git.sesse.net Git - vlc/blob - modules/gui/skins2/src/vlcproc.hpp

   1 /*****************************************************************************
   2  * vlcproc.hpp
   3  *****************************************************************************
   4  * Copyright (C) 2003 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Cyril Deguet     <asmax@via.ecp.fr>
   8  *          Olivier Teuli�e <ipkiss@via.ecp.fr>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  23  *****************************************************************************/
  24
  25 #ifndef VLCPROC_HPP
  26 #define VLCPROC_HPP
  27
  28 #include <set>
  29
  30 #include "../vars/equalizer.hpp"
  31 #include "../vars/playlist.hpp"
  32 #include "../vars/playtree.hpp"
  33 #include "../vars/time.hpp"
  34 #include "../vars/volume.hpp"
  35 #include "../utils/position.hpp"
  36 #include "../utils/var_text.hpp"
  37 #include "../commands/cmd_generic.hpp"
  38
  39 class OSTimer;
  40 class VarBool;
  41 struct aout_instance_t;
  42
  43
  44 /// Singleton object handling VLC internal state and playlist
  45 class VlcProc: public SkinObject
  46 {
  47     public:
  48         /// Get the instance of VlcProc
  49         /// Returns NULL if the initialization of the object failed
  50         static VlcProc *instance( intf_thread_t *pIntf );
  51
  52         /// Delete the instance of VlcProc
  53         static void destroy( intf_thread_t *pIntf );
  54
  55         /// Getter for the playlist variable
  56         Playlist &getPlaylistVar() { return *((Playlist*)m_cPlaylist.get()); }
  57
  58         /// Getter for the playtree variable
  59         Playtree &getPlaytreeVar() { return *((Playtree*)m_cPlaytree.get()); }
  60
  61         /// Getter for the time variable
  62         StreamTime &getTimeVar() { return *((StreamTime*)(m_cVarTime.get())); }
  63
  64         /// Getter for the volume variable
  65         Volume &getVolumeVar() { return *((Volume*)(m_cVarVolume.get())); }
  66
  67         /// Getter for the stream name variable
  68         VarText &getStreamNameVar()
  69            { return *((VarText*)(m_cVarStreamName.get())); }
  70
  71         /// Getter for the stream URI variable
  72         VarText &getStreamURIVar()
  73             { return *((VarText*)(m_cVarStreamURI.get())); }
  74
  75         /// Getter for the vout size variable
  76         VarBox &getVoutSizeVar() { return m_varVoutSize; }
  77
  78         /// Set the vout window handle
  79         void registerVoutWindow( void *pVoutWindow );
  80
  81         /// Unset the vout window handle
  82         void unregisterVoutWindow( void *pVoutWindow );
  83
  84         /// Indicate whether the embedded video output is currently used
  85         bool isVoutUsed() const { return m_pVout != NULL; }
  86
  87         /// If an embedded video output is used, drop it (i.e. tell it to stop
  88         /// using our window handle)
  89         void dropVout();
  90
  91     protected:
  92         // Protected because it is a singleton
  93         VlcProc( intf_thread_t *pIntf );
  94         virtual ~VlcProc();
  95
  96     private:
  97         /// Timer to call manage() regularly (via doManage())
  98         OSTimer *m_pTimer;
  99         /// Playlist variable
 100         VariablePtr m_cPlaylist;
 101         /// Playtree variable FIXME
 102         VariablePtr m_cPlaytree;
 103         VariablePtr m_cVarRandom;
 104         VariablePtr m_cVarLoop;
 105         VariablePtr m_cVarRepeat;
 106         /// Variable for current position of the stream
 107         VariablePtr m_cVarTime;
 108         /// Variable for audio volume
 109         VariablePtr m_cVarVolume;
 110         /// Variable for current stream properties
 111         VariablePtr m_cVarStreamName;
 112         VariablePtr m_cVarStreamURI;
 113         /// Variable for the "mute" state
 114         VariablePtr m_cVarMute;
 115         /// Variables related to the input
 116         VariablePtr m_cVarPlaying;
 117         VariablePtr m_cVarStopped;
 118         VariablePtr m_cVarPaused;
 119         VariablePtr m_cVarSeekable;
 120         /// Variable for the vout
 121         VarBox m_varVoutSize;
 122         /// Equalizer variables
 123         EqualizerBands m_varEqBands;
 124         VariablePtr m_cVarEqPreamp;
 125         VariablePtr m_cVarEqualizer;
 126
 127         /// Set of handles of vout windows
 128         /**
 129          * When changing the skin, the handles of the 2 skins coexist in the
 130          * set (but this is temporary, until the old theme is destroyed).
