1 files changed, 273 insertions, 0 deletions
diff --git a/examples/widgets/mainwindows/application/application.py b/examples/widgets/mainwindows/application/application.py
new file mode 100755
index 000000000..f1f2ca7c2
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+++ b/examples/widgets/mainwindows/application/application.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."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+from PySide2 import QtCore, QtGui, QtWidgets
+
+import application_rc
+
+class MainWindow(QtWidgets.QMainWindow):
+    def __init__(self):
+        super(MainWindow, self).__init__()
+
+        self.curFile = ''
+
+        self.textEdit = QtWidgets.QTextEdit()
+        self.setCentralWidget(self.textEdit)
+
+        self.createActions()
+        self.createMenus()
+        self.createToolBars()
+        self.createStatusBar()
+
+        self.readSettings()
+
+        self.textEdit.document().contentsChanged.connect(self.documentWasModified)
+
+        self.setCurrentFile('')
+        self.setUnifiedTitleAndToolBarOnMac(True)
+
+    def closeEvent(self, event):
+        if self.maybeSave():
+            self.writeSettings()
+            event.accept()
+        else:
+            event.ignore()
+
+    def newFile(self):
+        if self.maybeSave():
+            self.textEdit.clear()
+            self.setCurrentFile('')
+
+    def open(self):
+        if self.maybeSave():
+            fileName, filtr = QtWidgets.QFileDialog.getOpenFileName(self)
+            if fileName:
+                self.loadFile(fileName)
+
+    def save(self):
+        if self.curFile:
+            return self.saveFile(self.curFile)
+
+        return self.saveAs()
+
+    def saveAs(self):
+        fileName, filtr = QtWidgets.QFileDialog.getSaveFileName(self)
+        if fileName:
+            return self.saveFile(fileName)
+
+        return False
+
+    def about(self):
+        QtWidgets.QMessageBox.about(self, "About Application",
+                "The <b>Application</b> example demonstrates how to write "
+                "modern GUI applications using Qt, with a menu bar, "
+                "toolbars, and a status bar.")
+
+    def documentWasModified(self):
+        self.setWindowModified(self.textEdit.document().isModified())
+
+    def createActions(self):
+        self.newAct = QtWidgets.QAction(QtGui.QIcon(':/images/new.png'), "&New",
+                self, shortcut=QtGui.QKeySequence.New,
+                statusTip="Create a new file", triggered=self.newFile)
+
+        self.openAct = QtWidgets.QAction(QtGui.QIcon(':/images/open.png'),
+                "&Open...", self, shortcut=QtGui.QKeySequence.Open,
+                statusTip="Open an existing file", triggered=self.open)
+
+        self.saveAct = QtWidgets.QAction(QtGui.QIcon(':/images/save.png'),
+                "&Save", self, shortcut=QtGui.QKeySequence.Save,
+                statusTip="Save the document to disk", triggered=self.save)
+
+        self.saveAsAct = QtWidgets.QAction("Save &As...", self,
+                shortcut=QtGui.QKeySequence.SaveAs,
+                statusTip="Save the document under a new name",
+                triggered=self.saveAs)
+
+        self.exitAct = QtWidgets.QAction("E&xit", self, shortcut="Ctrl+Q",
+                statusTip="Exit the application", triggered=self.close)
+
+        self.cutAct = QtWidgets.QAction(QtGui.QIcon(':/images/cut.png'), "Cu&t",
+                self, shortcut=QtGui.QKeySequence.Cut,
+                statusTip="Cut the current selection's contents to the clipboard",
+                triggered=self.textEdit.cut)
+
+        self.copyAct = QtWidgets.QAction(QtGui.QIcon(':/images/copy.png'),
+                "&Copy", self, shortcut=QtGui.QKeySequence.Copy,
+                statusTip="Copy the current selection's contents to the clipboard",
+                triggered=self.textEdit.copy)
+
+        self.pasteAct = QtWidgets.QAction(QtGui.QIcon(':/images/paste.png'),
