/////////////////////////////////////////////////////////////////////////////
-// Name: m_tables.cpp
+// Name: src/html/m_tables.cpp
// Purpose: wxHtml module for tables
// Author: Vaclav Slavik
-// RCS-ID: $Id$
// Copyright: (c) 1999 Vaclav Slavik
-// Licence: wxWindows Licence
+// 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
-#include "wx/wx.h"
+#ifdef __BORLANDC__
+ #pragma hdrstop
#endif
+#if wxUSE_HTML && wxUSE_STREAMS
-/*
-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.
-*/
-
+#ifndef WX_PRECOMP
+ #include "wx/wxcrtvararg.h"
+ #include "wx/brush.h"
+#endif
#include "wx/html/forcelnk.h"
#include "wx/html/m_templ.h"
//-----------------------------------------------------------------------------
-typedef struct {
- int width, units; // universal
- int leftpos, pixwidth, maxrealwidth; // temporary (depends on width of table)
- } colStruct;
+struct colStruct
+{
+ int width, units;
+ // width of the column either in pixels or percents
+ // ('width' is the number, 'units' determines its meaning)
+ int minWidth, maxWidth;
+ // minimal/maximal column width. This is needed by HTML 4.0
+ // layout algorithm and can be determined by trying to
+ // layout table cells with width=1 and width=infinity
+ int leftpos, pixwidth, maxrealwidth;
+ // temporary (depends on actual width of table)
+};
-typedef enum {
- cellSpan,
- cellUsed,
- cellFree
- } cellState;
+enum cellState
+{
+ cellSpan,
+ cellUsed,
+ cellFree
+};
-typedef struct {
- wxHtmlContainerCell *cont;
- int colspan, rowspan;
- int minheight, valign;
- cellState flag;
- } cellStruct;
+struct cellStruct
+{
+ wxHtmlContainerCell *cont;
+ int colspan, rowspan;
+ int minheight, valign;
+ cellState flag;
+ bool nowrap;
+};
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):
- int 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!!
+protected:
+ /* These are real attributes: */
+
+ // number of columns; rows
+ int m_NumCols, m_NumRows;
+ // array of column information
+ colStruct *m_ColsInfo;
+ // 2D array of all cells in the table : m_CellInfo[row][column]
+ cellStruct **m_CellInfo;
+ // spaces between cells
+ int m_Spacing;
+ // cells internal indentation
+ int m_Padding;
+
+private:
+ /* ...and these are valid only when parsing the table: */
+
+ // number of actual column (ranging from 0..m_NumCols)
+ int m_ActualCol, m_ActualRow;
+
+ // 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);
+ virtual ~wxHtmlTableCell();
+
+ virtual void RemoveExtraSpacing(bool top, bool bottom);
+
+ virtual void Layout(int w);
+
+ void AddRow(const wxHtmlTag& tag);
+ void AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag);
+
+ const wxColour& GetRowDefaultBackgroundColour() const { return m_rBkg; }
+
+private:
+ // 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!!
+ void ReallocCols(int cols);
+ void ReallocRows(int rows);
+
+ // Computes minimal and maximal widths of columns. Needs to be called
+ // only once, before first Layout().
