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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 | ||
314260fb | 16 | #include "wx/defs.h" |
5526e819 | 17 | #if wxUSE_HTML |
3364ab79 RS |
18 | #ifdef __BORDLANDC__ |
19 | #pragma hdrstop | |
20 | #endif | |
21 | ||
22 | #ifndef WXPRECOMP | |
23 | #include <wx/wx.h> | |
24 | #endif | |
25 | ||
5526e819 VS |
26 | |
27 | /* | |
28 | REMARKS: | |
29 | 1. This version of mod_tables doesn't support auto-layout algorithm. | |
30 | This means that all columns are of same width unless explicitly specified. | |
31 | */ | |
32 | ||
33 | ||
69941f05 VS |
34 | #include "wx/html/forcelnk.h" |
35 | #include "wx/html/m_templ.h" | |
5526e819 | 36 | |
69941f05 | 37 | #include "wx/html/htmlcell.h" |
5526e819 VS |
38 | |
39 | FORCE_LINK_ME(mod_tables) | |
40 | ||
41 | ||
42 | #define TABLE_BORDER_CLR_1 wxColour(0xC5, 0xC2, 0xC5) | |
43 | #define TABLE_BORDER_CLR_2 wxColour(0x62, 0x61, 0x62) | |
44 | ||
45 | ||
46 | //----------------------------------------------------------------------------- | |
47 | // wxHtmlTableCell | |
48 | //----------------------------------------------------------------------------- | |
49 | ||
50 | ||
51 | typedef struct { | |
52 | int width, units; // universal | |
53 | int leftpos, pixwidth, maxrealwidth; // temporary (depends on width of table) | |
54 | } colStruct; | |
55 | ||
56 | typedef enum { | |
57 | cellSpan, | |
58 | cellUsed, | |
59 | cellFree | |
60 | } cellState; | |
61 | ||
62 | typedef struct { | |
63 | wxHtmlContainerCell *cont; | |
64 | int colspan, rowspan; | |
65 | int minheight, valign; | |
66 | cellState flag; | |
67 | } cellStruct; | |
68 | ||
69 | ||
70 | class wxHtmlTableCell : public wxHtmlContainerCell | |
71 | { | |
72 | protected: | |
73 | /* These are real attributes: */ | |
74 | bool m_HasBorders; | |
75 | // should we draw borders or not? | |
76 | int m_NumCols, m_NumRows; | |
77 | // number of columns; rows | |
78 | colStruct *m_ColsInfo; | |
79 | // array of column information | |
80 | cellStruct **m_CellInfo; | |
81 | // 2D array of all cells in the table : m_CellInfo[row][column] | |
82 | int m_Spacing; | |
83 | // spaces between cells | |
84 | int m_Padding; | |
85 | // cells internal indentation | |
86 | ||
87 | private: | |
88 | /* ...and these are valid only during parsing of table: */ | |
89 | int m_ActualCol, m_ActualRow; | |
90 | // number of actual column (ranging from 0..m_NumCols) | |
91 | ||
92 | // default values (for table and row): | |
93 | int m_tBkg, m_rBkg; | |
94 | wxString m_tValign, m_rValign; | |
95 | ||
96 | ||
97 | public: | |
98 | wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag); | |
99 | ~wxHtmlTableCell(); | |
100 | virtual void Layout(int w); | |
101 | ||
102 | void AddRow(const wxHtmlTag& tag); | |
