modules/gui/qt4/input_manager.hpp

   1 /*****************************************************************************
   2  * input_manager.hpp : Manage an input and interact with its GUI elements
   3  ****************************************************************************
   4  * Copyright (C) 2006-2008 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *          Jean-Baptiste <jb@videolan.org>
   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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #ifndef QVLC_INPUT_MANAGER_H_
  26 #define QVLC_INPUT_MANAGER_H_
  27
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31
  32 #include <vlc_input.h>
  33
  34 #include "qt4.hpp"
  35
  36 #include <QObject>
  37 #include <QEvent>
  38
  39
  40 enum {
  41     PositionUpdate_Type = QEvent::User + IMEventType + 1,
  42     ItemChanged_Type,
  43     ItemStateChanged_Type,
  44     ItemTitleChanged_Type,
  45     ItemRateChanged_Type,
  46     VolumeChanged_Type,
  47     SoundMuteChanged_Type,
  48     ItemEsChanged_Type,
  49     ItemTeletextChanged_Type,
  50     InterfaceVoutUpdate_Type,
  51     StatisticsUpdate_Type, /*10*/
  52     InterfaceAoutUpdate_Type,
  53     MetaChanged_Type,
  54     NameChanged_Type,
  55     InfoChanged_Type,
  56     SynchroChanged_Type,
  57     CachingEvent_Type,
  58     BookmarksChanged_Type,
  59     RecordingEvent_Type,
  60     ProgramChanged_Type,
  61     RandomChanged_Type,
  62     LoopChanged_Type,
  63     RepeatChanged_Type,
  64     LeafToParent_Type,
  65     EPGEvent_Type,
  66 /*    SignalChanged_Type, */
  67
  68     FullscreenControlToggle_Type = QEvent::User + IMEventType + 20,
  69     FullscreenControlShow_Type,
  70     FullscreenControlHide_Type,
  71     FullscreenControlPlanHide_Type,
  72 };
  73
  74 enum { NORMAL,    /* loop: 0, repeat: 0 */
  75        REPEAT_ONE,/* loop: 1, repeat: 0 */
  76        REPEAT_ALL,/* loop: 0, repeat: 1 */
  77 };
  78
  79 class IMEvent : public QEvent
  80 {
  81 friend class InputManager;
  82 friend class MainInputManager;
  83     public:
  84     IMEvent( int type, input_item_t *p_input = NULL )
  85         : QEvent( (QEvent::Type)(type) )
  86     {
  87         if( (p_item = p_input) != NULL )
  88             vlc_gc_incref( p_item );
  89     }
  90     virtual ~IMEvent()
  91     {
  92         if( p_item )
  93             vlc_gc_decref( p_item );
  94     }
  95
  96 private:
  97     input_item_t *p_item;
  98 };
  99
 100 enum PLEventTypes
 101 {
 102     PLItemAppended_Type = QEvent::User + PLEventType + 1,
 103     PLItemRemoved_Type
 104 };
 105
 106 class PLEvent : public QEvent
 107 {
 108 public:
 109     PLEvent( PLEventTypes t, int i, int p )
 110         : QEvent( (QEvent::Type)t ), i_item(i), i_parent(p) {}
 111     int i_item;
 112     int i_parent;
 113 };
 114
 115 class InputManager : public QObject
 116 {
 117     Q_OBJECT
 118     friend class MainInputManager;
 119
 120 public:
 121     InputManager( QObject *, intf_thread_t * );
 122     virtual ~InputManager();
 123
 124     void delInput();
 125     bool hasInput()
 126     {
 127         return p_input /* We have an input */
 128             && !p_input->b_dead /* not dead yet, */
 129             && !p_input->b_eof  /* not EOF either, */
 130             && vlc_object_alive (p_input); /* and the VLC object is alive */
 131     }
 132
 133     bool hasAudio();
 134     bool hasVideo() { return hasInput() && b_video; }
 135     void requestArtUpdate();
 136
 137     QString getName() { return oldName; }
 138     static const QString decodeArtURL( input_item_t *p_item );
 139
 140 private:
 141     intf_thread_t  *p_intf;
 142     input_thread_t *p_input;
 143     vlc_object_t   *p_input_vbi;
 144     input_item_t   *p_item;
 145     int             i_old_playing_status;
 146     QString         oldName;
 147     QString         artUrl;
 148     float           f_rate;
 149     float           f_cache;
 150     bool            b_video;
 151     mtime_t         timeA, timeB;
 152
 153     void customEvent( QEvent * );
 154
 155     void addCallbacks();
 156     void delCallbacks();
 157
 158     void UpdateRate();
 159     void UpdateName();
 160     void UpdateStatus();
 161     void UpdateNavigation();
 162     void UpdatePosition();
 163     void UpdateTeletext();
 164     void UpdateArt();
 165     void UpdateInfo();
 166     void UpdateMeta();
