render_style.h   [plain text]

/*
 * This file is part of the DOM implementation for KDE.
 *
 * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
 *           (C) 2000 Antti Koivisto (koivisto@kde.org)
 *           (C) 2000 Dirk Mueller (mueller@kde.org)
 * Copyright (C) 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., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 */
#ifndef RENDERSTYLE_H
#define RENDERSTYLE_H

/*
 * WARNING:
 * --------
 *
 * The order of the values in the enums have to agree with the order specified
 * in cssvalues.in, otherwise some optimizations in the parser will fail,
 * and produce invaliud results.
 */

#include <qcolor.h>
#include <qfont.h>
#include <qfontmetrics.h>
#include <qlist.h>
#include <qpalette.h>
#include <qapplication.h>

#include "dom/dom_misc.h"
#include "misc/khtmllayout.h"
#include "misc/shared.h"
#include "rendering/font.h"

#include <assert.h>

#define SET_VAR(group,variable,value) \
    if (!(group->variable == value)) \
        group.access()->variable = value;

namespace DOM {
    class DOMStringImpl;
}

namespace khtml {

    class CachedImage;
    class CachedObject;

template <class DATA>
class DataRef
{
public:

    DataRef()
    {
	data=0;
    }
    DataRef( const DataRef<DATA> &d )
    {
    	data = d.data;
	data->ref();
    }

    ~DataRef()
    {
    	if(data) data->deref();
    }

    const DATA* operator->() const
    {
    	return data;
    }

    const DATA* get() const
    {
    	return data;
    }


    DATA* access()
    {
    	if (!data->hasOneRef())
	{
	    data->deref();
	    data = new DATA(*data);
	    data->ref();
	}
	return data;
    }

    void init()
    {
    	data = new DATA;
	data->ref();
    }

    DataRef<DATA>& operator=(const DataRef<DATA>& d)
    {
    	if (data==d.data)
	    return *this;
    	if (data)
    	    data->deref();
    	data = d.data;

	data->ref();

	return *this;
    }

    bool operator == ( const DataRef<DATA> &o ) const {
	return (*data == *(o.data) );
    }
    bool operator != ( const DataRef<DATA> &o ) const {
	return (*data != *(o.data) );
    }

private:
    DATA* data;
};


//------------------------------------------------

//------------------------------------------------
// Box model attributes. Not inherited.

struct LengthBox
{
    LengthBox()
    {
    }
    LengthBox( LengthType t )
	: left( t ), right ( t ), top( t ), bottom( t ) {}

    Length left;
    Length right;
    Length top;
    Length bottom;
    Length& operator=(Length& len)
    {
    	left=len;
	right=len;
	top=len;
	bottom=len;
	return len;
    }

    bool operator==(const LengthBox& o) const
    {
    	return left==o.left && right==o.right && top==o.top && bottom==o.bottom;
    }


    bool nonZero() const { return left.value!=0 || right.value!=0 || top.value!=0 || bottom.value!=0; }
};



enum EPosition {
    STATIC, RELATIVE, ABSOLUTE, FIXED
};

enum EFloat {
    FNONE = 0, FLEFT, FRIGHT
};


//------------------------------------------------
// Border attributes. Not inherited.


enum EBorderStyle {
    BNONE, BHIDDEN, DOTTED, DASHED, DOUBLE, SOLID,
    OUTSET, INSET, GROOVE, RIDGE
};


class BorderValue
{
public:
    BorderValue()
    {
	width = 3; // medium is default value
	style = BNONE;
        transparent = false;
    }
    QColor color;
    unsigned short width : 11;
    EBorderStyle style : 4;
    bool transparent : 1;
    
    bool nonZero() const
    {
      // rikkus: workaround for gcc 2.95.3
      return width!=0 && !(style==BNONE);
    }

    bool isTransparent() const {
        return transparent;
    }
    
    bool operator==(const BorderValue& o) const
    {
    	return width==o.width && style==o.style && color==o.color && transparent==o.transparent;
    }

};

class BorderData : public Shared<BorderData>
{
public:
    BorderValue left;
    BorderValue right;
    BorderValue top;
    BorderValue bottom;

    bool hasBorder() const
    {
    	return left.nonZero() || right.nonZero() || top.nonZero() || bottom.nonZero();
    }

    bool operator==(const BorderData& o) const
    {
    	return left==o.left && right==o.right && top==o.top && bottom==o.bottom;
    }

