QStyleOptionTabBarBase Class
The QStyleOptionTabBarBase class is used to describe the base of a tab bar, i.e. the part that the tab bar usually overlaps with. 更多...
| 头文件: | #include <QStyleOptionTabBarBase> |
| qmake: | QT += widgets |
| 基类: | QStyleOption |
公有类型
| enum | StyleOptionType { Type } |
| enum | StyleOptionVersion { Version } |
公有函数
| QStyleOptionTabBarBase() | |
| QStyleOptionTabBarBase(const QStyleOptionTabBarBase &other) |
- 2 个公有函数继承自 QStyleOption
公有变量
| bool | documentMode |
| QRect | selectedTabRect |
| QTabBar::Shape | shape |
| QRect | tabBarRect |
- 8 个公有变量继承自 QStyleOption
详细描述
The QStyleOptionTabBarBase class is used to describe the base of a tab bar, i.e. the part that the tab bar usually overlaps with.
QStyleOptionTabBarBase contains all the information that QStyle functions need to draw the tab bar base. Note that this is only drawn for a standalone QTabBar (one that isn't part of a QTabWidget).
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.
For an example demonstrating how style options can be used, see the Styles example.
参见 QStyleOption and QTabBar::drawBase().
成员类型
enum QStyleOptionTabBarBase::StyleOptionType
This enum is used to hold information about the type of the style option, and is defined for each QStyleOption subclass.
| Constant | Value | Description |
|---|---|---|
QStyleOptionTabBarBase::Type | SO_TabBarBase | The type of style option provided (SO_TabBarBase for this class). |
The type is used internally by QStyleOption, its subclasses, and 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.
enum QStyleOptionTabBarBase::StyleOptionVersion
This enum is used to hold information about the version of the style option, and is defined for each QStyleOption subclass.
| Constant | Value | Description |
|---|---|---|
QStyleOptionTabBarBase::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.
参见 StyleOptionType.
成员函数
QStyleOptionTabBarBase::QStyleOptionTabBarBase()
Construct a QStyleOptionTabBarBase, initializing the members vaiables to their default values.
QStyleOptionTabBarBase::QStyleOptionTabBarBase(const QStyleOptionTabBarBase &other)
Constructs a copy of other.
成员变量
bool QStyleOptionTabBarBase::documentMode
This variable holds whether the tabbar is in document mode.
The default value is false;
QRect QStyleOptionTabBarBase::selectedTabRect
This variable holds the rectangle containing the selected tab
This rectangle is contained within the tabBarRect. The default value is a null rectangle, i.e. a rectangle with both the width and the height set to 0.
QTabBar::Shape QStyleOptionTabBarBase::shape
This variable holds the shape of the tab bar
The default value is QTabBar::RoundedNorth.
QRect QStyleOptionTabBarBase::tabBarRect
This variable holds the rectangle containing all the tabs
The default value is a null rectangle, i.e. a rectangle with both the width and the height set to 0.