QtGui.QFont Class Reference

The QFont class specifies a font used for drawing text. More...

Inheritance diagram for QtGui.QFont:

Collaboration diagram for QtGui.QFont:

Public Types
enum	Capitalization {   AllLowercase = 2, AllUppercase = 1, Capitalize = 4, MixedCase = 0,   SmallCaps = 3 }
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enum	HintingPreference { PreferDefaultHinting = 0, PreferFullHinting = 3, PreferNoHinting = 1, PreferVerticalHinting = 2 }
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enum	ResolveProperties {   AllPropertiesResolved = 131071, CapitalizationResolved = 4096, FamilyResolved = 1, FixedPitchResolved = 512,   HintingPreferenceResolved = 32768, KerningResolved = 2048, LetterSpacingResolved = 8192, OverlineResolved = 128,   SizeResolved = 2, StretchResolved = 1024, StrikeOutResolved = 256, StyleHintResolved = 4,   StyleNameResolved = 65536, StyleResolved = 32, StyleStrategyResolved = 8, UnderlineResolved = 64,   WeightResolved = 16, WordSpacingResolved = 16384 }
enum	SpacingType { AbsoluteSpacing = 1, PercentageSpacing = 0 }
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enum	Stretch {   Condensed = 75, Expanded = 125, ExtraCondensed = 62, ExtraExpanded = 150,   SemiCondensed = 87, SemiExpanded = 112, UltraCondensed = 50, UltraExpanded = 200,   Unstretched = 100 }
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enum	Style { StyleItalic = 1, StyleNormal = 0, StyleOblique = 2 }
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enum	StyleHint {   AnyStyle = 5, Courier = 2, Cursive = 6, Decorative = 3,   Fantasy = 8, Helvetica = 0, Monospace = 7, OldEnglish = 3,   SansSerif = 0, Serif = 1, System = 4, Times = 1,   TypeWriter = 2 }
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enum	StyleStrategy {   ForceIntegerMetrics = 1024, ForceOutline = 16, NoAntialias = 256, NoFontMerging = 32768,   OpenGLCompatible = 512, PreferAntialias = 128, PreferBitmap = 2, PreferDefault = 1,   PreferDevice = 4, PreferMatch = 32, PreferOutline = 8, PreferQuality = 64 }
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enum	Weight {   Black = 87, Bold = 75, DemiBold = 63, Light = 25,   Normal = 50 }
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Public Member Functions
override bool	Equals (object o)
override int	GetHashCode ()
	QFont ()
	QFont (QFont arg1)
	QFont (QFont arg1, IQPaintDevice pd)
	QFont (string family, int pointSize=-1, int weight=-1, bool italic=false)
virtual void	CreateProxy ()
new string	DefaultFamily ()
new bool	ExactMatch ()
new bool	FromString (string arg1)
new System.IntPtr	Handle ()
new bool	IsCopyOf (QFont arg1)
new string	Key ()
new string	LastResortFamily ()
new string	LastResortFont ()
new double	LetterSpacing ()
new QFont.SpacingType	LetterSpacingType ()
new uint	Resolve ()
new QFont	Resolve (QFont arg1)
new void	Resolve (uint mask)
new void	SetLetterSpacing (QFont.SpacingType type, double spacing)
new void	SetStyleHint (QFont.StyleHint arg1, QFont.StyleStrategy arg2=QFont.StyleStrategy.PreferDefault)
override string	ToString ()
new void	Dispose ()

Static Public Member Functions
static void	CacheStatistics ()
static void	Cleanup ()
static void	Initialize ()
static void	InsertSubstitution (string arg1, string arg2)
static void	InsertSubstitutions (string arg1, System.Collections.Generic.List< string > arg2)
static bool	operator!= (QFont arg1, QFont arg2)
static bool	operator< (QFont arg1, QFont arg2)
static bool	operator== (QFont arg1, QFont arg2)
static void	RemoveSubstitution (string arg1)
static string	Substitute (string arg1)
static System.Collections.Generic.List < string >	Substitutes (string arg1)
static System.Collections.Generic.List < string >	Substitutions ()
static bool	operator> (QFont arg1, QFont arg2)

