Hi, It seems like the trick could be to use the code path in QmitkMultiWidgetDecorationManager::DecorationPreferenceChanged(). That is, having a preference node called “DepartmentLogo” and probably set it already in your window advisor class. I hope these vague hints already help. :-)
Best, Stefan From: PERERA I BEL, ENRIC [mailto:enric.per...@upf.edu] Sent: Thursday, June 17, 2021 10:04 AM To: mitk-users@lists.sourceforge.net Subject: [mitk-users] Displaying department logo in the render window. Hello, I am trying to display a logo in the 3D render window of a qmitkStdMultiWidget, similarly to what is done in the MitkWorkbench with the "MITK|dkfz" logo. I found in QmitkMultiWidgetDecorationManager that I should the use mitkLogoAnnotation class. However, I haven't been able to display the logo on the render window. Here is the code: mitk::LogoAnnotation::Pointer logoAnnotation = mitk::LogoAnnotation::New(); logoAnnotation->SetOpacity(1); mitk::Point2D offset; offset.Fill(0.03); logoAnnotation->SetOffsetVector(offset); logoAnnotation->SetRelativeSize(0.25); logoAnnotation->SetCornerPosition(1); logoAnnotation->SetVisibility(true); QImage *qimage = new QImage(qPrintable(":/src/MyLogo.png")); vtkSmartPointer<vtkQImageToImageSource> qImageToVtk; qImageToVtk = vtkSmartPointer<vtkQImageToImageSource>::New(); qImageToVtk->SetQImage(qimage); qImageToVtk->Update(); vtkSmartPointer<vtkImageData> vtkLogo = qImageToVtk->GetOutput(); std::shared_ptr<QmitkRenderWindowWidget> renderWindowWidget = ui->QstdMultiWidget->GetLastRenderWindowWidget(); if (nullptr != renderWindowWidget && logoAnnotation.IsNotNull()) { mitk::ManualPlacementAnnotationRenderer::AddAnnotation(logoAnnotation.GetPointer(), renderWindowWidget->GetRenderWindow()->GetRenderer()); logoAnnotation->SetLogoImage(vtkLogo); mitk::BaseRenderer *renderer = mitk::BaseRenderer::GetInstance(renderWindowWidget->GetRenderWindow()->GetVtkRenderWindow()); logoAnnotation->Update(renderer); renderWindowWidget->RequestUpdate(); } The image is loaded successfully (I checked it by making a mitkImage from vtkLogo and adding it to the data storage), and both the renderWindowWidget and the logoAnnotation are not null/nullptr since the code inside the if condition is executed. Any idea on how I can solve this? I have tried with different offsets, relative sizes and corner positions. I also tried to call AddToBaseRenderer and AddToRenderer. It seems to me that the logoAnnotation is not added to the renderer. Thank you, Enric
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