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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: font.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | // ============================================================================ | |
11 | // declarations | |
12 | // ============================================================================ | |
13 | ||
14 | // ---------------------------------------------------------------------------- | |
15 | // headers | |
16 | // ---------------------------------------------------------------------------- | |
17 | ||
18 | #ifdef __GNUG__ | |
19 | #pragma implementation "font.h" | |
20 | #endif | |
21 | ||
22 | #include "wx/font.h" | |
23 | #include "wx/fontutil.h" | |
24 | #include "wx/cmndata.h" | |
25 | #include "wx/utils.h" | |
26 | #include "wx/log.h" | |
27 | #include "wx/gdicmn.h" | |
28 | #include "wx/tokenzr.h" | |
29 | #include "wx/settings.h" | |
30 | ||
31 | #include <strings.h> | |
32 | ||
33 | #include <gdk/gdk.h> | |
34 | #include <gdk/gdkprivate.h> | |
35 | #include <gtk/gtk.h> | |
36 | ||
37 | // ---------------------------------------------------------------------------- | |
38 | // wxFontRefData | |
39 | // ---------------------------------------------------------------------------- | |
40 | ||
41 | class wxFontRefData : public wxObjectRefData | |
42 | { | |
43 | public: | |
44 | wxFontRefData(int size = wxDEFAULT, | |
45 | int family = wxDEFAULT, | |
46 | int style = wxDEFAULT, | |
47 | int weight = wxDEFAULT, | |
48 | bool underlined = FALSE, | |
49 | const wxString& faceName = wxEmptyString, | |
50 | wxFontEncoding encoding = wxFONTENCODING_DEFAULT); | |
51 | wxFontRefData( const wxFontRefData& data ); | |
52 | virtual ~wxFontRefData(); | |
53 | ||
54 | protected: | |
55 | // common part of all ctors | |
56 | void Init(int pointSize, | |
57 | int family, | |
58 | int style, | |
59 | int weight, | |
60 | bool underlined, | |
61 | const wxString& faceName, | |
62 | wxFontEncoding encoding); | |
63 | ||
64 | private: | |
65 | wxList m_scaled_xfonts; | |
66 | int m_pointSize; | |
67 | int m_family, | |
68 | m_style, | |
69 | m_weight; | |
70 | bool m_underlined; | |
71 | wxString m_faceName; | |
72 | wxFontEncoding m_encoding; | |
73 | ||
74 | wxNativeFontInfo m_nativeFontInfo; | |
75 | ||
76 | friend class wxFont; | |
77 | }; | |
78 | ||
79 | // ============================================================================ | |
80 | // implementation | |
81 | // ============================================================================ | |
82 | ||
83 | // ---------------------------------------------------------------------------- | |
84 | // wxFontRefData | |
85 | // ---------------------------------------------------------------------------- | |
86 | ||
87 | void wxFontRefData::Init(int pointSize, | |
88 | int family, | |
89 | int style, | |
90 | int weight, | |
91 | bool underlined, | |
92 | const wxString& faceName, | |
93 | wxFontEncoding encoding) | |
94 | { | |
95 | if (family == wxDEFAULT) | |
96 | m_family = wxSWISS; | |
97 | else | |
98 | m_family = family; | |
99 | ||
100 | m_faceName = faceName; | |
101 | ||
102 | if (style == wxDEFAULT) | |
103 | m_style = wxNORMAL; | |
104 | else | |
105 | m_style = style; | |
106 | ||
107 | if (weight == wxDEFAULT) | |
108 | m_weight = wxNORMAL; | |
109 | else | |
110 | m_weight = weight; | |
111 | ||
