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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 licence | |
7 | ///////////////////////////////////////////////////////////////////////////// | |
8 | ||
9 | ||
10 | /** | |
11 | Standard font families: these are used mainly during wxFont creation to specify | |
12 | the generic properties of the font without hardcoding in the sources a specific | |
13 | face name. | |
14 | ||
15 | wxFontFamily thus allows to group the font face names of fonts with similar | |
16 | properties. Most wxWidgets ports use lists of fonts for each font family | |
17 | inspired by the data taken from http://www.codestyle.org/css/font-family. | |
18 | */ | |
19 | enum wxFontFamily | |
20 | { | |
21 | wxFONTFAMILY_DEFAULT = wxDEFAULT, //!< Chooses a default font. | |
22 | ||
23 | wxFONTFAMILY_DECORATIVE = wxDECORATIVE, //!< A decorative font. | |
24 | wxFONTFAMILY_ROMAN = wxROMAN, //!< A formal, serif font. | |
25 | wxFONTFAMILY_SCRIPT = wxSCRIPT, //!< A handwriting font. | |
26 | wxFONTFAMILY_SWISS = wxSWISS, //!< A sans-serif font. | |
27 | ||
28 | /// A fixed pitch font. Note that wxFont currently does not make distinctions | |
29 | /// between @c wxFONTFAMILY_MODERN and @c wxFONTFAMILY_TELETYPE. | |
30 | wxFONTFAMILY_MODERN = wxMODERN, | |
31 | ||
32 | /// A teletype (i.e. monospaced) font. | |
33 | /// Monospace fonts have a fixed width like typewriters and often have strong angular | |
34 | /// or block serifs. Monospace font faces are often used code samples and have a simple, | |
35 | /// functional font style. | |
36 | /// See also wxFont::IsFixedWidth() for an easy way to test for monospace property. | |
37 | wxFONTFAMILY_TELETYPE = wxTELETYPE, | |
38 | ||
39 | /// Invalid font family value, returned by wxFont::GetFamily() when the | |
40 | /// font is invalid for example. | |
41 | wxFONTFAMILY_UNKNOWN | |
42 | }; | |
43 | ||
44 | /** | |
45 | Font styles. | |
46 | */ | |
47 | enum wxFontStyle | |
48 | { | |
49 | /// The font is drawn without slant. | |
50 | wxFONTSTYLE_NORMAL = wxNORMAL, | |
51 | ||
52 | /// The font is slanted in an italic style. | |
53 | wxFONTSTYLE_ITALIC = wxITALIC, | |
54 | ||
55 | /// The font is slanted, but in a roman style. | |
56 | /// Note that under wxMSW this style is the same as @c wxFONTSTYLE_ITALIC. | |
57 | wxFONTSTYLE_SLANT = wxSLANT, | |
58 | ||
59 | wxFONTSTYLE_MAX | |
60 | }; | |
61 | ||
62 | /** | |
63 | Font weights. | |
64 | */ | |
65 | enum wxFontWeight | |
66 | { | |
67 | wxFONTWEIGHT_NORMAL = wxNORMAL, //!< Normal font. | |
68 | wxFONTWEIGHT_LIGHT = wxLIGHT, //!< Light font. | |
69 | wxFONTWEIGHT_BOLD = wxBOLD, //!< Bold font. | |
70 | wxFONTWEIGHT_MAX | |
71 | }; | |
72 | ||
73 | /** | |
74 | Symbolic font sizes. | |
75 | ||
76 | The elements of this enum correspond to CSS absolute size specifications, | |
77 | see http://www.w3.org/TR/CSS21/fonts.html#font-size-props | |
78 | ||
79 | @see wxFont::SetSymbolicSize() | |
80 | ||
81 | @since 2.9.2 | |
82 | */ | |
83 | enum wxFontSymbolicSize | |
84 | { | |
85 | wxFONTSIZE_XX_SMALL = -3, //!< Extra small. | |
86 | wxFONTSIZE_X_SMALL, //!< Very small. | |
87 | wxFONTSIZE_SMALL, //!< Small. | |
88 | wxFONTSIZE_MEDIUM, //!< Normal. | |
89 | wxFONTSIZE_LARGE, //!< Large. | |
90 | wxFONTSIZE_X_LARGE, //!< Very large. | |
91 | wxFONTSIZE_XX_LARGE //!< Extra large. | |
92 | }; | |
93 | ||
94 | /** | |
95 | The font flag bits for the new font ctor accepting one combined flags word. | |
96 | */ | |
97 | enum wxFontFlag | |
98 | { | |
99 | /// no special flags: font with default weight/slant/anti-aliasing | |
100 | wxFONTFLAG_DEFAULT = 0, | |
101 | ||
102 | /// slant flags (default: no slant) | |
103 | wxFONTFLAG_ITALIC = 1 << 0, | |
104 | wxFONTFLAG_SLANT = 1 << 1, | |
105 | ||
106 | /// weight flags (default: medium) | |
107 | wxFONTFLAG_LIGHT = 1 << 2, | |
108 | wxFONTFLAG_BOLD = 1 << 3, | |
109 | ||
110 | /// anti-aliasing flag: force on or off (default: the current system default) | |
111 | wxFONTFLAG_ANTIALIASED = 1 << 4, | |
112 | wxFONTFLAG_NOT_ANTIALIASED = 1 << 5, | |
113 | ||
114 | /// underlined/strikethrough flags (default: no lines) | |
115 | wxFONTFLAG_UNDERLINED = 1 << 6, | |
116 | wxFONTFLAG_STRIKETHROUGH = 1 << 7, | |
117 | ||
118 | /// the mask of all currently used flags | |
119 | wxFONTFLAG_MASK = wxFONTFLAG_ITALIC | | |
120 | wxFONTFLAG_SLANT | | |
121 | wxFONTFLAG_LIGHT | | |
122 | wxFONTFLAG_BOLD | | |
123 | wxFONTFLAG_ANTIALIASED | | |
124 | wxFONTFLAG_NOT_ANTIALIASED | | |
125 | wxFONTFLAG_UNDERLINED | | |
126 | wxFONTFLAG_STRIKETHROUGH | |
127 | }; | |
128 | ||
129 | ||
130 | ||
131 | /** | |
132 | Font encodings. | |
133 | ||
134 | See wxFont::SetEncoding(). | |
135 | */ | |
136 | enum wxFontEncoding | |
137 | { | |
