Restore code for closing inherited file descriptors in the child.
[wxWidgets.git] / src / unix / fontutil.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/unix/fontutil.cpp
3 // Purpose: Font helper functions for wxX11, wxGTK, wxMotif
4 // Author: Vadim Zeitlin
5 // Modified by:
6 // Created: 05.11.99
7 // RCS-ID: $Id$
8 // Copyright: (c) Vadim Zeitlin
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #include "wx/fontutil.h"
28
29 #ifndef WX_PRECOMP
30 #include "wx/app.h"
31 #include "wx/font.h" // wxFont enums
32 #include "wx/encinfo.h"
33 #include "wx/hash.h"
34 #include "wx/utils.h" // for wxGetDisplay()
35 #include "wx/module.h"
36 #endif // PCH
37
38 #include "wx/fontmap.h"
39 #include "wx/tokenzr.h"
40 #include "wx/fontenum.h"
41
42 #if wxUSE_PANGO
43
44 #include "pango/pango.h"
45
46 #ifdef __WXGTK20__
47 #include "wx/gtk/private.h"
48 extern GtkWidget *wxGetRootWindow();
49
50 #define wxPANGO_CONV wxGTK_CONV_SYS
51 #define wxPANGO_CONV_BACK wxGTK_CONV_BACK_SYS
52 #else
53 #include "wx/x11/private.h"
54 #include "wx/gtk/private/string.h"
55
56 #define wxPANGO_CONV(s) s.utf8_str()
57 #define wxPANGO_CONV_BACK(s) wxString::FromUTF8Unchecked(s)
58 #endif
59
60 // ----------------------------------------------------------------------------
61 // wxNativeFontInfo
62 // ----------------------------------------------------------------------------
63
64 void wxNativeFontInfo::Init()
65 {
66 description = NULL;
67 }
68
69 void wxNativeFontInfo::Init(const wxNativeFontInfo& info)
70 {
71 if (info.description)
72 description = pango_font_description_copy(info.description);
73 else
74 description = NULL;
75 }
76
77 void wxNativeFontInfo::Free()
78 {
79 if (description)
80 pango_font_description_free(description);
81 }
82
83 int wxNativeFontInfo::GetPointSize() const
84 {
85 return pango_font_description_get_size( description ) / PANGO_SCALE;
86 }
87
88 wxFontStyle wxNativeFontInfo::GetStyle() const
89 {
90 wxFontStyle m_style = wxFONTSTYLE_NORMAL;
91
92 switch (pango_font_description_get_style( description ))
93 {
94 case PANGO_STYLE_NORMAL:
95 m_style = wxFONTSTYLE_NORMAL;
96 break;
97 case PANGO_STYLE_ITALIC:
98 m_style = wxFONTSTYLE_ITALIC;
99 break;
100 case PANGO_STYLE_OBLIQUE:
101 m_style = wxFONTSTYLE_SLANT;
102 break;
103 }
104
105 return m_style;
106 }
107
108 wxFontWeight wxNativeFontInfo::GetWeight() const
109 {
110 // We seem to currently initialize only by string.
111 // In that case PANGO_FONT_MASK_WEIGHT is always set.
112 // if (!(pango_font_description_get_set_fields(description) & PANGO_FONT_MASK_WEIGHT))
113 // return wxFONTWEIGHT_NORMAL;
114
115 PangoWeight pango_weight = pango_font_description_get_weight( description );
116
117 // Until the API can be changed the following ranges of weight values are used:
118 // wxFONTWEIGHT_LIGHT: 100 .. 349 - range of 250
119 // wxFONTWEIGHT_NORMAL: 350 .. 599 - range of 250
120 // wxFONTWEIGHT_BOLD: 600 .. 900 - range of 301 (600 is "semibold" already)
121
122 if (pango_weight >= 600)
123 return wxFONTWEIGHT_BOLD;
124
125 if (pango_weight < 350)
126 return wxFONTWEIGHT_LIGHT;
127
128 return wxFONTWEIGHT_NORMAL;
129 }
130
131 bool wxNativeFontInfo::GetUnderlined() const
132 {
133 return false;
134 }
135
136 wxString wxNativeFontInfo::GetFaceName() const
137 {
138 // the Pango "family" is the wx "face name"
139 return wxPANGO_CONV_BACK(pango_font_description_get_family(description));
140 }
141
142 wxFontFamily wxNativeFontInfo::GetFamily() const
143 {
144 wxFontFamily ret = wxFONTFAMILY_UNKNOWN;
145
146 const char *family_name = pango_font_description_get_family( description );
147
148 // note: not passing -1 as the 2nd parameter to g_ascii_strdown to work
149 // around a bug in the 64-bit glib shipped with solaris 10, -1 causes it
150 // to try to allocate 2^32 bytes.
