QStackedLayout ¶

QStackedLayout class provides a stack of widgets where only one widget is visible at a time. 更多 …

概要 ¶

函数 ¶

def currentIndex ()
def currentWidget ()
def insertWidget (index, w)
def setStackingMode (stackingMode)
def stackingMode ()
def widget (arg__1)

槽 ¶

def setCurrentIndex (index)
def setCurrentWidget (w)

信号 ¶

def currentChanged (index)
def widgetRemoved (index)

详细描述 ¶

QStackedLayout can be used to create a user interface similar to the one provided by QTabWidget 。还有方便 QStackedWidget class built on top of QStackedLayout .

A QStackedLayout can be populated with a number of child widgets (“pages”). For example:
self.firstPageWidget = QWidget()
self.secondPageWidget = QWidget()
self.thirdPageWidget = QWidget()
self.stackedLayout = QStackedLayout()
self.stackedLayout.addWidget(self.firstPageWidget)
self.stackedLayout.addWidget(self.secondPageWidget)
self.stackedLayout.addWidget(self.thirdPageWidget)
self.mainLayout = QVBoxLayout()
self.mainLayout.addLayout(self.stackedLayout)
self.setLayout(self.mainLayout)
											
QStackedLayout provides no intrinsic means for the user to switch page. This is typically done through a QComboBox 或 QListWidget that stores the titles of the QStackedLayout ‘s pages. For example:
self.pageComboBox = QComboBox()
self.pageComboBox.addItem(tr("Page 1"))
self.pageComboBox.addItem(tr("Page 2"))
self.pageComboBox.addItem(tr("Page 3"))
self.pageComboBox.activated.connect(self.stackedLayout.setCurrentIndex)
											
当填充布局时，Widget 会被添加到内部列表中。 indexOf() function returns the index of a widget in that list. The widgets can either be added to the end of the list using the addWidget() function, or inserted at a given index using the insertWidget() function. The removeWidget() function removes the widget at the given index from the layout. The number of widgets contained in the layout, can be obtained using the count() 函数。

widget() function returns the widget at a given index position. The index of the widget that is shown on screen is given by currentIndex() and can be changed using setCurrentIndex() . In a similar manner, the currently shown widget can be retrieved using the currentWidget() function, and altered using the setCurrentWidget() 函数。

Whenever the current widget in the layout changes or a widget is removed from the layout, the currentChanged() and widgetRemoved() signals are emitted respectively.

另请参阅

QStackedWidget QTabWidget

class QStackedLayout ¶

QStackedLayout(parentLayout)

QStackedLayout(parent)

param parent

QWidget

param parentLayout

QLayout

构造 QStackedLayout with no parent.

This QStackedLayout must be installed on a widget later on to become effective.

另请参阅

addWidget() insertWidget()

构造新 QStackedLayout 并将其插入给定 parentLayout .

构造新 QStackedLayout 采用给定 parent .

This layout will install itself on the parent widget and manage the geometry of its children.

PySide2.QtWidgets.QStackedLayout. StackingMode ¶

This enum specifies how the layout handles its child widgets regarding their visibility.

常量	描述
QStackedLayout.StackOne	Only the current widget is visible. This is the default.
QStackedLayout.StackAll	All widgets are visible. The current widget is merely raised.

PySide2.QtWidgets.QStackedLayout. currentChanged ( index ) ¶

参数: index – int

PySide2.QtWidgets.QStackedLayout. currentIndex ( ) ¶

返回类型: int

另请参阅

setCurrentIndex()

PySide2.QtWidgets.QStackedLayout. currentWidget ( ) ¶

返回类型: QWidget

返回当前 Widget，或 None if there are no widgets in this layout.

另请参阅

currentIndex() setCurrentWidget()

PySide2.QtWidgets.QStackedLayout. insertWidget ( index , w ) ¶

参数

index – int
w – QWidget

返回类型

int

Inserts the given widget at the given index in this QStackedLayout 。若 index is out of range, the widget is appended (in which case it is the actual index of the widget that is returned).