1 files changed, 62 insertions, 0 deletions
diff --git a/library/icon_buffer.h b/library/icon_buffer.h
new file mode 100644
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--- /dev/null
+++ b/library/icon_buffer.h
@@ -0,0 +1,62 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) 2008-2010 ZenJu (zhnmju123 AT gmx.de)                    *
+// **************************************************************************
+//
+#ifndef ICONBUFFER_H_INCLUDED
+#define ICONBUFFER_H_INCLUDED
+
+#include <vector>
+#include "../shared/zstring.h"
+#include <memory>
+#include <wx/icon.h>
+#include <boost/thread/mutex.hpp>
+
+
+namespace ffs3
+{
+
+class IconBuffer
+{
+public:
+    static const wxIcon& getDirectoryIcon(); //one folder icon should be sufficient...
+
+    static IconBuffer& getInstance();
+    bool requestFileIcon(const Zstring& fileName, wxIcon* icon = NULL); //returns false if icon is not in buffer
+    void setWorkload(const std::vector<Zstring>& load); //(re-)set new workload of icons to be retrieved;
+
+#ifdef FFS_WIN
+    static const int ICON_SIZE = 16;  //size in pixel
+#elif defined FFS_LINUX
+    static const int ICON_SIZE = 24;  //size in pixel
+#endif
+
+private:
+    IconBuffer();
+    ~IconBuffer();
+
+    static const size_t BUFFER_SIZE = 800; //maximum number of icons to buffer
+
+    class IconDB;
+    class IconHolder;
+    class IconDbSequence;
+
+    //methods used by worker thread
+    void insertIntoBuffer(const DefaultChar* entryName, const IconHolder& icon);
+
+    static IconHolder getAssociatedIcon(const Zstring& filename);
+    static IconHolder getAssociatedIconByExt(const Zstring& extension);
+
+//---------------------- Shared Data -------------------------
+    boost::mutex lockIconDB;
+    std::auto_ptr<IconDB> buffer;  //use synchronisation when accessing this!
+    std::auto_ptr<IconDbSequence> bufSequence; //save sequence of buffer entry to delete oldest elements (implicitly shared by sharing Zstring with IconDB!!!)
+//------------------------------------------------------------
+
+    class WorkerThread;
+    std::auto_ptr<WorkerThread> worker;
+};
+}
+
+#endif // ICONBUFFER_H_INCLUDED