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5526e819 VS |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: mod_tables.cpp | |
3 | // Purpose: wxHtml module for tables | |
4 | // Author: Vaclav Slavik | |
5 | // Copyright: (c) 1999 Vaclav Slavik | |
6 | // Licence: wxWindows Licence | |
7 | ///////////////////////////////////////////////////////////////////////////// | |
8 | ||
3364ab79 RS |
9 | #ifdef __GNUG__ |
10 | #pragma implementation | |
11 | #endif | |
12 | ||
13 | #include <wx/wxprec.h> | |
14 | ||
5526e819 | 15 | #if wxUSE_HTML |
3364ab79 RS |
16 | #ifdef __BORDLANDC__ |
17 | #pragma hdrstop | |
18 | #endif | |
19 | ||
20 | #ifndef WXPRECOMP | |
21 | #include <wx/wx.h> | |
22 | #endif | |
23 | ||
5526e819 VS |
24 | |
25 | /* | |
26 | REMARKS: | |
27 | 1. This version of mod_tables doesn't support auto-layout algorithm. | |
28 | This means that all columns are of same width unless explicitly specified. | |
29 | */ | |
30 | ||
31 | ||
32 | #include <wx/html/forcelink.h> | |
33 | #include <wx/html/mod_templ.h> | |
34 | ||
35 | #include <wx/html/htmlcell.h> | |
36 | ||
37 | FORCE_LINK_ME(mod_tables) | |
38 | ||
39 | ||
40 | #define TABLE_BORDER_CLR_1 wxColour(0xC5, 0xC2, 0xC5) | |
41 | #define TABLE_BORDER_CLR_2 wxColour(0x62, 0x61, 0x62) | |
42 | ||
43 | ||
44 | //----------------------------------------------------------------------------- | |
45 | // wxHtmlTableCell | |
46 | //----------------------------------------------------------------------------- | |
47 | ||
48 | ||
49 | typedef struct { | |
50 | int width, units; // universal | |
51 | int leftpos, pixwidth, maxrealwidth; // temporary (depends on width of table) | |
52 | } colStruct; | |
53 | ||
54 | typedef enum { | |
55 | cellSpan, | |
56 | cellUsed, | |
57 | cellFree | |
58 | } cellState; | |
59 | ||
60 | typedef struct { | |
61 | wxHtmlContainerCell *cont; | |
62 | int colspan, rowspan; | |
63 | int minheight, valign; | |
64 | cellState flag; | |
65 | } cellStruct; | |
66 | ||
67 | ||
68 | class wxHtmlTableCell : public wxHtmlContainerCell | |
69 | { | |
70 | protected: | |
71 | /* These are real attributes: */ | |
72 | bool m_HasBorders; | |
73 | // should we draw borders or not? | |
74 | int m_NumCols, m_NumRows; | |
75 | // number of columns; rows | |
76 | colStruct *m_ColsInfo; | |
77 | // array of column information | |
78 | cellStruct **m_CellInfo; | |
79 | // 2D array of all cells in the table : m_CellInfo[row][column] | |
80 | int m_Spacing; | |
81 | // spaces between cells | |
82 | int m_Padding; | |
83 | // cells internal indentation | |
84 | ||
85 | private: | |
86 | /* ...and these are valid only during parsing of table: */ | |
87 | int m_ActualCol, m_ActualRow; | |
88 | // number of actual column (ranging from 0..m_NumCols) | |
89 | ||
90 | // default values (for table and row): | |
91 | int m_tBkg, m_rBkg; | |
92 | wxString m_tValign, m_rValign; | |
93 | ||
94 | ||
95 | public: | |
96 | wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag); | |
97 | ~wxHtmlTableCell(); | |
98 | virtual void Layout(int w); | |
99 | ||
100 | void AddRow(const wxHtmlTag& tag); | |
101 | void AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag); | |
102 | private: | |
103 | void ReallocCols(int cols); | |
104 | void ReallocRows(int rows); | |
