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  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * version 2 as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  20  *
  21  */
  22
  23
  24 #include "ControllerView.h"
  25
  26 #include <Autolock.h>
  27 #include <Message.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30
  31 #include "Controller.h"
  32 #include "Playlist.h"
  33 #include "PlaylistObserver.h"
  34
  35
  36 ControllerView::ControllerView(BRect frame, Controller* controller,
  37                 Playlist* playlist)
  38         :
  39         TransportControlGroup(frame, true, true, false),
  40         fController(controller),
  41         fPlaylist(playlist),
  42         fPlaylistObserver(new PlaylistObserver(this))
  43 {
  44         fPlaylist->AddListener(fPlaylistObserver);
  45 }
  46
  47
  48 ControllerView::~ControllerView()
  49 {
  50         fPlaylist->RemoveListener(fPlaylistObserver);
  51         delete fPlaylistObserver;
  52 }
  53
  54
  55 void
  56 ControllerView::AttachedToWindow()
  57 {
  58         TransportControlGroup::AttachedToWindow();
  59 }
  60
  61
  62 void
  63 ControllerView::Draw(BRect updateRect)
  64 {
  65         TransportControlGroup::Draw(updateRect);
  66 }
  67
  68
  69 void
  70 ControllerView::MessageReceived(BMessage* message)
  71 {
  72         switch (message->what) {
  73                 case MSG_PLAYLIST_ITEM_ADDED:
  74                 case MSG_PLAYLIST_ITEM_REMOVED:
  75                 case MSG_PLAYLIST_ITEMS_SORTED:
  76                 case MSG_PLAYLIST_CURRENT_ITEM_CHANGED:
  77                         _CheckSkippable();
  78                         break;
  79
  80                 case MSG_PLAYLIST_IMPORT_FAILED:
  81                         break;
  82
  83                 default:
  84                         TransportControlGroup::MessageReceived(message);
  85         }
  86 }
  87
  88
  89 // #pragma mark -
  90
  91
  92 void
  93 ControllerView::TogglePlaying()
  94 {
  95         BAutolock _(fPlaylist);
  96         if (fPlaylist->CurrentItemIndex() == fPlaylist->CountItems() - 1
  97                 && Position() == 1.0) {
  98                 // Reached end of playlist and end of last item
  99                 // -> start again from the first item.
 100                 fPlaylist->SetCurrentItemIndex(0, true);
 101         } else
 102                 fController->TogglePlaying();
 103 }
 104
 105
 106 void
 107 ControllerView::Stop()
 108 {
 109         fController->Stop();
 110 }
 111
 112
 113 void
 114 ControllerView::Rewind()
 115 {
 116         // TODO: make it so this function is called repeatedly
 117         //printf("ControllerView::Rewind()\n");
 118 }
 119
 120
 121 void
 122 ControllerView::Forward()
 123 {
 124         // TODO: make it so this function is called repeatedly
 125         //printf("ControllerView::Forward()\n");
 126 }
 127
 128
 129 void
 130 ControllerView::SkipBackward()
 131 {
 132         BAutolock _(fPlaylist);
 133         int32 index = fPlaylist->CurrentItemIndex() - 1;
 134         if (index < 0)
 135                 index = 0;
 136         fPlaylist->SetCurrentItemIndex(index, true);
 137 }
 138
 139
 140 void
 141 ControllerView::SkipForward()
 142 {
 143         BAutolock _(fPlaylist);
 144         int32 index = fPlaylist->CurrentItemIndex() + 1;
 145         if (index >= fPlaylist->CountItems())
 146                 index = fPlaylist->CountItems() - 1;
 147         fPlaylist->SetCurrentItemIndex(index, true);
 148 }
 149
 150
 151 void
 152 ControllerView::VolumeChanged(float value)
 153 {
 154         fController->SetVolume(value);
 155 }
 156
 157
 158 void
 159 ControllerView::ToggleMute()
 160 {
 161         fController->ToggleMute();
 162 }
 163
 164
 165 void
 166 ControllerView::PositionChanged(float value)
 167 {
 168         // 0.0 ... 1.0
 169         fController->SetPosition(value);
 170 }
 171
 172
 173 // #pragma mark -
 174
 175
 176 void
 177 ControllerView::_CheckSkippable()
 178 {
 179         BAutolock _(fPlaylist);
 180
 181         bool canSkipNext, canSkipPrevious;
 182         fPlaylist->GetSkipInfo(&canSkipPrevious, &canSkipNext);
 183         SetSkippable(canSkipPrevious, canSkipNext);
 184 }