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1\section{\class{wxFont}}\label{wxfont}
2
3A font is an object which determines the appearance of text. Fonts are
4used for drawing text to a device context, and setting the appearance of
5a window's text.
6
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7You can retrieve the current system font settings with \helpref{wxSystemSettings}{wxsystemsettings}.
8
9\helpref{wxSystemSettings}{wxsystemsettings}
10
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11\wxheading{Derived from}
12
13\helpref{wxGDIObject}{wxgdiobject}\\
14\helpref{wxObject}{wxobject}
15
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16\wxheading{Include files}
17
18<wx/font.h>
19
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20\wxheading{Constants}
21
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22The font flags which can be used during the font creation are:
23\begin{verbatim}
24enum
25{
26 // no special flags: font with default weight/slant/anti-aliasing
27 wxFONTFLAG_DEFAULT = 0,
28
29 // slant flags (default: no slant)
30 wxFONTFLAG_ITALIC = 1 << 0,
31 wxFONTFLAG_SLANT = 1 << 1,
32
33 // weight flags (default: medium)
34 wxFONTFLAG_LIGHT = 1 << 2,
35 wxFONTFLAG_BOLD = 1 << 3,
36
37 // anti-aliasing flag: force on or off (default: the current system default)
38 wxFONTFLAG_ANTIALIASED = 1 << 4,
39 wxFONTFLAG_NOT_ANTIALIASED = 1 << 5,
40
41 // underlined/strikethrough flags (default: no lines)
42 wxFONTFLAG_UNDERLINED = 1 << 6,
43 wxFONTFLAG_STRIKETHROUGH = 1 << 7,
44};
45\end{verbatim}
46
47The known font encodings are:
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48\begin{verbatim}
49enum wxFontEncoding
50{
51 wxFONTENCODING_SYSTEM = -1, // system default
52 wxFONTENCODING_DEFAULT, // current default encoding
53
54 // ISO8859 standard defines a number of single-byte charsets
55 wxFONTENCODING_ISO8859_1, // West European (Latin1)
56 wxFONTENCODING_ISO8859_2, // Central and East European (Latin2)
57 wxFONTENCODING_ISO8859_3, // Esperanto (Latin3)
58 wxFONTENCODING_ISO8859_4, // Baltic (old) (Latin4)
59 wxFONTENCODING_ISO8859_5, // Cyrillic
60 wxFONTENCODING_ISO8859_6, // Arabic
61 wxFONTENCODING_ISO8859_7, // Greek
62 wxFONTENCODING_ISO8859_8, // Hebrew
63 wxFONTENCODING_ISO8859_9, // Turkish (Latin5)
64 wxFONTENCODING_ISO8859_10, // Variation of Latin4 (Latin6)
65 wxFONTENCODING_ISO8859_11, // Thai
66 wxFONTENCODING_ISO8859_12, // doesn't exist currently, but put it
67 // here anyhow to make all ISO8859
68 // consecutive numbers
69 wxFONTENCODING_ISO8859_13, // Baltic (Latin7)
70 wxFONTENCODING_ISO8859_14, // Latin8
71 wxFONTENCODING_ISO8859_15, // Latin9 (a.k.a. Latin0, includes euro)
72 wxFONTENCODING_ISO8859_MAX,
73
74 // Cyrillic charset soup (see http://czyborra.com/charsets/cyrillic.html)
75 wxFONTENCODING_KOI8, // we don't support any of KOI8 variants
76 wxFONTENCODING_ALTERNATIVE, // same as MS-DOS CP866
77 wxFONTENCODING_BULGARIAN, // used under Linux in Bulgaria
78
79 // what would we do without Microsoft? They have their own encodings
80 // for DOS
81 wxFONTENCODING_CP437, // original MS-DOS codepage
82 wxFONTENCODING_CP850, // CP437 merged with Latin1
83 wxFONTENCODING_CP852, // CP437 merged with Latin2
84 wxFONTENCODING_CP855, // another cyrillic encoding
85 wxFONTENCODING_CP866, // and another one
86 // and for Windows
87 wxFONTENCODING_CP874, // WinThai
88 wxFONTENCODING_CP1250, // WinLatin2
89 wxFONTENCODING_CP1251, // WinCyrillic
90 wxFONTENCODING_CP1252, // WinLatin1
91 wxFONTENCODING_CP1253, // WinGreek (8859-7)
92 wxFONTENCODING_CP1254, // WinTurkish
93 wxFONTENCODING_CP1255, // WinHebrew
94 wxFONTENCODING_CP1256, // WinArabic
95 wxFONTENCODING_CP1257, // WinBaltic (same as Latin 7)
96 wxFONTENCODING_CP12_MAX,
97
98 wxFONTENCODING_UTF7, // UTF-7 Unicode encoding
99 wxFONTENCODING_UTF8, // UTF-8 Unicode encoding
100
101 wxFONTENCODING_UNICODE, // Unicode - currently used only by
102 // wxEncodingConverter class
103
104 wxFONTENCODING_MAX
105};
106\end{verbatim}
107
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108\wxheading{Predefined objects}
109
110Objects:
111
112{\bf wxNullFont}
113
114Pointers:
115
116{\bf wxNORMAL\_FONT\\
117wxSMALL\_FONT\\
118wxITALIC\_FONT\\
119wxSWISS\_FONT}
120
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121\wxheading{See also}
122
123\helpref{wxFont overview}{wxfontoverview}, \helpref{wxDC::SetFont}{wxdcsetfont},\rtfsp
124\helpref{wxDC::DrawText}{wxdcdrawtext}, \helpref{wxDC::GetTextExtent}{wxdcgettextextent},\rtfsp
8161ba08 125\helpref{wxFontDialog}{wxfontdialog}, \helpref{wxSystemSettings}{wxsystemsettings}
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126
127\latexignore{\rtfignore{\wxheading{Members}}}
128
129\membersection{wxFont::wxFont}\label{wxfontconstr}
130
131\func{}{wxFont}{\void}
132
133Default constructor.
