【PyQt5-Qt Designer】对话框系列
标准输入对话框(QInputDialog)系列：
主要模块
from PyQt5.QtWidgets import QInputDialog
效果如下：
完整代码：
from PyQt5.QtWidgets import (QApplication, QWidget, QPushButton, QLabel, QInputDialog, QTextBrowser,QGridLayout)
import sys
from PyQt5.QtGui import QIcon class Example(QWidget): def __init__(self):
super().__init__()
self.initUI() def initUI(self):
self.setGeometry(500,500,500,500)
self.setWindowTitle("标准输入对话框")
self.setWindowIcon(QIcon("11.ico"))
gridLayout = QGridLayout()
self.lb11 = QLabel("姓名：")
self.lb12 = QLabel("xiong")
self.btn1 = QPushButton("修改姓名")
gridLayout.addWidget(self.lb11,0,0,1,1)
gridLayout.addWidget(self.lb12,0,1,1,1)
gridLayout.addWidget(self.btn1,0,2,1,1)
self.lb21 = QLabel("年龄：")
self.lb22 = QLabel("")
self.btn2 = QPushButton("修改年龄")
gridLayout.addWidget(self.lb21, 1, 0, 1, 1)
gridLayout.addWidget(self.lb22, 1, 1, 1, 1)
gridLayout.addWidget(self.btn2, 1, 2, 1, 1)
self.lb31 = QLabel("性别：")
self.lb32 = QLabel("男")
self.btn3 = QPushButton("修改性别")
gridLayout.addWidget(self.lb31, 2, 0, 1, 1)
gridLayout.addWidget(self.lb32, 2, 1, 1, 1)
gridLayout.addWidget(self.btn3, 2, 2, 1, 1)
self.lb41 = QLabel("身高（cm）：")
self.lb42 = QLabel("177.0")
self.btn4 = QPushButton("修改身高")
gridLayout.addWidget(self.lb41, 3, 0, 1, 1)
gridLayout.addWidget(self.lb42, 3, 1, 1, 1)
gridLayout.addWidget(self.btn4, 3, 2, 1, 1)
self.lb51 = QLabel("基本信息：")
self.textBrowser = QTextBrowser()
self.btn5 = QPushButton("修改信息")
gridLayout.addWidget(self.lb51, 4, 0, 1, 1)
gridLayout.addWidget(self.textBrowser, 5, 0, 1, 3)
gridLayout.addWidget(self.btn5, 4, 2, 1, 1) self.setLayout(gridLayout) self.btn1.clicked.connect(self.showDialog)
self.btn2.clicked.connect(self.showDialog)
self.btn3.clicked.connect(self.showDialog)
self.btn4.clicked.connect(self.showDialog)
self.btn5.clicked.connect(self.showDialog) def showDialog(self):
sender = self.sender()
if sender == self.btn1:
text , ok = QInputDialog.getText(self,"修改姓名！","请输入姓名：")
if ok:
self.lb12.setText(text)
elif sender == self.btn2:
text, ok = QInputDialog.getInt(self, "修改年龄！", "请输入年龄：",min=1)
if ok:
self.lb22.setText(str(text))
elif sender == self.btn3:
text, ok = QInputDialog.getItem(self, "修改性别！", "请输入性别：",["男","女","人妖"])
if ok:
self.lb32.setText(text)
elif sender == self.btn4:
text, ok = QInputDialog.getDouble(self, "修改身高！", "请输入身高：",min=10.0)
if ok:
self.lb42.setText(str(text))
elif sender == self.btn5:
text, ok = QInputDialog.getMultiLineText(self, "修改信息！", "请输入基本信息：")
if ok:
self.textBrowser.setText(text) if __name__ == '__main__':
app = QApplication(sys.argv)
ex = Example()
ex.show()
sys.exit(app.exec_())
打开文件(QFileDialog)、颜色(QColorDialog)、字体(QFontDialog)对话框
效果如下：
参考：
https://zhuanlan.zhihu.com/p/29321561
完整代码：
from PyQt5.QtWidgets import (QApplication, QWidget, QPushButton, QColorDialog,QFontDialog,QFileDialog,QGridLayout,QTextEdit)
import sys
from PyQt5.QtGui import QIcon class Example(QWidget): def __init__(self):
super().__init__()
self.initUI() def initUI(self):
self.setGeometry(500,500,400,300)
self.setWindowTitle("标准输入对话框")
self.setWindowIcon(QIcon("11.ico"))