138 | /// Default system encoding. | |
139 | wxFONTENCODING_SYSTEM = -1, // system default | |
140 | ||
141 | /// Default application encoding. | |
142 | wxFONTENCODING_DEFAULT, // current default encoding | |
143 | ||
144 | // ISO8859 standard defines a number of single-byte charsets | |
145 | wxFONTENCODING_ISO8859_1, //!< West European (Latin1) | |
146 | wxFONTENCODING_ISO8859_2, //!< Central and East European (Latin2) | |
147 | wxFONTENCODING_ISO8859_3, //!< Esperanto (Latin3) | |
148 | wxFONTENCODING_ISO8859_4, //!< Baltic (old) (Latin4) | |
149 | wxFONTENCODING_ISO8859_5, //!< Cyrillic | |
150 | wxFONTENCODING_ISO8859_6, //!< Arabic | |
151 | wxFONTENCODING_ISO8859_7, //!< Greek | |
152 | wxFONTENCODING_ISO8859_8, //!< Hebrew | |
153 | wxFONTENCODING_ISO8859_9, //!< Turkish (Latin5) | |
154 | wxFONTENCODING_ISO8859_10, //!< Variation of Latin4 (Latin6) | |
155 | wxFONTENCODING_ISO8859_11, //!< Thai | |
156 | wxFONTENCODING_ISO8859_12, //!< doesn't exist currently, but put it | |
157 | //!< here anyhow to make all ISO8859 | |
158 | //!< consecutive numbers | |
159 | wxFONTENCODING_ISO8859_13, //!< Baltic (Latin7) | |
160 | wxFONTENCODING_ISO8859_14, //!< Latin8 | |
161 | wxFONTENCODING_ISO8859_15, //!< Latin9 (a.k.a. Latin0, includes euro) | |
162 | wxFONTENCODING_ISO8859_MAX, | |
163 | ||
164 | // Cyrillic charset soup (see http://czyborra.com/charsets/cyrillic.html) | |
165 | wxFONTENCODING_KOI8, //!< KOI8 Russian | |
166 | wxFONTENCODING_KOI8_U, //!< KOI8 Ukrainian | |
167 | wxFONTENCODING_ALTERNATIVE, //!< same as MS-DOS CP866 | |
168 | wxFONTENCODING_BULGARIAN, //!< used under Linux in Bulgaria | |
169 | ||
170 | // what would we do without Microsoft? They have their own encodings | |
171 | // for DOS | |
172 | wxFONTENCODING_CP437, //!< original MS-DOS codepage | |
173 | wxFONTENCODING_CP850, //!< CP437 merged with Latin1 | |
174 | wxFONTENCODING_CP852, //!< CP437 merged with Latin2 | |
175 | wxFONTENCODING_CP855, //!< another cyrillic encoding | |
176 | wxFONTENCODING_CP866, //!< and another one | |
177 | // and for Windows | |
178 | wxFONTENCODING_CP874, //!< WinThai | |
179 | wxFONTENCODING_CP932, //!< Japanese (shift-JIS) | |
180 | wxFONTENCODING_CP936, //!< Chinese simplified (GB) | |
181 | wxFONTENCODING_CP949, //!< Korean (Hangul charset) | |
182 | wxFONTENCODING_CP950, //!< Chinese (traditional - Big5) | |
183 | wxFONTENCODING_CP1250, //!< WinLatin2 | |
184 | wxFONTENCODING_CP1251, //!< WinCyrillic | |
185 | wxFONTENCODING_CP1252, //!< WinLatin1 | |
186 | wxFONTENCODING_CP1253, //!< WinGreek (8859-7) | |
187 | wxFONTENCODING_CP1254, //!< WinTurkish | |
188 | wxFONTENCODING_CP1255, //!< WinHebrew | |
189 | wxFONTENCODING_CP1256, //!< WinArabic | |
190 | wxFONTENCODING_CP1257, //!< WinBaltic (same as Latin 7) | |
191 | wxFONTENCODING_CP12_MAX, | |
192 | ||
193 | wxFONTENCODING_UTF7, //!< UTF-7 Unicode encoding | |
194 | wxFONTENCODING_UTF8, //!< UTF-8 Unicode encoding | |
195 | wxFONTENCODING_EUC_JP, //!< Extended Unix Codepage for Japanese | |
196 | wxFONTENCODING_UTF16BE, //!< UTF-16 Big Endian Unicode encoding | |
197 | wxFONTENCODING_UTF16LE, //!< UTF-16 Little Endian Unicode encoding | |
198 | wxFONTENCODING_UTF32BE, //!< UTF-32 Big Endian Unicode encoding | |
199 | wxFONTENCODING_UTF32LE, // UTF-32 Little Endian Unicode encoding | |
200 | ||
201 | wxFONTENCODING_MACROMAN, //!< the standard mac encodings | |
202 | wxFONTENCODING_MACJAPANESE, | |
203 | wxFONTENCODING_MACCHINESETRAD, | |
204 | wxFONTENCODING_MACKOREAN, | |
205 | wxFONTENCODING_MACARABIC, | |
206 | wxFONTENCODING_MACHEBREW, | |
207 | wxFONTENCODING_MACGREEK, | |
208 | wxFONTENCODING_MACCYRILLIC, | |
209 | wxFONTENCODING_MACDEVANAGARI, | |
210 | wxFONTENCODING_MACGURMUKHI, | |
211 | wxFONTENCODING_MACGUJARATI, | |
212 | wxFONTENCODING_MACORIYA, | |
213 | wxFONTENCODING_MACBENGALI, | |
214 | wxFONTENCODING_MACTAMIL, | |
215 | wxFONTENCODING_MACTELUGU, | |
216 | wxFONTENCODING_MACKANNADA, | |
217 | wxFONTENCODING_MACMALAJALAM, | |
218 | wxFONTENCODING_MACSINHALESE, | |
219 | wxFONTENCODING_MACBURMESE, | |
220 | wxFONTENCODING_MACKHMER, | |
221 | wxFONTENCODING_MACTHAI, | |
222 | wxFONTENCODING_MACLAOTIAN, | |
223 | wxFONTENCODING_MACGEORGIAN, | |
224 | wxFONTENCODING_MACARMENIAN, | |
225 | wxFONTENCODING_MACCHINESESIMP, | |
226 | wxFONTENCODING_MACTIBETAN, | |
227 | wxFONTENCODING_MACMONGOLIAN, | |
228 | wxFONTENCODING_MACETHIOPIC, | |
229 | wxFONTENCODING_MACCENTRALEUR, | |
230 | wxFONTENCODING_MACVIATNAMESE, | |
231 | wxFONTENCODING_MACARABICEXT, | |
232 | wxFONTENCODING_MACSYMBOL, | |
233 | wxFONTENCODING_MACDINGBATS, | |
234 | wxFONTENCODING_MACTURKISH, | |
235 | wxFONTENCODING_MACCROATIAN, | |
236 | wxFONTENCODING_MACICELANDIC, | |
237 | wxFONTENCODING_MACROMANIAN, | |
238 | wxFONTENCODING_MACCELTIC, | |
