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5526e819 VS |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: mod_tables.cpp | |
3 | // Purpose: wxHtml module for tables | |
4 | // Author: Vaclav Slavik | |
69941f05 | 5 | // RCS-ID: $Id$ |
5526e819 VS |
6 | // Copyright: (c) 1999 Vaclav Slavik |
7 | // Licence: wxWindows Licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
3364ab79 RS |
10 | #ifdef __GNUG__ |
11 | #pragma implementation | |
12 | #endif | |
13 | ||
14 | #include <wx/wxprec.h> | |
15 | ||
5526e819 | 16 | #if wxUSE_HTML |
3364ab79 RS |
17 | #ifdef __BORDLANDC__ |
18 | #pragma hdrstop | |
19 | #endif | |
20 | ||
21 | #ifndef WXPRECOMP | |
22 | #include <wx/wx.h> | |
23 | #endif | |
24 | ||
5526e819 VS |
25 | |
26 | /* | |
27 | REMARKS: | |
28 | 1. This version of mod_tables doesn't support auto-layout algorithm. | |
29 | This means that all columns are of same width unless explicitly specified. | |
30 | */ | |
31 | ||
32 | ||
69941f05 VS |
33 | #include "wx/html/forcelnk.h" |
34 | #include "wx/html/m_templ.h" | |
5526e819 | 35 | |
69941f05 | 36 | #include "wx/html/htmlcell.h" |
5526e819 VS |
37 | |
38 | FORCE_LINK_ME(mod_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; // universal | |
52 | int leftpos, pixwidth, maxrealwidth; // temporary (depends on width of table) | |
53 | } colStruct; | |
54 | ||
55 | typedef enum { | |
56 | cellSpan, | |
57 | cellUsed, | |
58 | cellFree | |
59 | } cellState; | |
60 | ||
61 | typedef struct { | |
62 | wxHtmlContainerCell *cont; | |
63 | int colspan, rowspan; | |
64 | int minheight, valign; | |
65 | cellState flag; | |
66 | } cellStruct; | |
67 | ||
68 | ||
69 | class wxHtmlTableCell : public wxHtmlContainerCell | |
70 | { | |
71 | protected: | |
72 | /* These are real attributes: */ | |
73 | bool m_HasBorders; | |
74 | // should we draw borders or not? | |
75 | int m_NumCols, m_NumRows; | |
76 | // number of columns; rows | |
77 | colStruct *m_ColsInfo; | |
78 | // array of column information | |
79 | cellStruct **m_CellInfo; | |
80 | // 2D array of all cells in the table : m_CellInfo[row][column] | |
81 | int m_Spacing; | |
82 | // spaces between cells | |
83 | int m_Padding; | |
84 | // cells internal indentation | |
85 | ||
86 | private: | |
87 | /* ...and these are valid only during parsing of table: */ | |
88 | int m_ActualCol, m_ActualRow; | |
89 | // number of actual column (ranging from 0..m_NumCols) | |
90 | ||
91 | // default values (for table and row): | |
92 | int m_tBkg, m_rBkg; | |
93 | wxString m_tValign, m_rValign; | |
94 | ||
95 | ||
96 | public: | |
97 | wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag); | |
98 | ~wxHtmlTableCell(); | |
99 | virtual void Layout(int w); | |
100 | ||
101 | void AddRow(const wxHtmlTag& tag); | |
102 | void AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag); | |
103 | private: | |
104 | void ReallocCols(int cols); | |
105 | void ReallocRows(int rows); | |
106 | // reallocates memory to given number of cols/rows | |
107 | // and changes m_NumCols/m_NumRows value to reflect this change | |
108 | // NOTE! You CAN'T change m_NumCols/m_NumRows before calling this!! | |
109 | }; | |
110 | ||
111 | ||
112 | ||
113 | wxHtmlTableCell::wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag) | |
114 | : wxHtmlContainerCell(parent) | |
