]> git.saurik.com Git - wxWidgets.git/blame - docs/latex/wx/font.tex
Reverted changes in accessible.tex that caused syntax error
[wxWidgets.git] / docs / latex / wx / font.tex
CommitLineData
a660d684
KB
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
8161ba08
JS
7You can retrieve the current system font settings with \helpref{wxSystemSettings}{wxsystemsettings}.
8
9\helpref{wxSystemSettings}{wxsystemsettings}
10
a660d684
KB
11\wxheading{Derived from}
12
13\helpref{wxGDIObject}{wxgdiobject}\\
14\helpref{wxObject}{wxobject}
15
954b8ae6
JS
16\wxheading{Include files}
17
18<wx/font.h>
19
dccce9ea
VZ
20\wxheading{Constants}
21
01cb1c26
VZ
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:
dccce9ea
VZ
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
20e85460
JS
108\wxheading{Predefined objects}
109
110Objects:
111
112{\bf wxNullFont}
113
114Pointers:
115
116{\bf wxNORMAL\_FONT\\
117wxSMALL\_FONT\\
118wxITALIC\_FONT\\
119wxSWISS\_FONT}
120
a660d684
KB
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}
a660d684
KB
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
775a998e
VZ
139Creates a font object (see \helpref{font encoding
140overview}{wxfontencodingoverview} for the meaning of the last parameter).
a660d684
KB
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.}
a660d684
KB
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
0c5d3e1c
VZ
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,
0c5d3e1c
VZ
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.}
0c5d3e1c
VZ
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
a660d684
KB
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
a660d684
KB
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.
a660d684
KB
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
53f6aab7
VZ
207\membersection{wxFont::IsFixedWidth}\label{wxfontisfixedwidth}
208
209\constfunc{bool}{IsFixedWidth}{\void}
210
cc81d32f
VS
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
775a998e
VZ
214\membersection{wxFont::GetDefaultEncoding}\label{wxfontgetdefaultencoding}
215
216\func{static wxFontEncoding}{GetDefaultEncoding}{\void}
217
2b5f62a0 218Returns the current application's default encoding.
775a998e
VZ
219
220\wxheading{See also}
221
222\helpref{Font encoding overview}{wxfontencodingoverview},
223\helpref{SetDefaultEncoding}{wxfontsetdefaultencoding}
224
a660d684
KB
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
dccb75b6
VZ
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}
a660d684
KB
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.
a660d684
KB
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
8a280d9a
VZ
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
88b1927c
JS
306\membersection{wxFont::SetDefaultEncoding}\label{wxfontsetdefaultencoding}
307
308\func{static void}{SetDefaultEncoding}{\param{wxFontEncoding }{encoding}}
309
310Sets the default font encoding.
311
775a998e
VZ
312\wxheading{See also}
313
314\helpref{Font encoding overview}{wxfontencodingoverview},
315\helpref{GetDefaultEncoding}{wxfontgetdefaultencoding}
316
a660d684
KB
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}}
a660d684
KB
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
dccb75b6
VZ
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
a660d684
KB
371\membersection{wxFont::SetPointSize}\label{wxfontsetpointsize}
372
eaaa6a06 373\func{void}{SetPointSize}{\param{int}{ pointSize}}
a660d684
KB
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}}
a660d684
KB
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.}
a660d684
KB
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}}
a660d684
KB
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