[wxWidgets.git] / include / wx / html / htmlcell.h

/////////////////////////////////////////////////////////////////////////////
// Name:        htmlcell.h
// Purpose:     wxHtmlCell class is used by wxHtmlWindow/wxHtmlWinParser
//              as a basic visual element of HTML page
// Author:      Vaclav Slavik
// RCS-ID:      $Id$
// Copyright:   (c) 1999 Vaclav Slavik
// Licence:     wxWindows Licence
/////////////////////////////////////////////////////////////////////////////


#ifndef _WX_HTMLCELL_H_
#define _WX_HTMLCELL_H_

#ifdef __GNUG__
#pragma interface
#endif

#include "wx/defs.h"

#if wxUSE_HTML

#include "wx/html/htmltag.h"
#include "wx/html/htmldefs.h"
#include "wx/window.h"

class wxHtmlCell;
class wxHtmlContainerCell;

//--------------------------------------------------------------------------------
// wxHtmlCell
//                  Internal data structure. It represents fragments of parsed HTML
//                  page - a word, picture, table, horizontal line and so on.
//                  It is used by wxHtmlWindow to represent HTML page in memory.
//--------------------------------------------------------------------------------


class WXDLLEXPORT wxHtmlCell : public wxObject
{
    public:
        wxHtmlCell() : wxObject() {m_Next = NULL; m_Parent = NULL; m_Width = m_Height = m_Descent = 0;};
        virtual ~wxHtmlCell() {if (m_Next) delete m_Next;};

        void SetParent(wxHtmlContainerCell *p) {m_Parent = p;}
        wxHtmlContainerCell *GetParent() const {return m_Parent;}

        int GetPosX() const {return m_PosX;}
        int GetPosY() const {return m_PosY;}
        int GetWidth() const {return m_Width;}
        int GetHeight() const {return m_Height;}
        int GetDescent() const {return m_Descent;}
        virtual wxString GetLink(int WXUNUSED(x) = 0,
                                 int WXUNUSED(y) = 0) const
            { return m_Link; }
                // returns the link associated with this cell. The position is position within
                // the cell so it varies from 0 to m_Width, from 0 to m_Height
        wxHtmlCell *GetNext() const {return m_Next;}
                // members access methods

        virtual void SetPos(int x, int y) {m_PosX = x, m_PosY = y;}
        void SetLink(const wxString& link) {m_Link = link;}
        void SetNext(wxHtmlCell *cell) {m_Next = cell;}
                // members writin methods

        virtual void Layout(int w) {SetPos(0, 0); if (m_Next) m_Next -> Layout(w);};
                // 1. adjust cell's width according to the fact that maximal possible width is w.
                //    (this has sense when working with horizontal lines, tables etc.)
                // 2. prepare layout (=fill-in m_PosX, m_PosY (and sometime m_Height) members)
                //    = place items to fit window, according to the width w

        virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2) {if (m_Next) m_Next -> Draw(dc, x, y, view_y1, view_y2);}
                // renders the cell

        virtual void DrawInvisible(wxDC& dc, int x, int y) {if (m_Next) m_Next -> DrawInvisible(dc, x, y);};
                // proceed drawing actions in case the cell is not visible (scrolled out of screen).
                // This is needed to change fonts, colors and so on

        virtual const wxHtmlCell* Find(int condition, const void* param) const {if (m_Next) return m_Next -> Find(condition, param); else return NULL;}
                // This method returns pointer to the FIRST cell for that
                // the condition
                // is true. It first checks if the condition is true for this
                // cell and then calls m_Next -> Find(). (Note: it checks
                // all subcells if the cell is container)
                // Condition is unique condition identifier (see htmldefs.h)
                // (user-defined condition IDs should start from 10000)
                // and param is optional parameter
                // Example : m_Cell -> Find(HTML_COND_ISANCHOR, "news");
                //   returns pointer to anchor news

