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214 lines
7.8 KiB
214 lines
7.8 KiB
/*
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* This file is part of the DOM implementation for KDE.
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*
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* Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org)
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* (C) 1999 Antti Koivisto (koivisto@kde.org)
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* (C) 2002-2003 Apple Computer, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef RENDER_BOX_H
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#define RENDER_BOX_H
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#include "render_container.h"
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namespace khtml {
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enum WidthType { Width, MinWidth, MaxWidth };
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enum HeightType { Height, MinHeight, MaxHeight };
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class RenderBlock;
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class RenderBox : public RenderContainer
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{
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// combines ElemImpl & PosElImpl (all rendering objects are positioned)
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// should contain all border and padding handling
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public:
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RenderBox(DOM::NodeImpl* node);
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virtual ~RenderBox();
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virtual const char *renderName() const { return "RenderBox"; }
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virtual bool isBox() const { return true; }
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virtual void setStyle(RenderStyle *style);
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virtual void paint(PaintInfo& i, int _tx, int _ty);
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virtual void close();
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virtual InlineBox* createInlineBox(bool makePlaceHolderBox, bool isRootLineBox);
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virtual void deleteInlineBoxes(RenderArena* arena=0);
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virtual void detach();
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virtual short minWidth() const { return m_minWidth; }
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virtual int maxWidth() const { return m_maxWidth; }
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virtual short contentWidth() const;
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virtual int contentHeight() const;
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virtual bool absolutePosition(int &xPos, int &yPos, bool f = false) const;
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virtual void setPos( int xPos, int yPos );
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virtual int xPos() const { return m_x; }
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virtual int yPos() const { return m_y; }
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virtual short width() const;
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virtual int height() const;
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virtual short marginTop() const { return m_marginTop; }
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virtual short marginBottom() const { return m_marginBottom; }
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virtual short marginLeft() const { return m_marginLeft; }
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virtual short marginRight() const { return m_marginRight; }
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virtual void setWidth( int width );
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virtual void setHeight( int height );
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virtual void position(InlineBox* box, int from, int len, bool reverse);
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virtual int highestPosition(bool includeOverflowInterior=true, bool includeSelf=true) const;
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virtual int lowestPosition(bool includeOverflowInterior=true, bool includeSelf=true) const;
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virtual int rightmostPosition(bool includeOverflowInterior=true, bool includeSelf=true) const;
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virtual int leftmostPosition(bool includeOverflowInterior=true, bool includeSelf=true) const;
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virtual void tqrepaint(Priority p=NormalPriority);
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virtual void repaintRectangle(int x, int y, int w, int h, Priority p=NormalPriority, bool f=false);
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virtual short containingBlockWidth() const;
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void relativePositionOffset(int &tx, int &ty) const;
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virtual void calcWidth();
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virtual void calcHeight();
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virtual short calcReplacedWidth() const;
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virtual int calcReplacedHeight() const;
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virtual int availableHeight() const;
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virtual int availableWidth() const;
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void calcVerticalMargins();
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virtual RenderLayer* layer() const { return m_layer; }
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void setStaticX(short staticX);
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void setStaticY(int staticY);
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int staticX() const { return m_staticX; }
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int staticY() const { return m_staticY; }
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virtual void caretPos(int offset, int flags, int &_x, int &_y, int &width, int &height);
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void calcHorizontalMargins(const Length& ml, const Length& mr, int cw);
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RenderBlock* createAnonymousBlock();
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virtual int pageTopAfter(int y) const;
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virtual int crossesPageBreak(int t, int b) const;
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int calcBoxWidth(int w) const;
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int calcBoxHeight(int h) const;
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int calcContentWidth(int w) const;
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int calcContentHeight(int h) const;
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protected:
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int calcWidthUsing(WidthType widthType, int cw, LengthType& lengthType);
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int calcHeightUsing(const Length& height);
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int calcReplacedWidthUsing(WidthType widthType) const;
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int calcReplacedHeightUsing(HeightType heightType) const;
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int calcPercentageHeight(const Length& height, bool treatAsReplaced = false) const;
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int availableHeightUsing(const Length& h) const;
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int availableWidthUsing(const Length& w) const;
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int calcImplicitHeight() const;
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bool hasImplicitHeight() const {
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return isPositioned() && !style()->top().isVariable() && !style()->bottom().isVariable();
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}
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protected:
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virtual void paintBoxDecorations(PaintInfo& paintInfo, int _tx, int _ty);
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void paintRootBoxDecorations( PaintInfo& paintInfo, int _tx, int _ty);
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void paintBackgrounds(TQPainter *p, const TQColor& c, const BackgroundLayer* bgLayer, int clipy, int cliph, int _tx, int _ty, int w, int h);
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void paintBackground(TQPainter *p, const TQColor& c, const BackgroundLayer* bgLayer, int clipy, int cliph, int _tx, int _ty, int w, int h);
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virtual void paintBackgroundExtended(TQPainter* /*p*/, const TQColor& /*c*/, const BackgroundLayer* /*bgLayer*/,
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int /*clipy*/, int /*cliph*/, int /*_tx*/, int /*_ty*/,
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int /*w*/, int /*height*/, int /*bleft*/, int /*bright*/, int /*pleft*/, int /*pright*/ );
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void outlineBox(TQPainter *p, int _tx, int _ty, const char *color = "red");
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void calcAbsoluteHorizontal();
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void calcAbsoluteVertical();
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void calcAbsoluteHorizontalValues(Length width, const RenderObject* cb, EDirection containerDirection,
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const int containerWidth, const int bordersPlusPadding,
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const Length left, const Length right, const Length marginLeft, const Length marginRight,
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short& widthValue, short& marginLeftValue, short& marginRightValue, short& xPos);
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void calcAbsoluteVerticalValues(Length height, const RenderObject* cb,
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const int containerHeight, const int bordersPlusPadding,
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const Length top, const Length bottom, const Length marginTop, const Length marginBottom,
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int& heightValue, short& marginTopValue, short& marginBottomValue, int& yPos);
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void calcAbsoluteVerticalReplaced();
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void calcAbsoluteHorizontalReplaced();
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TQRect getOverflowClipRect(int tx, int ty);
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TQRect getClipRect(int tx, int ty);
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void restructureParentFlow();
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// the actual height of the contents + borders + padding (border-box)
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int m_height;
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int m_y;
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short m_width;
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short m_x;
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short m_marginTop;
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short m_marginBottom;
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short m_marginLeft;
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short m_marginRight;
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/*
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* the minimum width the element needs, to be able to render
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* its content without clipping
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*/
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short m_minWidth;
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/* The maximum width the element can fill horizontally
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* ( = the width of the element with line breaking disabled)
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*/
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int m_maxWidth;
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// Cached normal flow values for absolute positioned elements with static left/top values.
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short m_staticX;
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int m_staticY;
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RenderLayer *m_layer;
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/* A box used to represent this object on a line
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* when its inner content isn't contextually relevant
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* (e.g replaced or positioned elements)
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*/
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InlineBox *m_placeHolderBox;
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};
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} //namespace
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#endif
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