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1 \section{\class{wxFont}}\label{wxfont}
2
3 A font is an object which determines the appearance of text. Fonts are
4 used for drawing text to a device context, and setting the appearance of
5 a window's text.
6
7 \wxheading{Derived from}
8
9 \helpref{wxGDIObject}{wxgdiobject}\\
10 \helpref{wxObject}{wxobject}
11
12 \wxheading{Include files}
13
14 <wx/font.h>
15
16 \wxheading{Constants}
17
18 \begin{verbatim}
19 enum wxFontEncoding
20 {
21 wxFONTENCODING_SYSTEM = -1, // system default
22 wxFONTENCODING_DEFAULT, // current default encoding
23
24 // ISO8859 standard defines a number of single-byte charsets
25 wxFONTENCODING_ISO8859_1, // West European (Latin1)
26 wxFONTENCODING_ISO8859_2, // Central and East European (Latin2)
27 wxFONTENCODING_ISO8859_3, // Esperanto (Latin3)
28 wxFONTENCODING_ISO8859_4, // Baltic (old) (Latin4)
29 wxFONTENCODING_ISO8859_5, // Cyrillic
30 wxFONTENCODING_ISO8859_6, // Arabic
31 wxFONTENCODING_ISO8859_7, // Greek
32 wxFONTENCODING_ISO8859_8, // Hebrew
33 wxFONTENCODING_ISO8859_9, // Turkish (Latin5)
34 wxFONTENCODING_ISO8859_10, // Variation of Latin4 (Latin6)
35 wxFONTENCODING_ISO8859_11, // Thai
36 wxFONTENCODING_ISO8859_12, // doesn't exist currently, but put it
37 // here anyhow to make all ISO8859
38 // consecutive numbers
39 wxFONTENCODING_ISO8859_13, // Baltic (Latin7)
40 wxFONTENCODING_ISO8859_14, // Latin8
41 wxFONTENCODING_ISO8859_15, // Latin9 (a.k.a. Latin0, includes euro)
42 wxFONTENCODING_ISO8859_MAX,
43
44 // Cyrillic charset soup (see http://czyborra.com/charsets/cyrillic.html)
45 wxFONTENCODING_KOI8, // we don't support any of KOI8 variants
46 wxFONTENCODING_ALTERNATIVE, // same as MS-DOS CP866
47 wxFONTENCODING_BULGARIAN, // used under Linux in Bulgaria
48
49 // what would we do without Microsoft? They have their own encodings
50 // for DOS
51 wxFONTENCODING_CP437, // original MS-DOS codepage
52 wxFONTENCODING_CP850, // CP437 merged with Latin1
53 wxFONTENCODING_CP852, // CP437 merged with Latin2
54 wxFONTENCODING_CP855, // another cyrillic encoding
55 wxFONTENCODING_CP866, // and another one
56 // and for Windows
57 wxFONTENCODING_CP874, // WinThai
58 wxFONTENCODING_CP1250, // WinLatin2
59 wxFONTENCODING_CP1251, // WinCyrillic
60 wxFONTENCODING_CP1252, // WinLatin1
61 wxFONTENCODING_CP1253, // WinGreek (8859-7)
62 wxFONTENCODING_CP1254, // WinTurkish
63 wxFONTENCODING_CP1255, // WinHebrew
64 wxFONTENCODING_CP1256, // WinArabic
65 wxFONTENCODING_CP1257, // WinBaltic (same as Latin 7)
66 wxFONTENCODING_CP12_MAX,
67
68 wxFONTENCODING_UTF7, // UTF-7 Unicode encoding
69 wxFONTENCODING_UTF8, // UTF-8 Unicode encoding
70
71 wxFONTENCODING_UNICODE, // Unicode - currently used only by
72 // wxEncodingConverter class
73
74 wxFONTENCODING_MAX
75 };
76 \end{verbatim}
77
78 \wxheading{Predefined objects}
79
80 Objects:
81
82 {\bf wxNullFont}
83
84 Pointers:
85
86 {\bf wxNORMAL\_FONT\\
87 wxSMALL\_FONT\\
88 wxITALIC\_FONT\\
89 wxSWISS\_FONT}
90
91 \wxheading{See also}
92
93 \helpref{wxFont overview}{wxfontoverview}, \helpref{wxDC::SetFont}{wxdcsetfont},\rtfsp
94 \helpref{wxDC::DrawText}{wxdcdrawtext}, \helpref{wxDC::GetTextExtent}{wxdcgettextextent},\rtfsp
