Method mouseMoveEvent

Gui/DopeSheetView.cpp:3538–3582

} // DopeSheetView::mousePressEvent

void
DopeSheetView::mouseMoveEvent(QMouseEvent *e)
{
    running_in_main_thread();

    QPointF mouseZoomCoords = _imp->zoomContext.toZoomCoordinates( e->x(), e->y() );

    if (e->buttons() == Qt::NoButton) {
        setCursor( _imp->getCursorDuringHover( e->pos() ) );
    } else if (_imp->eventState == DopeSheetView::esZoomingView) {
        _imp->zoomOrPannedSinceLastFit = true;

        int deltaX = 2 * ( e->x() - _imp->lastPosOnMouseMove.x() );
        double scaleFactorX = std::pow( NATRON_WHEEL_ZOOM_PER_DELTA, deltaX);
        QPointF zoomCenter = _imp->zoomContext.toZoomCoordinates( _imp->lastPosOnMousePress.x(),
                                                                  _imp->lastPosOnMousePress.y() );

        // Alt + Wheel: zoom time only, keep point under mouse
        _imp->zoomContext.zoomx(zoomCenter.x(), zoomCenter.y(), scaleFactorX);

        redraw();

        // Synchronize the dope sheet editor and opened viewers
        if ( _imp->gui->isTripleSyncEnabled() ) {
            _imp->updateCurveWidgetFrameRange();
            _imp->gui->centerOpenedViewersOn( _imp->zoomContext.left(), _imp->zoomContext.right() );
        }
    } else if ( buttonDownIsLeft(e) ) {
        _imp->onMouseLeftButtonDrag(e);
    } else if ( buttonDownIsMiddle(e) ) {
        double dx = _imp->zoomContext.toZoomCoordinates( _imp->lastPosOnMouseMove.x(),
                                                         _imp->lastPosOnMouseMove.y() ).x() - mouseZoomCoords.x();
        _imp->zoomContext.translate(dx, 0);

        redraw();

        // Synchronize the curve editor and opened viewers
        if ( _imp->gui->isTripleSyncEnabled() ) {
            _imp->updateCurveWidgetFrameRange();
            _imp->gui->centerOpenedViewersOn( _imp->zoomContext.left(), _imp->zoomContext.right() );
        }
    }

    _imp->lastPosOnMouseMove = e->pos();
} // DopeSheetView::mouseMoveEvent

void
DopeSheetView::mouseReleaseEvent(QMouseEvent *e)