do not use preprocessor macros in interface headers; doxygen doesn't know about prepr...
[wxWidgets.git] / interface / wx / font.h
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: font.h
3 // Purpose: interface of wxFont
4 // Author: wxWidgets team
5 // RCS-ID: $Id$
6 // Licence: wxWindows license
7 /////////////////////////////////////////////////////////////////////////////
8
9
10 /**
11 Standard font families: these may be used only for the font creation, it
12 doesn't make sense to query an existing font for its font family as,
13 especially if the font had been created from a native font description, it
14 may be unknown.
15 */
16 enum wxFontFamily
17 {
18 wxFONTFAMILY_DEFAULT = wxDEFAULT, //!< Chooses a default font.
19 wxFONTFAMILY_DECORATIVE = wxDECORATIVE, //!< A decorative font.
20 wxFONTFAMILY_ROMAN = wxROMAN, //!< A formal, serif font.
21 wxFONTFAMILY_SCRIPT = wxSCRIPT, //!< A handwriting font.
22 wxFONTFAMILY_SWISS = wxSWISS, //!< A sans-serif font.
23 wxFONTFAMILY_MODERN = wxMODERN, //!< A fixed pitch font.
24 wxFONTFAMILY_TELETYPE = wxTELETYPE, //!< A teletype font.
25 wxFONTFAMILY_MAX,
26 wxFONTFAMILY_UNKNOWN = wxFONTFAMILY_MAX
27 };
28
29 /**
30 Font styles.
31 */
32 enum wxFontStyle
33 {
34 wxFONTSTYLE_NORMAL = wxNORMAL,
35 wxFONTSTYLE_ITALIC = wxITALIC,
36 wxFONTSTYLE_SLANT = wxSLANT,
37 wxFONTSTYLE_MAX
38 };
39
40 /**
41 Font weights.
42 */
43 enum wxFontWeight
44 {
45 wxFONTWEIGHT_NORMAL = wxNORMAL, //!< Normal font.
46 wxFONTWEIGHT_LIGHT = wxLIGHT, //!< Light font.
47 wxFONTWEIGHT_BOLD = wxBOLD, //!< Bold font.
48 wxFONTWEIGHT_MAX
49 };
50
51 /**
52 The font flag bits for the new font ctor accepting one combined flags word.
53 */
54 enum wxFontFlag
55 {
56 /// no special flags: font with default weight/slant/anti-aliasing
57 wxFONTFLAG_DEFAULT = 0,
58
59 /// slant flags (default: no slant)
60 wxFONTFLAG_ITALIC = 1 << 0,
61 wxFONTFLAG_SLANT = 1 << 1,
62
63 /// weight flags (default: medium)
64 wxFONTFLAG_LIGHT = 1 << 2,
65 wxFONTFLAG_BOLD = 1 << 3,
66
67 /// anti-aliasing flag: force on or off (default: the current system default)
68 wxFONTFLAG_ANTIALIASED = 1 << 4,
69 wxFONTFLAG_NOT_ANTIALIASED = 1 << 5,
70
71 /// underlined/strikethrough flags (default: no lines)
72 wxFONTFLAG_UNDERLINED = 1 << 6,
73 wxFONTFLAG_STRIKETHROUGH = 1 << 7,
74
75 /// the mask of all currently used flags
76 wxFONTFLAG_MASK = wxFONTFLAG_ITALIC |
77 wxFONTFLAG_SLANT |
78 wxFONTFLAG_LIGHT |
79 wxFONTFLAG_BOLD |
80 wxFONTFLAG_ANTIALIASED |
81 wxFONTFLAG_NOT_ANTIALIASED |
82 wxFONTFLAG_UNDERLINED |
83 wxFONTFLAG_STRIKETHROUGH
84 };
85
86
87
88 /**
89 Font encodings.
90 */
91 enum wxFontEncoding
92 {
93 /// Default system encoding.
94 wxFONTENCODING_SYSTEM = -1, // system default
95
96 /// Default application encoding.
