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Diffstat (limited to 'examples/tools/codecs/mainwindow.cpp')
| -rw-r--r-- | examples/tools/codecs/mainwindow.cpp | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/examples/tools/codecs/mainwindow.cpp b/examples/tools/codecs/mainwindow.cpp deleted file mode 100644 index 4009e307206..00000000000 --- a/examples/tools/codecs/mainwindow.cpp +++ /dev/null @@ -1,202 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the 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 Digia Plc and its Subsidiary(-ies) 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QtWidgets> - -#include "mainwindow.h" -#include "previewform.h" - -MainWindow::MainWindow() -{ - textEdit = new QTextEdit; - textEdit->setLineWrapMode(QTextEdit::NoWrap); - setCentralWidget(textEdit); - - findCodecs(); - - previewForm = new PreviewForm(this); - previewForm->setCodecList(codecs); - - createActions(); - createMenus(); - - setWindowTitle(tr("Codecs")); - resize(500, 400); -} - -void MainWindow::open() -{ - QString fileName = QFileDialog::getOpenFileName(this); - if (!fileName.isEmpty()) { - QFile file(fileName); - if (!file.open(QFile::ReadOnly)) { - QMessageBox::warning(this, tr("Codecs"), - tr("Cannot read file %1:\n%2") - .arg(fileName) - .arg(file.errorString())); - return; - } - - QByteArray data = file.readAll(); - - previewForm->setEncodedData(data); - if (previewForm->exec()) - textEdit->setPlainText(previewForm->decodedString()); - } -} - -void MainWindow::save() -{ - QString fileName = QFileDialog::getSaveFileName(this); - if (!fileName.isEmpty()) { - QFile file(fileName); - if (!file.open(QFile::WriteOnly | QFile::Text)) { - QMessageBox::warning(this, tr("Codecs"), - tr("Cannot write file %1:\n%2") - .arg(fileName) - .arg(file.errorString())); - return; - } - - QAction *action = qobject_cast<QAction *>(sender()); - QByteArray codecName = action->data().toByteArray(); - - QTextStream out(&file); - out.setCodec(codecName.constData()); - out << textEdit->toPlainText(); - } -} - -void MainWindow::about() -{ - QMessageBox::about(this, tr("About Codecs"), - tr("The <b>Codecs</b> example demonstrates how to read and write " - "files using various encodings.")); -} - -void MainWindow::aboutToShowSaveAsMenu() -{ - QString currentText = textEdit->toPlainText(); - - foreach (QAction *action, saveAsActs) { - QByteArray codecName = action->data().toByteArray(); - QTextCodec *codec = QTextCodec::codecForName(codecName); - action->setVisible(codec && codec->canEncode(currentText)); - } -} - -void MainWindow::findCodecs() -{ - QMap<QString, QTextCodec *> codecMap; - QRegExp iso8859RegExp("ISO[- ]8859-([0-9]+).*"); - - foreach (int mib, QTextCodec::availableMibs()) { - QTextCodec *codec = QTextCodec::codecForMib(mib); - - QString sortKey = codec->name().toUpper(); - int rank; - - if (sortKey.startsWith("UTF-8")) { - rank = 1; - } else if (sortKey.startsWith("UTF-16")) { - rank = 2; - } else if (iso8859RegExp.exactMatch(sortKey)) { - if (iso8859RegExp.cap(1).size() == 1) - rank = 3; - else - rank = 4; - } else { - rank = 5; - } - sortKey.prepend(QChar('0' + rank)); - - codecMap.insert(sortKey, codec); - } - codecs = codecMap.values(); -} - -void MainWindow::createActions() -{ - openAct = new QAction(tr("&Open..."), this); - openAct->setShortcuts(QKeySequence::Open); - connect(openAct, SIGNAL(triggered()), this, SLOT(open())); - - foreach (QTextCodec *codec, codecs) { - QString text = tr("%1...").arg(QString(codec->name())); - - QAction *action = new QAction(text, this); - action->setData(codec->name()); - connect(action, SIGNAL(triggered()), this, SLOT(save())); - saveAsActs.append(action); - } - - exitAct = new QAction(tr("E&xit"), this); - exitAct->setShortcuts(QKeySequence::Quit); - connect(exitAct, SIGNAL(triggered()), this, SLOT(close())); - - aboutAct = new QAction(tr("&About"), this); - connect(aboutAct, SIGNAL(triggered()), this, SLOT(about())); - - aboutQtAct = new QAction(tr("About &Qt"), this); - connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt())); -} - -void MainWindow::createMenus() -{ - saveAsMenu = new QMenu(tr("&Save As"), this); - foreach (QAction *action, saveAsActs) - saveAsMenu->addAction(action); - connect(saveAsMenu, SIGNAL(aboutToShow()), - this, SLOT(aboutToShowSaveAsMenu())); - - fileMenu = new QMenu(tr("&File"), this); - fileMenu->addAction(openAct); - fileMenu->addMenu(saveAsMenu); - fileMenu->addSeparator(); - fileMenu->addAction(exitAct); - - helpMenu = new QMenu(tr("&Help"), this); - helpMenu->addAction(aboutAct); - helpMenu->addAction(aboutQtAct); - - menuBar()->addMenu(fileMenu); - menuBar()->addSeparator(); - menuBar()->addMenu(helpMenu); -} |