diff options
author | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2018-01-05 15:58:35 +0100 |
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committer | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2018-01-12 12:28:10 +0000 |
commit | 9f2a9aba3aff73e31ea15eb4a7a04b0e50f4ee4e (patch) | |
tree | 92dcb0c4f64df8a8375af2e1a9bb1170068c36b2 /examples/widgets/mainwindows/mdi/mdi.py | |
parent | 26c046e521c38bbfc3a263782a3bb74a7c1bf937 (diff) |
Move examples from submodule to pyside-setup
Move PySide2 examples that are owned by the Qt Company
to a new examples directory.
Done-with: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io>
Task-number: PYSIDE-363
Change-Id: I14099764d9eef2bc35e067086121427955862e3a
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Diffstat (limited to 'examples/widgets/mainwindows/mdi/mdi.py')
-rwxr-xr-x | examples/widgets/mainwindows/mdi/mdi.py | 448 |
1 files changed, 448 insertions, 0 deletions
diff --git a/examples/widgets/mainwindows/mdi/mdi.py b/examples/widgets/mainwindows/mdi/mdi.py new file mode 100755 index 000000000..b8bdd9aee --- /dev/null +++ b/examples/widgets/mainwindows/mdi/mdi.py @@ -0,0 +1,448 @@ +#!/usr/bin/env python + +############################################################################# +## +## Copyright (C) 2013 Riverbank Computing Limited. +## Copyright (C) 2016 The Qt Company Ltd. +## Contact: http://www.qt.io/licensing/ +## +## This file is part of the PySide examples of the Qt Toolkit. +## +## $QT_BEGIN_LICENSE:BSD$ +## 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 The Qt Company Ltd 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." +## +## $QT_END_LICENSE$ +## +############################################################################# + +"""PySide2 port of the widgets/draganddrop/draggabletext example from Qt v5.x, originating from PyQt""" + +from PySide2.QtCore import (QFile, QFileInfo, QPoint, QSettings, QSignalMapper, + QSize, QTextStream, Qt) +from PySide2.QtGui import QIcon, QKeySequence +from PySide2.QtWidgets import (QAction, QApplication, QFileDialog, QMainWindow, + QMdiArea, QMessageBox, QTextEdit, QWidget) + +import mdi_rc + + +class MdiChild(QTextEdit): + sequenceNumber = 1 + + def __init__(self): + super(MdiChild, self).__init__() + + self.setAttribute(Qt.WA_DeleteOnClose) + self.isUntitled = True + + def newFile(self): + self.isUntitled = True + self.curFile = "document%d.txt" % MdiChild.sequenceNumber + MdiChild.sequenceNumber += 1 + self.setWindowTitle(self.curFile + '[*]') + + self.document().contentsChanged.connect(self.documentWasModified) + + def loadFile(self, fileName): + file = QFile(fileName) + if not file.open(QFile.ReadOnly | QFile.Text): + QMessageBox.warning(self, "MDI", + "Cannot read file %s:\n%s." % (fileName, file.errorString())) + return False + + instr = QTextStream(file) + QApplication.setOverrideCursor(Qt.WaitCursor) + self.setPlainText(instr.readAll()) + QApplication.restoreOverrideCursor() + + self.setCurrentFile(fileName) + + self.document().contentsChanged.connect(self.documentWasModified) + + return True + + def save(self): + if self.isUntitled: + return self.saveAs() + else: + return self.saveFile(self.curFile) + + def saveAs(self): + fileName, _ = QFileDialog.getSaveFileName(self, "Save As", self.curFile) + if not fileName: + return False + + return self.saveFile(fileName) + + def saveFile(self, fileName): + file = QFile(fileName) + + if not file.open(QFile.WriteOnly | QFile.Text): + QMessageBox.warning(self, "MDI", + "Cannot write file %s:\n%s." % (fileName, file.errorString())) + return False + + outstr = QTextStream(file) + QApplication.setOverrideCursor(Qt.WaitCursor) + outstr << self.toPlainText() + QApplication.restoreOverrideCursor() + + self.setCurrentFile(fileName) + return True + + def userFriendlyCurrentFile(self): + return self.strippedName(self.curFile) + + def currentFile(self): + return self.curFile + + def closeEvent(self, event): + if self.maybeSave(): + event.accept() + else: + event.ignore() + + def documentWasModified(self): + self.setWindowModified(self.document().isModified()) + + def maybeSave(self): + if self.document().isModified(): + ret = QMessageBox.warning(self, "MDI", + "'%s' has been modified.