src/html/m_tables.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        m_tables.cpp
// Purpose:     wxHtml module for tables
// Author:      Vaclav Slavik
// RCS-ID:      $Id$
// Copyright:   (c) 1999 Vaclav Slavik
// Licence:     wxWindows Licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation
#endif

#include "wx/wxprec.h"

#include "wx/defs.h"
#if wxUSE_HTML && wxUSE_STREAMS
#ifdef __BORDLANDC__
#pragma hdrstop
#endif

#ifndef WXPRECOMP
#endif


/*
REMARKS:
    1. This version of m_tables doesn't support auto-layout algorithm.
       This means that all columns are of same width unless explicitly specified.
*/


#include "wx/html/forcelnk.h"
#include "wx/html/m_templ.h"

#include "wx/html/htmlcell.h"

FORCE_LINK_ME(m_tables)


#define TABLE_BORDER_CLR_1  wxColour(0xC5, 0xC2, 0xC5)
#define TABLE_BORDER_CLR_2  wxColour(0x62, 0x61, 0x62)


//-----------------------------------------------------------------------------
// wxHtmlTableCell
//-----------------------------------------------------------------------------


typedef struct {
        int width, units;
                // universal
        int leftpos, pixwidth, maxrealwidth;
                // temporary (depends on width of table)
    } colStruct;

typedef enum {
        cellSpan,
        cellUsed,
        cellFree
    } cellState;

typedef struct {
        wxHtmlContainerCell *cont;
        int colspan, rowspan;
        int minheight, valign;
        cellState flag;
    } cellStruct;


class wxHtmlTableCell : public wxHtmlContainerCell
{
    protected:
        /* These are real attributes: */
        bool m_HasBorders;
                // should we draw borders or not?
        int m_NumCols, m_NumRows;
                // number of columns; rows
        colStruct *m_ColsInfo;
                // array of column information
        cellStruct **m_CellInfo;
                // 2D array of all cells in the table : m_CellInfo[row][column]
        int m_Spacing;
                // spaces between cells
        int m_Padding;
                // cells internal indentation

    private:
        /* ...and these are valid only during parsing of table: */
        int m_ActualCol, m_ActualRow;
                // number of actual column (ranging from 0..m_NumCols)

        // default values (for table and row):
        wxColour m_tBkg, m_rBkg;
        wxString m_tValign, m_rValign;

        double m_PixelScale;


    public:
        wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag, double pixel_scale = 1.0);
        ~wxHtmlTableCell();
        virtual void Layout(int w);

        void AddRow(const wxHtmlTag& tag);
        void AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag);
    private:
        void ReallocCols(int cols);
        void ReallocRows(int rows);
                // reallocates memory to given number of cols/rows
                // and changes m_NumCols/m_NumRows value to reflect this change
                // NOTE! You CAN'T change m_NumCols/m_NumRows before calling this!!
};


wxHtmlTableCell::wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag, double pixel_scale)
 : wxHtmlContainerCell(parent)
{
    m_PixelScale = pixel_scale;
    m_HasBorders =
            (tag.HasParam(wxT("BORDER")) && tag.GetParam(wxT("BORDER")) != wxT("0"));
    m_ColsInfo = NULL;
    m_NumCols = m_NumRows = 0;
    m_CellInfo = NULL;
    m_ActualCol = m_ActualRow = -1;

    /* scan params: */
    if (tag.HasParam(wxT("BGCOLOR")))
        tag.GetParamAsColour(wxT("BGCOLOR"), &m_tBkg);
    if (tag.HasParam(wxT("VALIGN")))
        m_tValign = tag.GetParam(wxT("VALIGN"));
    else
        m_tValign = wxEmptyString;
    if (!tag.GetParamAsInt(wxT("CELLSPACING"), &m_Spacing))
        m_Spacing = 2;
    if (!tag.GetParamAsInt(wxT("CELLPADDING"), &m_Padding))
        m_Padding = 3;
    m_Spacing = (int)(m_PixelScale * (double)m_Spacing);
    m_Padding = (int)(m_PixelScale * (double)m_Padding);

    if (m_HasBorders)
        SetBorder(TABLE_BORDER_CLR_1, TABLE_BORDER_CLR_2);
}


wxHtmlTableCell::~wxHtmlTableCell()
{
    if (m_ColsInfo) free(m_ColsInfo);
    if (m_CellInfo)
    {
        for (int i = 0; i < m_NumRows; i++)
            free(m_CellInfo[i]);
        free(m_CellInfo);
    }
}


void wxHtmlTableCell::ReallocCols(int cols)
{
    int i,j;

    for (i = 0; i < m_NumRows; i++)
    {
        m_CellInfo[i] = (cellStruct*) realloc(m_CellInfo[i], sizeof(cellStruct) * cols);
        for (j = m_NumCols; j < cols; j++)
            m_CellInfo[i][j].flag = cellFree;
    }

