iconLoader.h

Go to the documentation of this file.

#ifndef BALL_VIEW_KERNEL_ICONLOADER_H
#define BALL_VIEW_KERNEL_ICONLOADER_H

#include <list>
#include <boost/shared_ptr.hpp>
#include <BALL/DATATYPE/hashMap.h>

#include <QtCore/QMutex>
#include <QtCore/QReadWriteLock>
#include <QtCore/QStringList>

class QIcon;

namespace BALL
{
  class String;

  namespace VIEW
  {
    class BALL_VIEW_EXPORT IconLoader
    {
      public:
        IconLoader();

        explicit IconLoader(const QStringList& icon_dirs);

        explicit IconLoader(const std::list<String>& icon_dirs);

        ~IconLoader();

        static IconLoader& instance();

        void appendIconPath(const String& path);

        const QIcon& getIcon(const String& name);

      private:
        //Threads and singleton
        static QMutex mutex_;
        static boost::shared_ptr<IconLoader> loader_;
        QReadWriteLock hash_map_lock_;

        //Private members
        const QIcon* const invalid_;
        std::list<int> sizes_;
        QStringList icon_dirs_;
        HashMap<String, QIcon*> icon_map_;

        //Private methods
        void setup_();
        QIcon* loadIcon_(const String& name);
    };
  }
}

#endif //BALL_VIEW_KERNEL_ICONLOADER_H