239 | wxFONTENCODING_MACGAELIC, | |
240 | wxFONTENCODING_MACKEYBOARD, | |
241 | ||
242 | // more CJK encodings (for historical reasons some are already declared | |
243 | // above) | |
244 | wxFONTENCODING_ISO2022_JP, //!< ISO-2022-JP JIS encoding | |
245 | ||
246 | wxFONTENCODING_MAX, //!< highest enumerated encoding value | |
247 | ||
248 | wxFONTENCODING_MACMIN = wxFONTENCODING_MACROMAN , | |
249 | wxFONTENCODING_MACMAX = wxFONTENCODING_MACKEYBOARD , | |
250 | ||
251 | // aliases for endian-dependent UTF encodings | |
252 | wxFONTENCODING_UTF16, //!< native UTF-16 | |
253 | wxFONTENCODING_UTF32, //!< native UTF-32 | |
254 | ||
255 | /// Alias for the native Unicode encoding on this platform | |
256 | /// (this is used by wxEncodingConverter and wxUTFFile only for now) | |
257 | wxFONTENCODING_UNICODE, | |
258 | ||
259 | wxFONTENCODING_GB2312 = wxFONTENCODING_CP936, //!< Simplified Chinese | |
260 | wxFONTENCODING_BIG5 = wxFONTENCODING_CP950, //!< Traditional Chinese | |
261 | wxFONTENCODING_SHIFT_JIS = wxFONTENCODING_CP932, //!< Shift JIS | |
262 | wxFONTENCODING_EUC_KR = wxFONTENCODING_CP949 //!< Korean | |
263 | }; | |
264 | ||
265 | ||
266 | ||
267 | /** | |
268 | @class wxFont | |
269 | ||
270 | A font is an object which determines the appearance of text. | |
271 | Fonts are used for drawing text to a device context, and setting the appearance | |
272 | of a window's text. | |
273 | ||
274 | This class uses @ref overview_refcount "reference counting and copy-on-write" | |
275 | internally so that assignments between two instances of this class are very | |
276 | cheap. You can therefore use actual objects instead of pointers without | |
277 | efficiency problems. If an instance of this class is changed it will create | |
278 | its own data internally so that other instances, which previously shared the | |
279 | data using the reference counting, are not affected. | |
280 | ||
281 | You can retrieve the current system font settings with wxSystemSettings. | |
282 | ||
283 | @library{wxcore} | |
284 | @category{gdi} | |
285 | ||
286 | @stdobjects | |
287 | ::wxNullFont, ::wxNORMAL_FONT, ::wxSMALL_FONT, ::wxITALIC_FONT, ::wxSWISS_FONT | |
288 | ||
289 | @see @ref overview_font, wxDC::SetFont, wxDC::DrawText, | |
290 | wxDC::GetTextExtent, wxFontDialog, wxSystemSettings | |
291 | */ | |
292 | class wxFont : public wxGDIObject | |
293 | { | |
294 | public: | |
295 | /** | |
296 | Default ctor. | |
297 | */ | |
298 | wxFont(); | |
299 | ||
300 | /** | |
301 | Copy constructor, uses @ref overview_refcount "reference counting". | |
302 | */ | |
303 | wxFont(const wxFont& font); | |
304 | ||
305 | /** | |
306 | Creates a font object with the specified attributes. | |
307 | ||
308 | @param pointSize | |
309 | Size in points. See SetPointSize() for more info. | |
310 | @param family | |
311 | The font family: a generic portable way of referring to fonts without specifying a | |
312 | facename. This parameter must be one of the ::wxFontFamily enumeration values. | |
313 | If the @a faceName argument is provided, then it overrides the font family. | |
314 | @param style | |
315 | One of @c wxFONTSTYLE_NORMAL, @c wxFONTSTYLE_SLANT and @c wxFONTSTYLE_ITALIC. | |
316 | @param weight | |
317 | Font weight, sometimes also referred to as font boldness. | |
318 | One of the ::wxFontWeight enumeration values. | |
319 | @param underline | |
320 | The value can be @true or @false. | |
321 | At present this has an effect on Windows and Motif 2.x only. | |
322 | @param faceName | |
323 | An optional string specifying the face name to be used. | |
324 | If it is an empty string, a default face name will be chosen based on the family. | |
325 | @param encoding | |
326 | An encoding which may be one of the enumeration values of ::wxFontEncoding. | |
327 | Briefly these can be summed up as: | |
328 | <TABLE> | |
329 | <TR><TD>@c wxFONTENCODING_SYSTEM</TD><TD>Default system encoding.</TD></TR> | |
330 | <TR><TD>@c wxFONTENCODING_DEFAULT</TD><TD> | |
331 | Default application encoding: this is the encoding set by calls to | |
332 | SetDefaultEncoding() and which may be set to, say, KOI8 to create all | |
333 | fonts by default with KOI8 encoding. Initially, the default application | |
334 | encoding is the same as default system encoding.</TD></TR> | |
335 | <TR><TD>@c wxFONTENCODING_ISO8859_1...15</TD><TD>ISO8859 encodings.</TD></TR> | |
336 | <TR><TD>@c wxFONTENCODING_KOI8</TD><TD>The standard Russian encoding for Internet.</TD></TR> | |
337 | <TR><TD>@c wxFONTENCODING_CP1250...1252</TD><TD>Windows encodings similar to ISO8859 (but not identical).</TD></TR> | |
338 | </TABLE> | |
339 | If the specified encoding isn't available, no font is created | |
340 | (see also @ref overview_fontencoding). | |