    m_ColsInfo = (colStruct*) realloc(m_ColsInfo, sizeof(colStruct) * cols);
    for (j = m_NumCols; j < cols; j++)
    {
           m_ColsInfo[j].width = 0;
           m_ColsInfo[j].units = wxHTML_UNITS_PERCENT;
    }

    m_NumCols = cols;
}


void wxHtmlTableCell::ReallocRows(int rows)
{
    m_CellInfo = (cellStruct**) realloc(m_CellInfo, sizeof(cellStruct*) * rows);
    for (int row = m_NumRows; row < rows ; row++)
    {
        if (m_NumCols == 0)
            m_CellInfo[row] = NULL;
        else
        {
            m_CellInfo[row] = (cellStruct*) malloc(sizeof(cellStruct) * m_NumCols);
            for (int col = 0; col < m_NumCols; col++)
                m_CellInfo[row][col].flag = cellFree;
        }
    }
    m_NumRows = rows;
}


void wxHtmlTableCell::AddRow(const wxHtmlTag& tag)
{
    m_ActualCol = -1;
    // VS: real allocation of row entry is done in AddCell in order
    //     to correctly handle empty rows (i.e. "<tr></tr>")
    //     m_ActualCol == -1 indicates that AddCell has to allocate new row.

    // scan params:
    m_rBkg = m_tBkg;
    if (tag.HasParam(wxT("BGCOLOR")))
        tag.GetParamAsColour(wxT("BGCOLOR"), &m_rBkg);
    if (tag.HasParam(wxT("VALIGN")))
        m_rValign = tag.GetParam(wxT("VALIGN"));
    else
        m_rValign = m_tValign;
}


void wxHtmlTableCell::AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag)
{
    // Is this cell in new row?
    // VS: we can't do it in AddRow, see my comment there
    if (m_ActualCol == -1)
    {
        if (m_ActualRow + 1 > m_NumRows - 1)
            ReallocRows(m_ActualRow + 2);
        m_ActualRow++;
    }

    // cells & columns:
    do
    {
        m_ActualCol++;
    } while ((m_ActualCol < m_NumCols) &&
             (m_CellInfo[m_ActualRow][m_ActualCol].flag != cellFree));

    if (m_ActualCol > m_NumCols - 1)
        ReallocCols(m_ActualCol + 1);

    int r = m_ActualRow, c = m_ActualCol;

    m_CellInfo[r][c].cont = cell;
    m_CellInfo[r][c].colspan = 1;
    m_CellInfo[r][c].rowspan = 1;
    m_CellInfo[r][c].flag = cellUsed;
    m_CellInfo[r][c].minheight = 0;
    m_CellInfo[r][c].valign = wxHTML_ALIGN_TOP;

    /* scan for parameters: */

    // width:
    {
        if (tag.HasParam(wxT("WIDTH")))
        {
            wxString wd = tag.GetParam(wxT("WIDTH"));

            if (wd[wd.Length()-1] == wxT('%'))
            {
                wxSscanf(wd.c_str(), wxT("%i%%"), &m_ColsInfo[c].width);
                m_ColsInfo[c].units = wxHTML_UNITS_PERCENT;
            }
            else
            {
                wxSscanf(wd.c_str(), wxT("%i"), &m_ColsInfo[c].width);
                m_ColsInfo[c].width = (int)(m_PixelScale * (double)m_ColsInfo[c].width);
                m_ColsInfo[c].units = wxHTML_UNITS_PIXELS;
            }
        }
    }


    // spanning:
    {
        tag.GetParamAsInt(wxT("COLSPAN"), &m_CellInfo[r][c].colspan);
        tag.GetParamAsInt(wxT("ROWSPAN"), &m_CellInfo[r][c].rowspan);
        if ((m_CellInfo[r][c].colspan != 1) || (m_CellInfo[r][c].rowspan != 1))
        {
            int i, j;

            if (r + m_CellInfo[r][c].rowspan > m_NumRows)
                ReallocRows(r + m_CellInfo[r][c].rowspan);
            if (c + m_CellInfo[r][c].colspan > m_NumCols)
                ReallocCols(c + m_CellInfo[r][c].colspan);
            for (i = r; i < r + m_CellInfo[r][c].rowspan; i++)
                for (j = c; j < c + m_CellInfo[r][c].colspan; j++)
                    m_CellInfo[i][j].flag = cellSpan;
            m_CellInfo[r][c].flag = cellUsed;
        }
    }

    //background color:
    {
        wxColour bk = m_rBkg;
        if (tag.HasParam(wxT("BGCOLOR")))
            tag.GetParamAsColour(wxT("BGCOLOR"), &bk);
        if (bk.Ok())
            cell->SetBackgroundColour(bk);
    }
    if (m_HasBorders)
        cell->SetBorder(TABLE_BORDER_CLR_2, TABLE_BORDER_CLR_1);

