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Diffstat (limited to 'examples/widgets/tools/codecs/mainwindow.cpp')
| -rw-r--r-- | examples/widgets/tools/codecs/mainwindow.cpp | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/examples/widgets/tools/codecs/mainwindow.cpp b/examples/widgets/tools/codecs/mainwindow.cpp deleted file mode 100644 index 2379eaf5cc..0000000000 --- a/examples/widgets/tools/codecs/mainwindow.cpp +++ /dev/null @@ -1,225 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "mainwindow.h" -#include "encodingdialog.h" -#include "previewform.h" - -#include <QAction> -#include <QApplication> -#include <QFileDialog> -#include <QMenuBar> -#include <QMessageBox> -#include <QPlainTextEdit> -#include <QRegularExpression> -#include <QScreen> -#include <QTextCodec> -#include <QTextStream> - -MainWindow::MainWindow() -{ - textEdit = new QPlainTextEdit; - textEdit->setLineWrapMode(QPlainTextEdit::NoWrap); - setCentralWidget(textEdit); - - findCodecs(); - - previewForm = new PreviewForm(this); - previewForm->setCodecList(codecs); - - createMenus(); - - setWindowTitle(tr("Codecs")); - - const QRect screenGeometry = screen()->geometry(); - resize(screenGeometry.width() / 2, screenGeometry.height() * 2 / 3); -} - -void MainWindow::open() -{ - const QString fileName = QFileDialog::getOpenFileName(this); - if (fileName.isEmpty()) - return; - QFile file(fileName); - if (!file.open(QFile::ReadOnly)) { - QMessageBox::warning(this, tr("Codecs"), - tr("Cannot read file %1:\n%2") - .arg(QDir::toNativeSeparators(fileName), - file.errorString())); - return; - } - - const QByteArray data = file.readAll(); - - previewForm->setWindowTitle(tr("Choose Encoding for %1").arg(QFileInfo(fileName).fileName())); - previewForm->setEncodedData(data); - if (previewForm->exec()) - textEdit->setPlainText(previewForm->decodedString()); -} - -void MainWindow::save() -{ - const QAction *action = qobject_cast<const QAction *>(sender()); - const QByteArray codecName = action->data().toByteArray(); - const QString title = tr("Save As (%1)").arg(QLatin1String(codecName)); - - QString fileName = QFileDialog::getSaveFileName(this, title); - if (fileName.isEmpty()) - return; - QFile file(fileName); - if (!file.open(QFile::WriteOnly | QFile::Text)) { - QMessageBox::warning(this, tr("Codecs"), - tr("Cannot write file %1:\n%2") - .arg(QDir::toNativeSeparators(fileName), - file.errorString())); - return; - } - - QTextCodec *codec = QTextCodec::codecForName(codecName.constData()); - QByteArray text = codec->fromUnicode(textEdit->toPlainText()); - file.write(text); -} - -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() -{ - const QString currentText = textEdit->toPlainText(); - for (QAction *action : qAsConst(saveAsActs)) { - const QByteArray codecName = action->data().toByteArray(); - const QTextCodec *codec = QTextCodec::codecForName(codecName); - action->setVisible(codec && codec->canEncode(currentText)); - } -} - -void MainWindow::findCodecs() -{ - QMap<QString, QTextCodec *> codecMap; - QRegularExpression iso8859RegExp("^ISO[- ]8859-([0-9]+).*$"); - QRegularExpressionMatch match; - - const QList<int> mibs = QTextCodec::availableMibs(); - for (int mib : mibs) { - QTextCodec *codec = QTextCodec::codecForMib(mib); - - QString sortKey = codec->name().toUpper(); - char rank; - - if (sortKey.startsWith(QLatin1String("UTF-8"))) { - rank = 1; - } else if (sortKey.startsWith(QLatin1String("UTF-16"))) { - rank = 2; - } else if ((match = iso8859RegExp.match(sortKey)).hasMatch()) { - if (match.capturedView(1).size() == 1) - rank = 3; - else - rank = 4; - } else { - rank = 5; - } - sortKey.prepend(QLatin1Char('0' + rank)); - - codecMap.insert(sortKey, codec); - } - for (const auto &codec : qAsConst(codecMap)) - codecs += codec; -} - -void MainWindow::createMenus() -{ - QMenu *fileMenu = menuBar()->addMenu(tr("&File")); - QAction *openAct = - fileMenu->addAction(tr("&Open..."), this, &MainWindow::open); - openAct->setShortcuts(QKeySequence::Open); - - QMenu *saveAsMenu = fileMenu->addMenu(tr("&Save As")); - connect(saveAsMenu, &QMenu::aboutToShow, - this, &MainWindow::aboutToShowSaveAsMenu); - for (const QTextCodec *codec : qAsConst(codecs)) { - const QByteArray name = codec->name(); - QAction *action = saveAsMenu->addAction(tr("%1...").arg(QLatin1String(name))); - action->setData(QVariant(name)); - connect(action, &QAction::triggered, this, &MainWindow::save); - saveAsActs.append(action); - } - - fileMenu->addSeparator(); - QAction *exitAct = fileMenu->addAction(tr("E&xit"), this, &QWidget::close); - exitAct->setShortcuts(QKeySequence::Quit); - - auto toolMenu = menuBar()->addMenu(tr("&Tools")); - auto encodingAction = toolMenu->addAction(tr("Encodings"), this, &MainWindow::encodingDialog); - encodingAction->setShortcut(Qt::CTRL + Qt::Key_E); - encodingAction->setToolTip(tr("Shows a dialog allowing to convert to common encoding in programming languages.")); - - - menuBar()->addSeparator(); - - QMenu *helpMenu = menuBar()->addMenu(tr("&Help")); - helpMenu->addAction(tr("&About"), this, &MainWindow::about); - helpMenu->addAction(tr("About &Qt"), qApp, &QApplication::aboutQt); -} - -void MainWindow::encodingDialog() -{ - if (!m_encodingDialog) { - m_encodingDialog = new EncodingDialog(this); - const QRect screenGeometry = screen()->geometry(); - m_encodingDialog->setMinimumWidth(screenGeometry.width() / 4); - } - m_encodingDialog->show(); - m_encodingDialog->raise(); - -} |