341 | ||
342 | @remarks If the desired font does not exist, the closest match will be | |
343 | chosen. Under Windows, only scalable TrueType fonts are used. | |
344 | */ | |
345 | wxFont(int pointSize, wxFontFamily family, wxFontStyle style, | |
346 | wxFontWeight weight, | |
347 | bool underline = false, | |
348 | const wxString& faceName = wxEmptyString, | |
349 | wxFontEncoding encoding = wxFONTENCODING_DEFAULT); | |
350 | ||
351 | /** | |
352 | Creates a font object with the specified attributes. | |
353 | ||
354 | @param pixelSize | |
355 | Size in pixels. See SetPixelSize() for more info. | |
356 | @param family | |
357 | The font family: a generic portable way of referring to fonts without specifying a | |
358 | facename. This parameter must be one of the ::wxFontFamily enumeration values. | |
359 | If the @a faceName argument is provided, then it overrides the font family. | |
360 | @param style | |
361 | One of @c wxFONTSTYLE_NORMAL, @c wxFONTSTYLE_SLANT and @c wxFONTSTYLE_ITALIC. | |
362 | @param weight | |
363 | Font weight, sometimes also referred to as font boldness. | |
364 | One of the ::wxFontWeight enumeration values. | |
365 | @param underline | |
366 | The value can be @true or @false. | |
367 | At present this has an effect on Windows and Motif 2.x only. | |
368 | @param faceName | |
369 | An optional string specifying the face name to be used. | |
370 | If it is an empty string, a default face name will be chosen based on the family. | |
371 | @param encoding | |
372 | An encoding which may be one of the enumeration values of ::wxFontEncoding. | |
373 | Briefly these can be summed up as: | |
374 | <TABLE> | |
375 | <TR><TD>@c wxFONTENCODING_SYSTEM</TD><TD>Default system encoding.</TD></TR> | |
376 | <TR><TD>@c wxFONTENCODING_DEFAULT</TD><TD> | |
377 | Default application encoding: this is the encoding set by calls to | |
378 | SetDefaultEncoding() and which may be set to, say, KOI8 to create all | |
379 | fonts by default with KOI8 encoding. Initially, the default application | |
380 | encoding is the same as default system encoding.</TD></TR> | |
381 | <TR><TD>@c wxFONTENCODING_ISO8859_1...15</TD><TD>ISO8859 encodings.</TD></TR> | |
382 | <TR><TD>@c wxFONTENCODING_KOI8</TD><TD>The standard Russian encoding for Internet.</TD></TR> | |
383 | <TR><TD>@c wxFONTENCODING_CP1250...1252</TD><TD>Windows encodings similar to ISO8859 (but not identical).</TD></TR> | |
384 | </TABLE> | |
385 | If the specified encoding isn't available, no font is created | |
386 | (see also @ref overview_fontencoding). | |
387 | ||
388 | @remarks If the desired font does not exist, the closest match will be | |
389 | chosen. Under Windows, only scalable TrueType fonts are used. | |
390 | */ | |
391 | wxFont(const wxSize& pixelSize, wxFontFamily family, | |
392 | wxFontStyle style, wxFontWeight weight, | |
393 | bool underline = false, | |
394 | const wxString& faceName = wxEmptyString, | |
395 | wxFontEncoding encoding = wxFONTENCODING_DEFAULT); | |
396 | ||
397 | /** | |
398 | Constructor from font description string. | |
399 | ||
400 | This constructor uses SetNativeFontInfo() to initialize the font. | |
401 | If @a fontdesc is invalid the font remains uninitialized, i.e. its IsOk() method | |
402 | will return @false. | |
403 | */ | |
404 | wxFont(const wxString& fontdesc); | |
405 | ||
406 | /** | |
407 | Destructor. | |
408 | ||
409 | See @ref overview_refcount_destruct "reference-counted object destruction" | |
410 | for more info. | |
411 | ||
412 | @remarks Although all remaining fonts are deleted when the application | |
413 | exits, the application should try to clean up all fonts | |
414 | itself. This is because wxWidgets cannot know if a | |
415 | pointer to the font object is stored in an application | |
416 | data structure, and there is a risk of double deletion. | |
417 | */ | |
418 | virtual ~wxFont(); | |
419 | ||
420 | ||
421 | /** | |
422 | @name Getters | |
423 | */ | |
424 | //@{ | |
425 | ||
426 | /** | |
427 | Returns the encoding of this font. | |
428 | ||
429 | Note that under wxGTK the returned value is always @c wxFONTENCODING_UTF8. | |
430 | ||
431 | @see SetEncoding() | |
432 | */ | |
433 | virtual wxFontEncoding GetEncoding() const; | |
434 | ||
435 | /** | |
436 | Returns the face name associated with the font, or the empty string if | |
437 | there is no face information. | |
438 | ||
439 | @see SetFaceName() | |
440 | */ | |
441 | virtual wxString GetFaceName() const; | |
442 | ||
443 | /** | |
444 | Gets the font family if possible. | |
445 | ||
446 | As described in ::wxFontFamily docs the returned value acts as a rough, | |
447 | basic classification of the main font properties (look, spacing). | |
448 | ||
