QStyleOptionFocusRect class is used to describe the parameters for drawing a focus rectangle with QStyle . 更多...
| 头： | #include <QStyleOptionFocusRect> |
| qmake: | QT += widgets |
| 继承： | QStyleOption |
| enum | StyleOptionType { Type } |
| enum | StyleOptionVersion { Version } |
| QStyleOptionFocusRect () | |
| QStyleOptionFocusRect (const QStyleOptionFocusRect & other ) |
| QColor | backgroundColor |
QStyleOptionFocusRect class is used to describe the parameters for drawing a focus rectangle with QStyle .
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 functions.
对于可以如何使用样式选项的演示范例，见 样式 范例。
另请参阅 QStyleOption .
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 |
|---|---|---|
QStyleOptionFocusRect::Type
|
SO_FocusRect
|
提供样式选项的类型 ( SO_FocusRect 对于此类)。 |
类型内部使用通过 QStyleOption ，其子类，和 qstyleoption_cast () to 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 |
|---|---|---|
QStyleOptionFocusRect::Version
|
1
|
1 |
版本的使用通过 QStyleOption 子类以实现扩展在不破坏兼容性的情况下。若使用 qstyleoption_cast (), you normally do not need to check it.
另请参阅 StyleOptionType .
构造 QStyleOptionFocusRect , initializing the members variables to their default values.
构造副本为 other 样式选项。
This variable holds the background color on which the focus rectangle is being drawn
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.