Protected Member Functions
	QFont (System.Type dummy)

Protected Attributes
SmokeInvocation	interceptor

Properties
new bool	Bold [get, set]
new QFont.Capitalization	capitalization [get, set]
new string	Family [get, set]
new bool	FixedPitch [get, set]
new QFont.HintingPreference	hintingPreference [get, set]
new bool	Italic [get, set]
new bool	Kerning [get, set]
new bool	Overline [get, set]
new int	PixelSize [get, set]
new int	PointSize [get, set]
new double	PointSizeF [get, set]
new bool	RawMode [get, set]
new string	RawName [get, set]
new int	stretch [get, set]
new bool	StrikeOut [get, set]
new QFont.Style	style [get, set]
new string	StyleName [get, set]
new QFont.StyleStrategy	styleStrategy [get, set]
new bool	Underline [get, set]
new int	weight [get, set]
new double	WordSpacing [get, set]
new QFont.StyleHint	styleHint [get]
virtual System.IntPtr	SmokeObject [get, set]
static new QMetaObject	StaticMetaObject [get]

Detailed Description

The QFont class specifies a font used for drawing text.

When you create a QFont object you specify various attributes that you want the font to have. Qt will use the font with the specified attributes, or if no matching font exists, Qt will use the closest matching installed font. The attributes of the font that is actually used are retrievable from a QFontInfo object. If the window system provides an exact match exactMatch() returns true. Use QFontMetrics to get measurements, e.g. the pixel length of a string using QFontMetrics::width().

Note that a QApplication instance must exist before a QFont can be used. You can set the application's default font with QApplication::setFont().

If a chosen font does not include all the characters that need to be displayed, QFont will try to find the characters in the nearest equivalent fonts. When a QPainter draws a character from a font the QFont will report whether or not it has the character; if it does not, QPainter will draw an unfilled square.

Create QFonts like this:

QFont serifFont("Times", 10, QFont::Bold);

QFont sansFont("Helvetica [Cronyx]", 12);

The attributes set in the constructor can also be set later, e.g. setFamily(), setPointSize(), setPointSizeFloat(), setWeight() and setItalic(). The remaining attributes must be set after contstruction, e.g. setBold(), setUnderline(), setOverline(), setStrikeOut() and setFixedPitch(). QFontInfo objects should be created after the font's attributes have been set. A QFontInfo object will not change, even if you change the font's attributes. The corresponding "get" functions, e.g. family(), pointSize(), etc., return the values that were set, even though the values used may differ. The actual values are available from a QFontInfo object.

If the requested font family is unavailable you can influence the font matching algorithm by choosing a particular QFont::StyleHint and QFont::StyleStrategy with setStyleHint(). The default family (corresponding to the current style hint) is returned by defaultFamily().

The font-matching algorithm has a lastResortFamily() and lastResortFont() in cases where a suitable match cannot be found. You can provide substitutions for font family names using insertSubstitution() and insertSubstitutions(). Substitutions can be removed with removeSubstitution(). Use substitute() to retrieve a family's first substitute, or the family name itself if it has no substitutes. Use substitutes() to retrieve a list of a family's substitutes (which may be empty).

Every QFont has a key() which you can use, for example, as the key in a cache or dictionary. If you want to store a user's font preferences you could use QSettings, writing the font information with toString() and reading it back with fromString(). The operator<<() and operator>>() functions are also available, but they work on a data stream.

It is possible to set the height of characters shown on the screen to a specified number of pixels with setPixelSize(); however using setPointSize() has a similar effect and provides device independence.

In X11 you can set a font using its system specific name with setRawName().

Loading fonts can be expensive, especially on X11. QFont contains extensive optimizations to make the copying of QFont objects fast, and to cache the results of the slow window system functions it depends upon.

The font matching algorithm works as follows:

The specified font family is searched for.

If not found, the styleHint() is used to select a replacement family.

Each replacement font family is searched for.

If none of these are found or there was no styleHint(), "helvetica" will be searched for.

If "helvetica" isn't found Qt will try the lastResortFamily().

If the lastResortFamily() isn't found Qt will try the lastResortFont() which will always return a name of some kind.

Note that the actual font matching algorithm varies from platform to platform.

In Windows a request for the "Courier" font is automatically changed to "Courier New", an improved version of Courier that allows for smooth scaling. The older "Courier" bitmap font can be selected by setting the PreferBitmap style strategy (see setStyleStrategy()).

Once a font is found, the remaining attributes are matched in order of priority:

fixedPitch()

pointSize() (see below)

weight()

style()

If you have a font which matches on family, even if none of the other attributes match, this font will be chosen in preference to a font which doesn't match on family but which does match on the other attributes. This is because font family is the dominant search criteria.

The point size is defined to match if it is within 20% of the requested point size. When several fonts match and are only distinguished by point size, the font with the closest point size to the one requested will be chosen.

The actual family, font size, weight and other font attributes used for drawing text will depend on what's available for the chosen family under the window system. A QFontInfo object can be used to determine the actual values used for drawing the text.

Examples:

QFont f("Helvetica");

If you had both an Adobe and a Cronyx Helvetica, you might get either.

QFont f("Helvetica [Cronyx]");

You can specify the foundry you want in the family name. The font f in the above example will be set to "Helvetica [Cronyx]".

To determine the attributes of the font actually used in the window system, use a QFontInfo object, e.g.

QFontInfo info(f1);

QString family = info.family();

To find out font metrics use a QFontMetrics object, e.g.

QFontMetrics fm(f1);

int textWidthInPixels = fm.width("How many pixels wide is this text?");

int textHeightInPixels = fm.height();

For more general information on fonts, see the comp.fonts FAQ. Information on encodings can be found from Roman Czyborra's page.

See also QFontComboBox, QFontMetrics, QFontInfo, QFontDatabase, and Character Map Example.

Member Enumeration Documentation

enum QtGui.QFont.Capitalization

Rendering option for text this font applies to.

This enum was introduced or modified in Qt 4.4.

Enumerator:

AllLowercase	This alters the text to be rendered in all lowercase type.
AllUppercase	This alters the text to be rendered in all uppercase type.
Capitalize	This alters the text to be rendered with the first character of each word as an uppercase character.
MixedCase	This is the normal text rendering option where no capitalization change is applied.
SmallCaps	This alters the text to be rendered in small-caps type.

enum QtGui.QFont.HintingPreference

This enum describes the different levels of hinting that can be applied to glyphs to improve legibility on displays where it might be warranted by the density of pixels.

Please note that this enum only describes a preference, as the full range of hinting levels are not supported on all of Qt's supported platforms. The following table details the effect of a given hinting preference on a selected set of target platforms.

PreferDefaultHintingPreferNoHintingPreferVerticalHintingPreferFullHinting

Windows Vista (w/o Platform Update) and earlier Full hinting Full hinting Full hinting Full hinting

Windows 7 and Windows Vista (w/Platform Update) and DirectWrite enabled in Qt Full hinting Vertical hinting Vertical hinting Full hinting

FreeType Operating System setting No hinting Vertical hinting (light) Full hinting

Cocoa on Mac OS X No hinting No hinting No hinting No hinting

Note: Please be aware that altering the hinting preference on Windows is available through the DirectWrite font engine. This is available on Windows Vista after installing the platform update, and on Windows 7. In order to use this extension, configure Qt using -directwrite. The target application will then depend on the availability of DirectWrite on the target system.

This enum was introduced or modified in Qt 4.8.

Enumerator:

PreferDefaultHinting	Use the default hinting level for the target platform.
PreferFullHinting	If possible, render text with hinting in both horizontal and vertical directions. The text will be altered to optimize legibility on the target device, but since the metrics will depend on the target size of the text, the positions of glyphs, line breaks, and other typographical detail will not scale, meaning that a text layout may look different on devices with different pixel densities.
PreferNoHinting	If possible, render text without hinting the outlines of the glyphs. The text layout will be typographically accurate and scalable, using the same metrics as are used e.g. when printing.
PreferVerticalHinting	If possible, render text with no horizontal hinting, but align glyphs to the pixel grid in the vertical direction. The text will appear crisper on displays where the density is too low to give an accurate rendering of the glyphs. But since the horizontal metrics of the glyphs are unhinted, the text's layout will be scalable to higher density devices (such as printers) without impacting details such as line breaks.

enum QtGui.QFont.ResolveProperties

Enumerator:

AllPropertiesResolved
CapitalizationResolved
FamilyResolved
FixedPitchResolved
HintingPreferenceResolved
KerningResolved
LetterSpacingResolved
OverlineResolved
SizeResolved
StretchResolved
StrikeOutResolved
StyleHintResolved
StyleNameResolved
StyleResolved
StyleStrategyResolved
UnderlineResolved
WeightResolved
WordSpacingResolved

enum QtGui.QFont.SpacingType

This enum was introduced or modified in Qt 4.4.

Enumerator:

AbsoluteSpacing	A positive value increases the letter spacing by the corresponding pixels; a negative value decreases the spacing.
PercentageSpacing	A value of 100 will keep the spacing unchanged; a value of 200 will enlarge the spacing after a character by the width of the character itself.

enum QtGui.QFont.Stretch

Predefined stretch values that follow the CSS naming convention. The higher the value, the more stretched the text is.

See also setStretch() and stretch().

Enumerator:

Condensed	75
Expanded	125
ExtraCondensed	62
ExtraExpanded	150
SemiCondensed	87
SemiExpanded	112
UltraCondensed	50
UltraExpanded	200
Unstretched	100

enum QtGui.QFont.Style

This enum describes the different styles of glyphs that are used to display text.

See also Weight.

Enumerator:

StyleItalic	Italic glyphs that are specifically designed for the purpose of representing italicized text.
StyleNormal	Normal glyphs used in unstyled text.
StyleOblique	Glyphs with an italic appearance that are typically based on the unstyled glyphs, but are not fine-tuned for the purpose of representing italicized text.

enum QtGui.QFont.StyleHint

Style hints are used by the font matching algorithm to find an appropriate default family if a selected font family is not available.

Enumerator:

AnyStyle	Leaves the font matching algorithm to choose the family. This is the default.
Courier	A synonym for TypeWriter.
Cursive	The font matcher prefers fonts that map to the CSS generic font-family 'cursive'.
Decorative	Is a synonym for OldEnglish.
Fantasy	The font matcher prefers fonts that map to the CSS generic font-family 'fantasy'.
Helvetica	Is a synonym for SansSerif.
Monospace	The font matcher prefers fonts that map to the CSS generic font-family 'monospace'.
OldEnglish	The font matcher prefers decorative fonts.
SansSerif	The font matcher prefer sans serif fonts.
Serif	The font matcher prefers serif fonts.
System	The font matcher prefers system fonts.
Times	Is a synonym for Serif.
TypeWriter	The font matcher prefers fixed pitch fonts.

enum QtGui.QFont.StyleStrategy

The style strategy tells the font matching algorithm what type of fonts should be used to find an appropriate default family.

The following strategies are available:

Any of these may be OR-ed with one of these flags:

Enumerator:

ForceIntegerMetrics	Forces the use of integer values in font engines that support fractional font metrics.
ForceOutline	Forces the use of outline fonts.
NoAntialias	Don't antialias the fonts.
NoFontMerging	If the font selected for a certain writing system does not contain a character requested to draw, then Qt automatically chooses a similar looking font that contains the character. The NoFontMerging flag disables this feature. Please note that enabling this flag will not prevent Qt from automatically picking a suitable font when the selected font does not support the writing system of the text.
OpenGLCompatible	Forces the use of OpenGL compatible fonts.
PreferAntialias	Antialias if possible.
PreferBitmap	Prefers bitmap fonts (as opposed to outline fonts).
PreferDefault	The default style strategy. It does not prefer any type of font.
PreferDevice	Prefers device fonts.
PreferMatch	Prefer an exact match. The font matcher will try to use the exact font size that has been specified.
PreferOutline	Prefers outline fonts (as opposed to bitmap fonts).
PreferQuality	Prefer the best quality font. The font matcher will use the nearest standard point size that the font supports.

enum QtGui.QFont.Weight

Qt uses a weighting scale from 0 to 99 similar to, but not the same as, the scales used in Windows or CSS. A weight of 0 is ultralight, whilst 99 will be an extremely black.

This enum contains the predefined font weights:

Enumerator:

Black	87
Bold	75
DemiBold	63
Light	25
Normal	50

Constructor & Destructor Documentation

QtGui.QFont.QFont ( System.Type  dummy )

protected

QtGui.QFont.QFont

(

)

Constructs a font object that uses the application's default font.

See also QApplication::setFont() and QApplication::font().

QtGui.QFont.QFont

(

QFont

arg1

)

Constructs a font that is a copy of font.

QtGui.QFont.QFont	(	QFont	arg1,
		IQPaintDevice	pd
	)

Constructs a font from font for use on the paint device pd.

QtGui.QFont.QFont	(	string	family,
		int	pointSize = -1,
		int	weight = -1,
		bool	italic = false
	)

Constructs a font object that uses the application's default font.

See also QApplication::setFont() and QApplication::font().

Member Function Documentation

static void QtGui.QFont.CacheStatistics ( )

static

static void QtGui.QFont.Cleanup ( )

static

virtual void QtGui.QFont.CreateProxy ( )

virtual

new string QtGui.QFont.DefaultFamily

(

)

Returns the family name that corresponds to the current style hint.

See also StyleHint, styleHint(), and setStyleHint().

new void QtGui.QFont.Dispose

(

)

override bool QtGui.QFont.Equals

(

object

o

)

new bool QtGui.QFont.ExactMatch

(

)

Returns true if a window system font exactly matching the settings of this font is available.

See also QFontInfo.

new bool QtGui.QFont.FromString

(

string

arg1

)

Sets this font to match the description descrip. The description is a comma-separated list of the font attributes, as returned by toString().

See also toString().

override int QtGui.QFont.GetHashCode

(

)

new System.IntPtr QtGui.QFont.Handle

(

)

Returns the window system handle to the font, for low-level access. Using this function is not portable.

static void QtGui.QFont.Initialize ( )

static

static void QtGui.QFont.InsertSubstitution ( string  arg1, string  arg2  )

static

Inserts substituteName into the substitution table for the family familyName.

See also insertSubstitutions(), removeSubstitution(), substitutions(), substitute(), and substitutes().

static void QtGui.QFont.InsertSubstitutions ( string  arg1, System.Collections.Generic.List< string >  arg2  )

static

Inserts the list of families substituteNames into the substitution list for familyName.

See also insertSubstitution(), removeSubstitution(), substitutions(), and substitute().

new bool QtGui.QFont.IsCopyOf

(

QFont

arg1

)

Returns true if this font and f are copies of each other, i.e. one of them was created as a copy of the other and neither has been modified since. This is much stricter than equality.

See also operator=() and operator==().

new string QtGui.QFont.Key

(

)

Returns the font's key, a textual representation of a font. It is typically used as the key for a cache or dictionary of fonts.

See also QMap.

new string QtGui.QFont.LastResortFamily

(

)

Returns the "last resort" font family name.

The current implementation tries a wide variety of common fonts, returning the first one it finds. Is is possible that no family is found in which case an empty string is returned.

See also lastResortFont().

new string QtGui.QFont.LastResortFont

(

)

Returns a "last resort" font name for the font matching algorithm. This is used if the last resort family is not available. It will always return a name, if necessary returning something like "fixed" or "system".