};

class StyleSurroundData : public Shared<StyleSurroundData>
{
public:
    StyleSurroundData();

    StyleSurroundData(const StyleSurroundData& o );
    bool operator==(const StyleSurroundData& o) const;
    bool operator!=(const StyleSurroundData& o) const {
        return !(*this == o);
    }

    LengthBox offset;
    LengthBox margin;
    LengthBox padding;
    BorderData border;
};


//------------------------------------------------
// Box attributes. Not inherited.

class StyleBoxData : public Shared<StyleBoxData>
{
public:
    StyleBoxData();

    StyleBoxData(const StyleBoxData& o );


    // copy and assignment
//    StyleBoxData(const StyleBoxData &other);
//    const StyleBoxData &operator = (const StyleBoxData &other);

    bool operator==(const StyleBoxData& o) const;
    bool operator!=(const StyleBoxData& o) const {
        return !(*this == o);
    }

    Length width;
    Length height;

    Length min_width;
    Length max_width;

    Length min_height;
    Length max_height;

    Length vertical_align;

    int z_index;
    bool z_auto : 1;
};

//------------------------------------------------
// Random visual rendering model attributes. Not inherited.

enum EOverflow {
    OVISIBLE, OHIDDEN, OSCROLL, OAUTO
};

enum EVerticalAlign {
    BASELINE, MIDDLE, SUB, SUPER, TEXT_TOP,
    TEXT_BOTTOM, TOP, BOTTOM, BASELINE_MIDDLE, LENGTH
};

enum EClear{
    CNONE = 0, CLEFT = 1, CRIGHT = 2, CBOTH = 3
};

enum ETableLayout {
    TAUTO, TFIXED
};

enum EUnicodeBidi {
    UBNormal, Embed, Override
};

class StyleVisualData : public Shared<StyleVisualData>
{
public:
    StyleVisualData();

    ~StyleVisualData();

    StyleVisualData(const StyleVisualData& o );

    bool operator==( const StyleVisualData &o ) const {
	return ( clip == o.clip &&
                 hasClip == o.hasClip &&
		 colspan == o.colspan &&
		 counter_increment == o.counter_increment &&
		 counter_reset == o.counter_reset &&
		 palette == o.palette && textDecoration == o.textDecoration);
    }
    bool operator!=( const StyleVisualData &o ) const {
        return !(*this == o);
    }

    LengthBox clip;
    bool hasClip : 1;
    int textDecoration : 4; // Text decorations defined *only* by this element.
    
    short colspan; // for html, not a css2 attribute

    short counter_increment; //ok, so these are not visual mode spesific
    short counter_reset;     //can't go to inherited, since these are not inherited

    QPalette palette;      //widget styling with IE attributes

};

//------------------------------------------------
enum EBackgroundRepeat {
    REPEAT, REPEAT_X, REPEAT_Y, NO_REPEAT
};



class StyleBackgroundData : public Shared<StyleBackgroundData>
{
public:
    StyleBackgroundData();
    ~StyleBackgroundData() {}
    StyleBackgroundData(const StyleBackgroundData& o );

    bool operator==(const StyleBackgroundData& o) const;
    bool operator!=(const StyleBackgroundData &o) const {
	return !(*this == o);
    }

    QColor color;
    CachedImage *image;

    Length x_position;
    Length y_position;
    BorderValue outline;
};


//------------------------------------------------
// Inherited attributes.
//
// the inherited-decoration and inherited-shadow attributes
// are inherited from the
// first parent which is block level
//
// this applies to decoration_color too

enum EWhiteSpace {
    NORMAL, PRE, NOWRAP, KONQ_NOWRAP
};

enum ETextAlign {
    TAAUTO, LEFT, RIGHT, CENTER, JUSTIFY, KONQ_CENTER
};

enum ETextTransform {
    CAPITALIZE, UPPERCASE, LOWERCASE, TTNONE
};

enum EDirection {
    LTR, RTL
};

enum ETextDecoration {
    TDNONE = 0x0 , UNDERLINE = 0x1, OVERLINE = 0x2, LINE_THROUGH= 0x4, BLINK = 0x8
};

class StyleInheritedData : public Shared<StyleInheritedData>
{
public:
    StyleInheritedData();
    ~StyleInheritedData();
    StyleInheritedData(const StyleInheritedData& o );

    bool operator==(const StyleInheritedData& o) const;
    bool operator != ( const StyleInheritedData &o ) const {
	return !(*this == o);
    }