151 if ( !family_name )
152 return ret;
153 wxGtkString family_text(g_ascii_strdown(family_name, strlen(family_name)));
154
155 // Check for some common fonts, to salvage what we can from the current
156 // win32 centric wxFont API:
157 if (strncasecmp( family_text, "monospace", 9 ) == 0)
158 ret = wxFONTFAMILY_TELETYPE; // begins with "Monospace"
159 else if (strncasecmp( family_text, "courier", 7 ) == 0)
160 ret = wxFONTFAMILY_TELETYPE; // begins with "Courier"
161 #if defined(__WXGTK20__) || defined(HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE)
162 else
163 #ifdef __WXGTK20__
164 if (!gtk_check_version(2,4,0))
165 #endif
166 {
167 PangoFontFamily **families;
168 PangoFontFamily *family = NULL;
169 int n_families;
170 pango_context_list_families(
171 #ifdef __WXGTK20__
172 gtk_widget_get_pango_context( wxGetRootWindow() ),
173 #else
174 wxTheApp->GetPangoContext(),
175 #endif
176 &families, &n_families);
177
178 for (int i = 0; i < n_families; ++i)
179 {
180 if (g_ascii_strcasecmp(pango_font_family_get_name( families[i] ),
181 pango_font_description_get_family( description )) == 0 )
182 {
183 family = families[i];
184 break;
185 }
186 }
187
188 g_free(families);
189
190 // Some gtk+ systems might query for a non-existing font from
191 // wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT) on initialization,
192 // don't assert until wxSystemSettings::GetFont is checked for this - MR
193 // wxASSERT_MSG( family, "No appropriate PangoFontFamily found for ::description" );
194
195 if (family != NULL && pango_font_family_is_monospace( family ))
196 ret = wxFONTFAMILY_TELETYPE; // is deemed a monospace font by pango
197 }
198 #endif // GTK+ 2 || HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE
199
200 if (ret == wxFONTFAMILY_UNKNOWN)
201 {
202 if (strstr( family_text, "sans" ) != NULL || strstr( family_text, "Sans" ) != NULL)
203 // checked before serif, so that "* Sans Serif" fonts are detected correctly
204 ret = wxFONTFAMILY_SWISS; // contains "Sans"
205 else if (strstr( family_text, "serif" ) != NULL || strstr( family_text, "Serif" ) != NULL)
206 ret = wxFONTFAMILY_ROMAN; // contains "Serif"
207 else if (strncasecmp( family_text, "times", 5 ) == 0)
208 ret = wxFONTFAMILY_ROMAN; // begins with "Times"
209 else if (strncasecmp( family_text, "old", 3 ) == 0)
210 ret = wxFONTFAMILY_DECORATIVE; // begins with "Old" - "Old English", "Old Town"
211 }
212
213 return ret;
214 }
215
216 wxFontEncoding wxNativeFontInfo::GetEncoding() const
217 {
218 return wxFONTENCODING_SYSTEM;
219 }
220
221 void wxNativeFontInfo::SetPointSize(int pointsize)
222 {
223 pango_font_description_set_size( description, pointsize * PANGO_SCALE );
224 }
225
226 void wxNativeFontInfo::SetStyle(wxFontStyle style)
227 {
228 switch (style)
229 {
230 case wxFONTSTYLE_ITALIC:
231 pango_font_description_set_style( description, PANGO_STYLE_ITALIC );
232 break;
233 case wxFONTSTYLE_SLANT:
234 pango_font_description_set_style( description, PANGO_STYLE_OBLIQUE );
235 break;
236 default:
237 wxFAIL_MSG( "unknown font style" );
238 // fall through
239 case wxFONTSTYLE_NORMAL:
240 pango_font_description_set_style( description, PANGO_STYLE_NORMAL );
241 break;
242 }
243 }
244
245 void wxNativeFontInfo::SetWeight(wxFontWeight weight)
246 {
247 switch (weight)
248 {
249 case wxFONTWEIGHT_BOLD:
250 pango_font_description_set_weight(description, PANGO_WEIGHT_BOLD);
251 break;
252 case wxFONTWEIGHT_LIGHT:
253 pango_font_description_set_weight(description, PANGO_WEIGHT_LIGHT);
254 break;
255 default:
256 wxFAIL_MSG( "unknown font weight" );
257 // fall through
258 case wxFONTWEIGHT_NORMAL:
259 pango_font_description_set_weight(description, PANGO_WEIGHT_NORMAL);
260 }
261 }
262
263 void wxNativeFontInfo::SetUnderlined(bool WXUNUSED(underlined))
264 {
265 // wxWindowDCImpl::DoDrawText will take care of rendering font with
266 // the underline attribute!
267 wxFAIL_MSG( "not implemented" );
268 }
269
270 bool wxNativeFontInfo::SetFaceName(const wxString& facename)
271 {
272 pango_font_description_set_family(description, wxPANGO_CONV(facename));
273
274 // we return true because Pango doesn't tell us if the call failed or not;
275 // instead on wxGTK wxFont::SetFaceName() will call wxFontBase::SetFaceName()
276 // which does the check
277 return true;
278 }
279
280 void wxNativeFontInfo::SetFamily(wxFontFamily family)
281 {
282 wxArrayString facename;
283
284 // the list of fonts associated with a family was partially
285 // taken from http://www.codestyle.org/css/font-family
286
287 switch ( family )
288 {
289 case wxFONTFAMILY_SCRIPT:
290 // corresponds to the cursive font family in the page linked above
291 facename.Add(wxS("URW Chancery L"));
292 facename.Add(wxS("Comic Sans MS"));
293 break;
294
295 case wxFONTFAMILY_DECORATIVE:
296 // corresponds to the fantasy font family in the page linked above
297 facename.Add(wxS("Impact"));
298 break;
299
300 case wxFONTFAMILY_ROMAN:
301 // corresponds to the serif font family in the page linked above
302 facename.Add(wxS("Century Schoolbook L"));
303 facename.Add(wxS("URW Bookman L"));
304 facename.Add(wxS("URW Palladio L"));
305 facename.Add(wxS("DejaVu Serif"));
306 facename.Add(wxS("FreeSerif"));
307 facename.Add(wxS("Times New Roman"));
308 facename.Add(wxS("Times"));
309 break;
310
311 case wxFONTFAMILY_TELETYPE:
312 case wxFONTFAMILY_MODERN:
313 // corresponds to the monospace font family in the page linked above
314 facename.Add(wxS("DejaVu Sans Mono"));
315 facename.Add(wxS("Nimbus Mono L"));
316 facename.Add(wxS("Bitstream Vera Sans Mono"));
317 facename.Add(wxS("Andale Mono"));
318 facename.Add(wxS("Lucida Sans Typewriter"));
319 facename.Add(wxS("FreeMono"));
320 facename.Add(wxS("Courier New"));
321 facename.Add(wxS("Courier"));
322 break;
323
324 case wxFONTFAMILY_SWISS:
325 case wxFONTFAMILY_DEFAULT:
326 default:
327 // corresponds to the sans-serif font family in the page linked above
328 facename.Add(wxS("DejaVu Sans"));
329 facename.Add(wxS("URW Gothic L"));
330 facename.Add(wxS("Nimbus Sans L"));
331 facename.Add(wxS("Bitstream Vera Sans"));
332 facename.Add(wxS("Lucida Sans"));
333 facename.Add(wxS("Arial"));
334 facename.Add(wxS("FreeSans"));
335 break;
336 }
337
338 SetFaceName(facename);
339 }
340
341 void wxNativeFontInfo::SetEncoding(wxFontEncoding WXUNUSED(encoding))
342 {
343 wxFAIL_MSG( "not implemented: Pango encoding is always UTF8" );
344 }
345
346 bool wxNativeFontInfo::FromString(const wxString& s)
347 {
348 if (description)
349 pango_font_description_free( description );
350
351 // there is a bug in at least pango <= 1.13 which makes it (or its backends)
352 // segfault for very big point sizes and for negative point sizes.
