用pyqt5创建简单控件

from PyQt5.QtCore import QDateTime,Qt,QTimer
from PyQt5.QtWidgets import (QApplication,QCheckBox,QComboBox,QDateTimeEdit,
                             QDial,QDialog,QGridLayout,QGroupBox,QHBoxLayout,
                             QLabel,QLineEdit,QProgressBar,QPushButton,QRadioButton,
                             QScrollBar,QSizePolicy,QSlider,QSpinBox,QStyleFactory,
                             QTableWidget,QTabWidget,QTextEdit,QVBoxLayout,QWidget)


class WidgetGallery(QDialog):
    def __init__(self,parent=None):
        super(WidgetGallery,self).__init__(parent)

        self.originalPalette = QApplication.palette()

        styleComboBox = QComboBox()
        styleComboBox.addItems(QStyleFactory.keys())

        styleLabel = QLabel("&Style:")
        styleLabel.setBuddy(styleComboBox)

        self.useStylePaletteCheckBox = QCheckBox("&Use style's standard palette")
        self.useStylePaletteCheckBox.setChecked(True)

        disableWidgetsCheckBox = QCheckBox("&Disable widget")

        self.createTopLeftGroupBox()
        self.createTopRightGroupBox()
        self.createBottomLeftTabWidget()
        self.createBottomRightGroupBox()
        self.createProgressBar()

        styleComboBox.activated[str].connect(self.changeStyle)
        self.useStylePaletteCheckBox.toggled.connect(self.changePalette)
        disableWidgetsCheckBox.toggled.connect(self.topLeftGroupBox.setDisabled)
        disableWidgetsCheckBox.toggled.connect(self.bottomLeftTabWidget.setDisabled)
        disableWidgetsCheckBox.toggled.connect(self.topRightGroupBox.setDisabled)
        disableWidgetsCheckBox.toggled.connect(self.bottomRightGroupBox.setDisabled)

        topLayout = QHBoxLayout()
        topLayout.addWidget(styleLabel)
        topLayout.addWidget(styleComboBox)
        topLayout.addStretch(1)
        topLayout.addWidget(self.useStylePaletteCheckBox)
        topLayout.addWidget(disableWidgetsCheckBox)

        mainLayout = QGridLayout()
        mainLayout.addLayout(topLayout,0,0,1,2)
        mainLayout.addWidget(self.topLeftGroupBox,1,0)
        mainLayout.addWidget(self.topRightGroupBox,1,1)
        mainLayout.addWidget(self.bottomLeftTabWidget,2,0)
        mainLayout.addWidget(self.bottomRightGroupBox,2,1)
        mainLayout.addWidget(self.progressBar,3,0,1,2)
        mainLayout.setRowStretch(1,1)
        mainLayout.setRowStretch(2,1)
        mainLayout.setColumnStretch(0,1)
        mainLayout.setColumnStretch(1,1)
        self.setLayout(mainLayout)

        self.setWindowTitle("Styles")
        self.changeStyle('Windows')

    def changeStyle(self,styleName):
        QApplication.setStyle(QStyleFactory.create(styleName))
        self.changePalette()

    def changePalette(self):
        if (self.useStylePaletteCheckBox.isChecked()):
            QApplication.setPalette(QApplication.style().standardPalette())
        else:
            QApplication.setPalette(self.originalPalette)

    def advanceProgressBar(selfself):
        curVal = self.progressBar.value()
        maxVal = self.progressBar.maximum()
        self.progressBar.setValue(curVal + (maxVal-curVal)/100)

    def createTopLeftGroupBox(self):
        self.topLeftGroupBox = QGroupBox("Group 1")

        radioButton1 = QRadioButton("Radio button 1")
        radioButton2 = QRadioButton("Radio button 2")
        radioButton3 = QRadioButton("Radio button 3")
        radioButton1.setChecked(True)

        checkBox = QCheckBox("Tri-state check box")
        checkBox.setTristate(True)
        checkBox.setCheckState(Qt.PartiallyChecked)

        layout = QVBoxLayout()
        layout.addWidget(radioButton1)
        layout.addWidget(radioButton2)
        layout.addWidget(radioButton3)
        layout.addWidget(checkBox)
        layout.addStretch(1)
        self.topLeftGroupBox.setLayout(layout)

    def createTopRightGroupBox(self):
        self.topRightGroupBox = QGroupBox("Group 2")

        defaultPushButton = QPushButton("Default Push Button")
        defaultPushButton.setDefault(True)

        togglePushButton = QPushButton("Toggle Push Button")
        togglePushButton.setCheckable(True)
        togglePushButton.setChecked(True)

        flatPushButton = QPushButton("Flat Push Button")
        flatPushButton.setFlat(True)

        layout = QVBoxLayout()
        layout.addWidget(defaultPushButton)
        layout.addWidget(togglePushButton)
        layout.addWidget(flatPushButton)
        layout.addStretch(1)
        self.topRightGroupBox.setLayout(layout)

    def createBottomLeftTabWidget(self):
        self.bottomLeftTabWidget = QTabWidget()
        self.bottomLeftTabWidget.setSizePolicy(QSizePolicy.Preferred,
                                               QSizePolicy.Ignored)
        tab1 = QWidget()
        tableWidget = QTableWidget(10,10)

