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【PyQt5-Qt Designer】对话框系列

2019-01-03 09:57:26来源：博客园阅读 ()

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("25")
        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("100000")
        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_())