src/html/m_tables.cpp

   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 #include "wx/wxprec.h"
  11
  12 #include "wx/defs.h"
  13 #if wxUSE_HTML && wxUSE_STREAMS
  14 #ifdef __BORLANDC__
  15 #pragma hdrstop
  16 #endif
  17
  18 #ifndef WXPRECOMP
  19 #endif
  20
  21 #include "wx/html/forcelnk.h"
  22 #include "wx/html/m_templ.h"
  23
  24 #include "wx/html/htmlcell.h"
  25
  26 FORCE_LINK_ME(m_tables)
  27
  28
  29 #define TABLE_BORDER_CLR_1  wxColour(0xC5, 0xC2, 0xC5)
  30 #define TABLE_BORDER_CLR_2  wxColour(0x62, 0x61, 0x62)
  31
  32
  33 //-----------------------------------------------------------------------------
  34 // wxHtmlTableCell
  35 //-----------------------------------------------------------------------------
  36
  37
  38 struct colStruct
  39 {
  40     int width, units;
  41             // width of the column either in pixels or percents
  42             // ('width' is the number, 'units' determines its meaning)
  43     int minWidth, maxWidth;
  44             // minimal/maximal column width. This is needed by HTML 4.0
  45             // layouting algorithm and can be determined by trying to
  46             // layout table cells with width=1 and width=infinity
  47     int leftpos, pixwidth, maxrealwidth;
  48             // temporary (depends on actual width of table)
  49 };
  50
  51 enum cellState
  52 {
  53     cellSpan,
  54     cellUsed,
  55     cellFree
  56 };
  57
  58 struct cellStruct
  59 {
  60     wxHtmlContainerCell *cont;
  61     int colspan, rowspan;
  62     int minheight, valign;
  63     cellState flag;
  64     bool nowrap;
  65 };
  66
  67
  68 class wxHtmlTableCell : public wxHtmlContainerCell
  69 {
  70 protected:
  71     /* These are real attributes: */
  72
  73     // should we draw borders or not?
  74     bool m_HasBorders;
  75     // number of columns; rows
  76     int m_NumCols, m_NumRows;
  77     // array of column information
  78     colStruct *m_ColsInfo;
  79     // 2D array of all cells in the table : m_CellInfo[row][column]
  80     cellStruct **m_CellInfo;
  81     // spaces between cells
  82     int m_Spacing;
  83     // cells internal indentation
  84     int m_Padding;
  85
  86 private:
  87     /* ...and these are valid only when parsing the table: */
  88
  89     // number of actual column (ranging from 0..m_NumCols)
  90     int m_ActualCol, m_ActualRow;
  91
  92     // default values (for table and row):
  93     wxColour m_tBkg, m_rBkg;
  94     wxString m_tValign, m_rValign;
  95
  96     double m_PixelScale;
  97
  98
  99 public:
 100     wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag, double pixel_scale = 1.0);
 101     ~wxHtmlTableCell();
 102
 103     virtual void RemoveExtraSpacing(bool top, bool bottom);
 104
 105     virtual void Layout(int w);
 106
 107     void AddRow(const wxHtmlTag& tag);
 108     void AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag);
 109
 110 private:
 111     // Reallocates memory to given number of cols/rows
 112     // and changes m_NumCols/m_NumRows value to reflect this change
 113     // NOTE! You CAN'T change m_NumCols/m_NumRows before calling this!!
 114     void ReallocCols(int cols);
 115     void ReallocRows(int rows);
 116
 117     // Computes minimal and maximal widths of columns. Needs to be called
 118     // only once, before first Layout().
