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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/motif/font.cpp | |
3 | // Purpose: wxFont class | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 17/09/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ============================================================================ | |
13 | // declarations | |
14 | // ============================================================================ | |
15 | ||
16 | // ---------------------------------------------------------------------------- | |
17 | // headers | |
18 | // ---------------------------------------------------------------------------- | |
19 | ||
20 | #ifdef __GNUG__ | |
21 | #pragma implementation "font.h" | |
22 | #endif | |
23 | ||
24 | #include "wx/defs.h" | |
25 | ||
26 | #ifdef __VMS | |
27 | #pragma message disable nosimpint | |
28 | #include "wx/vms_x_fix.h" | |
29 | #endif | |
30 | #include <Xm/Xm.h> | |
31 | #ifdef __VMS | |
32 | #pragma message enable nosimpint | |
33 | #endif | |
34 | ||
35 | #include "wx/string.h" | |
36 | #include "wx/font.h" | |
37 | #include "wx/gdicmn.h" | |
38 | #include "wx/utils.h" // for wxGetDisplay() | |
39 | #include "wx/fontutil.h" // for wxNativeFontInfo | |
40 | #include "wx/tokenzr.h" | |
41 | #include "wx/settings.h" | |
42 | ||
43 | IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject) | |
44 | ||
45 | // ---------------------------------------------------------------------------- | |
46 | // private classes | |
47 | // ---------------------------------------------------------------------------- | |
48 | ||
49 | // For every wxFont, there must be a font for each display and scale requested. | |
50 | // So these objects are stored in wxFontRefData::m_fonts | |
51 | class wxXFont : public wxObject | |
52 | { | |
53 | public: | |
54 | wxXFont(); | |
55 | ~wxXFont(); | |
56 | ||
57 | WXFontStructPtr m_fontStruct; // XFontStruct | |
58 | WXFontList m_fontList; // Motif XmFontList | |
59 | WXDisplay* m_display; // XDisplay | |
60 | int m_scale; // Scale * 100 | |
61 | }; | |
62 | ||
63 | class wxFontRefData: public wxGDIRefData | |
64 | { | |
65 | friend class wxFont; | |
66 | ||
67 | public: | |
68 | wxFontRefData(int size = wxDEFAULT, | |
69 | int family = wxDEFAULT, | |
70 | int style = wxDEFAULT, | |
71 | int weight = wxDEFAULT, | |
72 | bool underlined = FALSE, | |
73 | const wxString& faceName = wxEmptyString, | |
74 | wxFontEncoding encoding = wxFONTENCODING_DEFAULT) | |
75 | { | |
76 | Init(size, family, style, weight, underlined, faceName, encoding); | |
77 | } | |
78 | ||
79 | wxFontRefData(const wxFontRefData& data) | |
80 | { | |
81 | Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight, | |
82 | data.m_underlined, data.m_faceName, data.m_encoding); | |
83 | } | |
84 | ||
85 | ~wxFontRefData(); | |
86 | ||
87 | protected: | |
88 | // common part of all ctors | |
89 | void Init(int size, | |
90 | int family, | |
91 | int style, | |
92 | int weight, | |
93 | bool underlined, | |
94 | const wxString& faceName, | |
95 | wxFontEncoding encoding); | |
96 | ||
97 | // font attributes | |
98 | int m_pointSize; | |
99 | int m_family; | |
100 | int m_style; | |
101 | int m_weight; | |
102 | bool m_underlined; | |
103 | wxString m_faceName; | |
104 | wxFontEncoding m_encoding; | |
105 | ||
106 | wxNativeFontInfo m_nativeFontInfo; | |
107 | ||
108 | // A list of wxXFonts | |
109 | wxList m_fonts; | |
110 | }; | |
111 | ||
