1、树控件的基本使用方法QTreeWidget‘‘‘QTreeWidget树控件的使用方法添加图标，添加表格，添加复选框等‘‘‘from PyQt5.QtWidgets import *from PyQt5.QtCore import Qtfrom PyQt5.QtGui import QIcon,QBrush,QColorimport sys
class treewidget(QMainWindow): def __init__(self): super(treewidget,self).__init__()
self.setWindowTitle("树控件的基本用法") self.resize(800,300)
#设置树控件 self.tree=QTreeWidget() self.tree.setColumnCount(2) #制定树控件为两列 self.tree.setHeaderLabels(["key","value"]) #设置列标签
#添加根节点1 root=QTreeWidgetItem(self.tree) root.setText(0,"根节点") root.setIcon(0,QIcon("./image/1.png")) self.tree.setColumnWidth(0,300)
#添加子节点1 n1=QTreeWidgetItem(root) n1.setText(0,"子节点1") n1.setText(1,"子节点的数据") n1.setIcon(0,QIcon("./image/1.png")) n1.setCheckState(0,Qt.Checked) #添加复选框 #添加子节点2 n2=QTreeWidgetItem(root) n2.setText(0, "子节点2") n2.setText(1, "子节点2的数据") n2.setIcon(0, QIcon("./image/1.png")) n2.setCheckState(0, Qt.Checked) # 添加复选框
#为子节点再添加子节点2-1 n3 = QTreeWidgetItem(n2) n3.setText(0, "子节点2-1") n3.setText(1, "子节点2-1的数据") n3.setIcon(0, QIcon("./image/1.png")) n3.setCheckState(0, Qt.Checked) # 添加复选框
self.tree.expandAll() #设置所有的节点为展开的状态 self.setCentralWidget(self.tree)
if __name__=="__main__": app=QApplication(sys.argv) p=treewidget() p.show() sys.exit(app.exec_())
2、树控件添加响应事件‘‘‘树控件响应事件‘‘‘from PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import QIcon,QBrush,QColorimport sys
class treeevent(QMainWindow): def __init__(self): super(treeevent,self).__init__()
self.setWindowTitle("树控件的基本用法") self.resize(800,300)
#创建树控件，设置列数为2 self.tree=QTreeWidget() self.tree.setColumnCount(2) self.tree.setHeaderLabels(["key","value"])
root=QTreeWidgetItem(self.tree) root.setText(0,"root") root.setText(1,"1")
c1=QTreeWidgetItem(root) c1.setText(0,"child1") c1.setText(1,"2")
c2=QTreeWidgetItem(c1) c2.setText(0,"child2") c2.setText(1,"3") c3 = QTreeWidgetItem(c1) c3.setText(0, "child3") c3.setText(1, "4")
#为树节点设置信号与槽函数 self.tree.clicked.connect(self.ontreeclick) self.setCentralWidget(self.tree)
def ontreeclick(self,index): i=self.tree.currentItem() print(index.row()) print(‘key=%s,value=%s‘ %(i.text(0),i.text(1)))
if __name__=="__main__": app=QApplication(sys.argv) p=treeevent() p.show() sys.exit(app.exec_())
3、树控件增加、修改与删减节点‘‘‘树控件修改操作‘‘‘from PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import QIcon,QBrush,QColorimport sys
class treechange(QWidget): def __init__(self): super(treechange,self).__init__()
self.setWindowTitle("树控件的节点删减操作") self.resize(800,300)
layout=QHBoxLayout() add=QPushButton("添加节点") update=QPushButton("修改节点") delete=QPushButton("删除节点")
layout.addWidget(add) layout.addWidget(update) layout.addWidget(delete)
add.clicked.connect(self.add1) update.clicked.connect(self.update1) delete.clicked.connect(self.delete1)
# 创建树控件，设置列数为2 self.tree = QTreeWidget() self.tree.setColumnCount(2) self.tree.setHeaderLabels(["key", "value"])
root = QTreeWidgetItem(self.tree) root.setText(0, "root") root.setText(1, "1")
c1 = QTreeWidgetItem(root) c1.setText(0, "child1") c1.setText(1, "2")
c2 = QTreeWidgetItem(c1) c2.setText(0, "child2") c2.setText(1, "3") c3 = QTreeWidgetItem(c1) c3.setText(0, "child3") c3.setText(1, "4") # 为树节点设置信号与槽函数 self.tree.clicked.connect(self.ontreeclick)
layout1=QVBoxLayout(self) layout1.addLayout(layout) layout1.addWidget(self.tree) self.setLayout(layout1)
#显示的系统的根目录 model = QDirModel() # 当前的系统model tree = QTreeView() tree.setModel(model) tree.setWindowTitle("QTreeView控件与系统控件") tree.resize(800, 1000) layout1.addWidget(tree)
