C++ (Cpp) DescriptorMap Examples

Example #1

File: PluginFactory.cpp Project: JohannesLorenz/lmms

void PluginFactory::discoverPlugins()
{
	DescriptorMap descriptors;
	PluginInfoList pluginInfos;
	m_pluginByExt.clear();

	QSet<QFileInfo> files;
	for (const QString& searchPath : QDir::searchPaths("plugins"))
	{
		files.unite(QDir(searchPath).entryInfoList(nameFilters).toSet());
	}

	// Cheap dependency handling: zynaddsubfx needs ZynAddSubFxCore. By loading
	// all libraries twice we ensure that libZynAddSubFxCore is found.
	for (const QFileInfo& file : files)
	{
		QLibrary(file.absoluteFilePath()).load();
	}

	for (const QFileInfo& file : files)
	{
		auto library = std::make_shared<QLibrary>(file.absoluteFilePath());
		if (! library->load()) {
			m_errors[file.baseName()] = library->errorString();
			qWarning("%s", library->errorString().toLocal8Bit().data());
			continue;
		}

		Plugin::Descriptor* pluginDescriptor = nullptr;
		if (library->resolve("lmms_plugin_main"))
		{
			QString descriptorName = file.baseName() + "_plugin_descriptor";
			if( descriptorName.left(3) == "lib" )
			{
				descriptorName = descriptorName.mid(3);
			}

			pluginDescriptor = reinterpret_cast<Plugin::Descriptor*>(library->resolve(descriptorName.toUtf8().constData()));
			if(pluginDescriptor == nullptr)
			{
				qWarning() << qApp->translate("PluginFactory", "LMMS plugin %1 does not have a plugin descriptor named %2!").
							  arg(file.absoluteFilePath()).arg(descriptorName);
				continue;
			}
		}

		if(pluginDescriptor)
		{
			PluginInfo info;
			info.file = file;
			info.library = library;
			info.descriptor = pluginDescriptor;
			pluginInfos << info;

			auto addSupportedFileTypes =
				[this](QString supportedFileTypes,
					const PluginInfo& info,
					const Plugin::Descriptor::SubPluginFeatures::Key* key = nullptr)
			{
				if(!supportedFileTypes.isNull())
				{
					for (const QString& ext : supportedFileTypes.split(','))
					{
						//qDebug() << "Plugin " << info.name()
						//	<< "supports" << ext;
						PluginInfoAndKey infoAndKey;
						infoAndKey.info = info;
						infoAndKey.key = key
							? *key
							: Plugin::Descriptor::SubPluginFeatures::Key();
						m_pluginByExt.insert(ext, infoAndKey);
					}
				}
			};

			if (info.descriptor->supportedFileTypes)
				addSupportedFileTypes(QString(info.descriptor->supportedFileTypes), info);

			if (info.descriptor->subPluginFeatures)
			{
				Plugin::Descriptor::SubPluginFeatures::KeyList
					subPluginKeys;
				info.descriptor->subPluginFeatures->listSubPluginKeys(
					info.descriptor,
					subPluginKeys);
				for(const Plugin::Descriptor::SubPluginFeatures::Key& key
					: subPluginKeys)
				{
					addSupportedFileTypes(key.additionalFileExtensions(), info, &key);
				}
			}

			descriptors.insert(info.descriptor->type, info.descriptor);
		}
	}

	m_pluginInfos = pluginInfos;
	m_descriptors = descriptors;
}

Example #2

File: PluginFactory.cpp Project: Lukas-W/lmms

void PluginFactory::discoverPlugins()
{
	DescriptorMap descriptors;
	PluginInfoList pluginInfos;
	m_pluginByExt.clear();

	QSet<QFileInfo> files;
	for (const QString& searchPath : QDir::searchPaths("plugins"))
	{
		files.unite(QDir(searchPath).entryInfoList(nameFilters).toSet());
	}

	// Cheap dependency handling: zynaddsubfx needs ZynAddSubFxCore. By loading
	// all libraries twice we ensure that libZynAddSubFxCore is found.
	for (const QFileInfo& file : files)
	{
		QLibrary(file.absoluteFilePath()).load();
	}

	for (const QFileInfo& file : files)
	{
		auto library = std::make_shared<QLibrary>(file.absoluteFilePath());

		if (! library->load()) {
			m_errors[file.baseName()] = library->errorString();
			qWarning("%s", library->errorString().toLocal8Bit().data());
			continue;
		}
		if (library->resolve("lmms_plugin_main") == nullptr) {
			continue;
		}

		QString descriptorName = file.baseName() + "_plugin_descriptor";
		if( descriptorName.left(3) == "lib" )
		{
			descriptorName = descriptorName.mid(3);
		}

		Plugin::Descriptor* pluginDescriptor = reinterpret_cast<Plugin::Descriptor*>(library->resolve(descriptorName.toUtf8().constData()));
		if(pluginDescriptor == nullptr)
		{
			qWarning() << qApp->translate("PluginFactory", "LMMS plugin %1 does not have a plugin descriptor named %2!").
						  arg(file.absoluteFilePath()).arg(descriptorName);
			continue;
		}

		PluginInfo info;
		info.file = file;
		info.library = library;
		info.descriptor = pluginDescriptor;
		pluginInfos << info;

		for (const QString& ext : QString(info.descriptor->supportedFileTypes).split(','))
		{
			m_pluginByExt.insert(ext, info);
		}

		descriptors.insert(info.descriptor->type, info.descriptor);
	}

	m_pluginInfos = pluginInfos;
	m_descriptors = descriptors;
}