112 | if (pointSize == wxDEFAULT) | |
113 | m_pointSize = 12; | |
114 | else | |
115 | m_pointSize = pointSize; | |
116 | ||
117 | m_underlined = underlined; | |
118 | m_encoding = encoding; | |
119 | } | |
120 | ||
121 | wxFontRefData::wxFontRefData( const wxFontRefData& data ) | |
122 | : m_scaled_xfonts(wxKEY_INTEGER) | |
123 | { | |
124 | Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight, | |
125 | data.m_underlined, data.m_faceName, data.m_encoding); | |
126 | } | |
127 | ||
128 | wxFontRefData::wxFontRefData(int size, int family, int style, | |
129 | int weight, bool underlined, | |
130 | const wxString& faceName, | |
131 | wxFontEncoding encoding) | |
132 | : m_scaled_xfonts(wxKEY_INTEGER) | |
133 | { | |
134 | Init(size, family, style, weight, underlined, faceName, encoding); | |
135 | } | |
136 | ||
137 | wxFontRefData::~wxFontRefData() | |
138 | { | |
139 | wxNode *node = m_scaled_xfonts.First(); | |
140 | while (node) | |
141 | { | |
142 | GdkFont *font = (GdkFont*)node->Data(); | |
143 | wxNode *next = node->Next(); | |
144 | gdk_font_unref( font ); | |
145 | node = next; | |
146 | } | |
147 | } | |
148 | ||
149 | // ---------------------------------------------------------------------------- | |
150 | // wxNativeFontInfo | |
151 | // ---------------------------------------------------------------------------- | |
152 | ||
153 | bool wxNativeFontInfo::FromString(const wxString& s) | |
154 | { | |
155 | wxStringTokenizer tokenizer(s, _T(";")); | |
156 | ||
157 | wxString token = tokenizer.GetNextToken(); | |
158 | // | |
159 | // Ignore the version for now | |
160 | // | |
161 | ||
162 | xFontName = tokenizer.GetNextToken(); | |
163 | if(!xFontName) | |
164 | return FALSE; | |
165 | ||
166 | return TRUE; | |
167 | } | |
168 | ||
169 | wxString wxNativeFontInfo::ToString() const | |
170 | { | |
171 | wxString s; | |
172 | ||
173 | s.Printf(_T("%d;%s"), | |
174 | 0, // version | |
175 | xFontName.c_str()); | |
176 | ||
177 | return s; | |
178 | } | |
179 | ||
180 | // ---------------------------------------------------------------------------- | |
181 | // wxFont | |
182 | // ---------------------------------------------------------------------------- | |
183 | ||
184 | IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject) | |
185 | ||
186 | void wxFont::Init() | |
187 | { | |
188 | if (wxTheFontList) | |
189 | wxTheFontList->Append( this ); | |
190 | } | |
191 | ||
192 | wxFont::wxFont(const wxNativeFontInfo& info) | |
193 | { | |
194 | Init(); | |
195 | ||
196 | Create(info.xFontName); | |
197 | } | |
198 | ||
199 | bool wxFont::Create(const wxNativeFontInfo& info) | |
200 | { | |
201 | return Create(info.xFontName); | |
202 | } | |
203 | ||
204 | bool wxFont::Create( int pointSize, | |
205 | int family, | |
206 | int style, | |
207 | int weight, | |
208 | bool underlined, | |
209 | const wxString& face, | |
210 | wxFontEncoding encoding) | |
211 | { | |
212 | m_refData = new wxFontRefData(pointSize, family, style, weight, | |
213 | underlined, face, encoding); | |
214 | ||
215 | return TRUE; | |
216 | } | |
217 | ||
218 | bool wxFont::Create(const wxString& fontname, wxFontEncoding enc) | |
219 | { | |
220 | if( !fontname ) | |
221 | { | |
222 | *this = wxSystemSettings::GetSystemFont( wxSYS_DEFAULT_GUI_FONT); | |
223 | return TRUE; | |
224 | } | |
225 | ||
226 | m_refData = new wxFontRefData(); | |
227 | ||
