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authorFriedemann Kleint <Friedemann.Kleint@qt.io>2018-01-05 15:58:35 +0100
committerFriedemann Kleint <Friedemann.Kleint@qt.io>2018-01-12 12:28:10 +0000
commit9f2a9aba3aff73e31ea15eb4a7a04b0e50f4ee4e (patch)
tree92dcb0c4f64df8a8375af2e1a9bb1170068c36b2 /examples/widgets/mainwindows/mdi/mdi.py
parent26c046e521c38bbfc3a263782a3bb74a7c1bf937 (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-xexamples/widgets/mainwindows/mdi/mdi.py448
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diff --git a/examples/widgets/mainwindows/mdi/mdi.py b/examples/widgets/mainwindows/mdi/mdi.py
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+#!/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_())