103 | void AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag); | |
104 | private: | |
105 | void ReallocCols(int cols); | |
106 | void ReallocRows(int rows); | |
107 | // reallocates memory to given number of cols/rows | |
108 | // and changes m_NumCols/m_NumRows value to reflect this change | |
109 | // NOTE! You CAN'T change m_NumCols/m_NumRows before calling this!! | |
110 | }; | |
111 | ||
112 | ||
113 | ||
114 | wxHtmlTableCell::wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag) | |
115 | : wxHtmlContainerCell(parent) | |
116 | { | |
2136a764 | 117 | m_HasBorders = (tag.HasParam("BORDER") && tag.GetParam("BORDER") != "0"); |
5526e819 VS |
118 | m_ColsInfo = NULL; |
119 | m_NumCols = m_NumRows = 0; | |
120 | m_CellInfo = NULL; | |
121 | m_ActualCol = m_ActualRow = -1; | |
122 | ||
123 | /* scan params: */ | |
124 | m_tBkg = m_rBkg = -1; | |
66a77a74 OK |
125 | if (tag.HasParam(wxT("BGCOLOR"))) tag.ScanParam(wxT("BGCOLOR"), wxT("#%lX"), &m_tBkg); |
126 | if (tag.HasParam(wxT("VALIGN"))) m_tValign = tag.GetParam(wxT("VALIGN")); else m_tValign = wxEmptyString; | |
127 | if (tag.HasParam(wxT("CELLSPACING")) && tag.ScanParam(wxT("CELLSPACING"), wxT("%i"), &m_Spacing) == 1) {} else m_Spacing = 2; | |
128 | if (tag.HasParam(wxT("CELLPADDING")) && tag.ScanParam(wxT("CELLPADDING"), wxT("%i"), &m_Padding) == 1) {} else m_Padding = 3; | |
5526e819 VS |
129 | |
130 | if (m_HasBorders) | |
131 | SetBorder(TABLE_BORDER_CLR_1, TABLE_BORDER_CLR_2); | |
132 | } | |
133 | ||
134 | ||
135 | ||
136 | wxHtmlTableCell::~wxHtmlTableCell() | |
137 | { | |
138 | if (m_ColsInfo) free(m_ColsInfo); | |
139 | if (m_CellInfo) { | |
140 | for (int i = 0; i < m_NumRows; i++) | |
141 | free(m_CellInfo[i]); | |
142 | free(m_CellInfo); | |
143 | } | |
144 | } | |
145 | ||
146 | ||
147 | ||
148 | void wxHtmlTableCell::ReallocCols(int cols) | |
149 | { | |
150 | int i,j; | |
151 | ||
152 | for (i = 0; i < m_NumRows; i++) { | |
153 | m_CellInfo[i] = (cellStruct*) realloc(m_CellInfo[i], sizeof(cellStruct) * cols); | |
154 | for (j = m_NumCols; j < cols; j++) | |
155 | m_CellInfo[i][j].flag = cellFree; | |
156 | } | |
157 | ||
158 | m_ColsInfo = (colStruct*) realloc(m_ColsInfo, sizeof(colStruct) * cols); | |
159 | for (j = m_NumCols; j < cols; j++) { | |
160 | m_ColsInfo[j].width = 0; | |
efba2b89 | 161 | m_ColsInfo[j].units = wxHTML_UNITS_PERCENT; |
5526e819 VS |
162 | } |
163 | ||
164 | m_NumCols = cols; | |
165 | } | |
166 | ||
167 | ||
168 | ||
169 | void wxHtmlTableCell::ReallocRows(int rows) | |
170 | { | |
171 | m_CellInfo = (cellStruct**) realloc(m_CellInfo, sizeof(cellStruct*) * rows); | |
172 | if (m_NumCols != 0) { | |
173 | int x = rows - 1; | |
af23d90a | 174 | m_CellInfo[x] = (cellStruct*) malloc(sizeof(cellStruct) * m_NumCols); |
5526e819 VS |