105 | // reallocates memory to given number of cols/rows | |
106 | // and changes m_NumCols/m_NumRows value to reflect this change | |
107 | // NOTE! You CAN'T change m_NumCols/m_NumRows before calling this!! | |
108 | }; | |
109 | ||
110 | ||
111 | ||
112 | wxHtmlTableCell::wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag) | |
113 | : wxHtmlContainerCell(parent) | |
114 | { | |
115 | m_HasBorders = tag.HasParam("BORDER"); | |
116 | m_ColsInfo = NULL; | |
117 | m_NumCols = m_NumRows = 0; | |
118 | m_CellInfo = NULL; | |
119 | m_ActualCol = m_ActualRow = -1; | |
120 | ||
121 | /* scan params: */ | |
122 | m_tBkg = m_rBkg = -1; | |
123 | if (tag.HasParam("BGCOLOR")) tag.ScanParam("BGCOLOR", "#%lX", &m_tBkg); | |
124 | if (tag.HasParam("VALIGN")) m_tValign = tag.GetParam("VALIGN"); else m_tValign = wxEmptyString; | |
72aa4a98 VS |
125 | if (tag.HasParam("CELLSPACING") && tag.ScanParam("CELLSPACING", "%i", &m_Spacing) == 1) {} else m_Spacing = 2; |
126 | if (tag.HasParam("CELLPADDING") && tag.ScanParam("CELLPADDING", "%i", &m_Padding) == 1) {} else m_Padding = 3; | |
5526e819 VS |
127 | |
128 | if (m_HasBorders) | |
129 | SetBorder(TABLE_BORDER_CLR_1, TABLE_BORDER_CLR_2); | |
130 | } | |
131 | ||
132 | ||
133 | ||
134 | wxHtmlTableCell::~wxHtmlTableCell() | |
135 | { | |
136 | if (m_ColsInfo) free(m_ColsInfo); | |
137 | if (m_CellInfo) { | |
138 | for (int i = 0; i < m_NumRows; i++) | |
139 | free(m_CellInfo[i]); | |
140 | free(m_CellInfo); | |
141 | } | |
142 | } | |
143 | ||
144 | ||
145 | ||
146 | void wxHtmlTableCell::ReallocCols(int cols) | |
147 | { | |
148 | int i,j; | |
149 | ||
150 | for (i = 0; i < m_NumRows; i++) { | |
151 | m_CellInfo[i] = (cellStruct*) realloc(m_CellInfo[i], sizeof(cellStruct) * cols); | |
152 | for (j = m_NumCols; j < cols; j++) | |
153 | m_CellInfo[i][j].flag = cellFree; | |
154 | } | |
155 | ||
156 | m_ColsInfo = (colStruct*) realloc(m_ColsInfo, sizeof(colStruct) * cols); | |
157 | for (j = m_NumCols; j < cols; j++) { | |
158 | m_ColsInfo[j].width = 0; | |
159 | m_ColsInfo[j].units = HTML_UNITS_PERCENT; | |
160 | } | |
161 | ||
162 | m_NumCols = cols; | |
163 | } | |
164 | ||
165 | ||
166 | ||
167 | void wxHtmlTableCell::ReallocRows(int rows) | |
168 | { | |
169 | m_CellInfo = (cellStruct**) realloc(m_CellInfo, sizeof(cellStruct*) * rows); | |
170 | if (m_NumCols != 0) { | |
171 | int x = rows - 1; | |
af23d90a | 172 | m_CellInfo[x] = (cellStruct*) malloc(sizeof(cellStruct) * m_NumCols); |
5526e819 VS |
173 | for (int i = 0; i < m_NumCols; i++) |
174 | m_CellInfo[x][i].flag = cellFree; | |
175 | } | |
176 | else | |
177 | m_CellInfo[rows - 1] = NULL; | |
178 | m_NumRows = rows; | |
179 | } | |
180 | ||
181 | ||
182 | ||
183 | void wxHtmlTableCell::AddRow(const wxHtmlTag& tag) | |
184 | { | |
185 | if (m_ActualRow + 1 > m_NumRows - 1) | |
186 | ReallocRows(m_ActualRow + 2); | |
187 | m_ActualRow++; | |
188 | m_ActualCol = -1; | |
189 | ||
190 | /* scan params: */ | |
191 | m_rBkg = m_tBkg; | |
192 | if (tag.HasParam("BGCOLOR")) tag.ScanParam("BGCOLOR", "#%lX", &m_rBkg); | |
193 | if (tag.HasParam("VALIGN")) m_rValign = tag.GetParam("VALIGN"); else m_rValign = m_tValign; | |
194 | } | |
195 | ||
196 | ||
197 | ||
198 | void wxHtmlTableCell::AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag) | |
199 | { | |