97 wxFONTENCODING_DEFAULT, // current default encoding
98
99 // ISO8859 standard defines a number of single-byte charsets
100 wxFONTENCODING_ISO8859_1, //!< West European (Latin1)
101 wxFONTENCODING_ISO8859_2, //!< Central and East European (Latin2)
102 wxFONTENCODING_ISO8859_3, //!< Esperanto (Latin3)
103 wxFONTENCODING_ISO8859_4, //!< Baltic (old) (Latin4)
104 wxFONTENCODING_ISO8859_5, //!< Cyrillic
105 wxFONTENCODING_ISO8859_6, //!< Arabic
106 wxFONTENCODING_ISO8859_7, //!< Greek
107 wxFONTENCODING_ISO8859_8, //!< Hebrew
108 wxFONTENCODING_ISO8859_9, //!< Turkish (Latin5)
109 wxFONTENCODING_ISO8859_10, //!< Variation of Latin4 (Latin6)
110 wxFONTENCODING_ISO8859_11, //!< Thai
111 wxFONTENCODING_ISO8859_12, //!< doesn't exist currently, but put it
112 //!< here anyhow to make all ISO8859
113 //!< consecutive numbers
114 wxFONTENCODING_ISO8859_13, //!< Baltic (Latin7)
115 wxFONTENCODING_ISO8859_14, //!< Latin8
116 wxFONTENCODING_ISO8859_15, //!< Latin9 (a.k.a. Latin0, includes euro)
117 wxFONTENCODING_ISO8859_MAX,
118
119 // Cyrillic charset soup (see http://czyborra.com/charsets/cyrillic.html)
120 wxFONTENCODING_KOI8, //!< KOI8 Russian
121 wxFONTENCODING_KOI8_U, //!< KOI8 Ukrainian
122 wxFONTENCODING_ALTERNATIVE, //!< same as MS-DOS CP866
123 wxFONTENCODING_BULGARIAN, //!< used under Linux in Bulgaria
124
125 // what would we do without Microsoft? They have their own encodings
126 // for DOS
127 wxFONTENCODING_CP437, //!< original MS-DOS codepage
128 wxFONTENCODING_CP850, //!< CP437 merged with Latin1
129 wxFONTENCODING_CP852, //!< CP437 merged with Latin2
130 wxFONTENCODING_CP855, //!< another cyrillic encoding
131 wxFONTENCODING_CP866, //!< and another one
132 // and for Windows
133 wxFONTENCODING_CP874, //!< WinThai
134 wxFONTENCODING_CP932, //!< Japanese (shift-JIS)
135 wxFONTENCODING_CP936, //!< Chinese simplified (GB)
136 wxFONTENCODING_CP949, //!< Korean (Hangul charset)
137 wxFONTENCODING_CP950, //!< Chinese (traditional - Big5)
138 wxFONTENCODING_CP1250, //!< WinLatin2
139 wxFONTENCODING_CP1251, //!< WinCyrillic
140 wxFONTENCODING_CP1252, //!< WinLatin1
141 wxFONTENCODING_CP1253, //!< WinGreek (8859-7)
142 wxFONTENCODING_CP1254, //!< WinTurkish
143 wxFONTENCODING_CP1255, //!< WinHebrew
144 wxFONTENCODING_CP1256, //!< WinArabic
145 wxFONTENCODING_CP1257, //!< WinBaltic (same as Latin 7)
146 wxFONTENCODING_CP12_MAX,
147
148 wxFONTENCODING_UTF7, //!< UTF-7 Unicode encoding
149 wxFONTENCODING_UTF8, //!< UTF-8 Unicode encoding
150 wxFONTENCODING_EUC_JP, //!< Extended Unix Codepage for Japanese
151 wxFONTENCODING_UTF16BE, //!< UTF-16 Big Endian Unicode encoding
152 wxFONTENCODING_UTF16LE, //!< UTF-16 Little Endian Unicode encoding