\nDo you want to save your " + "changes?" % self.userFriendlyCurrentFile(), + QMessageBox.Save | QMessageBox.Discard | QMessageBox.Cancel) + + if ret == QMessageBox.Save: + return self.save() + + if ret == QMessageBox.Cancel: + return False + + return True + + def setCurrentFile(self, fileName): + self.curFile = QFileInfo(fileName).canonicalFilePath() + self.isUntitled = False + self.document().setModified(False) + self.setWindowModified(False) + self.setWindowTitle(self.userFriendlyCurrentFile() + "[*]") + + def strippedName(self, fullFileName): + return QFileInfo(fullFileName).fileName() + + +class MainWindow(QMainWindow): + def __init__(self): + super(MainWindow, self).__init__() + + self.mdiArea = QMdiArea() + self.mdiArea.setHorizontalScrollBarPolicy(Qt.ScrollBarAsNeeded) + self.mdiArea.setVerticalScrollBarPolicy(Qt.ScrollBarAsNeeded) + self.setCentralWidget(self.mdiArea) + + self.mdiArea.subWindowActivated.connect(self.updateMenus) + self.windowMapper = QSignalMapper(self) + self.windowMapper.mapped[QWidget].connect(self.setActiveSubWindow) + + self.createActions() + self.createMenus() + self.createToolBars() + self.createStatusBar() + self.updateMenus() + + self.readSettings() + + self.setWindowTitle("MDI") + + def closeEvent(self, event): + self.mdiArea.closeAllSubWindows() + if self.mdiArea.currentSubWindow(): + event.ignore() + else: + self.writeSettings() + event.accept() + + def newFile(self): + child = self.createMdiChild() + child.newFile() + child.show() + + def open(self): + fileName, _ = QFileDialog.getOpenFileName(self) + if fileName: + existing = self.findMdiChild(fileName) + if existing: + self.mdiArea.setActiveSubWindow(existing) + return + + child = self.createMdiChild() + if child.loadFile(fileName): + self.statusBar().showMessage("File loaded", 2000) + child.show() + else: + child.close() + + def save(self): + if self.activeMdiChild() and self.activeMdiChild().save(): + self.statusBar().showMessage("File saved", 2000) + + def saveAs(self): + if self.activeMdiChild() and self.activeMdiChild().saveAs(): + self.statusBar().showMessage("File saved", 2000) + + def cut(self): + if self.activeMdiChild(): + self.activeMdiChild().cut() + + def copy(self): + if self.activeMdiChild(): + self.activeMdiChild().copy() + + def paste(self): + if self.activeMdiChild(): + self.activeMdiChild().paste() + + def about(self): + QMessageBox.about(self, "About MDI", + "The <b>MDI</b> example demonstrates how to write multiple " + "document interface applications using Qt.") + + def updateMenus(self): + hasMdiChild = (self.activeMdiChild() is not None) + self.saveAct.setEnabled(hasMdiChild) + self.saveAsAct.setEnabled(hasMdiChild) + self.pasteAct.setEnabled(hasMdiChild) + self.closeAct.setEnabled(hasMdiChild) + self.closeAllAct.setEnabled(hasMdiChild) + self.tileAct.setEnabled(hasMdiChild) + self.cascadeAct.setEnabled(hasMdiChild) + self.nextAct.setEnabled(hasMdiChild) + self.previousAct.setEnabled(hasMdiChild) + self.separatorAct.setVisible(hasMdiChild) + + hasSelection = (self.activeMdiChild() is not None and + self.activeMdiChild().textCursor().hasSelection()) + self.cutAct.setEnabled(hasSelection) + self.copyAct.setEnabled(hasSelection) + + def updateWindowMenu(self): + self.windowMenu.clear() + self.windowMenu.addAction(self.closeAct) + self.windowMenu.addAction(self.closeAllAct) + self.windowMenu.addSeparator() + self.windowMenu.addAction(self.tileAct) + self.windowMenu.addAction(self.cascadeAct) + self.windowMenu.addSeparator() + self.windowMenu.addAction(self.nextAct) + self.windowMenu.addAction(self.previousAct) + self.windowMenu.addAction(self.separatorAct) + + windows = self.mdiArea.subWindowList() + self.separatorAct.setVisible(len(windows) != 0) + + for i, window in enumerate(windows): + child = window.widget() + + text = "%d %s" % (i + 1, child.userFriendlyCurrentFile()) + if i < 9: + text = '&' + text + + action = self.windowMenu.addAction(text) + action.setCheckable(True) + action.setChecked(child is self.activeMdiChild()) + action.triggered.connect(self.windowMapper.map) + self.windowMapper.setMapping(action, window) + + def createMdiChild(self): + child = MdiChild() + self.mdiArea.addSubWindow(child) + + child.copyAvailable.connect(self.cutAct.setEnabled) + child.copyAvailable.connect(self.copyAct.setEnabled) + + return child + + def createActions(self): + + self.newAct = QAction(QIcon.fromTheme("document-new", QIcon(':/images/new.png')), "&New", self, + shortcut=QKeySequence.New, statusTip="Create a new file", + triggered=self.newFile) + + self.openAct = QAction(QIcon.fromTheme("document-open", QIcon(':/images/open.png')), "&Open...", self, + shortcut=QKeySequence.Open, statusTip="Open an existing file", + triggered=self.open) + + self.saveAct = QAction(QIcon.fromTheme("document-save", QIcon(':/images/save.png')), "&Save", self, + shortcut=QKeySequence.Save, + statusTip="Save the document to disk", triggered=self.save) + + self.saveAsAct = QAction("Save &As...", self, + shortcut=QKeySequence.SaveAs, + statusTip="Save the document under a new name", + triggered=self.saveAs) + + self.exitAct = QAction("E&xit", self, shortcut=QKeySequence.Quit, + statusTip="Exit the application", + triggered=QApplication.instance().closeAllWindows) + + self.cutAct = QAction(QIcon.fromTheme("edit-cut", QIcon(':/images/cut.png')), "Cu&t", self, + shortcut=QKeySequence.Cut, + statusTip="Cut the current selection's contents to the clipboard", + triggered=self.cut) + + self.copyAct = QAction(QIcon.fromTheme("edit-copy", QIcon(':/images/copy.png')), "&Copy", self, + shortcut=QKeySequence.Copy, + statusTip="Copy the current selection's contents to the clipboard", + triggered=self.copy) + + self.pasteAct = QAction(QIcon.fromTheme("edit-paste", QIcon(':/images/paste.png')), "&Paste", self, + shortcut=QKeySequence.Paste, + statusTip="Paste the clipboard's contents into the current selection", + triggered=self.paste) + + self.closeAct = QAction("Cl&ose", self, + statusTip="Close the active window", + triggered=self.mdiArea.closeActiveSubWindow) + + self.closeAllAct = QAction("Close &All", self, + statusTip="Close all the windows", + triggered=self.mdiArea.closeAllSubWindows) + + self.tileAct = QAction("&Tile", self, statusTip="Tile the windows", + triggered=self.mdiArea.tileSubWindows) + + self.cascadeAct = QAction("&Cascade", self, + statusTip="Cascade the windows", + triggered=self.mdiArea.cascadeSubWindows) + + self.nextAct = QAction("Ne&xt", self, shortcut=QKeySequence.NextChild, + statusTip="Move the focus to the next window", + triggered=self.mdiArea.activateNextSubWindow) + + self.previousAct = QAction("Pre&vious", self, + shortcut=QKeySequence.PreviousChild, + statusTip="Move the focus to the previous window", + triggered=self.mdiArea.activatePreviousSubWindow) + + self.separatorAct = QAction(self) + self.separatorAct.setSeparator(True) + + 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=QApplication.instance().aboutQt) + + 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.saveAsAct) + self.fileMenu.addSeparator() + action = self.fileMenu.addAction("Switch layout direction") + action.triggered.connect(self.switchLayoutDirection) + self.fileMenu.addAction(self.exitAct) + + self.editMenu = self.menuBar().addMenu("&Edit") + self.editMenu.addAction(self.cutAct) + self.editMenu.addAction(self.copyAct) + self.editMenu.addAction(self.pasteAct) + + self.windowMenu = self.menuBar().addMenu("&Window") + self.updateWindowMenu() + self.windowMenu.aboutToShow.connect(self.updateWindowMenu) + + self.menuBar().addSeparator() + + self.helpMenu = self.menuBar().addMenu("&Help") + self.helpMenu.addAction(self.aboutAct) + self.helpMenu.addAction(self.aboutQtAct) + + def createToolBars(self): + self.fileToolBar = self.addToolBar("File") + self.fileToolBar.addAction(self.newAct) + self.fileToolBar.addAction(self.openAct) + self.fileToolBar.addAction(self.saveAct) + + self.editToolBar = self.addToolBar("Edit") + self.editToolBar.addAction(self.cutAct) + self.editToolBar.addAction(self.copyAct) + self.editToolBar.addAction(self.pasteAct) + + def createStatusBar(self): + self.statusBar().showMessage("Ready") + + def readSettings(self): + settings = QSettings('Trolltech', 'MDI Example') + pos = settings.value('pos', QPoint(200, 200)) + size = settings.value('size', QSize(400, 400)) + self.move(pos) + self.resize(size) + + def writeSettings(self): + settings = QSettings('Trolltech', 'MDI Example') + settings.setValue('pos', self.pos()) + settings.setValue('size', self.size()) + + def activeMdiChild(self): + activeSubWindow = self.mdiArea.activeSubWindow() + if activeSubWindow: + return activeSubWindow.widget() + return None + + def findMdiChild(self, fileName): + canonicalFilePath = QFileInfo(fileName).canonicalFilePath() + + for window in self.mdiArea.subWindowList(): + if window.widget().currentFile() == canonicalFilePath: + return window + return None + + def switchLayoutDirection(self): + if self.layoutDirection() == Qt.LeftToRight: + QApplication.setLayoutDirection(Qt.RightToLeft) + else: + QApplication.setLayoutDirection(Qt.LeftToRight) + + def setActiveSubWindow(self, window): + if window: + self.mdiArea.setActiveSubWindow(window) + + +if __name__ == '__main__': + + import sys + + app = QApplication(sys.argv) + mainWin = MainWindow() + mainWin.show() + sys.exit(app.exec_()) |