1 /////////////////////////////////////////////////////////////////////////////
3 // Purpose: interface of wxFont
4 // Author: wxWidgets team
6 // Licence: wxWindows license
7 /////////////////////////////////////////////////////////////////////////////
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
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.
26 wxFONTFAMILY_UNKNOWN
= wxFONTFAMILY_MAX
34 wxFONTSTYLE_NORMAL
= wxNORMAL
,
35 wxFONTSTYLE_ITALIC
= wxITALIC
,
36 wxFONTSTYLE_SLANT
= wxSLANT
,
45 wxFONTWEIGHT_NORMAL
= wxNORMAL
, //!< Normal font.
46 wxFONTWEIGHT_LIGHT
= wxLIGHT
, //!< Light font.
47 wxFONTWEIGHT_BOLD
= wxBOLD
, //!< Bold font.
52 The font flag bits for the new font ctor accepting one combined flags word.
56 /// no special flags: font with default weight/slant/anti-aliasing
57 wxFONTFLAG_DEFAULT
= 0,
59 /// slant flags (default: no slant)
60 wxFONTFLAG_ITALIC
= 1 << 0,
61 wxFONTFLAG_SLANT
= 1 << 1,
63 /// weight flags (default: medium)
64 wxFONTFLAG_LIGHT
= 1 << 2,
65 wxFONTFLAG_BOLD
= 1 << 3,
67 /// anti-aliasing flag: force on or off (default: the current system default)
68 wxFONTFLAG_ANTIALIASED
= 1 << 4,
69 wxFONTFLAG_NOT_ANTIALIASED
= 1 << 5,
71 /// underlined/strikethrough flags (default: no lines)
72 wxFONTFLAG_UNDERLINED
= 1 << 6,
73 wxFONTFLAG_STRIKETHROUGH
= 1 << 7,
75 /// the mask of all currently used flags
76 wxFONTFLAG_MASK
= wxFONTFLAG_ITALIC
|
80 wxFONTFLAG_ANTIALIASED
|
81 wxFONTFLAG_NOT_ANTIALIASED
|
82 wxFONTFLAG_UNDERLINED
|
83 wxFONTFLAG_STRIKETHROUGH
93 /// Default system encoding.
94 wxFONTENCODING_SYSTEM
= -1, // system default
96 /// Default application encoding.
97 wxFONTENCODING_DEFAULT
, // current default encoding
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
,
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
125 // what would we do without Microsoft? They have their own encodings
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
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
,
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
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
,
197 // more CJK encodings (for historical reasons some are already declared
199 wxFONTENCODING_ISO2022_JP
, // ISO-2022-JP JIS encoding
201 wxFONTENCODING_MAX
, // highest enumerated encoding value
203 wxFONTENCODING_MACMIN
= wxFONTENCODING_MACROMAN
,
204 wxFONTENCODING_MACMAX
= wxFONTENCODING_MACKEYBOARD
,
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
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
,
223 // alternative names for Far Eastern encodings
225 wxFONTENCODING_GB2312
= wxFONTENCODING_CP936
, // Simplified Chinese
226 wxFONTENCODING_BIG5
= wxFONTENCODING_CP950
, // Traditional Chinese
228 // Japanese (see http://zsigri.tripod.com/fontboard/cjk/jis.html)
229 wxFONTENCODING_SHIFT_JIS
= wxFONTENCODING_CP932
// Shift JIS
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
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.
248 You can retrieve the current system font settings with wxSystemSettings.
254 ::wxNullFont, ::wxNORMAL_FONT, ::wxSMALL_FONT, ::wxITALIC_FONT, ::wxSWISS_FONT
256 @see @ref overview_font, wxDC::SetFont, wxDC::DrawText,
257 wxDC::GetTextExtent, wxFontDialog, wxSystemSettings
259 class wxFont
: public wxGDIObject
269 Copy constructor, uses @ref overview_refcount "reference counting".
271 wxFont(const wxFont
& font
);
274 Creates a font object with the specified attributes.
279 Font family, a generic way of referring to fonts without specifying actual
280 facename. One of the ::wxFontFamily enumeration values.
282 One of wxFONTSTYLE_NORMAL, wxFONTSTYLE_SLANT and wxFONTSTYLE_ITALIC.
284 Font weight, sometimes also referred to as font boldness. One of
285 the ::wxFontWeight enumeration values.
287 The value can be @true or @false.
288 At present this has an effect on Windows and Motif 2.x only.
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.
293 An encoding which may be one of the enumeration values of ::wxFontEncoding.
294 Briefly these can be summed up as:
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>
307 If the specified encoding isn't available, no font is created
308 (see also font encoding overview).
310 @remarks If the desired font does not exist, the closest match will be
311 chosen. Under Windows, only scalable TrueType fonts are used.
313 wxFont(int pointSize
, wxFontFamily family
, int style
,
315 const bool underline
= false,
316 const wxString
& faceName
= "",
317 wxFontEncoding encoding
= wxFONTENCODING_DEFAULT
);
320 Creates a font object with the specified attributes.
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.
328 Font family, a generic way of referring to fonts without specifying actual
329 facename. One of ::wxFontFamily enumeration values.
331 One of wxFONTSTYLE_NORMAL, wxFONTSTYLE_SLANT and wxFONTSTYLE_ITALIC.
333 Font weight, sometimes also referred to as font boldness.
334 One of the ::wxFontWeight enumeration values.
336 The value can be @true or @false.
337 At present this has an effect on Windows and Motif 2.x only.
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.
342 An encoding which may be one of the enumeration values of ::wxFontEncoding.
343 Briefly these can be summed up as:
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>
356 If the specified encoding isn't available, no font is created
357 (see also font encoding overview).
