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      1 /*
      2  * Copyright (C) 2006, 2007, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
      3  * Copyright (C) 2012, 2013 Adobe Systems Incorporated. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *
      9  * 1.  Redistributions of source code must retain the above copyright
     10  *     notice, this list of conditions and the following disclaimer.
     11  * 2.  Redistributions in binary form must reproduce the above copyright
     12  *     notice, this list of conditions and the following disclaimer in the
     13  *     documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY
     16  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     18  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
     19  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
     20  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     22  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
     24  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
     25  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #ifndef CanvasPathMethods_h
     30 #define CanvasPathMethods_h
     31 
     32 #include "platform/graphics/Path.h"
     33 
     34 namespace WebCore {
     35 
     36 class ExceptionState;
     37 class FloatRect;
     38 
     39 class CanvasPathMethods {
     40 public:
     41     virtual ~CanvasPathMethods() { }
     42 
     43     void closePath();
     44     void moveTo(float x, float y);
     45     void lineTo(float x, float y);
     46     void quadraticCurveTo(float cpx, float cpy, float x, float y);
     47     void bezierCurveTo(float cp1x, float cp1y, float cp2x, float cp2y, float x, float y);
     48     void arcTo(float x0, float y0, float x1, float y1, float radius, ExceptionState&);
     49     void arc(float x, float y, float radius, float startAngle, float endAngle, bool anticlockwise, ExceptionState&);
     50     void ellipse(float x, float y, float radiusX, float radiusY, float rotation, float startAngle, float endAngle, bool anticlockwise, ExceptionState&);
     51     void rect(float x, float y, float width, float height);
     52 
     53     virtual bool isTransformInvertible() const { return true; }
     54 
     55 protected:
     56     CanvasPathMethods() { }
     57     Path m_path;
     58 };
     59 }
     60 
     61 #endif
     62