104 lines
4.0 KiB
C
104 lines
4.0 KiB
C
|
/*
|
||
|
|
==============================================================================
|
||
|
|
|
||
|
|
This file is part of the JUCE library.
|
||
|
|
Copyright (c) 2017 - ROLI Ltd.
|
||
|
|
|
||
|
|
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 5 End-User License
|
||
|
|
Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
|
||
|
|
27th April 2017).
|
||
|
|
|
||
|
|
End User License Agreement: www.juce.com/juce-5-licence
|
||
|
|
Privacy Policy: www.juce.com/juce-5-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
|
||
|
|
{
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
/**
|
||
|
|
Interface class for graphics context objects, used internally by the Graphics class.
|
||
|
|
|
||
|
|
Users are not supposed to create instances of this class directly - do your drawing
|
||
|
|
via the Graphics object instead.
|
||
|
|
|
||
|
|
It's a base class for different types of graphics context, that may perform software-based
|
||
|
|
or OS-accelerated rendering.
|
||
|
|
|
||
|
|
E.g. the LowLevelGraphicsSoftwareRenderer renders onto an image in memory, but other
|
||
|
|
subclasses could render directly to a windows HDC, a Quartz context, or an OpenGL
|
||
|
|
context.
|
||
|
|
|
||
|
|
@tags{Graphics}
|
||
|
|
*/
|
||
|
|
class JUCE_API LowLevelGraphicsContext
|
||
|
|
{
|
||
|
|
protected:
|
||
|
|
//==============================================================================
|
||
|
|
LowLevelGraphicsContext();
|
||
|
|
|
||
|
|
public:
|
||
|
|
virtual ~LowLevelGraphicsContext();
|
||
|
|
|
||
|
|
/** Returns true if this device is vector-based, e.g. a printer. */
|
||
|
|
virtual bool isVectorDevice() const = 0;
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
/** Moves the origin to a new position.
|
||
|
|
|
||
|
|
The coordinates are relative to the current origin, and indicate the new position
|
||
|
|
of (0, 0).
|
||
|
|
*/
|
||
|
|
virtual void setOrigin (Point<int>) = 0;
|
||
|
|
virtual void addTransform (const AffineTransform&) = 0;
|
||
|
|
virtual float getPhysicalPixelScaleFactor() = 0;
|
||
|
|
|
||
|
|
virtual bool clipToRectangle (const Rectangle<int>&) = 0;
|
||
|
|
virtual bool clipToRectangleList (const RectangleList<int>&) = 0;
|
||
|
|
virtual void excludeClipRectangle (const Rectangle<int>&) = 0;
|
||
|
|
virtual void clipToPath (const Path&, const AffineTransform&) = 0;
|
||
|
|
virtual void clipToImageAlpha (const Image&, const AffineTransform&) = 0;
|
||
|
|
|
||
|
|
virtual bool clipRegionIntersects (const Rectangle<int>&) = 0;
|
||
|
|
virtual Rectangle<int> getClipBounds() const = 0;
|
||
|
|
virtual bool isClipEmpty() const = 0;
|
||
|
|
|
||
|
|
virtual void saveState() = 0;
|
||
|
|
virtual void restoreState() = 0;
|
||
|
|
|
||
|
|
virtual void beginTransparencyLayer (float opacity) = 0;
|
||
|
|
virtual void endTransparencyLayer() = 0;
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
virtual void setFill (const FillType&) = 0;
|
||
|
|
virtual void setOpacity (float) = 0;
|
||
|
|
virtual void setInterpolationQuality (Graphics::ResamplingQuality) = 0;
|
||
|
|
|
||
|
|
//==============================================================================
|
||
|
|
virtual void fillRect (const Rectangle<int>&, bool replaceExistingContents) = 0;
|
||
|
|
virtual void fillRect (const Rectangle<float>&) = 0;
|
||
|
|
virtual void fillRectList (const RectangleList<float>&) = 0;
|
||
|
|
virtual void fillPath (const Path&, const AffineTransform&) = 0;
|
||
|
|
virtual void drawImage (const Image&, const AffineTransform&) = 0;
|
||
|
|
virtual void drawLine (const Line<float>&) = 0;
|
||
|
|
|
||
|
|
virtual void setFont (const Font&) = 0;
|
||
|
|
virtual const Font& getFont() = 0;
|
||
|
|
virtual void drawGlyph (int glyphNumber, const AffineTransform&) = 0;
|
||
|
|
virtual bool drawTextLayout (const AttributedString&, const Rectangle<float>&) { return false; }
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace juce
|