+ void ComputeMinMaxWidths();
+
+ wxDECLARE_NO_COPY_CLASS(wxHtmlTableCell);
};
: 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: */
- m_tBkg = m_rBkg = -1;
- if (tag.HasParam(wxT("BGCOLOR"))) tag.ScanParam(wxT("BGCOLOR"), wxT("#%lX"), &m_tBkg);
- if (tag.HasParam(wxT("VALIGN"))) m_tValign = tag.GetParam(wxT("VALIGN")); else m_tValign = wxEmptyString;
- if (tag.HasParam(wxT("CELLSPACING")) && tag.ScanParam(wxT("CELLSPACING"), wxT("%i"), &m_Spacing) == 1) {} else m_Spacing = 2;
- if (tag.HasParam(wxT("CELLPADDING")) && tag.ScanParam(wxT("CELLPADDING"), wxT("%i"), &m_Padding) == 1) {} else m_Padding = 3;
+ if (tag.HasParam(wxT("BGCOLOR")))
+ {
+ tag.GetParamAsColour(wxT("BGCOLOR"), &m_tBkg);
+ if (m_tBkg.IsOk())
+ SetBackgroundColour(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);
+ if(tag.HasParam(wxT("BORDER")))
+ {
+ if(tag.GetParam("BORDER").IsEmpty())
+ m_Border = 1;
+ else
+ tag.GetParamAsInt(wxT("BORDER"), &m_Border);
+ }
+ if (m_Border == 1)
+ SetBorder(TABLE_BORDER_CLR_1, TABLE_BORDER_CLR_2, m_Border); // special case see wxHtmlContainerCell::Draw
+ else if (m_Border> 0)
+ SetBorder(TABLE_BORDER_CLR_1, TABLE_BORDER_CLR_2, (int)(m_PixelScale * (double)m_Border));
+ else
+ m_Border = 0;
+
}
wxHtmlTableCell::~wxHtmlTableCell()
{
if (m_ColsInfo) free(m_ColsInfo);
- if (m_CellInfo)
+ if (m_CellInfo)
{
for (int i = 0; i < m_NumRows; i++)
free(m_CellInfo[i]);
}
+void wxHtmlTableCell::RemoveExtraSpacing(bool WXUNUSED(top),
+ bool WXUNUSED(bottom))
+{
+ // Don't remove any spacing in the table -- it's always desirable,
+ // because it's part of table's definition.
+ // (If wxHtmlContainerCell::RemoveExtraSpacing() was applied to tables,
+ // then upper left cell of a table would be positioned above other cells
+ // if the table was the first element on the page.)
+}
void wxHtmlTableCell::ReallocCols(int cols)
{
int i,j;
- for (i = 0; i < m_NumRows; i++)
+ 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_ColsInfo = (colStruct*) realloc(m_ColsInfo, sizeof(colStruct) * cols);
- for (j = m_NumCols; j < cols; j++)
+ for (j = m_NumCols; j < cols; j++)
{
m_ColsInfo[j].width = 0;
m_ColsInfo[j].units = wxHTML_UNITS_PERCENT;
+ m_ColsInfo[j].minWidth = m_ColsInfo[j].maxWidth = -1;
}
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++)
+ for (int row = m_NumRows; row < rows ; row++)
{
- if (m_NumCols == 0)
+ if (m_NumCols == 0)
m_CellInfo[row] = NULL;
- else
+ else
{
m_CellInfo[row] = (cellStruct*) malloc(sizeof(cellStruct) * m_NumCols);
for (int col = 0; col < m_NumCols; col++)
void wxHtmlTableCell::AddRow(const wxHtmlTag& tag)
{
- if (m_ActualRow + 1 > m_NumRows - 1)
- ReallocRows(m_ActualRow + 2);
- m_ActualRow++;
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: */
+ // scan params:
m_rBkg = m_tBkg;
- if (tag.HasParam(wxT("BGCOLOR"))) tag.ScanParam(wxT("BGCOLOR"), wxT("#%lX"), &m_rBkg);
- if (tag.HasParam(wxT("VALIGN"))) m_rValign = tag.GetParam(wxT("VALIGN")); else m_rValign = m_tValign;
+ 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)
{