        virtual void OnMouseClick(wxWindow *parent, int x, int y, bool left, bool middle, bool right);
                // This function is called when mouse button is clicked over the cell.
                // left, middle, right are flags indicating whether the button was or wasn't
                // pressed.
                // Parent is pointer to wxHtmlWindow that generated the event
                // HINT: if this handling is not enough for you you should use
                //       wxHtmlBinderCell


    protected:
        wxHtmlCell *m_Next;
                // pointer to the next cell
        wxHtmlContainerCell *m_Parent;
            // pointer to parent cell
        long m_Width, m_Height, m_Descent;
                // dimensions of fragment
                // m_Descent is used to position text&images..
        long m_PosX, m_PosY;
                // position where the fragment is drawn
        wxString m_Link;
                // destination address if this fragment is hypertext link, "" otherwise

};


//--------------------------------------------------------------------------------
// Inherited cells:
//--------------------------------------------------------------------------------


//--------------------------------------------------------------------------------
// wxHtmlWordCell
//                  Single word in input stream.
//--------------------------------------------------------------------------------

class WXDLLEXPORT wxHtmlWordCell : public wxHtmlCell
{
    protected:
        wxString m_Word;

    public:
        wxHtmlWordCell(const wxString& word, wxDC& dc);
        void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
};


//--------------------------------------------------------------------------------
// wxHtmlContainerCell
//                  Container - it contains other cells. Basic of layout algorithm.
//--------------------------------------------------------------------------------

class WXDLLEXPORT wxHtmlContainerCell : public wxHtmlCell
{
    protected:
        int m_IndentLeft, m_IndentRight, m_IndentTop, m_IndentBottom;
                // indentation of subcells. There is always m_Indent pixels
                // big space between given border of the container and the subcells
                // it m_Indent < 0 it is in PERCENTS, otherwise it is in pixels
        int m_MinHeight, m_MinHeightAlign;
            // minimal height.
        int m_MaxLineWidth;
            // maximal widht of line. Filled during Layout()
        wxHtmlCell *m_Cells, *m_LastCell;
                // internal cells, m_Cells points to the first of them, m_LastCell to the last one.
                // (LastCell is needed only to speed-up InsertCell)
        int m_AlignHor, m_AlignVer;
                // alignment horizontal and vertical (left, center, right)
        int m_WidthFloat, m_WidthFloatUnits;
                // width float is used in adjustWidth
        bool m_UseBkColour;
        wxColour m_BkColour;
                // background color of this container
        bool m_UseBorder;
        wxColour m_BorderColour1, m_BorderColour2;
                // borders color of this container

    public:
        wxHtmlContainerCell(wxHtmlContainerCell *parent);
        ~wxHtmlContainerCell() {if (m_Cells) delete m_Cells;}

        virtual void Layout(int w);
        virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
        virtual void DrawInvisible(wxDC& dc, int x, int y);

        void InsertCell(wxHtmlCell *cell);
                // insert cell at the end of m_Cells list
        void SetAlignHor(int al) {m_AlignHor = al;}
        int GetAlignHor() const {return m_AlignHor;}
        void SetAlignVer(int al) {m_AlignVer = al;}
                // sets horizontal/vertical alignment
        int GetAlignVer() const {return m_AlignVer;}
        void SetIndent(int i, int what, int units = HTML_UNITS_PIXELS);
                // sets left-border indentation. units is one of HTML_UNITS_* constants
                // what is combination of HTML_INDENT_*
        int GetIndent(int ind) const;
                // returns the indentation. ind is one of HTML_INDENT_* constants
        int GetIndentUnits(int ind) const;
                // returns type of value returned by GetIndent(ind)
        void SetAlign(const wxHtmlTag& tag);
                // sets alignment info based on given tag's params
        void SetWidthFloat(int w, int units) {m_WidthFloat = w; m_WidthFloatUnits = units;}
        void SetWidthFloat(const wxHtmlTag& tag);
                // sets floating width adjustment
                // (examples : 32 percent of parent container,
                // -15 pixels percent (this means 100 % - 15 pixels)
        void SetMinHeight(int h, int align = HTML_ALIGN_TOP) {m_MinHeight = h; m_MinHeightAlign = align;}
                // sets minimal height of this container.
        int GetMaxLineWidth() const {return m_MaxLineWidth;}
            // returns maximal line width in this container.
            // Call to this method is valid only after calling
            // Layout()
        void SetBackgroundColour(const wxColour& clr) {m_UseBkColour = TRUE; m_BkColour = clr;}
        void SetBorder(const wxColour& clr1, const wxColour& clr2) {m_UseBorder = TRUE; m_BorderColour1 = clr1, m_BorderColour2 = clr2;}
        virtual wxString GetLink(int x = 0, int y = 0) const;
        virtual const wxHtmlCell* Find(int condition, const void* param) const;
        virtual void OnMouseClick(wxWindow *parent, int x, int y, bool left, bool middle, bool right);

