PyQt5 - QStacked 小部件
简述
QStackedWidget类似于 QTabWidget。它还有助于有效使用窗口的客户区。
QStackedWidget 提供了一堆小部件，一次只能查看其中一个。这是一个有用的布局，建立在QStackedLayout.
例子
父 QStackedWidget 对象填充有多个子小部件。
self.Stack = QStackedWidget (self) self.stack1 = QWidget() self.stack2 = QWidget() self.stack3 = QWidget() self.Stack.addWidget (self.stack1) self.Stack.addWidget (self.stack2) self.Stack.addWidget (self.stack3)
每个子小部件都可以有自己的表单元素布局。QStackedWidget 本身不能在页面之间切换。它与当前选择的 QListWidget 索引链接。
self.leftlist = QListWidget () self.leftlist.insertItem (0, 'Contact' ) self.leftlist.insertItem (1, 'Personal' ) self.leftlist.insertItem (2, 'Educational' ) self.leftlist.currentRowChanged.connect(self.display)
在这里，QListWidget 的 currentRowChanged() 信号连接到 display() 函数，它改变了堆叠窗口小部件的视图。
def display(self,i): self.Stack.setCurrentIndex(i)
完整的代码如下 -
import sys from PyQt5.QtCore import * from PyQt5.QtGui import * from PyQt5.QtWidgets import * class stackedExample(QWidget): def __init__(self): super(stackedExample, self).__init__() self.leftlist = QListWidget () self.leftlist.insertItem (0, 'Contact' ) self.leftlist.insertItem (1, 'Personal' ) self.leftlist.insertItem (2, 'Educational' ) self.stack1 = QWidget() self.stack2 = QWidget() self.stack3 = QWidget() self.stack1UI() self.stack2UI() self.stack3UI() self.Stack = QStackedWidget (self) self.Stack.addWidget (self.stack1) self.Stack.addWidget (self.stack2) self.Stack.addWidget (self.stack3) hbox = QHBoxLayout(self) hbox.addWidget(self.leftlist) hbox.addWidget(self.Stack) self.setLayout(hbox) self.leftlist.currentRowChanged.connect(self.display) self.setGeometry(300, 50, 10,10) self.setWindowTitle('StackedWidget demo') self.show() def stack1UI(self): layout = QFormLayout() layout.addRow("Name",QLineEdit()) layout.addRow("Address",QLineEdit()) #self.setTabText(0,"Contact Details") self.stack1.setLayout(layout) def stack2UI(self): layout = QFormLayout() sex = QHBoxLayout() sex.addWidget(QRadioButton("Male")) sex.addWidget(QRadioButton("Female")) layout.addRow(QLabel("Sex"),sex) layout.addRow("Date of Birth",QLineEdit()) self.stack2.setLayout(layout) def stack3UI(self): layout = QHBoxLayout() layout.addWidget(QLabel("subjects")) layout.addWidget(QCheckBox("Physics")) layout.addWidget(QCheckBox("Maths")) self.stack3.setLayout(layout) def display(self,i): self.Stack.setCurrentIndex(i) def main(): app = QApplication(sys.argv) ex = stackedExample() sys.exit(app.exec_()) if __name__ == '__main__': main()
上面的代码产生以下输出 -
