115 lines
2.8 KiB
C++
Executable File
115 lines
2.8 KiB
C++
Executable File
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#include "style_manager.h"
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#include <LtsPluginManager/lts_plugin_loader.h>
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#include <PluginInterfaces/style_plugin_interface.h>
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#include <QPluginLoader>
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#include <QDebug>
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namespace LtsUtils
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{
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struct StyleManagerHandler
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{
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StyleManager styleManager;
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};
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Q_GLOBAL_STATIC(StyleManagerHandler, s_styleManagerHandler)
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StyleManager *StyleManager::getInstance()
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{
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return &s_styleManagerHandler->styleManager;
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}
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bool StyleManager::loadStyle(const QString &stylePluginName, bool highDpi)
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{
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if (m_currentStylePluginLoader != nullptr)
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{
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QObject *pluginInstance = m_currentStylePluginLoader->instance();
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StylePlugin::Plugin *sp = qobject_cast<StylePlugin::Plugin *>(pluginInstance);
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if (sp == nullptr)
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{
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qWarning() << "StyleManager::loadStyle: could not unload style plugin - wrong type ("
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<< pluginInstance->metaObject()->className() << ") - new style not loaded";
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return false;
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}
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sp->unloadStyle();
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m_currentStylePluginLoader = nullptr;
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}
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LtsPluginManager::LtsPluginLoader *pluginLoader = LtsPluginManager::LtsPluginLoader::getInstance();
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QPluginLoader *stylePluginLoader = nullptr;
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int pluginsLoaded = 0;
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std::function<bool(const LtsPluginManager::PluginInstance &pi)> loadPluginFn = [&stylePluginLoader, &pluginsLoaded]
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(const LtsPluginManager::PluginInstance &pi)
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{
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stylePluginLoader = pi.pluginLoader;
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pluginsLoaded++;
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return true;
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};
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if (!pluginLoader->loadPlugins(LtsPluginManager::PluginType::STYLE, loadPluginFn, QStringList() << stylePluginName))
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{
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qWarning() << "StyleManager::loadStyle: Error loading Style Plugin - using default Qt style";
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return false;
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}
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if (pluginsLoaded == 0)
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{
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qWarning() << "StyleManager::loadStyle: Could not find Style Plugin" << stylePluginName << "- using default Qt style";
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return false;
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}
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if (pluginsLoaded > 1)
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{
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qWarning() << "StyleManager::loadStyle: Style Plugin" << stylePluginName << " is ambiguous - using default Qt style";
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return false;
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}
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if (stylePluginLoader == nullptr)
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{
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qWarning() << "StyleManager::loadStyle: No Style Plugin loader available - using default Qt style";
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return false;
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}
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StylePlugin::Plugin *sp = qobject_cast<StylePlugin::Plugin *>(stylePluginLoader->instance());
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if (sp == nullptr)
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{
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qWarning() << "StyleManager::loadStyle: could not load style plugin - wrong type ("
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<< stylePluginLoader->instance()->metaObject()->className() << ") - new style not loaded";
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return false;
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}
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sp->loadStyle(highDpi);
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m_currentStylePluginLoader = stylePluginLoader;
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m_stylePluginName = stylePluginName;
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emit signalStyleChanged(stylePluginName);
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return true;
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}
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}
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