353 // To workaround that bug for pango <= 1.13
354 // (see http://bugzilla.gnome.org/show_bug.cgi?id=340229)
355 // we do the check on the size here using same (arbitrary) limits used by
356 // pango > 1.13. Note that the segfault could happen also for pointsize
357 // smaller than this limit !!
358 wxString str(s);
359 const size_t pos = str.find_last_of(wxS(" "));
360 double size;
361 if ( pos != wxString::npos && wxString(str, pos + 1).ToDouble(&size) )
362 {
363 wxString sizeStr;
364 if ( size < 1 )
365 sizeStr = wxS("1");
366 else if ( size >= 1E6 )
367 sizeStr = wxS("1E6");
368
369 if ( !sizeStr.empty() )
370 {
371 // replace the old size with the adjusted one
372 str = wxString(s, 0, pos) + sizeStr;
373 }
374 }
375
376 description = pango_font_description_from_string(wxPANGO_CONV(str));
377
378 #if wxUSE_FONTENUM
379 // ensure a valid facename is selected
380 if (!wxFontEnumerator::IsValidFacename(GetFaceName()))
381 SetFaceName(wxNORMAL_FONT->GetFaceName());
382 #endif // wxUSE_FONTENUM
383
384 return true;
385 }
386
387 wxString wxNativeFontInfo::ToString() const
388 {
389 wxGtkString str(pango_font_description_to_string( description ));
390
391 return wxPANGO_CONV_BACK(str);
392 }
393
394 bool wxNativeFontInfo::FromUserString(const wxString& s)
395 {
396 return FromString( s );
397 }
398
399 wxString wxNativeFontInfo::ToUserString() const
400 {
401 return ToString();
402 }
403
404 #else // GTK+ 1.x
405
406 #ifdef __X__
407 #ifdef __VMS__
408 #pragma message disable nosimpint
409 #endif
410
411 #include <X11/Xlib.h>
412
413 #ifdef __VMS__
414 #pragma message enable nosimpint
415 #endif
416
417 #elif defined(__WXGTK__)
418 // we have to declare struct tm to avoid problems with first forward
419 // declaring it in C code (glib.h included from gdk.h does it) and then
420 // defining it when time.h is included from the headers below - this is
421 // known not to work at least with Sun CC 6.01
422 #include <time.h>
423
424 #include <gdk/gdk.h>
425 #endif
426
427
428 // ----------------------------------------------------------------------------
429 // private data
430 // ----------------------------------------------------------------------------
431
432 static wxHashTable *g_fontHash = NULL;
433
434 // ----------------------------------------------------------------------------
435 // private functions
436 // ----------------------------------------------------------------------------
437
438 // define the functions to create and destroy native fonts for this toolkit
439 #ifdef __X__
440 wxNativeFont wxLoadFont(const wxString& fontSpec)
441 {
442 return XLoadQueryFont((Display *)wxGetDisplay(), fontSpec);
443 }
444
445 inline void wxFreeFont(wxNativeFont font)
446 {
447 XFreeFont((Display *)wxGetDisplay(), (XFontStruct *)font);
448 }
449 #elif defined(__WXGTK__)
450 wxNativeFont wxLoadFont(const wxString& fontSpec)
451 {
452 // VZ: we should use gdk_fontset_load() instead of gdk_font_load()
453 // here to be able to display Japanese fonts correctly (at least
454 // this is what people report) but unfortunately doing it results
455 // in tons of warnings when using GTK with "normal" European
456 // languages and so we can't always do it and I don't know enough
457 // to determine when should this be done... (FIXME)
458 return gdk_font_load( wxConvertWX2MB(fontSpec) );
459 }
460
461 inline void wxFreeFont(wxNativeFont font)
462 {
463 gdk_font_unref(font);
464 }
465 #else
466 #error "Unknown GUI toolkit"
467 #endif
468
469 static bool wxTestFontSpec(const wxString& fontspec);
470
471 static wxNativeFont wxLoadQueryFont(int pointSize,
472 int family,
473 int style,
474 int weight,
475 bool underlined,
476 const wxString& facename,
477 const wxString& xregistry,
478 const wxString& xencoding,
479 wxString* xFontName);
480
481 // ============================================================================
482 // implementation
483 // ============================================================================
484
485 // ----------------------------------------------------------------------------
486 // wxNativeEncodingInfo
487 // ----------------------------------------------------------------------------
488
489 // convert to/from the string representation: format is
490 // encodingid;registry;encoding[;facename]
491 bool wxNativeEncodingInfo::FromString(const wxString& s)
492 {
493 // use ";", not "-" because it may be part of encoding name
494 wxStringTokenizer tokenizer(s, wxT(";"));
495
496 wxString encid = tokenizer.GetNextToken();
497 long enc;
498 if ( !encid.ToLong(&enc) )
499 return false;
500 encoding = (wxFontEncoding)enc;
501
502 xregistry = tokenizer.GetNextToken();
503 if ( !xregistry )
504 return false;
505
506 xencoding = tokenizer.GetNextToken();
507 if ( !xencoding )
508 return false;
509
510 // ok even if empty
511 facename = tokenizer.GetNextToken();
512
513 return true;
514 }
515
516 wxString wxNativeEncodingInfo::ToString() const
517 {
518 wxString s;
519 s << (long)encoding << wxT(';') << xregistry << wxT(';') << xencoding;
520 if ( !facename.empty() )
521 {
522 s << wxT(';') << facename;
523 }
524
525 return s;
526 }
527
528 // ----------------------------------------------------------------------------
529 // wxNativeFontInfo
530 // ----------------------------------------------------------------------------
531
532 void wxNativeFontInfo::Init()
533 {
534 m_isDefault = true;
535 }
536
537 bool wxNativeFontInfo::FromString(const wxString& s)
538 {
539 wxStringTokenizer tokenizer(s, wxT(";"));
540
541 // check the version
542 wxString token = tokenizer.GetNextToken();
543 if ( token != wxT('0') )
544 return false;
545
546 xFontName = tokenizer.GetNextToken();
547
548 // this should be the end
549 if ( tokenizer.HasMoreTokens() )
550 return false;
551
552 return FromXFontName(xFontName);
553 }
554
555 wxString wxNativeFontInfo::ToString() const
556 {
557 // 0 is the version
558 return wxString::Format(wxT("%d;%s"), 0, GetXFontName().c_str());
559 }
560
561 bool wxNativeFontInfo::FromUserString(const wxString& s)
562 {
563 return FromXFontName(s);
564 }
565
566 wxString wxNativeFontInfo::ToUserString() const
567 {
568 return GetXFontName();
569 }
570
571 bool wxNativeFontInfo::HasElements() const
572 {
573 // we suppose that the foundry is never empty, so if it is it means that we
574 // had never parsed the XLFD
575 return !fontElements[0].empty();
576 }
577
578 wxString wxNativeFontInfo::GetXFontComponent(wxXLFDField field) const
579 {
580 wxCHECK_MSG( field < wxXLFD_MAX, wxEmptyString, wxT("invalid XLFD field") );
581
582 if ( !HasElements() )
583 {
584 if ( !const_cast<wxNativeFontInfo *>(this)->FromXFontName(xFontName) )
585 return wxEmptyString;
586 }
587
588 return fontElements[field];
589 }
590
591 bool wxNativeFontInfo::FromXFontName(const wxString& fontname)
592 {
593 // TODO: we should be able to handle the font aliases here, but how?