        wxHtmlCell* GetFirstCell() {return m_Cells;}
                // returns pointer to the first cell in container or NULL
};


//--------------------------------------------------------------------------------
// wxHtmlColourCell
//                  Color changer.
//--------------------------------------------------------------------------------

class WXDLLEXPORT wxHtmlColourCell : public wxHtmlCell
{
    public:
        wxColour m_Colour;
        unsigned m_Flags;

        wxHtmlColourCell(wxColour clr, int flags = HTML_CLR_FOREGROUND) : wxHtmlCell() {m_Colour = clr; m_Flags = flags;}
        virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
        virtual void DrawInvisible(wxDC& dc, int x, int y);
};


//--------------------------------------------------------------------------------
// wxHtmlFontCell
//                  Sets actual font used for text rendering
//--------------------------------------------------------------------------------

class WXDLLEXPORT wxHtmlFontCell : public wxHtmlCell
{
    public:
        wxFont *m_Font;

        wxHtmlFontCell(wxFont *font) : wxHtmlCell() {m_Font = font;};
        virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
        virtual void DrawInvisible(wxDC& dc, int x, int y);
};


//--------------------------------------------------------------------------------
// wxHtmlwidgetCell
//                  This cell is connected with wxWindow object
//                  You can use it to insert windows into HTML page
//                  (buttons, input boxes etc.)
//--------------------------------------------------------------------------------

class WXDLLEXPORT wxHtmlWidgetCell : public wxHtmlCell
{
    protected:
        wxWindow* m_Wnd;
        int m_WidthFloat;
                // width float is used in adjustWidth (it is in percents)

    public:
        wxHtmlWidgetCell(wxWindow *wnd, int w = 0);
                // !!! wnd must have correct parent!
                // if w != 0 then the m_Wnd has 'floating' width - it adjust
                // it's width according to parent container's width
                // (w is percent of parent's width)
        ~wxHtmlWidgetCell() {if (m_Wnd) m_Wnd -> Destroy(); }
        virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
        virtual void DrawInvisible(wxDC& dc, int x, int y);
        virtual void Layout(int w);
};