 119     void ComputeMinMaxWidths();
 120
 121     DECLARE_NO_COPY_CLASS(wxHtmlTableCell)
 122 };
 123
 124
 125
 126 wxHtmlTableCell::wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag, double pixel_scale)
 127  : wxHtmlContainerCell(parent)
 128 {
 129     m_PixelScale = pixel_scale;
 130     m_HasBorders =
 131             (tag.HasParam(wxT("BORDER")) && tag.GetParam(wxT("BORDER")) != wxT("0"));
 132     m_ColsInfo = NULL;
 133     m_NumCols = m_NumRows = 0;
 134     m_CellInfo = NULL;
 135     m_ActualCol = m_ActualRow = -1;
 136
 137     /* scan params: */
 138     if (tag.HasParam(wxT("BGCOLOR")))
 139         tag.GetParamAsColour(wxT("BGCOLOR"), &m_tBkg);
 140     if (tag.HasParam(wxT("VALIGN")))
 141         m_tValign = tag.GetParam(wxT("VALIGN"));
 142     else
 143         m_tValign = wxEmptyString;
 144     if (!tag.GetParamAsInt(wxT("CELLSPACING"), &m_Spacing))
 145         m_Spacing = 2;
 146     if (!tag.GetParamAsInt(wxT("CELLPADDING"), &m_Padding))
 147         m_Padding = 3;
 148     m_Spacing = (int)(m_PixelScale * (double)m_Spacing);
 149     m_Padding = (int)(m_PixelScale * (double)m_Padding);
 150
 151     if (m_HasBorders)
 152         SetBorder(TABLE_BORDER_CLR_1, TABLE_BORDER_CLR_2);
 153 }
 154
 155
 156
 157 wxHtmlTableCell::~wxHtmlTableCell()
 158 {
 159     if (m_ColsInfo) free(m_ColsInfo);
 160     if (m_CellInfo)
 161     {
 162         for (int i = 0; i < m_NumRows; i++)
 163             free(m_CellInfo[i]);
 164         free(m_CellInfo);
 165     }
 166 }
 167
 168
 169 void wxHtmlTableCell::RemoveExtraSpacing(bool WXUNUSED(top),
 170                                          bool WXUNUSED(bottom))
 171 {
 172     // Don't remove any spacing in the table -- it's always desirable,
 173     // because it's part of table's definition.
 174     // (If wxHtmlContainerCell::RemoveExtraSpacing() was applied to tables,
 175     // then upper left cell of a table would be positioned above other cells
 176     // if the table was the first element on the page.)
 177 }
 178
 179 void wxHtmlTableCell::ReallocCols(int cols)
 180 {
 181     int i,j;
 182
 183     for (i = 0; i < m_NumRows; i++)
 184     {
 185         m_CellInfo[i] = (cellStruct*) realloc(m_CellInfo[i], sizeof(cellStruct) * cols);
 186         for (j = m_NumCols; j < cols; j++)
 187             m_CellInfo[i][j].flag = cellFree;
 188     }
 189
 190     m_ColsInfo = (colStruct*) realloc(m_ColsInfo, sizeof(colStruct) * cols);
 191     for (j = m_NumCols; j < cols; j++)
 192     {
 193            m_ColsInfo[j].width = 0;
 194            m_ColsInfo[j].units = wxHTML_UNITS_PERCENT;
 195            m_ColsInfo[j].minWidth = m_ColsInfo[j].maxWidth = -1;
 196     }
 197
 198     m_NumCols = cols;
 199 }
 200
 201
 202
 203 void wxHtmlTableCell::ReallocRows(int rows)
 204 {
 205     m_CellInfo = (cellStruct**) realloc(m_CellInfo, sizeof(cellStruct*) * rows);
 206     for (int row = m_NumRows; row < rows ; row++)
 207     {
 208         if (m_NumCols == 0)
 209             m_CellInfo[row] = NULL;
 210         else
 211         {
 212             m_CellInfo[row] = (cellStruct*) malloc(sizeof(cellStruct) * m_NumCols);
 213             for (int col = 0; col < m_NumCols; col++)
 214                 m_CellInfo[row][col].flag = cellFree;
 215         }
 216     }
 217     m_NumRows = rows;
 218 }
 219
 220
 221 void wxHtmlTableCell::AddRow(const wxHtmlTag& tag)
 222 {
 223     m_ActualCol = -1;
 224     // VS: real allocation of row entry is done in AddCell in order
 225     //     to correctly handle empty rows (i.e. "<tr></tr>")
 226     //     m_ActualCol == -1 indicates that AddCell has to allocate new row.
 227
 228     // scan params:
 229     m_rBkg = m_tBkg;
 230     if (tag.HasParam(wxT("BGCOLOR")))
 231         tag.GetParamAsColour(wxT("BGCOLOR"), &m_rBkg);
 232     if (tag.HasParam(wxT("VALIGN")))
 233         m_rValign = tag.GetParam(wxT("VALIGN"));
 234     else
 235         m_rValign = m_tValign;
 236 }
 237
 238
 239
 240 void wxHtmlTableCell::AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag)
 241 {
 242     // Is this cell in new row?
