The QStyleOptionTabV3 class is used to describe the parameters necessary for drawing a tabs in Qt 4.5 or above. 更多...
| 頭: | #include <QStyleOptionTabV3> |
| Since: | Qt 4.5 |
| 繼承: | 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 ,其子類,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 子類以實現擴展在不破壞兼容性的情況下。若使用 qstyleoption_cast (),通常不需要校驗它。
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
.
對於可以如何使用樣式選項的演示範例,見 樣式 範例。
另請參閱 QStyleOptionTab and QStyleOption .
This enum is used to hold information about the version of the style option, and is defined for each QStyleOption 子類。
| 常量 | 值 | 描述 |
|---|---|---|
QStyleOptionTabV3::Version
|
3
|
3 |
版本的使用通過 QStyleOption 子類以實現擴展在不破壞兼容性的情況下。若使用 qstyleoption_cast (),通常不需要校驗它。
另請參閱 StyleOptionType .
構造 QStyleOptionTabV3 .
構造副本為 other 樣式選項。
構造副本為 other 樣式選項。
構造 QStyleOptionTabV3 copy of the other style option which can be either of the QStyleOptionTabV3 , QStyleOptionTabV2 or QStyleOptionTab 類型。
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.
賦值 other style option to this QStyleOptionTabV3 。 other style option can be either of the QStyleOptionTabV3 , QStyleOptionTabV2 or QStyleOptionTab 類型。
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.
默認值為 false;
This variable holds the size for the left widget on the tab.
默認值為 QSize (-1, -1), i.e. an invalid size;
This variable holds the size for the right widget on the tab.
默認值為 QSize (-1, -1), i.e. an invalid size;