112 | // ============================================================================ | |
113 | // implementation | |
114 | // ============================================================================ | |
115 | ||
116 | // ---------------------------------------------------------------------------- | |
117 | // wxXFont | |
118 | // ---------------------------------------------------------------------------- | |
119 | ||
120 | wxXFont::wxXFont() | |
121 | { | |
122 | m_fontStruct = (WXFontStructPtr) 0; | |
123 | m_fontList = (WXFontList) 0; | |
124 | m_display = (WXDisplay*) 0; | |
125 | m_scale = 100; | |
126 | } | |
127 | ||
128 | wxXFont::~wxXFont() | |
129 | { | |
130 | XmFontList fontList = (XmFontList) m_fontList; | |
131 | ||
132 | XmFontListFree (fontList); | |
133 | ||
134 | // TODO: why does freeing the font produce a segv??? | |
135 | // Note that XFreeFont wasn't called in wxWin 1.68 either. | |
136 | // XFontStruct* fontStruct = (XFontStruct*) m_fontStruct; | |
137 | // XFreeFont((Display*) m_display, fontStruct); | |
138 | } | |
139 | ||
140 | // ---------------------------------------------------------------------------- | |
141 | // wxFontRefData | |
142 | // ---------------------------------------------------------------------------- | |
143 | ||
144 | void wxFontRefData::Init(int pointSize, | |
145 | int family, | |
146 | int style, | |
147 | int weight, | |
148 | bool underlined, | |
149 | const wxString& faceName, | |
150 | wxFontEncoding encoding) | |
151 | { | |
152 | if (family == wxDEFAULT) | |
153 | m_family = wxSWISS; | |
154 | else | |
155 | m_family = family; | |
156 | ||
157 | m_faceName = faceName; | |
158 | ||
159 | if (style == wxDEFAULT) | |
160 | m_style = wxNORMAL; | |
161 | else | |
162 | m_style = style; | |
163 | ||
164 | if (weight == wxDEFAULT) | |
165 | m_weight = wxNORMAL; | |
166 | else | |
167 | m_weight = weight; | |
168 | ||
169 | if (pointSize == wxDEFAULT) | |
170 | m_pointSize = 12; | |
171 | else | |
172 | m_pointSize = pointSize; | |
173 | ||
174 | m_underlined = underlined; | |
175 | m_encoding = encoding; | |
176 | } | |
177 | ||
178 | wxFontRefData::~wxFontRefData() | |
179 | { | |
180 | wxNode* node = m_fonts.First(); | |
181 | while (node) | |
182 | { | |
183 | wxXFont* f = (wxXFont*) node->Data(); | |
184 | delete f; | |
185 | node = node->Next(); | |
186 | } | |
187 | m_fonts.Clear(); | |
188 | } | |
189 | ||
190 | // ---------------------------------------------------------------------------- | |
191 | // wxFont | |
192 | // ---------------------------------------------------------------------------- | |
193 | ||
194 | wxFont::wxFont(const wxNativeFontInfo& info) | |
195 | { | |
196 | Init(); | |
197 | ||
198 | (void)Create(info.GetXFontName()); | |
199 | } | |
200 | ||
201 | void wxFont::Init() | |
202 | { | |
203 | } | |
204 | ||
205 | bool wxFont::Create(int pointSize, | |
206 | int family, | |
207 | int style, | |
208 | int weight, | |
209 | bool underlined, | |
210 | const wxString& faceName, | |
211 | wxFontEncoding encoding) | |
212 | { | |
213 | UnRef(); | |
214 | m_refData = new wxFontRefData(pointSize, family, style, weight, | |
215 | underlined, faceName, encoding); | |
216 | ||
217 | RealizeResource(); | |
218 | ||
219 | return TRUE; | |
220 | } | |
221 | ||
222 | bool wxFont::Create(const wxString& fontname, wxFontEncoding enc) | |
223 | { | |
224 | if( !fontname ) | |
225 | { | |
226 | *this = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT); | |
227 | return TRUE; | |