594 wxStringTokenizer tokenizer(fontname, wxT("-"));
595
596 // skip the leading, usually empty field (font name registry)
597 if ( !tokenizer.HasMoreTokens() )
598 return false;
599
600 (void)tokenizer.GetNextToken();
601
602 for ( size_t n = 0; n < WXSIZEOF(fontElements); n++ )
603 {
604 if ( !tokenizer.HasMoreTokens() )
605 {
606 // not enough elements in the XLFD - or maybe an alias
607 return false;
608 }
609
610 wxString field = tokenizer.GetNextToken();
611 if ( !field.empty() && field != wxT('*') )
612 {
613 // we're really initialized now
614 m_isDefault = false;
615 }
616
617 fontElements[n] = field;
618 }
619
620 // this should be all
621 if ( tokenizer.HasMoreTokens() )
622 return false;
623
624 return true;
625 }
626
627 wxString wxNativeFontInfo::GetXFontName() const
628 {
629 if ( xFontName.empty() )
630 {
631 for ( size_t n = 0; n < WXSIZEOF(fontElements); n++ )
632 {
633 // replace the non specified elements with '*' except for the
634 // additional style which is usually just omitted
635 wxString elt = fontElements[n];
636 if ( elt.empty() && n != wxXLFD_ADDSTYLE )
637 {
638 elt = wxT('*');
639 }
640
641 const_cast<wxNativeFontInfo *>(this)->xFontName << wxT('-') << elt;
642 }
643 }
644
645 return xFontName;
646 }
647
648 void
649 wxNativeFontInfo::SetXFontComponent(wxXLFDField field, const wxString& value)
650 {
651 wxCHECK_RET( field < wxXLFD_MAX, wxT("invalid XLFD field") );
652
653 // this class should be initialized with a valid font spec first and only
654 // then the fields may be modified!
655 wxASSERT_MSG( !IsDefault(), wxT("can't modify an uninitialized XLFD") );
656
657 if ( !HasElements() )
658 {
659 if ( !const_cast<wxNativeFontInfo *>(this)->FromXFontName(xFontName) )
660 {
661 wxFAIL_MSG( wxT("can't set font element for invalid XLFD") );
662
663 return;
664 }
665 }
666
667 fontElements[field] = value;
668
669 // invalidate the XFLD, it doesn't correspond to the font elements any more
670 xFontName.clear();
671 }
672
673 void wxNativeFontInfo::SetXFontName(const wxString& xFontName_)
674 {
675 // invalidate the font elements, GetXFontComponent() will reparse the XLFD
676 fontElements[0].clear();
677
678 xFontName = xFontName_;
679
680 m_isDefault = false;
681 }
682
683 int wxNativeFontInfo::GetPointSize() const
684 {
685 const wxString s = GetXFontComponent(wxXLFD_POINTSIZE);
686
687 // return -1 to indicate that the size is unknown
688 long l;
689 return s.ToLong(&l) ? l : -1;
690 }
691
692 wxFontStyle wxNativeFontInfo::GetStyle() const
693 {
694 const wxString s = GetXFontComponent(wxXLFD_SLANT);
695
696 if ( s.length() != 1 )
697 {
698 // it is really unknown but we don't have any way to return it from
699 // here
700 return wxFONTSTYLE_NORMAL;
701 }
702
703 switch ( s[0].GetValue() )
704 {
705 default:
706 // again, unknown but consider normal by default
707
708 case wxT('r'):
709 return wxFONTSTYLE_NORMAL;
710
711 case wxT('i'):
712 return wxFONTSTYLE_ITALIC;
713
714 case wxT('o'):
715 return wxFONTSTYLE_SLANT;
716 }
717 }
718
719 wxFontWeight wxNativeFontInfo::GetWeight() const
720 {
721 const wxString s = GetXFontComponent(wxXLFD_WEIGHT).MakeLower();
722 if ( s.find(wxT("bold")) != wxString::npos || s == wxT("black") )
723 return wxFONTWEIGHT_BOLD;
724 else if ( s == wxT("light") )
725 return wxFONTWEIGHT_LIGHT;
726
727 return wxFONTWEIGHT_NORMAL;
728 }
729
730 bool wxNativeFontInfo::GetUnderlined() const
731 {
732 // X fonts are never underlined
733 return false;
734 }
735
736 wxString wxNativeFontInfo::GetFaceName() const
737 {
738 // wxWidgets facename probably more accurately corresponds to X family
739 return GetXFontComponent(wxXLFD_FAMILY);
740 }
741
742 wxFontFamily wxNativeFontInfo::GetFamily() const
743 {
744 // and wxWidgets family -- to X foundry, but we have to translate it to
745 // wxFontFamily somehow...