95 \helpref{wxFontDialog}{wxfontdialog}
96
97 \latexignore{\rtfignore{\wxheading{Members}}}
98
99 \membersection{wxFont::wxFont}\label{wxfontconstr}
100
101 \func{}{wxFont}{\void}
102
103 Default constructor.
104
105 \func{}{wxFont}{\param{int}{ pointSize}, \param{int}{ family}, \param{int}{ style}, \param{int}{ weight},
106 \param{const bool}{ underline = FALSE}, \param{const wxString\& }{faceName = ""},
107 \param{wxFontEncoding }{encoding = wxFONTENCODING\_DEFAULT}}
108
109 Creates a font object (see \helpref{font encoding
110 overview}{wxfontencodingoverview} for the meaning of the last parameter).
111
112 \wxheading{Parameters}
113
114 \docparam{pointSize}{Size in points.}
115
116 \docparam{family}{Font family, a generic way of referring to fonts without specifying actual facename. One of:
117
118 \twocolwidtha{5cm}
119 \begin{twocollist}\itemsep=0pt
120 \twocolitem{{\bf wxDEFAULT}}{Chooses a default font.}
121 \twocolitem{{\bf wxDECORATIVE}}{A decorative font.}
122 \twocolitem{{\bf wxROMAN}}{A formal, serif font.}
123 \twocolitem{{\bf wxSCRIPT}}{A handwriting font.}
124 \twocolitem{{\bf wxSWISS}}{A sans-serif font.}
125 \twocolitem{{\bf wxMODERN}}{A fixed pitch font.}
126 \end{twocollist}}
127
128 \docparam{style}{One of {\bf wxNORMAL}, {\bf wxSLANT} and {\bf wxITALIC}.}
129
130 \docparam{weight}{One of {\bf wxNORMAL}, {\bf wxLIGHT} and {\bf wxBOLD}.}
131
132 \docparam{underline}{The value can be TRUE or FALSE. At present this has an effect on Windows only.}
133
134 \docparam{faceName}{An optional string specifying the actual typeface to be used. If the empty string,
135 a default typeface will chosen based on the family.}
136
137 \docparam{encoding}{An encoding which may be one of
138 \twocolwidtha{5cm}
139 \begin{twocollist}\itemsep=0pt
140 \twocolitem{{\bf wxFONTENCODING\_SYSTEM}}{Default system encoding.}
141 \twocolitem{{\bf wxFONTENCODING\_DEFAULT}}{Default application encoding: this
142 is the encoding set by calls to
143 \helpref{SetDefaultEncoding}{wxfontsetdefaultencoding} and which may be set to,
144 say, KOI8 to create all fonts by default with KOI8 encoding. Initially, the
145 default application encoding is the same as default system encoding.}
146 \twocolitem{{\bf wxFONTENCODING\_ISO8859\_1...15}}{ISO8859 encodings.}
147 \twocolitem{{\bf wxFONTENCODING\_KOI8}}{The standard Russian encoding for Internet.}
148 \twocolitem{{\bf wxFONTENCODING\_CP1250...1252}}{Windows encodings similar to ISO8859 (but not identical).}
149 \end{twocollist}
150 If the specified encoding isn't available, no font is created.
151 }
152
153 \wxheading{Remarks}
154
155 If the desired font does not exist, the closest match will be chosen.
156 Under Windows, only scalable TrueType fonts are used.
157
158 See also \helpref{wxDC::SetFont}{wxdcsetfont}, \helpref{wxDC::DrawText}{wxdcdrawtext}
159 and \helpref{wxDC::GetTextExtent}{wxdcgettextextent}.
160
161 \membersection{wxFont::\destruct{wxFont}}
162
163 \func{}{\destruct{wxFont}}{\void}
164
165 Destructor.
166
167 \wxheading{Remarks}
168
169 The destructor may not delete the underlying font object of the native windowing
170 system, since wxFont uses a reference counting system for efficiency.
171
172 Although all remaining fonts are deleted when the application exits,
173 the application should try to clean up all fonts itself. This is because
174 wxWindows cannot know if a pointer to the font object is stored in an
175 application data structure, and there is a risk of double deletion.
176
177 \membersection{wxFont::IsFixedWidth}\label{wxfontisfixedwidth}
178
179 \constfunc{bool}{IsFixedWidth}{\void}
180
181 Returns {\tt TRUE} if the font is a fixed width (or monospaced) font,
182 {\tt FALSE} if it is a proportional one or font is invalid.
