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/******************************************************************************
*
* Copyright (C) 2002 Hugo PEREIRA <mailto: hugo.pereira@free.fr>
*
* This 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 software 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, see <http://www.gnu.org/licenses/>.
*
*******************************************************************************/
#include "Debug.h"
#include "HistogramWidget.h"
#include "Options.h"
#include "RecordHistogram.h"
#include <QLayout>
#include <QPainter>
#include <QTextStream>
#include <QScrollBar>
#include <algorithm>
//________________________________________________________
RecordHistogram::RecordHistogram( QWidget* parent ):
QWidget( parent ),
Counter( "RecordHistogram" ),
scrollView_( new ScrollArea( this ) )
{
// create vbox layout
QVBoxLayout* layout=new QVBoxLayout();
layout->setMargin(0);
layout->setSpacing(2);
setLayout( layout );
layout->addWidget( scrollView_ );
layout->activate();
histogram().addDataSet( HistogramWidget::DataSet( tr( "generic" ), "FOREGROUND_COLOR" ) );
}
//________________________________________________________
RecordHistogram::ScrollArea::ScrollArea( QWidget* parent ):
QScrollArea( parent ),
Counter( "RecordHistogram::ScrollArea" ),
histogram_( new HistogramWidget( this ) )
{
setBackgroundRole( QPalette::Base );
setVerticalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
setWidget( histogram_ );
connect( horizontalScrollBar(), SIGNAL(valueChanged(int)), histogram_, SLOT(update()) );
}
//________________________________________________________
void RecordHistogram::setValues( const QVector<double>& values )
{
Debug::Throw( "RecordHistogram::updateValue.\n" );
// check array length
if( values.empty() ) return;
histogram().dataSet(0).setValues( values );
scrollArea().viewport()->update();
histogram().update();
}
//________________________________________________________
void RecordHistogram::ScrollArea::resizeEvent( QResizeEvent *event )
{
Debug::Throw( "RecordHistogram::ScrollArea::resizeEvent.\n" );
// resize the scrollview
QScrollArea::resizeEvent( event );
// resize the histogram subclass so that it gets the correct height
histogram().setVisibleHeight( viewport()->height() );
histogram().resize( histogram().width(), event->size().height() );
return;
}
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