175 | for (int i = 0; i < m_NumCols; i++) |
176 | m_CellInfo[x][i].flag = cellFree; | |
177 | } | |
178 | else | |
179 | m_CellInfo[rows - 1] = NULL; | |
180 | m_NumRows = rows; | |
181 | } | |
182 | ||
183 | ||
184 | ||
185 | void wxHtmlTableCell::AddRow(const wxHtmlTag& tag) | |
186 | { | |
187 | if (m_ActualRow + 1 > m_NumRows - 1) | |
188 | ReallocRows(m_ActualRow + 2); | |
189 | m_ActualRow++; | |
190 | m_ActualCol = -1; | |
191 | ||
192 | /* scan params: */ | |
193 | m_rBkg = m_tBkg; | |
66a77a74 OK |
194 | if (tag.HasParam(wxT("BGCOLOR"))) tag.ScanParam(wxT("BGCOLOR"), wxT("#%lX"), &m_rBkg); |
195 | if (tag.HasParam(wxT("VALIGN"))) m_rValign = tag.GetParam(wxT("VALIGN")); else m_rValign = m_tValign; | |
5526e819 VS |
196 | } |
197 | ||
198 | ||
199 | ||
200 | void wxHtmlTableCell::AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag) | |
201 | { | |
202 | do { | |
203 | m_ActualCol++; | |
204 | } while ((m_ActualCol < m_NumCols) && (m_CellInfo[m_ActualRow][m_ActualCol].flag != cellFree)); | |
205 | if (m_ActualCol > m_NumCols - 1) | |
206 | ReallocCols(m_ActualCol + 1); | |
207 | ||
208 | int r = m_ActualRow, c = m_ActualCol; | |
209 | ||
210 | m_CellInfo[r][c].cont = cell; | |
211 | m_CellInfo[r][c].colspan = 1; | |
212 | m_CellInfo[r][c].rowspan = 1; | |
213 | m_CellInfo[r][c].flag = cellUsed; | |
214 | m_CellInfo[r][c].minheight = 0; | |
efba2b89 | 215 | m_CellInfo[r][c].valign = wxHTML_ALIGN_TOP; |
5526e819 VS |
216 | |
217 | /* scan for parameters: */ | |
218 | ||
219 | // width: | |
220 | { | |
221 | if (tag.HasParam("WIDTH")) { | |
222 | wxString wd = tag.GetParam("WIDTH"); | |
223 | ||
224 | if (wd[wd.Length()-1] == '%') { | |
66a77a74 | 225 | wxSscanf(wd.c_str(), wxT("%i%%"), &m_ColsInfo[c].width); |
efba2b89 | 226 | m_ColsInfo[c].units = wxHTML_UNITS_PERCENT; |
5526e819 VS |
227 | } |
228 | else { | |
66a77a74 | 229 | wxSscanf(wd.c_str(), wxT("%i"), &m_ColsInfo[c].width); |
efba2b89 | 230 | m_ColsInfo[c].units = wxHTML_UNITS_PIXELS; |
5526e819 VS |
231 | } |
232 | } | |
233 | } | |
234 | ||
235 | ||
236 | // spanning: | |
237 | { | |
66a77a74 OK |
238 | if (tag.HasParam(wxT("COLSPAN"))) tag.ScanParam(wxT("COLSPAN"), wxT("%i"), &m_CellInfo[r][c].colspan); |
239 | if (tag.HasParam(wxT("ROWSPAN"))) tag.ScanParam(wxT("ROWSPAN"), wxT("%i"), &m_CellInfo[r][c].rowspan); | |
5526e819 VS |
240 | if ((m_CellInfo[r][c].colspan != 1) || (m_CellInfo[r][c].rowspan != 1)) { |
241 | int i, j; | |
242 | ||
243 | if (r + m_CellInfo[r][c].rowspan > m_NumRows) ReallocRows(r + m_CellInfo[r][c].rowspan); | |
244 | if (c + m_CellInfo[r][c].colspan > m_NumCols) ReallocCols(c + m_CellInfo[r][c].colspan); | |
245 | for (i = r; i < r + m_CellInfo[r][c].rowspan; i++) | |
246 | for (j = c; j < c + m_CellInfo[r][c].colspan; j++) | |
247 | m_CellInfo[i][j].flag = cellSpan; | |
