1 /*
2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
4 * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
5 * Copyright (C) 2006 Apple Computer, Inc
6 * Copyright (C) 2009 Google, Inc.
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public License
19 * along with this library; see the file COPYING.LIB. If not, write to
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
22 */
23
24 #ifndef RenderSVGPath_h
25 #define RenderSVGPath_h
26
27 #if ENABLE(SVG)
28 #include "AffineTransform.h"
29 #include "FloatRect.h"
30 #include "RenderSVGModelObject.h"
31 #include "SVGMarkerLayoutInfo.h"
32
33 namespace WebCore {
34
35 class FloatPoint;
36 class RenderSVGContainer;
37 class SVGStyledTransformableElement;
38
39 class RenderSVGPath : public RenderSVGModelObject {
40 public:
41 explicit RenderSVGPath(SVGStyledTransformableElement*);
42 virtual ~RenderSVGPath();
43
path()44 const Path& path() const { return m_path; }
setNeedsPathUpdate()45 void setNeedsPathUpdate() { m_needsPathUpdate = true; }
setNeedsBoundariesUpdate()46 virtual void setNeedsBoundariesUpdate() { m_needsBoundariesUpdate = true; }
setNeedsTransformUpdate()47 virtual void setNeedsTransformUpdate() { m_needsTransformUpdate = true; }
48
49 private:
50 // Hit-detection seperated for the fill and the stroke
51 bool fillContains(const FloatPoint&, bool requiresFill = true, WindRule fillRule = RULE_NONZERO);
52 bool strokeContains(const FloatPoint&, bool requiresStroke = true);
53
objectBoundingBox()54 virtual FloatRect objectBoundingBox() const { return m_fillBoundingBox; }
strokeBoundingBox()55 virtual FloatRect strokeBoundingBox() const { return m_strokeAndMarkerBoundingBox; }
repaintRectInLocalCoordinates()56 virtual FloatRect repaintRectInLocalCoordinates() const { return m_repaintBoundingBox; }
localToParentTransform()57 virtual const AffineTransform& localToParentTransform() const { return m_localTransform; }
58
isSVGPath()59 virtual bool isSVGPath() const { return true; }
renderName()60 virtual const char* renderName() const { return "RenderSVGPath"; }
61
62 virtual void layout();
63 virtual void paint(PaintInfo&, int parentX, int parentY);
64 virtual void addFocusRingRects(Vector<IntRect>&, int tx, int ty);
65
66 virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction);
67
68 FloatRect calculateMarkerBoundsIfNeeded();
69 void updateCachedBoundaries();
70
71 private:
localTransform()72 virtual AffineTransform localTransform() const { return m_localTransform; }
73 void fillAndStrokePath(GraphicsContext*);
74
75 bool m_needsBoundariesUpdate : 1;
76 bool m_needsPathUpdate : 1;
77 bool m_needsTransformUpdate : 1;
78
79 mutable Path m_path;
80 FloatRect m_fillBoundingBox;
81 FloatRect m_strokeAndMarkerBoundingBox;
82 FloatRect m_repaintBoundingBox;
83 SVGMarkerLayoutInfo m_markerLayoutInfo;
84 AffineTransform m_localTransform;
85 };
86
toRenderSVGPath(RenderObject * object)87 inline RenderSVGPath* toRenderSVGPath(RenderObject* object)
88 {
89 ASSERT(!object || object->isSVGPath());
90 return static_cast<RenderSVGPath*>(object);
91 }
92
toRenderSVGPath(const RenderObject * object)93 inline const RenderSVGPath* toRenderSVGPath(const RenderObject* object)
94 {
95 ASSERT(!object || object->isSVGPath());
96 return static_cast<const RenderSVGPath*>(object);
97 }
98
99 // This will catch anyone doing an unnecessary cast.
100 void toRenderSVGPath(const RenderSVGPath*);
101
102 }
103
104 #endif // ENABLE(SVG)
105 #endif
106