    Length indent;
    // could be packed in a short but doesn't
    // make a difference currently because of padding
    Length line_height;

    CachedImage *style_image;
    CachedImage *cursor_image;

    khtml::Font font;
    QColor color;
    
    short border_spacing;
};


enum EEmptyCell {
    SHOW, HIDE
};

enum ECaptionSide
{
    CAPTOP, CAPBOTTOM, CAPLEFT, CAPRIGHT
};


enum EListStyleType {
     DISC, CIRCLE, SQUARE, LDECIMAL, DECIMAL_LEADING_ZERO,
     LOWER_ROMAN, UPPER_ROMAN, LOWER_GREEK,
     LOWER_ALPHA, LOWER_LATIN, UPPER_ALPHA, UPPER_LATIN,
     HEBREW, ARMENIAN, GEORGIAN, CJK_IDEOGRAPHIC,
     HIRAGANA, KATAKANA, HIRAGANA_IROHA, KATAKANA_IROHA, LNONE
};

enum EListStylePosition { OUTSIDE, INSIDE };

enum EVisibility { VISIBLE, HIDDEN, COLLAPSE };

enum ECursor {
    CURSOR_AUTO, CURSOR_CROSS, CURSOR_DEFAULT, CURSOR_POINTER, CURSOR_MOVE,
    CURSOR_E_RESIZE, CURSOR_NE_RESIZE, CURSOR_NW_RESIZE, CURSOR_N_RESIZE, CURSOR_SE_RESIZE, CURSOR_SW_RESIZE,
    CURSOR_S_RESIZE, CURSOR_W_RESIZE, CURSOR_TEXT, CURSOR_WAIT, CURSOR_HELP
};

enum EFontVariant {
    FVNORMAL, SMALL_CAPS
};

enum ContentType {
    CONTENT_NONE, CONTENT_OBJECT, CONTENT_TEXT, CONTENT_COUNTER
};

struct ContentData {
    ContentData() :_contentType(CONTENT_NONE), _nextContent(0) {}
    ~ContentData();
    void clearContent();

    ContentType contentType() { return _contentType; }

    DOM::DOMStringImpl* contentText() { if (contentType() == CONTENT_TEXT) return _content.text; return 0; }
    CachedObject* contentObject() { if (contentType() == CONTENT_OBJECT) return _content.object; return 0; }
    
    ContentType _contentType;

    union {
        CachedObject* object;
        DOM::DOMStringImpl* text;
        // counters...
    } _content ;

    ContentData* _nextContent;
};

//------------------------------------------------

enum EDisplay {
    INLINE, BLOCK, LIST_ITEM, RUN_IN, COMPACT, MARKER,
    TABLE, INLINE_TABLE, TABLE_ROW_GROUP,
    TABLE_HEADER_GROUP, TABLE_FOOTER_GROUP, TABLE_ROW,
    TABLE_COLUMN_GROUP, TABLE_COLUMN, TABLE_CELL,
    TABLE_CAPTION, NONE
};

class RenderStyle : public Shared<RenderStyle>
{
    friend class CSSStyleSelector;
public:
    static void cleanup();

    // static pseudo styles. Dynamic ones are produced on the fly.
    enum PseudoId { NOPSEUDO, FIRST_LINE, FIRST_LETTER, BEFORE, AFTER, SELECTION };

protected:

// !START SYNC!: Keep this in sync with the copy constructor in render_style.cpp

    // inherit
    struct InheritedFlags {
    // 32 bit inherited, don't add to the struct, or the operator will break.
	bool operator==( const InheritedFlags &other ) const {
	    return *((Q_UINT32 *)this) == *((Q_UINT32 *)&other);
	}
	bool operator!=( const InheritedFlags &other ) const {
	    return *((Q_UINT32 *)this) != *((Q_UINT32 *)&other);
	}

