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+######################################
+#
+# Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+# Contact: Qt Software Information (qt-info@nokia.com)
+#
+# This file is part of the example classes of the Qt Toolkit.
+#
+# $QT_BEGIN_LICENSE:LGPL$
+# Commercial Usage
+# Licensees holding valid Qt Commercial licenses may use self file in
+# accordance with the Qt Commercial License Agreement provided with the
+# Software or, alternatively, in accordance with the terms contained in
+# a written agreement between you and Nokia.
+#
+# GNU Lesser General Public License Usage
+# Alternatively, self file may be used under the terms of the GNU Lesser
+# General Public License version 2.1 as published by the Free Software
+# Foundation and appearing in the file LICENSE.LGPL included in the
+# packaging of self file. Please review the following information to
+# ensure the GNU Lesser General Public License version 2.1 requirements
+# will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+#
+# In addition, as a special exception, Nokia gives you certain
+# additional rights. These rights are described in the Nokia Qt LGPL
+# Exception version 1.0, included in the file LGPL_EXCEPTION.txt in self
+# package.
+#
+# GNU General Public License Usage
+# Alternatively, self file may be used under the terms of the GNU
+# General Public License version 3.0 as published by the Free Software
+# Foundation and appearing in the file LICENSE.GPL included in the
+# packaging of self file. Please review the following information to
+# ensure the GNU General Public License version 3.0 requirements will be
+# met: http://www.gnu.org/copyleft/gpl.html.
+#
+# If you are unsure which license is appropriate for your use, please
+# contact the sales department at qt-sales@nokia.com.
+# $QT_END_LICENSE$
+#
+######################################
+
+//! [0]
+from PySide.QtGui import *
+//! [0]
+
+//! [1]
+def __init__(self):
+ QMainWindow.__init__(self)
+//! [1] //! [2]
+ textEdit = QPlainTextEdit()
+ setCentralWidget(textEdit)
+
+ createActions()
+ createMenus()
+ createToolBars()
+ createStatusBar()
+
+ readSettings()
+
+ connect(textEdit.document(), SIGNAL("contentsChanged()"),
+ self, SLOT("documentWasModified()"))
+
+ setCurrentFile("")
+ setUnifiedTitleAndToolBarOnMac(True)
+
+//! [2]
+
+//! [3]
+def closeEvent(self, event):
+//! [3] //! [4]
+ if maybeSave():
+ writeSettings()
+ event.accept()
+ else:
+ event.ignore()
+//! [4]
+
+//! [5]
+def File(self):
+//! [5] //! [6]
+ if maybeSave():
+ textEdit.clear()
+ setCurrentFile("")
+//! [6]
+
+//! [7]
+def open(self):
+//! [7] //! [8]
+ if maybeSave():
+ fileName = QFileDialog.getOpenFileName(self)
+ if !fileName.isEmpty():
+ loadFile(fileName)
+//! [8]
+
+//! [9]
+def save(self):
+//! [9] //! [10]
+ if curFile.isEmpty():
+ return saveAs()
+ else:
+ return saveFile(curFile)
+//! [10]
+
+//! [11]
+def saveAs(self):
+//! [11] //! [12]
+ fileName = QFileDialog.getSaveFileName(self)
+ if fileName.isEmpty():
+ return False
+
+ return saveFile(fileName)
+//! [12]
+
+//! [13]
+def about(self):
+//! [13] //! [14]
+ QMessageBox.about(self, tr("About Application"),
+ tr("The <b>Application</b> example demonstrates how to "
+ "write modern GUI applications using Qt, with a menu bar, "
+ "toolbars, and a status bar."))