 167     void UpdateMeta(input_item_t *);
 168     void UpdateVout();
 169     void UpdateAout();
 170     void UpdateStats();
 171     void UpdateCaching();
 172     void UpdateRecord();
 173     void UpdateProgramEvent();
 174     void UpdateEPG();
 175
 176 public slots:
 177     void setInput( input_thread_t * ); ///< Our controlled input changed
 178     void sliderUpdate( float ); ///< User dragged the slider. We get new pos
 179     /* SpeedRate Rate Management */
 180     void reverse();
 181     void slower();
 182     void faster();
 183     void littlefaster();
 184     void littleslower();
 185     void normalRate();
 186     void setRate( int );
 187     /* Jumping */
 188     void jumpFwd();
 189     void jumpBwd();
 190     /* Menus */
 191     void sectionNext();
 192     void sectionPrev();
 193     void sectionMenu();
 194     /* Teletext */
 195     void telexSetPage( int );          ///< Goto teletext page
 196     void telexSetTransparency( bool ); ///< Transparency on teletext background
 197     void activateTeletext( bool );     ///< Toggle buttons after click
 198     /* A to B Loop */
 199     void setAtoB();
 200
 201 private slots:
 202     void togglePlayPause();
 203     void AtoBLoop( float, int64_t, int );
 204
 205 signals:
 206     /// Send new position, new time and new length
 207     void positionUpdated( float , int64_t, int );
 208     void seekRequested( float pos );
 209     void rateChanged( float );
 210     void nameChanged( const QString& );
 211     /// Used to signal whether we should show navigation buttons
 212     void titleChanged( bool );
 213     void chapterChanged( bool );
 214     /// Statistics are updated
 215     void statisticsUpdated( input_item_t* );
 216     void infoChanged( input_item_t* );
 217     void currentMetaChanged( input_item_t* );
 218     void metaChanged( input_item_t *);
 219     void artChanged( QString );
 220     /// Play/pause status
 221     void statusChanged( int );
 222     void recordingStateChanged( bool );
 223     /// Teletext
 224     void teletextPossible( bool );
 225     void teletextActivated( bool );
 226     void teletextTransparencyActivated( bool );
 227     void newTelexPageSet( int );
 228     /// Advanced buttons
 229     void AtoBchanged( bool, bool );
 230     /// Vout
 231     void voutChanged( bool );
 232     void voutListChanged( vout_thread_t **pp_vout, int i_vout );
 233     /// Other
 234     void synchroChanged();
 235     void bookmarksChanged();
 236     void cachingChanged( float );
 237     /// Program Event changes
 238     void encryptionChanged( bool );
 239     void epgChanged();
 240 };
 241
 242 class MainInputManager : public QObject
 243 {
 244     Q_OBJECT
 245 public:
 246     static MainInputManager *getInstance( intf_thread_t *_p_intf )
 247     {
 248         if( !instance )
 249             instance = new MainInputManager( _p_intf );
 250         return instance;
 251     }
 252     static void killInstance()
 253     {
 254         delete instance;
 255         instance = NULL;
 256     }
 257
 258     input_thread_t *getInput() { return p_input; }
 259     InputManager *getIM() { return im; }
 260     inline input_item_t *currentInputItem()
 261     {
 262         return ( p_input ? input_GetItem( p_input ) : NULL );
 263     }
 264
 265     vout_thread_t* getVout();
 266     aout_instance_t *getAout();
 267
 268 private:
 269     MainInputManager( intf_thread_t * );
 270     virtual ~MainInputManager();
 271
 272     static MainInputManager *instance;
 273
 274     void customEvent( QEvent * );
 275
 276     InputManager            *im;
 277     input_thread_t          *p_input;
 278     intf_thread_t           *p_intf;
 279
 280     void notifyRepeatLoop();
 281 public slots:
 282     void togglePlayPause();
 283     void play();
 284     void pause();
 285     void toggleRandom();
 286     void stop();
 287     void next();
 288     void prev();
 289     void activatePlayQuit( bool );
 290
 291     void loopRepeatLoopStatus();
 292
 293 signals:
 294     void inputChanged( input_thread_t * );
 295     void volumeChanged();
 296     void soundMuteChanged();
 297     void playlistItemAppended( int itemId, int parentId );
 298     void playlistItemRemoved( int itemId );
 299     void randomChanged( bool );
 300     void repeatLoopChanged( int );
 301     void leafBecameParent( input_item_t * );
 302 };
 303
 304 #endif