- do
+ // 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));
-
+ } while ((m_ActualCol < m_NumCols) &&
+ (m_CellInfo[m_ActualRow][m_ActualCol].flag != cellFree));
+
if (m_ActualCol > m_NumCols - 1)
ReallocCols(m_ActualCol + 1);
// width:
{
- if (tag.HasParam("WIDTH"))
+ if (tag.HasParam(wxT("WIDTH")))
{
- wxString wd = tag.GetParam("WIDTH");
+ wxString wd = tag.GetParam(wxT("WIDTH"));
- if (wd[wd.Length()-1] == '%')
+ if (!wd.empty() && wd[wd.length()-1] == wxT('%'))
{
- wxSscanf(wd.c_str(), wxT("%i%%"), &m_ColsInfo[c].width);
- m_ColsInfo[c].units = wxHTML_UNITS_PERCENT;
+ if ( wxSscanf(wd.c_str(), wxT("%i%%"), &m_ColsInfo[c].width) == 1 )
+ {
+ m_ColsInfo[c].units = wxHTML_UNITS_PERCENT;
+ }
}
- else
+ 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;
+ long width;
+ if ( wd.ToLong(&width) )
+ {
+ m_ColsInfo[c].width = (int)(m_PixelScale * (double)width);
+ m_ColsInfo[c].units = wxHTML_UNITS_PIXELS;
+ }
}
}
}
// spanning:
{
- if (tag.HasParam(wxT("COLSPAN"))) tag.ScanParam(wxT("COLSPAN"), wxT("%i"), &m_CellInfo[r][c].colspan);
- if (tag.HasParam(wxT("ROWSPAN"))) tag.ScanParam(wxT("ROWSPAN"), wxT("%i"), &m_CellInfo[r][c].rowspan);
- if ((m_CellInfo[r][c].colspan != 1) || (m_CellInfo[r][c].rowspan != 1))
+ tag.GetParamAsInt(wxT("COLSPAN"), &m_CellInfo[r][c].colspan);
+ tag.GetParamAsInt(wxT("ROWSPAN"), &m_CellInfo[r][c].rowspan);
+
+ // VS: the standard says this about col/rowspan:
+ // "This attribute specifies the number of rows spanned by the
+ // current cell. The default value of this attribute is one ("1").
+ // The value zero ("0") means that the cell spans all rows from the
+ // current row to the last row of the table." All mainstream
+ // browsers act as if 0==1, though, and so does wxHTML.
+ if (m_CellInfo[r][c].colspan < 1)
+ m_CellInfo[r][c].colspan = 1;
+ if (m_CellInfo[r][c].rowspan < 1)
+ m_CellInfo[r][c].rowspan = 1;
+
+ 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);
+ 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;
//background color:
{
- int bk = m_rBkg;
- if (tag.HasParam(wxT("BGCOLOR"))) tag.ScanParam(wxT("BGCOLOR"), wxT("#%lX"), &bk);
- if (bk != -1)
- {
- wxColour clr = wxColour((bk & 0xFF0000) >> 16 , (bk & 0x00FF00) >> 8, (bk & 0x0000FF));
- cell->SetBackgroundColour(clr);
- }
+ wxColour bk = m_rBkg;
+ if (tag.HasParam(wxT("BGCOLOR")))
+ tag.GetParamAsColour(wxT("BGCOLOR"), &bk);
+ if (bk.IsOk())
+ cell->SetBackgroundColour(bk);
}
- if (m_HasBorders)
+ if (m_Border > 0)
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;
+ 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;
+ 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;
}
+ // nowrap
+ if (tag.HasParam(wxT("NOWRAP")))
+ m_CellInfo[r][c].nowrap = true;
+ else
+ m_CellInfo[r][c].nowrap = false;
+
cell->SetIndent(m_Padding, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
}
+void wxHtmlTableCell::ComputeMinMaxWidths()
+{
+ if (m_NumCols == 0 || m_ColsInfo[0].minWidth != wxDefaultCoord) return;
+ m_MaxTotalWidth = 0;
+ int percentage = 0;