200 | do { | |
201 | m_ActualCol++; | |
202 | } while ((m_ActualCol < m_NumCols) && (m_CellInfo[m_ActualRow][m_ActualCol].flag != cellFree)); | |
203 | if (m_ActualCol > m_NumCols - 1) | |
204 | ReallocCols(m_ActualCol + 1); | |
205 | ||
206 | int r = m_ActualRow, c = m_ActualCol; | |
207 | ||
208 | m_CellInfo[r][c].cont = cell; | |
209 | m_CellInfo[r][c].colspan = 1; | |
210 | m_CellInfo[r][c].rowspan = 1; | |
211 | m_CellInfo[r][c].flag = cellUsed; | |
212 | m_CellInfo[r][c].minheight = 0; | |
213 | m_CellInfo[r][c].valign = HTML_ALIGN_TOP; | |
214 | ||
215 | /* scan for parameters: */ | |
216 | ||
217 | // width: | |
218 | { | |
219 | if (tag.HasParam("WIDTH")) { | |
220 | wxString wd = tag.GetParam("WIDTH"); | |
221 | ||
222 | if (wd[wd.Length()-1] == '%') { | |
223 | sscanf(wd.c_str(), "%i%%", &m_ColsInfo[c].width); | |
224 | m_ColsInfo[c].units = HTML_UNITS_PERCENT; | |
225 | } | |
226 | else { | |
227 | sscanf(wd.c_str(), "%i", &m_ColsInfo[c].width); | |
228 | m_ColsInfo[c].units = HTML_UNITS_PIXELS; | |
229 | } | |
230 | } | |
231 | } | |
232 | ||
233 | ||
234 | // spanning: | |
235 | { | |
236 | if (tag.HasParam("COLSPAN")) tag.ScanParam("COLSPAN", "%i", &m_CellInfo[r][c].colspan); | |
237 | if (tag.HasParam("ROWSPAN")) tag.ScanParam("ROWSPAN", "%i", &m_CellInfo[r][c].rowspan); | |
238 | if ((m_CellInfo[r][c].colspan != 1) || (m_CellInfo[r][c].rowspan != 1)) { | |
239 | int i, j; | |
240 | ||
241 | if (r + m_CellInfo[r][c].rowspan > m_NumRows) ReallocRows(r + m_CellInfo[r][c].rowspan); | |
242 | if (c + m_CellInfo[r][c].colspan > m_NumCols) ReallocCols(c + m_CellInfo[r][c].colspan); | |
243 | for (i = r; i < r + m_CellInfo[r][c].rowspan; i++) | |
244 | for (j = c; j < c + m_CellInfo[r][c].colspan; j++) | |
245 | m_CellInfo[i][j].flag = cellSpan; | |
246 | m_CellInfo[r][c].flag = cellUsed; | |
247 | } | |
248 | } | |
249 | ||
250 | //background color: | |
251 | { | |
252 | int bk = m_rBkg; | |
253 | if (tag.HasParam("BGCOLOR")) tag.ScanParam("BGCOLOR", "#%lX", &bk); | |
254 | if (bk != -1) { | |
255 | wxColour clr = wxColour((bk & 0xFF0000) >> 16 , (bk & 0x00FF00) >> 8, (bk & 0x0000FF)); | |
256 | cell -> SetBackgroundColour(clr); | |
257 | } | |
258 | } | |
259 | if (m_HasBorders) | |
260 | cell -> SetBorder(TABLE_BORDER_CLR_2, TABLE_BORDER_CLR_1); | |
261 | ||
262 | // vertical alignment: | |
263 | { | |
264 | wxString valign; | |
265 | if (tag.HasParam("VALIGN")) valign = tag.GetParam("VALIGN"); else valign = m_tValign; | |
266 | valign.MakeUpper(); | |
267 | if (valign == "TOP") m_CellInfo[r][c].valign = HTML_ALIGN_TOP; | |
268 | else if (valign == "BOTTOM") m_CellInfo[r][c].valign = HTML_ALIGN_BOTTOM; | |
269 | else m_CellInfo[r][c].valign = HTML_ALIGN_CENTER; | |
270 | } | |
271 | ||
272 | cell -> SetIndent(m_Padding, HTML_INDENT_ALL, HTML_UNITS_PIXELS); | |
273 | } | |
274 | ||
275 | ||
276 | ||
277 | ||
278 | ||
279 | void wxHtmlTableCell::Layout(int w) | |
280 | { | |
281 | /* | |
282 | ||
283 | WIDTH ADJUSTING : | |
284 | ||
285 | */ | |
286 | ||
287 | if (m_WidthFloatUnits == HTML_UNITS_PERCENT) { | |
288 | if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100; | |
289 | else m_Width = m_WidthFloat * w / 100; | |
290 | } | |
291 | else { | |
292 | if (m_WidthFloat < 0) m_Width = w + m_WidthFloat; | |