The current implementation tries a wide variety of common fonts, returning the first one it finds. The implementation may change at any time, but this function will always return a string containing something.

It is theoretically possible that there really isn't a lastResortFont() in which case Qt will abort with an error message. We have not been able to identify a case where this happens. Please report it as a bug if it does, preferably with a list of the fonts you have installed.

See also lastResortFamily() and rawName().

new double QtGui.QFont.LetterSpacing

(

)

Returns the letter spacing for the font.

This function was introduced in Qt 4.4.

See also setLetterSpacing(), letterSpacingType(), and setWordSpacing().

new QFont.SpacingType QtGui.QFont.LetterSpacingType

(

)

Returns the spacing type used for letter spacing.

This function was introduced in Qt 4.4.

See also letterSpacing(), setLetterSpacing(), and setWordSpacing().

static bool QtGui.QFont.operator!= ( QFont  arg1, QFont  arg2  )

static

Returns true if this font is different from f; otherwise returns false.

Two QFonts are considered to be different if their font attributes are different. If rawMode() is enabled for both fonts, only the family fields are compared.

See also operator==().

static bool QtGui.QFont.operator< ( QFont  arg1, QFont  arg2  )

static

Provides an arbitrary comparison of this font and font f. All that is guaranteed is that the operator returns false if both fonts are equal and that (f1 < f2) == !(f2 < f1) if the fonts are not equal.

This function is useful in some circumstances, for example if you want to use QFont objects as keys in a QMap.

See also operator==(), operator!=(), and isCopyOf().

static bool QtGui.QFont.operator== ( QFont  arg1, QFont  arg2  )

static

Returns true if this font is equal to f; otherwise returns false.

Two QFonts are considered equal if their font attributes are equal. If rawMode() is enabled for both fonts, only the family fields are compared.

See also operator!=() and isCopyOf().

static bool QtGui.QFont.operator> ( QFont  arg1, QFont  arg2  )

static

static void QtGui.QFont.RemoveSubstitution ( string  arg1 )

static

Removes all the substitutions for familyName.

See also insertSubstitutions(), insertSubstitution(), substitutions(), and substitute().

new uint QtGui.QFont.Resolve

(

)

Returns a new QFont that has attributes copied from other that have not been previously set on this font.

new QFont QtGui.QFont.Resolve

(

QFont

arg1

)

Returns a new QFont that has attributes copied from other that have not been previously set on this font.

new void QtGui.QFont.Resolve

(

uint

mask

)

Returns a new QFont that has attributes copied from other that have not been previously set on this font.

new void QtGui.QFont.SetLetterSpacing	(	QFont.SpacingType	type,
		double	spacing
	)

Sets the letter spacing for the font to spacing and the type of spacing to type.

Letter spacing changes the default spacing between individual letters in the font. The spacing between the letters can be made smaller as well as larger.

This function was introduced in Qt 4.4.

See also letterSpacing(), letterSpacingType(), and setWordSpacing().

new void QtGui.QFont.SetStyleHint	(	QFont.StyleHint	arg1,
		QFont.StyleStrategy	arg2 = QFont.StyleStrategy.PreferDefault
	)

Sets the style hint and strategy to hint and strategy, respectively.

If these aren't set explicitly the style hint will default to AnyStyle and the style strategy to PreferDefault.

Qt does not support style hints on X11 since this information is not provided by the window system.

See also StyleHint, styleHint(), StyleStrategy, styleStrategy(), and QFontInfo.

static string QtGui.QFont.Substitute ( string  arg1 )

static

Returns the first family name to be used whenever familyName is specified. The lookup is case insensitive.

If there is no substitution for familyName, familyName is returned.

To obtain a list of substitutions use substitutes().

See also setFamily(), insertSubstitutions(), insertSubstitution(), and removeSubstitution().

static System.Collections.Generic.List<string> QtGui.QFont.Substitutes ( string  arg1 )

static

Returns a list of family names to be used whenever familyName is specified. The lookup is case insensitive.

If there is no substitution for familyName, an empty list is returned.