	EEmptyCell _empty_cells : 1 ;
	ECaptionSide _caption_side : 2;
	EListStyleType _list_style_type : 5 ;
	EListStylePosition _list_style_position :1;
	EVisibility _visibility : 2;
	ETextAlign _text_align : 3;
	ETextTransform _text_transform : 2;
	int _text_decorations : 4;
	ECursor _cursor_style : 4;
	EDirection _direction : 1;
	bool _border_collapse : 1 ;
	EWhiteSpace _white_space : 2;
	EFontVariant _font_variant : 1;
              // non CSS2 inherited
              bool _visuallyOrdered : 1;
              bool _htmlHacks :1;
              int _unused : 1;
    } inherited_flags;

// don't inherit
    struct NonInheritedFlags {
        bool operator==( const NonInheritedFlags &other ) const {
            return (_effectiveDisplay == other._effectiveDisplay) &&
            (_originalDisplay == other._originalDisplay) &&
            (_bg_repeat == other._bg_repeat) &&
            (_overflow == other._overflow) &&
            (_vertical_align == other._vertical_align) &&
            (_clear == other._clear) &&
            (_position == other._position) &&
            (_floating == other._floating) &&
            (_table_layout == other._table_layout) &&
            (_flowAroundFloats == other._flowAroundFloats) &&
            (_styleType == other._styleType) &&
            (_affectedByHover == other._affectedByHover) &&
            (_affectedByActive == other._affectedByActive) &&
            (_unicodeBidi == other._unicodeBidi);
	}

        bool operator!=( const NonInheritedFlags &other ) const {
            return !(*this == other);
        }
        
        EDisplay _effectiveDisplay : 5;
        EDisplay _originalDisplay : 5;
        EBackgroundRepeat _bg_repeat : 2;
        bool _bg_attachment : 1;
        EOverflow _overflow : 4 ;
        EVerticalAlign _vertical_align : 4;
        EClear _clear : 2;
        EPosition _position : 2;
        EFloat _floating : 2;
        ETableLayout _table_layout : 1;
        bool _flowAroundFloats :1;

        PseudoId _styleType : 3;
        bool _affectedByHover : 1;
        bool _affectedByActive : 1;
        EUnicodeBidi _unicodeBidi : 2;
    } noninherited_flags;

// non-inherited attributes
    DataRef<StyleBoxData> box;
    DataRef<StyleVisualData> visual;
    DataRef<StyleBackgroundData> background;
    DataRef<StyleSurroundData> surround;

// inherited attributes
    DataRef<StyleInheritedData> inherited;

// list of associated pseudo styles
    RenderStyle* pseudoStyle;

    // added this here, so we can get rid of the vptr in this class.
    // makes up for the same size.
    ContentData *content;
// !END SYNC!

// static default style
    static RenderStyle* _default;

protected:
    void setBitDefaults()
    {
	inherited_flags._empty_cells = SHOW;
	inherited_flags._caption_side = CAPTOP;
	inherited_flags._list_style_type = DISC;
	inherited_flags._list_style_position = OUTSIDE;
	inherited_flags._visibility = VISIBLE;
	inherited_flags._text_align = TAAUTO;
	inherited_flags._text_transform = TTNONE;
	inherited_flags._text_decorations = TDNONE;
	inherited_flags._cursor_style = CURSOR_AUTO;
	inherited_flags._direction = LTR;
	inherited_flags._border_collapse = true;
	inherited_flags._white_space = NORMAL;
	inherited_flags._font_variant = FVNORMAL;
	inherited_flags._visuallyOrdered = false;
	inherited_flags._htmlHacks=false;
	inherited_flags._unused = 0;

	noninherited_flags._effectiveDisplay = noninherited_flags._originalDisplay = INLINE;
	noninherited_flags._bg_repeat = REPEAT;
	noninherited_flags._bg_attachment = true;
	noninherited_flags._overflow = OVISIBLE;
	noninherited_flags._vertical_align = BASELINE;
	noninherited_flags._clear = CNONE;
	noninherited_flags._position = STATIC;
	noninherited_flags._floating = FNONE;
	noninherited_flags._table_layout = TAUTO;
	noninherited_flags._flowAroundFloats=false;
	noninherited_flags._styleType = NOPSEUDO;
        noninherited_flags._affectedByHover = false;
        noninherited_flags._affectedByActive = false;
	noninherited_flags._unicodeBidi = UBNormal;
    }

public:

