// Purpose: interface of wxFont
// Author: wxWidgets team
// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
/**
- Standard font families: these may be used only for the font creation, it
- doesn't make sense to query an existing font for its font family as,
- especially if the font had been created from a native font description, it
- may be unknown.
+ Standard font families: these are used mainly during wxFont creation to specify
+ the generic properties of the font without hardcoding in the sources a specific
+ face name.
+
+ wxFontFamily thus allows to group the font face names of fonts with similar
+ properties. Most wxWidgets ports use lists of fonts for each font family
+ inspired by the data taken from http://www.codestyle.org/css/font-family.
*/
enum wxFontFamily
{
wxFONTFAMILY_DEFAULT = wxDEFAULT, //!< Chooses a default font.
+
wxFONTFAMILY_DECORATIVE = wxDECORATIVE, //!< A decorative font.
wxFONTFAMILY_ROMAN = wxROMAN, //!< A formal, serif font.
wxFONTFAMILY_SCRIPT = wxSCRIPT, //!< A handwriting font.
wxFONTFAMILY_SWISS = wxSWISS, //!< A sans-serif font.
- wxFONTFAMILY_MODERN = wxMODERN, //!< A fixed pitch font.
- wxFONTFAMILY_TELETYPE = wxTELETYPE, //!< A teletype font.
- wxFONTFAMILY_MAX,
- wxFONTFAMILY_UNKNOWN = wxFONTFAMILY_MAX
+
+ /// A fixed pitch font. Note that wxFont currently does not make distinctions
+ /// between @c wxFONTFAMILY_MODERN and @c wxFONTFAMILY_TELETYPE.
+ wxFONTFAMILY_MODERN = wxMODERN,
+
+ /// A teletype (i.e. monospaced) font.
+ /// Monospace fonts have a fixed width like typewriters and often have strong angular
+ /// or block serifs. Monospace font faces are often used code samples and have a simple,
+ /// functional font style.
+ /// See also wxFont::IsFixedWidth() for an easy way to test for monospace property.
+ wxFONTFAMILY_TELETYPE = wxTELETYPE,
+
+ /// Invalid font family value, returned by wxFont::GetFamily() when the
+ /// font is invalid for example.
+ wxFONTFAMILY_UNKNOWN
};
/**
*/
enum wxFontStyle
{
+ /// The font is drawn without slant.
wxFONTSTYLE_NORMAL = wxNORMAL,
+
+ /// The font is slanted in an italic style.
wxFONTSTYLE_ITALIC = wxITALIC,
+
+ /// The font is slanted, but in a roman style.
+ /// Note that under wxMSW this style is the same as @c wxFONTSTYLE_ITALIC.
wxFONTSTYLE_SLANT = wxSLANT,
+
wxFONTSTYLE_MAX
};
/**
Font encodings.
+
+ See wxFont::SetEncoding().
*/
enum wxFontEncoding
{
/// (this is used by wxEncodingConverter and wxUTFFile only for now)
wxFONTENCODING_UNICODE,
- // alternative names for Far Eastern encodings
- // Chinese
wxFONTENCODING_GB2312 = wxFONTENCODING_CP936, //!< Simplified Chinese
wxFONTENCODING_BIG5 = wxFONTENCODING_CP950, //!< Traditional Chinese
-
- // Japanese (see http://zsigri.tripod.com/fontboard/cjk/jis.html)
- wxFONTENCODING_SHIFT_JIS = wxFONTENCODING_CP932 //!< Shift JIS
+ wxFONTENCODING_SHIFT_JIS = wxFONTENCODING_CP932, //!< Shift JIS
+ wxFONTENCODING_EUC_KR = wxFONTENCODING_CP949 //!< Korean
};
class wxFont : public wxGDIObject
{
public:
- //@{
/**
Default ctor.
*/
Creates a font object with the specified attributes.
@param pointSize
- Size in points.
+ Size in points. See SetPointSize() for more info.
@param family
- Font family, a generic way of referring to fonts without specifying actual
- facename. One of the ::wxFontFamily enumeration values.
+ The font family: a generic portable way of referring to fonts without specifying a
+ facename. This parameter must be one of the ::wxFontFamily enumeration values.
+ If the @a faceName argument is provided, then it overrides the font family.
@param style
- One of wxFONTSTYLE_NORMAL, wxFONTSTYLE_SLANT and wxFONTSTYLE_ITALIC.
+ One of @c wxFONTSTYLE_NORMAL, @c wxFONTSTYLE_SLANT and @c wxFONTSTYLE_ITALIC.
@param weight
- Font weight, sometimes also referred to as font boldness. One of
- the ::wxFontWeight enumeration values.
+ Font weight, sometimes also referred to as font boldness.
+ One of the ::wxFontWeight enumeration values.
@param underline
The value can be @true or @false.
At present this has an effect on Windows and Motif 2.x only.
@param faceName
- An optional string specifying the actual typeface to be used.
- If it is an empty string, a default typeface will be chosen based on the family.
+ An optional string specifying the face name to be used.
+ If it is an empty string, a default face name will be chosen based on the family.
@param encoding
An encoding which may be one of the enumeration values of ::wxFontEncoding.
Briefly these can be summed up as:
<TABLE>
- <TR><TD>wxFONTENCODING_SYSTEM</TD><TD>Default system encoding.</TD></TR>
- <TR><TD>wxFONTENCODING_DEFAULT</TD><TD>
- Default application encoding: this
- is the encoding set by calls to
- SetDefaultEncoding and which may be set to,
- say, KOI8 to create all fonts by default with KOI8 encoding. Initially, the
- default application encoding is the same as default system encoding.</TD></TR>
- <TR><TD>wxFONTENCODING_ISO8859_1...15</TD><TD>ISO8859 encodings.</TD></TR>
- <TR><TD>wxFONTENCODING_KOI8</TD><TD>The standard Russian encoding for Internet.</TD></TR>
- <TR><TD>wxFONTENCODING_CP1250...1252</TD><TD>Windows encodings similar to ISO8859 (but not identical).</TD></TR>
+ <TR><TD>@c wxFONTENCODING_SYSTEM</TD><TD>Default system encoding.</TD></TR>
+ <TR><TD>@c wxFONTENCODING_DEFAULT</TD><TD>
+ Default application encoding: this is the encoding set by calls to
+ SetDefaultEncoding() and which may be set to, say, KOI8 to create all
+ fonts by default with KOI8 encoding. Initially, the default application
+ encoding is the same as default system encoding.</TD></TR>
+ <TR><TD>@c wxFONTENCODING_ISO8859_1...15</TD><TD>ISO8859 encodings.</TD></TR>
+ <TR><TD>@c wxFONTENCODING_KOI8</TD><TD>The standard Russian encoding for Internet.</TD></TR>
+ <TR><TD>@c wxFONTENCODING_CP1250...1252</TD><TD>Windows encodings similar to ISO8859 (but not identical).</TD></TR>
</TABLE>
If the specified encoding isn't available, no font is created
- (see also font encoding overview).
+ (see also @ref overview_fontencoding).
@remarks If the desired font does not exist, the closest match will be
chosen. Under Windows, only scalable TrueType fonts are used.
Creates a font object with the specified attributes.
@param pixelSize
- Size in pixels: this is directly supported only under MSW currently
- where this constructor can be used directly, under other platforms a
- font with the closest size to the given one is found using binary search
- and the static New method must be used.
+ Size in pixels. See SetPixelSize() for more info.
@param family
- Font family, a generic way of referring to fonts without specifying actual
- facename. One of ::wxFontFamily enumeration values.
+ The font family: a generic portable way of referring to fonts without specifying a
+ facename. This parameter must be one of the ::wxFontFamily enumeration values.
+ If the @a faceName argument is provided, then it overrides the font family.
@param style
- One of wxFONTSTYLE_NORMAL, wxFONTSTYLE_SLANT and wxFONTSTYLE_ITALIC.
+ One of @c wxFONTSTYLE_NORMAL, @c wxFONTSTYLE_SLANT and @c wxFONTSTYLE_ITALIC.
@param weight
Font weight, sometimes also referred to as font boldness.
One of the ::wxFontWeight enumeration values.
The value can be @true or @false.
At present this has an effect on Windows and Motif 2.x only.
@param faceName
- An optional string specifying the actual typeface to be used.
- If it is an empty string, a default typeface will be chosen based on the family.
+ An optional string specifying the face name to be used.
+ If it is an empty string, a default face name will be chosen based on the family.
@param encoding
An encoding which may be one of the enumeration values of ::wxFontEncoding.
Briefly these can be summed up as:
<TABLE>
- <TR><TD>wxFONTENCODING_SYSTEM</TD><TD>Default system encoding.</TD></TR>
- <TR><TD>wxFONTENCODING_DEFAULT</TD><TD>
- Default application encoding: this
- is the encoding set by calls to
- SetDefaultEncoding and which may be set to,
- say, KOI8 to create all fonts by default with KOI8 encoding. Initially, the
- default application encoding is the same as default system encoding.</TD></TR>
- <TR><TD>wxFONTENCODING_ISO8859_1...15</TD><TD>ISO8859 encodings.</TD></TR>
- <TR><TD>wxFONTENCODING_KOI8</TD><TD>The standard Russian encoding for Internet.</TD></TR>
- <TR><TD>wxFONTENCODING_CP1250...1252</TD><TD>Windows encodings similar to ISO8859 (but not identical).</TD></TR>
+ <TR><TD>@c wxFONTENCODING_SYSTEM</TD><TD>Default system encoding.</TD></TR>
+ <TR><TD>@c wxFONTENCODING_DEFAULT</TD><TD>
+ Default application encoding: this is the encoding set by calls to
+ SetDefaultEncoding() and which may be set to, say, KOI8 to create all
+ fonts by default with KOI8 encoding. Initially, the default application
+ encoding is the same as default system encoding.</TD></TR>
+ <TR><TD>@c wxFONTENCODING_ISO8859_1...15</TD><TD>ISO8859 encodings.</TD></TR>
+ <TR><TD>@c wxFONTENCODING_KOI8</TD><TD>The standard Russian encoding for Internet.</TD></TR>
+ <TR><TD>@c wxFONTENCODING_CP1250...1252</TD><TD>Windows encodings similar to ISO8859 (but not identical).</TD></TR>
</TABLE>
If the specified encoding isn't available, no font is created
- (see also font encoding overview).
+ (see also @ref overview_fontencoding).
@remarks If the desired font does not exist, the closest match will be
chosen. Under Windows, only scalable TrueType fonts are used.
bool underline = false,
const wxString& faceName = wxEmptyString,
wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
- //@}
+
+ /**
+ Constructor from font description string.
+
+ This constructor uses SetNativeFontInfo() to initialize the font.
+ If @a fontdesc is invalid the font remains uninitialized, i.e. its IsOk() method
+ will return @false.
+ */
+ wxFont(const wxString& fontdesc);
/**
Destructor.
*/
virtual ~wxFont();
+
/**
- Returns the current application's default encoding.
+ @name Getters
+ */
+ //@{
- @see @ref overview_fontencoding, SetDefaultEncoding()
+ /**
+ Returns the encoding of this font.
+
+ Note that under wxGTK the returned value is always @c wxFONTENCODING_UTF8.
+
+ @see SetEncoding()
*/
- static wxFontEncoding GetDefaultEncoding();
+ virtual wxFontEncoding GetEncoding() const;
/**
- Returns the typeface name associated with the font, or the empty string if
- there is no typeface information.
+ Returns the face name associated with the font, or the empty string if
+ there is no face information.
@see SetFaceName()
*/
virtual wxString GetFaceName() const;
/**
- Gets the font family. See SetFamily() for a list of valid
- family identifiers.
+ Gets the font family if possible.
+
+ As described in ::wxFontFamily docs the returned value acts as a rough,
+ basic classification of the main font properties (look, spacing).
+
+ If the current font face name is not recognized by wxFont or by the
+ underlying system, @c wxFONTFAMILY_DEFAULT is returned.
+
+ Note that currently this function is not very precise and so not
+ particularly useful. Font families mostly make sense only for font
+ creation, see SetFamily().
@see SetFamily()
*/
/**
Returns the platform-dependent string completely describing this font.
- Returned string is always non-empty.
+
+ Returned string is always non-empty unless the font is invalid (in
+ which case an assert is triggered).
Note that the returned string is not meant to be shown or edited by the user: a
typical use of this function is for serializing in string-form a wxFont object.
- @see SetNativeFontInfo(),GetNativeFontInfoUserDesc()
+ @see SetNativeFontInfo(), GetNativeFontInfoUserDesc()
*/
wxString GetNativeFontInfoDesc() const;
/**
Returns a user-friendly string for this font object.
- Returned string is always non-empty.
+
+ Returned string is always non-empty unless the font is invalid (in
+ which case an assert is triggered).
+
+ The string does not encode all wxFont infos under all platforms;
+ e.g. under wxMSW the font family is not present in the returned string.
Some examples of the formats of returned strings (which are platform-dependent)
are in SetNativeFontInfoUserDesc().
- @see GetNativeFontInfoDesc()
+ @see SetNativeFontInfoUserDesc(), GetNativeFontInfoDesc()
*/
wxString GetNativeFontInfoUserDesc() const;
virtual int GetPointSize() const;
/**
- Gets the font style. See wxFontStyle for a list of valid styles.
+ Gets the pixel size.
+
+ Note that under wxMSW if you passed to SetPixelSize() (or to the ctor)
+ a wxSize object with a null width value, you'll get a null width in
+ the returned object.
+
+ @see SetPixelSize()
+ */
+ virtual wxSize GetPixelSize() const;
+
+ /**
+ Gets the font style. See ::wxFontStyle for a list of valid styles.
@see SetStyle()
*/
virtual bool GetUnderlined() const;
/**
- Gets the font weight. See wxFontWeight for a list of valid weight identifiers.
+ Gets the font weight. See ::wxFontWeight for a list of valid weight identifiers.
@see SetWeight()
*/
/**
Returns @true if the font is a fixed width (or monospaced) font,
@false if it is a proportional one or font is invalid.
+
+ Note that this function under some platforms is different than just testing
+ for the font family being equal to @c wxFONTFAMILY_TELETYPE because native
+ platform-specific functions are used for the check (resulting in a more
+ accurate return value).
*/
virtual bool IsFixedWidth() const;
*/
virtual bool IsOk() const;
+ //@}
+
+
+ /**
+ @name Similar fonts creation
+
+ The functions in this section either modify the font in place or create
+ a new font similar to the given one but with its weight, style or size
+ changed.
+ */
//@{
+
/**
- These functions take the same parameters as
- @ref wxFont::wxFont "wxFont constructors" and return a new font
- object allocated on the heap.
+ Returns a bold version of this font.
+
+ @see MakeBold()
+
+ @since 2.9.1
+ */
+ wxFont Bold() const;
+
+ /**
+ Returns an italic version of this font.
+
+ @see MakeItalic()
+
+ @since 2.9.1
+ */
+ wxFont Italic() const;
+
+ /**
+ Returns a larger version of this font.
+
+ The font size is multiplied by @c 1.2, the factor of @c 1.2 being
+ inspired by the W3C CSS specification.
+
+ @see MakeLarger(), Smaller(), Scaled()
+
+ @since 2.9.1
+ */
+ wxFont Larger() const;
+
+ /**
+ Returns a smaller version of this font.
+
+ The font size is divided by @c 1.2, the factor of @c 1.2 being
+ inspired by the W3C CSS specification.
+
+ @see MakeSmaller(), Larger(), Scaled()
+
+ @since 2.9.1
+ */
+ wxFont Smaller() const;
+
+ /**
+ Changes this font to be bold.
+
+ @see Bold()
+
+ @since 2.9.1
+ */
+ wxFont& MakeBold();
+
+ /**
+ Changes this font to be italic.
+
+ @see Italic()
+
+ @since 2.9.1
+ */
+ wxFont& MakeItalic();
+
+ /**
+ Changes this font to be larger.
+
+ The font size is multiplied by @c 1.2, the factor of @c 1.2 being
+ inspired by the W3C CSS specification.
+
+ @see Larger(), MakeSmaller(), Scale()
+
+ @since 2.9.1
+ */
+ wxFont& MakeLarger();
+
+ /**
+ Changes this font to be smaller.
+
+ The font size is divided by @c 1.2, the factor of @c 1.2 being
+ inspired by the W3C CSS specification.
+
+ @see Smaller(), MakeLarger(), Scale()
+
+ @since 2.9.1
+ */
+ wxFont& MakeSmaller();
+
+ /**
+ Changes the size of this font.
+
+ The font size is multiplied by the given factor (which may be less than
+ 1 to create a smaller version of the font).
+
+ @see Scaled(), MakeLarger(), MakeSmaller()
+
+ @since 2.9.1
+ */
+ wxFont& Scale(float x);
+
+ /**
+ Returns a scaled version of this font.
+
+ The font size is multiplied by the given factor (which may be less than
+ 1 to create a smaller version of the font).
+
+ @see Scale(), Larger(), Smaller()
+
+ @since 2.9.1
+ */
+ wxFont Scaled(float x) const;
- Using @c New() is currently the only way to directly create a font with
- the given size in pixels on platforms other than wxMSW.
- */
- static wxFont* New(int pointSize, wxFontFamily family, wxFontStyle style,
- wxFontWeight weight,
- bool underline = false,
- const wxString& faceName = wxEmptyString,
- wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
- static wxFont* New(int pointSize, wxFontFamily family,
- int flags = wxFONTFLAG_DEFAULT,
- const wxString& faceName = wxEmptyString,
- wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
- static wxFont* New(const wxSize& pixelSize,
- wxFontFamily family,
- wxFontStyle style,
- wxFontWeight weight,
- bool underline = false,
- const wxString& faceName = wxEmptyString,
- wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
- static wxFont* New(const wxSize& pixelSize,
- wxFontFamily family,
- int flags = wxFONTFLAG_DEFAULT,
- const wxString& faceName = wxEmptyString,
- wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
//@}
/**
- Sets the default font encoding.
+ @name Setters
- @see @ref overview_fontencoding, GetDefaultEncoding()
+ These functions internally recreate the native font object with the new
+ specified property.
*/
- static void SetDefaultEncoding(wxFontEncoding encoding);
+ //@{
+
+ /**
+ Sets the encoding for this font.
+
+ Note that under wxGTK this function has no effect (because the underlying
+ Pango library always uses @c wxFONTENCODING_UTF8).
+
+ @see GetEncoding()
+ */
+ virtual void SetEncoding(wxFontEncoding encoding);
/**
Sets the facename for the font.
- Returns @true if the given face name exists; @false otherwise.
@param faceName
A valid facename, which should be on the end-user's system.
@remarks To avoid portability problems, don't rely on a specific face,
- but specify the font family instead or as well.
- A suitable font will be found on the end-user's system.
- If both the family and the facename are specified,
- wxWidgets will first search for the specific face, and
- then for a font belonging to the same family.
+ but specify the font family instead (see ::wxFontFamily and SetFamily()).
+
+ @return @true if the given face name exists; if the face name doesn't exist
+ in the user's system then the font is invalidated (so that IsOk() will
+ return @false) and @false is returned.
@see GetFaceName(), SetFamily()
*/
/**
Sets the font family.
+ As described in ::wxFontFamily docs the given @a family value acts as a rough,
+ basic indication of the main font properties (look, spacing).
+
+ Note that changing the font family results in changing the font face name.
+
@param family
One of the ::wxFontFamily values.
@beginTable
@hdr3col{platform, generic syntax, example}
- @row3col{wxGTK2, @c [FACE-NAME] [bold] [oblique|italic] [POINTSIZE], Monospace bold 10}
- @row3col{wxMSW, @c [light|bold] [italic] [FACE-NAME] [POINTSIZE] [ENCODING], Tahoma 10 WINDOWS-1252}
+ @row3col{wxGTK2, <tt>[FACE-NAME] [bold] [oblique|italic] [POINTSIZE]</tt>, Monospace bold 10}
+ @row3col{wxMSW, <tt>[light|bold] [italic] [FACE-NAME] [POINTSIZE] [ENCODING]</tt>, Tahoma 10 WINDOWS-1252}
@endTable
@todo add an example for wxMac
documentation of the native API used for font-rendering
(e.g. @c pango_font_description_from_string on GTK).
+ Note that unlike SetNativeFontInfo(), this function doesn't always restore all
+ attributes of the wxFont object under all platforms; e.g. on wxMSW the font family
+ is not restored (because GetNativeFontInfoUserDesc doesn't return it on wxMSW).
+ If you want to serialize/deserialize a font in string form, you should use
+ GetNativeFontInfoDesc() and SetNativeFontInfo() instead.
+
@see SetNativeFontInfo()
*/
bool SetNativeFontInfoUserDesc(const wxString& info);
/**
Sets the point size.
+ The <em>point size</em> is defined as 1/72 of the anglo-Saxon inch
+ (25.4 mm): it is approximately 0.0139 inch or 352.8 um.
+
@param pointSize
Size in points.
*/
virtual void SetPointSize(int pointSize);
+ /**
+ Sets the pixel size.
+
+ The height parameter of @a pixelSize must be positive while the width
+ parameter may also be zero (to indicate that you're not interested in the
+ width of the characters: a suitable width will be chosen for best rendering).
+
+ This feature (specifying the font pixel size) is directly supported only
+ under wxMSW and wxGTK currently; under other platforms a font with the
+ closest size to the given one is found using binary search (this maybe slower).
+
+ @see GetPixelSize()
+ */
+ virtual void SetPixelSize(const wxSize& pixelSize);
+
/**
Sets the font style.
*/
virtual void SetWeight(wxFontWeight weight);
+ //@}
+
+
/**
Inequality operator.
Assignment operator, using @ref overview_refcount "reference counting".
*/
wxFont& operator =(const wxFont& font);
+
+
+ // statics
+
+ /**
+ Returns the current application's default encoding.
+
+ @see @ref overview_fontencoding, SetDefaultEncoding()
+ */
+ static wxFontEncoding GetDefaultEncoding();
+
+ /**
+ Sets the default font encoding.
+
+ @see @ref overview_fontencoding, GetDefaultEncoding()
+ */
+ static void SetDefaultEncoding(wxFontEncoding encoding);
+
+ //@{
+ /**
+ This function takes the same parameters as the relative
+ @ref wxFont::wxFont "wxFont constructor" and returns a new font
+ object allocated on the heap.
+ */
+ static wxFont* New(int pointSize, wxFontFamily family, wxFontStyle style,
+ wxFontWeight weight,
+ bool underline = false,
+ const wxString& faceName = wxEmptyString,
+ wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
+ static wxFont* New(int pointSize, wxFontFamily family,
+ int flags = wxFONTFLAG_DEFAULT,
+ const wxString& faceName = wxEmptyString,
+ wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
+ static wxFont* New(const wxSize& pixelSize,
+ wxFontFamily family,
+ wxFontStyle style,
+ wxFontWeight weight,
+ bool underline = false,
+ const wxString& faceName = wxEmptyString,
+ wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
+ static wxFont* New(const wxSize& pixelSize,
+ wxFontFamily family,
+ int flags = wxFONTFLAG_DEFAULT,
+ const wxString& faceName = wxEmptyString,
+ wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
+ //@}
};
/**
Equivalent to wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT).
+
+ @see wxSystemSettings
*/
wxFont wxNORMAL_FONT;
/**
- A font using the wxFONTFAMILY_SWISS family and 2 points smaller than
+ A font using the @c wxFONTFAMILY_SWISS family and 2 points smaller than
::wxNORMAL_FONT.
*/
wxFont wxSMALL_FONT;
/**
- A font using the wxFONTFAMILY_ROMAN family and wxFONTSTYLE_ITALIC style and
+ A font using the @c wxFONTFAMILY_ROMAN family and @c wxFONTSTYLE_ITALIC style and
of the same size of ::wxNORMAL_FONT.
*/
wxFont wxITALIC_FONT;
/**
A font identic to ::wxNORMAL_FONT except for the family used which is
- wxFONTFAMILY_SWISS.
+ @c wxFONTFAMILY_SWISS.
*/
wxFont wxSWISS_FONT;
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