115 | { | |
2136a764 | 116 | m_HasBorders = (tag.HasParam("BORDER") && tag.GetParam("BORDER") != "0"); |
5526e819 VS |
117 | m_ColsInfo = NULL; |
118 | m_NumCols = m_NumRows = 0; | |
119 | m_CellInfo = NULL; | |
120 | m_ActualCol = m_ActualRow = -1; | |
121 | ||
122 | /* scan params: */ | |
123 | m_tBkg = m_rBkg = -1; | |
124 | if (tag.HasParam("BGCOLOR")) tag.ScanParam("BGCOLOR", "#%lX", &m_tBkg); | |
125 | if (tag.HasParam("VALIGN")) m_tValign = tag.GetParam("VALIGN"); else m_tValign = wxEmptyString; | |
72aa4a98 VS |
126 | if (tag.HasParam("CELLSPACING") && tag.ScanParam("CELLSPACING", "%i", &m_Spacing) == 1) {} else m_Spacing = 2; |
127 | if (tag.HasParam("CELLPADDING") && tag.ScanParam("CELLPADDING", "%i", &m_Padding) == 1) {} else m_Padding = 3; | |
5526e819 VS |
128 | |
129 | if (m_HasBorders) | |
130 | SetBorder(TABLE_BORDER_CLR_1, TABLE_BORDER_CLR_2); | |
131 | } | |
132 | ||
133 | ||
134 | ||
135 | wxHtmlTableCell::~wxHtmlTableCell() | |
136 | { | |
137 | if (m_ColsInfo) free(m_ColsInfo); | |
138 | if (m_CellInfo) { | |
139 | for (int i = 0; i < m_NumRows; i++) | |
140 | free(m_CellInfo[i]); | |
141 | free(m_CellInfo); | |
142 | } | |
143 | } | |
144 | ||
145 | ||
146 | ||
147 | void wxHtmlTableCell::ReallocCols(int cols) | |
148 | { | |
149 | int i,j; | |
150 | ||
151 | for (i = 0; i < m_NumRows; i++) { | |
152 | m_CellInfo[i] = (cellStruct*) realloc(m_CellInfo[i], sizeof(cellStruct) * cols); | |
153 | for (j = m_NumCols; j < cols; j++) | |
154 | m_CellInfo[i][j].flag = cellFree; | |
155 | } | |
156 | ||
157 | m_ColsInfo = (colStruct*) realloc(m_ColsInfo, sizeof(colStruct) * cols); | |
158 | for (j = m_NumCols; j < cols; j++) { | |
159 | m_ColsInfo[j].width = 0; | |
efba2b89 | 160 | m_ColsInfo[j].units = wxHTML_UNITS_PERCENT; |
5526e819 VS |
161 | } |
162 | ||
163 | m_NumCols = cols; | |
164 | } | |
165 | ||
166 | ||
167 | ||
168 | void wxHtmlTableCell::ReallocRows(int rows) | |
169 | { | |
170 | m_CellInfo = (cellStruct**) realloc(m_CellInfo, sizeof(cellStruct*) * rows); | |
171 | if (m_NumCols != 0) { | |
172 | int x = rows - 1; | |
af23d90a | 173 | m_CellInfo[x] = (cellStruct*) malloc(sizeof(cellStruct) * m_NumCols); |
5526e819 VS |
174 | for (int i = 0; i < m_NumCols; i++) |
175 | m_CellInfo[x][i].flag = cellFree; | |
176 | } | |
177 | else | |
178 | m_CellInfo[rows - 1] = NULL; | |
179 | m_NumRows = rows; | |
180 | } | |
181 | ||
182 | ||
183 | ||
184 | void wxHtmlTableCell::AddRow(const wxHtmlTag& tag) | |
185 | { | |
186 | if (m_ActualRow + 1 > m_NumRows - 1) | |
187 | ReallocRows(m_ActualRow + 2); | |
188 | m_ActualRow++; | |
189 | m_ActualCol = -1; | |
190 | ||
191 | /* scan params: */ | |
192 | m_rBkg = m_tBkg; | |
193 | if (tag.HasParam("BGCOLOR")) tag.ScanParam("BGCOLOR", "#%lX", &m_rBkg); | |
194 | if (tag.HasParam("VALIGN")) m_rValign = tag.GetParam("VALIGN"); else m_rValign = m_tValign; | |
195 | } | |
196 | ||
197 | ||
198 | ||
199 | void wxHtmlTableCell::AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag) | |
200 | { | |
201 | do { | |
202 | m_ActualCol++; | |
203 | } while ((m_ActualCol < m_NumCols) && (m_CellInfo[m_ActualRow][m_ActualCol].flag != cellFree)); | |
204 | if (m_ActualCol > m_NumCols - 1) | |
205 | ReallocCols(m_ActualCol + 1); | |
206 | ||
207 | int r = m_ActualRow, c = m_ActualCol; | |