 243     // VS: we can't do it in AddRow, see my comment there
 244     if (m_ActualCol == -1)
 245     {
 246         if (m_ActualRow + 1 > m_NumRows - 1)
 247             ReallocRows(m_ActualRow + 2);
 248         m_ActualRow++;
 249     }
 250
 251     // cells & columns:
 252     do
 253     {
 254         m_ActualCol++;
 255     } while ((m_ActualCol < m_NumCols) &&
 256              (m_CellInfo[m_ActualRow][m_ActualCol].flag != cellFree));
 257
 258     if (m_ActualCol > m_NumCols - 1)
 259         ReallocCols(m_ActualCol + 1);
 260
 261     int r = m_ActualRow, c = m_ActualCol;
 262
 263     m_CellInfo[r][c].cont = cell;
 264     m_CellInfo[r][c].colspan = 1;
 265     m_CellInfo[r][c].rowspan = 1;
 266     m_CellInfo[r][c].flag = cellUsed;
 267     m_CellInfo[r][c].minheight = 0;
 268     m_CellInfo[r][c].valign = wxHTML_ALIGN_TOP;
 269
 270     /* scan for parameters: */
 271
 272     // width:
 273     {
 274         if (tag.HasParam(wxT("WIDTH")))
 275         {
 276             wxString wd = tag.GetParam(wxT("WIDTH"));
 277
 278             if (wd[wd.Length()-1] == wxT('%'))
 279             {
 280                 wxSscanf(wd.c_str(), wxT("%i%%"), &m_ColsInfo[c].width);
 281                 m_ColsInfo[c].units = wxHTML_UNITS_PERCENT;
 282             }
 283             else
 284             {
 285                 wxSscanf(wd.c_str(), wxT("%i"), &m_ColsInfo[c].width);
 286                 m_ColsInfo[c].width = (int)(m_PixelScale * (double)m_ColsInfo[c].width);
 287                 m_ColsInfo[c].units = wxHTML_UNITS_PIXELS;
 288             }
 289         }
 290     }
 291
 292
 293     // spanning:
 294     {
 295         tag.GetParamAsInt(wxT("COLSPAN"), &m_CellInfo[r][c].colspan);
 296         tag.GetParamAsInt(wxT("ROWSPAN"), &m_CellInfo[r][c].rowspan);
 297
 298         // VS: the standard says this about col/rowspan:
 299         //     "This attribute specifies the number of rows spanned by the
 300         //     current cell. The default value of this attribute is one ("1").
 301         //     The value zero ("0") means that the cell spans all rows from the
 302         //     current row to the last row of the table." All mainstream
 303         //     browsers act as if 0==1, though, and so does wxHTML.
 304         if (m_CellInfo[r][c].colspan < 1)
 305             m_CellInfo[r][c].colspan = 1;
 306         if (m_CellInfo[r][c].rowspan < 1)
 307             m_CellInfo[r][c].rowspan = 1;
 308
 309         if ((m_CellInfo[r][c].colspan > 1) || (m_CellInfo[r][c].rowspan > 1))
 310         {
 311             int i, j;
 312
 313             if (r + m_CellInfo[r][c].rowspan > m_NumRows)
 314                 ReallocRows(r + m_CellInfo[r][c].rowspan);
 315             if (c + m_CellInfo[r][c].colspan > m_NumCols)
 316                 ReallocCols(c + m_CellInfo[r][c].colspan);
 317             for (i = r; i < r + m_CellInfo[r][c].rowspan; i++)
 318                 for (j = c; j < c + m_CellInfo[r][c].colspan; j++)
 319                     m_CellInfo[i][j].flag = cellSpan;
 320             m_CellInfo[r][c].flag = cellUsed;
 321         }
 322     }
 323
 324     //background color:
 325     {
 326         wxColour bk = m_rBkg;
 327         if (tag.HasParam(wxT("BGCOLOR")))
 328             tag.GetParamAsColour(wxT("BGCOLOR"), &bk);
 329         if (bk.Ok())
 330             cell->SetBackgroundColour(bk);
 331     }
 332     if (m_HasBorders)
 333         cell->SetBorder(TABLE_BORDER_CLR_2, TABLE_BORDER_CLR_1);
 334
 335     // vertical alignment:
 336     {
 337         wxString valign;
 338         if (tag.HasParam(wxT("VALIGN")))
 339             valign = tag.GetParam(wxT("VALIGN"));
 340         else
 341             valign = m_tValign;
 342         valign.MakeUpper();
 343         if (valign == wxT("TOP"))
 344             m_CellInfo[r][c].valign = wxHTML_ALIGN_TOP;
 345         else if (valign == wxT("BOTTOM"))
 346             m_CellInfo[r][c].valign = wxHTML_ALIGN_BOTTOM;
 347         else m_CellInfo[r][c].valign = wxHTML_ALIGN_CENTER;
 348     }
 349
 350     // nowrap