228 | } | |
229 | ||
230 | m_refData = new wxFontRefData(); | |
231 | ||
232 | M_FONTDATA->m_nativeFontInfo.SetXFontName(fontname); // X font name | |
233 | ||
234 | wxString tmp; | |
235 | ||
236 | wxStringTokenizer tn( fontname, wxT("-") ); | |
237 | ||
238 | tn.GetNextToken(); // skip initial empty token | |
239 | tn.GetNextToken(); // foundry | |
240 | ||
241 | ||
242 | M_FONTDATA->m_faceName = tn.GetNextToken(); // family | |
243 | ||
244 | tmp = tn.GetNextToken().MakeUpper(); // weight | |
245 | if (tmp == wxT("BOLD")) M_FONTDATA->m_weight = wxBOLD; | |
246 | if (tmp == wxT("BLACK")) M_FONTDATA->m_weight = wxBOLD; | |
247 | if (tmp == wxT("EXTRABOLD")) M_FONTDATA->m_weight = wxBOLD; | |
248 | if (tmp == wxT("DEMIBOLD")) M_FONTDATA->m_weight = wxBOLD; | |
249 | if (tmp == wxT("ULTRABOLD")) M_FONTDATA->m_weight = wxBOLD; | |
250 | ||
251 | if (tmp == wxT("LIGHT")) M_FONTDATA->m_weight = wxLIGHT; | |
252 | if (tmp == wxT("THIN")) M_FONTDATA->m_weight = wxLIGHT; | |
253 | ||
254 | tmp = tn.GetNextToken().MakeUpper(); // slant | |
255 | if (tmp == wxT("I")) M_FONTDATA->m_style = wxITALIC; | |
256 | if (tmp == wxT("O")) M_FONTDATA->m_style = wxITALIC; | |
257 | ||
258 | tn.GetNextToken(); // set width | |
259 | tn.GetNextToken(); // add. style | |
260 | tn.GetNextToken(); // pixel size | |
261 | ||
262 | tmp = tn.GetNextToken(); // pointsize | |
263 | if (tmp != wxT("*")) | |
264 | { | |
265 | long num = wxStrtol (tmp.c_str(), (wxChar **) NULL, 10); | |
266 | M_FONTDATA->m_pointSize = (int)(num / 10); | |
267 | } | |
268 | ||
269 | tn.GetNextToken(); // x-res | |
270 | tn.GetNextToken(); // y-res | |
271 | ||
272 | tmp = tn.GetNextToken().MakeUpper(); // spacing | |
273 | ||
274 | if (tmp == wxT("M")) | |
275 | M_FONTDATA->m_family = wxMODERN; | |
276 | else if (M_FONTDATA->m_faceName == wxT("TIMES")) | |
277 | M_FONTDATA->m_family = wxROMAN; | |
278 | else if (M_FONTDATA->m_faceName == wxT("HELVETICA")) | |
279 | M_FONTDATA->m_family = wxSWISS; | |
280 | else if (M_FONTDATA->m_faceName == wxT("LUCIDATYPEWRITER")) | |
281 | M_FONTDATA->m_family = wxTELETYPE; | |
282 | else if (M_FONTDATA->m_faceName == wxT("LUCIDA")) | |
283 | M_FONTDATA->m_family = wxDECORATIVE; | |
284 | else if (M_FONTDATA->m_faceName == wxT("UTOPIA")) | |
285 | M_FONTDATA->m_family = wxSCRIPT; | |
286 | ||
287 | tn.GetNextToken(); // avg width | |
288 | ||
289 | // deal with font encoding | |
290 | M_FONTDATA->m_encoding = enc; | |
291 | if ( M_FONTDATA->m_encoding == wxFONTENCODING_SYSTEM ) | |
292 | { | |
293 | wxString registry = tn.GetNextToken().MakeUpper(), | |
294 | encoding = tn.GetNextToken().MakeUpper(); | |
295 | ||
296 | if ( registry == _T("ISO8859") ) | |
297 | { | |
298 | int cp; | |
299 | if ( wxSscanf(encoding, wxT("%d"), &cp) == 1 ) | |
300 | { | |
301 | M_FONTDATA->m_encoding = | |
302 | (wxFontEncoding)(wxFONTENCODING_ISO8859_1 + cp - 1); | |
303 | } | |
304 | } | |
305 | else if ( registry == _T("MICROSOFT") ) | |
306 | { | |
307 | int cp; | |
308 | if ( wxSscanf(encoding, wxT("cp125%d"), &cp) == 1 ) | |
309 | { | |
310 | M_FONTDATA->m_encoding = | |
311 | (wxFontEncoding)(wxFONTENCODING_CP1250 + cp); | |
312 | } | |
313 | } | |
314 | else if ( registry == _T("KOI8") ) | |
315 | { | |
316 | M_FONTDATA->m_encoding = wxFONTENCODING_KOI8; | |
317 | } | |
318 | //else: unknown encoding - may be give a warning here? | |
319 | else | |
320 | return FALSE; | |
321 | } | |
322 | return TRUE; | |
323 | } | |
324 | ||
