KHtml

SVGLocatable.h
1 /*
2  Copyright (C) 2004, 2005 Nikolas Zimmermann <[email protected]>
3  2004, 2005, 2007 Rob Buis <[email protected]>
4 
5  This file is part of the KDE project
6 
7  This library is free software; you can redistribute it and/or
8  modify it under the terms of the GNU Library General Public
9  License as published by the Free Software Foundation; either
10  version 2 of the License, or (at your option) any later version.
11 
12  This library is distributed in the hope that it will be useful,
13  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  Library General Public License for more details.
16 
17  You should have received a copy of the GNU Library General Public License
18  along with this library; see the file COPYING.LIB. If not, write to
19  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20  Boston, MA 02110-1301, USA.
21 */
22 
23 #ifndef SVGLocatable_h
24 #define SVGLocatable_h
25 
26 #if ENABLE(SVG)
27 
28 #include "ExceptionCode.h"
29 #include "Document.h"
30 
31 namespace WebCore
32 {
33 
34 class AffineTransform;
35 class FloatRect;
36 class SVGElement;
37 class SVGStyledElement;
38 
39 class SVGLocatable
40 {
41 public:
42  SVGLocatable();
43  virtual ~SVGLocatable();
44 
45  // 'SVGLocatable' functions
46  virtual SVGElement *nearestViewportElement() const = 0;
47  virtual SVGElement *farthestViewportElement() const = 0;
48 
49  virtual FloatRect getBBox() const = 0;
50  virtual AffineTransform getCTM() const = 0;
51  virtual AffineTransform getScreenCTM() const = 0;
52  AffineTransform getTransformToElement(SVGElement *, ExceptionCode &) const;
53 
54  static SVGElement *nearestViewportElement(const SVGStyledElement *);
55  static SVGElement *farthestViewportElement(const SVGStyledElement *);
56 
57 protected:
58  static FloatRect getBBox(const SVGStyledElement *);
59  static AffineTransform getCTM(const SVGElement *);
60  static AffineTransform getScreenCTM(const SVGElement *);
61 };
62 
63 } // namespace WebCore
64 
65 #endif // ENABLE(SVG)
66 #endif // SVGLocatable_h
67 
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