See also substitute(), insertSubstitutions(), insertSubstitution(), and removeSubstitution().

static System.Collections.Generic.List<string> QtGui.QFont.Substitutions ( )

static

Returns a sorted list of substituted family names.

See also insertSubstitution(), removeSubstitution(), and substitute().

override string QtGui.QFont.ToString

(

)

Returns a description of the font. The description is a comma-separated list of the attributes, perfectly suited for use in QSettings.

See also fromString().

Member Data Documentation

SmokeInvocation QtGui.QFont.interceptor

protected

Property Documentation

new bool QtGui.QFont.Bold

getset

Returns true if weight() is a value greater than QFont::Normal; otherwise returns false.

If enable is true sets the font's weight to QFont::Bold; otherwise sets the weight to QFont::Normal.

For finer boldness control use setWeight().

new QFont.Capitalization QtGui.QFont.capitalization

getset

Returns the current capitalization type of the font.

This function was introduced in Qt 4.4.

Sets the capitalization of the text in this font to caps.

A font's capitalization makes the text appear in the selected capitalization mode.

This function was introduced in Qt 4.4.

new string QtGui.QFont.Family

getset

Returns the requested font family name, i.e. the name set in the constructor or the last setFont() call.

Sets the family name of the font. The name is case insensitive and may include a foundry name.

The family name may optionally also include a foundry name, e.g. "Helvetica [Cronyx]". If the family is available from more than one foundry and the foundry isn't specified, an arbitrary foundry is chosen. If the family isn't available a family will be set using the font matching algorithm.

new bool QtGui.QFont.FixedPitch

getset

Returns true if fixed pitch has been set; otherwise returns false.

If enable is true, sets fixed pitch on; otherwise sets fixed pitch off.

new QFont.HintingPreference QtGui.QFont.hintingPreference

getset

Returns the currently preferred hinting level for glyphs rendered with this font.

This function was introduced in Qt 4.8.

Set the preference for the hinting level of the glyphs to hintingPreference. This is a hint to the underlying font rendering system to use a certain level of hinting, and has varying support across platforms. See the table in the documentation for QFont::HintingPreference for more details.

The default hinting preference is QFont::PreferDefaultHinting.

This function was introduced in Qt 4.8.

new bool QtGui.QFont.Italic

getset

Returns true if the style() of the font is not QFont::StyleNormal

Sets the style() of the font to QFont::StyleItalic if enable is true; otherwise the style is set to QFont::StyleNormal.

new bool QtGui.QFont.Kerning

getset

Returns true if kerning should be used when drawing text with this font.

Enables kerning for this font if enable is true; otherwise disables it. By default, kerning is enabled.

When kerning is enabled, glyph metrics do not add up anymore, even for Latin text. In other words, the assumption that width('a') + width('b') is equal to width("ab") is not neccesairly true.

new bool QtGui.QFont.Overline

getset

Returns true if overline has been set; otherwise returns false.

If enable is true, sets overline on; otherwise sets overline off.

new int QtGui.QFont.PixelSize

getset

Returns the pixel size of the font if it was set with setPixelSize(). Returns -1 if the size was set with setPointSize() or setPointSizeF().

Sets the font size to pixelSize pixels.

Using this function makes the font device dependent. Use setPointSize() or setPointSizeF() to set the size of the font in a device independent manner.

new int QtGui.QFont.PointSize

getset

Returns the point size of the font. Returns -1 if the font size was specified in pixels.

Sets the point size to pointSize. The point size must be greater than zero.

new double QtGui.QFont.PointSizeF

getset

Returns the point size of the font. Returns -1 if the font size was specified in pixels.

Sets the point size to pointSize. The point size must be greater than zero. The requested precision may not be achieved on all platforms.

new bool QtGui.QFont.RawMode

getset

Returns true if raw mode is used for font name matching; otherwise returns false.

If enable is true, turns raw mode on; otherwise turns raw mode off. This function only has an effect under X11.

