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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 #ifdef WORDS_BIGENDIAN
208 wxFONTENCODING_UTF16 = wxFONTENCODING_UTF16BE, // native UTF-16
209 wxFONTENCODING_UTF32 = wxFONTENCODING_UTF32BE, // native UTF-32
210 #else // WORDS_BIGENDIAN
211 wxFONTENCODING_UTF16 = wxFONTENCODING_UTF16LE, // native UTF-16
212 wxFONTENCODING_UTF32 = wxFONTENCODING_UTF32LE, // native UTF-32
213 #endif // WORDS_BIGENDIAN
214
215 // alias for the native Unicode encoding on this platform
216 // (this is used by wxEncodingConverter and wxUTFFile only for now)
217 #if SIZEOF_WCHAR_T == 2
218 wxFONTENCODING_UNICODE = wxFONTENCODING_UTF16,
219 #else // SIZEOF_WCHAR_T == 4
220 wxFONTENCODING_UNICODE = wxFONTENCODING_UTF32,
221 #endif
222
223 // alternative names for Far Eastern encodings
224 // Chinese
225 wxFONTENCODING_GB2312 = wxFONTENCODING_CP936, // Simplified Chinese
226 wxFONTENCODING_BIG5 = wxFONTENCODING_CP950, // Traditional Chinese
227
228 // Japanese (see http://zsigri.tripod.com/fontboard/cjk/jis.html)
229 wxFONTENCODING_SHIFT_JIS = wxFONTENCODING_CP932 // Shift JIS
230 };
231
232
233
234 /**
235 @class wxFont
236
237 A font is an object which determines the appearance of text.
238 Fonts are used for drawing text to a device context, and setting the appearance
239 of a window's text.
240
241 This class uses @ref overview_refcount "reference counting and copy-on-write"
242 internally so that assignments between two instances of this class are very
243 cheap. You can therefore use actual objects instead of pointers without
244 efficiency problems. If an instance of this class is changed it will create
245 its own data internally so that other instances, which previously shared the
246 data using the reference counting, are not affected.
247
248 You can retrieve the current system font settings with wxSystemSettings.
249
250 @library{wxcore}
251 @category{gdi}
252
253 @stdobjects
254 ::wxNullFont, ::wxNORMAL_FONT, ::wxSMALL_FONT, ::wxITALIC_FONT, ::wxSWISS_FONT
255
256 @see @ref overview_font, wxDC::SetFont, wxDC::DrawText,
257 wxDC::GetTextExtent, wxFontDialog, wxSystemSettings
258 */
259 class wxFont : public wxGDIObject
260 {
261 public:
262 //@{
263 /**
264 Default ctor.
265 */
266 wxFont();
267
268 /**
269 Copy constructor, uses @ref overview_refcount "reference counting".
270 */
271 wxFont(const wxFont& font);
272
273 /**
274 Creates a font object with the specified attributes.
275
276 @param pointSize
277 Size in points.
278 @param family
279 Font family, a generic way of referring to fonts without specifying actual
280 facename. One of the ::wxFontFamily enumeration values.
281 @param style
282 One of wxFONTSTYLE_NORMAL, wxFONTSTYLE_SLANT and wxFONTSTYLE_ITALIC.
283 @param weight
284 Font weight, sometimes also referred to as font boldness. One of
285 the ::wxFontWeight enumeration values.
286 @param underline
287 The value can be @true or @false.
288 At present this has an effect on Windows and Motif 2.x only.
289 @param faceName
290 An optional string specifying the actual typeface to be used.
291 If it is an empty string, a default typeface will be chosen based on the family.
292 @param encoding
293 An encoding which may be one of the enumeration values of ::wxFontEncoding.
294 Briefly these can be summed up as:
295 <TABLE>
296 <TR><TD>wxFONTENCODING_SYSTEM</TD><TD>Default system encoding.</TD></TR>
297 <TR><TD>wxFONTENCODING_DEFAULT</TD><TD>
298 Default application encoding: this
299 is the encoding set by calls to
300 SetDefaultEncoding and which may be set to,
301 say, KOI8 to create all fonts by default with KOI8 encoding. Initially, the
302 default application encoding is the same as default system encoding.</TD></TR>
303 <TR><TD>wxFONTENCODING_ISO8859_1...15</TD><TD>ISO8859 encodings.</TD></TR>
304 <TR><TD>wxFONTENCODING_KOI8</TD><TD>The standard Russian encoding for Internet.</TD></TR>
305 <TR><TD>wxFONTENCODING_CP1250...1252</TD><TD>Windows encodings similar to ISO8859 (but not identical).</TD></TR>
306 </TABLE>
307 If the specified encoding isn't available, no font is created
308 (see also font encoding overview).