 351     if (tag.HasParam(wxT("NOWRAP")))
 352         m_CellInfo[r][c].nowrap = true;
 353     else
 354         m_CellInfo[r][c].nowrap = false;
 355
 356     cell->SetIndent(m_Padding, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 357 }
 358
 359 void wxHtmlTableCell::ComputeMinMaxWidths()
 360 {
 361     if (m_NumCols == 0 || m_ColsInfo[0].minWidth != wxDefaultCoord) return;
 362
 363     m_MaxTotalWidth = 0;
 364     int percentage = 0;
 365     for (int c = 0; c < m_NumCols; c++)
 366     {
 367         for (int r = 0; r < m_NumRows; r++)
 368         {
 369             cellStruct& cell = m_CellInfo[r][c];
 370             if (cell.flag == cellUsed)
 371             {
 372                 cell.cont->Layout(2*m_Padding + 1);
 373                 int maxWidth = cell.cont->GetMaxTotalWidth();
 374                 int width = cell.nowrap?maxWidth:cell.cont->GetWidth();
 375                 width -= (cell.colspan-1) * m_Spacing;
 376                 maxWidth -= (cell.colspan-1) * m_Spacing;
 377                 // HTML 4.0 says it is acceptable to distribute min/max
 378                 width /= cell.colspan;
 379                 maxWidth /= cell.colspan;
 380                 for (int j = 0; j < cell.colspan; j++) {
 381                     if (width > m_ColsInfo[c+j].minWidth)
 382                         m_ColsInfo[c+j].minWidth = width;
 383                     if (maxWidth > m_ColsInfo[c+j].maxWidth)
 384                         m_ColsInfo[c+j].maxWidth = maxWidth;
 385                 }
 386             }
 387         }
 388         // Calculate maximum table width, required for nested tables
 389         if (m_ColsInfo[c].units == wxHTML_UNITS_PIXELS)
 390             m_MaxTotalWidth += wxMax(m_ColsInfo[c].width, m_ColsInfo[c].minWidth);
 391         else if ((m_ColsInfo[c].units == wxHTML_UNITS_PERCENT) && (m_ColsInfo[c].width != 0))
 392             percentage += m_ColsInfo[c].width;
 393         else
 394             m_MaxTotalWidth += m_ColsInfo[c].maxWidth;
 395     }
 396
 397     if (percentage >= 100)
 398     {
 399         // Table would have infinite length
 400         // Make it ridiculous large
 401         m_MaxTotalWidth = 0xFFFFFF;
 402     }
 403     else
 404         m_MaxTotalWidth = m_MaxTotalWidth * 100 / (100 - percentage);
 405
 406     m_MaxTotalWidth += (m_NumCols + 1) * m_Spacing;
 407 }
 408
 409 void wxHtmlTableCell::Layout(int w)
 410 {
 411     ComputeMinMaxWidths();
 412
 413     wxHtmlCell::Layout(w);
 414
 415     /*
 416
 417     WIDTH ADJUSTING :
 418
 419     */
 420
 421     if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT)
 422     {
 423         if (m_WidthFloat < 0)
 424         {
 425             if (m_WidthFloat < -100)
 426                 m_WidthFloat = -100;
 427             m_Width = (100 + m_WidthFloat) * w / 100;
 428         }
 429         else
 430         {
 431             if (m_WidthFloat > 100)
 432                 m_WidthFloat = 100;
 433             m_Width = m_WidthFloat * w / 100;
 434         }
 435     }
 436     else
 437     {
 438         if (m_WidthFloat < 0) m_Width = w + m_WidthFloat;
 439         else m_Width = m_WidthFloat;
 440     }
 441
 442
 443     /*
 444
 445     LAYOUTING :
 446
 447     */
 448
 449     /* 1.  setup columns widths:
 450
 451            The algorithm tries to keep the table size less than w if possible.
 452        */
 453     {
 454         int wpix = m_Width - (m_NumCols + 1) * m_Spacing;
 455         int i, j;
 456
 457         // 1a. setup fixed-width columns:
 458         for (i = 0; i < m_NumCols; i++)
 459             if (m_ColsInfo[i].units == wxHTML_UNITS_PIXELS)
 460             {
 461                 m_ColsInfo[i].pixwidth = wxMax(m_ColsInfo[i].width,
 462                                                m_ColsInfo[i].minWidth);
 463                 wpix -= m_ColsInfo[i].pixwidth;
 464             }
 465
 466         // 1b. Calculate maximum possible width if line wrapping would be disabled
 467         // Recalculate total width if m_WidthFloat is zero to keep tables as small
 468         // as possible.
