Added stdinstance plugin and a ton of plugin stuff.

data/plugin/pluginmanager.cpp

@@ -0,0 +1,96 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "pluginmanager.h"
+
+#include <QDir>
+#include <QDirIterator>
+#include <QFileInfo>
+
+#include <QtPlugin>
+
+#include "data/plugin/instancetypeplugin.h"
+
+PluginManager PluginManager::manager;
+
+PluginManager::PluginManager() :
+	QObject(NULL)
+{
+	
+}
+
+bool PluginManager::loadPlugins(QString pluginDir)
+{
+	m_plugins.clear();
+	
+	QDir dir(pluginDir);
+	QDirIterator iter(dir);
+	
+	while (iter.hasNext())
+	{
+		QFileInfo pluginFile(dir.absoluteFilePath(iter.next()));
+		
+		if (pluginFile.exists() && pluginFile.isFile())
+		{
+			QPluginLoader pluginLoader(pluginFile.absoluteFilePath());
+			pluginLoader.load();
+			QObject *plugin = pluginLoader.instance();
+			if (plugin)
+			{
+				qDebug(QString("Loaded plugin %1.").
+					   arg(pluginFile.baseName()).toUtf8());
+				m_plugins.push_back(plugin);
+			}
+			else
+			{
+				qWarning(QString("Error loading plugin %1. Not a valid plugin.").
+						 arg(pluginFile.baseName()).toUtf8());
+			}
+		}
+	}
+	
+	return true;
+}
+
+bool PluginManager::initInstanceTypes()
+{
+	for (int i = 0; i < m_plugins.count(); i++)
+	{
+		InstanceTypePlugin *plugin = qobject_cast<InstanceTypePlugin *>(m_plugins[i]);
+		if (plugin)
+		{
+			QList<InstanceType *> instanceTypes = plugin->getInstanceTypes();
+			
+			for (int i = 0; i < instanceTypes.count(); i++)
+			{
+				InstanceLoader::InstTypeError error = 
+						InstanceLoader::loader.registerInstanceType(instanceTypes[i]);
+				switch (error)
+				{
+				case InstanceLoader::TypeIDExists:
+					qWarning(QString("Instance type %1 already registered.").
+							 arg(instanceTypes[i]->typeID()).toUtf8());
+				}
+			}
+		}
+	}
+	
+	return true;
+}
+
+QObject *PluginManager::getPlugin(int index)
+{
+	return m_plugins[index];
+}