309
310 @remarks If the desired font does not exist, the closest match will be
311 chosen. Under Windows, only scalable TrueType fonts are used.
312 */
313 wxFont(int pointSize, wxFontFamily family, int style,
314 wxFontWeight weight,
315 const bool underline = false,
316 const wxString& faceName = "",
317 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
318
319 /**
320 Creates a font object with the specified attributes.
321
322 @param pixelSize
323 Size in pixels: this is directly supported only under MSW currently
324 where this constructor can be used directly, under other platforms a
325 font with the closest size to the given one is found using binary search
326 and the static New method must be used.
327 @param family
328 Font family, a generic way of referring to fonts without specifying actual
329 facename. One of ::wxFontFamily enumeration values.
330 @param style
331 One of wxFONTSTYLE_NORMAL, wxFONTSTYLE_SLANT and wxFONTSTYLE_ITALIC.
332 @param weight
333 Font weight, sometimes also referred to as font boldness.
334 One of the ::wxFontWeight enumeration values.
335 @param underline
336 The value can be @true or @false.
337 At present this has an effect on Windows and Motif 2.x only.
338 @param faceName
339 An optional string specifying the actual typeface to be used.
340 If it is an empty string, a default typeface will be chosen based on the family.
341 @param encoding
342 An encoding which may be one of the enumeration values of ::wxFontEncoding.
343 Briefly these can be summed up as:
344 <TABLE>
345 <TR><TD>wxFONTENCODING_SYSTEM</TD><TD>Default system encoding.</TD></TR>
346 <TR><TD>wxFONTENCODING_DEFAULT</TD><TD>
347 Default application encoding: this
348 is the encoding set by calls to
349 SetDefaultEncoding and which may be set to,
350 say, KOI8 to create all fonts by default with KOI8 encoding. Initially, the
351 default application encoding is the same as default system encoding.</TD></TR>
352 <TR><TD>wxFONTENCODING_ISO8859_1...15</TD><TD>ISO8859 encodings.</TD></TR>
353 <TR><TD>wxFONTENCODING_KOI8</TD><TD>The standard Russian encoding for Internet.</TD></TR>
354 <TR><TD>wxFONTENCODING_CP1250...1252</TD><TD>Windows encodings similar to ISO8859 (but not identical).</TD></TR>
355 </TABLE>
356 If the specified encoding isn't available, no font is created
357 (see also font encoding overview).
358
359 @remarks If the desired font does not exist, the closest match will be
360 chosen. Under Windows, only scalable TrueType fonts are used.
361 */
362 wxFont(const wxSize& pixelSize, wxFontFamily family,
363 int style, wxFontWeight weight,
364 const bool underline = false,
365 const wxString& faceName = "",
366 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
367 //@}
368
369 /**
370 Destructor.
371
372 See @ref overview_refcount_destruct "reference-counted object destruction"
373 for more info.
374
375 @remarks Although all remaining fonts are deleted when the application
376 exits, the application should try to clean up all fonts
377 itself. This is because wxWidgets cannot know if a
378 pointer to the font object is stored in an application
379 data structure, and there is a risk of double deletion.
380 */
381 virtual ~wxFont();
382
383 /**
384 Returns the current application's default encoding.
385
386 @see @ref overview_fontencoding, SetDefaultEncoding()
387 */
388 static wxFontEncoding GetDefaultEncoding();
389
390 /**
391 Returns the typeface name associated with the font, or the empty string if
392 there is no typeface information.
393
394 @see SetFaceName()
395 */
396 virtual wxString GetFaceName() const;
397
398 /**
399 Gets the font family. See SetFamily() for a list of valid
400 family identifiers.
401
402 @see SetFamily()
403 */
404 wxFontFamily GetFamily() const;
405
406 /**
407 Returns the platform-dependent string completely describing this font.
408 Returned string is always non-empty.
409
410 Note that the returned string is not meant to be shown or edited by the user: a
411 typical use of this function is for serializing in string-form a wxFont object.
