void ZoomTool::wheelEvent(QWheelEvent *event)
{
if (event->orientation() != Qt::Vertical)
return;
Qt::KeyboardModifier smoothZoomModifier = Qt::ControlModifier;
if (event->modifiers() & smoothZoomModifier) {
int numDegrees = event->delta() / 8;
m_currentScale += m_smoothZoomMultiplier * (numDegrees / 15.0f);
scaleView(view()->mapToScene(m_mousePos));
} else if (!event->modifiers()) {
if (event->delta() > 0) {
m_currentScale = nextZoomScale(ZoomIn);
} else if (event->delta() < 0) {
m_currentScale = nextZoomScale(ZoomOut);
}
scaleView(view()->mapToScene(m_mousePos));
}
}
void ZoomTool::zoomOut()
{
m_currentScale = nextZoomScale(ZoomOut);
scaleView(view()->mapToScene(m_mousePos));
}
void InspectTool::zoomOut()
{
qreal newScale = nextZoomScale(ZoomOut);
scaleView(newScale / m_contentItem->scale(), m_mousePosition, m_mousePosition);
}
