QRadioButton Class Reference
^{^{[

QtGui

module]}}

The QRadioButton widget provides a radio button with a text label. 更多...

方法

__init__ ( self , QWidget parent = None)
__init__ ( self , QString text , QWidget parent = None)
bool event ( self , QEvent e )
bool hitButton ( self , QPoint)
initStyleOption ( self , QStyleOptionButton button )
QSize minimumSizeHint ( self )
mouseMoveEvent ( self , QMouseEvent)
paintEvent ( self , QPaintEvent)
QSize sizeHint ( self )

详细描述

The QRadioButton widget provides a radio button with a text label.

A QRadioButton is an option button that can be switched on (checked) or off (unchecked). Radio buttons typically present the user with a "one of many" choice. In a group of radio buttons only one radio button at a time can be checked; if the user selects another button, the previously selected button is switched off.

Radio buttons are autoExclusive by default. If auto-exclusive is enabled, radio buttons that belong to the same parent widget behave as if they were part of the same exclusive button group. If you need multiple exclusive button groups for radio buttons that belong to the same parent widget, put them into a QButtonGroup .

Whenever a button is switched on or off it emits the toggled () signal. Connect to this signal if you want to trigger an action each time the button changes state. Use isChecked () to see if a particular button is selected.

就像 QPushButton , a radio button displays text, and optionally a small icon. The icon is set with setIcon ()。 text can be set in the constructor or with setText (). A shortcut key can be specified by preceding the preferred character with an ampersand in the text. For example:

 QRadioButton *button = new QRadioButton("Search from the &cursor", this);

在此范例中快捷方式是 Alt+c 。见 QShortcut documentation for details (to display an actual ampersand, use '&&').

Important inherited members: text (), setText (), text (), setDown (), isDown (), autoRepeat (), group (), setAutoRepeat (), toggle (), pressed (), released (), clicked ()，和 toggled ().

	A radio button shown in the Plastique widget style .
	A radio button shown in the Windows XP widget style .
	A radio button shown in the Macintosh widget style .

方法文档编制

QRadioButton.init ( self , QWidget parent = None)

parent argument, if not None, causes self to be owned by Qt instead of PyQt.

Constructs a radio button with the given parent , but with no text or pixmap.

parent argument is passed on to the QAbstractButton 构造函数。

QRadioButton.init ( self , QString text , QWidget parent = None)

parent argument, if not None, causes self to be owned by Qt instead of PyQt.

Constructs a radio button with the given parent 和 text string.

parent argument is passed on to the QAbstractButton 构造函数。

bool QRadioButton.event ( self , QEvent e )

重实现自 QObject.event ().

bool QRadioButton.hitButton ( self , QPoint )

重实现自 QAbstractButton.hitButton ().

QRadioButton.initStyleOption ( self , QStyleOptionButton button )

初始化 option 采用值来自此 QRadioButton . This method is useful for subclasses when they need a QStyleOptionButton , but don't want to fill in all the information themselves.

另请参阅 QStyleOption.initFrom ().

QSize QRadioButton.minimumSizeHint ( self )

重实现自 QWidget.minimumSizeHint ().

该函数在 Qt 4.8 引入。

QRadioButton.mouseMoveEvent ( self , QMouseEvent )

重实现自 QWidget.mouseMoveEvent ().

QRadioButton.paintEvent ( self , QPaintEvent )

重实现自 QWidget.paintEvent ().

QSize QRadioButton.sizeHint ( self )

重实现自 QWidget.sizeHint ().

QRadioButton Class Reference [ QtGui module]

方法