QStyleOptionTitleBar 类是用于绘制标题栏的描述参数。 更多...
头: | #include <QStyleOptionTitleBar> |
qmake: | QT += widgets |
继承: | QStyleOptionComplex |
enum | StyleOptionType { Type } |
enum | StyleOptionVersion { Version } |
QStyleOptionTitleBar (const QStyleOptionTitleBar & other ) | |
QStyleOptionTitleBar () |
QIcon | icon |
QString | text |
Qt::WindowFlags | titleBarFlags |
int | titleBarState |
QStyleOptionTitleBar contains all the information that QStyle functions need to draw the title bar of a QMdiSubWindow .
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.
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 QStyleOption , QStyleOptionComplex ,和 QMdiSubWindow .
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 |
---|---|---|
QStyleOptionTitleBar::Type
|
SO_TitleBar
|
提供样式选项的类型 ( SO_TitleBar 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 |
---|---|---|
QStyleOptionTitleBar::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 .
构造副本为 other 样式选项。
Constructs a QStyleOptionTitleBar, initializing the members variables to their default values.
This variable holds the icon for the title bar
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 text of the title bar
默认值为空字符串。
This variable holds the widget flags for the title bar
默认值为 Qt::Widget .
另请参阅 Qt::WindowFlags .
This variable holds the state of the title bar
This is basically the window state of the underlying widget. The default value is 0.
另请参阅 QWidget::windowState ().