    RenderStyle();
    // used to create the default style.
    RenderStyle(bool);
    RenderStyle(const RenderStyle&);

    ~RenderStyle();

    void inheritFrom(const RenderStyle* inheritParent);

    PseudoId styleType() { return  noninherited_flags._styleType; }

    RenderStyle* getPseudoStyle(PseudoId pi);
    RenderStyle* addPseudoStyle(PseudoId pi);
    bool hasPseudoStyle() const { return pseudoStyle; }
    void removePseudoStyle(PseudoId pi);

    bool affectedByHoverRules() const { return  noninherited_flags._affectedByHover; }
    bool affectedByActiveRules() const { return  noninherited_flags._affectedByActive; }

    void setAffectedByHoverRules(bool b) {  noninherited_flags._affectedByHover = b; }
    void setAffectedByActiveRules(bool b) {  noninherited_flags._affectedByActive = b; }
 
    bool operator==(const RenderStyle& other) const;
    bool        isFloating() const { return !(noninherited_flags._floating == FNONE); }
    bool        hasMargin() const { return surround->margin.nonZero(); }
    bool        hasBorder() const { return surround->border.hasBorder(); }
    bool        hasOffset() const { return surround->offset.nonZero(); }

    bool visuallyOrdered() const { return inherited_flags._visuallyOrdered; }
    void setVisuallyOrdered(bool b) {  inherited_flags._visuallyOrdered = b; }

    bool isStyleAvailable() const;
    
// attribute getter methods

    EDisplay 	display() const { return noninherited_flags._effectiveDisplay; }
    EDisplay    originalDisplay() const { return noninherited_flags._originalDisplay; }
    
    Length  	left() const {  return surround->offset.left; }
    Length  	right() const {  return surround->offset.right; }
    Length  	top() const {  return surround->offset.top; }
    Length  	bottom() const {  return surround->offset.bottom; }

    EPosition 	position() const { return  noninherited_flags._position; }
    EFloat  	floating() const { return  noninherited_flags._floating; }

    Length  	width() const { return box->width; }
    Length  	height() const { return box->height; }
    Length  	minWidth() const { return box->min_width; }
    Length  	maxWidth() const { return box->max_width; }
    Length  	minHeight() const { return box->min_height; }
    Length  	maxHeight() const { return box->max_height; }

    unsigned short  borderLeftWidth() const
    { if( surround->border.left.style == BNONE) return 0; return surround->border.left.width; }
    EBorderStyle    borderLeftStyle() const { return surround->border.left.style; }
    const QColor &  borderLeftColor() const { return surround->border.left.color; }
    bool borderLeftIsTransparent() const { return surround->border.left.isTransparent(); }
    unsigned short  borderRightWidth() const
    { if (surround->border.right.style == BNONE) return 0; return surround->border.right.width; }
    EBorderStyle    borderRightStyle() const {  return surround->border.right.style; }
    const QColor &  	    borderRightColor() const {  return surround->border.right.color; }
    bool borderRightIsTransparent() const { return surround->border.right.isTransparent(); }
    unsigned short  borderTopWidth() const
    { if(surround->border.top.style == BNONE) return 0; return surround->border.top.width; }
    EBorderStyle    borderTopStyle() const {return surround->border.top.style; }
    const QColor &  borderTopColor() const {  return surround->border.top.color; }
    bool borderTopIsTransparent() const { return surround->border.top.isTransparent(); }
    unsigned short  borderBottomWidth() const
    { if(surround->border.bottom.style == BNONE) return 0; return surround->border.bottom.width; }
    EBorderStyle    borderBottomStyle() const {  return surround->border.bottom.style; }
    const QColor &  	    borderBottomColor() const {  return surround->border.bottom.color; }
    bool borderBottomIsTransparent() const { return surround->border.bottom.isTransparent(); }
    
    unsigned short  outlineWidth() const
    { if(background->outline.style == BNONE) return 0; return background->outline.width; }
    EBorderStyle    outlineStyle() const {  return background->outline.style; }
    const QColor &  	    outlineColor() const {  return background->outline.color; }

    EOverflow overflow() const { return  noninherited_flags._overflow; }
    bool hidesOverflow() const { return overflow() != OVISIBLE; }
    bool scrollsOverflow() const { return overflow() == OSCROLL || overflow() == OAUTO; }