134
eaaa6a06 135\func{}{wxFont}{\param{int}{ pointSize}, \param{int}{ family}, \param{int}{ style}, \param{int}{ weight},
cc81d32f 136 \param{const bool}{ underline = false}, \param{const wxString\& }{faceName = ""},
0c5d3e1c 137 \param{wxFontEncoding }{encoding = wxFONTENCODING\_DEFAULT}}
a660d684 138
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139Creates a font object (see \helpref{font encoding
140overview}{wxfontencodingoverview} for the meaning of the last parameter).
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141
142\wxheading{Parameters}
143
144\docparam{pointSize}{Size in points.}
145
146\docparam{family}{Font family, a generic way of referring to fonts without specifying actual facename. One of:
147
148\twocolwidtha{5cm}
149\begin{twocollist}\itemsep=0pt
150\twocolitem{{\bf wxDEFAULT}}{Chooses a default font.}
151\twocolitem{{\bf wxDECORATIVE}}{A decorative font.}
152\twocolitem{{\bf wxROMAN}}{A formal, serif font.}
153\twocolitem{{\bf wxSCRIPT}}{A handwriting font.}
154\twocolitem{{\bf wxSWISS}}{A sans-serif font.}
155\twocolitem{{\bf wxMODERN}}{A fixed pitch font.}
156\end{twocollist}}
157
158\docparam{style}{One of {\bf wxNORMAL}, {\bf wxSLANT} and {\bf wxITALIC}.}
159
160\docparam{weight}{One of {\bf wxNORMAL}, {\bf wxLIGHT} and {\bf wxBOLD}.}
161
da494b40 162\docparam{underline}{The value can be true or false. At present this has an effect on Windows and Motif 2.x only.}
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163
164\docparam{faceName}{An optional string specifying the actual typeface to be used. If the empty string,
165a default typeface will chosen based on the family.}
166
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167\docparam{encoding}{An encoding which may be one of
168\twocolwidtha{5cm}
169\begin{twocollist}\itemsep=0pt
170\twocolitem{{\bf wxFONTENCODING\_SYSTEM}}{Default system encoding.}
171\twocolitem{{\bf wxFONTENCODING\_DEFAULT}}{Default application encoding: this
172is the encoding set by calls to
88b1927c 173\helpref{SetDefaultEncoding}{wxfontsetdefaultencoding} and which may be set to,
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174say, KOI8 to create all fonts by default with KOI8 encoding. Initially, the
175default application encoding is the same as default system encoding.}
176\twocolitem{{\bf wxFONTENCODING\_ISO8859\_1...15}}{ISO8859 encodings.}
2edb0bde 177\twocolitem{{\bf wxFONTENCODING\_KOI8}}{The standard Russian encoding for Internet.}
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178\twocolitem{{\bf wxFONTENCODING\_CP1250...1252}}{Windows encodings similar to ISO8859 (but not identical).}
179\end{twocollist}
180If the specified encoding isn't available, no font is created.
181}
182
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183\wxheading{Remarks}
184
185If the desired font does not exist, the closest match will be chosen.
2edb0bde 186Under Windows, only scalable TrueType fonts are used.
a660d684 187
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188See also \helpref{wxDC::SetFont}{wxdcsetfont}, \helpref{wxDC::DrawText}{wxdcdrawtext}
189and \helpref{wxDC::GetTextExtent}{wxdcgettextextent}.
190
191\membersection{wxFont::\destruct{wxFont}}
192
193\func{}{\destruct{wxFont}}{\void}
194
195Destructor.
