLen-1 ] ); + + // Last entry of pDXArray contains total width of the text + long* p = pDXArray.get(); + for (sal_Int32 i = 1; i <= nLen; ++i) + { + // calc ratio for every array entry, to + // distribute rounding errors 'evenly' + // across the characters. Note that each + // entry represents the 'end' position of + // the corresponding character, thus, we + // let i run from 1 to nLen. + *p++ += static_cast<long>(i)*nWidthDifference/nLen; + } + + createTextAction( + pAct->GetPoint(), + sText, + pAct->GetIndex(), + nLen, + pDXArray.get(), + rFactoryParms, + bSubsettableActions ); + } + break; + + default: + SAL_WARN( "cppcanvas.emf", "Unknown meta action type encountered" ); + break; + } + + // increment action index (each mtf action counts _at + // least_ one. Some count for more, therefore, + // io_rCurrActionIndex is sometimes incremented by + // pAct->getActionCount()-1 above, the -1 being the + // correction for the unconditional increment here). + ++io_rCurrActionIndex; + } + } + + + namespace + { + class ActionRenderer + { + public: + explicit ActionRenderer( const ::basegfx::B2DHomMatrix& rTransformation ) : + maTransformation( rTransformation ), + mbRet( true ) + { + } + + bool result() const + { + return mbRet; + } + + void operator()( const ::cppcanvas::internal::ImplRenderer::MtfAction& rAction ) + { + // ANDing the result. We want to fail if at least + // one action failed. + mbRet &= rAction.mpAction->render( maTransformation ); + } + + void operator()( const ::cppcanvas::internal::ImplRenderer::MtfAction& rAction, + const Action::Subset& rSubset ) + { + // ANDing the result. We want to fail if at least + // one action failed. + mbRet &= rAction.mpAction->renderSubset( maTransformation, + rSubset ); + } + + private: + ::basegfx::B2DHomMatrix maTransformation; + bool mbRet; + }; + + class AreaQuery + { + public: + explicit AreaQuery( const ::basegfx::B2DHomMatrix& rTransformation ) : + maTransformation( rTransformation ), + maBounds() + { + } + + static bool result() + { + return true; // nothing can fail here + } + + void operator()( const ::cppcanvas::internal::ImplRenderer::MtfAction& rAction ) + { + maBounds.expand( rAction.mpAction->getBounds( maTransformation ) ); + } + + void operator()( const ::cppcanvas::internal::ImplRenderer::MtfAction& rAction, + const Action::Subset& rSubset ) + { + maBounds.expand( rAction.mpAction->getBounds( maTransformation, + rSubset ) ); + } + + const ::basegfx::B2DRange& getBounds() const + { + return maBounds; + } + + private: + ::basegfx::B2DHomMatrix maTransformation; + ::basegfx::B2DRange maBounds; + }; + + // Doing that via inline class. Compilers tend to not inline free + // functions. + struct UpperBoundActionIndexComparator + { + bool operator()( const ::cppcanvas::internal::ImplRenderer::MtfAction& rLHS, + const ::cppcanvas::internal::ImplRenderer::MtfAction& rRHS ) + { + const sal_Int32 nLHSCount( rLHS.mpAction ? + rLHS.mpAction->getActionCount() : 0 ); + const sal_Int32 nRHSCount( rRHS.mpAction ? + rRHS.mpAction->getActionCount() : 0 ); + + // compare end of action range, to have an action selected + // by lower_bound even if the requested index points in + // the middle of the action's range + return rLHS.mnOrigIndex + nLHSCount < rRHS.mnOrigIndex + nRHSCount; + } + }; + + /** Algorithm to apply given functor to a subset range + + @tpl Functor + + Functor to call for each element of the subset + range. Must provide the following method