153 wxFONTENCODING_UTF32BE, //!< UTF-32 Big Endian Unicode encoding
154 wxFONTENCODING_UTF32LE, // UTF-32 Little Endian Unicode encoding
155
156 wxFONTENCODING_MACROMAN, //!< the standard mac encodings
157 wxFONTENCODING_MACJAPANESE,
158 wxFONTENCODING_MACCHINESETRAD,
159 wxFONTENCODING_MACKOREAN,
160 wxFONTENCODING_MACARABIC,
161 wxFONTENCODING_MACHEBREW,
162 wxFONTENCODING_MACGREEK,
163 wxFONTENCODING_MACCYRILLIC,
164 wxFONTENCODING_MACDEVANAGARI,
165 wxFONTENCODING_MACGURMUKHI,
166 wxFONTENCODING_MACGUJARATI,
167 wxFONTENCODING_MACORIYA,
168 wxFONTENCODING_MACBENGALI,
169 wxFONTENCODING_MACTAMIL,
170 wxFONTENCODING_MACTELUGU,
171 wxFONTENCODING_MACKANNADA,
172 wxFONTENCODING_MACMALAJALAM,
173 wxFONTENCODING_MACSINHALESE,
174 wxFONTENCODING_MACBURMESE,
175 wxFONTENCODING_MACKHMER,
176 wxFONTENCODING_MACTHAI,
177 wxFONTENCODING_MACLAOTIAN,
178 wxFONTENCODING_MACGEORGIAN,
179 wxFONTENCODING_MACARMENIAN,
180 wxFONTENCODING_MACCHINESESIMP,
181 wxFONTENCODING_MACTIBETAN,
182 wxFONTENCODING_MACMONGOLIAN,
183 wxFONTENCODING_MACETHIOPIC,
184 wxFONTENCODING_MACCENTRALEUR,
185 wxFONTENCODING_MACVIATNAMESE,
186 wxFONTENCODING_MACARABICEXT,
187 wxFONTENCODING_MACSYMBOL,
188 wxFONTENCODING_MACDINGBATS,
189 wxFONTENCODING_MACTURKISH,
190 wxFONTENCODING_MACCROATIAN,
191 wxFONTENCODING_MACICELANDIC,
192 wxFONTENCODING_MACROMANIAN,
193 wxFONTENCODING_MACCELTIC,
194 wxFONTENCODING_MACGAELIC,
195 wxFONTENCODING_MACKEYBOARD,
196
197 // more CJK encodings (for historical reasons some are already declared
198 // above)
199 wxFONTENCODING_ISO2022_JP, //!< ISO-2022-JP JIS encoding
200
201 wxFONTENCODING_MAX, //!< highest enumerated encoding value
202
203 wxFONTENCODING_MACMIN = wxFONTENCODING_MACROMAN ,
204 wxFONTENCODING_MACMAX = wxFONTENCODING_MACKEYBOARD ,
205
206 // aliases for endian-dependent UTF encodings
207 wxFONTENCODING_UTF16, //!< native UTF-16
208 wxFONTENCODING_UTF32, //!< native UTF-32
209
210 /// Alias for the native Unicode encoding on this platform
211 /// (this is used by wxEncodingConverter and wxUTFFile only for now)
212 wxFONTENCODING_UNICODE,
213
214 // alternative names for Far Eastern encodings
215 // Chinese
216 wxFONTENCODING_GB2312 = wxFONTENCODING_CP936, //!< Simplified Chinese
217 wxFONTENCODING_BIG5 = wxFONTENCODING_CP950, //!< Traditional Chinese
218
219 // Japanese (see http://zsigri.tripod.com/fontboard/cjk/jis.html)
220 wxFONTENCODING_SHIFT_JIS = wxFONTENCODING_CP932 //!< Shift JIS
221 };
222
223
224
225 /**
226 @class wxFont
227
228 A font is an object which determines the appearance of text.
229 Fonts are used for drawing text to a device context, and setting the appearance
230 of a window's text.
