1f2c23a7ca
Cleanup the Widget examples - replace foreach with range-based for loop in subdirectory tools, touch and tutorials Change-Id: I008d23b5993a18a3332fe9f5e5bca68cb0561066 Reviewed-by: Luca Beldi <v.ronin@yahoo.it> Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com> Reviewed-by: Paul Wicking <paul.wicking@qt.io>
190 lines
6.6 KiB
C++
190 lines
6.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtWidgets>
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#include "languagechooser.h"
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#include "mainwindow.h"
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#if 0 // Used to be included in Qt4 for Q_WS_MAC
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QT_BEGIN_NAMESPACE
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extern void qt_mac_set_menubar_merge(bool merge);
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QT_END_NAMESPACE
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#endif
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LanguageChooser::LanguageChooser(const QString& defaultLang, QWidget *parent)
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: QDialog(parent, Qt::WindowStaysOnTopHint)
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{
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groupBox = new QGroupBox("Languages");
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QGridLayout *groupBoxLayout = new QGridLayout;
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QStringList qmFiles = findQmFiles();
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for (int i = 0; i < qmFiles.size(); ++i) {
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QCheckBox *checkBox = new QCheckBox(languageName(qmFiles[i]));
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qmFileForCheckBoxMap.insert(checkBox, qmFiles[i]);
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connect(checkBox,
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QOverload<bool>::of(&QCheckBox::toggled),
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this,
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&LanguageChooser::checkBoxToggled);
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if (languageMatch(defaultLang, qmFiles[i]))
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checkBox->setCheckState(Qt::Checked);
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groupBoxLayout->addWidget(checkBox, i / 2, i % 2);
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}
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groupBox->setLayout(groupBoxLayout);
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buttonBox = new QDialogButtonBox;
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showAllButton = buttonBox->addButton("Show All",
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QDialogButtonBox::ActionRole);
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hideAllButton = buttonBox->addButton("Hide All",
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QDialogButtonBox::ActionRole);
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connect(showAllButton, &QAbstractButton::clicked, this, &LanguageChooser::showAll);
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connect(hideAllButton, &QAbstractButton::clicked, this, &LanguageChooser::hideAll);
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QVBoxLayout *mainLayout = new QVBoxLayout;
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mainLayout->addWidget(groupBox);
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mainLayout->addWidget(buttonBox);
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setLayout(mainLayout);
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#if 0 // Used to be included in Qt4 for Q_WS_MAC
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qt_mac_set_menubar_merge(false);
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#endif
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setWindowTitle("I18N");
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}
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bool LanguageChooser::languageMatch(const QString& lang, const QString& qmFile)
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{
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//qmFile: i18n_xx.qm
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const QString prefix = "i18n_";
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const int langTokenLength = 2; /*FIXME: is checking two chars enough?*/
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return qmFile.midRef(qmFile.indexOf(prefix) + prefix.length(), langTokenLength) == lang.leftRef(langTokenLength);
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}
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bool LanguageChooser::eventFilter(QObject *object, QEvent *event)
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{
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if (event->type() == QEvent::Close) {
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MainWindow *window = qobject_cast<MainWindow *>(object);
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if (window) {
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QCheckBox *checkBox = mainWindowForCheckBoxMap.key(window);
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if (checkBox)
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checkBox->setChecked(false);
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}
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}
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return QWidget::eventFilter(object, event);
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}
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void LanguageChooser::closeEvent(QCloseEvent * /* event */)
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{
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qApp->quit();
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}
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void LanguageChooser::checkBoxToggled()
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{
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QCheckBox *checkBox = qobject_cast<QCheckBox *>(sender());
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MainWindow *window = mainWindowForCheckBoxMap[checkBox];
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if (!window) {
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QTranslator translator;
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translator.load(qmFileForCheckBoxMap[checkBox]);
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qApp->installTranslator(&translator);
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window = new MainWindow;
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window->setPalette(colorForLanguage(checkBox->text()));
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window->installEventFilter(this);
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mainWindowForCheckBoxMap.insert(checkBox, window);
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}
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window->setVisible(checkBox->isChecked());
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}
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void LanguageChooser::showAll()
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{
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for (auto it = qmFileForCheckBoxMap.keyBegin(); it != qmFileForCheckBoxMap.keyEnd(); ++it)
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(*it)->setChecked(true);
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}
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void LanguageChooser::hideAll()
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{
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for (auto it = qmFileForCheckBoxMap.keyBegin(); it != qmFileForCheckBoxMap.keyEnd(); ++it)
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(*it)->setChecked(false);
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}
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QStringList LanguageChooser::findQmFiles()
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{
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QDir dir(":/translations");
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QStringList fileNames = dir.entryList(QStringList("*.qm"), QDir::Files,
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QDir::Name);
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QMutableStringListIterator i(fileNames);
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while (i.hasNext()) {
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i.next();
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i.setValue(dir.filePath(i.value()));
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}
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return fileNames;
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}
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QString LanguageChooser::languageName(const QString &qmFile)
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{
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QTranslator translator;
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translator.load(qmFile);
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return translator.translate("MainWindow", "English");
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}
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QColor LanguageChooser::colorForLanguage(const QString &language)
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{
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uint hashValue = qHash(language);
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int red = 156 + (hashValue & 0x3F);
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int green = 156 + ((hashValue >> 6) & 0x3F);
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int blue = 156 + ((hashValue >> 12) & 0x3F);
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return QColor(red, green, blue);
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}
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