- clean working copy for leaving SVN

2022-06-28 19:04:46 +02:00
parent 62a2d47cb3
commit 762b8f0e7d
1966 changed files with 699872 additions and 126 deletions
@@ -0,0 +1,101 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2013 - Raw Material Software 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_LOWLEVELGRAPHICSCONTEXT_H_INCLUDED
+#define JUCE_LOWLEVELGRAPHICSCONTEXT_H_INCLUDED
+
+
+//==============================================================================
+/**
+    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.
+*/
+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; }
+};
+
+
+#endif   // JUCE_LOWLEVELGRAPHICSCONTEXT_H_INCLUDED