src/apps/mediaplayer/ControllerView.cpp

   1 /*
   2  * Controller.cpp - Media Player for the Haiku Operating System
   3  *
   4  * Copyright (C) 2006 Marcus Overhagen <marcus@overhagen.de>
   5  * Copyright (C) 2007 Stephan Aßmus <superstippi@gmx.de>
   6  * Copyright (C) 2008-2009 Fredrik Modéen      <[FirstName]@[LastName].se> (MIT ok)
   7  *
   8  * Released under the terms of the MIT license.
   9  */
  10
  11
  12 #include "ControllerView.h"
  13
  14 #include <Autolock.h>
  15 #include <Message.h>
  16 #include <stdio.h>
  17 #include <string.h>
  18
  19 #include "Controller.h"
  20 #include "Playlist.h"
  21 #include "PlaylistObserver.h"
  22
  23
  24 ControllerView::ControllerView(BRect frame, Controller* controller,
  25                 Playlist* playlist)
  26         :
  27         TransportControlGroup(frame, true, true, false),
  28         fController(controller),
  29         fPlaylist(playlist),
  30         fPlaylistObserver(new PlaylistObserver(this))
  31 {
  32         fPlaylist->AddListener(fPlaylistObserver);
  33 }
  34
  35
  36 ControllerView::~ControllerView()
  37 {
  38         fPlaylist->RemoveListener(fPlaylistObserver);
  39         delete fPlaylistObserver;
  40 }
  41
  42
  43 void
  44 ControllerView::AttachedToWindow()
  45 {
  46         TransportControlGroup::AttachedToWindow();
  47 }
  48
  49
  50 void
  51 ControllerView::Draw(BRect updateRect)
  52 {
  53         TransportControlGroup::Draw(updateRect);
  54 }
  55
  56
  57 void
  58 ControllerView::MessageReceived(BMessage* message)
  59 {
  60         switch (message->what) {
  61                 case MSG_PLAYLIST_ITEM_ADDED:
  62                 case MSG_PLAYLIST_ITEM_REMOVED:
  63                 case MSG_PLAYLIST_ITEMS_SORTED:
  64                 case MSG_PLAYLIST_CURRENT_ITEM_CHANGED:
  65                         _CheckSkippable();
  66                         break;
  67
  68                 case MSG_PLAYLIST_IMPORT_FAILED:
  69                         break;
  70
  71                 default:
  72                         TransportControlGroup::MessageReceived(message);
  73         }
  74 }
  75
  76
  77 // #pragma mark -
  78
  79
  80 void
  81 ControllerView::TogglePlaying()
  82 {
  83         BAutolock _(fPlaylist);
  84         if (fPlaylist->CurrentItemIndex() == fPlaylist->CountItems() - 1
  85                 && Position() == 1.0) {
  86                 // Reached end of playlist and end of last item
  87                 // -> start again from the first item.
  88                 fPlaylist->SetCurrentItemIndex(0, true);
  89         } else
  90                 fController->TogglePlaying();
  91 }
  92
  93
  94 void
  95 ControllerView::Stop()
  96 {
  97         fController->Stop();
  98 }
  99
 100
 101 void
 102 ControllerView::Rewind()
 103 {
 104         // TODO: make it so this function is called repeatedly
 105         //printf("ControllerView::Rewind()\n");
 106 }
 107
 108
 109 void
 110 ControllerView::Forward()
 111 {
 112         // TODO: make it so this function is called repeatedly
 113         //printf("ControllerView::Forward()\n");
 114 }
 115
 116
 117 void
 118 ControllerView::SkipBackward()
 119 {
 120         BAutolock _(fPlaylist);
 121         int32 index = fPlaylist->CurrentItemIndex() - 1;
 122         if (index < 0)
 123                 index = 0;
 124         fPlaylist->SetCurrentItemIndex(index, true);
 125 }
 126
 127
 128 void
 129 ControllerView::SkipForward()
 130 {
 131         BAutolock _(fPlaylist);
 132         int32 index = fPlaylist->CurrentItemIndex() + 1;
 133         if (index >= fPlaylist->CountItems())
 134                 index = fPlaylist->CountItems() - 1;
 135         fPlaylist->SetCurrentItemIndex(index, true);
 136 }
 137
 138
 139 void
 140 ControllerView::VolumeChanged(float value)
 141 {
 142         fController->SetVolume(value);
 143 }
 144
 145
 146 void
 147 ControllerView::ToggleMute()
 148 {
 149         fController->ToggleMute();
 150 }
 151
 152
 153 void
 154 ControllerView::PositionChanged(float value)
 155 {
 156         // 0.0 ... 1.0
 157         fController->SetPosition(value);
 158 }
 159
 160
 161 // #pragma mark -
 162
 163
 164 void
 165 ControllerView::_CheckSkippable()
 166 {
 167         BAutolock _(fPlaylist);
 168
 169         bool canSkipNext, canSkipPrevious;
 170         fPlaylist->GetSkipInfo(&canSkipPrevious, &canSkipNext);
 171         SetSkippable(canSkipPrevious, canSkipNext);
 172 }