 469         int maxWidth = 0;
 470         for (i = 0; i < m_NumCols; i++)
 471             if (m_ColsInfo[i].width == 0)
 472             {
 473                 maxWidth += m_ColsInfo[i].maxWidth;
 474             }
 475
 476         if (!m_WidthFloat)
 477         {
 478             // Recalculate table width since no table width was initially given
 479             int newWidth = m_Width - wpix +  maxWidth;
 480
 481             // Make sure that floating-width columns will have the right size.
 482             // Calculate sum of all floating-width columns
 483             int percentage = 0;
 484             for (i = 0; i < m_NumCols; i++)
 485                 if ((m_ColsInfo[i].units == wxHTML_UNITS_PERCENT) && (m_ColsInfo[i].width != 0))
 486                     percentage += m_ColsInfo[i].width;
 487
 488             if (percentage >= 100)
 489                 newWidth = w;
 490             else
 491                 newWidth = newWidth * 100 / (100 - percentage);
 492
 493             newWidth = wxMin(newWidth, w - (m_NumCols + 1) * m_Spacing);
 494             wpix -= m_Width - newWidth;
 495             m_Width = newWidth;
 496         }
 497
 498
 499         // 1c. setup floating-width columns:
 500         int wtemp = wpix;
 501         for (i = 0; i < m_NumCols; i++)
 502             if ((m_ColsInfo[i].units == wxHTML_UNITS_PERCENT) && (m_ColsInfo[i].width != 0))
 503             {
 504                 m_ColsInfo[i].pixwidth = wxMin(m_ColsInfo[i].width, 100) * wpix / 100;
 505
 506                 // Make sure to leave enough space for the other columns
 507                 int minRequired = 0;
 508                 for (j = 0; j < m_NumCols; j++)
 509                 {
 510                     if ((m_ColsInfo[j].units == wxHTML_UNITS_PERCENT && j > i) ||
 511                         !m_ColsInfo[j].width)
 512                         minRequired += m_ColsInfo[j].minWidth;
 513                 }
 514                 m_ColsInfo[i].pixwidth = wxMax(wxMin(wtemp - minRequired, m_ColsInfo[i].pixwidth), m_ColsInfo[i].minWidth);
 515
 516                 wtemp -= m_ColsInfo[i].pixwidth;
 517             }
 518         wpix = wtemp;
 519
 520         // 1d. setup default columns (no width specification supplied):
 521         // The algorithm assigns calculates the maximum possible width if line
 522         // wrapping would be disabled and assigns column width as a fraction
 523         // based upon the maximum width of a column
 524         // FIXME: I'm not sure if this algorithm is conform to HTML standard,
 525         //        though it seems to be much better than the old one
 526
 527         for (i = j = 0; i < m_NumCols; i++)
 528             if (m_ColsInfo[i].width == 0) j++;
 529         if (wpix < 0)
 530             wpix = 0;
 531
 532         // Assign widths
 533         for (i = 0; i < m_NumCols; i++)
 534             if (m_ColsInfo[i].width == 0)
 535             {
 536                 // Assign with, make sure not to drop below minWidth
 537                 if (maxWidth)
 538                     m_ColsInfo[i].pixwidth = (int)(wpix * (m_ColsInfo[i].maxWidth / (float)maxWidth) + 0.5);
 539                 else
 540                     m_ColsInfo[i].pixwidth = wpix / j;
 541
 542                 // Make sure to leave enough space for the other columns
 543                 int minRequired = 0;
 544                 int r;
 545                 for (r = i + 1; r < m_NumCols; r++)
 546                 {
 547                     if (!m_ColsInfo[r].width)
 548                         minRequired += m_ColsInfo[r].minWidth;
 549                 }
 550                 m_ColsInfo[i].pixwidth = wxMax(wxMin(wpix - minRequired, m_ColsInfo[i].pixwidth), m_ColsInfo[i].minWidth);
 551
 552                 if (maxWidth)
 553                 {
 554                     if (m_ColsInfo[i].pixwidth > (wpix * (m_ColsInfo[i].maxWidth / (float)maxWidth) + 0.5))
 555                     {
