GHtml.h

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#ifndef _GHTML_H
#define _GHTML_H

#include "GMap.h"
#include "GDocView.h"

class GTag;
class GFontCache;

class GHtmlStatic
{
    friend class GHtmlStaticInst;
    static GHtmlStatic *Inst;

public:
    int Refs;
    GMap<char16*,int>   VarMap;
    GMap<char*,int>     StyleMap;
    GMap<char*,int>     ColourMap;

    GHtmlStatic();
    ~GHtmlStatic();
};

class GHtmlStaticInst
{
public:
    GHtmlStatic *Static;

    GHtmlStaticInst()
    {
        if (NOT GHtmlStatic::Inst)
        {
            GHtmlStatic::Inst = NEW(GHtmlStatic);
        }
        if (GHtmlStatic::Inst)
        {
            GHtmlStatic::Inst->Refs++;
        }
        Static = GHtmlStatic::Inst;
    }

    ~GHtmlStaticInst()
    {
        if (GHtmlStatic::Inst)
        {
            GHtmlStatic::Inst->Refs--;
            if (GHtmlStatic::Inst->Refs == 0)
            {
                DeleteObj(GHtmlStatic::Inst);
            }
        }
    }
};

class GHtml :
    public GDocView,
    public ResObject
{
    friend class GTag;
    friend class GFlowRegion;
    class GHtmlPrivate *d;

protected:  
    // Data
    GFontCache          *FontCache;
    GTag                *Tag;               // Tree root
    GTag                *Cursor;            // Cursor location..
    GTag                *Selection;         // Edge of selection or NULL
    List<GTag>          OpenTags;
    char                *Source;
    char                *DocCharSet;
    char                IsHtml;
    int                 ViewWidth;
    GToolTip            Tip;
    GTag                *PrevTip;
    GMap<char*,char*>   CssMap;

    // Display
    GSurface            *MemDC;

    // Methods
    void _New();
    void _Delete();
    GFont *DefFont();
    GTag *GetOpenTag(char *Tag);
    void Parse();
    void AddCss(char *Css);
    int ScrollY();
    void SetCursorVis(bool b);
    bool GetCursorVis();
    GRect *GetCursorPos();

public:
    GHtml(int Id, int x, int y, int cx, int cy, GDocumentEnv *system = 0);
    ~GHtml();

    // Html

    GTag *GetTagByPos(int x, int y, int *Index);

    // GDocView
    
    bool Copy();
    bool HasSelection();
    void UnSelectAll();
    void SelectAll();
    char *GetSelection();
    
    // Prop
    void SetLoadImages(bool i);

    // Window

    bool Name(char *s);
    char *Name();

    // Impl
    void OnPaint(GSurface *pDC);
    void OnMouseClick(GMouse &m);
    void OnMouseMove(GMouse &m);
    void OnMouseWheel(double Lines);
    bool OnKey(GKey &k);
    int OnNotify(GViewI *c, int f);
    void OnPosChange();
    void OnPulse();
    int OnEvent(GMessage *Msg);
    char *GetMimeType() { return "text/html"; }
};

enum CssStyle
{
    CSS_NULL = 0,

    // Colour
    CSS_COLOUR,
    CSS_BACKGROUND,
    CSS_BACKGROUND_COLOUR,
    CSS_BACKGROUND_REPEAT,

    // Font
    CSS_FONT,
    CSS_FONT_SIZE,
    CSS_FONT_WEIGHT,
    CSS_FONT_FAMILY,
    CSS_FONT_STYLE,

    // Dimensions
    CSS_WIDTH,
    CSS_HEIGHT,

    // Margin
    CSS_MARGIN,
    CSS_MARGIN_LEFT,
    CSS_MARGIN_RIGHT,
    CSS_MARGIN_TOP,
    CSS_MARGIN_BOTTOM,

    // Padding
    CSS_PADDING,
    CSS_PADDING_LEFT,
    CSS_PADDING_TOP,
    CSS_PADDING_RIGHT,
    CSS_PADDING_BOTTOM,

    // Border
    CSS_BORDER,
    CSS_BORDER_LEFT,
    CSS_BORDER_TOP,
    CSS_BORDER_RIGHT,
    CSS_BORDER_BOTTOM,

    // Alignment
    CSS_ALIGN,
    CSS_VERTICAL_ALIGN,
    CSS_TEXT_ALIGN,
};

enum CssAlign
{
    AlignInherit,
    AlignLeft,
    AlignCenter,
    AlignRight,
    AlignJustify,
    AlignTop,
    AlignMiddle,
    AlignBottom,
};

enum CssBackgroundRepeat
{
    BgInherit,
    BgRepeat,
    BgRepeatX,
    BgRepeatY,
    BgNoRepeat,
};


#endif

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