746 wxFAIL_MSG(wxT("not implemented")); // GetXFontComponent(wxXLFD_FOUNDRY);
747
748 return wxFONTFAMILY_DEFAULT;
749 }
750
751 wxFontEncoding wxNativeFontInfo::GetEncoding() const
752 {
753 // we already have the code for this but need to refactor it first
754 wxFAIL_MSG( wxT("not implemented") );
755
756 return wxFONTENCODING_MAX;
757 }
758
759 void wxNativeFontInfo::SetPointSize(int pointsize)
760 {
761 SetXFontComponent(wxXLFD_POINTSIZE, wxString::Format(wxT("%d"), pointsize));
762 }
763
764 void wxNativeFontInfo::SetStyle(wxFontStyle style)
765 {
766 wxString s;
767 switch ( style )
768 {
769 case wxFONTSTYLE_ITALIC:
770 s = wxT('i');
771 break;
772
773 case wxFONTSTYLE_SLANT:
774 s = wxT('o');
775 break;
776
777 case wxFONTSTYLE_NORMAL:
778 s = wxT('r');
779
780 default:
781 wxFAIL_MSG( wxT("unknown wxFontStyle in wxNativeFontInfo::SetStyle") );
782 return;
783 }
784
785 SetXFontComponent(wxXLFD_SLANT, s);
786 }
787
788 void wxNativeFontInfo::SetWeight(wxFontWeight weight)
789 {
790 wxString s;
791 switch ( weight )
792 {
793 case wxFONTWEIGHT_BOLD:
794 s = wxT("bold");
795 break;
796
797 case wxFONTWEIGHT_LIGHT:
798 s = wxT("light");
799 break;
800
801 case wxFONTWEIGHT_NORMAL:
802 s = wxT("medium");
803 break;
804
805 default:
806 wxFAIL_MSG( wxT("unknown wxFontWeight in wxNativeFontInfo::SetWeight") );
807 return;
808 }
809
810 SetXFontComponent(wxXLFD_WEIGHT, s);
811 }
812
813 void wxNativeFontInfo::SetUnderlined(bool WXUNUSED(underlined))
814 {
815 // can't do this under X
816 }
817
818 bool wxNativeFontInfo::SetFaceName(const wxString& facename)
819 {
820 SetXFontComponent(wxXLFD_FAMILY, facename);
821 return true;
822 }
823
824 void wxNativeFontInfo::SetFamily(wxFontFamily WXUNUSED(family))
825 {
826 // wxFontFamily -> X foundry, anyone?
827 wxFAIL_MSG( wxT("not implemented") );
828
829 // SetXFontComponent(wxXLFD_FOUNDRY, ...);
830 }
831
832 void wxNativeFontInfo::SetEncoding(wxFontEncoding encoding)
833 {
834 wxNativeEncodingInfo info;
835 if ( wxGetNativeFontEncoding(encoding, &info) )
836 {
837 SetXFontComponent(wxXLFD_ENCODING, info.xencoding);
838 SetXFontComponent(wxXLFD_REGISTRY, info.xregistry);
839 }
840 }
841
842 // ----------------------------------------------------------------------------
843 // common functions
844 // ----------------------------------------------------------------------------
845
846 bool wxGetNativeFontEncoding(wxFontEncoding encoding,
847 wxNativeEncodingInfo *info)
848 {
849 wxCHECK_MSG( info, false, wxT("bad pointer in wxGetNativeFontEncoding") );
850
851 if ( encoding == wxFONTENCODING_DEFAULT )
852 {
853 encoding = wxFont::GetDefaultEncoding();
854 }
855
856 switch ( encoding )
857 {
858 case wxFONTENCODING_ISO8859_1:
859 case wxFONTENCODING_ISO8859_2:
860 case wxFONTENCODING_ISO8859_3:
861 case wxFONTENCODING_ISO8859_4:
862 case wxFONTENCODING_ISO8859_5:
863 case wxFONTENCODING_ISO8859_6:
864 case wxFONTENCODING_ISO8859_7:
865 case wxFONTENCODING_ISO8859_8:
866 case wxFONTENCODING_ISO8859_9:
867 case wxFONTENCODING_ISO8859_10:
868 case wxFONTENCODING_ISO8859_11:
869 case wxFONTENCODING_ISO8859_12:
870 case wxFONTENCODING_ISO8859_13:
871 case wxFONTENCODING_ISO8859_14:
872 case wxFONTENCODING_ISO8859_15:
873 {
874 int cp = encoding - wxFONTENCODING_ISO8859_1 + 1;
875 info->xregistry = wxT("iso8859");
876 info->xencoding.Printf(wxT("%d"), cp);
877 }
878 break;
879
880 case wxFONTENCODING_UTF8:
881 info->xregistry = wxT("iso10646");
882 info->xencoding = wxT("*");
883 break;
884
885 case wxFONTENCODING_GB2312:
886 info->xregistry = wxT("GB2312"); // or the otherway round?
