PySide.QtGui.QFont class specifies a font used for drawing text.
When you create a PySide.QtGui.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 PySide.QtGui.QFontInfo object. If the window system provides an exact match PySide.QtGui.QFont.exactMatch() returns true. Use PySide.QtGui.QFontMetrics to get measurements, e.g. the pixel length of a string using QFontMetrics.width() .
注意： PySide.QtGui.QApplication instance must exist before a PySide.QtGui.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, PySide.QtGui.QFont will try to find the characters in the nearest equivalent fonts. When a PySide.QtGui.QPainter draws a character from a font the PySide.QtGui.QFont will report whether or not it has the character; if it does not, PySide.QtGui.QPainter will draw an unfilled square.
Create QFonts like this:
serifFont = QFont("Times", 10, QFont.Bold)
sansFont = QFont("Helvetica [Cronyx]", 12)
The attributes set in the constructor can also be set later, e.g. PySide.QtGui.QFont.setFamily() , PySide.QtGui.QFont.setPointSize() , setPointSizeFloat() , PySide.QtGui.QFont.setWeight() and PySide.QtGui.QFont.setItalic() . The remaining attributes must be set after contstruction, e.g. PySide.QtGui.QFont.setBold() , PySide.QtGui.QFont.setUnderline() , PySide.QtGui.QFont.setOverline() , PySide.QtGui.QFont.setStrikeOut() and PySide.QtGui.QFont.setFixedPitch() . PySide.QtGui.QFontInfo objects should be created after the font's attributes have been set. A PySide.QtGui.QFontInfo object will not change, even if you change the font's attributes. The corresponding “get” functions, e.g. PySide.QtGui.QFont.family() , PySide.QtGui.QFont.pointSize() , etc., return the values that were set, even though the values used may differ. The actual values are available from a PySide.QtGui.QFontInfo 对象。
If the requested font family is unavailable you can influence the font matching algorithm by choosing a particular QFont.StyleHint and QFont.StyleStrategy with PySide.QtGui.QFont.setStyleHint() . The default family (corresponding to the current style hint) is returned by PySide.QtGui.QFont.defaultFamily() .
The font-matching algorithm has a PySide.QtGui.QFont.lastResortFamily() and PySide.QtGui.QFont.lastResortFont() in cases where a suitable match cannot be found. You can provide substitutions for font family names using PySide.QtGui.QFont.insertSubstitution() and PySide.QtGui.QFont.insertSubstitutions() . Substitutions can be removed with PySide.QtGui.QFont.removeSubstitution() 。使用 PySide.QtGui.QFont.substitute() to retrieve a family's first substitute, or the family name itself if it has no substitutes. Use PySide.QtGui.QFont.substitutes() to retrieve a list of a family's substitutes (which may be empty).
Every PySide.QtGui.QFont has a PySide.QtGui.QFont.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 PySide.QtCore.QSettings , writing the font information with PySide.QtGui.QFont.toString() and reading it back with PySide.QtGui.QFont.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 PySide.QtGui.QFont.setPixelSize() ; however using PySide.QtGui.QFont.setPointSize() has a similar effect and provides device independence.
In X11 you can set a font using its system specific name with PySide.QtGui.QFont.setRawName() .
Loading fonts can be expensive, especially on X11. PySide.QtGui.QFont contains extensive optimizations to make the copying of PySide.QtGui.QFont objects fast, and to cache the results of the slow window system functions it depends upon.
The font matching algorithm works as follows:
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 PySide.QtGui.QFont.setStyleStrategy() ).
Once a font is found, the remaining attributes are matched in order of priority:
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 PySide.QtGui.QFontInfo object can be used to determine the actual values used for drawing the text.
范例：
f = QFont("Helvetica")
If you had both an Adobe and a Cronyx Helvetica, you might get either.
f = QFont("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 PySide.QtGui.QFontInfo object, e.g.
info = QFontInfo(f1)
family = info.family()
To find out font metrics use a PySide.QtGui.QFontMetrics object, e.g.
fm = QFontMetrics(f1)
textWidthInPixels = fm.width("How many pixels wide is this text?")