    // vertical alignment:
    {
        wxString valign;
        if (tag.HasParam(wxT("VALIGN")))
            valign = tag.GetParam(wxT("VALIGN"));
        else
            valign = m_tValign;
        valign.MakeUpper();
        if (valign == wxT("TOP"))
            m_CellInfo[r][c].valign = wxHTML_ALIGN_TOP;
        else if (valign == wxT("BOTTOM"))
            m_CellInfo[r][c].valign = wxHTML_ALIGN_BOTTOM;
        else m_CellInfo[r][c].valign = wxHTML_ALIGN_CENTER;
    }

    cell->SetIndent(m_Padding, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
}


void wxHtmlTableCell::Layout(int w)
{
    /*

    WIDTH ADJUSTING :

    */

    if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT)
    {
        if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100;
        else m_Width = m_WidthFloat * w / 100;
    }
    else
    {
        if (m_WidthFloat < 0) m_Width = w + m_WidthFloat;
        else m_Width = m_WidthFloat;
    }


    /*

    LAYOUTING :

    */

    /* 1.  setup columns widths: */
    {
        int wpix = m_Width - (m_NumCols + 1) * m_Spacing;
        int i, j;
        int wtemp = 0;

        // 1a. setup fixed-width columns:
        for (i = 0; i < m_NumCols; i++)
            if (m_ColsInfo[i].units == wxHTML_UNITS_PIXELS)
                wpix -= (m_ColsInfo[i].pixwidth = m_ColsInfo[i].width);

        // 1b. setup floating-width columns:
        for (i = 0; i < m_NumCols; i++)
            if ((m_ColsInfo[i].units == wxHTML_UNITS_PERCENT) && (m_ColsInfo[i].width != 0))
                wtemp += (m_ColsInfo[i].pixwidth = m_ColsInfo[i].width * wpix / 100);
        wpix -= wtemp;

        // 1c. setup defalut columns (no width specification supplied):
        // NOTE! This algorithm doesn't conform to HTML standard : it assigns equal widths
        // instead of optimal
        for (i = j = 0; i < m_NumCols; i++)
            if (m_ColsInfo[i].width == 0) j++;
        for (i = 0; i < m_NumCols; i++)
            if (m_ColsInfo[i].width == 0)
                m_ColsInfo[i].pixwidth = wpix / j;
    }

    /* 2.  compute positions of columns: */
    {
        int wpos = m_Spacing;
        for (int i = 0; i < m_NumCols; i++)
        {
            m_ColsInfo[i].leftpos = wpos;
            wpos += m_ColsInfo[i].pixwidth + m_Spacing;
        }
    }

    /* 3.  sub-layout all cells: */
    {
        int *ypos = new int[m_NumRows + 1];

        int actcol, actrow;
        int fullwid;
        wxHtmlContainerCell *actcell;

        ypos[0] = m_Spacing;
        for (actrow = 1; actrow <= m_NumRows; actrow++) ypos[actrow] = -1;
        for (actrow = 0; actrow < m_NumRows; actrow++)
        {
            if (ypos[actrow] == -1) ypos[actrow] = ypos[actrow-1];
            // 3a. sub-layout and detect max height:

            for (actcol = 0; actcol < m_NumCols; actcol++) {
                if (m_CellInfo[actrow][actcol].flag != cellUsed) continue;
                actcell = m_CellInfo[actrow][actcol].cont;
                fullwid = 0;
                for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++)
                    fullwid += m_ColsInfo[i].pixwidth;
                fullwid += (m_CellInfo[actrow][actcol].colspan - 1) * m_Spacing;
                actcell->SetMinHeight(m_CellInfo[actrow][actcol].minheight, m_CellInfo[actrow][actcol].valign);
                actcell->Layout(fullwid);

                if (ypos[actrow] + actcell->GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing > ypos[actrow + m_CellInfo[actrow][actcol].rowspan])
                    ypos[actrow + m_CellInfo[actrow][actcol].rowspan] =
                            ypos[actrow] + actcell->GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing;
            }
        }

        for (actrow = 0; actrow < m_NumRows; actrow++)
        {
            // 3b. place cells in row & let'em all have same height:

            for (actcol = 0; actcol < m_NumCols; actcol++)
            {
                if (m_CellInfo[actrow][actcol].flag != cellUsed) continue;
                actcell = m_CellInfo[actrow][actcol].cont;
                actcell->SetMinHeight(
                                 ypos[actrow + m_CellInfo[actrow][actcol].rowspan] - ypos[actrow] -  m_Spacing,
                                 m_CellInfo[actrow][actcol].valign);
                fullwid = 0;
                for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++)
                    fullwid += m_ColsInfo[i].pixwidth;
                fullwid += (m_CellInfo[actrow][actcol].colspan - 1) * m_Spacing;
                actcell->Layout(fullwid);
                actcell->SetPos(m_ColsInfo[actcol].leftpos, ypos[actrow]);
            }
        }
        m_Height = ypos[m_NumRows];
        delete[] ypos;
    }
}


