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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2015 - ROLI Ltd.
Permission is granted to use this software under the terms of either:
a) the GPL v2 (or any later version)
b) the Affero GPL v3
Details of these licenses can be found at: www.gnu.org/licenses
JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.juce.com for more information.
==============================================================================
*/
#ifndef JUCE_MAC_COREGRAPHICSCONTEXT_H_INCLUDED
#define JUCE_MAC_COREGRAPHICSCONTEXT_H_INCLUDED
//==============================================================================
class CoreGraphicsContext : public LowLevelGraphicsContext
{
public:
CoreGraphicsContext (CGContextRef context, float flipHeight, float targetScale);
~CoreGraphicsContext();
//==============================================================================
bool isVectorDevice() const override { return false; }
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;
bool clipRegionIntersects (const Rectangle<int>&) override;
Rectangle<int> getClipBounds() const override;
bool isClipEmpty() const override;
//==============================================================================
void saveState() override;
void restoreState() override;
void beginTransparencyLayer (float opacity) override;
void endTransparencyLayer() 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& sourceImage, const AffineTransform&) override;
//==============================================================================
void drawLine (const Line<float>&) override;
void setFont (const Font&) override;
const Font& getFont() override;
void drawGlyph (int glyphNumber, const AffineTransform&) override;
bool drawTextLayout (const AttributedString&, const Rectangle<float>&) override;
private:
CGContextRef context;
const CGFloat flipHeight;
float targetScale;
CGColorSpaceRef rgbColourSpace, greyColourSpace;
mutable Rectangle<int> lastClipRect;
mutable bool lastClipRectIsValid;
struct SavedState
{
SavedState();
SavedState (const SavedState&);
~SavedState();
void setFill (const FillType&);
FillType fillType;
Font font;
CGFontRef fontRef;
CGAffineTransform fontTransform;
CGGradientRef gradient;
};
ScopedPointer<SavedState> state;
OwnedArray<SavedState> stateStack;
void drawGradient();
void createPath (const Path&) const;
void createPath (const Path&, const AffineTransform&) const;
void flip() const;
void applyTransform (const AffineTransform&) const;
void drawImage (const Image&, const AffineTransform&, bool fillEntireClipAsTiles);
bool clipToRectangleListWithoutTest (const RectangleList<int>&);
void fillCGRect (const CGRect&, bool replaceExistingContents);
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (CoreGraphicsContext)
};
#endif // JUCE_MAC_COREGRAPHICSCONTEXT_H_INCLUDED
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