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