887 info->xencoding = wxT("*");
888 break;
889
890 case wxFONTENCODING_KOI8:
891 case wxFONTENCODING_KOI8_U:
892 info->xregistry = wxT("koi8");
893
894 // we don't make distinction between koi8-r, koi8-u and koi8-ru (so far)
895 info->xencoding = wxT("*");
896 break;
897
898 case wxFONTENCODING_CP1250:
899 case wxFONTENCODING_CP1251:
900 case wxFONTENCODING_CP1252:
901 case wxFONTENCODING_CP1253:
902 case wxFONTENCODING_CP1254:
903 case wxFONTENCODING_CP1255:
904 case wxFONTENCODING_CP1256:
905 case wxFONTENCODING_CP1257:
906 {
907 int cp = encoding - wxFONTENCODING_CP1250 + 1250;
908 info->xregistry = wxT("microsoft");
909 info->xencoding.Printf(wxT("cp%d"), cp);
910 }
911 break;
912
913 case wxFONTENCODING_EUC_JP:
914 case wxFONTENCODING_SHIFT_JIS:
915 info->xregistry = "jis*";
916 info->xencoding = "*";
917 break;
918
919 case wxFONTENCODING_SYSTEM:
920 info->xregistry =
921 info->xencoding = wxT("*");
922 break;
923
924 default:
925 // don't know how to translate this encoding into X fontspec
926 return false;
927 }
928
929 info->encoding = encoding;
930
931 return true;
932 }
933
934 bool wxTestFontEncoding(const wxNativeEncodingInfo& info)
935 {
936 wxString fontspec;
937 fontspec.Printf(wxT("-*-%s-*-*-*-*-*-*-*-*-*-*-%s-%s"),
938 !info.facename ? wxT("*") : info.facename.c_str(),
939 info.xregistry.c_str(),
940 info.xencoding.c_str());
941
942 return wxTestFontSpec(fontspec);
943 }
944
945 // ----------------------------------------------------------------------------
946 // X-specific functions
947 // ----------------------------------------------------------------------------
948
949 wxNativeFont wxLoadQueryNearestFont(int pointSize,
950 int family,
951 int style,
952 int weight,
953 bool underlined,
954 const wxString &facename,
955 wxFontEncoding encoding,
956 wxString* xFontName)
957 {
958 if ( encoding == wxFONTENCODING_DEFAULT )
959 {
960 encoding = wxFont::GetDefaultEncoding();
961 }
962
963 // first determine the encoding - if the font doesn't exist at all in this
964 // encoding, it's useless to do all other approximations (i.e. size,
965 // family &c don't matter much)
966 wxNativeEncodingInfo info;
967 if ( encoding == wxFONTENCODING_SYSTEM )
968 {
969 // This will always work so we don't test to save time
970 wxGetNativeFontEncoding(wxFONTENCODING_SYSTEM, &info);
971 }
972 else
973 {
974 if ( !wxGetNativeFontEncoding(encoding, &info) ||
975 !wxTestFontEncoding(info) )
976 {
977 #if wxUSE_FONTMAP
978 if ( !wxFontMapper::Get()->GetAltForEncoding(encoding, &info) )
979 #endif // wxUSE_FONTMAP
980 {
981 // unspported encoding - replace it with the default
982 //
983 // NB: we can't just return 0 from here because wxGTK code doesn't
984 // check for it (i.e. it supposes that we'll always succeed),
985 // so it would provoke a crash
986 wxGetNativeFontEncoding(wxFONTENCODING_SYSTEM, &info);
987 }
988 }
989 }
990
991 // OK, we have the correct xregistry/xencoding in info structure
992 wxNativeFont font = 0;
993
994 // if we already have the X font name, try to use it
995 if( xFontName && !xFontName->empty() )
996 {
997 //
998 // Make sure point size is correct for scale factor.
999 //
1000 wxStringTokenizer tokenizer(*xFontName, wxT("-"), wxTOKEN_RET_DELIMS);
1001 wxString newFontName;
1002
1003 for(int i = 0; i < 8; i++)
1004 newFontName += tokenizer.NextToken();
1005
1006 (void) tokenizer.NextToken();
1007
1008 newFontName += wxString::Format(wxT("%d-"), pointSize);
1009
1010 while(tokenizer.HasMoreTokens())
1011 newFontName += tokenizer.GetNextToken();
1012
1013 font = wxLoadFont(newFontName);
1014
1015 if(font)
1016 *xFontName = newFontName;
1017 }
1018
1019 if ( !font )
1020 {
1021 // search up and down by stepsize 10
1022 int max_size = pointSize + 20 * (1 + (pointSize/180));
1023 int min_size = pointSize - 20 * (1 + (pointSize/180));
1024
1025 int i, round; // counters
1026
1027 // first round: search for equal, then for smaller and for larger size
1028 // with the given weight and style
1029 int testweight = weight;
1030 int teststyle = style;
1031
1032 for ( round = 0; round < 3; round++ )
1033 {
1034 // second round: use normal weight
1035 if ( round == 1 )
1036 {
1037 if ( testweight != wxNORMAL )
1038 {
1039 testweight = wxNORMAL;
1040 }
1041 else
1042 {
1043 ++round; // fall through to third round
1044 }
1045 }
1046
1047 // third round: ... and use normal style
1048 if ( round == 2 )
1049 {
1050 if ( teststyle != wxNORMAL )
1051 {
1052 teststyle = wxNORMAL;
1053 }
1054 else
1055 {
1056 break;
1057 }
1058 }
1059 // Search for equal or smaller size (approx.)
1060 for ( i = pointSize; !font && i >= 10 && i >= min_size; i -= 10 )
1061 {
1062 font = wxLoadQueryFont(i, family, teststyle, testweight, underlined,
1063 facename, info.xregistry, info.xencoding,
1064 xFontName);
1065 }
1066
1067 // Search for larger size (approx.)
1068 for ( i = pointSize + 10; !font && i <= max_size; i += 10 )
1069 {
1070 font = wxLoadQueryFont(i, family, teststyle, testweight, underlined,
1071 facename, info.xregistry, info.xencoding,
1072 xFontName);
1073 }
1074 }
1075