+                "&Paste", self, shortcut=QtGui.QKeySequence.Paste,
+                statusTip="Paste the clipboard's contents into the current selection",
+                triggered=self.textEdit.paste)
+
+        self.aboutAct = QtWidgets.QAction("&About", self,
+                statusTip="Show the application's About box",
+                triggered=self.about)
+
+        self.aboutQtAct = QtWidgets.QAction("About &Qt", self,
+                statusTip="Show the Qt library's About box",
+                triggered=QtWidgets.qApp.aboutQt)
+
+        self.cutAct.setEnabled(False)
+        self.copyAct.setEnabled(False)
+        self.textEdit.copyAvailable.connect(self.cutAct.setEnabled)
+        self.textEdit.copyAvailable.connect(self.copyAct.setEnabled)
+
+    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();
+        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.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 = QtCore.QSettings("Trolltech", "Application Example")
+        pos = settings.value("pos", QtCore.QPoint(200, 200))
+        size = settings.value("size", QtCore.QSize(400, 400))
+        self.resize(size)
+        self.move(pos)
+
+    def writeSettings(self):
+        settings = QtCore.QSettings("Trolltech", "Application Example")
+        settings.setValue("pos", self.pos())
+        settings.setValue("size", self.size())
+
+    def maybeSave(self):
+        if self.textEdit.document().isModified():
+            ret = QtWidgets.QMessageBox.warning(self, "Application",
+                    "The document has been modified.\nDo you want to save "
+                    "your changes?",
+                    QtWidgets.QMessageBox.Save | QtWidgets.QMessageBox.Discard |
+                    QtWidgets.QMessageBox.Cancel)
+            if ret == QtWidgets.QMessageBox.Save:
+                return self.save()
+            elif ret == QtWidgets.QMessageBox.Cancel:
+                return False
+        return True
+
+    def loadFile(self, fileName):
+        file = QtCore.QFile(fileName)
+        if not file.open(QtCore.QFile.ReadOnly | QtCore.QFile.Text):
+            QtWidgets.QMessageBox.warning(self, "Application",
+                    "Cannot read file %s:\n%s." % (fileName, file.errorString()))
+            return
+
+        inf = QtCore.QTextStream(file)
+        QtWidgets.QApplication.setOverrideCursor(QtCore.Qt.WaitCursor)
+        self.textEdit.setPlainText(inf.readAll())
+        QtWidgets.QApplication.restoreOverrideCursor()
+
+        self.setCurrentFile(fileName)
+        self.statusBar().showMessage("File loaded", 2000)
+
+    def saveFile(self, fileName):
+        file = QtCore.QFile(fileName)
+        if not file.open(QtCore.QFile.WriteOnly | QtCore.QFile.Text):
+            QtWidgets.QMessageBox.warning(self, "Application",
+                    "Cannot write file %s:\n%s." % (fileName, file.errorString()))
+            return False
+
+        outf = QtCore.QTextStream(file)
+        QtWidgets.QApplication.setOverrideCursor(QtCore.Qt.WaitCursor)
+
+        # FIXME: Once file is out of scope, the file is empty, instead of having text.
+        outf << self.textEdit.toPlainText()
+        QtWidgets.QApplication.restoreOverrideCursor()
+
+        self.setCurrentFile(fileName);
+        self.statusBar().showMessage("File saved", 2000)
+        return True
+
+    def setCurrentFile(self, fileName):
+        self.curFile = fileName
+        self.textEdit.document().setModified(False)
+        self.setWindowModified(False)
+
+        if self.curFile:
+            shownName = self.strippedName(self.curFile)
+        else:
+            shownName = 'untitled.txt'
+
+        self.setWindowTitle("%s[*] - Application" % shownName)
+
+    def strippedName(self, fullFileName):
+        return QtCore.QFileInfo(fullFileName).fileName()
+
+
+if __name__ == '__main__':
+
+    import sys
+
+    app = QtWidgets.QApplication(sys.argv)
+    mainWin = MainWindow()
+    mainWin.show()
+    sys.exit(app.exec_())