183
184 \membersection{wxFont::GetDefaultEncoding}\label{wxfontgetdefaultencoding}
185
186 \func{static wxFontEncoding}{GetDefaultEncoding}{\void}
187
188 Returns the current applications default encoding.
189
190 \wxheading{See also}
191
192 \helpref{Font encoding overview}{wxfontencodingoverview},
193 \helpref{SetDefaultEncoding}{wxfontsetdefaultencoding}
194
195 \membersection{wxFont::GetFaceName}\label{wxfontgetfacename}
196
197 \constfunc{wxString}{GetFaceName}{\void}
198
199 Returns the typeface name associated with the font, or the empty string if there is no
200 typeface information.
201
202 \wxheading{See also}
203
204 \helpref{wxFont::SetFaceName}{wxfontsetfacename}
205
206 \membersection{wxFont::GetFamily}\label{wxfontgetfamily}
207
208 \constfunc{int}{GetFamily}{\void}
209
210 Gets the font family. See \helpref{wxFont::wxFont}{wxfontconstr} for a list of valid
211 family identifiers.
212
213 \wxheading{See also}
214
215 \helpref{wxFont::SetFamily}{wxfontsetfamily}
216
217 \membersection{wxFont::GetNativeFontInfoDesc}\label{wxfontgetnativefontinfodesc}
218
219 \constfunc{wxString}{GetNativeFontInfoDesc}{\void}
220
221 Returns the platform-dependent string completely describing this font or an
222 empty string if the font wasn't constructed using the native font description.
223
224 \wxheading{See also}
225
226 \helpref{wxFont::SetNativeFontInfo}{wxfontsetnativefontinfo}
227
228 \membersection{wxFont::GetPointSize}\label{wxfontgetpointsize}
229
230 \constfunc{int}{GetPointSize}{\void}
231
232 Gets the point size.
233
234 \wxheading{See also}
235
236 \helpref{wxFont::SetPointSize}{wxfontsetpointsize}
237
238 \membersection{wxFont::GetStyle}\label{wxfontgetstyle}
239
240 \constfunc{int}{GetStyle}{\void}
241
242 Gets the font style. See \helpref{wxFont::wxFont}{wxfontconstr} for a list of valid
243 styles.
244
245 \wxheading{See also}
246
247 \helpref{wxFont::SetStyle}{wxfontsetstyle}
248
249 \membersection{wxFont::GetUnderlined}\label{wxfontgetunderlined}
250
251 \constfunc{bool}{GetUnderlined}{\void}
252
253 Returns TRUE if the font is underlined, FALSE otherwise.
254
255 \wxheading{See also}
256
257 \helpref{wxFont::SetUnderlined}{wxfontsetunderlined}
258
259 \membersection{wxFont::GetWeight}\label{wxfontgetweight}
260
261 \constfunc{int}{GetWeight}{\void}
262
263 Gets the font weight. See \helpref{wxFont::wxFont}{wxfontconstr} for a list of valid
264 weight identifiers.
265
266 \wxheading{See also}
267
268 \helpref{wxFont::SetWeight}{wxfontsetweight}
269
270 \membersection{wxFont::Ok}\label{wxfontok}
271
272 \constfunc{bool}{Ok}{\void}
273
274 Returns {\tt TRUE} if this object is a valid font, {\tt FALSE} otherwise.
275
276 \membersection{wxFont::SetDefaultEncoding}\label{wxfontsetdefaultencoding}
277
278 \func{static void}{SetDefaultEncoding}{\param{wxFontEncoding }{encoding}}
279
280 Sets the default font encoding.
281
282 \wxheading{See also}
283
284 \helpref{Font encoding overview}{wxfontencodingoverview},
285 \helpref{GetDefaultEncoding}{wxfontgetdefaultencoding}
286
287 \membersection{wxFont::SetFaceName}\label{wxfontsetfacename}
288
289 \func{void}{SetFaceName}{\param{const wxString\& }{faceName}}
290
291 Sets the facename for the font.
292
293 \wxheading{Parameters}
294
295 \docparam{faceName}{A valid facename, which should be on the end-user's system.}
296
297 \wxheading{Remarks}
298
299 To avoid portability problems, don't rely on a specific face, but specify the font family
300 instead or as well. A suitable font will be found on the end-user's system. If both the
301 family and the facename are specified, wxWindows will first search for the specific face,
302 and then for a font belonging to the same family.