//-----------------------------------------------------------------------------
// The tables handler:
//-----------------------------------------------------------------------------


TAG_HANDLER_BEGIN(TABLE, "TABLE,TR,TD,TH")

    TAG_HANDLER_VARS
        wxHtmlTableCell* m_Table;
        wxString m_tAlign, m_rAlign;
        int m_OldAlign;

    TAG_HANDLER_CONSTR(TABLE)
    {
        m_Table = NULL;
        m_tAlign = m_rAlign = wxEmptyString;
        m_OldAlign = wxHTML_ALIGN_LEFT;
    }


    TAG_HANDLER_PROC(tag)
    {
        wxHtmlContainerCell *c;

        // new table started, backup upper-level table (if any) and create new:
        if (tag.GetName() == wxT("TABLE"))
        {
            wxHtmlTableCell *oldt = m_Table;
            wxHtmlContainerCell *oldcont;
            int m_OldAlign;

            oldcont = c = m_WParser->OpenContainer();

            c->SetWidthFloat(tag, m_WParser->GetPixelScale());
            m_Table = new wxHtmlTableCell(c, tag, m_WParser->GetPixelScale());
            m_OldAlign = m_WParser->GetAlign();
            m_tAlign = wxEmptyString;
            if (tag.HasParam(wxT("ALIGN")))
                m_tAlign = tag.GetParam(wxT("ALIGN"));

            ParseInner(tag);

            m_WParser->SetAlign(m_OldAlign);
            m_WParser->SetContainer(oldcont);
            m_WParser->CloseContainer();
            m_Table = oldt;
            return TRUE;
        }


        else if (m_Table && !tag.IsEnding())
        {
            // new row in table
            if (tag.GetName() == wxT("TR"))
            {
                m_Table->AddRow(tag);
                m_rAlign = m_tAlign;
                if (tag.HasParam(wxT("ALIGN")))
                    m_rAlign = tag.GetParam(wxT("ALIGN"));
            }

            // new cell
            else
            {
                m_WParser->SetAlign(m_OldAlign);
                c = m_WParser->SetContainer(new wxHtmlContainerCell(m_Table));
                m_Table->AddCell(c, tag);

                m_WParser->OpenContainer();

                if (tag.GetName() == wxT("TH")) /*header style*/
                {
                    m_WParser->SetAlign(wxHTML_ALIGN_CENTER);
                }

                {
                    wxString als;

                    als = m_rAlign;
                    if (tag.HasParam(wxT("ALIGN")))
                        als = tag.GetParam(wxT("ALIGN"));
                    als.MakeUpper();
                    if (als == wxT("RIGHT"))
                        m_WParser->SetAlign(wxHTML_ALIGN_RIGHT);
                    else if (als == wxT("CENTER"))
                        m_WParser->SetAlign(wxHTML_ALIGN_CENTER);
                }
                m_WParser->OpenContainer();
            }
        }
        return FALSE;
    }

TAG_HANDLER_END(TABLE)


TAGS_MODULE_BEGIN(Tables)

    TAGS_MODULE_ADD(TABLE)

TAGS_MODULE_END(Tables)


