juce_LowLevelGraphicsPostScriptRenderer.h

Go to the documentation of this file.

/*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2022 - Raw Material Software Limited
 
   JUCE is an open source library subject to commercial or open-source
   licensing.
 
   By using JUCE, you agree to the terms of both the JUCE 7 End-User License
   Agreement and JUCE Privacy Policy.
 
   End User License Agreement: www.juce.com/juce-7-licence
   Privacy Policy: www.juce.com/juce-privacy-policy
 
   Or: You may also use this code under the terms of the GPL v3 (see
   www.gnu.org/licenses).
 
   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.
 
  ==============================================================================
*/
 
namespace juce
{
 
//==============================================================================
class JUCE_API  LowLevelGraphicsPostScriptRenderer    : public LowLevelGraphicsContext
{
public:
    //==============================================================================
    LowLevelGraphicsPostScriptRenderer (OutputStream& resultingPostScript,
                                        const String& documentTitle,
                                        int totalWidth,
                                        int totalHeight);
 
    //==============================================================================
    bool isVectorDevice() const override;
    void setOrigin (Point<int>) override;
    void addTransform (const AffineTransform&) override;
    float getPhysicalPixelScaleFactor() override;
 
    bool clipToRectangle (const Rectangle<int>&) override;
    bool clipToRectangleList (const RectangleList<int>&) override;
    void excludeClipRectangle (const Rectangle<int>&) override;
    void clipToPath (const Path&, const AffineTransform&) override;
    void clipToImageAlpha (const Image&, const AffineTransform&) override;
 
    void saveState() override;
    void restoreState() override;
 
    void beginTransparencyLayer (float) override;
    void endTransparencyLayer() override;
 
    bool clipRegionIntersects (const Rectangle<int>&) override;
    Rectangle<int> getClipBounds() const override;
    bool isClipEmpty() const override;
 
    //==============================================================================
    void setFill (const FillType&) override;
    void setOpacity (float) override;
    void setInterpolationQuality (Graphics::ResamplingQuality) override;
 
    //==============================================================================
    void fillRect (const Rectangle<int>&, bool replaceExistingContents) override;
    void fillRect (const Rectangle<float>&) override;
    void fillRectList (const RectangleList<float>&) override;
    void fillPath (const Path&, const AffineTransform&) override;
    void drawImage (const Image&, const AffineTransform&) override;
    void drawLine (const Line <float>&) override;
 
    //==============================================================================
    const Font& getFont() override;
    void setFont (const Font&) override;
    void drawGlyph (int glyphNumber, const AffineTransform&) override;
 
protected:
    //==============================================================================
    OutputStream& out;
    int totalWidth, totalHeight;
    bool needToClip;
    Colour lastColour;

    struct SavedState
    {
        SavedState();
        SavedState (const SavedState&) = default;
        SavedState& operator= (const SavedState&) = delete;
 
        RectangleList<int> clip;
        int xOffset, yOffset;
        FillType fillType;
        Font font;
    };
 
    OwnedArray<SavedState> stateStack;
 
    void writeClip();
    void writeColour (Colour colour);
    void writePath (const Path&) const;
    void writeXY (float x, float y) const;
    void writeTransform (const AffineTransform&) const;
    void writeImage (const Image&, int sx, int sy, int maxW, int maxH) const;
 
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (LowLevelGraphicsPostScriptRenderer)
};
 
} // namespace juce