signatures: + bool result() (returning false if operation failed) + + */ + template< typename Functor > bool + forSubsetRange( Functor& rFunctor, + ImplRenderer::ActionVector::const_iterator aRangeBegin, + const ImplRenderer::ActionVector::const_iterator& aRangeEnd, + sal_Int32 nStartIndex, + sal_Int32 nEndIndex, + const ImplRenderer::ActionVector::const_iterator& rEnd ) + { + if( aRangeBegin == aRangeEnd ) + { + // only a single action. Setup subset, and call functor + Action::Subset aSubset; + aSubset.mnSubsetBegin = std::max( sal_Int32( 0 ), + nStartIndex - aRangeBegin->mnOrigIndex ); + aSubset.mnSubsetEnd = std::min( aRangeBegin->mpAction->getActionCount(), + nEndIndex - aRangeBegin->mnOrigIndex ); + + ENSURE_OR_RETURN_FALSE( aSubset.mnSubsetBegin >= 0 && aSubset.mnSubsetEnd >= 0, + "ImplRenderer::forSubsetRange(): Invalid indices" ); + + rFunctor( *aRangeBegin, aSubset ); + } + else + { + // more than one action. + + // render partial first, full intermediate, and + // partial last action + Action::Subset aSubset; + aSubset.mnSubsetBegin = std::max( sal_Int32( 0 ), + nStartIndex - aRangeBegin->mnOrigIndex ); + aSubset.mnSubsetEnd = aRangeBegin->mpAction->getActionCount(); + + ENSURE_OR_RETURN_FALSE( aSubset.mnSubsetBegin >= 0 && aSubset.mnSubsetEnd >= 0, + "ImplRenderer::forSubsetRange(): Invalid indices" ); + + rFunctor( *aRangeBegin, aSubset ); + + // first action rendered, skip to next + ++aRangeBegin; + + // render full middle actions + while( aRangeBegin != aRangeEnd ) + rFunctor( *aRangeBegin++ ); + + if( aRangeEnd == rEnd || + aRangeEnd->mnOrigIndex > nEndIndex ) + { + // aRangeEnd denotes end of action vector, + + // or + + // nEndIndex references something _after_ + // aRangeBegin, but _before_ aRangeEnd + + // either way: no partial action left + return rFunctor.result(); + } + + aSubset.mnSubsetBegin = 0; + aSubset.mnSubsetEnd = nEndIndex - aRangeEnd->mnOrigIndex; + + ENSURE_OR_RETURN_FALSE(aSubset.mnSubsetEnd >= 0, + "ImplRenderer::forSubsetRange(): Invalid indices" ); + + rFunctor( *aRangeEnd, aSubset ); + } + + return rFunctor.result(); + } + } + + bool ImplRenderer::getSubsetIndices( sal_Int32& io_rStartIndex, + sal_Int32& io_rEndIndex, + ActionVector::const_iterator& o_rRangeBegin, + ActionVector::const_iterator& o_rRangeEnd ) const + { + ENSURE_OR_RETURN_FALSE( io_rStartIndex<=io_rEndIndex, + "ImplRenderer::getSubsetIndices(): invalid action range" ); + + ENSURE_OR_RETURN_FALSE( !maActions.empty(), + "ImplRenderer::getSubsetIndices(): no actions to render" ); + + const sal_Int32 nMinActionIndex( maActions.front().mnOrigIndex ); + const sal_Int32 nMaxActionIndex( maActions.back().mnOrigIndex + + maActions.back().mpAction->getActionCount() ); + + // clip given range to permissible values (there might be + // ranges before and behind the valid indices) + io_rStartIndex = std::max( nMinActionIndex, + io_rStartIndex ); + io_rEndIndex = std::min( nMaxActionIndex, + io_rEndIndex ); + + if( io_rStartIndex == io_rEndIndex || + io_rStartIndex > io_rEndIndex ) + { + // empty range, don't render anything. The second + // condition e.g. happens if the requested range lies + // fully before or behind the valid action indices. + return false; + } + + + const ActionVector::const_iterator aBegin( maActions.begin() ); + const ActionVector::const_iterator aEnd( maActions.end() ); + + + // find start and end action + // ========================= + o_rRangeBegin = std::lower_bound( aBegin, aEnd, + MtfAction( std::shared_ptr<Action>(), io_rStartIndex ), + UpperBoundActionIndexComparator() ); + o_rRangeEnd = std::lower_bound( aBegin, aEnd, + MtfAction( std::shared_ptr<Action>(), io_rEndIndex ), + UpperBoundActionIndexComparator() ); + return true; + } + + + // Public methods + + + ImplRenderer::ImplRenderer( const CanvasSharedPtr& rCanvas, + const GDIMetaFile& rMtf, + const Parameters& rParams ) + : CanvasGraphicHelper(rCanvas) + , maActions() + , nFrameLeft(0) + , nFrameTop(0) + , nFrameRight(0) + , nFrameBottom(0) + , nPixX(0) + , nPixY(0) + , nMmX(0) + , nMmY(0) + { + SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::ImplRenderer::ImplRenderer(mtf)" ); + + OSL_ENSURE( rCanvas.get() != nullptr && rCanvas->getUNOCanvas().is(), + "ImplRenderer::ImplRenderer(): Invalid canvas" ); + OSL_ENSURE( rCanvas->getUNOCanvas()->getDevice().is(), + "ImplRenderer::ImplRenderer(): Invalid graphic device" ); + + // make sure canvas and graphic device are valid; action + // creation don't check that every time + if( rCanvas.get() == nullptr || + !rCanvas->getUNOCanvas().is() || + !rCanvas->getUNOCanvas()->getDevice().is() ) + { + // leave actions empty + return; + } + + VectorOfOutDevStates aStateStack; + + ScopedVclPtrInstance< VirtualDevice > aVDev; + aVDev->EnableOutput( false ); + + // Setup VDev for state tracking and mapping + // ========================================= + + aVDev->SetMapMode( rMtf.GetPrefMapMode() ); + + const Size aMtfSize( rMtf.GetPrefSize() ); + const Size aMtfSizePixPre( aVDev->LogicToPixel( aMtfSize, + rMtf.GetPrefMapMode() ) ); + + // #i44110# correct null-sized output - there are shapes + // which have zero size in at least one dimension + // Remark the 1L cannot be replaced, that would cause max to compare long/int + const Size aMtfSizePix( std::max( aMtfSizePixPre.Width(), 1L ), + std::max( aMtfSizePixPre.Height(), 1L ) ); + + sal_Int32 nCurrActions(0); + ActionFactoryParameters aParms(aStateStack, + rCanvas, + *aVDev, + rParams, + nCurrActions ); + + // init state stack + aStateStack.clearStateStack(); + + // Setup local state, such that the metafile renders + // itself into a one-by-one square at the origin for + // identity view and render transformations + aStateStack.getState().transform.scale( 1.0 / aMtfSizePix.Width(), + 1.0 / aMtfSizePix.Height() ); + + tools::calcLogic2PixelAffineTransform( aStateStack.getState().mapModeTransform, + *aVDev ); + + { + ::cppcanvas::internal::OutDevState& rState = aStateStack.getState(); + // setup default text color to black + rState.textColor = + rState.textFillColor = + rState.textOverlineColor = + rState.textLineColor = tools::intSRGBAToDoubleSequence( 0x000000FF ); + } + + // apply overrides from the Parameters struct + if( rParams.maFillColor ) + { + ::cppcanvas::internal::OutDevState& rState = aStateStack.getState(); + rState.isFillColorSet = true; + rState.fillColor = tools::intSRGBAToDoubleSequence( *rParams.maFillColor ); + } + if( rParams.maLineColor ) + { + ::cppcanvas::internal::OutDevState& rState = aStateStack.getState(); + rState.isLineColorSet = true; + rState.lineColor = tools::intSRGBAToDoubleSequence( *rParams.maLineColor ); + } + if( rParams.maTextColor ) + { + ::cppcanvas::internal::OutDevState& rState = aStateStack.getState(); + rState.isTextFillColorSet = true; + rState.isTextOverlineColorSet = true; + rState.isTextLineColorSet = true; + rState.textColor = + rState.textFillColor = + rState.textOverlineColor = + rState.textLineColor = tools::intSRGBAToDoubleSequence( *rParams.maTextColor ); + } + if( rParams.maFontName || + rParams.maFontWeight || + rParams.maFontLetterForm || + rParams.maFontUnderline ) + { + ::cppcanvas::internal::OutDevState& rState = aStateStack.getState(); + + rState.xFont = createFont( rState.fontRotation, + vcl::Font(), // default font + aParms ); + } + + /* EMF+ */ + createActions( const_cast<GDIMetaFile&>(rMtf), // HACK(Q2): + // we're + // changing + // the + // current + // action + // in + // createActions! + aParms, + true // TODO(P1): make subsettability configurable + ); + } + + ImplRenderer::~ImplRenderer() + { + } + + bool ImplRenderer::drawSubset( sal_Int32 nStartIndex, + sal_Int32 nEndIndex ) const + { + SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::ImplRenderer::drawSubset()" ); + + ActionVector::const_iterator aRangeBegin; + ActionVector::const_iterator aRangeEnd; + + try + { + if( !getSubsetIndices( nStartIndex, nEndIndex, + aRangeBegin, aRangeEnd ) ) + return true; // nothing to render (but _that_ was successful) + + // now, aRangeBegin references the action in which the + // subset rendering must start, and aRangeEnd references + // the action in which the subset rendering must end (it + // might also end right at the start of the referenced + // action, such that zero of that action needs to be + // rendered). + + + // render subset of actions + // ======================== + + ::basegfx::B2DHomMatrix aMatrix; + ::canvas::tools::getRenderStateTransform( aMatrix, + getRenderState() ); + + ActionRenderer aRenderer( aMatrix ); + + return forSubsetRange( aRenderer, + aRangeBegin, + aRangeEnd, + nStartIndex, + nEndIndex, + maActions.end() ); + } + catch( uno::Exception& ) + { + DBG_UNHANDLED_EXCEPTION("cppcanvas.emf"); + // convert error to return value + return false; + } + } + + ::basegfx::B2DRange ImplRenderer::getSubsetArea( sal_Int32 nStartIndex, + sal_Int32 nEndIndex ) const + { + SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::ImplRenderer::getSubsetArea()" ); + + ActionVector::const_iterator aRangeBegin; + ActionVector::const_iterator aRangeEnd; + + if( !getSubsetIndices( nStartIndex, nEndIndex, + aRangeBegin, aRangeEnd ) ) + return ::basegfx::B2DRange(); // nothing to render -> empty range + + // now, aRangeBegin references the action in which the + // subset querying must start, and aRangeEnd references + // the action in which the subset querying must end (it + // might also end right at the start of the referenced + // action, such that zero of that action needs to be + // queried). + + + // query bounds for subset of actions + // ================================== + + ::basegfx::B2DHomMatrix aMatrix; + ::canvas::tools::getRenderStateTransform( aMatrix, + getRenderState() ); + + AreaQuery aQuery( aMatrix ); + forSubsetRange( aQuery, + aRangeBegin, + aRangeEnd, + nStartIndex, + nEndIndex, + maActions.end() ); + + return aQuery.getBounds(); + } + + bool ImplRenderer::draw() const + { + SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::ImplRenderer::draw()" ); + + ::basegfx::B2DHomMatrix aMatrix; + ::canvas::tools::getRenderStateTransform( aMatrix, + getRenderState() ); + + try + { + return std::for_each( maActions.begin(), maActions.end(), ActionRenderer( aMatrix ) ).result(); + } + catch( uno::Exception& ) + { + DBG_UNHANDLED_EXCEPTION( "cppcanvas.emf"); + return false; + } + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |