00001
00023 #ifndef PLUGINLOADER_H
00024 #define PLUGINLOADER_H
00025
00026 #include <QDir>
00027 #include <QFile>
00028 #include <QDebug>
00029 #include <QFileInfo>
00030 #include <QPluginLoader>
00031 #include <QString>
00032 #include <QStringList>
00033
00034 #include <vector>
00035
00036 #include "../../Support/plugininterface.h"
00037
00038 template<class T>
00040 class PluginLoader
00041 {
00042 public:
00043 static void loadPlugins(QDir pluginDir, std::vector<T> &retVector, QStringList filter = (QStringList("*")));
00044 static QObject* loadPlugin(QFileInfo filePath);
00045 };
00046
00047 template<class T>
00053 void PluginLoader<T>::loadPlugins(QDir pluginDir, std::vector<T> &retVector, QStringList filter)
00054 {
00055 qDebug() << "PluginLoader<T>::loadPlugins()";
00056 pluginDir.setFilter(QDir::Files);
00057 pluginDir.setNameFilters(filter);
00058
00059 std::vector<T> pluginsFriction;
00060
00061 QFileInfoList fileList = pluginDir.entryInfoList();
00062 QObject *plugin;
00063 for (int i = 0; i < fileList.size(); ++i) {
00064 QFileInfo fileInfo = fileList.at(i);
00065 plugin = loadPlugin(fileInfo);
00066 if (plugin != NULL) {
00067 pluginsFriction.push_back(qobject_cast<T>(plugin));
00068 }
00069 }
00070 retVector.swap(pluginsFriction);
00071
00072 }
00073
00074 template<class T>
00075 QObject * PluginLoader<T>::loadPlugin(QFileInfo fileInfo)
00076 {
00077 QObject *plugin;
00078 QPluginLoader pluginLoader(fileInfo.absoluteFilePath());
00079 pluginLoader.load();
00080 if (pluginLoader.isLoaded()) {
00081 plugin = pluginLoader.instance();
00082 if (plugin) {
00083 qDebug() << "Plugin " << fileInfo.fileName() << " successfully loaded";
00084 return plugin;
00085 } else {
00086 qDebug() << "- Loading of plugin " << fileInfo.fileName() << " failed, no instance";
00087 }
00088 } else {
00089 qDebug() << "- Loading of plugin " << fileInfo.fileName() << " failed, not successfully loaded";
00090 qDebug() << "Reason: " << pluginLoader.errorString();
00091 }
00092 return NULL;
00093 }
00094
00095 #endif // PLUGINLOADER_H