If raw mode is enabled, Qt will search for an X font with a complete font name matching the family name, ignoring all other values set for the QFont. If the font name matches several fonts, Qt will use the first font returned by X. QFontInfo cannot be used to fetch information about a QFont using raw mode (it will return the values set in the QFont for all parameters, including the family name).

Warning: Do not use raw mode unless you really, really need it! In most (if not all) cases, setRawName() is a much better choice.

new string QtGui.QFont.RawName

getset

Returns the name of the font within the underlying window system.

On X11, this function will return an empty string if Qt is built with FontConfig support; otherwise the XLFD (X Logical Font Description) is returned.

Using the return value of this function is usually not portable.

Sets a font by its system specific name. The function is particularly useful under X, where system font settings (for example X resources) are usually available in XLFD (X Logical Font Description) form only. You can pass an XLFD as name to this function.

A font set with setRawName() is still a full-featured QFont. It can be queried (for example with italic()) or modified (for example with setItalic()) and is therefore also suitable for rendering rich text.

If Qt's internal font database cannot resolve the raw name, the font becomes a raw font with name as its family.

Note that the present implementation does not handle wildcards in XLFDs well, and that font aliases (file fonts.alias in the font directory on X11) are not supported.

virtual System.IntPtr QtGui.QFont.SmokeObject

getset

new QMetaObject QtGui.QFont.StaticMetaObject

staticget

new int QtGui.QFont.stretch

getset

Returns the stretch factor for the font.

Sets the stretch factor for the font.

The stretch factor changes the width of all characters in the font by factor percent. For example, setting factor to 150 results in all characters in the font being 1.5 times (ie. 150%) wider. The default stretch factor is 100. The minimum stretch factor is 1, and the maximum stretch factor is 4000.

The stretch factor is only applied to outline fonts. The stretch factor is ignored for bitmap fonts.

NOTE: QFont cannot stretch XLFD fonts. When loading XLFD fonts on X11, the stretch factor is matched against a predefined set of values for the SETWIDTH_NAME field of the XLFD.

new bool QtGui.QFont.StrikeOut

getset

Returns true if strikeout has been set; otherwise returns false.

If enable is true, sets strikeout on; otherwise sets strikeout off.

new QFont.Style QtGui.QFont.style

getset

Returns the style of the font.

Sets the style of the font to style.

new QFont.StyleHint QtGui.QFont.styleHint

get

Returns the StyleHint.

The style hint affects the font matching algorithm. See QFont::StyleHint for the list of available hints.

See also setStyleHint(), QFont::StyleStrategy, and QFontInfo::styleHint().

new string QtGui.QFont.StyleName

getset

Returns the requested font style name, it will be used to match the font with irregular styles (that can't be normalized in other style properties). It depends on system font support, thus only works for Mac OS X and X11 so far. On Windows irregular styles will be added as separate font families so there is no need for this.

This function was introduced in Qt 4.8.

Sets the style name of the font to the given styleName. When set, other style properties like style() and weight() will be ignored for font matching.

This function was introduced in Qt 4.8.

new QFont.StyleStrategy QtGui.QFont.styleStrategy

getset

Returns the StyleStrategy.

The style strategy affects the font matching algorithm. See QFont::StyleStrategy for the list of available strategies.

Sets the style strategy for the font to s.

new bool QtGui.QFont.Underline

getset

Returns true if underline has been set; otherwise returns false.

If enable is true, sets underline on; otherwise sets underline off.

new int QtGui.QFont.weight

getset

Returns the weight of the font which is one of the enumerated values from QFont::Weight.

Sets the weight the font to weight, which should be a value from the QFont::Weight enumeration.

new double QtGui.QFont.WordSpacing

getset

Returns the word spacing for the font.

This function was introduced in Qt 4.4.

Sets the word spacing for the font to spacing.

Word spacing changes the default spacing between individual words. A positive value increases the word spacing by a corresponding amount of pixels, while a negative value decreases the inter-word spacing accordingly.

Word spacing will not apply to writing systems, where indiviaul words are not separated by white space.

This function was introduced in Qt 4.4.