#endif

#endif // _WX_HTMLCELL_H_
Commit	Line	Data
5526e819 VS	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: htmlcell.h
	3	// Purpose: wxHtmlCell class is used by wxHtmlWindow/wxHtmlWinParser
	4	// as a basic visual element of HTML page
	5	// Author: Vaclav Slavik
69941f05	6	// RCS-ID: $Id$
5526e819 VS	7	// Copyright: (c) 1999 Vaclav Slavik
	8	// Licence: wxWindows Licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11
69941f05 VS	12	#ifndef _WX_HTMLCELL_H_
69941f05 VS	13	#define _WX_HTMLCELL_H_
5526e819 VS	14
5526e819 VS	15	#ifdef __GNUG__
69941f05	16	#pragma interface
5526e819 VS	17	#endif
	18
	19	#include "wx/defs.h"
5526e819	20
4dcaf11a	21	#if wxUSE_HTML
5526e819	22
4dcaf11a RR	23	#include "wx/html/htmltag.h"
	24	#include "wx/html/htmldefs.h"
	25	#include "wx/window.h"
5526e819 VS	26
	27	class wxHtmlCell;
	28	class wxHtmlContainerCell;
	29
	30	//--------------------------------------------------------------------------------
	31	// wxHtmlCell
	32	// Internal data structure. It represents fragments of parsed HTML
	33	// page - a word, picture, table, horizontal line and so on.
	34	// It is used by wxHtmlWindow to represent HTML page in memory.
	35	//--------------------------------------------------------------------------------
	36
	37
	38	class WXDLLEXPORT wxHtmlCell : public wxObject
	39	{
5526e819 VS	40	public:
	41	wxHtmlCell() : wxObject() {m_Next = NULL; m_Parent = NULL; m_Width = m_Height = m_Descent = 0;};
	42	virtual ~wxHtmlCell() {if (m_Next) delete m_Next;};
6e31e940	43
5526e819 VS	44	void SetParent(wxHtmlContainerCell *p) {m_Parent = p;}
5526e819 VS	45	wxHtmlContainerCell *GetParent() const {return m_Parent;}
6e31e940	46
5526e819 VS	47	int GetPosX() const {return m_PosX;}
	48	int GetPosY() const {return m_PosY;}
	49	int GetWidth() const {return m_Width;}
	50	int GetHeight() const {return m_Height;}
	51	int GetDescent() const {return m_Descent;}
6e31e940 VZ	52	virtual wxString GetLink(int WXUNUSED(x) = 0,
	53	int WXUNUSED(y) = 0) const
	54	{ return m_Link; }
5526e819 VS	55	// returns the link associated with this cell. The position is position within
	56	// the cell so it varies from 0 to m_Width, from 0 to m_Height
	57	wxHtmlCell *GetNext() const {return m_Next;}
	58	// members access methods
	59
	60	virtual void SetPos(int x, int y) {m_PosX = x, m_PosY = y;}
	61	void SetLink(const wxString& link) {m_Link = link;}
	62	void SetNext(wxHtmlCell *cell) {m_Next = cell;}
	63	// members writin methods
	64
	65	virtual void Layout(int w) {SetPos(0, 0); if (m_Next) m_Next -> Layout(w);};
	66	// 1. adjust cell's width according to the fact that maximal possible width is w.
	67	// (this has sense when working with horizontal lines, tables etc.)
	68	// 2. prepare layout (=fill-in m_PosX, m_PosY (and sometime m_Height) members)
	69	// = place items to fit window, according to the width w
	70
	71	virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2) {if (m_Next) m_Next -> Draw(dc, x, y, view_y1, view_y2);}
	72	// renders the cell
	73
	74	virtual void DrawInvisible(wxDC& dc, int x, int y) {if (m_Next) m_Next -> DrawInvisible(dc, x, y);};
	75	// proceed drawing actions in case the cell is not visible (scrolled out of screen).
	76	// This is needed to change fonts, colors and so on
6e31e940	77
5526e819 VS	78	virtual const wxHtmlCell* Find(int condition, const void* param) const {if (m_Next) return m_Next -> Find(condition, param); else return NULL;}
	79	// This method returns pointer to the FIRST cell for that
	80	// the condition
	81	// is true. It first checks if the condition is true for this
	82	// cell and then calls m_Next -> Find(). (Note: it checks
	83	// all subcells if the cell is container)
	84	// Condition is unique condition identifier (see htmldefs.h)
	85	// (user-defined condition IDs should start from 10000)
	86	// and param is optional parameter
	87	// Example : m_Cell -> Find(HTML_COND_ISANCHOR, "news");