449 | If the current font face name is not recognized by wxFont or by the | |
450 | underlying system, @c wxFONTFAMILY_DEFAULT is returned. | |
451 | ||
452 | Note that currently this function is not very precise and so not | |
453 | particularly useful. Font families mostly make sense only for font | |
454 | creation, see SetFamily(). | |
455 | ||
456 | @see SetFamily() | |
457 | */ | |
458 | virtual wxFontFamily GetFamily() const; | |
459 | ||
460 | /** | |
461 | Returns the platform-dependent string completely describing this font. | |
462 | ||
463 | Returned string is always non-empty unless the font is invalid (in | |
464 | which case an assert is triggered). | |
465 | ||
466 | Note that the returned string is not meant to be shown or edited by the user: a | |
467 | typical use of this function is for serializing in string-form a wxFont object. | |
468 | ||
469 | @see SetNativeFontInfo(), GetNativeFontInfoUserDesc() | |
470 | */ | |
471 | wxString GetNativeFontInfoDesc() const; | |
472 | ||
473 | /** | |
474 | Returns a user-friendly string for this font object. | |
475 | ||
476 | Returned string is always non-empty unless the font is invalid (in | |
477 | which case an assert is triggered). | |
478 | ||
479 | The string does not encode all wxFont infos under all platforms; | |
480 | e.g. under wxMSW the font family is not present in the returned string. | |
481 | ||
482 | Some examples of the formats of returned strings (which are platform-dependent) | |
483 | are in SetNativeFontInfoUserDesc(). | |
484 | ||
485 | @see SetNativeFontInfoUserDesc(), GetNativeFontInfoDesc() | |
486 | */ | |
487 | wxString GetNativeFontInfoUserDesc() const; | |
488 | ||
489 | /** | |
490 | Gets the point size. | |
491 | ||
492 | @see SetPointSize() | |
493 | */ | |
494 | virtual int GetPointSize() const; | |
495 | ||
496 | /** | |
497 | Gets the pixel size. | |
498 | ||
499 | Note that under wxMSW if you passed to SetPixelSize() (or to the ctor) | |
500 | a wxSize object with a null width value, you'll get a null width in | |
501 | the returned object. | |
502 | ||
503 | @see SetPixelSize() | |
504 | */ | |
505 | virtual wxSize GetPixelSize() const; | |
506 | ||
507 | /** | |
508 | Gets the font style. See ::wxFontStyle for a list of valid styles. | |
509 | ||
510 | @see SetStyle() | |
511 | */ | |
512 | virtual wxFontStyle GetStyle() const; | |
513 | ||
514 | /** | |
515 | Returns @true if the font is underlined, @false otherwise. | |
516 | ||
517 | @see SetUnderlined() | |
518 | */ | |
519 | virtual bool GetUnderlined() const; | |
520 | ||
521 | /** | |
522 | Gets the font weight. See ::wxFontWeight for a list of valid weight identifiers. | |
523 | ||
524 | @see SetWeight() | |
525 | */ | |
526 | virtual wxFontWeight GetWeight() const; | |
527 | ||
528 | /** | |
529 | Returns @true if the font is a fixed width (or monospaced) font, | |
530 | @false if it is a proportional one or font is invalid. | |
531 | ||
532 | Note that this function under some platforms is different than just testing | |
533 | for the font family being equal to @c wxFONTFAMILY_TELETYPE because native | |
534 | platform-specific functions are used for the check (resulting in a more | |
535 | accurate return value). | |
536 | */ | |
537 | virtual bool IsFixedWidth() const; | |
538 | ||
539 | /** | |
540 | Returns @true if this object is a valid font, @false otherwise. | |
541 | */ | |
542 | virtual bool IsOk() const; | |
543 | ||
544 | //@} | |
545 | ||
546 | ||
547 | /** | |
548 | @name Similar fonts creation | |
549 | ||
550 | The functions in this section either modify the font in place or create | |
551 | a new font similar to the given one but with its weight, style or size | |
552 | changed. | |
553 | */ | |
554 | //@{ | |
555 | ||
556 | /** | |
557 | Returns a bold version of this font. | |
558 | ||
559 | @see MakeBold() | |
560 | ||
561 | @since 2.9.1 | |
562 | */ | |
563 | wxFont Bold() const; | |
564 | ||
565 | /** | |
566 | Returns an italic version of this font. | |
567 | ||
568 | @see MakeItalic() | |
569 | ||
570 | @since 2.9.1 | |
571 | */ | |
572 | wxFont Italic() const; | |
573 | ||
574 | /** | |
575 | Returns a larger version of this font. | |
576 | ||
577 | The font size is multiplied by @c 1.2, the factor of @c 1.2 being | |
578 | inspired by the W3C CSS specification. | |
579 | ||
580 | @see MakeLarger(), Smaller(), Scaled() | |
581 | ||
582 | @since 2.9.1 | |
583 | */ | |
584 | wxFont Larger() const; | |
585 | ||
586 | /** | |
587 | Returns a smaller version of this font. | |
588 | ||
589 | The font size is divided by @c 1.2, the factor of @c 1.2 being | |
590 | inspired by the W3C CSS specification. | |
591 | ||
592 | @see MakeSmaller(), Larger(), Scaled() | |
593 | ||
594 | @since 2.9.1 | |
595 | */ | |