#endif
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: m_tables.cpp
	3	// Purpose: wxHtml module for tables
	4	// Author: Vaclav Slavik
	5	// RCS-ID: $Id$
	6	// Copyright: (c) 1999 Vaclav Slavik
	7	// Licence: wxWindows Licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10	#ifdef __GNUG__
	11	#pragma implementation
	12	#endif
	13
	14	#include "wx/wxprec.h"
	15
	16	#include "wx/defs.h"
	17	#if wxUSE_HTML && wxUSE_STREAMS
	18	#ifdef __BORDLANDC__
	19	#pragma hdrstop
	20	#endif
	21
	22	#ifndef WXPRECOMP
	23	#endif
	24
	25
	26	/*
	27	REMARKS:
	28	1. This version of m_tables doesn't support auto-layout algorithm.
	29	This means that all columns are of same width unless explicitly specified.
	30	*/
	31
	32
	33	#include "wx/html/forcelnk.h"
	34	#include "wx/html/m_templ.h"
	35
	36	#include "wx/html/htmlcell.h"
	37
	38	FORCE_LINK_ME(m_tables)
	39
	40
	41	#define TABLE_BORDER_CLR_1 wxColour(0xC5, 0xC2, 0xC5)
	42	#define TABLE_BORDER_CLR_2 wxColour(0x62, 0x61, 0x62)
	43
	44
	45	//-----------------------------------------------------------------------------
	46	// wxHtmlTableCell
	47	//-----------------------------------------------------------------------------
	48
	49
	50	typedef struct {
	51	int width, units;
	52	// universal
	53	int leftpos, pixwidth, maxrealwidth;
	54	// temporary (depends on width of table)
	55	} colStruct;
	56
	57	typedef enum {
	58	cellSpan,
	59	cellUsed,
	60	cellFree
	61	} cellState;
	62
	63	typedef struct {
	64	wxHtmlContainerCell *cont;
	65	int colspan, rowspan;
	66	int minheight, valign;
	67	cellState flag;
	68	} cellStruct;
	69
	70
	71	class wxHtmlTableCell : public wxHtmlContainerCell
	72	{
	73	protected:
	74	/* These are real attributes: */
	75	bool m_HasBorders;
	76	// should we draw borders or not?
	77	int m_NumCols, m_NumRows;
	78	// number of columns; rows
	79	colStruct *m_ColsInfo;
	80	// array of column information
	81	cellStruct **m_CellInfo;
	82	// 2D array of all cells in the table : m_CellInfo[row][column]
	83	int m_Spacing;
	84	// spaces between cells
	85	int m_Padding;
	86	// cells internal indentation
	87
	88	private:
	89	/* ...and these are valid only during parsing of table: */
	90	int m_ActualCol, m_ActualRow;
	91	// number of actual column (ranging from 0..m_NumCols)
	92
	93	// default values (for table and row):
	94	wxColour m_tBkg, m_rBkg;
	95	wxString m_tValign, m_rValign;
	96
	97	double m_PixelScale;
	98
	99
	100	public:
	101	wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag, double pixel_scale = 1.0);
	102	~wxHtmlTableCell();
	103	virtual void Layout(int w);
	104
	105	void AddRow(const wxHtmlTag& tag);
	106	void AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag);
	107	private:
	108	void ReallocCols(int cols);
	109	void ReallocRows(int rows);
	110	// reallocates memory to given number of cols/rows
	111	// and changes m_NumCols/m_NumRows value to reflect this change
	112	// NOTE! You CAN'T change m_NumCols/m_NumRows before calling this!!
	113	};
	114
	115
	116
	117	wxHtmlTableCell::wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag, double pixel_scale)
	118	: wxHtmlContainerCell(parent)
	119	{
	120	m_PixelScale = pixel_scale;
	121	m_HasBorders =
	122	(tag.HasParam(wxT("BORDER")) && tag.GetParam(wxT("BORDER")) != wxT("0"));
	123	m_ColsInfo = NULL;
	124	m_NumCols = m_NumRows = 0;
	125	m_CellInfo = NULL;
	126	m_ActualCol = m_ActualRow = -1;
	127
	128	/* scan params: */
	129	if (tag.HasParam(wxT("BGCOLOR")))
	130	tag.GetParamAsColour(wxT("BGCOLOR"), &m_tBkg);
	131	if (tag.HasParam(wxT("VALIGN")))
	132	m_tValign = tag.GetParam(wxT("VALIGN"));
	133	else
	134	m_tValign = wxEmptyString;
	135	if (!tag.GetParamAsInt(wxT("CELLSPACING"), &m_Spacing))
	136	m_Spacing = 2;
	137	if (!tag.GetParamAsInt(wxT("CELLPADDING"), &m_Padding))