248 | m_CellInfo[r][c].flag = cellUsed; | |
249 | } | |
250 | } | |
251 | ||
252 | //background color: | |
253 | { | |
254 | int bk = m_rBkg; | |
66a77a74 | 255 | if (tag.HasParam(wxT("BGCOLOR"))) tag.ScanParam(wxT("BGCOLOR"), wxT("#%lX"), &bk); |
5526e819 VS |
256 | if (bk != -1) { |
257 | wxColour clr = wxColour((bk & 0xFF0000) >> 16 , (bk & 0x00FF00) >> 8, (bk & 0x0000FF)); | |
258 | cell -> SetBackgroundColour(clr); | |
259 | } | |
260 | } | |
261 | if (m_HasBorders) | |
262 | cell -> SetBorder(TABLE_BORDER_CLR_2, TABLE_BORDER_CLR_1); | |
263 | ||
264 | // vertical alignment: | |
265 | { | |
266 | wxString valign; | |
267 | if (tag.HasParam("VALIGN")) valign = tag.GetParam("VALIGN"); else valign = m_tValign; | |
268 | valign.MakeUpper(); | |
efba2b89 VS |
269 | if (valign == "TOP") m_CellInfo[r][c].valign = wxHTML_ALIGN_TOP; |
270 | else if (valign == "BOTTOM") m_CellInfo[r][c].valign = wxHTML_ALIGN_BOTTOM; | |
271 | else m_CellInfo[r][c].valign = wxHTML_ALIGN_CENTER; | |
5526e819 VS |
272 | } |
273 | ||
efba2b89 | 274 | cell -> SetIndent(m_Padding, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS); |
5526e819 VS |
275 | } |
276 | ||
277 | ||
278 | ||
279 | ||
280 | ||
281 | void wxHtmlTableCell::Layout(int w) | |
282 | { | |
283 | /* | |
284 | ||
285 | WIDTH ADJUSTING : | |
286 | ||
287 | */ | |
288 | ||
efba2b89 | 289 | if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT) { |
5526e819 VS |
290 | if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100; |
291 | else m_Width = m_WidthFloat * w / 100; | |
292 | } | |
293 | else { | |
294 | if (m_WidthFloat < 0) m_Width = w + m_WidthFloat; | |
295 | else m_Width = m_WidthFloat; | |
296 | } | |
297 | ||
298 | ||
299 | /* | |
300 | ||
301 | LAYOUTING : | |
302 | ||
303 | */ | |
304 | ||
305 | /* 1. setup columns widths: */ | |
306 | { | |
307 | int wpix = m_Width - (m_NumCols + 1) * m_Spacing; | |
308 | int i, j; | |
309 | int wtemp = 0; | |
310 | ||
311 | // 1a. setup fixed-width columns: | |
312 | for (i = 0; i < m_NumCols; i++) | |
efba2b89 | 313 | if (m_ColsInfo[i].units == wxHTML_UNITS_PIXELS) |
5526e819 VS |
314 | wpix -= (m_ColsInfo[i].pixwidth = m_ColsInfo[i].width); |
315 | ||
316 | // 1b. setup floating-width columns: | |
317 | for (i = 0; i < m_NumCols; i++) | |
efba2b89 | 318 | if ((m_ColsInfo[i].units == wxHTML_UNITS_PERCENT) && (m_ColsInfo[i].width != 0)) |
5526e819 VS |
319 | wtemp += (m_ColsInfo[i].pixwidth = m_ColsInfo[i].width * wpix / 100); |
320 | wpix -= wtemp; | |
321 | ||
322 | // 1c. setup defalut columns (no width specification supplied): | |
323 | // NOTE! This algorithm doesn't conform to HTML standard : it assigns equal widths | |
324 | // instead of optimal | |
325 | for (i = j = 0; i < m_NumCols; i++) | |
326 | if (m_ColsInfo[i].width == 0) j++; | |
