--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/platform/graphics/Path.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2003, 2006, 2009 Apple Inc. All rights reserved.
+ *               2006 Rob Buis <buis@kde.org>
+ * Copyright (C) 2007-2008 Torch Mobile, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef Path_h
+#define Path_h
+
+#include <algorithm>
+#include <wtf/FastAllocBase.h>
+
+#if PLATFORM(CG)
+typedef struct CGPath PlatformPath;
+#elif PLATFORM(OPENVG)
+namespace WebCore {
+class PlatformPathOpenVG;
+}
+typedef WebCore::PlatformPathOpenVG PlatformPath;
+#elif PLATFORM(QT)
+#include <qpainterpath.h>
+typedef QPainterPath PlatformPath;
+#elif PLATFORM(WX) && USE(WXGC)
+class wxGraphicsPath;
+typedef wxGraphicsPath PlatformPath;
+#elif PLATFORM(CAIRO)
+namespace WebCore {
+    struct CairoPath;
+}
+typedef WebCore::CairoPath PlatformPath;
+#elif PLATFORM(SKIA)
+class SkPath;
+typedef SkPath PlatformPath;
+#elif PLATFORM(HAIKU)
+class BRegion;
+typedef BRegion PlatformPath;
+#elif OS(WINCE)
+namespace WebCore {
+    class PlatformPath;
+}
+#else
+typedef void PlatformPath;
+#endif
+
+#if PLATFORM(QT)
+/* QPainterPath is valued based */
+typedef PlatformPath PlatformPathPtr;
+#else
+typedef PlatformPath* PlatformPathPtr;
+#endif
+
+namespace WebCore {
+
+    class AffineTransform;
+    class FloatPoint;
+    class FloatRect;
+    class FloatSize;
+    class GraphicsContext;
+    class String;
+    class StrokeStyleApplier;
+
+    enum WindRule {
+        RULE_NONZERO = 0,
+        RULE_EVENODD = 1
+    };
+
+    enum PathElementType {
+        PathElementMoveToPoint,
+        PathElementAddLineToPoint,
+        PathElementAddQuadCurveToPoint,
+        PathElementAddCurveToPoint,
+        PathElementCloseSubpath
+    };
+
+    struct PathElement {
+        PathElementType type;
+        FloatPoint* points;
+    };
+
+    typedef void (*PathApplierFunction)(void* info, const PathElement*);
+
+    class Path : public FastAllocBase {
+    public:
+        Path();
+        ~Path();
+
+        Path(const Path&);
+        Path& operator=(const Path&);
+
+        void swap(Path& other) { std::swap(m_path, other.m_path); }
+
+        bool contains(const FloatPoint&, WindRule rule = RULE_NONZERO) const;
+        bool strokeContains(StrokeStyleApplier*, const FloatPoint&) const;
+        FloatRect boundingRect() const;
+        FloatRect strokeBoundingRect(StrokeStyleApplier* = 0);
+        
+        float length();
+        FloatPoint pointAtLength(float length, bool& ok);
+        float normalAngleAtLength(float length, bool& ok);
+
+        void clear();
+        bool isEmpty() const;
+        // Gets the current point of the current path, which is conceptually the final point reached by the path so far.
+        // Note the Path can be empty (isEmpty() == true) and still have a current point.
+        bool hasCurrentPoint() const;
+        FloatPoint currentPoint() const;
+
+        void moveTo(const FloatPoint&);
+        void addLineTo(const FloatPoint&);
+        void addQuadCurveTo(const FloatPoint& controlPoint, const FloatPoint& endPoint);
+        void addBezierCurveTo(const FloatPoint& controlPoint1, const FloatPoint& controlPoint2, const FloatPoint& endPoint);
+        void addArcTo(const FloatPoint&, const FloatPoint&, float radius);
+        void closeSubpath();
+
+        void addArc(const FloatPoint&, float radius, float startAngle, float endAngle, bool anticlockwise);
+        void addRect(const FloatRect&);
+        void addEllipse(const FloatRect&);
+
+        void translate(const FloatSize&);
+
+        String debugString() const;
+
+        PlatformPathPtr platformPath() const { return m_path; }
+
+        static Path createRoundedRectangle(const FloatRect&, const FloatSize& roundingRadii);
+        static Path createRoundedRectangle(const FloatRect&, const FloatSize& topLeftRadius, const FloatSize& topRightRadius, const FloatSize& bottomLeftRadius, const FloatSize& bottomRightRadius);
+        static Path createRectangle(const FloatRect&);
+        static Path createEllipse(const FloatPoint& center, float rx, float ry);
+        static Path createCircle(const FloatPoint& center, float r);
+        static Path createLine(const FloatPoint&, const FloatPoint&);
+
+        void apply(void* info, PathApplierFunction) const;
+        void transform(const AffineTransform&);
+
+    private:
+        PlatformPathPtr m_path;
+    };
+
+}
+
+#endif