+ for (int c = 0; c < m_NumCols; c++)
+ {
+ for (int r = 0; r < m_NumRows; r++)
+ {
+ cellStruct& cell = m_CellInfo[r][c];
+ if (cell.flag == cellUsed)
+ {
+ cell.cont->Layout(2*m_Padding + 1);
+ int maxWidth = cell.cont->GetMaxTotalWidth();
+ int width = cell.nowrap?maxWidth:cell.cont->GetWidth();
+ width -= (cell.colspan-1) * m_Spacing;
+ maxWidth -= (cell.colspan-1) * m_Spacing;
+ // HTML 4.0 says it is acceptable to distribute min/max
+ width /= cell.colspan;
+ maxWidth /= cell.colspan;
+ for (int j = 0; j < cell.colspan; j++) {
+ if (width > m_ColsInfo[c+j].minWidth)
+ m_ColsInfo[c+j].minWidth = width;
+ if (maxWidth > m_ColsInfo[c+j].maxWidth)
+ m_ColsInfo[c+j].maxWidth = maxWidth;
+ }
+ }
+ }
+ // Calculate maximum table width, required for nested tables
+ if (m_ColsInfo[c].units == wxHTML_UNITS_PIXELS)
+ m_MaxTotalWidth += wxMax(m_ColsInfo[c].width, m_ColsInfo[c].minWidth);
+ else if ((m_ColsInfo[c].units == wxHTML_UNITS_PERCENT) && (m_ColsInfo[c].width != 0))
+ percentage += m_ColsInfo[c].width;
+ else
+ m_MaxTotalWidth += m_ColsInfo[c].maxWidth;
+ }
+ if (percentage >= 100)
+ {
+ // Table would have infinite length
+ // Make it ridiculous large
+ m_MaxTotalWidth = 0xFFFFFF;
+ }
+ else
+ m_MaxTotalWidth = m_MaxTotalWidth * 100 / (100 - percentage);
+ m_MaxTotalWidth += (m_NumCols + 1) * m_Spacing + 2 * m_Border;
+}
void wxHtmlTableCell::Layout(int w)
{
+ ComputeMinMaxWidths();
+
+ wxHtmlCell::Layout(w);
+
/*
WIDTH ADJUSTING :
*/
- if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT)
+ if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT)
{
- if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100;
- else m_Width = m_WidthFloat * w / 100;
+ if (m_WidthFloat < 0)
+ {
+ if (m_WidthFloat < -100)
+ m_WidthFloat = -100;
+ m_Width = (100 + m_WidthFloat) * w / 100;
+ }
+ else
+ {
+ if (m_WidthFloat > 100)
+ m_WidthFloat = 100;
+ m_Width = m_WidthFloat * w / 100;
+ }
}
- else
+ else
{
if (m_WidthFloat < 0) m_Width = w + m_WidthFloat;
else m_Width = m_WidthFloat;
/*
- LAYOUTING :
+ LAYOUT :
*/
- /* 1. setup columns widths: */
+ /* 1. setup columns widths:
+
+ The algorithm tries to keep the table size less than w if possible.
+ */
{
- int wpix = m_Width - (m_NumCols + 1) * m_Spacing;
+ int wpix = m_Width - (m_NumCols + 1) * m_Spacing - 2 * m_Border; // Available space for cell content
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);
+ {
+ m_ColsInfo[i].pixwidth = wxMax(m_ColsInfo[i].width,
+ m_ColsInfo[i].minWidth);
+ wpix -= m_ColsInfo[i].pixwidth;
+ }
+
+ // 1b. Calculate maximum possible width if line wrapping would be disabled
+ // Recalculate total width if m_WidthFloat is zero to keep tables as small
+ // as possible.
+ int maxWidth = 0;
+ for (i = 0; i < m_NumCols; i++)
+ if (m_ColsInfo[i].width == 0)
+ {
+ maxWidth += m_ColsInfo[i].maxWidth;
+ }
+
+ if (!m_WidthFloat)
+ {
+ // Recalculate table width since no table width was initially given
+ int newWidth = m_Width - wpix + maxWidth;
+
+ // Make sure that floating-width columns will have the right size.
