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