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Diffstat (limited to 'examples/corelib/tools/codecs/codecs.py')
| -rw-r--r-- | examples/corelib/tools/codecs/codecs.py | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/examples/corelib/tools/codecs/codecs.py b/examples/corelib/tools/codecs/codecs.py deleted file mode 100644 index a3c063c04..000000000 --- a/examples/corelib/tools/codecs/codecs.py +++ /dev/null @@ -1,250 +0,0 @@ - -############################################################################# -## -## 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 Qt for Python 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, 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=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_()) |