1 files changed, 251 insertions, 0 deletions
diff --git a/examples/corelib/tools/codecs/codecs.py b/examples/corelib/tools/codecs/codecs.py
new file mode 100755
index 000000000..15f7d9563
--- /dev/null
+++ b/examples/corelib/tools/codecs/codecs.py
@@ -0,0 +1,251 @@
+#!/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/tools/codecs example from Qt v5.x"""
+
+from PySide2 import QtCore, QtGui, QtWidgets
+
+
+def codec_name(codec):
+    try:
+        # Python v3.
+        name = str(codec.name(), encoding='ascii')
+    except TypeError:
+        # Python v2.
+        name = str(codec.name())
+
+    return name
+
+
+class MainWindow(QtWidgets.QMainWindow):
+    def __init__(self):
+        super(MainWindow, self).__init__()
+
+        self.textEdit = QtWidgets.QTextEdit()
+        self.textEdit.setLineWrapMode(QtWidgets.QTextEdit.NoWrap)
+        self.setCentralWidget(self.textEdit)
+
+        self.codecs = []
+        self.findCodecs()
+
+        self.previewForm = PreviewForm(self)
+        self.previewForm.setCodecList(self.codecs)
+
+        self.saveAsActs = []
+        self.createActions()
+        self.createMenus()
+
+        self.setWindowTitle("Codecs")
+        self.resize(500, 400)
+
+    def open(self):
+        fileName, _ = QtWidgets.QFileDialog.getOpenFileName(self)
+        if fileName:
+            inFile = QtCore.QFile(fileName)
+            if not inFile.open(QtCore.QFile.ReadOnly):
+                QtWidgets.QMessageBox.warning(self, "Codecs",
+                        "Cannot read file %s:\n%s" % (fileName, inFile.errorString()))
+                return
+
+            data = inFile.readAll()
+
+            self.previewForm.setEncodedData(data)
+            if self.previewForm.exec_():
+                self.textEdit.setPlainText(self.previewForm.decodedString())
+
+    def save(self):
+        fileName = QtWidgets.QFileDialog.getSaveFileName(self)
+        if fileName:
+            outFile = QtCore.QFile(fileName)
+            if not outFile.open(QtCore.QFile.WriteOnly|QtCore.QFile.Text):
+                QtWidgets.QMessageBox.warning(self, "Codecs",
+                        "Cannot write file %s:\n%s" % (fileName, outFile.errorString()))
+                return
+
+            action = self.sender()
+            codecName = action.data()
+
+            out = QtCore.QTextStream(outFile)
+            out.setCodec(codecName)
+            out << self.textEdit.toPlainText()
+
+    def about(self):
+        QtWidgets.QMessageBox.about(self, "About Codecs",
+                "The <b>Codecs</b> example demonstrates how to read and "
+                "write files using various encodings.")
+
+    def aboutToShowSaveAsMenu(self):
+        currentText = self.textEdit.toPlainText()
+
+        for action in self.saveAsActs:
+            codecName = str(action.data())
+            codec = QtCore.QTextCodec.codecForName(codecName)
+            action.setVisible(codec and codec.canEncode(currentText))
+
+    def findCodecs(self):
+        codecMap = []
+        iso8859RegExp = QtCore.QRegExp('ISO[- ]8859-([0-9]+).*')
+
+        for mib in QtCore.QTextCodec.availableMibs():
+            codec = QtCore.QTextCodec.codecForMib(mib)
+            sortKey = codec_name(codec).upper()
+            rank = 0
+
+            if sortKey.startswith('UTF-8'):
+                rank = 1
+            elif sortKey.startswith('UTF-16'):
+                rank = 2
+            elif iso8859RegExp.exactMatch(sortKey):
+                if len(iso8859RegExp.cap(1)) == 1:
+                    rank = 3
+                else:
+                    rank = 4
+            else:
+                rank = 5
+
