#!/usr/bin/env python ############################################################################# ## ## Copyright (C) 2013 Riverbank Computing Limited. ## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). ## All rights reserved. ## ## This file is part of the examples of PyQt. ## ## $QT_BEGIN_LICENSE:BSD$ ## You may use this file under the terms of the BSD license as follows: ## ## "Redistribution and use in source and binary forms, with or without ## modification, are permitted provided that the following conditions are ## met: ## * Redistributions of source code must retain the above copyright ## notice, this list of conditions and the following disclaimer. ## * Redistributions in binary form must reproduce the above copyright ## notice, this list of conditions and the following disclaimer in ## the documentation and/or other materials provided with the ## distribution. ## * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor ## the names of its contributors may be used to endorse or promote ## products derived from this software without specific prior written ## permission. ## ## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ## $QT_END_LICENSE$ ## ############################################################################# from PyQt5.QtCore import Qt from PyQt5.QtGui import QKeySequence from PyQt5.QtWidgets import (QAction, QActionGroup, QApplication, QFrame, QLabel, QMainWindow, QMenu, QMessageBox, QSizePolicy, QVBoxLayout, QWidget) class MainWindow(QMainWindow): def __init__(self): super(MainWindow, self).__init__() widget = QWidget() self.setCentralWidget(widget) topFiller = QWidget() topFiller.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding) self.infoLabel = QLabel( "Choose a menu option, or right-click to invoke a context menu", alignment=Qt.AlignCenter) self.infoLabel.setFrameStyle(QFrame.StyledPanel | QFrame.Sunken) bottomFiller = QWidget() bottomFiller.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding) vbox = QVBoxLayout() vbox.setContentsMargins(5, 5, 5, 5) vbox.addWidget(topFiller) vbox.addWidget(self.infoLabel) vbox.addWidget(bottomFiller) widget.setLayout(vbox) self.createActions() self.createMenus() message = "A context menu is available by right-clicking" self.statusBar().showMessage(message) self.setWindowTitle("Menus") self.setMinimumSize(160,160) self.resize(480,320) def contextMenuEvent(self, event): menu = QMenu(self) menu.addAction(self.cutAct) menu.addAction(self.copyAct) menu.addAction(self.pasteAct) menu.exec_(event.globalPos()) def newFile(self): self.infoLabel.setText("Invoked File|New") def open(self): self.infoLabel.setText("Invoked File|Open") def save(self): self.infoLabel.setText("Invoked File|Save") def print_(self): self.infoLabel.setText("Invoked File|Print") def undo(self): self.infoLabel.setText("Invoked Edit|Undo") def redo(self): self.infoLabel.setText("Invoked Edit|Redo") def cut(self): self.infoLabel.setText("Invoked Edit|Cut") def copy(self): self.infoLabel.setText("Invoked Edit|Copy") def paste(self): self.infoLabel.setText("Invoked Edit|Paste") def bold(self): self.infoLabel.setText("Invoked Edit|Format|Bold") def italic(self): self.infoLabel.setText("Invoked Edit|Format|Italic") def leftAlign(self): self.infoLabel.setText("Invoked Edit|Format|Left Align") def rightAlign(self): self.infoLabel.setText("Invoked Edit|Format|Right Align") def justify(self): self.infoLabel.setText("Invoked Edit|Format|Justify") def center(self): self.infoLabel.setText("Invoked Edit|Format|Center") def setLineSpacing(self): self.infoLabel.setText("Invoked Edit|Format|Set Line Spacing") def setParagraphSpacing(self): self.infoLabel.setText("Invoked Edit|Format|Set Paragraph Spacing") def about(self): self.infoLabel.setText("Invoked Help|About") QMessageBox.about(self, "About Menu", "The Menu example shows how to create menu-bar menus " "and context menus.") def aboutQt(self): self.infoLabel.setText("Invoked Help|About Qt") def createActions(self): self.newAct = QAction("&New", self, shortcut=QKeySequence.New, statusTip="Create a new file", triggered=self.newFile) self.openAct = QAction("&Open...", self, shortcut=QKeySequence.Open, statusTip="Open an existing file", triggered=self.open) self.saveAct = QAction("&Save", self, shortcut=QKeySequence.Save, statusTip="Save the document to disk", triggered=self.save) self.printAct = QAction("&Print...", self, shortcut=QKeySequence.Print, statusTip="Print the document", triggered=self.print_) self.exitAct = QAction("E&xit", self, shortcut="Ctrl+Q", statusTip="Exit the application", triggered=self.close) self.undoAct = QAction("&Undo", self, shortcut=QKeySequence.Undo, statusTip="Undo the last operation", triggered=self.undo) self.redoAct = QAction("&Redo", self, shortcut=QKeySequence.Redo, statusTip="Redo the last operation", triggered=self.redo) self.cutAct = QAction("Cu&t", self, shortcut=QKeySequence.Cut, statusTip="Cut the current selection's contents to the clipboard", triggered=self.cut) self.copyAct = QAction("&Copy", self, shortcut=QKeySequence.Copy, statusTip="Copy the current selection's contents to the clipboard", triggered=self.copy) self.pasteAct = QAction("&Paste", self, shortcut=QKeySequence.Paste, statusTip="Paste the clipboard's contents into the current selection", triggered=self.paste) self.boldAct = QAction("&Bold", self, checkable=True, shortcut="Ctrl+B", statusTip="Make the text bold", triggered=self.bold) boldFont = self.boldAct.font() boldFont.setBold(True) self.boldAct.setFont(boldFont) self.italicAct = QAction("&Italic", self, checkable=True, shortcut="Ctrl+I", statusTip="Make the text italic", triggered=self.italic) italicFont = self.italicAct.font() italicFont.setItalic(True) self.italicAct.setFont(italicFont) self.setLineSpacingAct = QAction("Set &Line Spacing...", self, statusTip="Change the gap between the lines of a paragraph", triggered=self.setLineSpacing) self.setParagraphSpacingAct = QAction("Set &Paragraph Spacing...", self, statusTip="Change the gap between paragraphs", triggered=self.setParagraphSpacing) self.aboutAct = QAction("&About", self, statusTip="Show the application's About box", triggered=self.about) self.aboutQtAct = QAction("About &Qt", self, statusTip="Show the Qt library's About box", triggered=self.aboutQt) self.aboutQtAct.triggered.connect(QApplication.instance().aboutQt) self.leftAlignAct = QAction("&Left Align", self, checkable=True, shortcut="Ctrl+L", statusTip="Left align the selected text", triggered=self.leftAlign) self.rightAlignAct = QAction("&Right Align", self, checkable=True, shortcut="Ctrl+R", statusTip="Right align the selected text", triggered=self.rightAlign) self.justifyAct = QAction("&Justify", self, checkable=True, shortcut="Ctrl+J", statusTip="Justify the selected text", triggered=self.justify) self.centerAct = QAction("&Center", self, checkable=True, shortcut="Ctrl+C", statusTip="Center the selected text", triggered=self.center) self.alignmentGroup = QActionGroup(self) self.alignmentGroup.addAction(self.leftAlignAct) self.alignmentGroup.addAction(self.rightAlignAct) self.alignmentGroup.addAction(self.justifyAct) self.alignmentGroup.addAction(self.centerAct) self.leftAlignAct.setChecked(True) def createMenus(self): self.fileMenu = self.menuBar().addMenu("&File") self.fileMenu.addAction(self.newAct) self.fileMenu.addAction(self.openAct) self.fileMenu.addAction(self.saveAct) self.fileMenu.addAction(self.printAct) self.fileMenu.addSeparator() self.fileMenu.addAction(self.exitAct) self.editMenu = self.menuBar().addMenu("&Edit") self.editMenu.addAction(self.undoAct) self.editMenu.addAction(self.redoAct) self.editMenu.addSeparator() self.editMenu.addAction(self.cutAct) self.editMenu.addAction(self.copyAct) self.editMenu.addAction(self.pasteAct) self.editMenu.addSeparator() self.helpMenu = self.menuBar().addMenu("&Help") self.helpMenu.addAction(self.aboutAct) self.helpMenu.addAction(self.aboutQtAct) self.formatMenu = self.editMenu.addMenu("&Format") self.formatMenu.addAction(self.boldAct) self.formatMenu.addAction(self.italicAct) self.formatMenu.addSeparator().setText("Alignment") self.formatMenu.addAction(self.leftAlignAct) self.formatMenu.addAction(self.rightAlignAct) self.formatMenu.addAction(self.justifyAct) self.formatMenu.addAction(self.centerAct) self.formatMenu.addSeparator() self.formatMenu.addAction(self.setLineSpacingAct) self.formatMenu.addAction(self.setParagraphSpacingAct) if __name__ == '__main__': import sys app = QApplication(sys.argv) window = MainWindow() window.show() sys.exit(app.exec_())