325 | wxFont::~wxFont() | |
326 | { | |
327 | } | |
328 | ||
329 | // ---------------------------------------------------------------------------- | |
330 | // change the font attributes | |
331 | // ---------------------------------------------------------------------------- | |
332 | ||
333 | void wxFont::Unshare() | |
334 | { | |
335 | // Don't change shared data | |
336 | if (!m_refData) | |
337 | { | |
338 | m_refData = new wxFontRefData(); | |
339 | } | |
340 | else | |
341 | { | |
342 | wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData); | |
343 | UnRef(); | |
344 | m_refData = ref; | |
345 | } | |
346 | } | |
347 | ||
348 | void wxFont::SetPointSize(int pointSize) | |
349 | { | |
350 | Unshare(); | |
351 | ||
352 | M_FONTDATA->m_pointSize = pointSize; | |
353 | M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now | |
354 | ||
355 | RealizeResource(); | |
356 | } | |
357 | ||
358 | void wxFont::SetFamily(int family) | |
359 | { | |
360 | Unshare(); | |
361 | ||
362 | M_FONTDATA->m_family = family; | |
363 | M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now | |
364 | ||
365 | RealizeResource(); | |
366 | } | |
367 | ||
368 | void wxFont::SetStyle(int style) | |
369 | { | |
370 | Unshare(); | |
371 | ||
372 | M_FONTDATA->m_style = style; | |
373 | M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now | |
374 | ||
375 | RealizeResource(); | |
376 | } | |
377 | ||
378 | void wxFont::SetWeight(int weight) | |
379 | { | |
380 | Unshare(); | |
381 | ||
382 | M_FONTDATA->m_weight = weight; | |
383 | M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now | |
384 | ||
385 | RealizeResource(); | |
386 | } | |
387 | ||
388 | void wxFont::SetFaceName(const wxString& faceName) | |
389 | { | |
390 | Unshare(); | |
391 | ||
392 | M_FONTDATA->m_faceName = faceName; | |
393 | M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now | |
394 | ||
395 | RealizeResource(); | |
396 | } | |
397 | ||
398 | void wxFont::SetUnderlined(bool underlined) | |
399 | { | |
400 | Unshare(); | |
401 | ||
402 | M_FONTDATA->m_underlined = underlined; | |
403 | ||
404 | RealizeResource(); | |
405 | } | |
406 | ||
407 | void wxFont::SetEncoding(wxFontEncoding encoding) | |
408 | { | |
409 | Unshare(); | |
410 | ||
411 | M_FONTDATA->m_encoding = encoding; | |
412 | M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now | |
413 | ||
414 | RealizeResource(); | |
415 | } | |
416 | ||
417 | void wxFont::SetNativeFontInfo(const wxNativeFontInfo& info) | |
418 | { | |
419 | Unshare(); | |
420 | ||
421 | M_FONTDATA->m_nativeFontInfo = info; | |
422 | } | |
423 | ||
424 | // ---------------------------------------------------------------------------- | |
425 | // query font attributes | |
426 | // ---------------------------------------------------------------------------- | |
427 | ||
428 | int wxFont::GetPointSize() const | |
429 | { | |
430 | wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); | |
431 | ||
432 | return M_FONTDATA->m_pointSize; | |
433 | } | |
434 | ||
435 | wxString wxFont::GetFaceName() const | |
436 | { | |
437 | wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") ); | |
438 | ||
439 | return M_FONTDATA->m_faceName ; | |
440 | } | |
441 | ||
442 | int wxFont::GetFamily() const | |
443 | { | |
444 | wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); | |
445 | ||
446 | return M_FONTDATA->m_family; | |
447 | } | |
448 | ||
449 | int wxFont::GetStyle() const | |
450 | { | |
