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