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