	138	m_Padding = 3;
	139	m_Spacing = (int)(m_PixelScale * (double)m_Spacing);
	140	m_Padding = (int)(m_PixelScale * (double)m_Padding);
	141
	142	if (m_HasBorders)
	143	SetBorder(TABLE_BORDER_CLR_1, TABLE_BORDER_CLR_2);
	144	}
	145
	146
	147
	148	wxHtmlTableCell::~wxHtmlTableCell()
	149	{
	150	if (m_ColsInfo) free(m_ColsInfo);
	151	if (m_CellInfo)
	152	{
	153	for (int i = 0; i < m_NumRows; i++)
	154	free(m_CellInfo[i]);
	155	free(m_CellInfo);
	156	}
	157	}
	158
	159
	160
	161	void wxHtmlTableCell::ReallocCols(int cols)
	162	{
	163	int i,j;
	164
	165	for (i = 0; i < m_NumRows; i++)
	166	{
	167	m_CellInfo[i] = (cellStruct) realloc(m_CellInfo[i], sizeof(cellStruct) cols);
	168	for (j = m_NumCols; j < cols; j++)
	169	m_CellInfo[i][j].flag = cellFree;
	170	}
	171
	172	m_ColsInfo = (colStruct) realloc(m_ColsInfo, sizeof(colStruct) cols);
	173	for (j = m_NumCols; j < cols; j++)
	174	{
	175	m_ColsInfo[j].width = 0;
	176	m_ColsInfo[j].units = wxHTML_UNITS_PERCENT;
	177	}
	178
	179	m_NumCols = cols;
	180	}
	181
	182
	183
	184	void wxHtmlTableCell::ReallocRows(int rows)
	185	{
	186	m_CellInfo = (cellStruct*) realloc(m_CellInfo, sizeof(cellStruct) * rows);
	187	for (int row = m_NumRows; row < rows ; row++)
	188	{
	189	if (m_NumCols == 0)
	190	m_CellInfo[row] = NULL;
	191	else
	192	{
	193	m_CellInfo[row] = (cellStruct) malloc(sizeof(cellStruct) m_NumCols);
	194	for (int col = 0; col < m_NumCols; col++)
	195	m_CellInfo[row][col].flag = cellFree;
	196	}
	197	}
	198	m_NumRows = rows;
	199	}
	200
	201
	202	void wxHtmlTableCell::AddRow(const wxHtmlTag& tag)
	203	{
	204	m_ActualCol = -1;
	205	// VS: real allocation of row entry is done in AddCell in order
	206	// to correctly handle empty rows (i.e. "<tr></tr>")
	207	// m_ActualCol == -1 indicates that AddCell has to allocate new row.
	208
	209	// scan params:
	210	m_rBkg = m_tBkg;
	211	if (tag.HasParam(wxT("BGCOLOR")))
	212	tag.GetParamAsColour(wxT("BGCOLOR"), &m_rBkg);
	213	if (tag.HasParam(wxT("VALIGN")))
	214	m_rValign = tag.GetParam(wxT("VALIGN"));
	215	else
	216	m_rValign = m_tValign;
	217	}
	218
	219
	220
	221	void wxHtmlTableCell::AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag)
	222	{
	223	// Is this cell in new row?
	224	// VS: we can't do it in AddRow, see my comment there
	225	if (m_ActualCol == -1)
	226	{
	227	if (m_ActualRow + 1 > m_NumRows - 1)
	228	ReallocRows(m_ActualRow + 2);
	229	m_ActualRow++;
	230	}
	231
	232	// cells & columns:
	233	do
	234	{
	235	m_ActualCol++;
	236	} while ((m_ActualCol < m_NumCols) &&
	237	(m_CellInfo[m_ActualRow][m_ActualCol].flag != cellFree));
	238
	239	if (m_ActualCol > m_NumCols - 1)
	240	ReallocCols(m_ActualCol + 1);
	241
	242	int r = m_ActualRow, c = m_ActualCol;
	243
	244	m_CellInfo[r][c].cont = cell;
	245	m_CellInfo[r][c].colspan = 1;
	246	m_CellInfo[r][c].rowspan = 1;
	247	m_CellInfo[r][c].flag = cellUsed;
	248	m_CellInfo[r][c].minheight = 0;
	249	m_CellInfo[r][c].valign = wxHTML_ALIGN_TOP;
	250
	251	/* scan for parameters: */
	252
	253	// width:
	254	{
	255	if (tag.HasParam(wxT("WIDTH")))
	256	{
	257	wxString wd = tag.GetParam(wxT("WIDTH"));
	258
	259	if (wd[wd.Length()-1] == wxT('%'))
	260	{
	261	wxSscanf(wd.c_str(), wxT("%i%%"), &m_ColsInfo[c].width);
	262	m_ColsInfo[c].units = wxHTML_UNITS_PERCENT;
	263	}
	264	else
	265	{
	266	wxSscanf(wd.c_str(), wxT("%i"), &m_ColsInfo[c].width);
	267	m_ColsInfo[c].width = (int)(m_PixelScale * (double)m_ColsInfo[c].width);
	268	m_ColsInfo[c].units = wxHTML_UNITS_PIXELS;
	269	}
	270	}
	271	}
	272
	273
	274	// spanning:
	275	{
	276	tag.GetParamAsInt(wxT("COLSPAN"), &m_CellInfo[r][c].colspan);
	277	tag.GetParamAsInt(wxT("ROWSPAN"), &m_CellInfo[r][c].rowspan);
	278	if ((m_CellInfo[r][c].colspan != 1) \|\| (m_CellInfo[r][c].rowspan != 1))
	279	{
	280	int i, j;
	281