228 | M_FONTDATA->m_nativeFontInfo.xFontName = fontname; // X font name | |
229 | ||
230 | wxString tmp; | |
231 | ||
232 | wxStringTokenizer tn( fontname, wxT("-") ); | |
233 | ||
234 | tn.GetNextToken(); // skip initial empty token | |
235 | tn.GetNextToken(); // foundry | |
236 | ||
237 | ||
238 | M_FONTDATA->m_faceName = tn.GetNextToken(); // family | |
239 | ||
240 | tmp = tn.GetNextToken().MakeUpper(); // weight | |
241 | if (tmp == wxT("BOLD")) M_FONTDATA->m_weight = wxBOLD; | |
242 | if (tmp == wxT("BLACK")) M_FONTDATA->m_weight = wxBOLD; | |
243 | if (tmp == wxT("EXTRABOLD")) M_FONTDATA->m_weight = wxBOLD; | |
244 | if (tmp == wxT("DEMIBOLD")) M_FONTDATA->m_weight = wxBOLD; | |
245 | if (tmp == wxT("ULTRABOLD")) M_FONTDATA->m_weight = wxBOLD; | |
246 | ||
247 | if (tmp == wxT("LIGHT")) M_FONTDATA->m_weight = wxLIGHT; | |
248 | if (tmp == wxT("THIN")) M_FONTDATA->m_weight = wxLIGHT; | |
249 | ||
250 | tmp = tn.GetNextToken().MakeUpper(); // slant | |
251 | if (tmp == wxT("I")) M_FONTDATA->m_style = wxITALIC; | |
252 | if (tmp == wxT("O")) M_FONTDATA->m_style = wxITALIC; | |
253 | ||
254 | tn.GetNextToken(); // set width | |
255 | tn.GetNextToken(); // add. style | |
256 | tn.GetNextToken(); // pixel size | |
257 | ||
258 | tmp = tn.GetNextToken(); // pointsize | |
259 | if (tmp != wxT("*")) | |
260 | { | |
261 | long num = wxStrtol (tmp.c_str(), (wxChar **) NULL, 10); | |
262 | M_FONTDATA->m_pointSize = (int)(num / 10); | |
263 | } | |
264 | ||
265 | tn.GetNextToken(); // x-res | |
266 | tn.GetNextToken(); // y-res | |
267 | ||
268 | tmp = tn.GetNextToken().MakeUpper(); // spacing | |
269 | ||
270 | if (tmp == wxT("M")) | |
271 | M_FONTDATA->m_family = wxMODERN; | |
272 | else if (M_FONTDATA->m_faceName == wxT("TIMES")) | |
273 | M_FONTDATA->m_family = wxROMAN; | |
274 | else if (M_FONTDATA->m_faceName == wxT("HELVETICA")) | |
275 | M_FONTDATA->m_family = wxSWISS; | |
276 | else if (M_FONTDATA->m_faceName == wxT("LUCIDATYPEWRITER")) | |
277 | M_FONTDATA->m_family = wxTELETYPE; | |
278 | else if (M_FONTDATA->m_faceName == wxT("LUCIDA")) | |
279 | M_FONTDATA->m_family = wxDECORATIVE; | |
280 | else if (M_FONTDATA->m_faceName == wxT("UTOPIA")) | |
281 | M_FONTDATA->m_family = wxSCRIPT; | |
282 | ||
283 | tn.GetNextToken(); // avg width | |
284 | ||
285 | // deal with font encoding | |
286 | M_FONTDATA->m_encoding = enc; | |
287 | if ( M_FONTDATA->m_encoding == wxFONTENCODING_SYSTEM ) | |
288 | { | |
289 | wxString registry = tn.GetNextToken().MakeUpper(), | |
290 | encoding = tn.GetNextToken().MakeUpper(); | |
291 | ||
292 | if ( registry == _T("ISO8859") ) | |
293 | { | |
294 | int cp; | |
295 | if ( wxSscanf(encoding, wxT("%d"), &cp) == 1 ) | |
296 | { | |
297 | M_FONTDATA->m_encoding = | |
298 | (wxFontEncoding)(wxFONTENCODING_ISO8859_1 + cp - 1); | |
299 | } | |
300 | } | |
301 | else if ( registry == _T("MICROSOFT") ) | |
302 | { | |
303 | int cp; | |
304 | if ( wxSscanf(encoding, wxT("cp125%d"), &cp) == 1 ) | |
305 | { | |
306 | M_FONTDATA->m_encoding = | |
307 | (wxFontEncoding)(wxFONTENCODING_CP1250 + cp); | |
308 | } | |
309 | } | |
310 | else if ( registry == _T("KOI8") ) | |
311 | { | |
312 | M_FONTDATA->m_encoding = wxFONTENCODING_KOI8; | |
313 | } | |
314 | //else: unknown encoding - may be give a warning here? | |
315 | else | |
316 | return FALSE; | |
317 | } | |
318 | return TRUE; | |
319 | } | |
320 | ||
321 | void wxFont::Unshare() | |