596 | wxFont Smaller() const; | |
597 | ||
598 | /** | |
599 | Returns underlined version of this font. | |
600 | ||
601 | @see MakeUnderlined() | |
602 | ||
603 | @since 2.9.2 | |
604 | */ | |
605 | wxFont Underlined() const; | |
606 | ||
607 | /** | |
608 | Changes this font to be bold. | |
609 | ||
610 | @see Bold() | |
611 | ||
612 | @since 2.9.1 | |
613 | */ | |
614 | wxFont& MakeBold(); | |
615 | ||
616 | /** | |
617 | Changes this font to be italic. | |
618 | ||
619 | @see Italic() | |
620 | ||
621 | @since 2.9.1 | |
622 | */ | |
623 | wxFont& MakeItalic(); | |
624 | ||
625 | /** | |
626 | Changes this font to be larger. | |
627 | ||
628 | The font size is multiplied by @c 1.2, the factor of @c 1.2 being | |
629 | inspired by the W3C CSS specification. | |
630 | ||
631 | @see Larger(), MakeSmaller(), Scale() | |
632 | ||
633 | @since 2.9.1 | |
634 | */ | |
635 | wxFont& MakeLarger(); | |
636 | ||
637 | /** | |
638 | Changes this font to be smaller. | |
639 | ||
640 | The font size is divided by @c 1.2, the factor of @c 1.2 being | |
641 | inspired by the W3C CSS specification. | |
642 | ||
643 | @see Smaller(), MakeLarger(), Scale() | |
644 | ||
645 | @since 2.9.1 | |
646 | */ | |
647 | wxFont& MakeSmaller(); | |
648 | ||
649 | /** | |
650 | Changes this font to be underlined. | |
651 | ||
652 | @see Underlined() | |
653 | ||
654 | @since 2.9.2 | |
655 | */ | |
656 | wxFont& MakeUnderlined(); | |
657 | ||
658 | /** | |
659 | Changes the size of this font. | |
660 | ||
661 | The font size is multiplied by the given factor (which may be less than | |
662 | 1 to create a smaller version of the font). | |
663 | ||
664 | @see Scaled(), MakeLarger(), MakeSmaller() | |
665 | ||
666 | @since 2.9.1 | |
667 | */ | |
668 | wxFont& Scale(float x); | |
669 | ||
670 | /** | |
671 | Returns a scaled version of this font. | |
672 | ||
673 | The font size is multiplied by the given factor (which may be less than | |
674 | 1 to create a smaller version of the font). | |
675 | ||
676 | @see Scale(), Larger(), Smaller() | |
677 | ||
678 | @since 2.9.1 | |
679 | */ | |
680 | wxFont Scaled(float x) const; | |
681 | ||
682 | //@} | |
683 | ||
684 | /** | |
685 | @name Setters | |
686 | ||
687 | These functions internally recreate the native font object with the new | |
688 | specified property. | |
689 | */ | |
690 | //@{ | |
691 | ||
692 | /** | |
693 | Sets the encoding for this font. | |
694 | ||
695 | Note that under wxGTK this function has no effect (because the underlying | |
696 | Pango library always uses @c wxFONTENCODING_UTF8). | |
697 | ||
698 | @see GetEncoding() | |
699 | */ | |
700 | virtual void SetEncoding(wxFontEncoding encoding); | |
701 | ||
702 | /** | |
703 | Sets the facename for the font. | |
704 | ||
705 | @param faceName | |
706 | A valid facename, which should be on the end-user's system. | |
707 | ||
708 | @remarks To avoid portability problems, don't rely on a specific face, | |
709 | but specify the font family instead (see ::wxFontFamily and SetFamily()). | |
710 | ||
711 | @return @true if the given face name exists; if the face name doesn't exist | |
712 | in the user's system then the font is invalidated (so that IsOk() will | |
713 | return @false) and @false is returned. | |
714 | ||
715 | @see GetFaceName(), SetFamily() | |
716 | */ | |
717 | virtual bool SetFaceName(const wxString& faceName); | |
718 | ||
719 | /** | |
720 | Sets the font family. | |
721 | ||
722 | As described in ::wxFontFamily docs the given @a family value acts as a rough, | |
723 | basic indication of the main font properties (look, spacing). | |
724 | ||
725 | Note that changing the font family results in changing the font face name. | |
726 | ||
727 | @param family | |
728 | One of the ::wxFontFamily values. | |
729 | ||
730 | @see GetFamily(), SetFaceName() | |
731 | */ | |
732 | virtual void SetFamily(wxFontFamily family); | |
733 | ||
734 | /** | |
735 | Creates the font corresponding to the given native font description string | |
736 | which must have been previously returned by GetNativeFontInfoDesc(). | |
737 | ||
738 | If the string is invalid, font is unchanged. | |
739 | This function is typically used for de-serializing a wxFont object | |
740 | previously saved in a string-form. | |
741 | ||
742 | @return @true if the creation was successful. | |
743 | ||
744 | @see SetNativeFontInfoUserDesc() | |
745 | */ | |
746 | bool SetNativeFontInfo(const wxString& info); | |
747 | ||
748 | /** | |
749 | Creates the font corresponding to the given native font description string and | |
750 | returns @true if the creation was successful. | |
751 | ||
752 | Unlike SetNativeFontInfo(), this function accepts strings which are user-friendly. | |
753 | Examples of accepted string formats are: | |
