C++ (Cpp) MapView::setMatrix Beispiele

Beispiel #1

Datei: SampleLapViewer.cpp Projekt: xaviermawet/EcoManager2013

void SampleLapViewer::zoomView(int increment)
{
    QMatrix scaling;
    MapView* currentView = dynamic_cast<MapView*>(
                this->ui->lapsViewStack->currentWidget());

    if (currentView == NULL)
        return;

    this->_zoomLevel += increment;
    qreal scale =  qPow(2, this->_zoomLevel / 10.0);
    scaling.scale(scale, scale);
    currentView->setMatrix(scaling);
}