| 1 |
|
| 2 |
|
| 3 |
#ifndef _PLAYLIST_H |
| 4 |
#define _PLAYLIST_H |
| 5 |
|
| 6 |
#include <List.h> |
| 7 |
#include <Entry.h> |
| 8 |
#include <SupportKit.h> |
| 9 |
#include <Message.h> |
| 10 |
|
| 11 |
|
| 12 |
// messages that you receive when watching a playlist |
| 13 |
enum { |
| 14 |
PLAYLIST_ADD = 'pl\0\1', // something was added to the playlist |
| 15 |
PLAYLIST_REMOVE = 'pl\0\2', // something was removed from the playlist |
| 16 |
PLAYLIST_EMPTY = 'pl\0\3', // playlist was emptied |
| 17 |
PLAYLIST_DESTROYED = 'pl\0\4', // playlist no longer exists. Note that you can only |
| 18 |
// receive this if a playlist goes away for which you |
| 19 |
// registered as a listener, but didn't keep a PlaylistPtr |
| 20 |
// for. Needless to say, this is a Bad Thing. |
| 21 |
PLAYLIST_LOST_CONTROLS = 'pl\0\5', // playlist lost its set of controls |
| 22 |
PLAYLIST_GAINED_CONTROLS = 'pl\0\6', // playlist gained a set of controls |
| 23 |
PLAYLIST_CURRENT = 'pl\0\7', // the "current item" changed |
| 24 |
PLAYLIST_SORTED = 'pl\1\0', // the playlist just got sorted. You'll want to rescan it now |
| 25 |
PLAYLIST_ITEM_RENAMED = 'pl\1\1' // an item in the playlist got renamed |
| 26 |
}; |
| 27 |
|
| 28 |
|
| 29 |
class _PlayListEntry; |
| 30 |
class AudioFile; |
| 31 |
struct file_info; |
| 32 |
|
| 33 |
|
| 34 |
// Never EVER use this class directly!!! |
| 35 |
// ALWAYS go through the PlaylistPtr class defined below. |
| 36 |
class PrivatePlaylist |
| 37 |
{ |
| 38 |
public: |
| 39 |
status_t RestoreFromMessage(const BMessage *mes, int32 index=0); |
| 40 |
void SaveToMessage(BMessage &mes) const; |
| 41 |
|
| 42 |
void MakeEmpty(); |
| 43 |
int32 CountItems() const; |
| 44 |
int32 Add(const entry_ref &ref, int32 index= -1); |
| 45 |
int32 Add(const char *path, int32 index= -1); |
| 46 |
status_t AddDir(const entry_ref &ref, int32 index=-1); |
| 47 |
status_t AddDir(const char *path, int32 index=-1); |
| 48 |
status_t InsertRefsFromMessage(BMessage *message, char *refname, int32 index); |
| 49 |
status_t AddRefsFromMessage(BMessage *message, char *refname); |
| 50 |
status_t SetName(int32 ID, const char *name); |
| 51 |
|
| 52 |
int32 IDForItemAt(int32 index) const; |
| 53 |
const char* PathForItem(int32 ID) const; |
| 54 |
const char* NameForItem(int32 ID) const; |
| 55 |
status_t Remove(int32 ID); |
| 56 |
|
| 57 |
const char* CurrentPath() const; |
| 58 |
const char* CurrentName() const; |
| 59 |
|
| 60 |
status_t Shuffle(); |
| 61 |
status_t Sort(); |
| 62 |
status_t SortByPath(); |
| 63 |
|
| 64 |
int32 CurrentIndex() const; |
| 65 |
int32 CurrentID() const; |
| 66 |
status_t GetInfo(int32 id, file_info *info); |
| 67 |
|
| 68 |
status_t AddListener(BHandler *handler); |
| 69 |
status_t RemoveListener(BHandler *handler); |
| 70 |
|
| 71 |
void Play(void); |
| 72 |
void Pause(void); |
| 73 |
float Pitch(void); |
| 74 |
void SetPitch(float); |
| 75 |
double Position(void); |
| 76 |
void SetPosition(double); |
| 77 |
float Volume(void); |