def ontreeclick(self, index): i = self.tree.currentItem() print(index.row()) print(‘key=%s,value=%s‘ % (i.text(0), i.text(1)))
#添加树节点 def add1(self): print("添加节点") i=self.tree.currentItem() #获取当前节点 print(i) node=QTreeWidgetItem(i) #为当前节点增加节点 node.setText(0,"新节点") node.setText(1,"信值")
#修改节点 def update1(self): print("修改节点") node= self.tree.currentItem() # 获取当前节点 node.setText(0, "修改节点") node.setText(1, "节点值已修改")
#删除节点 def delete1(self): print("删除节点") node = self.tree.currentItem() # 获取当前节点 root=self.tree.invisibleRootItem() #根是不可见的，所以需要另外出来进行删除 if node in self.tree.selectedItems(): (node.parent() or root).removeChild(node)
if __name__=="__main__": app=QApplication(sys.argv) p=treechange() p.show() sys.exit(app.exec_())
4、树控件QTreeview控件‘‘‘QTreeview控件与系统定制模式MODELQDirModel‘‘‘from PyQt5.QtWidgets import *from PyQt5.QtGui import *import sys
if __name__=="__main__": app=QApplication(sys.argv)
#显示当前的系统根目录的列表 model=QDirModel() #当前的系统model tree=QTreeView() tree.setModel(model) tree.setWindowTitle("QTreeView控件与系统控件") tree.resize(800,1000) tree.show() sys.exit(app.exec_())
5、选项卡控件QTabWidget控件
5、选项卡控件QTabWidget控件‘‘‘QTabWidget‘‘‘from PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *import sys
class tabwidgetDemo(QTabWidget): def __init__(self): super(tabwidgetDemo,self).__init__()
self.setWindowTitle("选项卡控件QTabWidget") self.resize(800,300)
#创建用于显示控件的窗口 self.tab1=QWidget() self.tab2=QWidget() self.tab3=QWidget()
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() #初始化第一个选项卡显示页面 self.tab2UI() self.tab3UI()
#第一个选项卡的页面设置 def tab1UI(self): layout=QFormLayout() layout.addRow("姓名", QLineEdit()) layout.addRow("地址",QLineEdit()) self.setTabText(0,"联系方式") #设置第一个选项卡的标题为联系方式 self.tab1.setLayout(layout)
def tab2UI(self): layout1=QFormLayout() sex=QHBoxLayout() sex.addWidget(QRadioButton("男")) sex.addWidget(QRadioButton("女")) layout1.addRow(QLabel("性别"),sex) layout1.addRow("生日",QLineEdit()) self.setTabText(1,"个人详细信息") self.tab2.setLayout(layout1)
def tab3UI(self): layout2=QHBoxLayout() layout2.addWidget(QLabel("科目")) layout2.addWidget(QCheckBox("物理")) layout2.addWidget(QCheckBox("高数")) self.setTabText(2,"教育程度") self.tab3.setLayout(layout2)
if __name__=="__main__": app=QApplication(sys.argv) p=tabwidgetDemo() p.show() sys.exit(app.exec_())
6、堆栈窗口控件（选项卡控件2）QStackWidget堆栈窗口
‘‘‘QStackWidget堆栈窗口‘‘‘from PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *import sys
class stackwidgetDemo(QTabWidget): def __init__(self): super(stackwidgetDemo,self).__init__()
self.setWindowTitle("堆栈控件QStackWidget") self.resize(1000,800)
self.list=QListWidget() self.list.insertItem(0,"联系信息") self.list.insertItem(1,"个人信息") self.list.insertItem(2,"教育程度")
self.list.currentRowChanged.connect(self.display) self.stack1=QWidget() self.stack2=QWidget() self.stack3=QWidget()
self.stack=QStackedWidget() self.stack.addWidget(self.stack1) self.stack.addWidget(self.stack2) self.stack.addWidget(self.stack3)
hb=QHBoxLayout() hb.addWidget(self.list) hb.addWidget(self.stack) self.setLayout(hb)
def display(self,index): self.stack.setCurrentIndex(index)
self.tab1UI() #初始化第一个选项卡显示页面 self.tab2UI() self.tab3UI()
#第一个选项卡的页面设置 def tab1UI(self): layout=QFormLayout() layout.addRow("姓名", QLineEdit()) layout.addRow("地址",QLineEdit()) self.stack1.setLayout(layout)
def tab2UI(self): layout1=QFormLayout() sex=QHBoxLayout() sex.addWidget(QRadioButton("男")) sex.addWidget(QRadioButton("女")) layout1.addRow(QLabel("性别"),sex) layout1.addRow("生日",QLineEdit()) self.stack2.setLayout(layout1)