	282	if (r + m_CellInfo[r][c].rowspan > m_NumRows)
	283	ReallocRows(r + m_CellInfo[r][c].rowspan);
	284	if (c + m_CellInfo[r][c].colspan > m_NumCols)
	285	ReallocCols(c + m_CellInfo[r][c].colspan);
	286	for (i = r; i < r + m_CellInfo[r][c].rowspan; i++)
	287	for (j = c; j < c + m_CellInfo[r][c].colspan; j++)
	288	m_CellInfo[i][j].flag = cellSpan;
	289	m_CellInfo[r][c].flag = cellUsed;
	290	}
	291	}
	292
	293	//background color:
	294	{
	295	wxColour bk = m_rBkg;
	296	if (tag.HasParam(wxT("BGCOLOR")))
	297	tag.GetParamAsColour(wxT("BGCOLOR"), &bk);
	298	if (bk.Ok())
	299	cell->SetBackgroundColour(bk);
	300	}
	301	if (m_HasBorders)
	302	cell->SetBorder(TABLE_BORDER_CLR_2, TABLE_BORDER_CLR_1);
	303
	304	// vertical alignment:
	305	{
	306	wxString valign;
	307	if (tag.HasParam(wxT("VALIGN")))
	308	valign = tag.GetParam(wxT("VALIGN"));
	309	else
	310	valign = m_tValign;
	311	valign.MakeUpper();
	312	if (valign == wxT("TOP"))
	313	m_CellInfo[r][c].valign = wxHTML_ALIGN_TOP;
	314	else if (valign == wxT("BOTTOM"))
	315	m_CellInfo[r][c].valign = wxHTML_ALIGN_BOTTOM;
	316	else m_CellInfo[r][c].valign = wxHTML_ALIGN_CENTER;
	317	}
	318
	319	cell->SetIndent(m_Padding, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
	320	}
	321
	322
	323
	324
	325
	326	void wxHtmlTableCell::Layout(int w)
	327	{
	328	/*
	329
	330	WIDTH ADJUSTING :
	331
	332	*/
	333
	334	if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT)
	335	{
	336	if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100;
	337	else m_Width = m_WidthFloat * w / 100;
	338	}
	339	else
	340	{
	341	if (m_WidthFloat < 0) m_Width = w + m_WidthFloat;
	342	else m_Width = m_WidthFloat;
	343	}
	344
	345
	346	/*
	347
	348	LAYOUTING :
	349
	350	*/
	351
	352	/* 1. setup columns widths: */
	353	{
	354	int wpix = m_Width - (m_NumCols + 1) * m_Spacing;
	355	int i, j;
	356	int wtemp = 0;
	357
	358	// 1a. setup fixed-width columns:
	359	for (i = 0; i < m_NumCols; i++)
	360	if (m_ColsInfo[i].units == wxHTML_UNITS_PIXELS)
	361	wpix -= (m_ColsInfo[i].pixwidth = m_ColsInfo[i].width);
	362
	363	// 1b. setup floating-width columns:
	364	for (i = 0; i < m_NumCols; i++)
	365	if ((m_ColsInfo[i].units == wxHTML_UNITS_PERCENT) && (m_ColsInfo[i].width != 0))
	366	wtemp += (m_ColsInfo[i].pixwidth = m_ColsInfo[i].width * wpix / 100);
	367	wpix -= wtemp;
	368
	369	// 1c. setup defalut columns (no width specification supplied):
	370	// NOTE! This algorithm doesn't conform to HTML standard : it assigns equal widths
	371	// instead of optimal
	372	for (i = j = 0; i < m_NumCols; i++)
	373	if (m_ColsInfo[i].width == 0) j++;
	374	for (i = 0; i < m_NumCols; i++)
	375	if (m_ColsInfo[i].width == 0)
	376	m_ColsInfo[i].pixwidth = wpix / j;
	377	}
	378
	379	/* 2. compute positions of columns: */
	380	{
	381	int wpos = m_Spacing;
	382	for (int i = 0; i < m_NumCols; i++)
	383	{
	384	m_ColsInfo[i].leftpos = wpos;
	385	wpos += m_ColsInfo[i].pixwidth + m_Spacing;
	386	}
	387	}
	388
	389	/* 3. sub-layout all cells: */
	390	{
	391	int *ypos = new int[m_NumRows + 1];
	392
	393	int actcol, actrow;
	394	int fullwid;
	395	wxHtmlContainerCell *actcell;
	396
	397	ypos[0] = m_Spacing;
	398	for (actrow = 1; actrow <= m_NumRows; actrow++) ypos[actrow] = -1;
	399	for (actrow = 0; actrow < m_NumRows; actrow++)
	400	{
	401	if (ypos[actrow] == -1) ypos[actrow] = ypos[actrow-1];
	402	// 3a. sub-layout and detect max height:
	403
	404	for (actcol = 0; actcol < m_NumCols; actcol++) {
	405	if (m_CellInfo[actrow][actcol].flag != cellUsed) continue;
	406	actcell = m_CellInfo[actrow][actcol].cont;
	407	fullwid = 0;
	408	for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++)
	409	fullwid += m_ColsInfo[i].pixwidth;
	410	fullwid += (m_CellInfo[actrow][actcol].colspan - 1) * m_Spacing;
