QStyleOptionTitleBar 类

QStyleOptionTitleBar class is used to describe the parameters for drawing a title bar. 更多...

头：	#include <QStyleOptionTitleBar>
qmake:	QT += widgets
继承：	QStyleOptionComplex

所有成员列表，包括继承成员

公共类型

enum	StyleOptionType { Type }
enum	StyleOptionVersion { Version }

公共函数

	QStyleOptionTitleBar ()
	QStyleOptionTitleBar (const QStyleOptionTitleBar & other )

2 公共函数继承自 QStyleOption

公共变量

QIcon	icon
QString	text
Qt::WindowFlags	titleBarFlags
int	titleBarState

2 public variables inherited from QStyleOptionComplex
8 public variables inherited from QStyleOption

详细描述

QStyleOptionTitleBar class is used to describe the parameters for drawing a title bar.

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 .

成员类型文档编制

enum QStyleOptionTitleBar:: StyleOptionType

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 .

enum QStyleOptionTitleBar:: 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 (), you normally do not need to check it.

另请参阅 StyleOptionType .

成员函数文档编制

QStyleOptionTitleBar:: QStyleOptionTitleBar ()

构造 QStyleOptionTitleBar , initializing the members variables to their default values.

QStyleOptionTitleBar:: QStyleOptionTitleBar (const QStyleOptionTitleBar & other )

构造副本为 other 样式选项。

成员变量文档编制

QIcon QStyleOptionTitleBar:: icon

This variable holds the icon for the title bar

The default value is an empty icon, i.e. an icon with neither a pixmap nor a filename.

QString QStyleOptionTitleBar:: text

This variable holds the text of the title bar

默认值为空字符串。

Qt::WindowFlags QStyleOptionTitleBar:: titleBarFlags

This variable holds the widget flags for the title bar

默认值为 Qt::Widget .

另请参阅 Qt::WindowFlags .

int QStyleOptionTitleBar:: titleBarState

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 ().