gridLayout = QGridLayout()
self.txtFile = QTextEdit()
self.fileContent = []
gridLayout.addWidget(self.txtFile,0,0,3,1)
self.btn1 = QPushButton("打开文件")
self.btn2 = QPushButton("选择字体")
self.btn3 = QPushButton("选择颜色")
gridLayout.addWidget(self.btn1, 0, 1, 1, 1)
gridLayout.addWidget(self.btn2, 1, 1, 1, 1)
gridLayout.addWidget(self.btn3, 2, 1, 1, 1)
self.setLayout(gridLayout) self.btn1.clicked.connect(self.openFile)
self.btn2.clicked.connect(self.choseFont)
self.btn3.clicked.connect(self.choseColor) def openFile(self):
fname = QFileDialog.getOpenFileName(self,"打开文件",'./')
if fname[0]:
with open(fname[0],'r+',encoding='utf8',errors="ignore") as f:
self.fileContent.append(f.read())
txtCon = "".join(self.fileContent)
self.txtFile.setText("\n"+txtCon) def choseFont(self):
font , ok = QFontDialog.getFont()
if ok:
self.txtFile.setCurrentFont(font)
def choseColor(self):
color = QColorDialog.getColor()
if color.isValid():
self.txtFile.setTextColor(color) if __name__ == '__main__':
app = QApplication(sys.argv)
ex = Example()
ex.show()
sys.exit(app.exec_())
文件打印（QPageSetupDialog、QPrintDialog）
效果如下：
参考：
https://zhuanlan.zhihu.com/p/29556459
完整代码：
from PyQt5.QtWidgets import (QApplication, QWidget, QPushButton, QColorDialog,QFontDialog,QFileDialog,QGridLayout,QTextEdit,QDialog)
import sys
from PyQt5.QtGui import QIcon
from PyQt5.QtPrintSupport import QPageSetupDialog,QPrintDialog,QPrinter,QPrintPreviewDialog class Example(QWidget): def __init__(self):
super().__init__()
self.initUI()
self.printer = QPrinter() def initUI(self):
self.setGeometry(500,500,400,300)
self.setWindowTitle("文件打印对话框")
self.setWindowIcon(QIcon("11.ico"))
gridLayout = QGridLayout()
self.txtFile = QTextEdit()
self.fileContent = []
gridLayout.addWidget(self.txtFile,0,0,7,1)
self.btn1 = QPushButton("打开文件")
self.btn2 = QPushButton("打开多个文件")
self.btn3 = QPushButton("选择字体")
self.btn4 = QPushButton("选择颜色")
self.btn5 = QPushButton("保存文件")
self.btn6 = QPushButton("页面设置")
self.btn7 = QPushButton("打印文件")
gridLayout.addWidget(self.btn1, 0, 1, 1, 1)
gridLayout.addWidget(self.btn2, 1, 1, 1, 1)
gridLayout.addWidget(self.btn3, 2, 1, 1, 1)
gridLayout.addWidget(self.btn4, 3, 1, 1, 1)
gridLayout.addWidget(self.btn5, 4, 1, 1, 1)
gridLayout.addWidget(self.btn6, 5, 1, 1, 1)
gridLayout.addWidget(self.btn7, 6, 1, 1, 1)
self.setLayout(gridLayout) self.btn1.clicked.connect(self.openFile)
self.btn2.clicked.connect(self.openFiles)
self.btn3.clicked.connect(self.choseFont)
self.btn4.clicked.connect(self.choseColor)
self.btn5.clicked.connect(self.saveFile)
self.btn6.clicked.connect(self.pageSet)
self.btn7.clicked.connect(self.printFile) def openFile(self):
fname = QFileDialog.getOpenFileName(self,"打开文件",'./')
if fname[0]:
with open(fname[0],'r+',encoding='utf8',errors="ignore") as f:
self.fileContent.append(f.read())
txtCon = "".join(self.fileContent)
self.txtFile.setText("\n"+txtCon) def openFiles(self):
fnames = QFileDialog.getOpenFileNames(self,"打开多个文件",'./')
print(fnames)
if fnames[0]:
for fname in fnames[0]:
with open(fname,'r+',encoding='utf8',errors="ignore") as f:
self.fileContent.append(f.read()+"\n")
