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/*
* This file is part of the DOM implementation for KDE.
*
* Copyright (C) 1999-2003 Lars Knoll ([email protected])
* (C) 1999 Antti Koivisto ([email protected])
* (C) 2002-2003 Apple Computer, Inc.
*
* 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 RENDER_BOX_H
#define RENDER_BOX_H
#include "render_container.h"
namespace khtml {
enum WidthType { Width, MinWidth, MaxWidth };
enum HeightType { Height, MinHeight, MaxHeight };
class RenderBlock;
class RenderBox : public RenderContainer
{
// combines ElemImpl & PosElImpl (all rendering objects are positioned)
// should contain all border and padding handling
public:
RenderBox(DOM::NodeImpl* node);
virtual ~RenderBox();
virtual const char *renderName() const { return "RenderBox"; }
virtual bool isBox() const { return true; }
virtual void setStyle(RenderStyle *style);
virtual void paint(PaintInfo& i, int _tx, int _ty);
virtual void close();
virtual InlineBox* createInlineBox(bool makePlaceHolderBox, bool isRootLineBox);
virtual void deleteInlineBoxes(RenderArena* arena=0);
virtual void detach();
virtual short minWidth() const { return m_minWidth; }
virtual int maxWidth() const { return m_maxWidth; }
virtual short contentWidth() const;
virtual int contentHeight() const;
virtual bool absolutePosition(int &xPos, int &yPos, bool f = false) const;
virtual void setPos( int xPos, int yPos );
virtual int xPos() const { return m_x; }
virtual int yPos() const { return m_y; }
virtual short width() const;
virtual int height() const;
virtual short marginTop() const { return m_marginTop; }
virtual short marginBottom() const { return m_marginBottom; }
virtual short marginLeft() const { return m_marginLeft; }
virtual short marginRight() const { return m_marginRight; }
virtual void setWidth( int width );
virtual void setHeight( int height );
virtual void position(InlineBox* box, int from, int len, bool reverse);
virtual int highestPosition(bool includeOverflowInterior=true, bool includeSelf=true) const;
virtual int lowestPosition(bool includeOverflowInterior=true, bool includeSelf=true) const;
virtual int rightmostPosition(bool includeOverflowInterior=true, bool includeSelf=true) const;
virtual int leftmostPosition(bool includeOverflowInterior=true, bool includeSelf=true) const;
virtual void repaint(Priority p=NormalPriority);
virtual void repaintRectangle(int x, int y, int w, int h, Priority p=NormalPriority, bool f=false);
virtual short containingBlockWidth() const;
void relativePositionOffset(int &tx, int &ty) const;
virtual void calcWidth();
virtual void calcHeight();
virtual short calcReplacedWidth() const;
virtual int calcReplacedHeight() const;
virtual int availableHeight() const;
virtual int availableWidth() const;
void calcVerticalMargins();
virtual RenderLayer* layer() const { return m_layer; }
void setStaticX(short staticX);
void setStaticY(int staticY);
int staticX() const { return m_staticX; }
int staticY() const { return m_staticY; }
virtual void caretPos(int offset, int flags, int &_x, int &_y, int &width, int &height);
void calcHorizontalMargins(const Length& ml, const Length& mr, int cw);
RenderBlock* createAnonymousBlock();
virtual int pageTopAfter(int y) const;
virtual int crossesPageBreak(int t, int b) const;
int calcBoxWidth(int w) const;
int calcBoxHeight(int h) const;
int calcContentWidth(int w) const;
int calcContentHeight(int h) const;
protected:
int calcWidthUsing(WidthType widthType, int cw, LengthType& lengthType);
int calcHeightUsing(const Length& height);
int calcReplacedWidthUsing(WidthType widthType) const;
int calcReplacedHeightUsing(HeightType heightType) const;
int calcPercentageHeight(const Length& height, bool treatAsReplaced = false) const;
int availableHeightUsing(const Length& h) const;
int availableWidthUsing(const Length& w) const;
int calcImplicitHeight() const;
bool hasImplicitHeight() const {
return isPositioned() && !style()->top().isVariable() && !style()->bottom().isVariable();
}
protected:
virtual void paintBoxDecorations(PaintInfo& paintInfo, int _tx, int _ty);
void paintRootBoxDecorations( PaintInfo& paintInfo, int _tx, int _ty);
void paintBackgrounds(QPainter *p, const QColor& c, const BackgroundLayer* bgLayer, int clipy, int cliph, int _tx, int _ty, int w, int h);
void paintBackground(QPainter *p, const QColor& c, const BackgroundLayer* bgLayer, int clipy, int cliph, int _tx, int _ty, int w, int h);
virtual void paintBackgroundExtended(QPainter* /*p*/, const QColor& /*c*/, const BackgroundLayer* /*bgLayer*/,
int /*clipy*/, int /*cliph*/, int /*_tx*/, int /*_ty*/,
int /*w*/, int /*height*/, int /*bleft*/, int /*bright*/, int /*pleft*/, int /*pright*/ );
void outlineBox(QPainter *p, int _tx, int _ty, const char *color = "red");
void calcAbsoluteHorizontal();
void calcAbsoluteVertical();
void calcAbsoluteHorizontalValues(Length width, const RenderObject* cb, EDirection containerDirection,
const int containerWidth, const int bordersPlusPadding,
const Length left, const Length right, const Length marginLeft, const Length marginRight,
short& widthValue, short& marginLeftValue, short& marginRightValue, short& xPos);
void calcAbsoluteVerticalValues(Length height, const RenderObject* cb,
const int containerHeight, const int bordersPlusPadding,
const Length top, const Length bottom, const Length marginTop, const Length marginBottom,
int& heightValue, short& marginTopValue, short& marginBottomValue, int& yPos);
void calcAbsoluteVerticalReplaced();
void calcAbsoluteHorizontalReplaced();
QRect getOverflowClipRect(int tx, int ty);
QRect getClipRect(int tx, int ty);
void restructureParentFlow();
// the actual height of the contents + borders + padding (border-box)
int m_height;
int m_y;
short m_width;
short m_x;
short m_marginTop;
short m_marginBottom;
short m_marginLeft;
short m_marginRight;
/*
* the minimum width the element needs, to be able to render
* its content without clipping
*/
short m_minWidth;
/* The maximum width the element can fill horizontally
* ( = the width of the element with line breaking disabled)
*/
int m_maxWidth;
// Cached normal flow values for absolute positioned elements with static left/top values.
short m_staticX;
int m_staticY;
RenderLayer *m_layer;
/* A box used to represent this object on a line
* when its inner content isn't contextually relevant
* (e.g replaced or positioned elements)
*/
InlineBox *m_placeHolderBox;
};
} //namespace
#endif
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