void Interactor2D::ProcessPostMouseWheelEvent( QWheelEvent* event, RenderView* renderview )
{
RenderView2D* view = ( RenderView2D* )renderview;
view->UpdateAnnotation();
view->Update2DOverlay();
view->RequestRedraw();
view->EmitZooming();
Interactor::ProcessPostMouseWheelEvent( event, renderview );
}
bool Interactor2D::ProcessMouseMoveEvent( QMouseEvent* event, RenderView* renderview )
{
RenderView2D* view = ( RenderView2D* )renderview;
MainWindow* mainwnd = MainWindow::GetMainWindow();
if ( mainwnd->IsEmpty() )
{
return Interactor::ProcessMouseMoveEvent( event, renderview );
}
int posX = event->x();
int posY = event->y();
if ( m_bChangeSlice )
{
double* voxelSize = mainwnd->GetLayerCollection( "MRI" )->GetWorldVoxelSize();
int nPlane = view->GetViewPlane();
double dPixelPer = -0.25;
double dPosDiff = ( ( (int)( dPixelPer * ( posY - m_nDownPosY ) ) ) / dPixelPer -
( (int)( dPixelPer * ( m_nMousePosY - m_nDownPosY ) ) ) / dPixelPer )
* dPixelPer * voxelSize[nPlane];
if ( mainwnd->OffsetSlicePosition( nPlane, dPosDiff ) )
{
m_nMousePosX = posX;
m_nMousePosY = posY;
}
}
else if ( m_bMovingCursor )
{
view->UpdateCursorRASPosition( posX, posY );
view->RequestRedraw();
}
else if ( m_bWindowLevel )
{
QList<Layer*> layers = mainwnd->GetLayerCollection( "MRI" )->GetLayers();
LayerMRI* layer = (LayerMRI*)mainwnd->GetActiveLayer("MRI");
if (layer && (!layer->IsVisible() || layer->GetProperty()->GetColorMap() == LayerPropertyMRI::LUT))
{
layer = NULL;
}
if (layer == NULL)
{
for ( int i = 0; i < layers.size(); i++ )
{
layer = ( LayerMRI*)layers[i];
if ( layer->IsVisible() && layer->GetProperty()->GetColorMap() != LayerPropertyMRI::LUT )
{
break;
}
else
{
layer = NULL;
}
}
}
if ( layer )
{
double scaleX = 0.002;
double scaleY = 0.002;
double w = ( posX - m_nMousePosX ) * scaleX;
double l = ( posY - m_nMousePosY ) * scaleY;
double scaleOverall = layer->GetProperty()->GetMaxValue() -
layer->GetProperty()->GetMinValue();
w *= scaleOverall;
l *= scaleOverall;
switch ( layer->GetProperty()->GetColorMap() )
{
case LayerPropertyMRI::Grayscale:
w += layer->GetProperty()->GetWindow();
l += layer->GetProperty()->GetLevel();
if ( w < 0 )
{
w = 0;
}
layer->GetProperty()->SetWindowLevel(w, l);
break;
case LayerPropertyMRI::Heat:
w += layer->GetProperty()->GetHeatScaleMaxThreshold() - layer->GetProperty()->GetHeatScaleMinThreshold();
l += (layer->GetProperty()->GetHeatScaleMaxThreshold() + layer->GetProperty()->GetHeatScaleMinThreshold())/2;
if ( w < 0 )
{
w = 0;
}
layer->GetProperty()->SetHeatScale( l-w/2, l, l+w/2 );
break;
default:
w += layer->GetProperty()->GetMaxGenericThreshold() - layer->GetProperty()->GetMinGenericThreshold();
l += (layer->GetProperty()->GetMaxGenericThreshold() + layer->GetProperty()->GetMinGenericThreshold())/2;
if ( w < 0 )
{
w = 0;
}
layer->GetProperty()->SetMinMaxGenericThreshold( l-w/2, l+w/2 );
break;
}
}
m_nMousePosX = posX;
m_nMousePosY = posY;
}
else if ( m_bSelecting )
{
view->UpdateSelection( posX, posY );
view->RequestRedraw();
}
else
{
if ( event->buttons() & Qt::MidButton || event->buttons() & Qt::RightButton )
{
view->UpdateAnnotation();
view->Update2DOverlay();
if ( event->buttons() & Qt::RightButton )
{
view->EmitZooming();
}
}
else
{
view->UpdateMouseRASPosition( posX, posY );
}
return Interactor::ProcessMouseMoveEvent( event, renderview );
}
return false;
}