| 78 |
void SetVolume(float); |
| 79 |
void PlayFile(int32 ID); |
| 80 |
void PlayNext(); |
| 81 |
void PlayPrevious(bool reverse=false); |
| 82 |
|
| 83 |
bool Lock(); |
| 84 |
void Unlock(); |
| 85 |
bool IsLocked(); |
| 86 |
|
| 87 |
bool HasControls(); |
| 88 |
status_t AddControls(); |
| 89 |
bool IsValid(); |
| 90 |
|
| 91 |
private: |
| 92 |
#ifdef PLAYLIST_SECRET_INNER_WORKINGS |
| 93 |
PLAYLIST_SECRET_INNER_WORKINGS |
| 94 |
#endif |
| 95 |
PrivatePlaylist(); |
| 96 |
~PrivatePlaylist(); |
| 97 |
|
| 98 |
void pInit(); |
| 99 |
void pAddDirToList(const entry_ref &ref, int32 index=-1); |
| 100 |
void pAddPlayListToList(const entry_ref *ref, int32 index); |
| 101 |
static const char* pNameForItem(_PlayListEntry *); |
| 102 |
static const char* pPathForItem(_PlayListEntry *); |
| 103 |
_PlayListEntry *pItemForID(int32 ID) const; |
| 104 |
int32 pIndexForID(int32 ID) const; |
| 105 |
status_t pAddPlaylistEntry(_PlayListEntry *pe, int32 index); |
| 106 |
status_t pNotify(uint32 what, int32 who, int32 where); |
| 107 |
status_t pDropNotification(); |
| 108 |
status_t pFlushNotification(); |
| 109 |
void pCheckLock() const; |
| 110 |
void pSetControlSet(class audio*); |
| 111 |
status_t SetCurrentIndex(int32 index); |
| 112 |
static int pSortFunc(const void *item1,const void *item2); |
| 113 |
static int pSortPathFunc(const void *item1,const void *item2); |
| 114 |
static int pShuffleFunc(const void *item1,const void *item2); |
| 115 |
|
| 116 |
sem_id locksem; |
| 117 |
thread_id lockthread; |
| 118 |
int32 lockcount; |
| 119 |
bool isshuffled; |
| 120 |
int32 numitems; |
| 121 |
int32 currentindex; |
| 122 |
BList entrylist; |
| 123 |
BList listeners; |
| 124 |
BMessage notification; |
| 125 |
unsigned refcounter; |
| 126 |
AudioFile *audiofile; |
| 127 |
audio *controlset; |
| 128 |
_PlayListEntry *cache; |
| 129 |
}; |
| 130 |
|
| 131 |
|
| 132 |
// A PlaylistPtr acts as a pointer to a playlist. You dereference a |
| 133 |
// PlaylistPtr using regular pointer semantics to access the playlist's functions. |
| 134 |
// Note that as long as you have a PlaylistPtr for a playlist, |
| 135 |
// that playlist will remain valid. Its associated controls might go |
| 136 |
// away (i.e. the playlist gets removed from the controller/window), |
| 137 |
// but you can still work with the files in the playlist, or add it |
| 138 |
// to the controller again. |
| 139 |
class PlaylistPtr |
| 140 |
{ |
| 141 |
public: |
| 142 |
PlaylistPtr(PrivatePlaylist* p=NULL); |
| 143 |
PlaylistPtr(const PlaylistPtr& p); |
| 144 |
PlaylistPtr(int32 ID); |
| 145 |
~PlaylistPtr(); |
| 146 |
|
| 147 |
PrivatePlaylist* operator-> () { return ppl; } |
| 148 |
PrivatePlaylist& operator* () { return *ppl; } |
| 149 |
PlaylistPtr& operator= (const PlaylistPtr& p); |
| 150 |
bool operator==(const PlaylistPtr &p) const; |
| 151 |
bool operator!=(const PlaylistPtr &p) const; |
| 152 |
|
| 153 |
private: |
| 154 |
PrivatePlaylist* ppl; |
| 155 |
}; |
| 156 |
|
| 157 |
#endif |