231
232 This class uses @ref overview_refcount "reference counting and copy-on-write"
233 internally so that assignments between two instances of this class are very
234 cheap. You can therefore use actual objects instead of pointers without
235 efficiency problems. If an instance of this class is changed it will create
236 its own data internally so that other instances, which previously shared the
237 data using the reference counting, are not affected.
238
239 You can retrieve the current system font settings with wxSystemSettings.
240
241 @library{wxcore}
242 @category{gdi}
243
244 @stdobjects
245 ::wxNullFont, ::wxNORMAL_FONT, ::wxSMALL_FONT, ::wxITALIC_FONT, ::wxSWISS_FONT
246
247 @see @ref overview_font, wxDC::SetFont, wxDC::DrawText,
248 wxDC::GetTextExtent, wxFontDialog, wxSystemSettings
249 */
250 class wxFont : public wxGDIObject
251 {
252 public:
253 //@{
254 /**
255 Default ctor.
256 */
257 wxFont();
258
259 /**
260 Copy constructor, uses @ref overview_refcount "reference counting".
261 */
262 wxFont(const wxFont& font);
263
264 /**
265 Creates a font object with the specified attributes.
266
267 @param pointSize
268 Size in points.
269 @param family
270 Font family, a generic way of referring to fonts without specifying actual
271 facename. One of the ::wxFontFamily enumeration values.
272 @param style
273 One of wxFONTSTYLE_NORMAL, wxFONTSTYLE_SLANT and wxFONTSTYLE_ITALIC.
274 @param weight
275 Font weight, sometimes also referred to as font boldness. One of
276 the ::wxFontWeight enumeration values.
277 @param underline
278 The value can be @true or @false.
279 At present this has an effect on Windows and Motif 2.x only.
280 @param faceName
281 An optional string specifying the actual typeface to be used.
282 If it is an empty string, a default typeface will be chosen based on the family.
283 @param encoding
284 An encoding which may be one of the enumeration values of ::wxFontEncoding.
285 Briefly these can be summed up as:
286 <TABLE>
287 <TR><TD>wxFONTENCODING_SYSTEM</TD><TD>Default system encoding.</TD></TR>
288 <TR><TD>wxFONTENCODING_DEFAULT</TD><TD>
289 Default application encoding: this
290 is the encoding set by calls to
291 SetDefaultEncoding and which may be set to,
292 say, KOI8 to create all fonts by default with KOI8 encoding. Initially, the
293 default application encoding is the same as default system encoding.</TD></TR>
294 <TR><TD>wxFONTENCODING_ISO8859_1...15</TD><TD>ISO8859 encodings.</TD></TR>
295 <TR><TD>wxFONTENCODING_KOI8</TD><TD>The standard Russian encoding for Internet.</TD></TR>
296 <TR><TD>wxFONTENCODING_CP1250...1252</TD><TD>Windows encodings similar to ISO8859 (but not identical).</TD></TR>
297 </TABLE>
298 If the specified encoding isn't available, no font is created
299 (see also font encoding overview).
300
301 @remarks If the desired font does not exist, the closest match will be
302 chosen. Under Windows, only scalable TrueType fonts are used.
303 */
304 wxFont(int pointSize, wxFontFamily family, wxFontStyle style,
305 wxFontWeight weight,
306 bool underline = false,
307 const wxString& faceName = wxEmptyString,
308 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
309
310 /**
311 Creates a font object with the specified attributes.
312
313 @param pixelSize
314 Size in pixels: this is directly supported only under MSW currently
315 where this constructor can be used directly, under other platforms a
316 font with the closest size to the given one is found using binary search
317 and the static New method must be used.
318 @param family
319 Font family, a generic way of referring to fonts without specifying actual
320 facename. One of ::wxFontFamily enumeration values.
321 @param style
322 One of wxFONTSTYLE_NORMAL, wxFONTSTYLE_SLANT and wxFONTSTYLE_ITALIC.
323 @param weight
324 Font weight, sometimes also referred to as font boldness.
325 One of the ::wxFontWeight enumeration values.
326 @param underline
327 The value can be @true or @false.
328 At present this has an effect on Windows and Motif 2.x only.
329 @param faceName
330 An optional string specifying the actual typeface to be used.
331 If it is an empty string, a default typeface will be chosen based on the family.
332 @param encoding
333 An encoding which may be one of the enumeration values of ::wxFontEncoding.
334 Briefly these can be summed up as:
335 <TABLE>
336 <TR><TD>wxFONTENCODING_SYSTEM</TD><TD>Default system encoding.</TD></TR>
337 <TR><TD>wxFONTENCODING_DEFAULT</TD><TD>
338 Default application encoding: this
339 is the encoding set by calls to
340 SetDefaultEncoding and which may be set to,
341 say, KOI8 to create all fonts by default with KOI8 encoding. Initially, the
342 default application encoding is the same as default system encoding.</TD></TR>
343 <TR><TD>wxFONTENCODING_ISO8859_1...15</TD><TD>ISO8859 encodings.</TD></TR>
344 <TR><TD>wxFONTENCODING_KOI8</TD><TD>The standard Russian encoding for Internet.</TD></TR>
345 <TR><TD>wxFONTENCODING_CP1250...1252</TD><TD>Windows encodings similar to ISO8859 (but not identical).</TD></TR>
346 </TABLE>
347 If the specified encoding isn't available, no font is created
348 (see also font encoding overview).
349
350 @remarks If the desired font does not exist, the closest match will be
351 chosen. Under Windows, only scalable TrueType fonts are used.
352 */
353 wxFont(const wxSize& pixelSize, wxFontFamily family,
354 wxFontStyle style, wxFontWeight weight,
355 bool underline = false,
356 const wxString& faceName = wxEmptyString,
357 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
358 //@}
359
360 /**
361 Destructor.
362
363 See @ref overview_refcount_destruct "reference-counted object destruction"
364 for more info.
365
366 @remarks Although all remaining fonts are deleted when the application
367 exits, the application should try to clean up all fonts
368 itself. This is because wxWidgets cannot know if a
369 pointer to the font object is stored in an application
370 data structure, and there is a risk of double deletion.
371 */
372 virtual ~wxFont();
373
374 /**
375 Returns the current application's default encoding.
376
377 @see @ref overview_fontencoding, SetDefaultEncoding()
378 */
379 static wxFontEncoding GetDefaultEncoding();
380
381 /**
382 Returns the typeface name associated with the font, or the empty string if
383 there is no typeface information.
384
385 @see SetFaceName()
386 */
387 virtual wxString GetFaceName() const;
388
389 /**
390 Gets the font family. See SetFamily() for a list of valid
391 family identifiers.
392
393 @see SetFamily()
394 */
395 virtual wxFontFamily GetFamily() const;
396
397 /**
398 Returns the platform-dependent string completely describing this font.
399 Returned string is always non-empty.
400
401 Note that the returned string is not meant to be shown or edited by the user: a
402 typical use of this function is for serializing in string-form a wxFont object.
403
404 @see SetNativeFontInfo(),GetNativeFontInfoUserDesc()
405 */
406 wxString GetNativeFontInfoDesc() const;
407
408 /**
409 Returns a user-friendly string for this font object.
410 Returned string is always non-empty.
411
412 Some examples of the formats of returned strings (which are platform-dependent)
413 are in SetNativeFontInfoUserDesc().
414
415 @see GetNativeFontInfoDesc()
416 */
417 wxString GetNativeFontInfoUserDesc() const;
418
419 /**
420 Gets the point size.
421
422 @see SetPointSize()
423 */
424 virtual int GetPointSize() const;
425
426 /**
427 Gets the font style. See wxFontStyle for a list of valid styles.
428
429 @see SetStyle()
430 */
431 virtual wxFontStyle GetStyle() const;
432
433 /**
434 Returns @true if the font is underlined, @false otherwise.
435
436 @see SetUnderlined()
437 */
438 virtual bool GetUnderlined() const;
439
440 /**
441 Gets the font weight. See wxFontWeight for a list of valid weight identifiers.
442
443 @see SetWeight()
444 */
445 virtual wxFontWeight GetWeight() const;
446
447 /**
448 Returns @true if the font is a fixed width (or monospaced) font,
449 @false if it is a proportional one or font is invalid.
