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/*****************************************************************************
* EPGRuler.cpp: EPGRuler
****************************************************************************
* Copyright © 2009-2010 VideoLAN
* $Id: bd7ccaca7282cb95db9e88ee09fbfc3e6e637dd0 $
*
* Authors: Ludovic Fauvet <etix@l0cal.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#include "EPGRuler.hpp"
class QPaintEvent;
#include <QPainter>
#include <QDateTime>
#include <QPoint>
#include <QRect>
#include <QSize>
#include <QPalette>
#include <QColor>
EPGRuler::EPGRuler( QWidget* parent )
: QWidget( parent )
{
setContentsMargins( 0, 0, 0, 0 );
setMinimumHeight( height() );
setMaximumHeight( height() );
m_offset = 0;
}
void EPGRuler::setScale( double scale )
{
m_scale = scale;
update();
}
void EPGRuler::setStartTime( const QDateTime& startTime )
{
m_startTime = startTime;
update();
}
void EPGRuler::setDuration( int duration )
{
m_duration = duration;
update();
}
void EPGRuler::setOffset( int offset )
{
m_offset = offset;
update();
}
void EPGRuler::paintEvent( QPaintEvent *event )
{
Q_UNUSED( event );
const QSize margin( 0, contentsMargins().top() );
const QSize header( 0, maximumHeight() - contentsMargins().top() );
const int spacing = m_scale * 3600;
QPainter p( this );
QDateTime localStartTime;
localStartTime = m_startTime.addSecs( m_offset / m_scale );
QDateTime diff( localStartTime );
diff.setTime( QTime( localStartTime.time().hour(), 0, 0, 0 ) );
int secondsToHour = localStartTime.secsTo( diff );
/* draw hour blocks, with right bound being hourmark */
QPoint here( secondsToHour * m_scale, margin.height() );
QPoint previous( -1, 0 );
QDateTime current( localStartTime.addSecs( secondsToHour ) );
current = current.addSecs( -3600 );
QColor fillColor;
while ( here.rx() < width() + spacing )
{
QRect area( QPoint( previous.x() + 1, margin.height() ), here );
area.adjust( 0, 0, 0, header.height() );
QString timeString = current.toString( "hh'h'" );
/* Show Day */
if ( current.time().hour() == 0 )
timeString += current.date().toString( " ddd dd" );
if ( m_startTime.date().daysTo( current.date() ) % 2 == 0 )
fillColor = palette().color( QPalette::Window );
else
fillColor = palette().color( QPalette::Dark );
p.fillRect( area, fillColor );
p.drawLine( area.topRight(), area.bottomRight() );
p.drawText( area, Qt::AlignLeft, timeString );
previous = here;
here.rx() += spacing;
current = current.addSecs( 3600 );
}
/* draw current time line */
here.rx() = localStartTime.secsTo( QDateTime::currentDateTime() ) * m_scale;
if ( here.x() <= width() && here.x() >= 0 )
{
p.setPen( QPen( QColor( 255, 0 , 0, 128 ) ) );
p.drawLine( here, QPoint( here.x(), here.y() + header.height() ) );
}
}
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