The QStyleOptionGroupBox class describes the parameters for drawing a group box. 更多...
继承 QStyleOptionComplex .
The QStyleOptionGroupBox class describes the parameters for drawing a group box.
QStyleOptionButton contains all the information that QStyle functions need the various graphical elements of a group box.
It holds the lineWidth 和 midLineWidth for drawing the panel, the group box's title and the title's alignment and color .
For performance reasons, the access to the member variables is direct (i.e., using the . or -> operator). This low-level feel makes the structures straightforward to use and emphasizes that these are simply parameters used by the style 函数。
For an example demonstrating how style options can be used, see the 样式 范例。
This enum is used to hold information about the type of the style option, and is defined for each QStyleOption 子类。
| 常量 | 值 | 描述 |
|---|---|---|
| QStyleOptionGroupBox.Type | SO_GroupBox | The type of style option provided ( SO_GroupBox for this class). |
The type is used internally by QStyleOption , its subclasses, and qstyleoption_cast () 到 determine the type of style option. In general you do not need to worry about this unless you want to create your own QStyleOption subclass and your own styles.
另请参阅 StyleOptionVersion .
This enum is used to hold information about the version of the style option, and is defined for each QStyleOption 子类。
| 常量 | 值 | 描述 |
|---|---|---|
| QStyleOptionGroupBox.Version | 1 | 1 |
The version is used by QStyleOption subclasses to implement extensions without breaking compatibility. If you use qstyleoption_cast (), you normally do not need to check it.
另请参阅 StyleOptionType .
构造 QStyleOptionGroupBox , initializing the members variables to their default values.
构造副本为 other 样式选项。
This variable holds the features of the group box frame.
The frame is flat by default.
另请参阅 QStyleOptionFrameV2.FrameFeature .
This variable holds the line width for drawing the panel.
The value of this variable is, currently, always 1.
另请参阅 QFrame.lineWidth .
This variable holds the mid-line width for drawing the panel.
The mid-line width is usually used when drawing sunken or raised group box frames. The value of this variable is, currently, always 0.
另请参阅 QFrame.midLineWidth .
This variable holds the text of the group box.
默认值为空字符串。
另请参阅 QGroupBox.title .
This variable holds the alignment of the group box title.
默认值为 Qt.AlignLeft .
另请参阅 QGroupBox.alignment .
This variable holds the color of the group box title.
The default value is an invalid color with the RGB value (0, 0, 0). An invalid color is a color that is not properly set up for the underlying window system.
