blob: 25717b1a3bcff6cc053d0e09160024d6ab43a7fe [file] [log] [blame]
/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef RenderBR_h
#define RenderBR_h
#include "RenderText.h"
/*
* The whole class here is a hack to get <br> working, as long as we don't have support for
* CSS2 :before and :after pseudo elements
*/
namespace WebCore {
class Position;
class RenderBR : public RenderText {
public:
RenderBR(Node*);
virtual ~RenderBR();
virtual const char* renderName() const { return "RenderBR"; }
virtual IntRect selectionRectForRepaint(RenderBoxModelObject* /*repaintContainer*/, bool /*clipToVisibleContent*/) { return IntRect(); }
virtual float width(unsigned /*from*/, unsigned /*len*/, const Font&, float /*xPos*/, HashSet<const SimpleFontData*>* = 0 /*fallbackFonts*/ , GlyphOverflow* = 0) const { return 0; }
virtual float width(unsigned /*from*/, unsigned /*len*/, float /*xpos*/, bool = false /*firstLine*/, HashSet<const SimpleFontData*>* = 0 /*fallbackFonts*/, GlyphOverflow* = 0) const { return 0; }
int lineHeight(bool firstLine) const;
// overrides
virtual bool isBR() const { return true; }
virtual int caretMinOffset() const;
virtual int caretMaxOffset() const;
virtual unsigned caretMaxRenderedOffset() const;
virtual VisiblePosition positionForPoint(const IntPoint&);
protected:
virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
private:
mutable int m_lineHeight;
};
inline RenderBR* toRenderBR(RenderObject* object)
{
ASSERT(!object || object->isBR());
return static_cast<RenderBR*>(object);
}
inline const RenderBR* toRenderBR(const RenderObject* object)
{
ASSERT(!object || object->isBR());
return static_cast<const RenderBR*>(object);
}
// This will catch anyone doing an unnecessary cast.
void toRenderBR(const RenderBR*);
} // namespace WebCore
#endif // RenderBR_h