 131          */
 132         set<void *> m_handleSet;
 133         /// Vout thread
 134         vout_thread_t *m_pVout;
 135         /// Audio output
 136         aout_instance_t *m_pAout;
 137
 138         /**
 139          * Poll VLC internals to update the status (volume, current time in
 140          * the stream, current filename, play/pause/stop status, ...)
 141          * This function should be called regurlarly, since there is no
 142          * callback mechanism (yet?) to automatically update a variable when
 143          * the internal status changes
 144          */
 145         void manage();
 146
 147         /// Define the command that calls manage()
 148         DEFINE_CALLBACK( VlcProc, Manage );
 149
 150         /// Refresh audio variables
 151         void refreshAudio();
 152
 153         /// Update the stream name variable
 154         void updateStreamName( playlist_t *p_playlist );
 155
 156         /// Callback for intf-change variable
 157         static int onIntfChange( vlc_object_t *pObj, const char *pVariable,
 158                                  vlc_value_t oldVal, vlc_value_t newVal,
 159                                  void *pParam );
 160
 161         /// Callback for intf-show variable
 162         static int onIntfShow( vlc_object_t *pObj, const char *pVariable,
 163                                vlc_value_t oldVal, vlc_value_t newVal,
 164                                void *pParam );
 165
 166         /// Callback for item-change variable
 167         static int onItemChange( vlc_object_t *pObj, const char *pVariable,
 168                                  vlc_value_t oldVal, vlc_value_t newVal,
 169                                  void *pParam );
 170
 171         /// Callback for playlist-current variable
 172         static int onPlaylistChange( vlc_object_t *pObj, const char *pVariable,
 173                                      vlc_value_t oldVal, vlc_value_t newVal,
 174                                      void *pParam );
 175
 176         /// Callback for skins2-to-load variable
 177         static int onSkinToLoad( vlc_object_t *pObj, const char *pVariable,
 178                                  vlc_value_t oldVal, vlc_value_t newVal,
 179                                  void *pParam );
 180
 181         /// Callback to request a vout window
 182         static void *getWindow( intf_thread_t *pIntf, vout_thread_t *pVout,
 183                                 int *pXHint, int *pYHint,
 184                                 unsigned int *pWidthHint,
 185                                 unsigned int *pHeightHint );
 186
 187         /// Callback to release a vout window
 188         static void releaseWindow( intf_thread_t *pIntf, void *pWindow );
 189
 190         /// Callback to change a vout window
 191         static int controlWindow( intf_thread_t *pIntf, void *pWindow,
 192                                   int query, va_list args );
 193
 194         /// Callback for equalizer-bands variable
 195         static int onEqBandsChange( vlc_object_t *pObj, const char *pVariable,
 196                                     vlc_value_t oldVal, vlc_value_t newVal,
 197                                     void *pParam );
 198
 199         /// Callback for equalizer-preamp variable
 200         static int onEqPreampChange( vlc_object_t *pObj, const char *pVariable,
 201                                      vlc_value_t oldVal, vlc_value_t newVal,
 202                                      void *pParam );
 203 };
 204
 205
 206 #endif