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.
| 参数： |
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Constructs a font object that uses the application's default font.
Constructs a font that is a copy of font .
Constructs a font from font for use on the paint device pd .
Constructs a font object with the specified family , pointSize , weight and italic settings.
若 pointSize is zero or negative, the point size of the font is set to a system-dependent default value. Generally, this is 12 points, except on Symbian where it is 7 points.
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.
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.
| 常量 | 描述 |
|---|---|
| QFont.PreferDefaultHinting | Use the default hinting level for the target platform. |
| QFont.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. |
| QFont.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. |
| QFont.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. |
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.
| PreferDefaultHinting | PreferNoHinting | PreferVerticalHinting | PreferFullHinting | |
| 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 |
注意
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.
注意
This enum was introduced or modified in Qt 4.8
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:
| 常量 | 描述 |
|---|---|
| QFont.PreferDefault | the default style strategy. It does not prefer any type of font. |
| QFont.PreferBitmap | prefers bitmap fonts (as opposed to outline fonts). |
| QFont.PreferDevice | prefers device fonts. |
| QFont.PreferOutline | prefers outline fonts (as opposed to bitmap fonts). |
| QFont.ForceOutline | forces the use of outline fonts. |
| QFont.NoAntialias | don't antialias the fonts. |
| QFont.PreferAntialias | antialias if possible. |
| QFont.OpenGLCompatible | forces the use of OpenGL compatible fonts. |
| QFont.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. |
Any of these may be OR-ed with one of these flags:
| 常量 | 描述 |
|---|---|
| QFont.PreferMatch | prefer an exact match. The font matcher will try to use the exact font size that has been specified. |
| QFont.PreferQuality | prefer the best quality font. The font matcher will use the nearest standard point size that the font supports. |
| QFont.ForceIntegerMetrics | forces the use of integer values in font engines that support fractional font metrics. |
| 常量 | 描述 |
|---|---|
| QFont.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. |
| QFont.AbsoluteSpacing | A positive value increases the letter spacing by the corresponding pixels; a negative value decreases the spacing. |
Style hints are used by the font matching algorithm to find an appropriate default family if a selected font family is not available.
| 常量 | 描述 |
|---|---|
| QFont.AnyStyle | leaves the font matching algorithm to choose the family. This is the default. |
| QFont.SansSerif | the font matcher prefer sans serif fonts. |
| QFont.Helvetica | is a synonym for SansSerif . |
| QFont.Serif | the font matcher prefers serif fonts. |
| QFont.Times | is a synonym for Serif . |
| QFont.TypeWriter | the font matcher prefers fixed pitch fonts. |
| QFont.Courier | a synonym for TypeWriter . |
| QFont.OldEnglish | the font matcher prefers decorative fonts. |
| QFont.Decorative | is a synonym for OldEnglish . |
| QFont.Monospace | the font matcher prefers fonts that map to the CSS generic font-family ‘monospace'. |
| QFont.Fantasy | the font matcher prefers fonts that map to the CSS generic font-family ‘fantasy'. |
| QFont.Cursive | the font matcher prefers fonts that map to the CSS generic font-family ‘cursive'. |
| QFont.System | the font matcher prefers system fonts. |
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:
| 常量 | 描述 |
|---|---|
| QFont.Light | 25 |
| QFont.Normal | 50 |
| QFont.DemiBold | 63 |
| QFont.Bold | 75 |
| QFont.Black | 87 |
Rendering option for text this font applies to.
| 常量 | 描述 |
|---|---|
| QFont.MixedCase | This is the normal text rendering option where no capitalization change is applied. |
| QFont.AllUppercase | This alters the text to be rendered in all uppercase type. |
| QFont.AllLowercase | This alters the text to be rendered in all lowercase type. |
| QFont.SmallCaps | This alters the text to be rendered in small-caps type. |
| QFont.Capitalize | This alters the text to be rendered with the first character of each word as an uppercase character. |
Predefined stretch values that follow the CSS naming convention. The higher the value, the more stretched the text is.
