1 /*
2 * Copyright (C) 2004, 2006, 2007, 2009 Apple Inc. 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 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #ifndef RenderHTMLCanvas_h
27 #define RenderHTMLCanvas_h
28
29 #include "RenderReplaced.h"
30
31 namespace WebCore {
32
33 class HTMLCanvasElement;
34
35 class RenderHTMLCanvas : public RenderReplaced {
36 public:
37 explicit RenderHTMLCanvas(HTMLCanvasElement*);
38
isCanvas()39 virtual bool isCanvas() const { return true; }
40 virtual bool requiresLayer() const;
41
42 void canvasSizeChanged();
43
44 private:
renderName()45 virtual const char* renderName() const { return "RenderHTMLCanvas"; }
46 virtual void paintReplaced(PaintInfo&, int tx, int ty);
intrinsicSizeChanged()47 virtual void intrinsicSizeChanged() { canvasSizeChanged(); }
48 };
49
toRenderHTMLCanvas(RenderObject * object)50 inline RenderHTMLCanvas* toRenderHTMLCanvas(RenderObject* object)
51 {
52 ASSERT(!object || !strcmp(object->renderName(), "RenderHTMLCanvas"));
53 return static_cast<RenderHTMLCanvas*>(object);
54 }
55
56 // This will catch anyone doing an unnecessary cast.
57 void toRenderHTMLCanvas(const RenderHTMLCanvas*);
58
59 } // namespace WebCore
60
61 #endif // RenderHTMLCanvas_h
62