196
197\wxheading{Remarks}
198
199The destructor may not delete the underlying font object of the native windowing
775a998e 200system, since wxFont uses a reference counting system for efficiency.
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201
202Although all remaining fonts are deleted when the application exits,
203the application should try to clean up all fonts itself. This is because
204wxWindows cannot know if a pointer to the font object is stored in an
205application data structure, and there is a risk of double deletion.
206
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207\membersection{wxFont::IsFixedWidth}\label{wxfontisfixedwidth}
208
209\constfunc{bool}{IsFixedWidth}{\void}
210
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211Returns {\tt true} if the font is a fixed width (or monospaced) font,
212{\tt false} if it is a proportional one or font is invalid.
53f6aab7 213
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214\membersection{wxFont::GetDefaultEncoding}\label{wxfontgetdefaultencoding}
215
216\func{static wxFontEncoding}{GetDefaultEncoding}{\void}
217
2b5f62a0 218Returns the current application's default encoding.
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219
220\wxheading{See also}
221
222\helpref{Font encoding overview}{wxfontencodingoverview},
223\helpref{SetDefaultEncoding}{wxfontsetdefaultencoding}
224
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225\membersection{wxFont::GetFaceName}\label{wxfontgetfacename}
226
227\constfunc{wxString}{GetFaceName}{\void}
228
229Returns the typeface name associated with the font, or the empty string if there is no
230typeface information.
231
232\wxheading{See also}
233
234\helpref{wxFont::SetFaceName}{wxfontsetfacename}
235
236\membersection{wxFont::GetFamily}\label{wxfontgetfamily}
237
238\constfunc{int}{GetFamily}{\void}
239
240Gets the font family. See \helpref{wxFont::wxFont}{wxfontconstr} for a list of valid
241family identifiers.
242
243\wxheading{See also}
244
245\helpref{wxFont::SetFamily}{wxfontsetfamily}
246
dccb75b6 247\membersection{wxFont::GetNativeFontInfoDesc}\label{wxfontgetnativefontinfodesc}
a660d684 248
dccb75b6 249\constfunc{wxString}{GetNativeFontInfoDesc}{\void}
a660d684 250
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251Returns the platform-dependent string completely describing this font or an
252empty string if the font wasn't constructed using the native font description.
253
254\wxheading{See also}
255
256\helpref{wxFont::SetNativeFontInfo}{wxfontsetnativefontinfo}
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257
258\membersection{wxFont::GetPointSize}\label{wxfontgetpointsize}
259
260\constfunc{int}{GetPointSize}{\void}
261
262Gets the point size.
263
264\wxheading{See also}
265
266\helpref{wxFont::SetPointSize}{wxfontsetpointsize}
267
268\membersection{wxFont::GetStyle}\label{wxfontgetstyle}
269
270\constfunc{int}{GetStyle}{\void}
271
272Gets the font style. See \helpref{wxFont::wxFont}{wxfontconstr} for a list of valid
273styles.
274
275\wxheading{See also}
276
277\helpref{wxFont::SetStyle}{wxfontsetstyle}
278
279\membersection{wxFont::GetUnderlined}\label{wxfontgetunderlined}
280
281\constfunc{bool}{GetUnderlined}{\void}
282
cc81d32f 283Returns true if the font is underlined, false otherwise.
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284
285\wxheading{See also}
286
287\helpref{wxFont::SetUnderlined}{wxfontsetunderlined}
288
289\membersection{wxFont::GetWeight}\label{wxfontgetweight}
290
291\constfunc{int}{GetWeight}{\void}
292
293Gets the font weight. See \helpref{wxFont::wxFont}{wxfontconstr} for a list of valid
294weight identifiers.
295
296\wxheading{See also}
297
298\helpref{wxFont::SetWeight}{wxfontsetweight}
299
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300\membersection{wxFont::Ok}\label{wxfontok}
301
302\constfunc{bool}{Ok}{\void}
303
cc81d32f 304Returns {\tt true} if this object is a valid font, {\tt false} otherwise.
8a280d9a 305
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306\membersection{wxFont::SetDefaultEncoding}\label{wxfontsetdefaultencoding}
307
308\func{static void}{SetDefaultEncoding}{\param{wxFontEncoding }{encoding}}
309
310Sets the default font encoding.
311
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312\wxheading{See also}
313
314\helpref{Font encoding overview}{wxfontencodingoverview},
315\helpref{GetDefaultEncoding}{wxfontgetdefaultencoding}
316
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317\membersection{wxFont::SetFaceName}\label{wxfontsetfacename}
318
319\func{void}{SetFaceName}{\param{const wxString\& }{faceName}}
320
321Sets the facename for the font.
