131 lines
3.8 KiB
C++
131 lines
3.8 KiB
C++
/*
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Copyright (C) 2021 Srivats P.
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This file is part of "Ostinato"
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This is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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#include "thememanager.h"
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#include "settings.h"
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#include <QApplication>
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#include <QDebug>
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#include <QDir>
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#include <QDirIterator>
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#include <QRegularExpression>
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#include <QResource>
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ThemeManager *ThemeManager::instance_{nullptr};
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ThemeManager::ThemeManager()
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{
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themeDir_ = QCoreApplication::applicationDirPath() + "/themes/";
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#if defined(Q_OS_MAC)
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/*
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* Executable and Theme directory location inside app bundle -
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* Ostinato.app/Contents/MacOS/
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* Ostinato.app/Contents/SharedSupport/themes/
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*/
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themeDir_.replace("/MacOS/", "/SharedSupport/");
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#elif defined(Q_OS_UNIX)
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/*
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* Possible (but not comprehensive) locations for Ostinato executable
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* and theme directory locations
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*
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* non-install-dir/
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* non-install-dir/themes/
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*
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* /usr/[local]/bin/
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* /usr/[local]/share/ostinato/themes/
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*
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* /opt/ostinato/bin/
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* /opt/ostinato/share/themes/
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*/
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if (themeDir_.contains(QRegularExpression("^/usr/.*/bin/")))
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themeDir_.replace("/bin/", "/share/ostinato/");
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else if (themeDir_.contains(QRegularExpression("^/opt/.*/bin/")))
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themeDir_.replace("/bin/", "/share/");
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#endif
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qDebug("Themes directory: %s", qPrintable(themeDir_));
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}
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QStringList ThemeManager::themeList()
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{
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QDir themeDir(themeDir_);
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themeDir.setFilter(QDir::Files);
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themeDir.setNameFilters(QStringList() << "*.qss");
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themeDir.setSorting(QDir::Name);
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QStringList themes = themeDir.entryList();
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for (QString& theme : themes)
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theme.remove(".qss");
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themes.prepend("default");
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return themes;
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}
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void ThemeManager::setTheme(QString theme)
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{
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// Remove current theme, if we have one
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QString oldTheme = appSettings->value(kThemeKey).toString();
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if (!oldTheme.isEmpty()) {
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// Remove stylesheet first so that there are
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// no references to resources when unregistering 'em
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qApp->setStyleSheet("");
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QString rccFile = themeDir_ + oldTheme + ".rcc";
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if (QResource::unregisterResource(rccFile)) {
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qDebug("Unable to unregister theme rccFile %s",
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qPrintable(rccFile));
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}
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appSettings->setValue(kThemeKey, QVariant());
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}
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if (theme.isEmpty() || (theme == "default"))
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return;
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// Apply new theme
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QFile qssFile(themeDir_ + theme + ".qss");
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if (!qssFile.open(QFile::ReadOnly)) {
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qDebug("Unable to open theme qssFile %s",
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qPrintable(qssFile.fileName()));
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return;
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}
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// Register theme resource before applying theme style sheet
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QString rccFile = themeDir_ + theme + ".rcc";
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if (!QResource::registerResource(rccFile))
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qDebug("Unable to register theme rccFile %s", qPrintable(rccFile));
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#if 0 // FIXME: debug only
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QDirIterator it(":", QDirIterator::Subdirectories);
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while (it.hasNext()) {
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qDebug() << it.next();
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}
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#endif
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QString styleSheet { qssFile.readAll() };
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qApp->setStyleSheet(styleSheet);
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appSettings->setValue(kThemeKey, theme);
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}
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ThemeManager* ThemeManager::instance()
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{
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if (!instance_)
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instance_ = new ThemeManager();
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return instance_;
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}
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