modules/gui/qt4/components/epg/EPGWidget.cpp

   1 /*****************************************************************************
   2  * EPGWidget.h : EPGWidget
   3  ****************************************************************************
   4  * Copyright © 2009-2010 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Ludovic Fauvet <etix@l0cal.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #ifdef HAVE_CONFIG_H
  25 # include <config.h>
  26 #endif
  27
  28 #include "EPGWidget.hpp"
  29
  30 #include <QVBoxLayout>
  31 #include <QScrollBar>
  32 #include <QLabel>
  33 #include <QStringList>
  34 #include "qt4.hpp"
  35
  36 EPGWidget::EPGWidget( QWidget *parent ) : QWidget( parent )
  37 {
  38     b_input_type_known = false;
  39     m_rulerWidget = new EPGRuler( this );
  40     m_epgView = new EPGView( this );
  41     m_channelsWidget = new EPGChannels( this, m_epgView );
  42
  43     m_channelsWidget->setMinimumWidth( 100 );
  44
  45     m_epgView->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Expanding );
  46     setZoom( 1 );
  47
  48     QGridLayout* layout = new QGridLayout( this );
  49     layout->addWidget( m_rulerWidget, 0, 1 );
  50     layout->addWidget( m_channelsWidget, 1, 0 );
  51     layout->addWidget( m_epgView, 1, 1 );
  52     layout->setSpacing( 0 );
  53     setLayout( layout );
  54
  55     connect( m_epgView, SIGNAL( startTimeChanged(QDateTime) ),
  56              m_rulerWidget, SLOT( setStartTime(QDateTime) ) );
  57     connect( m_epgView, SIGNAL( durationChanged(int) ),
  58              m_rulerWidget, SLOT( setDuration(int) ) );
  59     connect( m_epgView->horizontalScrollBar(), SIGNAL( valueChanged(int) ),
  60              m_rulerWidget, SLOT( setOffset(int) ) );
  61     connect( m_epgView->verticalScrollBar(), SIGNAL( valueChanged(int) ),
  62              m_channelsWidget, SLOT( setOffset(int) ) );
  63     connect( m_epgView, SIGNAL( itemFocused(EPGItem*)),
  64              this, SIGNAL(itemSelectionChanged(EPGItem*)) );
  65     CONNECT( m_epgView, channelAdded(QString), m_channelsWidget, addChannel(QString) );
  66     CONNECT( m_epgView, channelRemoved(QString), m_channelsWidget, removeChannel(QString) );
  67 }
  68
  69 void EPGWidget::reset()
  70 {
  71     m_epgView->reset();
  72     m_epgView->updateDuration();
  73     m_epgView->updateStartTime();
  74 }
  75
  76 void EPGWidget::setZoom( int level )
  77 {
  78     double scale = (double)level / 20;
  79     m_epgView->setScale( scale );
  80     m_rulerWidget->setScale( scale );
  81 }
  82
  83 void EPGWidget::updateEPG( vlc_epg_t **pp_epg, int i_epg, uint8_t i_input_type )
  84 {
  85     /* flush our EPG data if input type has changed */
  86     if ( b_input_type_known && i_input_type != i_event_source_type ) m_epgView->reset();
  87     i_event_source_type = i_input_type;
  88     b_input_type_known = true;
  89
  90     m_epgView->cleanup(); /* expire items and flags */
  91
  92     for ( int i = 0; i < i_epg; ++i )
  93     {
  94         vlc_epg_t *p_epg = pp_epg[i];
  95
  96         /* Read current epg events from libvlc and try to insert them */
  97         for ( int j = 0; j < p_epg->i_event; ++j )
  98         {
  99             vlc_epg_event_t *p_event = p_epg->pp_event[j];
 100             m_epgView->addEPGEvent( p_event, qfu( p_epg->psz_name ),
 101                                     ( p_epg->p_current == p_event ) );
 102         }
 103     }
 104
 105     // Update the global duration and start time.
 106     m_epgView->updateDuration();
 107     m_epgView->updateStartTime();
 108 }