303
304 \wxheading{See also}
305
306 \helpref{wxFont::GetFaceName}{wxfontgetfacename}, \helpref{wxFont::SetFamily}{wxfontsetfamily}
307
308 \membersection{wxFont::SetFamily}\label{wxfontsetfamily}
309
310 \func{void}{SetFamily}{\param{int}{ family}}
311
312 Sets the font family.
313
314 \wxheading{Parameters}
315
316 \docparam{family}{One of:
317
318 \twocolwidtha{5cm}
319 \begin{twocollist}\itemsep=0pt
320 \twocolitem{{\bf wxDEFAULT}}{Chooses a default font.}
321 \twocolitem{{\bf wxDECORATIVE}}{A decorative font.}
322 \twocolitem{{\bf wxROMAN}}{A formal, serif font.}
323 \twocolitem{{\bf wxSCRIPT}}{A handwriting font.}
324 \twocolitem{{\bf wxSWISS}}{A sans-serif font.}
325 \twocolitem{{\bf wxMODERN}}{A fixed pitch font.}
326 \end{twocollist}}
327
328 \wxheading{See also}
329
330 \helpref{wxFont::GetFamily}{wxfontgetfamily}, \helpref{wxFont::SetFaceName}{wxfontsetfacename}
331
332 \membersection{wxFont::SetNativeFontInfo}\label{wxfontsetnativefontinfo}
333
334 \func{void}{SetNativeFontInfo}{\param{const wxString\& }{info}}
335
336 Creates the font corresponding to the given native font description string
337 which must have been previously returned by
338 \helpref{GetNativeFontInfoDesc}{wxfontgetnativefontinfodesc}. If the string is
339 invalid, font is unchanged.
340
341 \membersection{wxFont::SetPointSize}\label{wxfontsetpointsize}
342
343 \func{void}{SetPointSize}{\param{int}{ pointSize}}
344
345 Sets the point size.
346
347 \wxheading{Parameters}
348
349 \docparam{pointSize}{Size in points.}
350
351 \wxheading{See also}
352
353 \helpref{wxFont::GetPointSize}{wxfontgetpointsize}
354
355 \membersection{wxFont::SetStyle}\label{wxfontsetstyle}
356
357 \func{void}{SetStyle}{\param{int}{ style}}
358
359 Sets the font style.
360
361 \wxheading{Parameters}
362
363 \docparam{style}{One of {\bf wxNORMAL}, {\bf wxSLANT} and {\bf wxITALIC}.}
364
365 \wxheading{See also}
366
367 \helpref{wxFont::GetStyle}{wxfontgetstyle}
368
369 \membersection{wxFont::SetUnderlined}\label{wxfontsetunderlined}
370
371 \func{void}{SetUnderlined}{\param{const bool}{ underlined}}
372
373 Sets underlining.
374
375 \wxheading{Parameters}
376
377 \docparam{underlining}{TRUE to underline, FALSE otherwise.}
378
379 \wxheading{See also}
380
381 \helpref{wxFont::GetUnderlined}{wxfontgetunderlined}
382
383 \membersection{wxFont::SetWeight}\label{wxfontsetweight}
384
385 \func{void}{SetWeight}{\param{int}{ weight}}
386
387 Sets the font weight.
388
389 \wxheading{Parameters}
390
391 \docparam{weight}{One of {\bf wxNORMAL}, {\bf wxLIGHT} and {\bf wxBOLD}.}
392
393 \wxheading{See also}
394
395 \helpref{wxFont::GetWeight}{wxfontgetweight}
396
397 \membersection{wxFont::operator $=$}\label{wxfontassignment}
398
399 \func{wxFont\&}{operator $=$}{\param{const wxFont\& }{font}}
400
401 Assignment operator, using reference counting. Returns a reference
402 to `this'.
403
404 \membersection{wxFont::operator $==$}\label{wxfontequals}
405
406 \func{bool}{operator $==$}{\param{const wxFont\& }{font}}
407
408 Equality operator. Two fonts are equal if they contain pointers
409 to the same underlying font data. It does not compare each attribute,
410 so two indefontdently-created fonts using the same parameters will
411 fail the test.
412
413 \membersection{wxFont::operator $!=$}\label{wxfontnotequals}
414
415 \func{bool}{operator $!=$}{\param{const wxFont\& }{font}}
416
417 Inequality operator. Two fonts are not equal if they contain pointers
418 to different underlying font data. It does not compare each attribute.
419
420