render_style.h

monqueror一个很具有参考价值的源玛

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

class StyleInheritedData : public SharedData
{
public:
    void setDefaultValues()
    {
	letter_spacing = 0;
	word_spacing = 0;	
	line_height = Length(100, Percent);
	indent = Length(0, Fixed);
	border_spacing = 0;
	style_image = 0;
    }

    StyleInheritedData() { setDefaultValues(); }
    virtual ~StyleInheritedData() { }

    StyleInheritedData(const StyleInheritedData& o ) : SharedData()
    {
	indent = o.indent;
	line_height = o.line_height;
	letter_spacing = o.letter_spacing;
	border_spacing = o.border_spacing;
	style_image = o.style_image;
	font = o.font;
	color = o.color;
	decoration_color = o.decoration_color;
//////////////// patched by S.G. Hwang /////////////////////
	letter_spacing = 0;
	word_spacing = 0;	
    }

    bool operator==(const StyleInheritedData& o) const
    {
    	return memcmp(this, &o, sizeof(*this))==0;
    }

    Length indent;
    Length line_height;

//////////////// patched by S.G. Hwang /////////////////////
    //unsigned int letter_spacing : 8;
    //unsigned int word_spacing : 8;
    int letter_spacing : 8;
    int word_spacing : 8;

    short border_spacing;

    MGCachedImage *style_image;

    MGFont font;
    MGColor color;
    MGColor decoration_color;

};


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 EVisiblity { VISIBLE, HIDDEN, COLLAPSE };

enum ECursor { 
    CURSOR_AUTO, CURSOR_DEFAULT, CURSOR_CROSS, 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 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:
    static void cleanup();
    
protected:

    EDisplay _display : 5;



// inherit
    bool _border_collapse : 1 ;
    EEmptyCell _empty_cells : 2 ;
    ECaptionSide _caption_side : 2;
    EListStyleType _list_style_type : 5 ;
    EListStylePosition _list_style_position :1;
    EVisiblity _visiblity : 2;
    ETextAlign _text_align : 3;
    EDirection _direction : 1;
    EWhiteSpace _white_space : 2;
    int _text_decoration : 4;
    bool _visuallyOrdered : 1;
    ECursor _cursor : 4;
    
    bool _htmlHacks :1;

// don't inherit

    EOverflow _overflow : 4 ;
    EVerticalAlign _vertical_align : 8;
    EClear _clear : 2;
    ETableLayout _table_layout : 1;
    EBackgroundRepeat _bg_repeat : 2;
    bool _bg_attachment : 1;
    EPosition _position : 2;
    EFloat _floating : 2;

    bool _flowAroundFloats :1;

    static RenderStyle* _default;

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

// inherited attributes
    DataRef<StyleInheritedData> inherited;

    static const MGColor undefinedColor;

    void setBitDefaults();

public:
    RenderStyle();
    // used to create the default style.
    RenderStyle(bool _default);
    RenderStyle(const RenderStyle&);
    RenderStyle(const RenderStyle* inheritParent);
    ~RenderStyle();

    bool operator==(const RenderStyle& other) const;
    void mergeData(RenderStyle* other);

    static int counter;

    /**
     * Intantiates new style object following the
     * css2 inheritance rules.
     */
    RenderStyle* inheritFrom(RenderStyle* inherit);

    bool        isFloating() const { return (_floating == FLEFT || _floating == FRIGHT); }
    bool        hasMargin() const { return surround->margin.nonZero(); }
    bool        hasPadding() const { return surround->padding.nonZero(); }
    bool        hasBorder() const { return surround->border.hasBorder(); }
    bool        hasOffset() const { return surround->offset.nonZero(); }

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

// attribute getter methods

    EDisplay 	display() const { return _display; }

    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 _position; }
    EFloat  	floating() const { return _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 MGColor &  borderLeftColor() const { return surround->border.left.color; }
    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 MGColor &  	    borderRightColor() const {  return surround->border.right.color; }
    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 MGColor &  borderTopColor() const {  return surround->border.top.color; }
    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 MGColor &  	    borderBottomColor() const {  return surround->border.bottom.color; }

    EOverflow overflow() const { return _overflow; }
    EVisiblity visiblity() const { return _visiblity; }
    EVerticalAlign verticalAlign() const { return _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; }
    EClear clear() const { return _clear; }
    ETableLayout inheritedLayout() const { return _table_layout; }

