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#include <qstatusbar.h>
#include <qlabel.h>
#include <qlayout.h>
#include <qevent.h>
#include <qdatetime.h>
#include <qwt_plot_canvas.h>
#include "panel.h"
#include "plot.h"
#include "mainwindow.h"
MainWindow::MainWindow( QWidget *parent ):
QMainWindow( parent )
{
QWidget *w = new QWidget( this );
d_panel = new Panel( w );
d_plot = new Plot( w );
QHBoxLayout *hLayout = new QHBoxLayout( w );
hLayout->addWidget( d_panel );
hLayout->addWidget( d_plot, 10 );
setCentralWidget( w );
d_frameCount = new QLabel( this );
statusBar()->addWidget( d_frameCount, 10 );
applySettings( d_panel->settings() );
connect( d_panel, SIGNAL( settingsChanged( const Settings & ) ),
this, SLOT( applySettings( const Settings & ) ) );
}
bool MainWindow::eventFilter( QObject *object, QEvent *event )
{
if ( object == d_plot->canvas() && event->type() == QEvent::Paint )
{
static int counter;
static QTime timeStamp;
if ( !timeStamp.isValid() )
{
timeStamp.start();
counter = 0;
}
else
{
counter++;
const double elapsed = timeStamp.elapsed() / 1000.0;
if ( elapsed >= 1 )
{
QString fps;
fps.setNum( qRound( counter / elapsed ) );
fps += " Fps";
d_frameCount->setText( fps );
counter = 0;
timeStamp.start();
}
}
}
return QMainWindow::eventFilter( object, event );
}
void MainWindow::applySettings( const Settings &settings )
{
d_plot->setSettings( settings );
// the canvas might have been recreated
d_plot->canvas()->removeEventFilter( this );
d_plot->canvas()->installEventFilter( this );
}
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