322 | { | |
323 | if (!m_refData) | |
324 | { | |
325 | m_refData = new wxFontRefData(); | |
326 | } | |
327 | else | |
328 | { | |
329 | wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData); | |
330 | UnRef(); | |
331 | m_refData = ref; | |
332 | } | |
333 | } | |
334 | ||
335 | wxFont::~wxFont() | |
336 | { | |
337 | if (wxTheFontList) | |
338 | wxTheFontList->DeleteObject( this ); | |
339 | } | |
340 | ||
341 | // ---------------------------------------------------------------------------- | |
342 | // accessors | |
343 | // ---------------------------------------------------------------------------- | |
344 | ||
345 | int wxFont::GetPointSize() const | |
346 | { | |
347 | wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); | |
348 | ||
349 | return M_FONTDATA->m_pointSize; | |
350 | } | |
351 | ||
352 | wxString wxFont::GetFaceName() const | |
353 | { | |
354 | wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") ); | |
355 | ||
356 | return M_FONTDATA->m_faceName; | |
357 | } | |
358 | ||
359 | int wxFont::GetFamily() const | |
360 | { | |
361 | wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); | |
362 | ||
363 | return M_FONTDATA->m_family; | |
364 | } | |
365 | ||
366 | int wxFont::GetStyle() const | |
367 | { | |
368 | wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); | |
369 | ||
370 | return M_FONTDATA->m_style; | |
371 | } | |
372 | ||
373 | int wxFont::GetWeight() const | |
374 | { | |
375 | wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); | |
376 | ||
377 | return M_FONTDATA->m_weight; | |
378 | } | |
379 | ||
380 | bool wxFont::GetUnderlined() const | |
381 | { | |
382 | wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") ); | |
383 | ||
384 | return M_FONTDATA->m_underlined; | |
385 | } | |
386 | ||
387 | ||
388 | wxFontEncoding wxFont::GetEncoding() const | |
389 | { | |
390 | wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") ); | |
391 | ||
392 | return M_FONTDATA->m_encoding; | |
393 | } | |
394 | ||
395 | wxNativeFontInfo *wxFont::GetNativeFontInfo() const | |
396 | { | |
397 | wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") ); | |
398 | ||
399 | if(M_FONTDATA->m_nativeFontInfo.xFontName.IsEmpty()) | |
400 | GetInternalFont(); | |
401 | ||
402 | return new wxNativeFontInfo(M_FONTDATA->m_nativeFontInfo); | |
403 | } | |
404 | ||
405 | ||
406 | // ---------------------------------------------------------------------------- | |
407 | // change font attributes | |
408 | // ---------------------------------------------------------------------------- | |
409 | ||
410 | void wxFont::SetPointSize(int pointSize) | |
411 | { | |
412 | Unshare(); | |
413 | ||
414 | M_FONTDATA->m_pointSize = pointSize; | |
415 | M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now | |
416 | } | |
417 | ||
418 | void wxFont::SetFamily(int family) | |
419 | { | |
420 | Unshare(); | |
421 | ||
422 | M_FONTDATA->m_family = family; | |
423 | M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now | |
424 | } | |
425 | ||
426 | void wxFont::SetStyle(int style) | |
427 | { | |
428 | Unshare(); | |
429 | ||
430 | M_FONTDATA->m_style = style; | |
431 | M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now | |
432 | } | |
433 | ||
434 | void wxFont::SetWeight(int weight) | |
435 | { | |
436 | Unshare(); | |
437 | ||
438 | M_FONTDATA->m_weight = weight; | |
