下面来记录一下Qt中的形形色色的Dialg。。。。
直接给出PySide自带的example,因为我觉得我的改写也只是“依葫芦画瓢”。。。放心，Qt是开源的，真伟大。。
#!/usr/bin/env python """PyQt4 port of the dialogs/standarddialogs example from Qt v4.x""" # This is only needed for Python v2 but is harmless for Python v3. #import sip #sip.setapi('QString', 2) import sys from PySide import QtCore, QtGui class Dialog(QtGui.QDialog): MESSAGE = "<p>Message boxes have a caption, a text, and up to three " \ "buttons, each with standard or custom texts.</p>" \ "<p>Click a button to close the message box. Pressing the Esc " \ "button will activate the detected escape button (if any).</p>" def __init__(self, parent=None): super(Dialog, self).__init__(parent) self.openFilesPath = '' self.errorMessageDialog = QtGui.QErrorMessage(self) frameStyle = QtGui.QFrame.Sunken | QtGui.QFrame.Panel self.integerLabel = QtGui.QLabel() self.integerLabel.setFrameStyle(frameStyle) self.integerButton = QtGui.QPushButton("QInputDialog.get&Integer()") self.doubleLabel = QtGui.QLabel() self.doubleLabel.setFrameStyle(frameStyle) self.doubleButton = QtGui.QPushButton("QInputDialog.get&Double()") self.itemLabel = QtGui.QLabel() self.itemLabel.setFrameStyle(frameStyle) self.itemButton = QtGui.QPushButton("QInputDialog.getIte&m()") self.textLabel = QtGui.QLabel() self.textLabel.setFrameStyle(frameStyle) self.textButton = QtGui.QPushButton("QInputDialog.get&Text()") self.colorLabel = QtGui.QLabel() self.colorLabel.setFrameStyle(frameStyle) self.colorButton = QtGui.QPushButton("QColorDialog.get&Color()") self.fontLabel = QtGui.QLabel() self.fontLabel.setFrameStyle(frameStyle) self.fontButton = QtGui.QPushButton("QFontDialog.get&Font()") self.directoryLabel = QtGui.QLabel() self.directoryLabel.setFrameStyle(frameStyle) self.directoryButton = QtGui.QPushButton("QFileDialog.getE&xistingDirectory()") self.openFileNameLabel = QtGui.QLabel() self.openFileNameLabel.setFrameStyle(frameStyle) self.openFileNameButton = QtGui.QPushButton("QFileDialog.get&OpenFileName()") self.openFileNamesLabel = QtGui.QLabel() self.openFileNamesLabel.setFrameStyle(frameStyle) self.openFileNamesButton = QtGui.QPushButton("QFileDialog.&getOpenFileNames()") self.saveFileNameLabel = QtGui.QLabel() self.saveFileNameLabel.setFrameStyle(frameStyle) self.saveFileNameButton = QtGui.QPushButton("QFileDialog.get&SaveFileName()") self.criticalLabel = QtGui.QLabel() self.criticalLabel.setFrameStyle(frameStyle) self.criticalButton = QtGui.QPushButton("QMessageBox.critica&l()") self.informationLabel = QtGui.QLabel() self.informationLabel.setFrameStyle(frameStyle) self.informationButton = QtGui.QPushButton("QMessageBox.i&nformation()") self.questionLabel = QtGui.QLabel() self.questionLabel.setFrameStyle(frameStyle) self.questionButton = QtGui.QPushButton("QMessageBox.&question()") self.warningLabel = QtGui.QLabel() self.warningLabel.setFrameStyle(frameStyle) self.warningButton = QtGui.QPushButton("QMessageBox.&warning()") self.errorLabel = QtGui.QLabel() self.errorLabel.setFrameStyle(frameStyle) self.errorButton = QtGui.QPushButton("QErrorMessage.show&M&essage()") self.integerButton.clicked.connect(self.setInteger) self.doubleButton.clicked.connect(self.setDouble) self.itemButton.clicked.connect(self.setItem) self.textButton.clicked.connect(self.setText) self.colorButton.clicked.connect(self.setColor) self.fontButton.clicked.connect(self.setFont) self.directoryButton.clicked.connect(self.setExistingDirectory) self.openFileNameButton.clicked.connect(self.setOpenFileName) self.openFileNamesButton.clicked.connect(self.setOpenFileNames) self.saveFileNameButton.clicked.connect(self.setSaveFileName) self.criticalButton.clicked.connect(self.criticalMessage) self.informationButton.clicked.connect(self.informationMessage) self.questionButton.clicked.connect(self.questionMessage) self.warningButton.clicked.connect(self.warningMessage) self.errorButton.clicked.connect(self.errorMessage) self.native = QtGui.QCheckBox() self.native.setText("Use native file dialog.") self.native.setChecked(True) if sys.platform not in ("win32", "darwin"): self.native.hide() layout = QtGui.QGridLayout() layout.setColumnStretch(1, 1) layout.setColumnMinimumWidth(1, 250) layout.addWidget(self.integerButton, 0, 0) layout.addWidget(self.integerLabel, 0, 1) layout.addWidget(self.doubleButton, 1, 0) layout.addWidget(self.doubleLabel, 1, 1) layout.addWidget(self.itemButton, 2, 0) layout.addWidget(self.itemLabel, 2, 1) layout.addWidget(self.textButton, 3, 0) layout.addWidget(self.textLabel, 3, 1) layout.addWidget(self.colorButton, 4, 0) layout.addWidget(self.colorLabel, 4, 1) layout.addWidget(self.fontButton, 5, 0) layout.addWidget(self.fontLabel, 5, 1) layout.addWidget(self.directoryButton, 6, 0) layout.addWidget(self.directoryLabel, 6, 1) layout.addWidget(self.openFileNameButton, 7, 0) layout.addWidget(self.openFileNameLabel, 7, 1) layout.addWidget(self.openFileNamesButton, 8, 0) layout.addWidget(self.openFileNamesLabel, 8, 1) layout.addWidget(self.saveFileNameButton, 9, 0) layout.addWidget(self.saveFileNameLabel, 9, 1) layout.addWidget(self.criticalButton, 10, 0) layout.addWidget(self.criticalLabel, 10, 1) layout.addWidget(self.informationButton, 11, 0) layout.addWidget(self.informationLabel, 11, 1) layout.addWidget(self.questionButton, 12, 0) layout.addWidget(self.questionLabel, 12, 1) layout.addWidget(self.warningButton, 13, 0) layout.addWidget(self.warningLabel, 13, 1) layout.addWidget(self.errorButton, 14, 0) layout.addWidget(self.errorLabel, 14, 1) layout.addWidget(self.native, 15, 0) self.setLayout(layout) self.setWindowTitle("Standard Dialogs") def setInteger(self): i, ok = QtGui.QInputDialog.getInteger(self, "QInputDialog.getInteger()", "Percentage:", 25, 0, 100, 1) if ok: self.integerLabel.setText("%d%%" % i) def setDouble(self): d, ok = QtGui.QInputDialog.getDouble(self, "QInputDialog.getDouble()", "Amount:", 37.56, -10000, 10000, 2) #最后一位2指的是小数的位数 if ok: self.doubleLabel.setText("$%g" % d) def setItem(self): items = ("Spring", "Summer", "Fall", "Winter") item, ok = QtGui.QInputDialog.getItem(self, "QInputDialog.getItem()", "Season:", items, 0, False) if ok and item: self.itemLabel.setText(item) def setText(self): text, ok = QtGui.QInputDialog.getText(self, "QInputDialog.getText()", "User name:", QtGui.QLineEdit.Normal, QtCore.QDir.home().dirName()) if ok and text != '': self.textLabel.setText(text) def setColor(self): color = QtGui.QColorDialog.getColor(QtCore.Qt.green, self) if color.isValid(): self.colorLabel.setText(color.name()) self.colorLabel.setPalette(QtGui.QPalette(color)) self.colorLabel.setAutoFillBackground(True) def setFont(self): font, ok = QtGui.QFontDialog.getFont(QtGui.QFont(self.fontLabel.text()), self) if ok: self.fontLabel.setText(font.key()) self.fontLabel.setFont(font) def setExistingDirectory(self): options = QtGui.QFileDialog.DontResolveSymlinks | QtGui.QFileDialog.ShowDirsOnly directory = QtGui.QFileDialog.getExistingDirectory(self, "QFileDialog.getExistingDirectory()", self.directoryLabel.text(), options) if