451 | wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); | |
452 | ||
453 | return M_FONTDATA->m_style; | |
454 | } | |
455 | ||
456 | int wxFont::GetWeight() const | |
457 | { | |
458 | wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); | |
459 | ||
460 | return M_FONTDATA->m_weight; | |
461 | } | |
462 | ||
463 | bool wxFont::GetUnderlined() const | |
464 | { | |
465 | wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") ); | |
466 | ||
467 | return M_FONTDATA->m_underlined; | |
468 | } | |
469 | ||
470 | wxFontEncoding wxFont::GetEncoding() const | |
471 | { | |
472 | wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") ); | |
473 | ||
474 | return M_FONTDATA->m_encoding; | |
475 | } | |
476 | ||
477 | wxNativeFontInfo *wxFont::GetNativeFontInfo() const | |
478 | { | |
479 | wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") ); | |
480 | ||
481 | if(M_FONTDATA->m_nativeFontInfo.GetXFontName().IsEmpty()) | |
482 | GetInternalFont(); | |
483 | ||
484 | return new wxNativeFontInfo(M_FONTDATA->m_nativeFontInfo); | |
485 | } | |
486 | ||
487 | // ---------------------------------------------------------------------------- | |
488 | // real implementation | |
489 | // ---------------------------------------------------------------------------- | |
490 | ||
491 | // Find an existing, or create a new, XFontStruct | |
492 | // based on this wxFont and the given scale. Append the | |
493 | // font to list in the private data for future reference. | |
494 | wxXFont* wxFont::GetInternalFont(double scale, WXDisplay* display) const | |
495 | { | |
496 | if ( !Ok() ) | |
497 | return (wxXFont *)NULL; | |
498 | ||
499 | long intScale = long(scale * 100.0 + 0.5); // key for wxXFont | |
500 | int pointSize = (M_FONTDATA->m_pointSize * 10 * intScale) / 100; | |
501 | ||
502 | // search existing fonts first | |
503 | wxNode* node = M_FONTDATA->m_fonts.First(); | |
504 | while (node) | |
505 | { | |
506 | wxXFont* f = (wxXFont*) node->Data(); | |
507 | if ((!display || (f->m_display == display)) && (f->m_scale == intScale)) | |
508 | return f; | |
509 | node = node->Next(); | |
510 | } | |
511 | ||
512 | // not found, create a new one | |
513 | XFontStruct *font = (XFontStruct *) | |
514 | wxLoadQueryNearestFont(pointSize, | |
515 | M_FONTDATA->m_family, | |
516 | M_FONTDATA->m_style, | |
517 | M_FONTDATA->m_weight, | |
518 | M_FONTDATA->m_underlined, | |
519 | wxT(""), | |
520 | M_FONTDATA->m_encoding); | |
521 | ||
522 | if ( !font ) | |
523 | { | |
524 | wxFAIL_MSG( wxT("Could not allocate even a default font -- something is wrong.") ); | |
525 | ||
526 | return (wxXFont*) NULL; | |
527 | } | |
528 | ||
529 | wxXFont* f = new wxXFont; | |
530 | f->m_fontStruct = (WXFontStructPtr)font; | |
531 | f->m_display = ( display ? display : wxGetDisplay() ); | |
532 | f->m_scale = intScale; | |
533 | f->m_fontList = XmFontListCreate ((XFontStruct*) font, XmSTRING_DEFAULT_CHARSET); | |
534 | M_FONTDATA->m_fonts.Append(f); | |
535 | ||
536 | return f; | |
537 | } | |
538 | ||
539 | WXFontStructPtr wxFont::GetFontStruct(double scale, WXDisplay* display) const | |
540 | { | |
541 | wxXFont* f = GetInternalFont(scale, display); | |
542 | ||
543 | return (f ? f->m_fontStruct : (WXFontStructPtr) 0); | |
544 | } | |
545 | ||
546 | WXFontList wxFont::GetFontList(double scale, WXDisplay* display) const | |
547 | { | |
548 | wxXFont* f = GetInternalFont(scale, display); | |
549 | ||
550 | return (f ? f->m_fontList : (WXFontList) 0); | |
551 | } | |
552 |