Add skia to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@16 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 73 insertions, 0 deletions

diff --git a/skia/include/SkBounder.h b/skia/include/SkBounder.h
new file mode 100644
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+++ b/skia/include/SkBounder.h
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+/* include/graphics/SkBounder.h
+**
+** Copyright 2006, Google Inc.
+**
+** Licensed under the Apache License, Version 2.0 (the "License"); 
+** you may not use this file except in compliance with the License. 
+** You may obtain a copy of the License at 
+**
+**     http://www.apache.org/licenses/LICENSE-2.0 
+**
+** Unless required by applicable law or agreed to in writing, software 
+** distributed under the License is distributed on an "AS IS" BASIS, 
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
+** See the License for the specific language governing permissions and 
+** limitations under the License.
+*/
+
+#ifndef SkBounder_DEFINED
+#define SkBounder_DEFINED
+
+#include "SkTypes.h"
+#include "SkRefCnt.h"
+
+struct SkIRect;
+struct SkPoint;
+struct SkRect;
+class SkPaint;
+class SkPath;
+class SkRegion;
+
+/** \class SkBounder
+
+    Base class for intercepting the device bounds of shapes before they are drawn.
+    Install a subclass of this in your canvas.
+*/
+class SkBounder : public SkRefCnt {
+public:
+    /* Call to perform a clip test before calling onIRect. 
+       Returns the result from onIRect.
+    */
+    bool doIRect(const SkIRect&);
+
+protected:
+    /** Override in your subclass. This is called with the device bounds of an
+        object (text, geometry, image) just before it is drawn. If your method
+        returns false, the drawing for that shape is aborted. If your method
+        returns true, drawing continues. The bounds your method receives have already
+        been transformed in to device coordinates, and clipped to the current clip.
+    */
+    virtual bool onIRect(const SkIRect&) = 0;
+
+    /** Called after each shape has been drawn. The default implementation does
+        nothing, but your override could use this notification to signal itself
+        that the offscreen being rendered into needs to be updated to the screen.
+    */
+    virtual void commit();
+
+private:
+    bool doHairline(const SkPoint&, const SkPoint&, const SkPaint&);
+    bool doRect(const SkRect&, const SkPaint&);
+    bool doPath(const SkPath&, const SkPaint&, bool doFill);
+    void setClip(const SkRegion* clip) { fClip = clip; }
+
+    const SkRegion* fClip;
+    friend class SkAutoBounderCommit;
+    friend class SkDraw;
+    friend class SkDrawIter;
+    friend struct Draw1Glyph;
+    friend class SkMaskFilter;
+};
+
+#endif
+