359 @remarks If the desired font does not exist, the closest match will be
360 chosen. Under Windows, only scalable TrueType fonts are used.
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
);
372 See @ref overview_refcount_destruct "reference-counted object destruction"
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.
384 Returns the current application's default encoding.
386 @see @ref overview_fontencoding, SetDefaultEncoding()
388 static wxFontEncoding
GetDefaultEncoding();
391 Returns the typeface name associated with the font, or the empty string if
392 there is no typeface information.
396 virtual wxString
GetFaceName() const;
399 Gets the font family. See SetFamily() for a list of valid
404 wxFontFamily
GetFamily() const;
407 Returns the platform-dependent string completely describing this font.
408 Returned string is always non-empty.
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.
413 @see SetNativeFontInfo(),GetNativeFontInfoUserDesc()
415 wxString
GetNativeFontInfoDesc() const;
418 Returns a user-friendly string for this font object.
419 Returned string is always non-empty.
421 Some examples of the formats of returned strings (which are platform-dependent)
422 are in SetNativeFontInfoUserDesc().
424 @see GetNativeFontInfoDesc()
426 wxString
GetNativeFontInfoUserDesc() const;
433 virtual int GetPointSize() const;
436 Gets the font style. See wxFontStyle for a list of valid styles.
440 wxFontStyle
GetStyle() const;
443 Returns @true if the font is underlined, @false otherwise.
447 virtual bool GetUnderlined() const;
450 Gets the font weight. See wxFontWeight for a list of valid weight identifiers.
454 wxFontWeight
GetWeight() const;
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.
460 virtual bool IsFixedWidth() const;
463 Returns @true if this object is a valid font, @false otherwise.
465 virtual bool IsOk() const;
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.
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.
476 static wxFont
* New(int pointSize
, wxFontFamily family
, int style
,
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
,
489 const bool underline
= false,
490 const wxString
& faceName
= "",
491 wxFontEncoding encoding
= wxFONTENCODING_DEFAULT
);
492 static wxFont
* New(const wxSize
& pixelSize
,
494 int flags
= wxFONTFLAG_DEFAULT
,
495 const wxString
& faceName
= "",
496 wxFontEncoding encoding
= wxFONTENCODING_DEFAULT
);
500 Sets the default font encoding.
502 @see @ref overview_fontencoding, GetDefaultEncoding()
504 static void SetDefaultEncoding(wxFontEncoding encoding
);
507 Sets the facename for the font.
508 Returns @true if the given face name exists; @false otherwise.
511 A valid facename, which should be on the end-user's system.
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.
520 @see GetFaceName(), SetFamily()
522 virtual bool SetFaceName(const wxString
& faceName
);
525 Sets the font family.
528 One of the ::wxFontFamily values.
530 @see GetFamily(), SetFaceName()
532 void SetFamily(wxFontFamily family
);
535 Creates the font corresponding to the given native font description string
536 which must have been previously returned by GetNativeFontInfoDesc().
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.
542 @return @true if the creation was successful.
544 @see SetNativeFontInfoUserDesc()
546 bool SetNativeFontInfo(const wxString
& info
);
549 Creates the font corresponding to the given native font description string and
550 returns @true if the creation was successful.
552 Unlike SetNativeFontInfo(), this function accepts strings which are user-friendly.
553 Examples of accepted string formats are:
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}
561 @todo add an example for wxMac
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).
567 @see SetNativeFontInfo()
569 bool SetNativeFontInfoUserDesc(const wxString
& info
);
579 virtual void SetPointSize(int pointSize
);
585 One of the ::wxFontStyle enumeration values.
589 void SetStyle(wxFontStyle style
);
595 @true to underline, @false otherwise.
599 void SetUnderlined(const bool underlined
);
602 Sets the font weight.
605 One of the ::wxFontWeight values.
609 void SetWeight(wxFontWeight weight
);
614 See @ref overview_refcount_equality "reference-counted object comparison" for
617 bool operator !=(const wxFont
& font
);
622 See @ref overview_refcount_equality "reference-counted object comparison" for
625 bool operator ==(const wxFont
& font
);
628 Assignment operator, using @ref overview_refcount "reference counting".
630 wxFont
& operator =(const wxFont
& font
);
640 Equivalent to wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT).
642 wxFont wxNORMAL_FONT
;
645 A font using the wxFONTFAMILY_SWISS family and 2 points smaller than
651 A font using the wxFONTFAMILY_ROMAN family and wxFONTSTYLE_ITALIC style and
652 of the same size of ::wxNORMAL_FONT.
654 wxFont wxITALIC_FONT
;
657 A font identic to ::wxNORMAL_FONT except for the family used which is
666 A font list is a list containing all fonts which have been created.
667 There is only one instance of this class: ::wxTheFontList.
669 Use this object to search for a previously created font of the desired type
670 and create it if not already found.
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
682 class wxFontList
: public wxList
686 Constructor. The application should not construct its own font list:
687 use the object pointer ::wxTheFontList.
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.
695 wxFont
* FindOrCreateFont(int point_size
, int family
, int style
,
697 bool underline
= false,
698 const wxString
& facename
= NULL
,
699 wxFontEncoding encoding
= wxFONTENCODING_DEFAULT
);
704 The global wxFontList instance.
706 wxFontList
* wxTheFontList
;
709 // ============================================================================
710 // Global functions/macros
711 // ============================================================================
713 /** @ingroup group_funcmacro_misc */
717 Converts string to a wxFont best represented by the given string. Returns
720 @see wxToString(const wxFont&)
724 bool wxFromString(const wxString
& string
, wxFont
* font
);
727 Converts the given wxFont into a string.
729 @see wxFromString(const wxString&, wxFont*)
733 wxString
wxToString(const wxFont
& font
);