    EVisibility visibility() const { return inherited_flags._visibility; }
    EVerticalAlign verticalAlign() const { return  noninherited_flags._vertical_align; }
    Length verticalAlignLength() const { return box->vertical_align; }

    Length clipLeft() const { return visual->clip.left; }
    Length clipRight() const { return visual->clip.right; }
    Length clipTop() const { return visual->clip.top; }
    Length clipBottom() const { return visual->clip.bottom; }
    bool hasClip() const { return visual->hasClip; }
    
    EUnicodeBidi unicodeBidi() const { return noninherited_flags._unicodeBidi; }

    EClear clear() const { return  noninherited_flags._clear; }
    ETableLayout tableLayout() const { return  noninherited_flags._table_layout; }

    short colSpan() const { return visual->colspan; }

    const QFont & font() const { return inherited->font.f; }
    // use with care. call font->update() after modifications
    const Font &htmlFont() { return inherited->font; }
    const QFontMetrics & fontMetrics() const { return inherited->font.fm; }

    const QColor & color() const { return inherited->color; }
    Length textIndent() const { return inherited->indent; }
    ETextAlign textAlign() const { return inherited_flags._text_align; }
    ETextTransform textTransform() const { return inherited_flags._text_transform; }
    int textDecorationsInEffect() const { return inherited_flags._text_decorations; }
    int textDecoration() const { return visual->textDecoration; }
    int wordSpacing() const { return inherited->font.wordSpacing; }
    int letterSpacing() const { return inherited->font.letterSpacing; }

    EDirection direction() const { return inherited_flags._direction; }
    Length lineHeight() const { return inherited->line_height; }

    EWhiteSpace whiteSpace() const { return inherited_flags._white_space; }


    const QColor & backgroundColor() const { return background->color; }
    CachedImage *backgroundImage() const { return background->image; }
    EBackgroundRepeat backgroundRepeat() const { return  noninherited_flags._bg_repeat; }
    bool backgroundAttachment() const { return  noninherited_flags._bg_attachment; }
    Length backgroundXPosition() const { return background->x_position; }
    Length backgroundYPosition() const { return background->y_position; }

    // returns true for collapsing borders, false for separate borders
    bool borderCollapse() const { return inherited_flags._border_collapse; }
    short borderSpacing() const { return inherited->border_spacing; }
    EEmptyCell emptyCells() const { return inherited_flags._empty_cells; }
    ECaptionSide captionSide() const { return inherited_flags._caption_side; }

    short counterIncrement() const { return visual->counter_increment; }
    short counterReset() const { return visual->counter_reset; }

    EListStyleType listStyleType() const { return inherited_flags._list_style_type; }
    CachedImage *listStyleImage() const { return inherited->style_image; }
    EListStylePosition listStylePosition() const { return inherited_flags._list_style_position; }

    Length marginTop() const { return surround->margin.top; }
    Length marginBottom() const {  return surround->margin.bottom; }
    Length marginLeft() const {  return surround->margin.left; }
    Length marginRight() const {  return surround->margin.right; }

    Length paddingTop() const {  return surround->padding.top; }
    Length paddingBottom() const {  return surround->padding.bottom; }
    Length paddingLeft() const { return surround->padding.left; }
    Length paddingRight() const {  return surround->padding.right; }

    ECursor cursor() const { return inherited_flags._cursor_style; }
    EFontVariant fontVariant() { return inherited_flags._font_variant; }

    CachedImage *cursorImage() const { return inherited->cursor_image; }


// attribute setter methods

    void setDisplay(EDisplay v) {  noninherited_flags._effectiveDisplay = v; }
    void setOriginalDisplay(EDisplay v) {  noninherited_flags._originalDisplay = v; }
    void setPosition(EPosition v) {  noninherited_flags._position = v; }
    void setFloating(EFloat v) {  noninherited_flags._floating = v; }

    void setLeft(Length v)  {  SET_VAR(surround,offset.left,v) }
    void setRight(Length v) {  SET_VAR(surround,offset.right,v) }
    void setTop(Length v)   {  SET_VAR(surround,offset.top,v) }
    void setBottom(Length v){  SET_VAR(surround,offset.bottom,v) }

    void setWidth(Length v)  { SET_VAR(box,width,v) }
    void setHeight(Length v) { SET_VAR(box,height,v) }

