The QStyleOptionTab class is used to describe the parameters for drawing a tab bar. 更多...
| 头： | #include <QStyleOptionTab> |
| 继承： | QStyleOption |
| 继承者： | QStyleOptionTabV2 |
| enum | CornerWidget { NoCornerWidgets, LeftCornerWidget, RightCornerWidget } |
| flags | CornerWidgets |
| enum | SelectedPosition { NotAdjacent, NextIsSelected, PreviousIsSelected } |
| enum | StyleOptionType { Type } |
| enum | StyleOptionVersion { Version } |
| enum | TabPosition { Beginning, Middle, End, OnlyOneTab } |
| QStyleOptionTab () | |
| QStyleOptionTab (const QStyleOptionTab & other ) |
| CornerWidgets | cornerWidgets |
| QIcon | icon |
| TabPosition | position |
| int | row |
| SelectedPosition | selectedPosition |
| QTabBar::Shape | shape |
| QString | text |
The QStyleOptionTab class is used to describe the parameters for drawing a tab bar.
The QStyleOptionTab class is used for drawing several built-in Qt widgets including QTabBar 和面板为 QTabWidget . Note that to describe the parameters necessary for drawing a frame in Qt 4.1 or above, you must use the QStyleOptionFrameV2 子类。
An instance of the QStyleOptiontabV2 class has type SO_Tab and version 1. The type is used internally by 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. The version is used by QStyleOption 子类以实现扩展在不破坏兼容性的情况下。若使用 qstyleoption_cast ()，通常不需要校验它。
If you create your own QStyle subclass, you should handle both QStyleOptionTab and QStyleOptionTabV2 .
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 QStyleOptionTabV2 and QStyleOption .
这些标志指示选项卡的角落小部件。
| 常量 | 值 | 描述 |
|---|---|---|
QStyleOptionTab::NoCornerWidgets
|
0x00
|
没有角落 Widget |
QStyleOptionTab::LeftCornerWidget
|
0x01
|
左上角 Widget |
QStyleOptionTab::RightCornerWidget
|
0x02
|
右上角 Widget |
The CornerWidgets type is a typedef for QFlags <CornerWidget>. It stores an OR combination of CornerWidget values.
另请参阅 cornerWidgets .
This enum describes the position of the selected tab. Some styles need to draw a tab differently depending on whether or not it is adjacent to the selected tab.
| 常量 | 值 | 描述 |
|---|---|---|
QStyleOptionTab::NotAdjacent
|
0
|
The tab is not adjacent to a selected tab (or is the selected tab). |
QStyleOptionTab::NextIsSelected
|
1
|
The next tab (typically the tab on the right) is selected. |
QStyleOptionTab::PreviousIsSelected
|
2
|
The previous tab (typically the tab on the left) is selected. |
另请参阅 selectedPosition .
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 |
|---|---|---|
QStyleOptionTab::Type
|
SO_Tab
|
提供样式选项的类型 ( SO_Tab 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 |
|---|---|---|
QStyleOptionTab::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 ()，通常不需要校验它。
另请参阅 StyleOptionType .
此枚举描述选项卡的位置。
| 常量 | 值 | 描述 |
|---|---|---|
QStyleOptionTab::Beginning
|
0
|
选项卡是选项卡栏中的第一选项卡。 |
QStyleOptionTab::Middle
|
1
|
选项卡既不是选项卡栏中的第一选项卡，也不是最后选项卡。 |
QStyleOptionTab::End
|
2
|
The tab is the last tab in the tab bar. |
QStyleOptionTab::OnlyOneTab
|
3
|
The tab is both the first and the last tab in the tab bar. |
另请参阅 position .
构造 QStyleOptionTab object, initializing the members variables to their default values.
构造副本为 other 样式选项。
This variable holds an OR combination of CornerWidget values indicating the corner widgets of the tab bar.
默认值为 NoCornerWidgets .
另请参阅 CornerWidget .
This variable holds the icon for the tab.
默认值为空图标 (即：图标既没有像素图，也没有文件名)。
This variable holds the position of the tab in the tab bar.
默认值为 Beginning , i.e. the tab is the first tab in the tab bar.
This variable holds which row the tab is currently in.
The default value is 0, indicating the front row. Currently this property can only be 0.
This variable holds the position of the selected tab in relation to this tab.
默认值为 NotAdjacent , i.e. the tab is not adjacent to a selected tab nor is it the selected tab.
This variable holds the tab shape used to draw the tab; by default QTabBar::RoundedNorth.
另请参阅 QTabBar::Shape .
This variable holds the text of the tab.
默认值为空字符串。
