headers/os/media/MediaFiles.h

   1 /*
   2  * Copyright 2009, Haiku, Inc. All rights reserved.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef _MEDIA_FILES_H
   6 #define _MEDIA_FILES_H
   7
   8
   9 #include <MediaDefs.h>
  10 #include <List.h>
  11 #include <String.h>
  12
  13 struct entry_ref;
  14
  15
  16 class BMediaFiles {
  17 public:
  18
  19                                                                 BMediaFiles();
  20         virtual                                         ~BMediaFiles();
  21
  22         virtual status_t                        RewindTypes();
  23         virtual status_t                        GetNextType(BString* _type);
  24
  25         virtual status_t                        RewindRefs(const char* type);
  26         virtual status_t                        GetNextRef(BString* _type,
  27                                                                         entry_ref* _ref = NULL);
  28
  29         virtual status_t                        GetRefFor(const char* type, const char* item,
  30                                                                         entry_ref* _ref);
  31         virtual status_t                        SetRefFor(const char* type, const char* item,
  32                                                                         const entry_ref& ref);
  33
  34                         status_t                        GetAudioGainFor(const char* type,
  35                                                                         const char* item, float* _gain);
  36                         status_t                        SetAudioGainFor(const char* type,
  37                                                                         const char* item, float gain);
  38
  39         // TODO: Rename this to "ClearRefFor" when breaking BC.
  40         virtual status_t                        RemoveRefFor(const char* type,
  41                                                                         const char* item, const entry_ref& ref);
  42
  43         virtual status_t                        RemoveItem(const char* type, const char* item);
  44
  45         static  const char                      B_SOUNDS[];
  46
  47         // TODO: Needs Perform() for FBC reasons!
  48
  49 private:
  50         // FBC padding
  51
  52                         status_t                        _Reserved_MediaFiles_0(void*, ...);
  53         virtual status_t                        _Reserved_MediaFiles_1(void*, ...);
  54         virtual status_t                        _Reserved_MediaFiles_2(void*, ...);
  55         virtual status_t                        _Reserved_MediaFiles_3(void*, ...);
  56         virtual status_t                        _Reserved_MediaFiles_4(void*, ...);
  57         virtual status_t                        _Reserved_MediaFiles_5(void*, ...);
  58         virtual status_t                        _Reserved_MediaFiles_6(void*, ...);
  59         virtual status_t                        _Reserved_MediaFiles_7(void*, ...);
  60
  61                         void                            _ClearTypes();
  62                         void                            _ClearItems();
  63
  64 private:
  65                         BList                           fTypes;
  66                         int                                     fTypeIndex;
  67                         BString                         fCurrentType;
  68                         BList                           fItems;
  69                         int                                     fItemIndex;
  70 };
  71
  72 #endif // _MEDIA_FILES_H
  73