754 | ||
755 | @beginTable | |
756 | @hdr3col{platform, generic syntax, example} | |
757 | @row3col{wxGTK2, <tt>[FACE-NAME] [bold] [oblique|italic] [POINTSIZE]</tt>, Monospace bold 10} | |
758 | @row3col{wxMSW, <tt>[light|bold] [italic] [FACE-NAME] [POINTSIZE] [ENCODING]</tt>, Tahoma 10 WINDOWS-1252} | |
759 | @endTable | |
760 | ||
761 | @todo add an example for wxMac | |
762 | ||
763 | For more detailed information about the allowed syntaxes you can look at the | |
764 | documentation of the native API used for font-rendering | |
765 | (e.g. @c pango_font_description_from_string on GTK). | |
766 | ||
767 | Note that unlike SetNativeFontInfo(), this function doesn't always restore all | |
768 | attributes of the wxFont object under all platforms; e.g. on wxMSW the font family | |
769 | is not restored (because GetNativeFontInfoUserDesc doesn't return it on wxMSW). | |
770 | If you want to serialize/deserialize a font in string form, you should use | |
771 | GetNativeFontInfoDesc() and SetNativeFontInfo() instead. | |
772 | ||
773 | @see SetNativeFontInfo() | |
774 | */ | |
775 | bool SetNativeFontInfoUserDesc(const wxString& info); | |
776 | ||
777 | /** | |
778 | Sets the point size. | |
779 | ||
780 | The <em>point size</em> is defined as 1/72 of the anglo-Saxon inch | |
781 | (25.4 mm): it is approximately 0.0139 inch or 352.8 um. | |
782 | ||
783 | @param pointSize | |
784 | Size in points. | |
785 | ||
786 | @see GetPointSize() | |
787 | */ | |
788 | virtual void SetPointSize(int pointSize); | |
789 | ||
790 | /** | |
791 | Sets the pixel size. | |
792 | ||
793 | The height parameter of @a pixelSize must be positive while the width | |
794 | parameter may also be zero (to indicate that you're not interested in the | |
795 | width of the characters: a suitable width will be chosen for best rendering). | |
796 | ||
797 | This feature (specifying the font pixel size) is directly supported only | |
798 | under wxMSW and wxGTK currently; under other platforms a font with the | |
799 | closest size to the given one is found using binary search (this maybe slower). | |
800 | ||
801 | @see GetPixelSize() | |
802 | */ | |
803 | virtual void SetPixelSize(const wxSize& pixelSize); | |
804 | ||
805 | /** | |
806 | Sets the font style. | |
807 | ||
808 | @param style | |
809 | One of the ::wxFontStyle enumeration values. | |
810 | ||
811 | @see GetStyle() | |
812 | */ | |
813 | virtual void SetStyle(wxFontStyle style); | |
814 | ||
815 | /** | |
816 | Sets the font size using a predefined symbolic size name. | |
817 | ||
818 | This function allows to change font size to be (very) large or small | |
819 | compared to the standard font size. | |
820 | ||
821 | @see SetSymbolicSizeRelativeTo(). | |
822 | ||
823 | @since 2.9.2 | |
824 | */ | |
825 | void SetSymbolicSize(wxFontSymbolicSize size); | |
826 | ||
827 | /** | |
828 | Sets the font size compared to the base font size. | |
829 | ||
830 | This is the same as SetSymbolicSize() except that it uses the given | |
831 | font size as the normal font size instead of the standard font size. | |
832 | ||
833 | @since 2.9.2 | |
834 | */ | |
835 | void SetSymbolicSizeRelativeTo(wxFontSymbolicSize size, int base); | |
836 | ||
837 | /** | |
838 | Sets underlining. | |
839 | ||
840 | @param underlined | |
841 | @true to underline, @false otherwise. | |
842 | ||
843 | @see GetUnderlined() | |
844 | */ | |
845 | virtual void SetUnderlined(bool underlined); | |
846 | ||
847 | /** | |
848 | Sets the font weight. | |
849 | ||
850 | @param weight | |
851 | One of the ::wxFontWeight values. | |
852 | ||
853 | @see GetWeight() | |
854 | */ | |
855 | virtual void SetWeight(wxFontWeight weight); | |
856 | ||
857 | //@} | |
858 | ||
859 | ||
860 | /** | |
861 | Inequality operator. | |
862 | ||
863 | See @ref overview_refcount_equality "reference-counted object comparison" for | |
864 | more info. | |
865 | */ | |
866 | bool operator!=(const wxFont& font) const; | |
867 | ||
868 | /** | |
869 | Equality operator. | |
870 | ||
871 | See @ref overview_refcount_equality "reference-counted object comparison" for | |
872 | more info. | |
873 | */ | |
874 | bool operator==(const wxFont& font) const; | |
875 | ||
876 | /** | |
877 | Assignment operator, using @ref overview_refcount "reference counting". | |
878 | */ | |
879 | wxFont& operator =(const wxFont& font); | |
880 | ||
881 | ||
882 | // statics | |
883 | ||
884 | /** | |
885 | Returns the current application's default encoding. | |
886 | ||
887 | @see @ref overview_fontencoding, SetDefaultEncoding() | |
888 | */ | |
889 | static wxFontEncoding GetDefaultEncoding(); | |
890 | ||
891 | /** | |
892 | Sets the default font encoding. | |
893 | ||
894 | @see @ref overview_fontencoding, GetDefaultEncoding() | |