	411	actcell->SetMinHeight(m_CellInfo[actrow][actcol].minheight, m_CellInfo[actrow][actcol].valign);
	412	actcell->Layout(fullwid);
	413
	414	if (ypos[actrow] + actcell->GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing > ypos[actrow + m_CellInfo[actrow][actcol].rowspan])
	415	ypos[actrow + m_CellInfo[actrow][actcol].rowspan] =
	416	ypos[actrow] + actcell->GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing;
	417	}
	418	}
	419
	420	for (actrow = 0; actrow < m_NumRows; actrow++)
	421	{
	422	// 3b. place cells in row & let'em all have same height:
	423
	424	for (actcol = 0; actcol < m_NumCols; actcol++)
	425	{
	426	if (m_CellInfo[actrow][actcol].flag != cellUsed) continue;
	427	actcell = m_CellInfo[actrow][actcol].cont;
	428	actcell->SetMinHeight(
	429	ypos[actrow + m_CellInfo[actrow][actcol].rowspan] - ypos[actrow] - m_Spacing,
	430	m_CellInfo[actrow][actcol].valign);
	431	fullwid = 0;
	432	for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++)
	433	fullwid += m_ColsInfo[i].pixwidth;
	434	fullwid += (m_CellInfo[actrow][actcol].colspan - 1) * m_Spacing;
	435	actcell->Layout(fullwid);
	436	actcell->SetPos(m_ColsInfo[actcol].leftpos, ypos[actrow]);
	437	}
	438	}
	439	m_Height = ypos[m_NumRows];
	440	delete[] ypos;
	441	}
	442	}
	443
	444
	445
	446
	447
	448
	449	//-----------------------------------------------------------------------------
	450	// The tables handler:
	451	//-----------------------------------------------------------------------------
	452
	453
	454	TAG_HANDLER_BEGIN(TABLE, "TABLE,TR,TD,TH")
	455
	456	TAG_HANDLER_VARS
	457	wxHtmlTableCell* m_Table;
	458	wxString m_tAlign, m_rAlign;
	459	int m_OldAlign;
	460
	461	TAG_HANDLER_CONSTR(TABLE)
	462	{
	463	m_Table = NULL;
	464	m_tAlign = m_rAlign = wxEmptyString;
	465	m_OldAlign = wxHTML_ALIGN_LEFT;
	466	}
	467
	468
	469	TAG_HANDLER_PROC(tag)
	470	{
	471	wxHtmlContainerCell *c;
	472
	473	// new table started, backup upper-level table (if any) and create new:
	474	if (tag.GetName() == wxT("TABLE"))
	475	{
	476	wxHtmlTableCell *oldt = m_Table;
	477	wxHtmlContainerCell *oldcont;
	478	int m_OldAlign;
	479
	480	oldcont = c = m_WParser->OpenContainer();
	481
	482	c->SetWidthFloat(tag, m_WParser->GetPixelScale());
	483	m_Table = new wxHtmlTableCell(c, tag, m_WParser->GetPixelScale());
	484	m_OldAlign = m_WParser->GetAlign();
	485	m_tAlign = wxEmptyString;
	486	if (tag.HasParam(wxT("ALIGN")))
	487	m_tAlign = tag.GetParam(wxT("ALIGN"));
	488
	489	ParseInner(tag);
	490
	491	m_WParser->SetAlign(m_OldAlign);
	492	m_WParser->SetContainer(oldcont);
	493	m_WParser->CloseContainer();
	494	m_Table = oldt;
	495	return TRUE;
	496	}
	497
	498
	499	else if (m_Table && !tag.IsEnding())
	500	{
	501	// new row in table
	502	if (tag.GetName() == wxT("TR"))
	503	{
	504	m_Table->AddRow(tag);
	505	m_rAlign = m_tAlign;
	506	if (tag.HasParam(wxT("ALIGN")))
	507	m_rAlign = tag.GetParam(wxT("ALIGN"));
	508	}
	509
	510	// new cell
	511	else
	512	{
	513	m_WParser->SetAlign(m_OldAlign);
	514	c = m_WParser->SetContainer(new wxHtmlContainerCell(m_Table));
	515	m_Table->AddCell(c, tag);
	516
	517	m_WParser->OpenContainer();
	518
	519	if (tag.GetName() == wxT("TH")) /header style/
	520	{
	521	m_WParser->SetAlign(wxHTML_ALIGN_CENTER);
	522	}
	523
	524	{
	525	wxString als;
	526
	527	als = m_rAlign;
	528	if (tag.HasParam(wxT("ALIGN")))
	529	als = tag.GetParam(wxT("ALIGN"));
	530	als.MakeUpper();
	531	if (als == wxT("RIGHT"))
	532	m_WParser->SetAlign(wxHTML_ALIGN_RIGHT);
	533	else if (als == wxT("CENTER"))
	534	m_WParser->SetAlign(wxHTML_ALIGN_CENTER);
	535	}
	536	m_WParser->OpenContainer();
	537	}
	538	}
	539	return FALSE;
	540	}
	541
	542	TAG_HANDLER_END(TABLE)
	543
	544
	545
	546
	547
	548	TAGS_MODULE_BEGIN(Tables)
	549
	550	TAGS_MODULE_ADD(TABLE)
	551
	552	TAGS_MODULE_END(Tables)
	553
	554
	555	#endif