412
413 @see SetNativeFontInfo(),GetNativeFontInfoUserDesc()
414 */
415 wxString GetNativeFontInfoDesc() const;
416
417 /**
418 Returns a user-friendly string for this font object.
419 Returned string is always non-empty.
420
421 Some examples of the formats of returned strings (which are platform-dependent)
422 are in SetNativeFontInfoUserDesc().
423
424 @see GetNativeFontInfoDesc()
425 */
426 wxString GetNativeFontInfoUserDesc() const;
427
428 /**
429 Gets the point size.
430
431 @see SetPointSize()
432 */
433 virtual int GetPointSize() const;
434
435 /**
436 Gets the font style. See wxFontStyle for a list of valid styles.
437
438 @see SetStyle()
439 */
440 wxFontStyle GetStyle() const;
441
442 /**
443 Returns @true if the font is underlined, @false otherwise.
444
445 @see SetUnderlined()
446 */
447 virtual bool GetUnderlined() const;
448
449 /**
450 Gets the font weight. See wxFontWeight for a list of valid weight identifiers.
451
452 @see SetWeight()
453 */
454 wxFontWeight GetWeight() const;
455
456 /**
457 Returns @true if the font is a fixed width (or monospaced) font,
458 @false if it is a proportional one or font is invalid.
459 */
460 virtual bool IsFixedWidth() const;
461
462 /**
463 Returns @true if this object is a valid font, @false otherwise.
464 */
465 virtual bool IsOk() const;
466
467 //@{
468 /**
469 These functions take the same parameters as
470 @ref wxFont::wxFont "wxFont constructors" and return a new font
471 object allocated on the heap.
472
473 Using @c New() is currently the only way to directly create a font with
474 the given size in pixels on platforms other than wxMSW.
475 */
476 static wxFont* New(int pointSize, wxFontFamily family, int style,
477 wxFontWeight weight,
478 const bool underline = false,
479 const wxString& faceName = "",
480 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
481 static wxFont* New(int pointSize, wxFontFamily family,
482 int flags = wxFONTFLAG_DEFAULT,
483 const wxString& faceName = "",
484 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
485 static wxFont* New(const wxSize& pixelSize,
486 wxFontFamily family,
487 int style,
488 wxFontWeight weight,
489 const bool underline = false,
490 const wxString& faceName = "",
491 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
492 static wxFont* New(const wxSize& pixelSize,
493 wxFontFamily family,
494 int flags = wxFONTFLAG_DEFAULT,
495 const wxString& faceName = "",
496 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
497 //@}
498
499 /**
500 Sets the default font encoding.
501
502 @see @ref overview_fontencoding, GetDefaultEncoding()
503 */
504 static void SetDefaultEncoding(wxFontEncoding encoding);
505
506 /**
507 Sets the facename for the font.
508 Returns @true if the given face name exists; @false otherwise.
509
510 @param faceName
511 A valid facename, which should be on the end-user's system.
512
513 @remarks To avoid portability problems, don't rely on a specific face,
514 but specify the font family instead or as well.
515 A suitable font will be found on the end-user's system.
516 If both the family and the facename are specified,
517 wxWidgets will first search for the specific face, and
518 then for a font belonging to the same family.
519
520 @see GetFaceName(), SetFamily()
521 */
522 virtual bool SetFaceName(const wxString& faceName);
523
524 /**
525 Sets the font family.
526
527 @param family
528 One of the ::wxFontFamily values.
529
530 @see GetFamily(), SetFaceName()
531 */
532 void SetFamily(wxFontFamily family);
533
534 /**
535 Creates the font corresponding to the given native font description string
536 which must have been previously returned by GetNativeFontInfoDesc().
537
538 If the string is invalid, font is unchanged.
539 This function is typically used for de-serializing a wxFont object
540 previously saved in a string-form.
541
542 @return @true if the creation was successful.
543
544 @see SetNativeFontInfoUserDesc()
545 */
546 bool SetNativeFontInfo(const wxString& info);
547
548 /**
549 Creates the font corresponding to the given native font description string and
550 returns @true if the creation was successful.
551
552 Unlike SetNativeFontInfo(), this function accepts strings which are user-friendly.
553 Examples of accepted string formats are:
554
555 @beginTable
556 @hdr3col{platform, generic syntax, example}
557 @row3col{wxGTK2, @c [FACE-NAME] [bold] [oblique|italic] [POINTSIZE], Monospace bold 10}
558 @row3col{wxMSW, @c [light|bold] [italic] [FACE-NAME] [POINTSIZE] [ENCODING], Tahoma 10 WINDOWS-1252}
559 @endTable
560
561 @todo add an example for wxMac
562
563 For more detailed information about the allowed syntaxes you can look at the
564 documentation of the native API used for font-rendering
565 (e.g. @c pango_font_description_from_string on GTK).