327 | for (i = 0; i < m_NumCols; i++) | |
328 | if (m_ColsInfo[i].width == 0) | |
329 | m_ColsInfo[i].pixwidth = wpix / j; | |
330 | } | |
331 | ||
332 | /* 2. compute positions of columns: */ | |
333 | { | |
334 | int wpos = m_Spacing; | |
335 | for (int i = 0; i < m_NumCols; i++) { | |
336 | m_ColsInfo[i].leftpos = wpos; | |
337 | wpos += m_ColsInfo[i].pixwidth + m_Spacing; | |
338 | } | |
339 | } | |
340 | ||
341 | /* 3. sub-layout all cells: */ | |
342 | { | |
2776d7c3 | 343 | int *ypos = new int[m_NumRows + 1]; |
5526e819 VS |
344 | |
345 | int actcol, actrow; | |
346 | int fullwid; | |
347 | wxHtmlContainerCell *actcell; | |
348 | ||
349 | for (actrow = 0; actrow <= m_NumRows; actrow++) ypos[actrow] = m_Spacing; | |
350 | ||
351 | for (actrow = 0; actrow < m_NumRows; actrow++) { | |
352 | ||
353 | // 3a. sub-layout and detect max height: | |
354 | ||
355 | for (actcol = 0; actcol < m_NumCols; actcol++) { | |
356 | if (m_CellInfo[actrow][actcol].flag != cellUsed) continue; | |
357 | actcell = m_CellInfo[actrow][actcol].cont; | |
358 | fullwid = 0; | |
359 | for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++) | |
360 | fullwid += m_ColsInfo[i].pixwidth; | |
361 | actcell -> SetMinHeight(m_CellInfo[actrow][actcol].minheight, m_CellInfo[actrow][actcol].valign); | |
362 | actcell -> Layout(fullwid); | |
363 | ||
364 | if (ypos[actrow] + actcell -> GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing > ypos[actrow + m_CellInfo[actrow][actcol].rowspan]) | |
365 | ypos[actrow + m_CellInfo[actrow][actcol].rowspan] = | |
366 | ypos[actrow] + actcell -> GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing; | |
367 | } | |
368 | } | |
369 | ||
370 | ||
371 | for (actrow = 0; actrow < m_NumRows; actrow++) { | |
372 | ||
373 | // 3b. place cells in row & let'em all have same height: | |
374 | ||
375 | for (actcol = 0; actcol < m_NumCols; actcol++) { | |
376 | if (m_CellInfo[actrow][actcol].flag != cellUsed) continue; | |
377 | actcell = m_CellInfo[actrow][actcol].cont; | |
378 | actcell -> SetMinHeight( | |
379 | ypos[actrow + m_CellInfo[actrow][actcol].rowspan] - ypos[actrow] - m_CellInfo[actrow][actcol].rowspan * m_Spacing, | |
380 | m_CellInfo[actrow][actcol].valign); | |
381 | fullwid = 0; | |
382 | for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++) | |
383 | fullwid += m_ColsInfo[i].pixwidth; | |
384 | actcell -> Layout(fullwid); | |
385 | actcell -> SetPos(m_ColsInfo[actcol].leftpos, ypos[actrow]); | |
386 | } | |
387 | ||
388 | } | |
389 | m_Height = ypos[m_NumRows]; | |
2776d7c3 | 390 | delete[] ypos; |
5526e819 VS |
391 | } |
392 | } | |
393 | ||
394 | ||
395 | ||
396 | ||
397 | ||
398 | ||
399 | //----------------------------------------------------------------------------- | |
400 | // The tables handler: | |
