266 lines
11 KiB
C++
266 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#pragma once
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#include <drawinglayer/processor2d/baseprocessor2d.hxx>
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#include <basegfx/color/bcolormodifier.hxx>
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#include <tools/long.hxx>
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#include <sal/config.h>
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#include <com/sun/star/awt/XGraphics.hpp>
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// cairo-specific
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#include <cairo.h>
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namespace drawinglayer::primitive2d
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{
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class PolyPolygonColorPrimitive2D;
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class PolygonHairlinePrimitive2D;
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class BitmapPrimitive2D;
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class UnifiedTransparencePrimitive2D;
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class BackgroundColorPrimitive2D;
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class TransparencePrimitive2D;
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class InvertPrimitive2D;
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class MaskPrimitive2D;
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class ModifiedColorPrimitive2D;
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class TransformPrimitive2D;
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class PointArrayPrimitive2D;
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class MarkerArrayPrimitive2D;
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class PolygonStrokePrimitive2D;
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class LineRectanglePrimitive2D;
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class FilledRectanglePrimitive2D;
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class SingleLinePrimitive2D;
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class FillGradientPrimitive2D;
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class PolyPolygonRGBAGradientPrimitive2D;
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class FillGraphicPrimitive2D;
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class PolyPolygonRGBAPrimitive2D;
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class PolyPolygonAlphaGradientPrimitive2D;
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class BitmapAlphaPrimitive2D;
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class ControlPrimitive2D;
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class TextSimplePortionPrimitive2D;
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class TextDecoratedPortionPrimitive2D;
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class TextLayouterDevice;
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class SvgLinearGradientPrimitive2D;
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class SvgRadialGradientPrimitive2D;
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class SvgGradientHelper;
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}
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namespace basegfx
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{
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class B2DPolyPolygon;
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}
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namespace basegfx::utils
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{
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class B2DHomMatrixBufferedOnDemandDecompose;
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}
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class BitmapEx;
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class SalLayout;
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namespace drawinglayer::processor2d
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{
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class UNLESS_MERGELIBS(DRAWINGLAYER_DLLPUBLIC) CairoPixelProcessor2D final : public BaseProcessor2D
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{
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// the modifiedColorPrimitive stack
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basegfx::BColorModifierStack maBColorModifierStack;
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// cairo_surface_t created when initial clip from the constructor
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// parameters is requested, or by the constructor that creates an
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// owned surface
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cairo_surface_t* mpOwnedSurface;
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// cairo specific data, the render target
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cairo_t* mpRT;
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// get text render config settings
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bool mbRenderSimpleTextDirect;
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bool mbRenderDecoratedTextDirect;
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// recursion counter for CairoPixelProcessor2D::processMaskPrimitive2D,
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// see comment there
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sal_uInt16 mnClipRecursionCount;
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// calculated result of if we are in outsideCairoCoordinateLimits mode
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bool mbCairoCoordinateLimitWorkaroundActive;
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// the XGraphics which may be set using setXGraphics()
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com::sun::star::uno::Reference<com::sun::star::awt::XGraphics> maXGraphics;
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// helpers for direct paints
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void paintPolyPoylgonRGBA(const basegfx::B2DPolyPolygon& rPolyPolygon,
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const basegfx::BColor& rColor, double fTransparency = 0.0);
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void processPolygonHairlinePrimitive2D(
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const primitive2d::PolygonHairlinePrimitive2D& rPolygonHairlinePrimitive2D);
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void processPolyPolygonColorPrimitive2D(
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const primitive2d::PolyPolygonColorPrimitive2D& rPolyPolygonColorPrimitive2D);
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void processBitmapPrimitive2D(const primitive2d::BitmapPrimitive2D& rBitmapCandidate);
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void