895 | */ | |
896 | static void SetDefaultEncoding(wxFontEncoding encoding); | |
897 | ||
898 | //@{ | |
899 | /** | |
900 | This function takes the same parameters as the relative | |
901 | @ref wxFont::wxFont "wxFont constructor" and returns a new font | |
902 | object allocated on the heap. | |
903 | */ | |
904 | static wxFont* New(int pointSize, wxFontFamily family, wxFontStyle style, | |
905 | wxFontWeight weight, | |
906 | bool underline = false, | |
907 | const wxString& faceName = wxEmptyString, | |
908 | wxFontEncoding encoding = wxFONTENCODING_DEFAULT); | |
909 | static wxFont* New(int pointSize, wxFontFamily family, | |
910 | int flags = wxFONTFLAG_DEFAULT, | |
911 | const wxString& faceName = wxEmptyString, | |
912 | wxFontEncoding encoding = wxFONTENCODING_DEFAULT); | |
913 | static wxFont* New(const wxSize& pixelSize, | |
914 | wxFontFamily family, | |
915 | wxFontStyle style, | |
916 | wxFontWeight weight, | |
917 | bool underline = false, | |
918 | const wxString& faceName = wxEmptyString, | |
919 | wxFontEncoding encoding = wxFONTENCODING_DEFAULT); | |
920 | static wxFont* New(const wxSize& pixelSize, | |
921 | wxFontFamily family, | |
922 | int flags = wxFONTFLAG_DEFAULT, | |
923 | const wxString& faceName = wxEmptyString, | |
924 | wxFontEncoding encoding = wxFONTENCODING_DEFAULT); | |
925 | //@} | |
926 | }; | |
927 | ||
928 | ||
929 | /** | |
930 | An empty wxFont. | |
931 | */ | |
932 | wxFont wxNullFont; | |
933 | ||
934 | /** | |
935 | Equivalent to wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT). | |
936 | ||
937 | @see wxSystemSettings | |
938 | */ | |
939 | wxFont wxNORMAL_FONT; | |
940 | ||
941 | /** | |
942 | A font using the @c wxFONTFAMILY_SWISS family and 2 points smaller than | |
943 | ::wxNORMAL_FONT. | |
944 | */ | |
945 | wxFont wxSMALL_FONT; | |
946 | ||
947 | /** | |
948 | A font using the @c wxFONTFAMILY_ROMAN family and @c wxFONTSTYLE_ITALIC style and | |
949 | of the same size of ::wxNORMAL_FONT. | |
950 | */ | |
951 | wxFont wxITALIC_FONT; | |
952 | ||
953 | /** | |
954 | A font identic to ::wxNORMAL_FONT except for the family used which is | |
955 | @c wxFONTFAMILY_SWISS. | |
956 | */ | |
957 | wxFont wxSWISS_FONT; | |
958 | ||
959 | ||
960 | /** | |
961 | @class wxFontList | |
962 | ||
963 | A font list is a list containing all fonts which have been created. | |
964 | There is only one instance of this class: ::wxTheFontList. | |
965 | ||
966 | Use this object to search for a previously created font of the desired type | |
967 | and create it if not already found. | |
968 | ||
969 | In some windowing systems, the font may be a scarce resource, so it is best to | |
970 | reuse old resources if possible. When an application finishes, all fonts will | |
971 | be deleted and their resources freed, eliminating the possibility of 'memory | |
972 | leaks'. | |
973 | ||
974 | @library{wxcore} | |
975 | @category{gdi} | |
976 | ||
977 | @see wxFont | |
978 | */ | |
979 | class wxFontList : public wxList | |
980 | { | |
981 | public: | |
982 | /** | |
983 | Constructor. The application should not construct its own font list: | |
984 | use the object pointer ::wxTheFontList. | |
985 | */ | |
986 | wxFontList(); | |
987 | ||
988 | /** | |
989 | Finds a font of the given specification, or creates one and adds it to the | |
990 | list. See the @ref wxFont "wxFont constructor" for details of the arguments. | |
991 | */ | |
992 | wxFont* FindOrCreateFont(int point_size, wxFontFamily family, wxFontStyle style, | |
993 | wxFontWeight weight, bool underline = false, | |
994 | const wxString& facename = wxEmptyString, | |
995 | wxFontEncoding encoding = wxFONTENCODING_DEFAULT); | |
996 | }; | |
997 | ||
998 | ||
999 | /** | |
1000 | The global wxFontList instance. | |
1001 | */ | |
1002 | wxFontList* wxTheFontList; | |
1003 | ||
1004 | ||
1005 | // ============================================================================ | |
1006 | // Global functions/macros | |
1007 | // ============================================================================ | |
1008 | ||
1009 | /** @addtogroup group_funcmacro_misc */ | |
1010 | //@{ | |
1011 | ||
1012 | /** | |
1013 | Converts string to a wxFont best represented by the given string. Returns | |
1014 | @true on success. | |
1015 | ||
1016 | @see wxToString(const wxFont&) | |
1017 | ||
1018 | @header{wx/font.h} | |
1019 | */ | |
1020 | bool wxFromString(const wxString& string, wxFont* font); | |
1021 | ||
1022 | /** | |
1023 | Converts the given wxFont into a string. | |
1024 | ||
1025 | @see wxFromString(const wxString&, wxFont*) | |
1026 | ||
1027 | @header{wx/font.h} | |
1028 | */ | |
1029 | wxString wxToString(const wxFont& font); | |
1030 | ||
1031 | //@} | |
1032 |