text: /*
   * Copyright (C) 2006, 2007, 2009, 2010, 2011, 2012 Apple Inc. All rights
   * reserved.
   * Copyright (C) 2012, 2013 Adobe Systems Incorporated. All rights reserved.
   *
   * 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 THE COPYRIGHT HOLDER "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 THE COPYRIGHT HOLDER 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 THIRD_PARTY_BLINK_RENDERER_MODULES_CANVAS_CANVAS2D_CANVAS_PATH_H_
  #define THIRD_PARTY_BLINK_RENDERER_MODULES_CANVAS_CANVAS2D_CANVAS_PATH_H_
  
  #include "third_party/blink/renderer/modules/modules_export.h"
  #include "third_party/blink/renderer/platform/bindings/no_alloc_direct_call_host.h"
  #include "third_party/blink/renderer/platform/graphics/path.h"
  #include "third_party/blink/renderer/platform/heap/collection_support/heap_vector.h"
  #include "third_party/blink/renderer/platform/transforms/affine_transform.h"
  #include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
  
  namespace blink {
  
  class ExceptionState;
  class V8UnionDOMPointOrUnrestrictedDouble;
  
  class MODULES_EXPORT CanvasPath : public NoAllocDirectCallHost {
    DISALLOW_NEW();
  
   public:
    virtual ~CanvasPath() = default;
  
    void closePath();
    void moveTo(double double_x, double double_y);
    void lineTo(double double_x, double double_y);
    void quadraticCurveTo(double double_cpx,
                          double double_cpy,
                          double double_x,
                          double double_y);
    void bezierCurveTo(double double_cp1x,
                       double double_cp1y,
                       double double_cp2x,
                       double double_cp2y,
                       double double_x,
                       double double_y);
    void arcTo(double double_x1,
               double double_y1,
               double double_x2,
               double double_y2,
               double double_radius,
               ExceptionState&);
    void arc(double double_x,
             double double_y,
             double double_radius,
             double double_start_angle,
             double double_end_angle,
             bool anticlockwise,
             ExceptionState&);
    void ellipse(double double_x,
                 double double_y,
                 double double_radius_x,
                 double double_radius_y,
                 double double_rotation,
                 double double_start_angle,
                 double double_end_angle,
                 bool anticlockwise,
                 ExceptionState&);
    void rect(double double_x,
              double double_y,
              double double_width,
              double double_height);
    void roundRect(
        double double_x,
        double double_y,
        double double_width,
        double double_height,
        const HeapVector<Member<V8UnionDOMPointOrUnrestrictedDouble>>& radii,
        ExceptionState& exception_state);
  
    virtual bool IsTransformInvertible() const { return true; }
    virtual TransformationMatrix GetTransform() const {
      // This will be the identity matrix
      return TransformationMatrix();
    }
  
   protected:
    CanvasPath() { path_.SetIsVolatile(true); }
    CanvasPath(const Path& path) : path_(path) { path_.SetIsVolatile(true); }
    Path path_;
  };
  
  }  // namespace blink
  
  #endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_CANVAS_CANVAS2D_CANVAS_PATH_H_
  