+ // Calculate sum of all floating-width columns
+ int percentage = 0;
+ for (i = 0; i < m_NumCols; i++)
+ if ((m_ColsInfo[i].units == wxHTML_UNITS_PERCENT) && (m_ColsInfo[i].width != 0))
+ percentage += m_ColsInfo[i].width;
+
+ if (percentage >= 100)
+ newWidth = w;
+ else
+ newWidth = newWidth * 100 / (100 - percentage);
+
+ newWidth = wxMin(newWidth, w - (m_NumCols + 1) * m_Spacing - 2 * m_Border);
+ wpix -= m_Width - newWidth;
+ m_Width = newWidth;
+ }
- // 1b. setup floating-width columns:
+
+ // 1c. setup floating-width columns:
+ int wtemp = wpix;
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;
+ {
+ m_ColsInfo[i].pixwidth = wxMin(m_ColsInfo[i].width, 100) * wpix / 100;
+
+ // Make sure to leave enough space for the other columns
+ int minRequired = m_Border;
+ for (j = 0; j < m_NumCols; j++)
+ {
+ if ((m_ColsInfo[j].units == wxHTML_UNITS_PERCENT && j > i) ||
+ !m_ColsInfo[j].width)
+ minRequired += m_ColsInfo[j].minWidth;
+ }
+ m_ColsInfo[i].pixwidth = wxMax(wxMin(wtemp - minRequired, m_ColsInfo[i].pixwidth), m_ColsInfo[i].minWidth);
+
+ wtemp -= m_ColsInfo[i].pixwidth;
+ }
+ wpix = wtemp; // minimum cells width
+
+ // 1d. setup default columns (no width specification supplied):
+ // The algorithm assigns calculates the maximum possible width if line
+ // wrapping would be disabled and assigns column width as a fraction
+ // based upon the maximum width of a column
+ // FIXME: I'm not sure if this algorithm is conform to HTML standard,
+ // though it seems to be much better than the old one
- // 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++;
+ if (wpix < m_Border)
+ wpix = m_Border;
+
+ // Assign widths
for (i = 0; i < m_NumCols; i++)
if (m_ColsInfo[i].width == 0)
- m_ColsInfo[i].pixwidth = wpix / j;
+ {
+ // Assign with, make sure not to drop below minWidth
+ if (maxWidth)
+ m_ColsInfo[i].pixwidth = (int)(wpix * (m_ColsInfo[i].maxWidth / (float)maxWidth) + 0.5);
+ else
+ m_ColsInfo[i].pixwidth = wpix / j;
+
+ // Make sure to leave enough space for the other columns
+ int minRequired = 0;
+ int r;
+ for (r = i + 1; r < m_NumCols; r++)
+ {
+ if (!m_ColsInfo[r].width)
+ minRequired += m_ColsInfo[r].minWidth;
+ }
+ m_ColsInfo[i].pixwidth = wxMax(wxMin(wpix - minRequired, m_ColsInfo[i].pixwidth), m_ColsInfo[i].minWidth);
+
+ if (maxWidth)
+ {
+ if (m_ColsInfo[i].pixwidth > (wpix * (m_ColsInfo[i].maxWidth / (float)maxWidth) + 0.5))
+ {
+ int diff = (int)(m_ColsInfo[i].pixwidth - (wpix * m_ColsInfo[i].maxWidth / (float)maxWidth + 0.5));
+ maxWidth += diff - m_ColsInfo[i].maxWidth;
+ }
+ else
+ maxWidth -= m_ColsInfo[i].maxWidth;
+ }
+ wpix -= m_ColsInfo[i].pixwidth;
+ }
}
/* 2. compute positions of columns: */
{
- int wpos = m_Spacing;
- for (int i = 0; i < m_NumCols; i++)
+ int wpos = m_Spacing + m_Border;
+ for (int i = 0; i < m_NumCols; i++)
{
m_ColsInfo[i].leftpos = wpos;
wpos += m_ColsInfo[i].pixwidth + m_Spacing;
}
+
+ // add the remaining space to the last column
+ if (m_NumCols > 0 && wpos < m_Width - m_Border)