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processTransparencePrimitive2D(const primitive2d::TransparencePrimitive2D& rTransCandidate);
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void processInvertPrimitive2D(const primitive2d::InvertPrimitive2D& rTransCandidate);
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void processUnifiedTransparencePrimitive2D(
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const primitive2d::UnifiedTransparencePrimitive2D& rTransCandidate);
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void processMaskPrimitive2D(const primitive2d::MaskPrimitive2D& rMaskCandidate);
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void processModifiedColorPrimitive2D(
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const primitive2d::ModifiedColorPrimitive2D& rModifiedCandidate);
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void processTransformPrimitive2D(const primitive2d::TransformPrimitive2D& rTransformCandidate);
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void
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processPointArrayPrimitive2D(const primitive2d::PointArrayPrimitive2D& rPointArrayCandidate);
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void
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processMarkerArrayPrimitive2D(const primitive2d::MarkerArrayPrimitive2D& rMarkerArrayCandidate);
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void processBackgroundColorPrimitive2D(
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const primitive2d::BackgroundColorPrimitive2D& rBackgroundColorCandidate);
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void processPolygonStrokePrimitive2D(
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const primitive2d::PolygonStrokePrimitive2D& rPolygonStrokeCandidate);
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void processLineRectanglePrimitive2D(
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const primitive2d::LineRectanglePrimitive2D& rLineRectanglePrimitive2D);
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void processFilledRectanglePrimitive2D(
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const primitive2d::FilledRectanglePrimitive2D& rFilledRectanglePrimitive2D);
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void
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processSingleLinePrimitive2D(const primitive2d::SingleLinePrimitive2D& rSingleLinePrimitive2D);
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void processFillGradientPrimitive2D(
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const primitive2d::FillGradientPrimitive2D& rFillGradientPrimitive2D);
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void processFillGraphicPrimitive2D(
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const primitive2d::FillGraphicPrimitive2D& rFillGraphicPrimitive2D);
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void processPolyPolygonRGBAPrimitive2D(
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const primitive2d::PolyPolygonRGBAPrimitive2D& rPolyPolygonRGBAPrimitive2D);
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void processPolyPolygonAlphaGradientPrimitive2D(
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const primitive2d::PolyPolygonAlphaGradientPrimitive2D&
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rPolyPolygonAlphaGradientPrimitive2D);
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void paintBitmapAlpha(const BitmapEx& rBitmapEx, const basegfx::B2DHomMatrix& rTransform,
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double fTransparency = 0.0);
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void processBitmapAlphaPrimitive2D(
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const primitive2d::BitmapAlphaPrimitive2D& rBitmapAlphaPrimitive2D);
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void processControlPrimitive2D(const primitive2d::ControlPrimitive2D& rControlPrimitive);
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void processTextSimplePortionPrimitive2D(
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const primitive2d::TextSimplePortionPrimitive2D& rCandidate);
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void processTextDecoratedPortionPrimitive2D(
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const primitive2d::TextDecoratedPortionPrimitive2D& rCandidate);
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// helpers for text rendering
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void renderTextSimpleOrDecoratedPortionPrimitive2D(
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const primitive2d::TextSimplePortionPrimitive2D& rTextCandidate,
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const primitive2d::TextDecoratedPortionPrimitive2D* pDecoratedCandidate);
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void renderTextBackground(const primitive2d::TextSimplePortionPrimitive2D& rTextCandidate,
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double fAscent, double fDescent,
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const basegfx::B2DHomMatrix& rTransform, double fTextWidth);
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void renderSalLayout(const std::unique_ptr<SalLayout>& rSalLayout,
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const basegfx::BColor& rTextColor, const basegfx::B2DHomMatrix& rTransform,
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bool bAntiAliase) const;
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void renderTextDecorationWithOptionalTransformAndColor(
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const primitive2d::TextDecoratedPortionPrimitive2D& rDecoratedCandidate,
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const basegfx::utils::B2DHomMatrixBufferedOnDemandDecompose& rDecTrans,
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const basegfx::B2DHomMatrix* pOptionalObjectTransform = nullptr,
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const basegfx::BColor* pReplacementColor = nullptr);
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// support for SVG gradients
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void processSvgLinearGradientPrimitive2D(
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const primitive2d::SvgLinearGradientPrimitive2D& rCandidate);
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void processSvgRadialGradientPrimitive2D(
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const primitive2d::SvgRadialGradientPrimitive2D& rCandidate);
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bool handleSvgGradientHelper(const primitive2d::SvgGradientHelper& rCandidate);
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/* the local processor for BasePrimitive2D-Implementation based primitives,
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called from the common process()-implementation
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*/