450 */
451 virtual bool IsFixedWidth() const;
452
453 /**
454 Returns @true if this object is a valid font, @false otherwise.
455 */
456 virtual bool IsOk() const;
457
458 //@{
459 /**
460 These functions take the same parameters as
461 @ref wxFont::wxFont "wxFont constructors" and return a new font
462 object allocated on the heap.
463
464 Using @c New() is currently the only way to directly create a font with
465 the given size in pixels on platforms other than wxMSW.
466 */
467 static wxFont* New(int pointSize, wxFontFamily family, wxFontStyle style,
468 wxFontWeight weight,
469 bool underline = false,
470 const wxString& faceName = wxEmptyString,
471 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
472 static wxFont* New(int pointSize, wxFontFamily family,
473 int flags = wxFONTFLAG_DEFAULT,
474 const wxString& faceName = wxEmptyString,
475 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
476 static wxFont* New(const wxSize& pixelSize,
477 wxFontFamily family,
478 wxFontStyle style,
479 wxFontWeight weight,
480 bool underline = false,
481 const wxString& faceName = wxEmptyString,
482 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
483 static wxFont* New(const wxSize& pixelSize,
484 wxFontFamily family,
485 int flags = wxFONTFLAG_DEFAULT,
486 const wxString& faceName = wxEmptyString,
487 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
488 //@}
489
490 /**
491 Sets the default font encoding.
492
493 @see @ref overview_fontencoding, GetDefaultEncoding()
494 */
495 static void SetDefaultEncoding(wxFontEncoding encoding);
496
497 /**
498 Sets the facename for the font.
499 Returns @true if the given face name exists; @false otherwise.
500
501 @param faceName
502 A valid facename, which should be on the end-user's system.
503
504 @remarks To avoid portability problems, don't rely on a specific face,
505 but specify the font family instead or as well.
506 A suitable font will be found on the end-user's system.
507 If both the family and the facename are specified,
508 wxWidgets will first search for the specific face, and
509 then for a font belonging to the same family.
510
511 @see GetFaceName(), SetFamily()
512 */
513 virtual bool SetFaceName(const wxString& faceName);
514
515 /**
516 Sets the font family.
517
518 @param family
519 One of the ::wxFontFamily values.
520
521 @see GetFamily(), SetFaceName()
522 */
523 virtual void SetFamily(wxFontFamily family);
524
525 /**
526 Creates the font corresponding to the given native font description string
527 which must have been previously returned by GetNativeFontInfoDesc().
528
529 If the string is invalid, font is unchanged.
530 This function is typically used for de-serializing a wxFont object
531 previously saved in a string-form.
532
533 @return @true if the creation was successful.
534
535 @see SetNativeFontInfoUserDesc()
536 */
537 bool SetNativeFontInfo(const wxString& info);
538
539 /**
540 Creates the font corresponding to the given native font description string and
541 returns @true if the creation was successful.
542
543 Unlike SetNativeFontInfo(), this function accepts strings which are user-friendly.
544 Examples of accepted string formats are:
545
546 @beginTable
547 @hdr3col{platform, generic syntax, example}
548 @row3col{wxGTK2, @c [FACE-NAME] [bold] [oblique|italic] [POINTSIZE], Monospace bold 10}
549 @row3col{wxMSW, @c [light|bold] [italic] [FACE-NAME] [POINTSIZE] [ENCODING], Tahoma 10 WINDOWS-1252}
550 @endTable
551
552 @todo add an example for wxMac
553
554 For more detailed information about the allowed syntaxes you can look at the
555 documentation of the native API used for font-rendering
556 (e.g. @c pango_font_description_from_string on GTK).
