table of Contents
2. Stacked widget QStackedWidget
Three. Dock control QDockWidget
Four. The window that accommodates multiple documents
The purpose of using container controls : to make more controls on the screen
1. Tab control QTabWidget
What is a tab control?
Example:
Different tab controls correspond to different interfaces, so that too many things can not fit on a page, that is, one tab corresponds to one window.
Code:
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
class TabWidget(QTabWidget): #直接一整个屏幕就是一个选项卡窗口
def __init__(self,parent=None):
super(TabWidget, self).__init__(parent)
self.setWindowTitle('选项卡控件:QTabWidget')
self.resize(400,200)
#创建用于显示控件的窗口
self.tab1=QWidget()
self.tab2 = QWidget()
self.tab3 = QWidget()
#将窗口和选项卡绑定
self.addTab(self.tab1,'选项卡1')
self.addTab(self.tab2, '选项卡2')
self.addTab(self.tab3, '选项卡3')
self.tab1UI()
self.tab2UI()
self.tab3UI()
def tab1UI(self):
#表单布局
layout=QFormLayout()
layout.addRow('姓名',QLineEdit())
layout.addRow('地址',QLineEdit())
# 将第一个选项卡窗口重命名
self.setTabText(0,'联系方式')
self.tab1.setLayout(layout)#别忘了tab1就是一个窗口
def tab2UI(self):
layout=QFormLayout()
sex=QHBoxLayout()#水平布局，横向排列
#单选框
sex.addWidget(QRadioButton('男'))
sex.addWidget(QRadioButton('女'))
layout.addRow(QLabel('性别'),sex)
layout.addRow('生日',QLineEdit())
self.setTabText(1,'个人详细信息')
self.tab2.setLayout(layout)
def tab3UI(self):
layout=QHBoxLayout()
layout.addWidget(QLabel('科目'))
#复选框
layout.addWidget(QCheckBox('物理'))
layout.addWidget(QCheckBox('高数'))
self.setTabText(2,'教育程度')
self.tab3.setLayout(layout)
if __name__=='__main__':
app=QApplication(sys.argv)
main=TabWidget()
main.show()
sys.exit(app.exec_())
operation result:
2. Stacked widget QStackedWidget
Switch pages by index
Code:
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
class StackedExample(QWidget): #直接一整个屏幕就是一个选项卡窗口
def __init__(self,parent=None):
super(StackedExample, self).__init__(parent)
self.setWindowTitle('堆栈窗口控件:QStackedWidget')
#self.resize(400,200)
self.setGeometry(800,450,10,10)
#列表控件
self.list=QListWidget()
self.list.insertItem(0,'联系方式')
self.list.insertItem(1,'个人信息')
self.list.insertItem(2,'教育程度')
self.stack1=QWidget()
self.stack2 = QWidget()
self.stack3 = QWidget()
self.tab1UI()
self.tab2UI()
self.tab3UI()
#堆栈窗口控件对象
self.stack=QStackedWidget()
self.stack.addWidget(self.stack1)
self.stack.addWidget(self.stack2)
self.stack.addWidget(self.stack3)
self.list.currentRowChanged.connect(self.display)
hbox=QHBoxLayout()
hbox.addWidget(self.list)
hbox.addWidget(self.stack)
self.setLayout(hbox)
def tab1UI(self):
#表单布局
layout=QFormLayout()
layout.addRow('姓名',QLineEdit())
layout.addRow('地址',QLineEdit())
self.stack1.setLayout(layout)#别忘了tab1就是一个窗口
def tab2UI(self):
layout=QFormLayout()
sex=QHBoxLayout()#水平布局，横向排列
#单选框
sex.addWidget(QRadioButton('男'))
sex.addWidget(QRadioButton('女'))
layout.addRow(QLabel('性别'),sex)
layout.addRow('生日',QLineEdit())
self.stack2.setLayout(layout)
def tab3UI(self):
layout=QHBoxLayout()
layout.addWidget(QLabel('科目'))
#复选框
layout.addWidget(QCheckBox('物理'))
layout.addWidget(QCheckBox('高数'))
self.stack3.setLayout(layout)
def display(self,index):
#通过索引来切换页面
self.stack.setCurrentIndex(index)
if __name__=='__main__':
app=QApplication(sys.argv)
main=StackedExample()
main.show()
sys.exit(app.exec_())
operation result:
Three. Dock control QDockWidget
Code:
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
class DockDemo(QMainWindow): #直接一整个屏幕就是一个选项卡窗口
def __init__(self,parent=None):
super(DockDemo, self).__init__(parent)
self.setWindowTitle('停靠控件:QDockWidget')
self.setGeometry(800,450,500,500)#x,y,w,h
#self.resize(400, 200)
layout=QHBoxLayout()
#停靠控件对象
self.items=QDockWidget('Dockable',self)
#列表控件
self.listWidget=QListWidget()
self.listWidget.addItem('item1')
self.listWidget.addItem('item2')
self.listWidget.addItem('item3')
#将列表放到停靠控件上
self.items.setWidget(self.listWidget)
self.setCentralWidget(QLineEdit('单行输入'))
#设置一开始就是悬浮状态
self.items.setFloating(True)
#在窗口上设置停靠控件，且悬浮在右侧
self.addDockWidget(Qt.RightDockWidgetArea,self.items)
if __name__=='__main__':
app=QApplication(sys.argv)
main=DockDemo()
main.show()
sys.exit(app.exec_())
operation result:
Just like some left and right windows in the compiler, you can drag, zoom out, change positions, etc. at will. Try it yourself!
Four. The window that accommodates multiple documents
A container that is equivalent to a window. There can be many child windows in it, but the child windows can only move in it.
Needed class:
To accommodate multiple documents: QMdiArea
sub-window: QMdiSubWindow
Code:
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
class MultiWindows(QMainWindow): #直接一整个屏幕就是一个选项卡窗口
count=0 #记录当前有多少个菜单项
def __init__(self,parent=None):
super(MultiWindows, self).__init__(parent)
self.setWindowTitle('容纳多文档的窗口')
self.setGeometry(800,450,500,400)#x,y,w,h
#容纳多文档容器对象
self.mdi=QMdiArea()
bar=self.menuBar()
file=bar.addMenu('File')
file.addAction('New')
file.addAction('cascade') #重叠
file.addAction('Tiled') #平铺
file.triggered.connect(self.windowAction)
self.setCentralWidget(self.mdi)
def windowAction(self,q): #q是当前的单击菜单项,通过按钮名来进行不同的操作
if q.text()=='New':
self.count=self.count+1
#子窗口对象
sub=QMdiSubWindow()
sub.setWidget(QTextEdit())
sub.setWindowTitle('子窗口'+str(self.count))
self.mdi.addSubWindow(sub)
sub.show()
#下面两个是对mdi中已有的窗口排布进行操作，而不是生成窗口
elif q.text()=='cascade':
self.mdi.cascadeSubWindows()
elif q.text()=='Tiled':
self.mdi.tileSubWindows()
if __name__=='__main__':
app=QApplication(sys.argv)
main=MultiWindows()
main.show()
sys.exit(app.exec_())
operation result:
First randomly generate (New) four windows, and then try the other two layout effects.
Overlapping 
tiles