| 常量 | 描述 |
|---|---|
| QFont.UltraCondensed | 50 |
| QFont.ExtraCondensed | 62 |
| QFont.Condensed | 75 |
| QFont.SemiCondensed | 87 |
| QFont.Unstretched | 100 |
| QFont.SemiExpanded | 112 |
| QFont.Expanded | 125 |
| QFont.ExtraExpanded | 150 |
| QFont.UltraExpanded | 200 |
This enum describes the different styles of glyphs that are used to display text.
| 常量 | 描述 |
|---|---|
| QFont.StyleNormal | Normal glyphs used in unstyled text. |
| QFont.StyleItalic | Italic glyphs that are specifically designed for the purpose of representing italicized text. |
| QFont.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. |
另请参阅
QFont.Weight
| 返回类型： | PySide.QtCore.bool |
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返回 true 若 PySide.QtGui.QFont.weight() is a value greater than QFont.Normal ；否则返回 false。
| 返回类型： | PySide.QtGui.QFont.Capitalization |
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Returns the current capitalization type of the font.
Internal function that cleans up the font system.
| 返回类型： | unicode |
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Returns the family name that corresponds to the current style hint.
另请参阅
QFont.StyleHint PySide.QtGui.QFont.styleHint() PySide.QtGui.QFont.setStyleHint()
| 返回类型： | PySide.QtCore.bool |
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Returns true if a window system font exactly matching the settings of this font is available.
| 返回类型： | unicode |
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Returns the requested font family name, i.e. the name set in the constructor or the last setFont() 调用。
| 返回类型： | PySide.QtCore.bool |
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Returns true if fixed pitch has been set; otherwise returns false.
| 参数： | arg__1 – unicode |
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| 返回类型： | PySide.QtCore.bool |
Sets this font to match the description descrip . The description is a comma-separated list of the font attributes, as returned by PySide.QtGui.QFont.toString() .
| 返回类型： | PySide.QtCore.Qt::HANDLE |
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Returns the window system handle to the font, for low-level access. Using this function is not portable.
| 返回类型： | PySide.QtGui.QFont.HintingPreference |
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Returns the currently preferred hinting level for glyphs rendered with this font.
Internal function that initializes the font system. The font cache and font dict do not alloc the keys. The key is a PySide.QtCore.QString which is shared between QFontPrivate and QXFontName.
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插入 substituteName into the substitution table for the family familyName .
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Inserts the list of families substituteNames into the substitution list for familyName .
| 参数： | arg__1 – PySide.QtGui.QFont |
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| 返回类型： | PySide.QtCore.bool |
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.
另请参阅
PySide.QtGui.QFont.operator=() PySide.QtGui.QFont.operator==()
| 返回类型： | PySide.QtCore.bool |
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返回 true 若 PySide.QtGui.QFont.style() of the font is not QFont.StyleNormal
| 返回类型： | PySide.QtCore.bool |
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Returns true if kerning should be used when drawing text with this font.
| 返回类型： | unicode |
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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.
另请参阅
QMap
| 返回类型： | unicode |
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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.
| 返回类型： | unicode |
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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 PySide.QtGui.QFont.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.
| 返回类型： | PySide.QtCore.qreal |
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Returns the letter spacing for the font.
| 返回类型： | PySide.QtGui.QFont.SpacingType |
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Returns the spacing type used for letter spacing.
| 返回类型： | PySide.QtCore.quint32 |
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返回 ATSUFontID
| 参数： | arg__1 – PySide.QtGui.QPaintDevice |
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| 参数： | arg__1 – PySide.QtGui.QFont |
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| 返回类型： | PySide.QtCore.bool |
Returns true if this font is different from f ；否则返回 false。
Two QFonts are considered to be different if their font attributes are different. If PySide.QtGui.QFont.rawMode() is enabled for both fonts, only the family fields are compared.
另请参阅
PySide.QtGui.QFont.operator==()
| 参数： | arg__1 – PySide.QtGui.QFont |
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| 返回类型： | PySide.QtCore.bool |
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 PySide.QtGui.QFont objects as keys in a QMap .
