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      1 /*
      2  * Copyright (C) 2012, 2013 Adobe Systems Incorporated. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
     18  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
     19  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
     23  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
     24  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     25  * SUCH DAMAGE.
     26  */
     27 
     28 #ifndef Path2D_h
     29 #define Path2D_h
     30 
     31 #include "bindings/core/v8/ScriptWrappable.h"
     32 #include "core/html/canvas/CanvasPathMethods.h"
     33 #include "core/svg/SVGMatrixTearOff.h"
     34 #include "core/svg/SVGPathUtilities.h"
     35 #include "platform/heap/Handle.h"
     36 #include "platform/transforms/AffineTransform.h"
     37 #include "wtf/PassRefPtr.h"
     38 #include "wtf/RefCounted.h"
     39 
     40 namespace blink {
     41 
     42 class Path2D FINAL : public RefCountedWillBeGarbageCollectedFinalized<Path2D>, public CanvasPathMethods, public ScriptWrappable {
     43     DEFINE_WRAPPERTYPEINFO();
     44     WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
     45     WTF_MAKE_NONCOPYABLE(Path2D);
     46 public:
     47     static PassRefPtrWillBeRawPtr<Path2D> create() { return adoptRefWillBeNoop(new Path2D); }
     48     static PassRefPtrWillBeRawPtr<Path2D> create(const String& pathData) { return adoptRefWillBeNoop(new Path2D(pathData)); }
     49     static PassRefPtrWillBeRawPtr<Path2D> create(Path2D* path) { return adoptRefWillBeNoop(new Path2D(path)); }
     50 
     51     static PassRefPtrWillBeRawPtr<Path2D> create(const Path& path) { return adoptRefWillBeNoop(new Path2D(path)); }
     52 
     53     const Path& path() const { return m_path; }
     54 
     55     void addPath(Path2D* path)
     56     {
     57         addPath(path, 0);
     58     }
     59 
     60     void addPath(Path2D* path, SVGMatrixTearOff* transform)
     61     {
     62         Path src = path->path();
     63         m_path.addPath(src, transform ? transform->value() : AffineTransform(1, 0, 0, 1, 0, 0));
     64     }
     65 
     66     virtual ~Path2D() { }
     67     void trace(Visitor*) { }
     68 
     69 private:
     70     Path2D() : CanvasPathMethods() { }
     71 
     72     Path2D(const Path& path)
     73         : CanvasPathMethods(path) { }
     74 
     75     Path2D(Path2D* path)
     76         : CanvasPathMethods(path->path()) { }
     77 
     78     Path2D(const String& pathData)
     79         : CanvasPathMethods()
     80     {
     81         buildPathFromString(pathData, m_path);
     82     }
     83 };
     84 
     85 } // namespace blink
     86 
     87 #endif // Path2D_h
     88