293 | else m_Width = m_WidthFloat; | |
294 | } | |
295 | ||
296 | ||
297 | /* | |
298 | ||
299 | LAYOUTING : | |
300 | ||
301 | */ | |
302 | ||
303 | /* 1. setup columns widths: */ | |
304 | { | |
305 | int wpix = m_Width - (m_NumCols + 1) * m_Spacing; | |
306 | int i, j; | |
307 | int wtemp = 0; | |
308 | ||
309 | // 1a. setup fixed-width columns: | |
310 | for (i = 0; i < m_NumCols; i++) | |
311 | if (m_ColsInfo[i].units == HTML_UNITS_PIXELS) | |
312 | wpix -= (m_ColsInfo[i].pixwidth = m_ColsInfo[i].width); | |
313 | ||
314 | // 1b. setup floating-width columns: | |
315 | for (i = 0; i < m_NumCols; i++) | |
316 | if ((m_ColsInfo[i].units == HTML_UNITS_PERCENT) && (m_ColsInfo[i].width != 0)) | |
317 | wtemp += (m_ColsInfo[i].pixwidth = m_ColsInfo[i].width * wpix / 100); | |
318 | wpix -= wtemp; | |
319 | ||
320 | // 1c. setup defalut columns (no width specification supplied): | |
321 | // NOTE! This algorithm doesn't conform to HTML standard : it assigns equal widths | |
322 | // instead of optimal | |
323 | for (i = j = 0; i < m_NumCols; i++) | |
324 | if (m_ColsInfo[i].width == 0) j++; | |
325 | for (i = 0; i < m_NumCols; i++) | |
326 | if (m_ColsInfo[i].width == 0) | |
327 | m_ColsInfo[i].pixwidth = wpix / j; | |
328 | } | |
329 | ||
330 | /* 2. compute positions of columns: */ | |
331 | { | |
332 | int wpos = m_Spacing; | |
333 | for (int i = 0; i < m_NumCols; i++) { | |
334 | m_ColsInfo[i].leftpos = wpos; | |
335 | wpos += m_ColsInfo[i].pixwidth + m_Spacing; | |
336 | } | |
337 | } | |
338 | ||
339 | /* 3. sub-layout all cells: */ | |
340 | { | |
2776d7c3 | 341 | int *ypos = new int[m_NumRows + 1]; |
5526e819 VS |
342 | |
343 | int actcol, actrow; | |
344 | int fullwid; | |
345 | wxHtmlContainerCell *actcell; | |
346 | ||
347 | for (actrow = 0; actrow <= m_NumRows; actrow++) ypos[actrow] = m_Spacing; | |
348 | ||
349 | for (actrow = 0; actrow < m_NumRows; actrow++) { | |
350 | ||
351 | // 3a. sub-layout and detect max height: | |
352 | ||
353 | for (actcol = 0; actcol < m_NumCols; actcol++) { | |
354 | if (m_CellInfo[actrow][actcol].flag != cellUsed) continue; | |
355 | actcell = m_CellInfo[actrow][actcol].cont; | |
356 | fullwid = 0; | |
357 | for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++) | |
358 | fullwid += m_ColsInfo[i].pixwidth; | |
359 | actcell -> SetMinHeight(m_CellInfo[actrow][actcol].minheight, m_CellInfo[actrow][actcol].valign); | |
360 | actcell -> Layout(fullwid); | |
361 | ||
362 | if (ypos[actrow] + actcell -> GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing > ypos[actrow + m_CellInfo[actrow][actcol].rowspan]) | |
363 | ypos[actrow + m_CellInfo[actrow][actcol].rowspan] = | |
364 | ypos[actrow] + actcell -> GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing; | |
365 | } | |
366 | } | |
367 | ||
368 | ||
369 | for (actrow = 0; actrow < m_NumRows; actrow++) { | |
370 | ||
371 | // 3b. place cells in row & let'em all have same height: | |
372 | ||
373 | for (actcol = 0; actcol < m_NumCols; actcol++) { | |
374 | if (m_CellInfo[actrow][actcol].flag != cellUsed) continue; | |
375 | actcell = m_CellInfo[actrow][actcol].cont; | |
376 | actcell -> SetMinHeight( | |
377 | ypos[actrow + m_CellInfo[actrow][actcol].rowspan] - ypos[actrow] - m_CellInfo[actrow][actcol].rowspan * m_Spacing, | |