+            codecMap.append((str(rank) + sortKey, codec))
+
+        codecMap.sort()
+        self.codecs = [item[-1] for item in codecMap]
+
+    def createActions(self):
+        self.openAct = QtWidgets.QAction("&Open...", self, shortcut="Ctrl+O",
+                triggered=self.open)
+
+        for codec in self.codecs:
+            name = codec_name(codec)
+
+            action = QtWidgets.QAction(name + '...', self, triggered=self.save)
+            action.setData(name)
+            self.saveAsActs.append(action)
+
+        self.exitAct = QtWidgets.QAction("E&xit", self, shortcut="Ctrl+Q",
+                triggered=self.close)
+
+        self.aboutAct = QtWidgets.QAction("&About", self, triggered=self.about)
+
+        self.aboutQtAct = QtWidgets.QAction("About &Qt", self,
+                triggered=QtWidgets.qApp.aboutQt)
+
+    def createMenus(self):
+        self.saveAsMenu = QtWidgets.QMenu("&Save As", self)
+        for action in self.saveAsActs:
+            self.saveAsMenu.addAction(action)
+
+        self.saveAsMenu.aboutToShow.connect(self.aboutToShowSaveAsMenu)
+
+        self.fileMenu = QtWidgets.QMenu("&File", self)
+        self.fileMenu.addAction(self.openAct)
+        self.fileMenu.addMenu(self.saveAsMenu)
+        self.fileMenu.addSeparator()
+        self.fileMenu.addAction(self.exitAct)
+
+        self.helpMenu = QtWidgets.QMenu("&Help", self)
+        self.helpMenu.addAction(self.aboutAct)
+        self.helpMenu.addAction(self.aboutQtAct)
+
+        self.menuBar().addMenu(self.fileMenu)
+        self.menuBar().addSeparator()
+        self.menuBar().addMenu(self.helpMenu)
+
+
+class PreviewForm(QtWidgets.QDialog):
+    def __init__(self, parent):
+        super(PreviewForm, self).__init__(parent)
+
+        self.encodingComboBox = QtWidgets.QComboBox()
+        encodingLabel = QtWidgets.QLabel("&Encoding:")
+        encodingLabel.setBuddy(self.encodingComboBox)
+
+        self.textEdit = QtWidgets.QTextEdit()
+        self.textEdit.setLineWrapMode(QtWidgets.QTextEdit.NoWrap)
+        self.textEdit.setReadOnly(True)
+
+        buttonBox = QtWidgets.QDialogButtonBox(QtWidgets.QDialogButtonBox.Ok | QtWidgets.QDialogButtonBox.Cancel)
+
+        self.encodingComboBox.activated.connect(self.updateTextEdit)
+        buttonBox.accepted.connect(self.accept)
+        buttonBox.rejected.connect(self.reject)
+
+        mainLayout = QtWidgets.QGridLayout()
+        mainLayout.addWidget(encodingLabel, 0, 0)
+        mainLayout.addWidget(self.encodingComboBox, 0, 1)
+        mainLayout.addWidget(self.textEdit, 1, 0, 1, 2)
+        mainLayout.addWidget(buttonBox, 2, 0, 1, 2)
+        self.setLayout(mainLayout)
+
+        self.setWindowTitle("Choose Encoding")
+        self.resize(400, 300)
+
+    def setCodecList(self, codecs):
+        self.encodingComboBox.clear()
+        for codec in codecs:
+            self.encodingComboBox.addItem(codec_name(codec), codec.mibEnum())
+
+    def setEncodedData(self, data):
+        self.encodedData = data
+        self.updateTextEdit()
+
+    def decodedString(self):
+        return self.decodedStr
+
+    def updateTextEdit(self):
+        mib = self.encodingComboBox.itemData(self.encodingComboBox.currentIndex())
+        codec = QtCore.QTextCodec.codecForMib(mib)
+
+        data = QtCore.QTextStream(self.encodedData)
+        data.setAutoDetectUnicode(False)
+        data.setCodec(codec)
+
+        self.decodedStr = data.readAll()
+        self.textEdit.setPlainText(self.decodedStr)
+
+
+if __name__ == '__main__':
+
+    import sys
+
+    app = QtWidgets.QApplication(sys.argv)
+    mainWin = MainWindow()
+    mainWin.show()
+    sys.exit(app.exec_())