The QStyleOptionTabV3 class is used to describe the parameters necessary for drawing a tabs in Qt 4.5 or above. 更多...
| 头: | #include <QStyleOptionTabV3> |
| Since: | Qt 4.5 |
| 继承: | QStyleOptionTabV2 |
| enum | StyleOptionVersion { Version } |
| QStyleOptionTabV3 () | |
| QStyleOptionTabV3 (const QStyleOptionTabV3 & other ) | |
| QStyleOptionTabV3 (const QStyleOptionTabV2 & other ) | |
| QStyleOptionTabV3 (const QStyleOptionTab & other ) | |
| QStyleOptionTabV3 & | operator= (const QStyleOptionTab & other ) |
| bool | documentMode |
| QSize | leftButtonSize |
| QSize | rightButtonSize |
The QStyleOptionTabV3 class is used to describe the parameters necessary for drawing a tabs in Qt 4.5 or above.
An instance of the QStyleOptionTabV3 class has type SO_Tab and version 3. 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 , QStyleOptionTabV2 and QStyleOptionTabV3 . One way to achieve this is to use the QStyleOptionTabV3 copy constructor. For example:
if (const QStyleOptionTab *tabOption =
qstyleoption_cast<const QStyleOptionTab *>(option)) {
QStyleOptionTabV2 tabV2(*tabOption);
// draw the tab using tabV2
}
In the example above: If
tabOption
's version is 1, the extra member (
iconSize
) will be set to an invalid size for
tabV2
。若
tabOption
's version is 2, the constructor will simply copy the
tab
's
iconSize
.
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 QStyleOptionTab and QStyleOption .
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 |
|---|---|---|
QStyleOptionTabV3::Version
|
3
|
3 |
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 .
构造 QStyleOptionTabV3 .
构造副本为 other 样式选项。
构造副本为 other 样式选项。
构造 QStyleOptionTabV3 copy of the other style option which can be either of the QStyleOptionTabV3 , QStyleOptionTabV2 or QStyleOptionTab 类型。
If the other style option's version is 1 or 2, the new style option's
leftButtonSize
and
rightButtonSize
is set to an invalid value. If its version is 3, its
leftButtonSize
and
rightButtonSize
values are simply copied to the new style option.
赋值 other style option to this QStyleOptionTabV3 。 other style option can be either of the QStyleOptionTabV3 , QStyleOptionTabV2 or QStyleOptionTab 类型。
If the other style option's version is 1 or 2, the new style option's
leftButtonSize
and
rightButtonSize
is set to an invalid value. If its version is 3, its
leftButtonSize
and
rightButtonSize
values are simply copied to the new style option.
This variable holds whether the tabbar is in document mode.
默认值为 false;
This variable holds the size for the left widget on the tab.
默认值为 QSize (-1, -1), i.e. an invalid size;
This variable holds the size for the right widget on the tab.
默认值为 QSize (-1, -1), i.e. an invalid size;