557
558 @see SetNativeFontInfo()
559 */
560 bool SetNativeFontInfoUserDesc(const wxString& info);
561
562 /**
563 Sets the point size.
564
565 @param pointSize
566 Size in points.
567
568 @see GetPointSize()
569 */
570 virtual void SetPointSize(int pointSize);
571
572 /**
573 Sets the font style.
574
575 @param style
576 One of the ::wxFontStyle enumeration values.
577
578 @see GetStyle()
579 */
580 virtual void SetStyle(wxFontStyle style);
581
582 /**
583 Sets underlining.
584
585 @param underlined
586 @true to underline, @false otherwise.
587
588 @see GetUnderlined()
589 */
590 virtual void SetUnderlined(bool underlined);
591
592 /**
593 Sets the font weight.
594
595 @param weight
596 One of the ::wxFontWeight values.
597
598 @see GetWeight()
599 */
600 virtual void SetWeight(wxFontWeight weight);
601
602 /**
603 Inequality operator.
604
605 See @ref overview_refcount_equality "reference-counted object comparison" for
606 more info.
607 */
608 bool operator!=(const wxFont& font) const;
609
610 /**
611 Equality operator.
612
613 See @ref overview_refcount_equality "reference-counted object comparison" for
614 more info.
615 */
616 bool operator==(const wxFont& font) const;
617
618 /**
619 Assignment operator, using @ref overview_refcount "reference counting".
620 */
621 wxFont& operator =(const wxFont& font);
622 };
623
624
625 /**
626 An empty wxFont.
627 */
628 wxFont wxNullFont;
629
630 /**
631 Equivalent to wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT).
632 */
633 wxFont wxNORMAL_FONT;
634
635 /**
636 A font using the wxFONTFAMILY_SWISS family and 2 points smaller than
637 ::wxNORMAL_FONT.
638 */
639 wxFont wxSMALL_FONT;
640
641 /**
642 A font using the wxFONTFAMILY_ROMAN family and wxFONTSTYLE_ITALIC style and
643 of the same size of ::wxNORMAL_FONT.
644 */
645 wxFont wxITALIC_FONT;
646
647 /**
648 A font identic to ::wxNORMAL_FONT except for the family used which is
649 wxFONTFAMILY_SWISS.
650 */
651 wxFont wxSWISS_FONT;
652
653
654 /**
655 @class wxFontList
656
657 A font list is a list containing all fonts which have been created.
658 There is only one instance of this class: ::wxTheFontList.
659
660 Use this object to search for a previously created font of the desired type
661 and create it if not already found.
662
663 In some windowing systems, the font may be a scarce resource, so it is best to
664 reuse old resources if possible. When an application finishes, all fonts will
665 be deleted and their resources freed, eliminating the possibility of 'memory
666 leaks'.
667
668 @library{wxcore}
669 @category{gdi}
670
671 @see wxFont
672 */
673 class wxFontList : public wxList
674 {
675 public:
676 /**
677 Constructor. The application should not construct its own font list:
678 use the object pointer ::wxTheFontList.
679 */
680 wxFontList();
681
682 /**
683 Finds a font of the given specification, or creates one and adds it to the
684 list. See the @ref wxFont "wxFont constructor" for details of the arguments.
685 */
686 wxFont* FindOrCreateFont(int point_size, wxFontFamily family, wxFontStyle style,
687 wxFontWeight weight, bool underline = false,
688 const wxString& facename = wxEmptyString,
689 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
690 };
691
692
693 /**
694 The global wxFontList instance.
695 */
696 wxFontList* wxTheFontList;
697
698
699 // ============================================================================
700 // Global functions/macros
701 // ============================================================================
702
703 /** @addtogroup group_funcmacro_misc */
704 //@{
705
706 /**
707 Converts string to a wxFont best represented by the given string. Returns
708 @true on success.
709
710 @see wxToString(const wxFont&)
711
712 @header{wx/font.h}
713 */
714 bool wxFromString(const wxString& string, wxFont* font);
715
716 /**
717 Converts the given wxFont into a string.
718
719 @see wxFromString(const wxString&, wxFont*)
720
721 @header{wx/font.h}
722 */
723 wxString wxToString(const wxFont& font);
724
725 //@}
726