chartview.cpp

#include "chartview.h"

ChartView::ChartView(QWidget *parent)
    : QChartView(parent)
{}

void ChartView::keyPressEvent(QKeyEvent *event)
{
    switch (event->key()) {
    case Qt::Key_Plus: chart()->zoomIn(); break;
    case Qt::Key_Minus: chart()->zoomOut(); break;
    case Qt::Key_Left: chart()->scroll(-1.0, 0); break;
    case Qt::Key_Right: chart()->scroll(1.0, 0); break;
    case Qt::Key_Up: chart()->scroll(0, 1.0); break;
    case Qt::Key_Down: chart()->scroll(0, -1.0); break;
    default: QGraphicsView::keyPressEvent(event); break;
    }
}