khtml/rendering/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     virtual short/*khtml*/ int width() const { return m_width; }
  44     virtual 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 calcMinMaxWidth() { setMinMaxKnown(); }
  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();
  73     virtual short lineHeight(bool b, bool isRootLineBox = false) const;
  74     virtual short 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 absoluteClippedOverflowRect();
  80     virtual void absoluteRects(Vector<IntRect>& rects, int tx, int ty, bool topLevel = true);
  81     virtual void addFocusRingRects(GraphicsContext*, int tx, int ty);
  82
  83     FloatRect relativeBBox(bool includeStroke = true) const;
  84
  85     virtual bool calculateLocalTransform();
  86     virtual AffineTransform localTransform() const;
  87     virtual AffineTransform viewportTransform() const;
  88
  89     /*virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);*/
  90
  91     virtual bool childAllowed() const { return true; }
  92
  93 protected:
  94     virtual void applyContentTransforms(PaintInfo&);
  95     virtual void applyAdditionalTransforms(PaintInfo&);
  96
  97     void calcBounds();
  98
  99 private:
 100     int calcReplacedWidth() const;
 101     int calcReplacedHeight() const;
 102
 103     RenderObject* m_firstChild;
 104     RenderObject* m_lastChild;
 105
 106     int m_width;
 107     int m_height;
 108
 109     bool selfWillPaint() const;
 110
 111     bool m_drawsContents : 1;
 112
 113 protected:
 114     IntRect m_absoluteBounds;
 115     AffineTransform m_localTransform;
 116 };
 117
 118 } // namespace WebCore
 119
 120 #endif // ENABLE(SVG)
 121 #endif // RenderSVGContainer_h
 122
 123 // vim:ts=4:noet