208 | ||
209 | m_CellInfo[r][c].cont = cell; | |
210 | m_CellInfo[r][c].colspan = 1; | |
211 | m_CellInfo[r][c].rowspan = 1; | |
212 | m_CellInfo[r][c].flag = cellUsed; | |
213 | m_CellInfo[r][c].minheight = 0; | |
efba2b89 | 214 | m_CellInfo[r][c].valign = wxHTML_ALIGN_TOP; |
5526e819 VS |
215 | |
216 | /* scan for parameters: */ | |
217 | ||
218 | // width: | |
219 | { | |
220 | if (tag.HasParam("WIDTH")) { | |
221 | wxString wd = tag.GetParam("WIDTH"); | |
222 | ||
223 | if (wd[wd.Length()-1] == '%') { | |
224 | sscanf(wd.c_str(), "%i%%", &m_ColsInfo[c].width); | |
efba2b89 | 225 | m_ColsInfo[c].units = wxHTML_UNITS_PERCENT; |
5526e819 VS |
226 | } |
227 | else { | |
228 | sscanf(wd.c_str(), "%i", &m_ColsInfo[c].width); | |
efba2b89 | 229 | m_ColsInfo[c].units = wxHTML_UNITS_PIXELS; |
5526e819 VS |
230 | } |
231 | } | |
232 | } | |
233 | ||
234 | ||
235 | // spanning: | |
236 | { | |
237 | if (tag.HasParam("COLSPAN")) tag.ScanParam("COLSPAN", "%i", &m_CellInfo[r][c].colspan); | |
238 | if (tag.HasParam("ROWSPAN")) tag.ScanParam("ROWSPAN", "%i", &m_CellInfo[r][c].rowspan); | |
239 | if ((m_CellInfo[r][c].colspan != 1) || (m_CellInfo[r][c].rowspan != 1)) { | |
240 | int i, j; | |
241 | ||
242 | if (r + m_CellInfo[r][c].rowspan > m_NumRows) ReallocRows(r + m_CellInfo[r][c].rowspan); | |
243 | if (c + m_CellInfo[r][c].colspan > m_NumCols) ReallocCols(c + m_CellInfo[r][c].colspan); | |
244 | for (i = r; i < r + m_CellInfo[r][c].rowspan; i++) | |
245 | for (j = c; j < c + m_CellInfo[r][c].colspan; j++) | |
246 | m_CellInfo[i][j].flag = cellSpan; | |
247 | m_CellInfo[r][c].flag = cellUsed; | |
248 | } | |
249 | } | |
250 | ||
251 | //background color: | |
252 | { | |
253 | int bk = m_rBkg; | |
254 | if (tag.HasParam("BGCOLOR")) tag.ScanParam("BGCOLOR", "#%lX", &bk); | |
255 | if (bk != -1) { | |
256 | wxColour clr = wxColour((bk & 0xFF0000) >> 16 , (bk & 0x00FF00) >> 8, (bk & 0x0000FF)); | |
257 | cell -> SetBackgroundColour(clr); | |
258 | } | |
259 | } | |
260 | if (m_HasBorders) | |
261 | cell -> SetBorder(TABLE_BORDER_CLR_2, TABLE_BORDER_CLR_1); | |
262 | ||
263 | // vertical alignment: | |
264 | { | |
265 | wxString valign; | |
266 | if (tag.HasParam("VALIGN")) valign = tag.GetParam("VALIGN"); else valign = m_tValign; | |
267 | valign.MakeUpper(); | |
efba2b89 VS |
268 | if (valign == "TOP") m_CellInfo[r][c].valign = wxHTML_ALIGN_TOP; |
269 | else if (valign == "BOTTOM") m_CellInfo[r][c].valign = wxHTML_ALIGN_BOTTOM; | |
270 | else m_CellInfo[r][c].valign = wxHTML_ALIGN_CENTER; | |
5526e819 VS |
271 | } |
272 | ||
efba2b89 | 273 | cell -> SetIndent(m_Padding, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS); |
5526e819 VS |
274 | } |
275 | ||
276 | ||
277 | ||
278 | ||
279 | ||
280 | void wxHtmlTableCell::Layout(int w) | |
281 | { | |
282 | /* | |
283 | ||
284 | WIDTH ADJUSTING : | |
285 | ||
286 | */ | |
287 | ||
efba2b89 | 288 | if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT) { |
5526e819 VS |
289 | if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100; |
290 | else m_Width = m_WidthFloat * w / 100; | |
291 | } | |
292 | else { | |
293 | if (m_WidthFloat < 0) m_Width = w + m_WidthFloat; | |
294 | else m_Width = m_WidthFloat; | |
295 | } | |
296 | ||
297 | ||
298 | /* | |
299 | ||
300 | LAYOUTING : | |
301 | ||
