The QStyleOptionViewItemV2 class is used to describe the parameters necessary for drawing a frame in Qt 4.2 or above. 更多...
继承 QStyleOptionViewItem .
Inherited by QStyleOptionViewItemV3 .
The QStyleOptionViewItemV2 class is used to describe the parameters necessary for drawing a frame in Qt 4.2 or above.
QStyleOptionViewItemV2 inherits QStyleOptionViewItem .
An instance of the QStyleOptionViewItemV2 class has type SO_ViewItem and version 2. 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. The version is used by QStyleOption subclasses to implement extensions without breaking compatibility. 若使用 qstyleoption_cast (), you normally do not need to check it.
见 QStyleOptionFrameV2 's detailed description for a discussion of how to handle "V2" 类。
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 |
|---|---|---|
| QStyleOptionViewItemV2.Version | 2 | 2 |
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 .
This enum describes the different types of features an item can have.
| 常量 | 值 | 描述 |
|---|---|---|
| QStyleOptionViewItemV2.None | 0x00 | Indicates a normal item. |
| QStyleOptionViewItemV2.WrapText | 0x01 | Indicates an item with wrapped text. |
| QStyleOptionViewItemV2.Alternate | 0x02 | Indicates that the item's background is rendered using alternateBase. |
| QStyleOptionViewItemV2.HasCheckIndicator | 0x04 | Indicates that the item has a check state indicator. |
| QStyleOptionViewItemV2.HasDisplay | 0x08 | Indicates that the item has a display role. |
| QStyleOptionViewItemV2.HasDecoration | 0x10 | Indicates that the item has a decoration role. |
The ViewItemFeatures type is a typedef for QFlags <ViewItemFeature>. It stores an OR combination of ViewItemFeature values.
构造 QStyleOptionViewItemV2 对象。
构造副本为 other .
构造 QStyleOptionViewItemV2 copy of the other style option which can be either of the QStyleOptionViewItemV2 or QStyleOptionViewItem 类型。
若 other style option's version is 1, the new style option's ViewItemFeature value is set to QStyleOptionViewItemV2.None . If its version is 2, its ViewItemFeature value is simply copied to the new style option.
另请参阅 version .
This variable holds a bitwise OR of the features that describe this view item.
另请参阅 ViewItemFeature .