另请参阅
PySide.QtGui.QFont.operator==() PySide.QtGui.QFont.operator!=() PySide.QtGui.QFont.isCopyOf()
| 参数： | arg__1 – PySide.QtGui.QFont |
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| 返回类型： | PySide.QtCore.bool |
Returns true if this font is equal to f ；否则返回 false。
Two QFonts are considered equal if their font attributes are equal. If PySide.QtGui.QFont.rawMode() is enabled for both fonts, only the family fields are compared.
另请参阅
PySide.QtGui.QFont.operator!=() PySide.QtGui.QFont.isCopyOf()
| 返回类型： | PySide.QtCore.bool |
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Returns true if overline has been set; otherwise returns false.
| 返回类型： | PySide.QtCore.int |
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Returns the pixel size of the font if it was set with PySide.QtGui.QFont.setPixelSize() . Returns -1 if the size was set with PySide.QtGui.QFont.setPointSize() or PySide.QtGui.QFont.setPointSizeF() .
| 返回类型： | PySide.QtCore.int |
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Returns the point size of the font. Returns -1 if the font size was specified in pixels.
| 返回类型： | PySide.QtCore.qreal |
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Returns the point size of the font. Returns -1 if the font size was specified in pixels.
| 返回类型： | PySide.QtCore.bool |
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Returns true if raw mode is used for font name matching; otherwise returns false.
| 返回类型： | unicode |
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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 .
| 参数： | arg__1 – unicode |
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Removes all the substitutions for familyName .
| 参数： | arg__1 – PySide.QtGui.QFont |
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| 返回类型： | PySide.QtGui.QFont |
返回新 PySide.QtGui.QFont that has attributes copied from other that have not been previously set on this font.
| 参数： | mask – PySide.QtCore.uint |
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| 返回类型： | PySide.QtCore.uint |
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| 参数： | arg__1 – PySide.QtCore.bool |
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若 enable is true sets the font's weight to QFont.Bold ; otherwise sets the weight to QFont.Normal .
For finer boldness control use PySide.QtGui.QFont.setWeight() .
| 参数： | arg__1 – PySide.QtGui.QFont.Capitalization |
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Sets the capitalization of the text in this font to caps .
A font's capitalization makes the text appear in the selected capitalization mode.
| 参数： | arg__1 – unicode |
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Sets the family name of the font. The name is case insensitive and may include a foundry name.
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.
| 参数： | arg__1 – PySide.QtCore.bool |
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若 enable is true, sets fixed pitch on; otherwise sets fixed pitch off.
| 参数： | hintingPreference – PySide.QtGui.QFont.HintingPreference |
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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 了解更多细节。
The default hinting preference is QFont.PreferDefaultHinting .
| 参数： | b – PySide.QtCore.bool |
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设置 PySide.QtGui.QFont.style() of the font to QFont.StyleItalic if enable is true; otherwise the style is set to QFont.StyleNormal .
| 参数： | arg__1 – PySide.QtCore.bool |
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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.
| 参数： |
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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.
| 参数： | arg__1 – PySide.QtCore.bool |
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若 enable is true, sets overline on; otherwise sets overline off.
| 参数： | arg__1 – PySide.QtCore.int |
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Sets the font size to pixelSize 像素。
Using this function makes the font device dependent. Use PySide.QtGui.QFont.setPointSize() or PySide.QtGui.QFont.setPointSizeF() to set the size of the font in a device independent manner.
| 参数： | arg__1 – PySide.QtCore.int |
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Sets the point size to pointSize . The point size must be greater than zero.
| 参数： | arg__1 – PySide.QtCore.qreal |
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Sets the point size to pointSize . The point size must be greater than zero. The requested precision may not be achieved on all platforms.
| 参数： | arg__1 – PySide.QtCore.bool |
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若 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 PySide.QtGui.QFont . If the font name matches several fonts, Qt will use the first font returned by X. PySide.QtGui.QFontInfo cannot be used to fetch information about a PySide.QtGui.QFont using raw mode (it will return the values set in the PySide.QtGui.QFont for all parameters, including the family name).
