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+/*
+ * sourceparams.h: Source parameter handling
+ *
+ * See the main source file 'vdr.c' for copyright information and
+ * how to reach the author.
+ *
+ * $Id: sourceparams.h 1.1 2010/02/28 11:58:03 kls Exp $
+ */
+
+#ifndef __SOURCEPARAMS_H
+#define __SOURCEPARAMS_H
+
+#include "channels.h"
+#include "osdbase.h"
+#include "tools.h"
+
+class cSourceParam : public cListObject {
+private:
+  char source;
+public:
+  cSourceParam(char Source, const char *Description);
+    ///< Sets up a parameter handler for the given Source.
+    ///< Source must be in the range 'A'...'Z', and there can only
+    ///< be one cSourceParam for any given source.
+    ///< Description contains a short, one line description of this source.
+    ///< If a plugin sets up a new cSourceParam, this will also trigger
+    ///< defining the appropriate cSource automatically.
+    ///< Objects of cSourceParam shall only be created on the heap, and
+    ///< shall never be deleted (they will be deleted automatically when
+    ///< the program ends).
+  char Source(void) const { return source; }
+  virtual void SetData(cChannel *Channel) = 0;
+    ///< Sets all source specific parameters to those of the given Channel.
+    ///< Must also reset a counter to use with later calls to GetOsdItem().
+  virtual void GetData(cChannel *Channel) = 0;
+    ///< Copies all source specific parameters to the given Channel.
+  virtual cOsdItem *GetOsdItem(void) = 0;
+    ///< Returns all the OSD items necessary for editing the source
+    ///< specific parameters of the channel that was given in the last
+    ///< call to SetData(). Each call to GetOsdItem() returns exactly
+    ///< one such item. After all items have been fetched, any further
+    ///< calls to GetOsdItem() return NULL. After another call to
+    ///< SetData(), the OSD items can be fetched again.
+  };
+
+class cSourceParams : public cList<cSourceParam> {
+public:
+  cSourceParam *Get(char Source) const;
+  };
+
+extern cSourceParams SourceParams;
+
+#endif //__SOURCEPARAMS_H