322
323\wxheading{Parameters}
324
325\docparam{faceName}{A valid facename, which should be on the end-user's system.}
326
327\wxheading{Remarks}
328
329To avoid portability problems, don't rely on a specific face, but specify the font family
330instead or as well. A suitable font will be found on the end-user's system. If both the
331family and the facename are specified, wxWindows will first search for the specific face,
332and then for a font belonging to the same family.
333
334\wxheading{See also}
335
336\helpref{wxFont::GetFaceName}{wxfontgetfacename}, \helpref{wxFont::SetFamily}{wxfontsetfamily}
337
338\membersection{wxFont::SetFamily}\label{wxfontsetfamily}
339
eaaa6a06 340\func{void}{SetFamily}{\param{int}{ family}}
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341
342Sets the font family.
343
344\wxheading{Parameters}
345
346\docparam{family}{One of:
347
348\twocolwidtha{5cm}
349\begin{twocollist}\itemsep=0pt
350\twocolitem{{\bf wxDEFAULT}}{Chooses a default font.}
351\twocolitem{{\bf wxDECORATIVE}}{A decorative font.}
352\twocolitem{{\bf wxROMAN}}{A formal, serif font.}
353\twocolitem{{\bf wxSCRIPT}}{A handwriting font.}
354\twocolitem{{\bf wxSWISS}}{A sans-serif font.}
355\twocolitem{{\bf wxMODERN}}{A fixed pitch font.}
356\end{twocollist}}
357
358\wxheading{See also}
359
360\helpref{wxFont::GetFamily}{wxfontgetfamily}, \helpref{wxFont::SetFaceName}{wxfontsetfacename}
361
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362\membersection{wxFont::SetNativeFontInfo}\label{wxfontsetnativefontinfo}
363
364\func{void}{SetNativeFontInfo}{\param{const wxString\& }{info}}
365
366Creates the font corresponding to the given native font description string
367which must have been previously returned by
368\helpref{GetNativeFontInfoDesc}{wxfontgetnativefontinfodesc}. If the string is
369invalid, font is unchanged.
370
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371\membersection{wxFont::SetPointSize}\label{wxfontsetpointsize}
372
eaaa6a06 373\func{void}{SetPointSize}{\param{int}{ pointSize}}
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374
375Sets the point size.
376
377\wxheading{Parameters}
378
379\docparam{pointSize}{Size in points.}
380
381\wxheading{See also}
382
383\helpref{wxFont::GetPointSize}{wxfontgetpointsize}
384
385\membersection{wxFont::SetStyle}\label{wxfontsetstyle}
386
eaaa6a06 387\func{void}{SetStyle}{\param{int}{ style}}
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388
389Sets the font style.
390
391\wxheading{Parameters}
392
393\docparam{style}{One of {\bf wxNORMAL}, {\bf wxSLANT} and {\bf wxITALIC}.}
394
395\wxheading{See also}
396
397\helpref{wxFont::GetStyle}{wxfontgetstyle}
398
399\membersection{wxFont::SetUnderlined}\label{wxfontsetunderlined}
400
401\func{void}{SetUnderlined}{\param{const bool}{ underlined}}
402
403Sets underlining.
404
405\wxheading{Parameters}
406
cc81d32f 407\docparam{underlining}{true to underline, false otherwise.}
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408
409\wxheading{See also}
410
411\helpref{wxFont::GetUnderlined}{wxfontgetunderlined}
412
413\membersection{wxFont::SetWeight}\label{wxfontsetweight}
414
eaaa6a06 415\func{void}{SetWeight}{\param{int}{ weight}}
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416
417Sets the font weight.
418
419\wxheading{Parameters}
420
421\docparam{weight}{One of {\bf wxNORMAL}, {\bf wxLIGHT} and {\bf wxBOLD}.}
422
423\wxheading{See also}
424
425\helpref{wxFont::GetWeight}{wxfontgetweight}
426
427\membersection{wxFont::operator $=$}\label{wxfontassignment}
428
429\func{wxFont\&}{operator $=$}{\param{const wxFont\& }{font}}
430
431Assignment operator, using reference counting. Returns a reference
432to `this'.
433
434\membersection{wxFont::operator $==$}\label{wxfontequals}
435
436\func{bool}{operator $==$}{\param{const wxFont\& }{font}}
437
438Equality operator. Two fonts are equal if they contain pointers
439to the same underlying font data. It does not compare each attribute,
440so two indefontdently-created fonts using the same parameters will
441fail the test.
442
443\membersection{wxFont::operator $!=$}\label{wxfontnotequals}
444
445\func{bool}{operator $!=$}{\param{const wxFont\& }{font}}
446
447Inequality operator. Two fonts are not equal if they contain pointers
448to different underlying font data. It does not compare each attribute.
449
450