WebCore/RenderSVGContainer.h

   1 /*
   2     Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
   3                   2004, 2005, 2007 Rob Buis <buis@kde.org>
   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     aint 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 RenderSVGContainer_h
  24 #define RenderSVGContainer_h
  25
  26 #if ENABLE(SVG)
  27
  28 #include "RenderPath.h"
  29 #include "SVGPreserveAspectRatio.h"
  30
  31 namespace WebCore {
  32
  33 class SVGElement;
  34
  35 class RenderSVGContainer : public RenderObject {
  36 public:
  37     RenderSVGContainer(SVGStyledElement*);
  38     ~RenderSVGContainer();
  39
  40     virtual RenderObject* firstChild() const { return m_firstChild; }
  41     virtual RenderObject* lastChild() const { return m_lastChild; }
  42
  43     int width() const { return m_width; }
  44     int height() const { return m_height; }
  45
  46     virtual bool canHaveChildren() const;
  47     virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0);
  48     virtual void removeChild(RenderObject*);
  49
  50     virtual void destroy();
  51     void destroyLeftoverChildren();
  52
  53     virtual RenderObject* removeChildNode(RenderObject*, bool fullRemove = true);
  54     virtual void appendChildNode(RenderObject*, bool fullAppend = true);
  55     virtual void insertChildNode(RenderObject* child, RenderObject* before, bool fullInsert = true);
  56
  57     // Designed for speed.  Don't waste time doing a bunch of work like layer updating and repainting when we know that our
  58     // change in parentage is not going to affect anything.
  59     virtual void moveChildNode(RenderObject* child) { appendChildNode(child->parent()->removeChildNode(child, false), false); }
  60
  61     virtual void calcPrefWidths() { setPrefWidthsDirty(false); }
  62
  63     // Some containers do not want it's children
  64     // to be drawn, because they may be 'referenced'
  65     // Example: <marker> children in SVG
  66     void setDrawsContents(bool);
  67     bool drawsContents() const;
  68
  69     virtual bool isSVGContainer() const { return true; }
  70     virtual const char* renderName() const { return "RenderSVGContainer"; }
  71
  72     virtual bool requiresLayer() const { return false; }
  73     virtual int lineHeight(bool b, bool isRootLineBox = false) const;
  74     virtual int baselinePosition(bool b, bool isRootLineBox = false) const;
  75
  76     virtual void layout();
  77     virtual void paint(PaintInfo&, int parentX, int parentY);
  78
  79     virtual IntRect clippedOverflowRectForRepaint(RenderBox* repaintContainer);
  80     virtual void absoluteRects(Vector<IntRect>& rects, int tx, int ty, bool topLevel = true);
  81     virtual void absoluteQuads(Vector<FloatQuad>&, bool topLevel = true);
  82     virtual void addFocusRingRects(GraphicsContext*, int tx, int ty);
  83
  84     FloatRect relativeBBox(bool includeStroke = true) const;
  85
  86     virtual bool calculateLocalTransform();
  87     virtual TransformationMatrix localTransform() const;
  88     virtual TransformationMatrix viewportTransform() const;
  89
  90     virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
  91
  92 protected:
  93     virtual void applyContentTransforms(PaintInfo&);
  94     virtual void applyAdditionalTransforms(PaintInfo&);
  95
  96     void calcBounds();
  97
  98     virtual IntRect outlineBoundsForRepaint(RenderBox* /*repaintContainer*/) const;
  99
 100 private:
 101     int calcReplacedWidth() const;
 102     int calcReplacedHeight() const;
 103
 104     RenderObject* m_firstChild;
 105     RenderObject* m_lastChild;
 106
 107     int m_width;
 108     int m_height;
 109
 110     bool selfWillPaint() const;
 111
 112     bool m_drawsContents : 1;
 113
 114 protected:
 115     IntRect m_absoluteBounds;
 116     TransformationMatrix m_localTransform;
 117 };
 118
 119 } // namespace WebCore
 120
 121 #endif // ENABLE(SVG)
 122 #endif // RenderSVGContainer_h
 123
 124 // vim:ts=4:noet