txtsCon = "".join(self.fileContent)
self.txtFile.setText(txtsCon) def choseFont(self):
font , ok = QFontDialog.getFont()
if ok:
self.txtFile.setCurrentFont(font) def choseColor(self):
color = QColorDialog.getColor()
if color.isValid():
self.txtFile.setTextColor(color) def saveFile(self):
fileName = QFileDialog.getSaveFileName(self,"保存文件","./","Text files (*.txt)")
if fileName[0]:
with open(fileName[0],'w+',encoding='utf8') as f:
f.write(self.txtFile.toPlainText()) def pageSet(self):
printSetDialog = QPageSetupDialog(self.printer,self)
printSetDialog.exec_() def printFile(self):
printDialog = QPrintDialog(self.printer,self)
if QDialog.Accepted == printDialog.exec_():
self.txtFile.print(self.printer) if __name__ == '__main__':
app = QApplication(sys.argv)
ex = Example()
ex.show()
sys.exit(app.exec_())
消息对话框（QMessageBox）
效果如下：
参考：
https://zhuanlan.zhihu.com/p/29795495
完整代码：
from PyQt5.QtWidgets import (QApplication, QWidget, QLabel,QPushButton, QMessageBox,QGridLayout,QTextEdit,QCheckBox)
import sys
from PyQt5.QtGui import QIcon,QPixmap class Example(QWidget): def __init__(self):
super().__init__()
self.initUI() def initUI(self):
self.setGeometry(500,500,400,200)
self.setWindowTitle("标准输入对话框")
self.setWindowIcon(QIcon("11.ico"))
gridLayout = QGridLayout()
self.lb = QLabel("你选择了abort！")
self.btn1 = QPushButton("提示")
self.btn2 = QPushButton("询问")
self.btn3 = QPushButton("警告")
self.btn4 = QPushButton("错误")
self.btn5 = QPushButton("关于")
self.btn6 = QPushButton("关于QT")
gridLayout.addWidget(self.lb,0,0,1,1)
gridLayout.addWidget(self.btn1,1,0,1,1)
gridLayout.addWidget(self.btn2,1,1,1,1)
gridLayout.addWidget(self.btn3,1,2,1,1)
gridLayout.addWidget(self.btn4,3,0,1,1)
gridLayout.addWidget(self.btn5,3,1,1,1)
gridLayout.addWidget(self.btn6,3,2,1,1)
self.setLayout(gridLayout) self.btn1.clicked.connect(self.information_dialog)
self.btn2.clicked.connect(self.question_dialog)
self.btn3.clicked.connect(self.warning_dialog)
self.btn4.clicked.connect(self.critical_dialog)
self.btn5.clicked.connect(self.about_dialog)
self.btn6.clicked.connect(self.about_QT_dialog) def information_dialog(self):
reply = QMessageBox.information(self,"提示对话框","这是一个提示对话框", QMessageBox.Ok | QMessageBox.Close, QMessageBox.Close)
if reply == QMessageBox.Ok:
self.lb.setText("你选择了information_dialog的ok！")
else:
self.lb.setText("你选择了information_dialog的close！") def question_dialog(self):
reply = QMessageBox.question(self,"询问对话框窗口标题！","这是一个询问对话框。。。",QMessageBox.Yes|QMessageBox.No|QMessageBox.Cancel,QMessageBox.No)
if reply == QMessageBox.Yes:
self.lb.setText("你选择了question_dialog的Yes")
elif reply == QMessageBox.No:
self.lb.setText("你选择了question_dialog的No")
else:
self.lb.setText("你选择了question_dialog的Cancel") def warning_dialog(self):
# reply = QMessageBox.warning(self,'警告','这是一个警告消息对话框', QMessageBox.Save | QMessageBox.Discard | QMessageBox.Cancel, QMessageBox.Save)
cb = QCheckBox('所有文档都按此操作')
msgBox = QMessageBox()
msgBox.setWindowTitle('警告')
msgBox.setIcon(QMessageBox.Warning)
msgBox.setText('这是一个警告消息对话框')
msgBox.setInformativeText('出现更改愿意保存吗?')