378 | m_CellInfo[actrow][actcol].valign); | |
379 | fullwid = 0; | |
380 | for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++) | |
381 | fullwid += m_ColsInfo[i].pixwidth; | |
382 | actcell -> Layout(fullwid); | |
383 | actcell -> SetPos(m_ColsInfo[actcol].leftpos, ypos[actrow]); | |
384 | } | |
385 | ||
386 | } | |
387 | m_Height = ypos[m_NumRows]; | |
2776d7c3 | 388 | delete[] ypos; |
5526e819 VS |
389 | } |
390 | } | |
391 | ||
392 | ||
393 | ||
394 | ||
395 | ||
396 | ||
397 | //----------------------------------------------------------------------------- | |
398 | // The tables handler: | |
399 | //----------------------------------------------------------------------------- | |
400 | ||
401 | ||
402 | TAG_HANDLER_BEGIN(TABLE, "TABLE,TR,TD,TH") | |
403 | ||
404 | TAG_HANDLER_VARS | |
405 | wxHtmlTableCell* m_Table; | |
406 | wxString m_tAlign, m_rAlign; | |
407 | int m_OldAlign; | |
408 | ||
409 | TAG_HANDLER_CONSTR(TABLE) | |
410 | { | |
411 | m_Table = NULL; | |
412 | m_tAlign = m_rAlign = wxEmptyString; | |
413 | m_OldAlign = HTML_ALIGN_LEFT; | |
414 | } | |
415 | ||
416 | ||
417 | TAG_HANDLER_PROC(tag) | |
418 | { | |
419 | wxHtmlContainerCell *c; | |
420 | ||
421 | // new table started, backup upper-level table (if any) and create new: | |
422 | if (tag.GetName() == "TABLE") { | |
423 | wxHtmlTableCell *oldt = m_Table; | |
424 | wxHtmlContainerCell *oldcont; | |
425 | int m_OldAlign; | |
426 | ||
427 | oldcont = c = m_WParser -> OpenContainer(); | |
428 | ||
429 | c -> SetWidthFloat(tag); | |
430 | m_Table = new wxHtmlTableCell(c, tag); | |
431 | m_OldAlign = m_WParser -> GetAlign(); | |
432 | m_tAlign = wxEmptyString; | |
433 | if (tag.HasParam("ALIGN")) m_tAlign = tag.GetParam("ALIGN"); | |
434 | ||
435 | ParseInner(tag); | |
436 | ||
437 | m_WParser -> SetAlign(m_OldAlign); | |
438 | m_WParser -> SetContainer(oldcont); | |
439 | m_WParser -> CloseContainer(); | |
440 | m_Table = oldt; | |
441 | return TRUE; | |
442 | } | |
443 | ||
444 | ||
445 | else if (m_Table && !tag.IsEnding()) { | |
446 | // new row in table | |
447 | if (tag.GetName() == "TR") { | |
448 | m_Table -> AddRow(tag); | |
449 | m_rAlign = m_tAlign; | |
450 | if (tag.HasParam("ALIGN")) m_rAlign = tag.GetParam("ALIGN"); | |
451 | } | |
452 | ||
453 | // new cell | |
454 | else { | |
455 | m_WParser -> SetAlign(m_OldAlign); | |
456 | c = m_WParser -> SetContainer(new wxHtmlContainerCell(m_Table)); | |
457 | m_Table -> AddCell(c, tag); | |
458 | ||
459 | m_WParser -> OpenContainer(); | |
460 | ||
461 | if (tag.GetName() == "TH") /*header style*/ { | |
462 | m_WParser -> SetAlign(HTML_ALIGN_CENTER); | |
463 | } | |
464 | ||
465 | { | |
466 | wxString als; | |
467 | ||
468 | als = m_rAlign; | |
469 | if (tag.HasParam("ALIGN")) als = tag.GetParam("ALIGN"); | |
470 | als.MakeUpper(); | |
471 | if (als == "RIGHT") m_WParser -> SetAlign(HTML_ALIGN_RIGHT); | |
472 | else if (als == "CENTER") m_WParser -> SetAlign(HTML_ALIGN_CENTER); | |
473 | } | |
474 | m_WParser -> OpenContainer(); | |
475 | } | |
476 | } | |
477 | return FALSE; | |
478 | } | |
479 | ||
480 | TAG_HANDLER_END(TABLE) | |
481 | ||
482 | ||
483 | ||
484 | ||
485 | ||
486 | TAGS_MODULE_BEGIN(Tables) | |
487 | ||
488 | TAGS_MODULE_ADD(TABLE) | |
489 | ||
490 | TAGS_MODULE_END(Tables) | |
491 | ||
492 | ||
493 | #endif |