302 | */ | |
303 | ||
304 | /* 1. setup columns widths: */ | |
305 | { | |
306 | int wpix = m_Width - (m_NumCols + 1) * m_Spacing; | |
307 | int i, j; | |
308 | int wtemp = 0; | |
309 | ||
310 | // 1a. setup fixed-width columns: | |
311 | for (i = 0; i < m_NumCols; i++) | |
efba2b89 | 312 | if (m_ColsInfo[i].units == wxHTML_UNITS_PIXELS) |
5526e819 VS |
313 | wpix -= (m_ColsInfo[i].pixwidth = m_ColsInfo[i].width); |
314 | ||
315 | // 1b. setup floating-width columns: | |
316 | for (i = 0; i < m_NumCols; i++) | |
efba2b89 | 317 | if ((m_ColsInfo[i].units == wxHTML_UNITS_PERCENT) && (m_ColsInfo[i].width != 0)) |
5526e819 VS |
318 | wtemp += (m_ColsInfo[i].pixwidth = m_ColsInfo[i].width * wpix / 100); |
319 | wpix -= wtemp; | |
320 | ||
321 | // 1c. setup defalut columns (no width specification supplied): | |
322 | // NOTE! This algorithm doesn't conform to HTML standard : it assigns equal widths | |
323 | // instead of optimal | |
324 | for (i = j = 0; i < m_NumCols; i++) | |
325 | if (m_ColsInfo[i].width == 0) j++; | |
326 | for (i = 0; i < m_NumCols; i++) | |
327 | if (m_ColsInfo[i].width == 0) | |
328 | m_ColsInfo[i].pixwidth = wpix / j; | |
329 | } | |
330 | ||
331 | /* 2. compute positions of columns: */ | |
332 | { | |
333 | int wpos = m_Spacing; | |
334 | for (int i = 0; i < m_NumCols; i++) { | |
335 | m_ColsInfo[i].leftpos = wpos; | |
336 | wpos += m_ColsInfo[i].pixwidth + m_Spacing; | |
337 | } | |
338 | } | |
339 | ||
340 | /* 3. sub-layout all cells: */ | |
341 | { | |
2776d7c3 | 342 | int *ypos = new int[m_NumRows + 1]; |
5526e819 VS |
343 | |
344 | int actcol, actrow; | |
345 | int fullwid; | |
346 | wxHtmlContainerCell *actcell; | |
347 | ||
348 | for (actrow = 0; actrow <= m_NumRows; actrow++) ypos[actrow] = m_Spacing; | |
349 | ||
350 | for (actrow = 0; actrow < m_NumRows; actrow++) { | |
351 | ||
352 | // 3a. sub-layout and detect max height: | |
353 | ||
354 | for (actcol = 0; actcol < m_NumCols; actcol++) { | |
355 | if (m_CellInfo[actrow][actcol].flag != cellUsed) continue; | |
356 | actcell = m_CellInfo[actrow][actcol].cont; | |
357 | fullwid = 0; | |
358 | for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++) | |
359 | fullwid += m_ColsInfo[i].pixwidth; | |
360 | actcell -> SetMinHeight(m_CellInfo[actrow][actcol].minheight, m_CellInfo[actrow][actcol].valign); | |
361 | actcell -> Layout(fullwid); | |
362 | ||
363 | if (ypos[actrow] + actcell -> GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing > ypos[actrow + m_CellInfo[actrow][actcol].rowspan]) | |
364 | ypos[actrow + m_CellInfo[actrow][actcol].rowspan] = | |
365 | ypos[actrow] + actcell -> GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing; | |
366 | } | |
367 | } | |
368 | ||
369 | ||
370 | for (actrow = 0; actrow < m_NumRows; actrow++) { | |
371 | ||
372 | // 3b. place cells in row & let'em all have same height: | |
373 | ||
374 | for (actcol = 0; actcol < m_NumCols; actcol++) { | |
375 | if (m_CellInfo[actrow][actcol].flag != cellUsed) continue; | |
376 | actcell = m_CellInfo[actrow][actcol].cont; | |
377 | actcell -> SetMinHeight( | |
378 | ypos[actrow + m_CellInfo[actrow][actcol].rowspan] - ypos[actrow] - m_CellInfo[actrow][actcol].rowspan * m_Spacing, | |
379 | m_CellInfo[actrow][actcol].valign); | |
380 | fullwid = 0; | |