def tab3UI(self): layout2=QHBoxLayout() layout2.addWidget(QLabel("科目")) layout2.addWidget(QCheckBox("物理")) layout2.addWidget(QCheckBox("高数")) self.stack3.setLayout(layout2)
if __name__=="__main__": app=QApplication(sys.argv) p=stackwidgetDemo() p.show() sys.exit(app.exec_())
7、停靠控件QDockWidget堆栈窗口
‘‘‘QDockWidget堆栈窗口‘‘‘from PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *import sys
class dockwidgetDemo(QMainWindow): def __init__(self): super(dockwidgetDemo, self).__init__()
self.setWindowTitle("停靠控件QDockWidget") self.resize(1000, 800)
layout=QHBoxLayout() self.dock=QDockWidget("Dockable",self) self.listwidget=QListWidget() self.listwidget.addItem("item1") self.listwidget.addItem("item2") self.listwidget.addItem("item3")
self.dock.setWidget(self.listwidget) self.setCentralWidget(QTextEdit("编辑器"))
#设置默认停靠在右边 self.addDockWidget(Qt.RightDockWidgetArea,self.dock) self.dock.setFloating(True) #使其处于悬浮状态 self.setLayout(layout)
if __name__ == "__main__": app = QApplication(sys.argv) p = dockwidgetDemo() p.show() sys.exit(app.exec_())
8、容纳多文档窗口控件‘‘‘在主窗口中可以创建多个文档窗口,窗口容器A：QMdiArea 容纳多窗口类B:QMdiSubWindow 多窗口类B放入A中‘‘‘from PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *import sys
class multiwindow(QMainWindow): count=0 def __init__(self,parent=None): super(multiwindow, self).__init__(parent) self.setWindowTitle("容纳多文档窗口")
self.mdi=QMdiArea() #创建一个多文档容纳器
bar=self.menuBar() #创建一个菜单 file=bar.addMenu("File") file.addAction("new") file.addAction("cascade") file.addAction("tiled")
file.triggered.connect(self.windowaction) self.setCentralWidget(self.mdi)
def windowaction(self,q): if q.text()=="new": #记录子窗口的数目 multiwindow.count=multiwindow.count+1 #x新建一个多文档窗口 sub=QMdiSubWindow() sub.setWidget(QTextEdit()) sub.setWindowTitle("子窗口"+str(multiwindow.count)) #将多文档窗口放置在多文档容器中去 self.mdi.addSubWindow(sub) sub.show() #重叠的排列方式 elif q.text()=="cascade": self.mdi.cascadeSubWindows() #拼接的排列方式 elif q.text()=="tiled": self.mdi.tileSubWindows()
if __name__ == "__main__": app = QApplication(sys.argv) p = multiwindow() p.show() sys.exit(app.exec_())
9、滚动条控件QScrollBar控件‘‘‘QScrollBar控件1.通过滚动条的值的变化来控制其他控件状态的变化2.通过滚动条值的变化控制控件位置的变化‘‘‘from PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *import sys
class scrollbar(QWidget): count=0 def __init__(self): super(scrollbar, self).__init__() self.initUI() def initUI(self): h=QHBoxLayout() self.label=QLabel("拖动滚动条去改变文字颜色") h.addWidget(self.label)
self.scrol1=QScrollBar() self.scrol1.setMaximum(255) self.scrol1.sliderMoved.connect(self.slidemoved)
self.scrol2 = QScrollBar() self.scrol2.setMaximum(255) self.scrol2.sliderMoved.connect(self.slidemoved)
self.scrol3 = QScrollBar() self.scrol3.setMaximum(255) self.scrol3.sliderMoved.connect(self.slidemoved)
self.scrol4 = QScrollBar() self.scrol4.setMaximum(255) self.scrol4.sliderMoved.connect(self.slidemoved1)
h.addWidget(self.scrol1) h.addWidget(self.scrol2) h.addWidget(self.scrol3) h.addWidget(self.scrol4)
self.y=self.label.pos().y()
self.setGeometry(300,300,300,200) self.setLayout(h) self.setWindowTitle("滚动条控件")
#设置一些控件的状态 def slidemoved(self): print(self.scrol1.value(),self.scrol2.value(),self.scrol3.value()) p=QPalette() c=QColor(self.scrol1.value(),self.scrol2.value(),self.scrol3.value(),255) p.setColor(QPalette.Foreground,c) self.label.setPalette(p)
#设置一些控件的位置 def slidemoved1(self): self.label.move(self.label.x(),self.y+self.scrol4.value())
if __name__ == "__main__": app = QApplication(sys.argv) p = scrollbar() p.show() sys.exit(app.exec_())
原文地址：https://www.cnblogs.com/Yanjy-OnlyOne/p/12302955.html
时间： 2024-11-02 00:44:36