directory: self.directoryLabel.setText(directory) def setOpenFileName(self): options = QtGui.QFileDialog.Options() if not self.native.isChecked(): options |= QtGui.QFileDialog.DontUseNativeDialog fileName, filtr = QtGui.QFileDialog.getOpenFileName(self, "QFileDialog.getOpenFileName()", self.openFileNameLabel.text(), "All Files (*);;Text Files (*.txt)", "", options) if fileName: self.openFileNameLabel.setText(fileName) def setOpenFileNames(self): options = QtGui.QFileDialog.Options() if not self.native.isChecked(): options |= QtGui.QFileDialog.DontUseNativeDialog files, filtr = QtGui.QFileDialog.getOpenFileNames(self, "QFileDialog.getOpenFileNames()", self.openFilesPath, "All Files (*);;Text Files (*.txt)", "", options) if files: self.openFilesPath = files[0] self.openFileNamesLabel.setText("[%s]" % ', '.join(files)) def setSaveFileName(self): options = QtGui.QFileDialog.Options() if not self.native.isChecked(): options |= QtGui.QFileDialog.DontUseNativeDialog fileName, filtr = QtGui.QFileDialog.getSaveFileName(self, "QFileDialog.getSaveFileName()", self.saveFileNameLabel.text(), "All Files (*);;Text Files (*.txt)", "", options) if fileName: self.saveFileNameLabel.setText(fileName) def criticalMessage(self): reply = QtGui.QMessageBox.critical(self, "QMessageBox.critical()", Dialog.MESSAGE, QtGui.QMessageBox.Abort | QtGui.QMessageBox.Retry | QtGui.QMessageBox.Ignore) if reply == QtGui.QMessageBox.Abort: self.criticalLabel.setText("Abort") elif reply == QtGui.QMessageBox.Retry: self.criticalLabel.setText("Retry") else: self.criticalLabel.setText("Ignore") def informationMessage(self): reply = QtGui.QMessageBox.information(self, "QMessageBox.information()", Dialog.MESSAGE) if reply == QtGui.QMessageBox.Ok: self.informationLabel.setText("OK") else: self.informationLabel.setText("Escape") def questionMessage(self): reply = QtGui.QMessageBox.question(self, "QMessageBox.question()", Dialog.MESSAGE, QtGui.QMessageBox.Yes | QtGui.QMessageBox.No | QtGui.QMessageBox.Cancel) if reply == QtGui.QMessageBox.Yes: self.questionLabel.setText("Yes") elif reply == QtGui.QMessageBox.No: self.questionLabel.setText("No") else: self.questionLabel.setText("Cancel") def warningMessage(self): msgBox = QtGui.QMessageBox(QtGui.QMessageBox.Warning, "QMessageBox.warning()", Dialog.MESSAGE, QtGui.QMessageBox.NoButton, self) msgBox.addButton("Save &Again", QtGui.QMessageBox.AcceptRole) msgBox.addButton("&Continue", QtGui.QMessageBox.RejectRole) if msgBox.exec_() == QtGui.QMessageBox.AcceptRole: self.warningLabel.setText("Save Again") else: self.warningLabel.setText("Continue") def errorMessage(self): self.errorMessageDialog.showMessage("This dialog shows and remembers " "error messages. If the checkbox is checked (as it is by " "default), the shown message will be shown again, but if the " "user unchecks the box the message will not appear again if " "QErrorMessage.showMessage() is called with the same message.") self.errorLabel.setText("If the box is unchecked, the message won't " "appear again.") if __name__ == '__main__': app = QtGui.QApplication(sys.argv) dialog = Dialog() sys.exit(dialog.exec_())
下面给出效果图：
（1）整体效果图
（2）下面依次展示出各种形式的对话框：
（获取的是整数值）
（获取的Double型的数据）
（有下拉列表选择的对话框）
（可以获取用户输入的对话框）
（改变颜色的对话框）
（感觉好大的一个对话框啊，但是他是内置好的，当然如果界面你不喜欢的话，调出他的库函数，你再重写即可，要是偷懒的话，那就直接调用呗）
（获取文件夹的路径）
（获取文件路径）
（样子好像和上一张一样但是，它可以获取多个文件的路径）
（获取保存文件的路径，如文件已存在则覆盖，如不存在则新建）
（类似于警报了，还会有声音）
（信息提示）
（注意图标的不同，而且这张的几个按钮是将默认按钮替换为其他按钮啦）
（这几张其实都差不多，注意醒目的logo就好）
