src/panels/information/phononwidget.cpp

   1 /*  This file is part of the KDE project
   2     Copyright (C) 2007 Matthias Kretz <kretz@kde.org>
   3
   4     This program is free software; you can redistribute it and/or
   5     modify it under the terms of the GNU General Public License as
   6     published by the Free Software Foundation; either version 2 of
   7     the License, or (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17     02110-1301, USA.
  18
  19 */
  20
  21 #include "phononwidget.h"
  22
  23 #include <Phonon/Global>
  24 #include <Phonon/MediaObject>
  25 #include <Phonon/SeekSlider>
  26 #include <Phonon/VideoPlayer>
  27 #include <QtGui/QVBoxLayout>
  28 #include <QtGui/QHBoxLayout>
  29 #include <QtGui/QShowEvent>
  30 #include <QtGui/QToolButton>
  31 #include <kicon.h>
  32 #include <kurl.h>
  33 #include <klocale.h>
  34
  35 PhononWidget::PhononWidget(QWidget *parent)
  36     : QWidget(parent),
  37     m_mode(Audio),
  38     m_url(),
  39     m_playButton(0),
  40     m_stopButton(0),
  41     m_media(0),
  42     m_seekSlider(0),
  43     m_videoPlayer(0)
  44 {
  45 }
  46
  47 void PhononWidget::setUrl(const KUrl &url)
  48 {
  49     if (m_url != url) {
  50         stop(); // emits playingStopped() signal
  51         m_url = url;
  52         m_videoPlayer->hide();
  53     }
  54 }
  55
  56 KUrl PhononWidget::url() const
  57 {
  58     return m_url;
  59 }
  60
  61 void PhononWidget::setMode(Mode mode)
  62 {
  63     if (m_mode != mode) {
  64         stop(); // emits playingStopped() signal
  65
  66         m_mode = mode;
  67         if (m_mode == Audio) {
  68             m_videoPlayer->hide();
  69             m_media = 0;
  70         }
  71     }
  72 }
  73
  74 PhononWidget::Mode PhononWidget::mode() const
  75 {
  76     return m_mode;
  77 }
  78
  79 void PhononWidget::showEvent(QShowEvent *event)
  80 {
  81     if (event->spontaneous()) {
  82         QWidget::showEvent(event);
  83         return;
  84     }
  85
  86     if (m_playButton == 0) {
  87         QVBoxLayout *topLayout = new QVBoxLayout(this);
  88         topLayout->setMargin(0);
  89         topLayout->setSpacing(0);
  90         QHBoxLayout *controlsLayout = new QHBoxLayout(this);
  91         controlsLayout->setMargin(0);
  92         controlsLayout->setSpacing(0);
  93
  94         m_playButton = new QToolButton(this);
  95         m_stopButton = new QToolButton(this);
  96         m_seekSlider = new Phonon::SeekSlider(this);
  97         m_videoPlayer = new Phonon::VideoPlayer(Phonon::VideoCategory, this);
  98         m_videoPlayer->hide();
  99
 100         controlsLayout->addWidget(m_playButton);
 101         controlsLayout->addWidget(m_stopButton);
 102         controlsLayout->addWidget(m_seekSlider);
 103
 104         topLayout->addWidget(m_videoPlayer);
 105         topLayout->addLayout(controlsLayout);
 106
 107         m_playButton->setToolTip(i18n("play"));
 108         m_playButton->setIconSize(QSize(16, 16));
 109         m_playButton->setIcon(KIcon("media-playback-start"));
 110         connect(m_playButton, SIGNAL(clicked()), this, SLOT(play()));
 111
 112         m_stopButton->setToolTip(i18n("stop"));
 113         m_stopButton->setIconSize(QSize(16, 16));
 114         m_stopButton->setIcon(KIcon("media-playback-stop"));
 115         m_stopButton->hide();
 116         connect(m_stopButton, SIGNAL(clicked()), this, SLOT(stop()));
 117
 118         m_seekSlider->setIconVisible(false);
 119     }
 120 }
 121
 122 void PhononWidget::hideEvent(QHideEvent *event)
 123 {
 124     QWidget::hideEvent(event);
 125     if (!event->spontaneous()) {
 126         stop();
 127         if (m_videoPlayer != 0) {
 128             m_videoPlayer->hide();
 129         }
 130     }
 131 }
 132
 133 void PhononWidget::stateChanged(Phonon::State newstate)
 134 {
 135     setUpdatesEnabled(false);
 136     switch (newstate) {
 137     case Phonon::PlayingState:
 138     case Phonon::BufferingState:
 139         m_stopButton->show();
 140         m_playButton->hide();
 141         break;
 142     default:
 143         m_stopButton->hide();
 144         m_playButton->show();
 145         break;
 146     }
 147     setUpdatesEnabled(true);
 148 }
 149
 150 void PhononWidget::play()
 151 {
 152     switch (m_mode) {
 153     case Audio:
 154         if (m_media == 0) {
 155             m_media = Phonon::createPlayer(Phonon::MusicCategory, m_url);
 156             m_media->setParent(this);
 157         }
 158         m_media->setCurrentSource(m_url);
 159         break;
 160
 161     case Video:
 162         m_videoPlayer->show();
 163         m_videoPlayer->play(m_url);
 164         m_media = m_videoPlayer->mediaObject();
 165         break;
 166
 167     default:
 168         break;
 169     }
 170
 171     Q_ASSERT(m_media != 0);
 172     connect(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)),
 173             this, SLOT(stateChanged(Phonon::State)));
 174     m_seekSlider->setMediaObject(m_media);
 175
 176     emit playingStarted();
 177 }
 178
 179 void PhononWidget::stop()
 180 {
 181     if (m_media != 0) {
 182         m_media->stop();
 183         disconnect(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)),
 184                    this, SLOT(stateChanged(Phonon::State)));
 185         emit playingStopped();
 186
 187         m_stopButton->hide();
 188         m_playButton->show();
 189     }
 190 }