+ m_ColsInfo[m_NumCols-1].pixwidth += m_Width - wpos - m_Border;
}
/* 3. sub-layout all cells: */
int fullwid;
wxHtmlContainerCell *actcell;
- ypos[0] = m_Spacing;
+ ypos[0] = m_Spacing + m_Border;
for (actrow = 1; actrow <= m_NumRows; actrow++) ypos[actrow] = -1;
- for (actrow = 0; actrow < m_NumRows; actrow++)
+ for (actrow = 0; actrow < m_NumRows; actrow++)
{
if (ypos[actrow] == -1) ypos[actrow] = ypos[actrow-1];
// 3a. sub-layout and detect max height:
}
}
- for (actrow = 0; actrow < m_NumRows; actrow++)
+ 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++)
+ for (actcol = 0; actcol < m_NumCols; actcol++)
{
if (m_CellInfo[actrow][actcol].flag != cellUsed) continue;
actcell = m_CellInfo[actrow][actcol].cont;
actcell->SetPos(m_ColsInfo[actcol].leftpos, ypos[actrow]);
}
}
- m_Height = ypos[m_NumRows];
+ m_Height = ypos[m_NumRows] + m_Border;
delete[] ypos;
}
+
+ /* 4. adjust table's width if it was too small: */
+ if (m_NumCols > 0)
+ {
+ int twidth = m_ColsInfo[m_NumCols-1].leftpos +
+ m_ColsInfo[m_NumCols-1].pixwidth + m_Spacing + m_Border;
+ if (twidth > m_Width)
+ m_Width = twidth;
+ }
}
TAG_HANDLER_VARS
wxHtmlTableCell* m_Table;
wxString m_tAlign, m_rAlign;
- int m_OldAlign;
+ wxHtmlContainerCell *m_enclosingContainer;
+
+ // Call ParseInner() preserving background colour and mode after any
+ // changes done by it.
+ void CallParseInnerWithBg(const wxHtmlTag& tag, const wxColour& colBg)
+ {
+ const wxColour oldbackclr = m_WParser->GetActualBackgroundColor();
+ const int oldbackmode = m_WParser->GetActualBackgroundMode();
+ if ( colBg.IsOk() )
+ {
+ m_WParser->SetActualBackgroundColor(colBg);
+ m_WParser->SetActualBackgroundMode(wxBRUSHSTYLE_SOLID);
+ m_WParser->GetContainer()->InsertCell(
+ new wxHtmlColourCell(colBg, wxHTML_CLR_BACKGROUND)
+ );
+ }
+
+ ParseInner(tag);
+
+ if ( oldbackmode != m_WParser->GetActualBackgroundMode() ||
+ oldbackclr != m_WParser->GetActualBackgroundColor() )
+ {
+ m_WParser->SetActualBackgroundMode(oldbackmode);
+ m_WParser->SetActualBackgroundColor(oldbackclr);
+ m_WParser->GetContainer()->InsertCell(
+ new wxHtmlColourCell(oldbackclr,
+ oldbackmode == wxBRUSHSTYLE_TRANSPARENT
+ ? wxHTML_CLR_TRANSPARENT_BACKGROUND
+ : wxHTML_CLR_BACKGROUND)
+ );
+ }
+ }
TAG_HANDLER_CONSTR(TABLE)
{
m_Table = NULL;
+ m_enclosingContainer = NULL;
m_tAlign = m_rAlign = wxEmptyString;
- m_OldAlign = wxHTML_ALIGN_LEFT;
}
wxHtmlContainerCell *c;
// new table started, backup upper-level table (if any) and create new:
- if (tag.GetName() == wxT("TABLE"))
+ if (tag.GetName() == wxT("TABLE"))
{
wxHtmlTableCell *oldt = m_Table;
- wxHtmlContainerCell *oldcont;
- int m_OldAlign;
- oldcont = c = m_WParser->OpenContainer();
+ wxHtmlContainerCell *oldEnclosing = m_enclosingContainer;
+ m_enclosingContainer = c = m_WParser->OpenContainer();
- c->SetWidthFloat(tag, m_WParser->GetPixelScale());
m_Table = new wxHtmlTableCell(c, tag, m_WParser->GetPixelScale());
- m_OldAlign = m_WParser->GetAlign();
+
+ // width:
+ {
+ if (tag.HasParam(wxT("WIDTH")))
+ {
+ int width = 0;
+ bool wpercent = false;