1076 // Try default family
1077 if ( !font && family != wxDEFAULT )
1078 {
1079 font = wxLoadQueryFont(pointSize, wxDEFAULT, style, weight,
1080 underlined, facename,
1081 info.xregistry, info.xencoding,
1082 xFontName );
1083 }
1084
1085 // ignore size, family, style and weight but try to find font with the
1086 // given facename and encoding
1087 if ( !font )
1088 {
1089 font = wxLoadQueryFont(120, wxDEFAULT, wxNORMAL, wxNORMAL,
1090 underlined, facename,
1091 info.xregistry, info.xencoding,
1092 xFontName);
1093
1094 // ignore family as well
1095 if ( !font )
1096 {
1097 font = wxLoadQueryFont(120, wxDEFAULT, wxNORMAL, wxNORMAL,
1098 underlined, wxEmptyString,
1099 info.xregistry, info.xencoding,
1100 xFontName);
1101
1102 // if it still failed, try to get the font of any size but
1103 // with the requested encoding: this can happen if the
1104 // encoding is only available in one size which happens to be
1105 // different from 120
1106 if ( !font )
1107 {
1108 font = wxLoadQueryFont(-1, wxDEFAULT, wxNORMAL, wxNORMAL,
1109 false, wxEmptyString,
1110 info.xregistry, info.xencoding,
1111 xFontName);
1112
1113 // this should never happen as we had tested for it in the
1114 // very beginning, but if it does, do return something non
1115 // NULL or we'd crash in wxFont code
1116 if ( !font )
1117 {
1118 wxFAIL_MSG( wxT("this encoding should be available!") );
1119
1120 font = wxLoadQueryFont(-1,
1121 wxDEFAULT, wxNORMAL, wxNORMAL,
1122 false, wxEmptyString,
1123 wxT("*"), wxT("*"),
1124 xFontName);
1125 }
1126 }
1127 }
1128 }
1129 }
1130
1131 return font;
1132 }
1133
1134 // ----------------------------------------------------------------------------
1135 // private functions
1136 // ----------------------------------------------------------------------------
1137
1138 // returns true if there are any fonts matching this font spec
1139 static bool wxTestFontSpec(const wxString& fontspec)
1140 {
1141 // some X servers will fail to load this font because there are too many
1142 // matches so we must test explicitly for this
1143 if ( fontspec == wxT("-*-*-*-*-*-*-*-*-*-*-*-*-*-*") )
1144 {
1145 return true;
1146 }
1147
1148 wxNativeFont test = (wxNativeFont) g_fontHash->Get( fontspec );
1149 if (test)
1150 {
1151 return true;
1152 }
1153
1154 test = wxLoadFont(fontspec);
1155 g_fontHash->Put( fontspec, (wxObject*) test );
1156
1157 if ( test )
1158 {
1159 wxFreeFont(test);
1160
1161 return true;
1162 }
1163 else
1164 {
1165 return false;
1166 }
1167 }
1168
1169 static wxNativeFont wxLoadQueryFont(int pointSize,
1170 int family,
1171 int style,
1172 int weight,
1173 bool WXUNUSED(underlined),
1174 const wxString& facename,
1175 const wxString& xregistry,
1176 const wxString& xencoding,
1177 wxString* xFontName)
1178 {
1179 wxString xfamily;
1180 switch (family)
1181 {
1182 case wxDECORATIVE: xfamily = wxT("lucida"); break;
1183 case wxROMAN: xfamily = wxT("times"); break;
1184 case wxMODERN: xfamily = wxT("courier"); break;
1185 case wxSWISS: xfamily = wxT("helvetica"); break;
1186 case wxTELETYPE: xfamily = wxT("lucidatypewriter"); break;
1187 case wxSCRIPT: xfamily = wxT("utopia"); break;
1188 default: xfamily = wxT("*");
1189 }
1190 #if wxUSE_NANOX
1191 int xweight;
1192 switch (weight)
1193 {
1194 case wxBOLD:
1195 {
1196 xweight = MWLF_WEIGHT_BOLD;
1197 break;
1198 }
1199 case wxLIGHT:
1200 {
1201 xweight = MWLF_WEIGHT_LIGHT;
1202 break;
1203 }
1204 case wxNORMAL:
1205 {
1206 xweight = MWLF_WEIGHT_NORMAL;
1207 break;
1208 }
1209
1210 default:
1211 {
1212 xweight = MWLF_WEIGHT_DEFAULT;
1213 break;
1214 }
1215 }
1216 GR_SCREEN_INFO screenInfo;
1217 GrGetScreenInfo(& screenInfo);
1218
1219 int yPixelsPerCM = screenInfo.ydpcm;
1220
1221 // A point is 1/72 of an inch.
1222 // An inch is 2.541 cm.
1223 // So pixelHeight = (pointSize / 72) (inches) * 2.541 (for cm) * yPixelsPerCM (for pixels)
1224 // In fact pointSize is 10 * the normal point size so
1225 // divide by 10.
1226
1227 int pixelHeight = (int) ( (((float)pointSize) / 720.0) * 2.541 * (float) yPixelsPerCM) ;
1228
1229 // An alternative: assume that the screen is 72 dpi.
1230 //int pixelHeight = (int) (((float)pointSize / 720.0) * 72.0) ;
1231 //int pixelHeight = (int) ((float)pointSize / 10.0) ;
1232
1233 GR_LOGFONT logFont;
1234 logFont.lfHeight = pixelHeight;
1235 logFont.lfWidth = 0;
1236 logFont.lfEscapement = 0;
1237 logFont.lfOrientation = 0;
1238 logFont.lfWeight = xweight;
1239 logFont.lfItalic = (style == wxNORMAL ? 0 : 1) ;
1240 logFont.lfUnderline = 0;
1241 logFont.lfStrikeOut = 0;
1242 logFont.lfCharSet = MWLF_CHARSET_DEFAULT; // TODO: select appropriate one
1243 logFont.lfOutPrecision = MWLF_TYPE_DEFAULT;
1244 logFont.lfClipPrecision = 0; // Not used
1245 logFont.lfRoman = (family == wxROMAN ? 1 : 0) ;
1246 logFont.lfSerif = (family == wxSWISS ? 0 : 1) ;
1247 logFont.lfSansSerif = !logFont.lfSerif ;
1248 logFont.lfModern = (family == wxMODERN ? 1 : 0) ;
1249 logFont.lfProportional = (family == wxTELETYPE ? 0 : 1) ;
1250 logFont.lfOblique = 0;
1251 logFont.lfSmallCaps = 0;
1252 logFont.lfPitch = 0; // 0 = default