        tablhbox = QHBoxLayout()
        tablhbox.setContentsMargins(5,5,5,5)
        tablhbox.addWidget(tableWidget)
        tab1.setLayout(tablhbox)

        tab2 = QWidget()
        textEdit = QTextEdit()

        textEdit.setPlainText("你好呀，"
                              "抱抱！")
        tab2hbox = QHBoxLayout()
        tab2hbox.setContentsMargins(5,5,5,5)
        tab2hbox.addWidget(textEdit)
        tab2.setLayout(tab2hbox)

        self.bottomLeftTabWidget.addTab(tab1,"&Table")
        self.bottomLeftTabWidget.addTab(tab2,"Text &Edit")

    def createBottomRightGroupBox(self):
        self.bottomRightGroupBox = QGroupBox("Group 3")
        self.bottomRightGroupBox.setCheckable(True)
        self.bottomRightGroupBox.setChecked(True)

        lineEdit = QLineEdit('s3cRe7')
        lineEdit.setEchoMode(QLineEdit.Password)

        spinBox = QSpinBox(self.bottomRightGroupBox)
        spinBox.setValue(50)

        dateTimeEdit = QDateTimeEdit(self.bottomRightGroupBox)
        dateTimeEdit.setDateTime(QDateTime.currentDateTime())

        slider = QSlider(Qt.Horizontal,self.bottomRightGroupBox)
        slider.setValue(40)

        scrollBar = QScrollBar(Qt.Horizontal,self.bottomRightGroupBox)
        scrollBar.setValue(60)

        dial = QDial(self.bottomRightGroupBox)
        dial.setValue(30)
        dial.setNotchesVisible(True)

        layout = QGridLayout()
        layout.addWidget(lineEdit,0,0,1,2)
        layout.addWidget(spinBox,1,0,1,2)
        layout.addWidget(dateTimeEdit,2,0,1,2)
        layout.addWidget(slider,3,0)
        layout.addWidget(scrollBar,4,0)
        layout.addWidget(dial,3,1,2,1)
        layout.setRowStretch(5,1)
        self.bottomRightGroupBox.setLayout(layout)

    def createProgressBar(self):
        self.progressBar = QProgressBar()
        self.progressBar.setRange(0,10000)
        self.progressBar.setValue(0)

if __name__ =='__main__':
    import sys

    app = QApplication(sys.argv)
    gallery = WidgetGallery()
    gallery.show()
    sys.exit(app.exec_())import sys

from PyQt5.QtCore import QDir, Qt
from PyQt5.QtGui import QFont, QPalette
from PyQt5.QtWidgets import (QApplication, QCheckBox, QColorDialog, QDialog,
        QErrorMessage, QFileDialog, QFontDialog, QFrame, QGridLayout,
        QInputDialog, QLabel, QLineEdit, QMessageBox, QPushButton)


class Dialog(QDialog):
    MESSAGE = "

Message boxes have a caption, a text, and up to three " \ "buttons, each with standard or custom texts.

" \ "

Click a button to close the message box. Pressing the Esc " \ "button will activate the detected escape button (if any).