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

    const MGFont & font() const { return inherited->font; }

    const MGColor & color() const { return inherited->color; }
    Length textIndent() const { return inherited->indent; }
    ETextAlign textAlign() const { return _text_align; }
    int textDecoration() const { return _text_decoration; }
    const MGColor &textDecorationColor() const { return inherited->decoration_color; }
    int wordSpacing() const { return inherited->word_spacing; }
    int letterSpacing() const { return inherited->letter_spacing; }

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

    EWhiteSpace whiteSpace() const { return _white_space; }


    const MGColor & backgroundColor() const { return background->color; }
    MGCachedImage *backgroundImage() const { return background->image; }
    EBackgroundRepeat backgroundRepeat() const { return _bg_repeat; }
    // backgroundAttachment returns true for scrolling (regular) attachment, false for fixed
    bool backgroundAttachment() const { return _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 _border_collapse; }
    short borderSpacing() const { return inherited->border_spacing; }
    EEmptyCell emptyCells() const { return _empty_cells; }
    ECaptionSide captionSide() const { return _caption_side; }

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

    EListStyleType listStyleType() const { return _list_style_type; }
    MGCachedImage *listStyleImage() const { return inherited->style_image; }
    EListStylePosition listStylePosition() const { return _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 _cursor; }
    
// attribute setter methods

    void setDisplay(EDisplay v) { _display = v; }
    void setPosition(EPosition v) { _position = v; }
    void setFloating(EFloat v) { _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 MGColor & v)   {  SET_VAR(surround,border.left.color,v) }    
    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 MGColor & v)  {  SET_VAR(surround,border.right.color,v) }    
    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 MGColor & v)    {  SET_VAR(surround,border.top.color,v) }    
    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 MGColor & v) {  SET_VAR(surround,border.bottom.color,v) }

    void setOverflow(EOverflow v) { _overflow = v; }
    void setVisiblity(EVisiblity v) { _visiblity = v; }
    void setVerticalAlign(EVerticalAlign v) { _vertical_align = v; }
    
    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 setClear(EClear v) { _clear = v; }
    void setTableLayout(ETableLayout v) { _table_layout = v; }
    void setColSpan(short v) { SET_VAR(visual,colspan,v) }

    void setFont(const MGFont & v) { SET_VAR(inherited,font,v) }

    void setColor(const MGColor & v) { SET_VAR(inherited,color,v) }
    void setTextIndent(Length v) { SET_VAR(inherited,indent,v) }
    void setTextAlign(ETextAlign v) { _text_align = v; }
    void setTextDecoration(int v) { _text_decoration = v; }
    void setTextDecorationColor(const MGColor &v) { SET_VAR(inherited,decoration_color,v) }
    void setDirection(EDirection v) { _direction = v; }
    void setLineHeight(Length v) { SET_VAR(inherited,line_height,v) }

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

    void setWordSpacing(int v) { SET_VAR(inherited,word_spacing,v) }
    void setLetterSpacing(int v) { SET_VAR(inherited,letter_spacing,v) }

    void setBackgroundColor(const MGColor & v) { SET_VAR(background,color,v) }
    void setBackgroundImage(MGCachedImage *v) { SET_VAR(background,image,v) }
    void setBackgroundRepeat(EBackgroundRepeat v) {  _bg_repeat = v; }
    void setBackgroundAttachment(bool scroll) {  _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) { _border_collapse = collapse; }
    void setBorderSpacing(short v) { SET_VAR(inherited,border_spacing,v) }
    void setEmptyCells(EEmptyCell v) { _empty_cells = v; }
    void setCaptionSide(ECaptionSide v) { _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) {  _list_style_type = v; }
    void setListStyleImage(MGCachedImage *v) {  SET_VAR(inherited,style_image,v)}
    void setListStylePosition(EListStylePosition v) {  _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 ) { _cursor = c; }
    
    bool htmlHacks() const { return _htmlHacks; }
    void setHtmlHacks(bool b=true) { _htmlHacks = b; }

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

    int zIndex() const { return box->z_index; }
    void setZIndex(int v) { SET_VAR(box,z_index,v) }
    

    
};

} // namespace

#endif