    void setMinWidth(Length v)  { SET_VAR(box,min_width,v) }
    void setMaxWidth(Length v)  { SET_VAR(box,max_width,v) }
    void setMinHeight(Length v) { SET_VAR(box,min_height,v) }
    void setMaxHeight(Length v) { SET_VAR(box,max_height,v) }

    void setBorderLeftWidth(unsigned short v)   {  SET_VAR(surround,border.left.width,v) }
    void setBorderLeftStyle(EBorderStyle v)     {  SET_VAR(surround,border.left.style,v) }
    void setBorderLeftColor(const QColor & v, bool t=false)
    {
       SET_VAR(surround,border.left.color,v);
       SET_VAR(surround,border.left.transparent,t)
    }
    void setBorderRightWidth(unsigned short v)  {  SET_VAR(surround,border.right.width,v) }
    void setBorderRightStyle(EBorderStyle v)    {  SET_VAR(surround,border.right.style,v) }
    void setBorderRightColor(const QColor & v, bool t=false)
    {
        SET_VAR(surround,border.right.color,v);
        SET_VAR(surround,border.right.transparent,t)
    }
    void setBorderTopWidth(unsigned short v)    {  SET_VAR(surround,border.top.width,v) }
    void setBorderTopStyle(EBorderStyle v)      {  SET_VAR(surround,border.top.style,v) }
    void setBorderTopColor(const QColor & v, bool t=false)
    {
        SET_VAR(surround,border.top.color,v);
        SET_VAR(surround,border.top.transparent,t)
    }    
    void setBorderBottomWidth(unsigned short v) {  SET_VAR(surround,border.bottom.width,v) }
    void setBorderBottomStyle(EBorderStyle v)   {  SET_VAR(surround,border.bottom.style,v) }
    void setBorderBottomColor(const QColor & v, bool t=false)
    {
        SET_VAR(surround,border.bottom.color,v);
        SET_VAR(surround,border.bottom.transparent,t)
    }    
    void setOutlineWidth(unsigned short v) {  SET_VAR(background,outline.width,v) }
    void setOutlineStyle(EBorderStyle v)   {  SET_VAR(background,outline.style,v) }
    void setOutlineColor(const QColor & v) {  SET_VAR(background,outline.color,v) }

    void setOverflow(EOverflow v) {  noninherited_flags._overflow = v; }
    void setVisibility(EVisibility v) { inherited_flags._visibility = v; }
    void setVerticalAlign(EVerticalAlign v) { noninherited_flags._vertical_align = v; }
    void setVerticalAlignLength(Length l) { SET_VAR(box, vertical_align, l ) }

    void setHasClip() { SET_VAR(visual,hasClip,true) }
    void setClipLeft(Length v) { SET_VAR(visual,clip.left,v) }
    void setClipRight(Length v) { SET_VAR(visual,clip.right,v) }
    void setClipTop(Length v) { SET_VAR(visual,clip.top,v) }
    void setClipBottom(Length v) { SET_VAR(visual,clip.bottom,v) }
    void setClip( Length top, Length right, Length bottom, Length left );
    
    void setUnicodeBidi( EUnicodeBidi b ) { noninherited_flags._unicodeBidi = b; }

    void setClear(EClear v) {  noninherited_flags._clear = v; }
    void setTableLayout(ETableLayout v) {  noninherited_flags._table_layout = v; }
    void ssetColSpan(short v) { SET_VAR(visual,colspan,v) }

    bool setFontDef(const khtml::FontDef & v) {
        // bah, this doesn't compare pointers. broken! (Dirk)
        if (!(inherited->font.fontDef == v)) {
            inherited.access()->font = Font( v );
            return true;
        }
        return false;
    }

    void setColor(const QColor & v) { SET_VAR(inherited,color,v) }
    void setTextIndent(Length v) { SET_VAR(inherited,indent,v) }
    void setTextAlign(ETextAlign v) { inherited_flags._text_align = v; }
    void setTextTransform(ETextTransform v) { inherited_flags._text_transform = v; }
    void addToTextDecorationsInEffect(int v) { inherited_flags._text_decorations |= v; }
    void setTextDecorationsInEffect(int v) { inherited_flags._text_decorations = v; }
    void setTextDecoration(int v) { SET_VAR(visual, textDecoration, v); }
    void setDirection(EDirection v) { inherited_flags._direction = v; }
    void setLineHeight(Length v) { SET_VAR(inherited,line_height,v) }