1253 strcpy(logFont.lfFaceName, facename.c_str());
1254
1255 XFontStruct* fontInfo = (XFontStruct*) malloc(sizeof(XFontStruct));
1256 fontInfo->fid = GrCreateFont((GR_CHAR*) facename.c_str(), pixelHeight, & logFont);
1257 GrGetFontInfo(fontInfo->fid, & fontInfo->info);
1258 return (wxNativeFont) fontInfo;
1259
1260 #else
1261 wxString fontSpec;
1262 if (!facename.empty())
1263 {
1264 fontSpec.Printf(wxT("-*-%s-*-*-normal-*-*-*-*-*-*-*-*-*"),
1265 facename.c_str());
1266
1267 if ( wxTestFontSpec(fontSpec) )
1268 {
1269 xfamily = facename;
1270 }
1271 //else: no such family, use default one instead
1272 }
1273
1274 wxString xstyle;
1275 switch (style)
1276 {
1277 case wxSLANT:
1278 fontSpec.Printf(wxT("-*-%s-*-o-*-*-*-*-*-*-*-*-*-*"),
1279 xfamily.c_str());
1280 if ( wxTestFontSpec(fontSpec) )
1281 {
1282 xstyle = wxT("o");
1283 break;
1284 }
1285 // fall through - try wxITALIC now
1286
1287 case wxITALIC:
1288 fontSpec.Printf(wxT("-*-%s-*-i-*-*-*-*-*-*-*-*-*-*"),
1289 xfamily.c_str());
1290 if ( wxTestFontSpec(fontSpec) )
1291 {
1292 xstyle = wxT("i");
1293 }
1294 else if ( style == wxITALIC ) // and not wxSLANT
1295 {
1296 // try wxSLANT
1297 fontSpec.Printf(wxT("-*-%s-*-o-*-*-*-*-*-*-*-*-*-*"),
1298 xfamily.c_str());
1299 if ( wxTestFontSpec(fontSpec) )
1300 {
1301 xstyle = wxT("o");
1302 }
1303 else
1304 {
1305 // no italic, no slant - leave default
1306 xstyle = wxT("*");
1307 }
1308 }
1309 break;
1310
1311 default:
1312 wxFAIL_MSG(wxT("unknown font style"));
1313 // fall back to normal
1314
1315 case wxNORMAL:
1316 xstyle = wxT("r");
1317 break;
1318 }
1319
1320 wxString xweight;
1321 switch (weight)
1322 {
1323 case wxBOLD:
1324 {
1325 fontSpec.Printf(wxT("-*-%s-bold-*-*-*-*-*-*-*-*-*-*-*"),
1326 xfamily.c_str());
1327 if ( wxTestFontSpec(fontSpec) )
1328 {
1329 xweight = wxT("bold");
1330 break;
1331 }
1332 fontSpec.Printf(wxT("-*-%s-heavy-*-*-*-*-*-*-*-*-*-*-*"),
1333 xfamily.c_str());
1334 if ( wxTestFontSpec(fontSpec) )
1335 {
1336 xweight = wxT("heavy");
1337 break;
1338 }
1339 fontSpec.Printf(wxT("-*-%s-extrabold-*-*-*-*-*-*-*-*-*-*-*"),
1340 xfamily.c_str());
1341 if ( wxTestFontSpec(fontSpec) )
1342 {
1343 xweight = wxT("extrabold");
1344 break;
1345 }
1346 fontSpec.Printf(wxT("-*-%s-demibold-*-*-*-*-*-*-*-*-*-*-*"),
1347 xfamily.c_str());
1348 if ( wxTestFontSpec(fontSpec) )
1349 {
1350 xweight = wxT("demibold");
1351 break;
1352 }
1353 fontSpec.Printf(wxT("-*-%s-black-*-*-*-*-*-*-*-*-*-*-*"),
1354 xfamily.c_str());
1355 if ( wxTestFontSpec(fontSpec) )
1356 {
1357 xweight = wxT("black");
1358 break;
1359 }
1360 fontSpec.Printf(wxT("-*-%s-ultrablack-*-*-*-*-*-*-*-*-*-*-*"),
1361 xfamily.c_str());
1362 if ( wxTestFontSpec(fontSpec) )
1363 {
1364 xweight = wxT("ultrablack");
1365 break;
1366 }
1367 }
1368 break;
1369 case wxLIGHT:
1370 {
1371 fontSpec.Printf(wxT("-*-%s-light-*-*-*-*-*-*-*-*-*-*-*"),
1372 xfamily.c_str());
1373 if ( wxTestFontSpec(fontSpec) )
1374 {
1375 xweight = wxT("light");
1376 break;
1377 }
1378 fontSpec.Printf(wxT("-*-%s-thin-*-*-*-*-*-*-*-*-*-*-*"),
1379 xfamily.c_str());
1380 if ( wxTestFontSpec(fontSpec) )
1381 {
1382 xweight = wxT("thin");
1383 break;
1384 }
1385 }
1386 break;
1387 case wxNORMAL:
1388 {
1389 fontSpec.Printf(wxT("-*-%s-medium-*-*-*-*-*-*-*-*-*-*-*"),
1390 xfamily.c_str());
1391 if ( wxTestFontSpec(fontSpec) )
1392 {
1393 xweight = wxT("medium");
1394 break;
1395 }
1396 fontSpec.Printf(wxT("-*-%s-normal-*-*-*-*-*-*-*-*-*-*-*"),
1397 xfamily.c_str());
1398 if ( wxTestFontSpec(fontSpec) )
1399 {
1400 xweight = wxT("normal");
1401 break;
1402 }
1403 fontSpec.Printf(wxT("-*-%s-regular-*-*-*-*-*-*-*-*-*-*-*"),
1404 xfamily.c_str());
1405 if ( wxTestFontSpec(fontSpec) )
1406 {
1407 xweight = wxT("regular");
1408 break;
1409 }
1410 xweight = wxT("*");
1411 }
1412 break;
1413 default: xweight = wxT("*"); break;
1414 }
1415
1416 // if pointSize is -1, don't specify any
1417 wxString sizeSpec;
1418 if ( pointSize == -1 )
1419 {
1420 sizeSpec = wxT('*');
1421 }
1422 else
1423 {
1424 sizeSpec.Printf(wxT("%d"), pointSize);
1425 }
1426
1427 // construct the X font spec from our data
1428 fontSpec.Printf(wxT("-*-%s-%s-%s-normal-*-*-%s-*-*-*-*-%s-%s"),
1429 xfamily.c_str(), xweight.c_str(), xstyle.c_str(),
1430 sizeSpec.c_str(), xregistry.c_str(), xencoding.c_str());
1431
1432 if( xFontName )
1433 *xFontName = fontSpec;
1434
1435 return wxLoadFont(fontSpec);
1436 #endif
1437 // wxUSE_NANOX
1438 }
1439
1440 // ----------------------------------------------------------------------------
1441 // wxFontModule
1442 // ----------------------------------------------------------------------------
1443
1444 class wxFontModule : public wxModule
1445 {
1446 public:
1447 bool OnInit();
1448 void OnExit();
1449
1450 private:
1451 DECLARE_DYNAMIC_CLASS(wxFontModule)
1452 };
1453
1454 IMPLEMENT_DYNAMIC_CLASS(wxFontModule, wxModule)
1455
1456 bool wxFontModule::OnInit()
1457 {
1458 g_fontHash = new wxHashTable( wxKEY_STRING );
1459
1460 return true;
1461 }
1462
1463 void wxFontModule::OnExit()
1464 {
1465 wxDELETE(g_fontHash);
1466 }
1467
1468 #endif // GTK 2.0/1.x