439 | M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now | |
440 | } | |
441 | ||
442 | void wxFont::SetFaceName(const wxString& faceName) | |
443 | { | |
444 | Unshare(); | |
445 | ||
446 | M_FONTDATA->m_faceName = faceName; | |
447 | M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now | |
448 | } | |
449 | ||
450 | void wxFont::SetUnderlined(bool underlined) | |
451 | { | |
452 | Unshare(); | |
453 | ||
454 | M_FONTDATA->m_underlined = underlined; | |
455 | } | |
456 | ||
457 | void wxFont::SetEncoding(wxFontEncoding encoding) | |
458 | { | |
459 | Unshare(); | |
460 | ||
461 | M_FONTDATA->m_encoding = encoding; | |
462 | M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now | |
463 | } | |
464 | ||
465 | void wxFont::SetNativeFontInfo(const wxNativeFontInfo& info) | |
466 | { | |
467 | Unshare(); | |
468 | ||
469 | M_FONTDATA->m_nativeFontInfo = info; | |
470 | } | |
471 | ||
472 | // ---------------------------------------------------------------------------- | |
473 | // get internal representation of font | |
474 | // ---------------------------------------------------------------------------- | |
475 | ||
476 | static GdkFont *g_systemDefaultGuiFont = (GdkFont*) NULL; | |
477 | ||
478 | GdkFont *GtkGetDefaultGuiFont() | |
479 | { | |
480 | if (!g_systemDefaultGuiFont) | |
481 | { | |
482 | GtkWidget *widget = gtk_button_new(); | |
483 | GtkStyle *def = gtk_rc_get_style( widget ); | |
484 | if (def) | |
485 | { | |
486 | g_systemDefaultGuiFont = gdk_font_ref( def->font ); | |
487 | } | |
488 | else | |
489 | { | |
490 | def = gtk_widget_get_default_style(); | |
491 | if (def) | |
492 | g_systemDefaultGuiFont = gdk_font_ref( def->font ); | |
493 | } | |
494 | gtk_widget_destroy( widget ); | |
495 | } | |
496 | else | |
497 | { | |
498 | // already have it, but ref it once more before returning | |
499 | gdk_font_ref(g_systemDefaultGuiFont); | |
500 | } | |
501 | ||
502 | return g_systemDefaultGuiFont; | |
503 | } | |
504 | ||
505 | GdkFont *wxFont::GetInternalFont( float scale ) const | |
506 | { | |
507 | if (!Ok()) | |
508 | { | |
509 | wxFAIL_MSG( wxT("invalid font") ); | |
510 | ||
511 | return (GdkFont*) NULL; | |
512 | } | |
513 | ||
514 | long int_scale = long(scale * 100.0 + 0.5); /* key for fontlist */ | |
515 | int point_scale = (int)((M_FONTDATA->m_pointSize * 10 * int_scale) / 100); | |
516 | GdkFont *font = (GdkFont *) NULL; | |
517 | ||
518 | wxNode *node = M_FONTDATA->m_scaled_xfonts.Find(int_scale); | |
519 | if (node) | |
520 | { | |
521 | font = (GdkFont*)node->Data(); | |
522 | } | |
523 | else | |
524 | { | |
525 | if (*this == wxSystemSettings::GetSystemFont( wxSYS_DEFAULT_GUI_FONT)) | |
526 | { | |
527 | font = GtkGetDefaultGuiFont(); | |
528 | } | |
529 | if (!font) | |
530 | { | |
531 | font = wxLoadQueryNearestFont( point_scale, | |
532 | M_FONTDATA->m_family, | |
533 | M_FONTDATA->m_style, | |
534 | M_FONTDATA->m_weight, | |
535 | M_FONTDATA->m_underlined, | |
536 | M_FONTDATA->m_faceName, | |
537 | M_FONTDATA->m_encoding, | |
538 | &M_FONTDATA->m_nativeFontInfo.xFontName ); | |
539 | } | |
540 | ||
541 | M_FONTDATA->m_scaled_xfonts.Append( int_scale, (wxObject*)font ); | |
542 | } | |
543 | ||
544 | // it's quite useless to make it a wxCHECK because we're going to crash | |
545 | // anyhow... | |
546 | wxASSERT_MSG( font, wxT("could not load any font?") ); | |
547 | ||
548 | return font; | |
549 | } | |
550 |