401 | //----------------------------------------------------------------------------- | |
402 | ||
403 | ||
404 | TAG_HANDLER_BEGIN(TABLE, "TABLE,TR,TD,TH") | |
405 | ||
406 | TAG_HANDLER_VARS | |
407 | wxHtmlTableCell* m_Table; | |
408 | wxString m_tAlign, m_rAlign; | |
409 | int m_OldAlign; | |
410 | ||
411 | TAG_HANDLER_CONSTR(TABLE) | |
412 | { | |
413 | m_Table = NULL; | |
414 | m_tAlign = m_rAlign = wxEmptyString; | |
efba2b89 | 415 | m_OldAlign = wxHTML_ALIGN_LEFT; |
5526e819 VS |
416 | } |
417 | ||
418 | ||
419 | TAG_HANDLER_PROC(tag) | |
420 | { | |
421 | wxHtmlContainerCell *c; | |
422 | ||
423 | // new table started, backup upper-level table (if any) and create new: | |
424 | if (tag.GetName() == "TABLE") { | |
425 | wxHtmlTableCell *oldt = m_Table; | |
426 | wxHtmlContainerCell *oldcont; | |
427 | int m_OldAlign; | |
428 | ||
429 | oldcont = c = m_WParser -> OpenContainer(); | |
430 | ||
431 | c -> SetWidthFloat(tag); | |
432 | m_Table = new wxHtmlTableCell(c, tag); | |
433 | m_OldAlign = m_WParser -> GetAlign(); | |
434 | m_tAlign = wxEmptyString; | |
435 | if (tag.HasParam("ALIGN")) m_tAlign = tag.GetParam("ALIGN"); | |
436 | ||
437 | ParseInner(tag); | |
438 | ||
439 | m_WParser -> SetAlign(m_OldAlign); | |
440 | m_WParser -> SetContainer(oldcont); | |
441 | m_WParser -> CloseContainer(); | |
442 | m_Table = oldt; | |
443 | return TRUE; | |
444 | } | |
445 | ||
446 | ||
447 | else if (m_Table && !tag.IsEnding()) { | |
448 | // new row in table | |
449 | if (tag.GetName() == "TR") { | |
450 | m_Table -> AddRow(tag); | |
451 | m_rAlign = m_tAlign; | |
452 | if (tag.HasParam("ALIGN")) m_rAlign = tag.GetParam("ALIGN"); | |
453 | } | |
454 | ||
455 | // new cell | |
456 | else { | |
457 | m_WParser -> SetAlign(m_OldAlign); | |
458 | c = m_WParser -> SetContainer(new wxHtmlContainerCell(m_Table)); | |
459 | m_Table -> AddCell(c, tag); | |
460 | ||
461 | m_WParser -> OpenContainer(); | |
462 | ||
463 | if (tag.GetName() == "TH") /*header style*/ { | |
efba2b89 | 464 | m_WParser -> SetAlign(wxHTML_ALIGN_CENTER); |
5526e819 VS |
465 | } |
466 | ||
467 | { | |
468 | wxString als; | |
469 | ||
470 | als = m_rAlign; | |
471 | if (tag.HasParam("ALIGN")) als = tag.GetParam("ALIGN"); | |
472 | als.MakeUpper(); | |
efba2b89 VS |
473 | if (als == "RIGHT") m_WParser -> SetAlign(wxHTML_ALIGN_RIGHT); |
474 | else if (als == "CENTER") m_WParser -> SetAlign(wxHTML_ALIGN_CENTER); | |
5526e819 VS |
475 | } |
476 | m_WParser -> OpenContainer(); | |
477 | } | |
478 | } | |
479 | return FALSE; | |
480 | } | |
481 | ||
482 | TAG_HANDLER_END(TABLE) | |
483 | ||
484 | ||
485 | ||
486 | ||
487 | ||
488 | TAGS_MODULE_BEGIN(Tables) | |
489 | ||
490 | TAGS_MODULE_ADD(TABLE) | |
491 | ||
492 | TAGS_MODULE_END(Tables) | |
493 | ||
494 | ||
495 | #endif |