Save = msgBox.addButton('保存', QMessageBox.AcceptRole)
NoSave = msgBox.addButton('取消', QMessageBox.RejectRole)
Cancel = msgBox.addButton('不保存', QMessageBox.DestructiveRole)
msgBox.setDefaultButton(Save)
msgBox.setCheckBox(cb)
cb.stateChanged.connect(self.check)
reply = msgBox.exec()
if reply == QMessageBox.AcceptRole:
self.lb.setText('你选择了保存！')
elif reply == QMessageBox.RejectRole:
self.lb.setText('你选择了取消！')
else:
self.lb.setText('你选择了不保存！') def check(self):
print(self.sender().isChecked())
if self.sender().isChecked():
self.lb.setText('你打勾了哦')
else:
self.lb.setText('怎么又不打了啊') def critical_dialog(self):
# reply = QMessageBox.critical(self,'错误','这是一个错误消息对话框', QMessageBox.Retry | QMessageBox.Abort | QMessageBox.Ignore , QMessageBox.Retry)
msgBox = QMessageBox()
msgBox.setWindowTitle('错误')
msgBox.setIcon(QMessageBox.Critical)
msgBox.setText("这是一个错误消息对话框")
msgBox.setStandardButtons(QMessageBox.Retry | QMessageBox.Abort | QMessageBox.Ignore)
msgBox.setDefaultButton(QMessageBox.Retry)
msgBox.setDetailedText('这是详细的信息：学点编程吧，我爱你！')
reply = msgBox.exec() if reply == QMessageBox.Retry:
self.lb.setText('你选择了Retry！')
elif reply == QMessageBox.Abort:
self.lb.setText('你选择了Abort！')
else:
self.lb.setText('你选择了Ignore！') def about_dialog(self):
# msgBox = QMessageBox.about(self,"关于对话框标题","这是一个关于对话框,是个加拿大小红旗")
msgBox = QMessageBox(QMessageBox.NoIcon ,"关于对话框标题","这是一个关于对话框内容...")
msgBox.setIconPixmap(QPixmap("22.ico"))
msgBox.exec() def about_QT_dialog(self):
msgBox = QMessageBox.aboutQt(self,"关于QT的对话框标题") if __name__ == '__main__':
app = QApplication(sys.argv)
ex = Example()
ex.show()
sys.exit(app.exec_())
3种密码输入框的输入方式
- 输入的密码不可见；
- 输入的密码可见，但是鼠标点击其他控件后，密码不可见；
- 输入的密码不可见，同时为了更加的安全，屏蔽了鼠标右键、禁用复制、粘贴快捷键、鼠标在密码框中不可移动，不可全选。就类似我们在输入QQ密码的时候一样。
效果如下：
参考：
https://zhuanlan.zhihu.com/p/30152208
完整代码：
进度对话框（QProgressDialog）
效果如下：
参考：
https://zhuanlan.zhihu.com/p/30283367
完整代码：
from PyQt5.QtWidgets import (QApplication, QWidget, QLabel,QPushButton, QMessageBox,QGridLayout,QLineEdit,QProgressDialog)
import sys
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import Qt class Example(QWidget): def __init__(self):
super().__init__()
self.initUI() def initUI(self):
self.setGeometry(500,500,400,200)
self.setWindowTitle("进度对话框")
self.setWindowIcon(QIcon("11.ico"))
gridLayout = QGridLayout()
self.lb = QLabel("文件数量")
self.lineEdit = QLineEdit("")
self.btn = QPushButton("开始")
gridLayout.addWidget(self.lb,0,0,1,1)
gridLayout.addWidget(self.lineEdit,0,1,1,3)
gridLayout.addWidget(self.btn,1,1,1,1)
self.setLayout(gridLayout) self.btn.clicked.connect(self.startProcess) def startProcess(self):
num = int(self.lineEdit.text())
process = QProgressDialog(self)
process.setWindowTitle("进度条的进程对话框")
process.setWindowIcon(QIcon("11.ico"))
process.setLabelText("正在操作中。。。")
process.setCancelButtonText("cancel")
process.setMinimumDuration(3) #设置进度条的最小持续时间，若进度时间少于3000ms 则不会出现
process.setWindowModality(Qt.WindowModal)
process.setRange(0,num)
for i in range(num):
process.setValue(i)
if process.wasCanceled():
QMessageBox.warning(self,"下载提示","操作失败")
break
else:
process.setValue(num)
QMessageBox.information(self,"下载提示","操作成功了") if __name__ == '__main__':
app = QApplication(sys.argv)
ex = Example()
ex.show()
sys.exit(app.exec_())
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