 556                         int diff = (int)(m_ColsInfo[i].pixwidth - (wpix * m_ColsInfo[i].maxWidth / (float)maxWidth + 0.5));
 557                         maxWidth += diff - m_ColsInfo[i].maxWidth;
 558                     }
 559                     else
 560                         maxWidth -= m_ColsInfo[i].maxWidth;
 561                 }
 562                 wpix -= m_ColsInfo[i].pixwidth;
 563             }
 564     }
 565
 566     /* 2.  compute positions of columns: */
 567     {
 568         int wpos = m_Spacing;
 569         for (int i = 0; i < m_NumCols; i++)
 570         {
 571             m_ColsInfo[i].leftpos = wpos;
 572             wpos += m_ColsInfo[i].pixwidth + m_Spacing;
 573         }
 574     }
 575
 576     /* 3.  sub-layout all cells: */
 577     {
 578         int *ypos = new int[m_NumRows + 1];
 579
 580         int actcol, actrow;
 581         int fullwid;
 582         wxHtmlContainerCell *actcell;
 583
 584         ypos[0] = m_Spacing;
 585         for (actrow = 1; actrow <= m_NumRows; actrow++) ypos[actrow] = -1;
 586         for (actrow = 0; actrow < m_NumRows; actrow++)
 587         {
 588             if (ypos[actrow] == -1) ypos[actrow] = ypos[actrow-1];
 589             // 3a. sub-layout and detect max height:
 590
 591             for (actcol = 0; actcol < m_NumCols; actcol++) {
 592                 if (m_CellInfo[actrow][actcol].flag != cellUsed) continue;
 593                 actcell = m_CellInfo[actrow][actcol].cont;
 594                 fullwid = 0;
 595                 for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++)
 596                     fullwid += m_ColsInfo[i].pixwidth;
 597                 fullwid += (m_CellInfo[actrow][actcol].colspan - 1) * m_Spacing;
 598                 actcell->SetMinHeight(m_CellInfo[actrow][actcol].minheight, m_CellInfo[actrow][actcol].valign);
 599                 actcell->Layout(fullwid);
 600
 601                 if (ypos[actrow] + actcell->GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing > ypos[actrow + m_CellInfo[actrow][actcol].rowspan])
 602                     ypos[actrow + m_CellInfo[actrow][actcol].rowspan] =
 603                             ypos[actrow] + actcell->GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing;
 604             }
 605         }
 606
 607         for (actrow = 0; actrow < m_NumRows; actrow++)
 608         {
 609             // 3b. place cells in row & let'em all have same height:
 610
 611             for (actcol = 0; actcol < m_NumCols; actcol++)
 612             {
 613                 if (m_CellInfo[actrow][actcol].flag != cellUsed) continue;
 614                 actcell = m_CellInfo[actrow][actcol].cont;
 615                 actcell->SetMinHeight(
 616                                  ypos[actrow + m_CellInfo[actrow][actcol].rowspan] - ypos[actrow] -  m_Spacing,
 617                                  m_CellInfo[actrow][actcol].valign);
 618                 fullwid = 0;
 619                 for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++)
 620                     fullwid += m_ColsInfo[i].pixwidth;
 621                 fullwid += (m_CellInfo[actrow][actcol].colspan - 1) * m_Spacing;
 622                 actcell->Layout(fullwid);
 623                 actcell->SetPos(m_ColsInfo[actcol].leftpos, ypos[actrow]);
 624             }
 625         }
 626         m_Height = ypos[m_NumRows];
 627         delete[] ypos;
 628     }
 629
 630     /* 4. adjust table's width if it was too small: */
 631     if (m_NumCols > 0)
 632     {
 633         int twidth = m_ColsInfo[m_NumCols-1].leftpos +
 634                      m_ColsInfo[m_NumCols-1].pixwidth + m_Spacing;
 635         if (twidth > m_Width)
 636             m_Width = twidth;
 637     }
 638 }
 639
 640
 641
 642
 643
 644
 645 //-----------------------------------------------------------------------------
 646 // The tables handler:
 647 //-----------------------------------------------------------------------------
 648
 649