" def __init__(self, parent=None): super(Dialog, self).__init__(parent) self.openFilesPath = '' self.errorMessageDialog = QErrorMessage(self) frameStyle = QFrame.Sunken | QFrame.Panel self.integerLabel = QLabel() self.integerLabel.setFrameStyle(frameStyle) self.integerButton = QPushButton("QInputDialog.get&Int()") self.doubleLabel = QLabel() self.doubleLabel.setFrameStyle(frameStyle) self.doubleButton = QPushButton("QInputDialog.get&Double()") self.itemLabel = QLabel() self.itemLabel.setFrameStyle(frameStyle) self.itemButton = QPushButton("QInputDialog.getIte&m()") self.textLabel = QLabel() self.textLabel.setFrameStyle(frameStyle) self.textButton = QPushButton("QInputDialog.get&Text()") self.colorLabel = QLabel() self.colorLabel.setFrameStyle(frameStyle) self.colorButton = QPushButton("QColorDialog.get&Color()") self.fontLabel = QLabel() self.fontLabel.setFrameStyle(frameStyle) self.fontButton = QPushButton("QFontDialog.get&Font()") self.directoryLabel = QLabel() self.directoryLabel.setFrameStyle(frameStyle) self.directoryButton = QPushButton("QFileDialog.getE&xistingDirectory()") self.openFileNameLabel = QLabel() self.openFileNameLabel.setFrameStyle(frameStyle) self.openFileNameButton = QPushButton("QFileDialog.get&OpenFileName()") self.openFileNamesLabel = QLabel() self.openFileNamesLabel.setFrameStyle(frameStyle) self.openFileNamesButton = QPushButton("QFileDialog.&getOpenFileNames()") self.saveFileNameLabel = QLabel() self.saveFileNameLabel.setFrameStyle(frameStyle) self.saveFileNameButton = QPushButton("QFileDialog.get&SaveFileName()") self.criticalLabel = QLabel() self.criticalLabel.setFrameStyle(frameStyle) self.criticalButton = QPushButton("QMessageBox.critica&l()") self.informationLabel = QLabel() self.informationLabel.setFrameStyle(frameStyle) self.informationButton = QPushButton("QMessageBox.i&nformation()") self.questionLabel = QLabel() self.questionLabel.setFrameStyle(frameStyle) self.questionButton = QPushButton("QMessageBox.&question()") self.warningLabel = QLabel() self.warningLabel.setFrameStyle(frameStyle) self.warningButton = QPushButton("QMessageBox.&warning()") self.errorLabel = QLabel() self.errorLabel.setFrameStyle(frameStyle) self.errorButton = 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 = QCheckBox() self.native.setText("Use native file dialog.") self.native.setChecked(True) if sys.platform not in ("win32", "darwin"): self.native.hide() layout = 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 = QInputDialog.getInt(self, "QInputDialog.getInt()", "Percentage:", 25, 0, 100, 1) if ok: self.integerLabel.setText("%d%%" % i) def setDouble(self): d, ok = QInputDialog.getDouble(self, "QInputDialog.getDouble()", "Amount:", 37.56, -10000, 10000, 2) if ok: self.doubleLabel.setText("$%g" % d) def setItem(self): items = ("Spring", "Summer", "Fall", "Winter") item, ok = QInputDialog.getItem(self, "QInputDialog.getItem()", "Season:", items, 0, False) if ok and item: self.itemLabel.setText(item) def setText(self): text, ok = QInputDialog.getText(self, "QInputDialog.getText()", "User name:", QLineEdit.Normal, QDir.home().dirName()) if ok and text != '': self.textLabel.setText(text) def setColor(self): color = QColorDialog.getColor(Qt.green, self) if color.isValid(): self.colorLabel.setText(color.name()) self.colorLabel.setPalette(QPalette(color)) self.colorLabel.setAutoFillBackground(True) def setFont(self): font, ok = QFontDialog.getFont(QFont(self.fontLabel.text()), self) if ok: self.fontLabel.setText(font.key()) self.fontLabel.setFont(font) def setExistingDirectory(self): options = QFileDialog.DontResolveSymlinks | QFileDialog.ShowDirsOnly directory = QFileDialog.getExistingDirectory(self, "QFileDialog.getExistingDirectory()", self.directoryLabel.text(), options=options) if directory: self.directoryLabel.setText(directory) def setOpenFileName(self): options = QFileDialog.Options() if not self.native.isChecked(): options |= QFileDialog.DontUseNativeDialog fileName, _ = QFileDialog.getOpenFileName(self, "QFileDialog.getOpenFileName()", self.openFileNameLabel.text(), "All Files (*);;Text Files (*.txt)", options=options) if fileName: self.openFileNameLabel.setText(fileName) def setOpenFileNames(self): options = QFileDialog.Options() if not self.native.isChecked(): options |= QFileDialog.DontUseNativeDialog files, _ = QFileDialog.getOpenFileNames(self, "QFileDialog.getOpenFileNames()", self.openFilesPath, "All Files (*);;Text Files (*.txt)", options=options) if files: self.openFilesPath = files[0] self.openFileNamesLabel.setText("[%s]" % ', '.join(files)) def setSaveFileName(self): options = QFileDialog.Options() if not self.native.isChecked(): options |= QFileDialog.DontUseNativeDialog fileName, _ = QFileDialog.getSaveFileName(self, "QFileDialog.getSaveFileName()", self.saveFileNameLabel.text(), "All Files (*);;Text Files (*.txt)", options=options) if fileName: self.saveFileNameLabel.setText(fileName) def criticalMessage(self): reply = QMessageBox.critical(self, "QMessageBox.critical()", Dialog.MESSAGE, QMessageBox.Abort | QMessageBox.Retry | QMessageBox.Ignore) if reply == QMessageBox.Abort: self.criticalLabel.setText("Abort") elif reply == QMessageBox.Retry: self.criticalLabel.setText("Retry") else: self.criticalLabel.setText("Ignore") def informationMessage(self): reply = QMessageBox.information(self, "QMessageBox.information()", Dialog.MESSAGE) if reply == QMessageBox.Ok: self.informationLabel.setText("OK") else: self.informationLabel.setText("Escape") def questionMessage(self): reply = QMessageBox.question(self, "QMessageBox.question()", Dialog.MESSAGE, QMessageBox.Yes | QMessageBox.No | QMessageBox.Cancel) if reply == QMessageBox.Yes: self.questionLabel.setText("Yes") elif reply == QMessageBox.No: self.questionLabel.setText("No") else: self.questionLabel.setText("Cancel") def warningMessage(self): msgBox = QMessageBox(QMessageBox.Warning, "QMessageBox.warning()", Dialog.MESSAGE, QMessageBox.NoButton, self) msgBox.addButton("Save &Again", QMessageBox.AcceptRole) msgBox.addButton("&Continue", QMessageBox.RejectRole) if msgBox.exec_() == 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 = QApplication(sys.argv) dialog = Dialog() dialog.show() sys.exit(app.exec_())