cairopixelprocessor2d.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
 * 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/.
 */
 
#pragma once
 
#include <drawinglayer/processor2d/baseprocessor2d.hxx>
#include <basegfx/color/bcolormodifier.hxx>
#include <sal/config.h>
 
// cairo-specific
#include <cairo.h>
 
namespace drawinglayer::primitive2d
{
class PolyPolygonColorPrimitive2D;
class PolygonHairlinePrimitive2D;
class BitmapPrimitive2D;
class UnifiedTransparencePrimitive2D;
class BackgroundColorPrimitive2D;
class TransparencePrimitive2D;
class MaskPrimitive2D;
class ModifiedColorPrimitive2D;
class TransformPrimitive2D;
class PointArrayPrimitive2D;
class MarkerArrayPrimitive2D;
class PolygonStrokePrimitive2D;
class LineRectanglePrimitive2D;
class FilledRectanglePrimitive2D;
class SingleLinePrimitive2D;
}
 
namespace drawinglayer::processor2d
{
class DRAWINGLAYER_DLLPUBLIC CairoPixelProcessor2D final : public BaseProcessor2D
{
    // the modifiedColorPrimitive stack
    basegfx::BColorModifierStack maBColorModifierStack;
 
    // cairo specific data
    cairo_t* mpRT;
 
    // helpers for direct paints
    void processPolygonHairlinePrimitive2D(
        const primitive2d::PolygonHairlinePrimitive2D& rPolygonHairlinePrimitive2D);
    void processPolyPolygonColorPrimitive2D(
        const primitive2d::PolyPolygonColorPrimitive2D& rPolyPolygonColorPrimitive2D);
    void processBitmapPrimitive2D(const primitive2d::BitmapPrimitive2D& rBitmapCandidate);
    void
    processTransparencePrimitive2D(const primitive2d::TransparencePrimitive2D& rTransCandidate);
    void processUnifiedTransparencePrimitive2D(
        const primitive2d::UnifiedTransparencePrimitive2D& rTransCandidate);
    void processMaskPrimitive2DPixel(const primitive2d::MaskPrimitive2D& rMaskCandidate);
    void processModifiedColorPrimitive2D(
        const primitive2d::ModifiedColorPrimitive2D& rModifiedCandidate);
    void processTransformPrimitive2D(const primitive2d::TransformPrimitive2D& rTransformCandidate);
    void
    processPointArrayPrimitive2D(const primitive2d::PointArrayPrimitive2D& rPointArrayCandidate);
    void
    processMarkerArrayPrimitive2D(const primitive2d::MarkerArrayPrimitive2D& rMarkerArrayCandidate);
    void processBackgroundColorPrimitive2D(
        const primitive2d::BackgroundColorPrimitive2D& rBackgroundColorCandidate);
    void processPolygonStrokePrimitive2D(
        const primitive2d::PolygonStrokePrimitive2D& rPolygonStrokeCandidate);
    void processLineRectanglePrimitive2D(
        const primitive2d::LineRectanglePrimitive2D& rLineRectanglePrimitive2D);
    void processFilledRectanglePrimitive2D(
        const primitive2d::FilledRectanglePrimitive2D& rFilledRectanglePrimitive2D);
    void
    processSingleLinePrimitive2D(const primitive2d::SingleLinePrimitive2D& rSingleLinePrimitive2D);
 
    /*  the local processor for BasePrimitive2D-Implementation based primitives,
        called from the common process()-implementation
     */
    virtual void processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate) override;
 
protected:
    // local protected minimal constructor for usage in derivates, e.g. helpers
    CairoPixelProcessor2D(const geometry::ViewInformation2D& rViewInformation);
 
    bool hasError() const { return cairo_status(mpRT) != CAIRO_STATUS_SUCCESS; }
    void setRenderTarget(cairo_t* mpNewRT) { mpRT = mpNewRT; }
    bool hasRenderTarget() const { return nullptr != mpRT; }
 
public:
    bool valid() const { return hasRenderTarget() && !hasError(); }
    CairoPixelProcessor2D(const geometry::ViewInformation2D& rViewInformation,
                          cairo_surface_t* pTarget);
    virtual ~CairoPixelProcessor2D() override;
};
}
 
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