 650 TAG_HANDLER_BEGIN(TABLE, "TABLE,TR,TD,TH")
 651
 652     TAG_HANDLER_VARS
 653         wxHtmlTableCell* m_Table;
 654         wxString m_tAlign, m_rAlign;
 655
 656     TAG_HANDLER_CONSTR(TABLE)
 657     {
 658         m_Table = NULL;
 659         m_tAlign = m_rAlign = wxEmptyString;
 660     }
 661
 662
 663     TAG_HANDLER_PROC(tag)
 664     {
 665         wxHtmlContainerCell *c;
 666
 667         // new table started, backup upper-level table (if any) and create new:
 668         if (tag.GetName() == wxT("TABLE"))
 669         {
 670             wxHtmlTableCell *oldt = m_Table;
 671             wxHtmlContainerCell *oldcont;
 672
 673             oldcont = c = m_WParser->OpenContainer();
 674
 675             m_Table = new wxHtmlTableCell(c, tag);
 676
 677             // width:
 678             {
 679                 if (tag.HasParam(wxT("WIDTH")))
 680                 {
 681                     wxString wd = tag.GetParam(wxT("WIDTH"));
 682
 683                     if (wd[wd.Length()-1] == wxT('%'))
 684                     {
 685                         int width = 0;
 686                         wxSscanf(wd.c_str(), wxT("%i%%"), &width);
 687                         m_Table->SetWidthFloat(width, wxHTML_UNITS_PERCENT);
 688                     }
 689                     else
 690                     {
 691                         int width = 0;
 692                         wxSscanf(wd.c_str(), wxT("%i"), &width);
 693                         m_Table->SetWidthFloat((int)(m_WParser->GetPixelScale() * width), wxHTML_UNITS_PIXELS);
 694                     }
 695                 }
 696                 else
 697                     m_Table->SetWidthFloat(0, wxHTML_UNITS_PIXELS);
 698             }
 699             int oldAlign = m_WParser->GetAlign();
 700             m_tAlign = wxEmptyString;
 701             if (tag.HasParam(wxT("ALIGN")))
 702                 m_tAlign = tag.GetParam(wxT("ALIGN"));
 703
 704             ParseInner(tag);
 705
 706             m_WParser->SetAlign(oldAlign);
 707             m_WParser->SetContainer(oldcont);
 708             m_WParser->CloseContainer();
 709
 710             m_Table = oldt;
 711             return true;
 712         }
 713
 714
 715         else if (m_Table)
 716         {
 717             // new row in table
 718             if (tag.GetName() == wxT("TR"))
 719             {
 720                 m_Table->AddRow(tag);
 721                 m_rAlign = m_tAlign;
 722                 if (tag.HasParam(wxT("ALIGN")))
 723                     m_rAlign = tag.GetParam(wxT("ALIGN"));
 724             }
 725
 726             // new cell
 727             else
 728             {
 729                 c = m_WParser->SetContainer(new wxHtmlContainerCell(m_Table));
 730                 m_Table->AddCell(c, tag);
 731
 732                 m_WParser->OpenContainer();
 733
 734                 if (tag.GetName() == wxT("TH")) /*header style*/
 735                     m_WParser->SetAlign(wxHTML_ALIGN_CENTER);
 736                 else
 737                     m_WParser->SetAlign(wxHTML_ALIGN_LEFT);
 738
 739                 wxString als;
 740
 741                 als = m_rAlign;
 742                 if (tag.HasParam(wxT("ALIGN")))
 743                     als = tag.GetParam(wxT("ALIGN"));
 744                 als.MakeUpper();
 745                 if (als == wxT("RIGHT"))
 746                     m_WParser->SetAlign(wxHTML_ALIGN_RIGHT);
 747                 else if (als == wxT("LEFT"))
 748                     m_WParser->SetAlign(wxHTML_ALIGN_LEFT);
 749                 else if (als == wxT("CENTER"))
 750                     m_WParser->SetAlign(wxHTML_ALIGN_CENTER);
 751
 752                 m_WParser->OpenContainer();
 753             }
 754         }
 755         return false;
 756     }
 757
 758 TAG_HANDLER_END(TABLE)
 759
 760
 761
 762
 763
 764 TAGS_MODULE_BEGIN(Tables)
 765
 766     TAGS_MODULE_ADD(TABLE)
 767
 768 TAGS_MODULE_END(Tables)
 769
 770
 771 #endif