mirror of https://github.com/VDR4Arch/vdr.git
54 lines
1.9 KiB
C++
54 lines
1.9 KiB
C++
/*
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* sourceparams.h: Source parameter handling
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: sourceparams.h 4.1 2015/08/02 11:56:25 kls Exp $
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*/
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#ifndef __SOURCEPARAMS_H
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#define __SOURCEPARAMS_H
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#include "channels.h"
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#include "osdbase.h"
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#include "tools.h"
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class cSourceParam : public cListObject {
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private:
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char source;
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public:
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cSourceParam(char Source, const char *Description);
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///< Sets up a parameter handler for the given Source.
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///< Source must be in the range 'A'...'Z', and there can only
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///< be one cSourceParam for any given source.
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///< Description contains a short, one line description of this source.
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///< If a plugin sets up a new cSourceParam, this will also trigger
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///< defining the appropriate cSource automatically.
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///< Objects of cSourceParam shall only be created on the heap, and
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///< shall never be deleted (they will be deleted automatically when
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///< the program ends).
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char Source(void) const { return source; }
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virtual void SetData(cChannel *Channel) = 0;
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///< Sets all source specific parameters to those of the given Channel.
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///< Must also reset a counter to use with later calls to GetOsdItem().
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virtual void GetData(cChannel *Channel) = 0;
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///< Copies all source specific parameters to the given Channel.
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virtual cOsdItem *GetOsdItem(void) = 0;
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///< Returns all the OSD items necessary for editing the source
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///< specific parameters of the channel that was given in the last
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///< call to SetData(). Each call to GetOsdItem() returns exactly
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///< one such item. After all items have been fetched, any further
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///< calls to GetOsdItem() return NULL. After another call to
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///< SetData(), the OSD items can be fetched again.
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};
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class cSourceParams : public cList<cSourceParam> {
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public:
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cSourceParam *Get(char Source);
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};
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extern cSourceParams SourceParams;
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#endif //__SOURCEPARAMS_H
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