+ if (tag.GetParamAsIntOrPercent(wxT("WIDTH"), &width, wpercent))
+ {
+ if (wpercent)
+ {
+ m_Table->SetWidthFloat(width, wxHTML_UNITS_PERCENT);
+ }
+ else
+ {
+ m_Table->SetWidthFloat((int)(m_WParser->GetPixelScale() * width), wxHTML_UNITS_PIXELS);
+ }
+ }
+ }
+ else
+ m_Table->SetWidthFloat(0, wxHTML_UNITS_PIXELS);
+ }
+ int oldAlign = m_WParser->GetAlign();
m_tAlign = wxEmptyString;
- if (tag.HasParam(wxT("ALIGN"))) m_tAlign = tag.GetParam(wxT("ALIGN"));
+ if (tag.HasParam(wxT("ALIGN")))
+ m_tAlign = tag.GetParam(wxT("ALIGN"));
- ParseInner(tag);
+ CallParseInnerWithBg(tag, m_Table->GetBackgroundColour());
- m_WParser->SetAlign(m_OldAlign);
- m_WParser->SetContainer(oldcont);
+ m_WParser->SetAlign(oldAlign);
+ m_WParser->SetContainer(m_enclosingContainer);
m_WParser->CloseContainer();
+
m_Table = oldt;
- return TRUE;
+ m_enclosingContainer = oldEnclosing;
+
+ return true; // ParseInner() called
}
- else if (m_Table && !tag.IsEnding())
+ else if (m_Table)
{
// new row in table
- if (tag.GetName() == wxT("TR"))
+ if (tag.GetName() == wxT("TR"))
{
m_Table->AddRow(tag);
m_rAlign = m_tAlign;
- if (tag.HasParam(wxT("ALIGN"))) m_rAlign = tag.GetParam(wxT("ALIGN"));
+ if (tag.HasParam(wxT("ALIGN")))
+ m_rAlign = tag.GetParam(wxT("ALIGN"));
}
// new cell
- else
+ 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*/
- {
+ const bool isHeader = tag.GetName() == wxT("TH");
+
+ wxString als;
+ if (tag.HasParam(wxT("ALIGN")))
+ als = tag.GetParam(wxT("ALIGN"));
+ else
+ als = m_rAlign;
+ als.MakeUpper();
+
+ if (als == wxT("RIGHT"))
+ m_WParser->SetAlign(wxHTML_ALIGN_RIGHT);
+ else if (als == wxT("LEFT"))
+ m_WParser->SetAlign(wxHTML_ALIGN_LEFT);
+ else if (als == wxT("CENTER"))
m_WParser->SetAlign(wxHTML_ALIGN_CENTER);
- }
+ else // use default alignment
+ m_WParser->SetAlign(isHeader ? wxHTML_ALIGN_CENTER
+ : wxHTML_ALIGN_LEFT);
+
+ m_WParser->OpenContainer();
+ // the header should be rendered in bold by default
+ int boldOld = 0;
+ if ( isHeader )
{
- wxString als;
+ boldOld = m_WParser->GetFontBold();
+ m_WParser->SetFontBold(true);
+ m_WParser->GetContainer()->InsertCell(
+ new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
+ }
- 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);
+ wxColour bgCol;
+ if ( !tag.GetParamAsColour(wxT("BGCOLOR"), &bgCol) )
+ bgCol = m_Table->GetRowDefaultBackgroundColour();
+
+ CallParseInnerWithBg(tag, bgCol);
+
+ if ( isHeader )
+ {
+ m_WParser->SetFontBold(boldOld);
+ m_WParser->GetContainer()->InsertCell(
+ new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
}
- m_WParser->OpenContainer();
+
+ // set the current container back to the enclosing one so that
+ // text outside of <th> and <td> isn't included in any cell
+ // (this happens often enough in practice because it's common
+ // to use whitespace between </td> and the next <td>):
+ m_WParser->SetContainer(m_enclosingContainer);
+
+ return true; // ParseInner() called
}
}
- return FALSE;
+
+ return false;
}
TAG_HANDLER_END(TABLE)
projects / wxWidgets.git / blobdiff