+
+//! [14]
+
+//! [15]
+def documentWasModified(self):
+//! [15] //! [16]
+ setWindowModified(textEdit.document().isModified())
+//! [16]
+
+//! [17]
+def MainWindow.createActions(self):
+//! [17] //! [18]
+ Act = QAction(QIcon(":/images/new.png"), tr("&New"), self)
+ Act.setShortcuts(QKeySequence.New)
+ Act.setStatusTip(tr("Create a new file"))
+ connect(Act, SIGNAL("triggered()"), self, SLOT("newFile()"))
+
+//! [19]
+ openAct = QAction(QIcon(":/images/open.png"), tr("&Open..."), self)
+ openAct.setShortcuts(QKeySequence.Open)
+ openAct.setStatusTip(tr("Open an existing file"))
+ connect(openAct, SIGNAL("triggered()"), self, SLOT("open()"))
+//! [18] //! [19]
+
+ saveAct = QAction(QIcon(":/images/save.png"), tr("&Save"), self)
+ saveAct.setShortcuts(QKeySequence.Save)
+ saveAct.setStatusTip(tr("Save the document to disk"))
+ connect(saveAct, SIGNAL("triggered()"), self, SLOT("save()"))
+
+ saveAsAct = QAction(tr("Save &As..."), self)
+ saveAsAct.setShortcuts(QKeySequence.SaveAs)
+ saveAsAct.setStatusTip(tr("Save the document under a name"))
+ connect(saveAsAct, SIGNAL("triggered()"), self, SLOT("saveAs()"))
+
+//! [20]
+ exitAct = QAction(tr("E&xit"), self)
+ exitAct.setShortcut(tr("Ctrl+Q"))
+//! [20]
+ exitAct.setStatusTip(tr("Exit the application"))
+ connect(exitAct, SIGNAL("triggered()"), self, SLOT("close()"))
+
+//! [21]
+ cutAct = QAction(QIcon(":/images/cut.png"), tr("Cu&t"), self)
+//! [21]
+ cutAct.setShortcuts(QKeySequence.Cut)
+ cutAct.setStatusTip(tr("Cut the current selection's contents to the "
+ "clipboard"))
+ connect(cutAct, SIGNAL("triggered()"), textEdit, SLOT("cut()"))
+
+ copyAct = QAction(QIcon(":/images/copy.png"), tr("&Copy"), self)
+ copyAct.setShortcuts(QKeySequence.Copy)
+ copyAct.setStatusTip(tr("Copy the current selection's contents to the "
+ "clipboard"))
+ connect(copyAct, SIGNAL("triggered()"), textEdit, SLOT("copy()"))
+
+ pasteAct = QAction(QIcon(":/images/paste.png"), tr("&Paste"), self)
+ pasteAct.setShortcuts(QKeySequence.Paste)
+ pasteAct.setStatusTip(tr("Paste the clipboard's contents into the current "
+ "selection"))
+ connect(pasteAct, SIGNAL("triggered()"), textEdit, SLOT("paste()"))
+
+ aboutAct = QAction(tr("&About"), self)
+ aboutAct.setStatusTip(tr("Show the application's About box"))
+ connect(aboutAct, SIGNAL("triggered()"), self, SLOT("about()"))
+
+//! [22]
+ aboutQtAct = QAction(tr("About &Qt"), self)
+ aboutQtAct.setStatusTip(tr("Show the Qt library's About box"))
+ connect(aboutQtAct, SIGNAL("triggered()"), qApp, SLOT("aboutQt()"))
+//! [22]
+
+//! [23]
+ cutAct.setEnabled(False)
+//! [23] //! [24]
+ copyAct.setEnabled(False)
+ connect(textEdit, SIGNAL("copyAvailable(bool)"),
+ cutAct, SLOT("setEnabled(bool)"))
+ connect(textEdit, SIGNAL("copyAvailable(bool)"),
+ copyAct, SLOT("setEnabled(bool)"))
+}
+//! [24]
+
+//! [25] //! [26]
+def createMenus(self):
+//! [25] //! [27]
+ fileMenu = menuBar().addMenu(tr("&File"))
+ fileMenu.addAction(Act)
+//! [28]
+ fileMenu.addAction(openAct)
+//! [28]
+ fileMenu.addAction(saveAct)
+//! [26]
+ fileMenu.addAction(saveAsAct)
+ fileMenu.addSeparator()
+ fileMenu.addAction(exitAct)
+
+ editMenu = menuBar().addMenu(tr("&Edit"))