	88	// returns pointer to anchor news
	89
	90	virtual void OnMouseClick(wxWindow *parent, int x, int y, bool left, bool middle, bool right);
	91	// This function is called when mouse button is clicked over the cell.
	92	// left, middle, right are flags indicating whether the button was or wasn't
	93	// pressed.
	94	// Parent is pointer to wxHtmlWindow that generated the event
	95	// HINT: if this handling is not enough for you you should use
	96	// wxHtmlBinderCell
69941f05 VS	97
	98
	99	protected:
	100	wxHtmlCell *m_Next;
	101	// pointer to the next cell
	102	wxHtmlContainerCell *m_Parent;
	103	// pointer to parent cell
	104	long m_Width, m_Height, m_Descent;
	105	// dimensions of fragment
	106	// m_Descent is used to position text&images..
	107	long m_PosX, m_PosY;
	108	// position where the fragment is drawn
	109	wxString m_Link;
	110	// destination address if this fragment is hypertext link, "" otherwise
	111
5526e819 VS	112	};
	113
	114
	115
	116
	117	//--------------------------------------------------------------------------------
	118	// Inherited cells:
	119	//--------------------------------------------------------------------------------
	120
	121
	122	//--------------------------------------------------------------------------------
	123	// wxHtmlWordCell
	124	// Single word in input stream.
	125	//--------------------------------------------------------------------------------
	126
	127	class WXDLLEXPORT wxHtmlWordCell : public wxHtmlCell
	128	{
	129	protected:
	130	wxString m_Word;
	131
	132	public:
	133	wxHtmlWordCell(const wxString& word, wxDC& dc);
	134	void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
	135	};
	136
	137
	138
	139
	140
	141	//--------------------------------------------------------------------------------
	142	// wxHtmlContainerCell
	143	// Container - it contains other cells. Basic of layout algorithm.
	144	//--------------------------------------------------------------------------------
	145
	146	class WXDLLEXPORT wxHtmlContainerCell : public wxHtmlCell
	147	{
	148	protected:
	149	int m_IndentLeft, m_IndentRight, m_IndentTop, m_IndentBottom;
	150	// indentation of subcells. There is always m_Indent pixels
	151	// big space between given border of the container and the subcells
	152	// it m_Indent < 0 it is in PERCENTS, otherwise it is in pixels
	153	int m_MinHeight, m_MinHeightAlign;
	154	// minimal height.
	155	int m_MaxLineWidth;
	156	// maximal widht of line. Filled during Layout()
	157	wxHtmlCell m_Cells, m_LastCell;
	158	// internal cells, m_Cells points to the first of them, m_LastCell to the last one.
	159	// (LastCell is needed only to speed-up InsertCell)
	160	int m_AlignHor, m_AlignVer;
	161	// alignment horizontal and vertical (left, center, right)
	162	int m_WidthFloat, m_WidthFloatUnits;
	163	// width float is used in adjustWidth
	164	bool m_UseBkColour;
	165	wxColour m_BkColour;
	166	// background color of this container
	167	bool m_UseBorder;
	168	wxColour m_BorderColour1, m_BorderColour2;
	169	// borders color of this container
	170
	171	public:
	172	wxHtmlContainerCell(wxHtmlContainerCell *parent);
	173	~wxHtmlContainerCell() {if (m_Cells) delete m_Cells;}
	174
	175	virtual void Layout(int w);
176	virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
177	virtual void DrawInvisible(wxDC& dc, int x, int y);
6e31e940	178
5526e819 VS	179	void InsertCell(wxHtmlCell *cell);
	180	// insert cell at the end of m_Cells list
	181	void SetAlignHor(int al) {m_AlignHor = al;}
	182	int GetAlignHor() const {return m_AlignHor;}
	183	void SetAlignVer(int al) {m_AlignVer = al;}
	184	// sets horizontal/vertical alignment
	185	int GetAlignVer() const {return m_AlignVer;}
	186	void SetIndent(int i, int what, int units = HTML_UNITS_PIXELS);
	187	// sets left-border indentation. units is one of HTML_UNITS_* constants
	188	// what is combination of HTML_INDENT_*