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virtual void processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate) override;
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// helpers for gradients
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void processFillGradientPrimitive2D_fallback_decompose(
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const primitive2d::FillGradientPrimitive2D& rFillGradientPrimitive2D);
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void processFillGradientPrimitive2D_drawOutputRange(
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const primitive2d::FillGradientPrimitive2D& rFillGradientPrimitive2D);
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bool processFillGradientPrimitive2D_isCompletelyBordered(
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const primitive2d::FillGradientPrimitive2D& rFillGradientPrimitive2D);
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void processFillGradientPrimitive2D_linear_axial(
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const primitive2d::FillGradientPrimitive2D& rFillGradientPrimitive2D);
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void processFillGradientPrimitive2D_radial_elliptical(
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const primitive2d::FillGradientPrimitive2D& rFillGradientPrimitive2D);
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void processFillGradientPrimitive2D_square_rect(
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const primitive2d::FillGradientPrimitive2D& rFillGradientPrimitive2D);
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// check if CairoCoordinateLimitWorkaround is needed
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void evaluateCairoCoordinateLimitWorkaround();
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protected:
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bool hasError() const { return cairo_status(mpRT) != CAIRO_STATUS_SUCCESS; }
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bool hasRenderTarget() const { return nullptr != mpRT; }
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const com::sun::star::uno::Reference<com::sun::star::awt::XGraphics>& getXGraphics() const
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{
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return maXGraphics;
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}
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public:
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bool valid() const { return hasRenderTarget() && !hasError(); }
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// set a XGraphics for this CairoPixelProcessor2D when it is available
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void
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setXGraphics(const com::sun::star::uno::Reference<com::sun::star::awt::XGraphics>& rXGraphics)
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{
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maXGraphics = rXGraphics;
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}
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// read access to CairoCoordinateLimitWorkaround mechanism
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bool isCairoCoordinateLimitWorkaroundActive() const
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{
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return mbCairoCoordinateLimitWorkaroundActive;
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}
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// constructor to create a CairoPixelProcessor2D which
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// allocates and owns a cairo surface of given size. You
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// should check the result using valid()
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CairoPixelProcessor2D(
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// the initial ViewInformation
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const geometry::ViewInformation2D& rViewInformation,
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// the pixel size
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tools::Long nWidthPixel, tools::Long nHeightPixel,
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// define RGBA (true) or RGB (false)
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bool bUseRGBA);
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// constructor to create a CairoPixelProcessor2D for
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// the given cairo_surface_t pTarget. pTarget will not
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// be owned and not destroyed, but be used as render
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// target. If needed you can define a sub-rectangle
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// to which the rendering will be limited (clipped).
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// You should check the result using valid()
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CairoPixelProcessor2D(
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// the initial ViewInformation
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const geometry::ViewInformation2D& rViewInformation,
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// the cairo render target
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cairo_surface_t* pTarget,
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// optional: possibility to add an initial clip relative to
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// the real pixel dimensions of the target surface
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tools::Long nOffsetPixelX = 0, tools::Long nOffsetPixelY = 0, tools::Long nWidthPixel = 0,
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tools::Long nHeightPixel = 0);
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virtual ~CairoPixelProcessor2D() override;
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// access to BColorModifierStack
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const basegfx::BColorModifierStack& getBColorModifierStack() const
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{
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return maBColorModifierStack;
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}
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void setBColorModifierStack(const basegfx::BColorModifierStack& rStack)
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{
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maBColorModifierStack = rStack;
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}
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// try to extract current content as BitmapEx
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BitmapEx extractBitmapEx() const;
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};
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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