566
567 @see SetNativeFontInfo()
568 */
569 bool SetNativeFontInfoUserDesc(const wxString& info);
570
571 /**
572 Sets the point size.
573
574 @param pointSize
575 Size in points.
576
577 @see GetPointSize()
578 */
579 virtual void SetPointSize(int pointSize);
580
581 /**
582 Sets the font style.
583
584 @param style
585 One of the ::wxFontStyle enumeration values.
586
587 @see GetStyle()
588 */
589 void SetStyle(wxFontStyle style);
590
591 /**
592 Sets underlining.
593
594 @param underlined
595 @true to underline, @false otherwise.
596
597 @see GetUnderlined()
598 */
599 void SetUnderlined(const bool underlined);
600
601 /**
602 Sets the font weight.
603
604 @param weight
605 One of the ::wxFontWeight values.
606
607 @see GetWeight()
608 */
609 void SetWeight(wxFontWeight weight);
610
611 /**
612 Inequality operator.
613
614 See @ref overview_refcount_equality "reference-counted object comparison" for
615 more info.
616 */
617 bool operator !=(const wxFont& font);
618
619 /**
620 Equality operator.
621
622 See @ref overview_refcount_equality "reference-counted object comparison" for
623 more info.
624 */
625 bool operator ==(const wxFont& font);
626
627 /**
628 Assignment operator, using @ref overview_refcount "reference counting".
629 */
630 wxFont& operator =(const wxFont& font);
631 };
632
633
634 /**
635 An empty wxFont.
636 */
637 wxFont wxNullFont;
638
639 /**
640 Equivalent to wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT).
641 */
642 wxFont wxNORMAL_FONT;
643
644 /**
645 A font using the wxFONTFAMILY_SWISS family and 2 points smaller than
646 ::wxNORMAL_FONT.
647 */
648 wxFont wxSMALL_FONT;
649
650 /**
651 A font using the wxFONTFAMILY_ROMAN family and wxFONTSTYLE_ITALIC style and
652 of the same size of ::wxNORMAL_FONT.
653 */
654 wxFont wxITALIC_FONT;
655
656 /**
657 A font identic to ::wxNORMAL_FONT except for the family used which is
658 wxFONTFAMILY_SWISS.
659 */
660 wxFont wxSWISS_FONT;
661
662
663 /**
664 @class wxFontList
665
666 A font list is a list containing all fonts which have been created.
667 There is only one instance of this class: ::wxTheFontList.
668
669 Use this object to search for a previously created font of the desired type
670 and create it if not already found.
671
672 In some windowing systems, the font may be a scarce resource, so it is best to
673 reuse old resources if possible. When an application finishes, all fonts will
674 be deleted and their resources freed, eliminating the possibility of 'memory
675 leaks'.
676
677 @library{wxcore}
678 @category{gdi}
679
680 @see wxFont
681 */
682 class wxFontList : public wxList
683 {
684 public:
685 /**
686 Constructor. The application should not construct its own font list:
687 use the object pointer ::wxTheFontList.
688 */
689 wxFontList();
690
691 /**
692 Finds a font of the given specification, or creates one and adds it to the
693 list. See the @ref wxFont "wxFont constructor" for details of the arguments.
694 */
695 wxFont* FindOrCreateFont(int point_size, int family, int style,
696 int weight,
697 bool underline = false,
698 const wxString& facename = NULL,
699 wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
700 };
701
702
703 /**
704 The global wxFontList instance.
705 */
706 wxFontList* wxTheFontList;
707
708
709 // ============================================================================
710 // Global functions/macros
711 // ============================================================================
712
713 /** @ingroup group_funcmacro_misc */
714 //@{
715
716 /**
717 Converts string to a wxFont best represented by the given string. Returns
718 @true on success.
719
720 @see wxToString(const wxFont&)
721
722 @header{wx/font.h}
723 */
724 bool wxFromString(const wxString& string, wxFont* font);
725
726 /**
727 Converts the given wxFont into a string.
728
729 @see wxFromString(const wxString&, wxFont*)
730
731 @header{wx/font.h}
732 */
733 wxString wxToString(const wxFont& font);
734
735 //@}
736