void KisCanvasController::zoomRelativeToPoint(const QPoint &widgetPoint, qreal zoomLevel)
{
const QPoint mousePos(m_d->coordinatesConverter->widgetToFlake(widgetPoint).toPoint());
QRectF oldWidgetRect = m_d->coordinatesConverter->widgetRectInFlakePixels();
QPointF oldCenter = oldWidgetRect.center();
const QPointF newCenter = mousePos - (1.0 / zoomLevel) * (mousePos - oldCenter);
zoomBy(newCenter.toPoint(), zoomLevel);
}
void ModelShow::mouseMoveEvent(QMouseEvent *event)
{
int dx=event->x()-lastPos.x();
int dy=event->y()-lastPos.y();
if(event->buttons() & Qt::LeftButton){
rotateBy(-8*dy,8*dx,0);
}
else if(event->buttons() & Qt::RightButton){
zoomBy(-0.01*dx);
}
else if(event->buttons() & Qt::MiddleButton){
translateBy(0.01*dx,0.01*dy,0);
}
lastPos=event->pos();
}
/*!
* \brief IPProcessGrid::zoomOut
*/
void IPProcessGrid::zoomOut()
{
zoomBy(-0.1f);
}
/*!
* \brief IPProcessGrid::zoomIn
*/
void IPProcessGrid::zoomIn()
{
zoomBy(0.1f);
}