    void setWhiteSpace(EWhiteSpace v) { inherited_flags._white_space = v; }

    void setWordSpacing(int v) { SET_VAR(inherited,font.wordSpacing,v) }
    void setLetterSpacing(int v) { SET_VAR(inherited,font.letterSpacing,v) }

    void setBackgroundColor(const QColor & v) {  SET_VAR(background,color,v) }
    void setBackgroundImage(CachedImage *v) {  SET_VAR(background,image,v) }
    void setBackgroundRepeat(EBackgroundRepeat v) {  noninherited_flags._bg_repeat = v; }
    void setBackgroundAttachment(bool scroll) {  noninherited_flags._bg_attachment = scroll; }
    void setBackgroundXPosition(Length v) {  SET_VAR(background,x_position,v) }
    void setBackgroundYPosition(Length v) {  SET_VAR(background,y_position,v) }

    void setBorderCollapse(bool collapse) { inherited_flags._border_collapse = collapse; }
    void setBorderSpacing(short v) { SET_VAR(inherited,border_spacing,v) }
    void setEmptyCells(EEmptyCell v) { inherited_flags._empty_cells = v; }
    void setCaptionSide(ECaptionSide v) { inherited_flags._caption_side = v; }


    void setCounterIncrement(short v) {  SET_VAR(visual,counter_increment,v) }
    void setCounterReset(short v) {  SET_VAR(visual,counter_reset,v) }

    void setListStyleType(EListStyleType v) { inherited_flags._list_style_type = v; }
    void setListStyleImage(CachedImage *v) {  SET_VAR(inherited,style_image,v)}
    void setListStylePosition(EListStylePosition v) { inherited_flags._list_style_position = v; }

    void setMarginTop(Length v)     {  SET_VAR(surround,margin.top,v) }
    void setMarginBottom(Length v)  {  SET_VAR(surround,margin.bottom,v) }
    void setMarginLeft(Length v)    {  SET_VAR(surround,margin.left,v) }
    void setMarginRight(Length v)   {  SET_VAR(surround,margin.right,v) }

    void setPaddingTop(Length v)    {  SET_VAR(surround,padding.top,v) }
    void setPaddingBottom(Length v) {  SET_VAR(surround,padding.bottom,v) }
    void setPaddingLeft(Length v)   {  SET_VAR(surround,padding.left,v) }
    void setPaddingRight(Length v)  {  SET_VAR(surround,padding.right,v) }

    void setCursor( ECursor c ) { inherited_flags._cursor_style = c; }
    void setFontVariant( EFontVariant f ) { inherited_flags._font_variant = f; }
    void setCursorImage( CachedImage *v ) { SET_VAR(inherited,cursor_image,v) }

    bool htmlHacks() const { return inherited_flags._htmlHacks; }
    void setHtmlHacks(bool b=true) { inherited_flags._htmlHacks = b; }

    bool flowAroundFloats() const { return  noninherited_flags._flowAroundFloats; }
    void setFlowAroundFloats(bool b=true) {  noninherited_flags._flowAroundFloats = b; }

    bool hasAutoZIndex() { return box->z_auto; }
    void setHasAutoZIndex() { SET_VAR(box, z_auto, true) }
    int zIndex() const { return box->z_index; }
    void setZIndex(int v) { SET_VAR(box, z_auto, false); SET_VAR(box,z_index,v) }

    QPalette palette() const { return visual->palette; }
    void setPaletteColor(QPalette::ColorGroup g, QColorGroup::ColorRole r, const QColor& c);
    void resetPalette() // Called when the desktop color scheme changes.
    {
        const_cast<StyleVisualData *>(visual.get())->palette = QApplication::palette();
    }

    ContentData* contentData() { return content; }
    void setContent(DOM::DOMStringImpl* s, bool add = false);
    void setContent(CachedObject* o, bool add = false);

    bool inheritedNotEqual( RenderStyle *other ) const;

    enum Diff { Equal, NonVisible = Equal, Visible, Position, Layout, CbLayout };
    Diff diff( const RenderStyle *other ) const;
};


} // namespace

#endif