	189	int GetIndent(int ind) const;
	190	// returns the indentation. ind is one of HTML_INDENT_* constants
	191	int GetIndentUnits(int ind) const;
	192	// returns type of value returned by GetIndent(ind)
	193	void SetAlign(const wxHtmlTag& tag);
	194	// sets alignment info based on given tag's params
	195	void SetWidthFloat(int w, int units) {m_WidthFloat = w; m_WidthFloatUnits = units;}
	196	void SetWidthFloat(const wxHtmlTag& tag);
	197	// sets floating width adjustment
	198	// (examples : 32 percent of parent container,
	199	// -15 pixels percent (this means 100 % - 15 pixels)
	200	void SetMinHeight(int h, int align = HTML_ALIGN_TOP) {m_MinHeight = h; m_MinHeightAlign = align;}
	201	// sets minimal height of this container.
	202	int GetMaxLineWidth() const {return m_MaxLineWidth;}
	203	// returns maximal line width in this container.
	204	// Call to this method is valid only after calling
	205	// Layout()
	206	void SetBackgroundColour(const wxColour& clr) {m_UseBkColour = TRUE; m_BkColour = clr;}
	207	void SetBorder(const wxColour& clr1, const wxColour& clr2) {m_UseBorder = TRUE; m_BorderColour1 = clr1, m_BorderColour2 = clr2;}
	208	virtual wxString GetLink(int x = 0, int y = 0) const;
	209	virtual const wxHtmlCell* Find(int condition, const void* param) const;
	210	virtual void OnMouseClick(wxWindow *parent, int x, int y, bool left, bool middle, bool right);
	211
	212	wxHtmlCell* GetFirstCell() {return m_Cells;}
	213	// returns pointer to the first cell in container or NULL
	214	};
	215
	216
	217
	218
	219
	220	//--------------------------------------------------------------------------------
	221	// wxHtmlColourCell
	222	// Color changer.
	223	//--------------------------------------------------------------------------------
	224
	225	class WXDLLEXPORT wxHtmlColourCell : public wxHtmlCell
	226	{
	227	public:
	228	wxColour m_Colour;
	229	unsigned m_Flags;
	230
	231	wxHtmlColourCell(wxColour clr, int flags = HTML_CLR_FOREGROUND) : wxHtmlCell() {m_Colour = clr; m_Flags = flags;}
	232	virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
	233	virtual void DrawInvisible(wxDC& dc, int x, int y);
	234	};
	235
	236
	237
	238
	239	//--------------------------------------------------------------------------------
	240	// wxHtmlFontCell
	241	// Sets actual font used for text rendering
	242	//--------------------------------------------------------------------------------
243
244	class WXDLLEXPORT wxHtmlFontCell : public wxHtmlCell
245	{
246	public:
247	wxFont *m_Font;
248
249	wxHtmlFontCell(wxFont *font) : wxHtmlCell() {m_Font = font;};
250	virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
251	virtual void DrawInvisible(wxDC& dc, int x, int y);
252	};
253
254
255
256
257
258
259	//--------------------------------------------------------------------------------
260	// wxHtmlwidgetCell
261	// This cell is connected with wxWindow object
262	// You can use it to insert windows into HTML page
263	// (buttons, input boxes etc.)
264	//--------------------------------------------------------------------------------
265
266	class WXDLLEXPORT wxHtmlWidgetCell : public wxHtmlCell
267	{
268	protected:
269	wxWindow* m_Wnd;
270	int m_WidthFloat;
271	// width float is used in adjustWidth (it is in percents)
272
273	public:
274	wxHtmlWidgetCell(wxWindow *wnd, int w = 0);
275	// !!! wnd must have correct parent!
276	// if w != 0 then the m_Wnd has 'floating' width - it adjust
277	// it's width according to parent container's width
278	// (w is percent of parent's width)
c32cfa36	279	~wxHtmlWidgetCell() {if (m_Wnd) m_Wnd -> Destroy(); }
5526e819 VS	280	virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
	281	virtual void DrawInvisible(wxDC& dc, int x, int y);
	282	virtual void Layout(int w);
	283	};
	284
	285
	286
5526e819 VS	287	#endif
5526e819 VS	288
69941f05	289	#endif // _WX_HTMLCELL_H_
5526e819	290