警告
Do not use raw mode unless you really, really need it! In most (if not all) cases, PySide.QtGui.QFont.setRawName() is a much better choice.
| 参数： | arg__1 – unicode |
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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 PySide.QtGui.QFont.setRawName() is still a full-featured PySide.QtGui.QFont . It can be queried (for example with PySide.QtGui.QFont.italic() ) or modified (for example with PySide.QtGui.QFont.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.
| 参数： | arg__1 – PySide.QtCore.int |
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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: PySide.QtGui.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.
另请参阅
PySide.QtGui.QFont.stretch() QFont.Stretch
| 参数： | arg__1 – PySide.QtCore.bool |
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若 enable is true, sets strikeout on; otherwise sets strikeout off.
| 参数： | style – PySide.QtGui.QFont.Style |
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Sets the style of the font to style .
| 参数： |
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Sets the style hint and strategy to hint and strategy ，分别。
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.
另请参阅
QFont.StyleHint PySide.QtGui.QFont.styleHint() QFont.StyleStrategy PySide.QtGui.QFont.styleStrategy() PySide.QtGui.QFontInfo
| 参数： | arg__1 – unicode |
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Sets the style name of the font to the given styleName . When set, other style properties like PySide.QtGui.QFont.style() and PySide.QtGui.QFont.weight() will be ignored for font matching.
| 参数： | s – PySide.QtGui.QFont.StyleStrategy |
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Sets the style strategy for the font to s .
另请参阅
PySide.QtGui.QFont.styleStrategy() QFont.StyleStrategy
| 参数： | arg__1 – PySide.QtCore.bool |
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若 enable is true, sets underline on; otherwise sets underline off.
| 参数： | arg__1 – PySide.QtCore.int |
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Sets the weight the font to weight , which should be a value from the QFont.Weight enumeration.
| 参数： | spacing – PySide.QtCore.qreal |
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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.
| 返回类型： | PySide.QtCore.int |
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Returns the stretch factor for the font.
| 返回类型： | PySide.QtCore.bool |
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Returns true if strikeout has been set; otherwise returns false.
| 返回类型： | PySide.QtGui.QFont.Style |
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Returns the style of the font.
| 返回类型： | PySide.QtGui.QFont.StyleHint |
|---|
返回 QFont.StyleHint .
The style hint affects the font matching algorithm. See QFont.StyleHint for the list of available hints.
另请参阅
PySide.QtGui.QFont.setStyleHint() QFont.StyleStrategy QFontInfo.styleHint()
| 返回类型： | unicode |
|---|
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.
| 返回类型： | PySide.QtGui.QFont.StyleStrategy |
|---|
返回 QFont.StyleStrategy .
The style strategy affects the font matching algorithm. See QFont.StyleStrategy for the list of available strategies.
另请参阅
PySide.QtGui.QFont.setStyleStrategy() PySide.QtGui.QFont.setStyleHint() QFont.StyleHint
| 参数： | arg__1 – unicode |
|---|---|
| 返回类型： | unicode |
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 被返回。
To obtain a list of substitutions use PySide.QtGui.QFont.substitutes() .
| 参数： | arg__1 – unicode |
|---|---|
| 返回类型： | 字符串列表 |
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.
| 返回类型： | 字符串列表 |
|---|
Returns a sorted list of substituted family names.
| 返回类型： | unicode |
|---|
Returns a description of the font. The description is a comma-separated list of the attributes, perfectly suited for use in PySide.QtCore.QSettings .
| 返回类型： | PySide.QtCore.bool |
|---|
Returns true if underline has been set; otherwise returns false.
| 返回类型： | PySide.QtCore.int |
|---|
Returns the weight of the font which is one of the enumerated values from QFont.Weight .
另请参阅
PySide.QtGui.QFont.setWeight() QFont.Weight PySide.QtGui.QFontInfo
| 返回类型： | PySide.QtCore.qreal |
|---|
Returns the word spacing for the font.