+ editMenu.addAction(cutAct)
+ editMenu.addAction(copyAct)
+ editMenu.addAction(pasteAct)
+
+ menuBar().addSeparator()
+
+ helpMenu = menuBar().addMenu(tr("&Help"))
+ helpMenu.addAction(aboutAct)
+ helpMenu.addAction(aboutQtAct)
+
+//! [27]
+
+//! [29] //! [30]
+def createToolBars(self):
+ fileToolBar = addToolBar(tr("File"))
+ fileToolBar.addAction(Act)
+//! [29] //! [31]
+ fileToolBar.addAction(openAct)
+//! [31]
+ fileToolBar.addAction(saveAct)
+
+ editToolBar = addToolBar(tr("Edit"))
+ editToolBar.addAction(cutAct)
+ editToolBar.addAction(copyAct)
+ editToolBar.addAction(pasteAct)
+//! [30]
+
+//! [32]
+def createStatusBar(self):
+//! [32] //! [33]
+ statusBar().showMessage(tr("Ready"))
+
+//! [33]
+
+//! [34] //! [35]
+def readSettings(self):
+//! [34] //! [36]
+ settings("Trolltech", "Application Example")
+ pos = settings.value("pos", QPoint(200, 200)).toPoint()
+ size = settings.value("size", QSize(400, 400)).toSize()
+ resize(size)
+ move(pos)
+
+//! [35] //! [36]
+
+//! [37] //! [38]
+def writeSettings(self):
+//! [37] //! [39]
+ settings = QSettings("Trolltech", "Application Example")
+ settings.setValue("pos", pos())
+ settings.setValue("size", size())
+
+//! [38] //! [39]
+
+//! [40]
+def maybeSave(self):
+//! [40] //! [41]
+ if textEdit.document()->isModified():
+ ret = QMessageBox.warning(self, tr("Application"),
+ tr("The document has been modified.\n"
+ "Do you want to save your changes?"),
+ QMessageBox.Save | QMessageBox.Discard | QMessageBox.Cancel)
+ if ret == QMessageBox.Save:
+ return save()
+ elif ret == QMessageBox.Cancel:
+ return False
+ return True
+//! [41]
+
+//! [42]
+def loadFile(self, fileName):
+//! [42] //! [43]
+ file = QFile(fileName)
+ if !file.open(QFile.ReadOnly | QFile.Text):
+ QMessageBox.warning(self, tr("Application"),
+ tr("Cannot read file %1:\n%2.")
+ .arg(fileName)
+ .arg(file.errorString()))
+ return
+
+ in = QTextStream(file)
+ QApplication.setOverrideCursor(Qt::WaitCursor)
+ textEdit.setPlainText(in.readAll())
+ QApplication.restoreOverrideCursor()
+
+ setCurrentFile(fileName)
+ statusBar().showMessage(tr("File loaded"), 2000)
+
+//! [43]
+
+//! [44]
+def saveFile(self, fileName):
+//! [44] //! [45]
+ file = QFile(fileName)
+ if !file.open(QFile.WriteOnly | QFile::Text):
+ QMessageBox.warning(self, tr("Application"),
+ tr("Cannot write file %1:\n%2.")
+ .arg(fileName)
+ .arg(file.errorString()))
+ return False
+
+ out = QTextStream(file)
+ QApplication.setOverrideCursor(Qt.WaitCursor)
+ out << textEdit.toPlainText()
+ QApplication.restoreOverrideCursor()
+
+ setCurrentFile(fileName)
+ statusBar().showMessage(tr("File saved"), 2000)
+ return True
+
+//! [45]
+
+//! [46]
+def setCurrentFile(fileName):
+//! [46] //! [47]
+ curFile = fileName
+ textEdit.document().setModified(False)
+ setWindowModified(False)
+
+ if curFile.isEmpty():
+ shownName = "untitled.txt"
+ else:
+ shownName = strippedName(curFile)
+
+ setWindowTitle(tr("%1[*] - %2").arg(shownName).arg(tr("Application")))
+
+//! [47]
+
+//! [48]
+def strippedName(self, fullFileName):
+//! [48] //! [49]
+ return QFileInfo(fullFileName).fileName()
+//! [49]
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