381 | for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++) | |
382 | fullwid += m_ColsInfo[i].pixwidth; | |
383 | actcell -> Layout(fullwid); | |
384 | actcell -> SetPos(m_ColsInfo[actcol].leftpos, ypos[actrow]); | |
385 | } | |
386 | ||
387 | } | |
388 | m_Height = ypos[m_NumRows]; | |
2776d7c3 | 389 | delete[] ypos; |
5526e819 VS |
390 | } |
391 | } | |
392 | ||
393 | ||
394 | ||
395 | ||
396 | ||
397 | ||
398 | //----------------------------------------------------------------------------- | |
399 | // The tables handler: | |
400 | //----------------------------------------------------------------------------- | |
401 | ||
402 | ||
403 | TAG_HANDLER_BEGIN(TABLE, "TABLE,TR,TD,TH") | |
404 | ||
405 | TAG_HANDLER_VARS | |
406 | wxHtmlTableCell* m_Table; | |
407 | wxString m_tAlign, m_rAlign; | |
408 | int m_OldAlign; | |
409 | ||
410 | TAG_HANDLER_CONSTR(TABLE) | |
411 | { | |
412 | m_Table = NULL; | |
413 | m_tAlign = m_rAlign = wxEmptyString; | |
efba2b89 | 414 | m_OldAlign = wxHTML_ALIGN_LEFT; |
5526e819 VS |
415 | } |
416 | ||
417 | ||
418 | TAG_HANDLER_PROC(tag) | |
419 | { | |
420 | wxHtmlContainerCell *c; | |
421 | ||
422 | // new table started, backup upper-level table (if any) and create new: | |
423 | if (tag.GetName() == "TABLE") { | |
424 | wxHtmlTableCell *oldt = m_Table; | |
425 | wxHtmlContainerCell *oldcont; | |
426 | int m_OldAlign; | |
427 | ||
428 | oldcont = c = m_WParser -> OpenContainer(); | |
429 | ||
430 | c -> SetWidthFloat(tag); | |
431 | m_Table = new wxHtmlTableCell(c, tag); | |
432 | m_OldAlign = m_WParser -> GetAlign(); | |
433 | m_tAlign = wxEmptyString; | |
434 | if (tag.HasParam("ALIGN")) m_tAlign = tag.GetParam("ALIGN"); | |
435 | ||
436 | ParseInner(tag); | |
437 | ||
438 | m_WParser -> SetAlign(m_OldAlign); | |
439 | m_WParser -> SetContainer(oldcont); | |
440 | m_WParser -> CloseContainer(); | |
441 | m_Table = oldt; | |
442 | return TRUE; | |
443 | } | |
444 | ||
445 | ||
446 | else if (m_Table && !tag.IsEnding()) { | |
447 | // new row in table | |
448 | if (tag.GetName() == "TR") { | |
449 | m_Table -> AddRow(tag); | |
450 | m_rAlign = m_tAlign; | |
451 | if (tag.HasParam("ALIGN")) m_rAlign = tag.GetParam("ALIGN"); | |
452 | } | |
453 | ||
454 | // new cell | |
455 | else { | |
456 | m_WParser -> SetAlign(m_OldAlign); | |
457 | c = m_WParser -> SetContainer(new wxHtmlContainerCell(m_Table)); | |
458 | m_Table -> AddCell(c, tag); | |
459 | ||
460 | m_WParser -> OpenContainer(); | |
461 | ||
462 | if (tag.GetName() == "TH") /*header style*/ { | |
efba2b89 | 463 | m_WParser -> SetAlign(wxHTML_ALIGN_CENTER); |
5526e819 VS |
464 | } |
465 | ||
466 | { | |
467 | wxString als; | |
468 | ||
469 | als = m_rAlign; | |
470 | if (tag.HasParam("ALIGN")) als = tag.GetParam("ALIGN"); | |
471 | als.MakeUpper(); | |
efba2b89 VS |
472 | if (als == "RIGHT") m_WParser -> SetAlign(wxHTML_ALIGN_RIGHT); |
473 | else if (als == "CENTER") m_WParser -> SetAlign(wxHTML_ALIGN_CENTER); | |
5526e819 VS |
474 | } |
475 | m_WParser -> OpenContainer(); | |
476 | } | |
477 | } | |
478 | return FALSE; | |
479 | } | |
480 | ||
481 | TAG_HANDLER_END(TABLE) | |
482 | ||
483 | ||
484 | ||
485 | ||
486 | ||
487 | TAGS_MODULE_BEGIN(Tables) | |
488 | ||
489 | TAGS_MODULE_ADD(TABLE) | |
490 | ||
491 | TAGS_MODULE_END(Tables) | |
492 | ||
493 | ||
494 | #endif |