Simple 3D Slicer based image viewer

SimpleView.py

def showSimpleUserInterface(simpleView):

    # Do not store these display settings permanently
    settings = qt.QSettings()
    settings.setValue('MainWindow/RestoreGeometry', not simpleView)

    for toolbar in slicer.util.mainWindow().findChildren('QToolBar'):
        toolbar.setVisible(not simpleView)

    modulePanelDockWidget = slicer.util.mainWindow().findChildren('QDockWidget','PanelDockWidget')[0]
    modulePanelDockWidget.setVisible(not simpleView) 

    layoutManager = slicer.app.layoutManager()
    for sliceViewName in layoutManager.sliceViewNames():
        sliceWidget = layoutManager.sliceWidget(sliceViewName)
        sliceControlWidget = sliceWidget.sliceController()
        sliceControlWidget.setSliceVisible(True)
        pinButton = sliceControlWidget.children()[1].children()[1]
        if simpleView:
            pinButton.hide()
        else:
            pinButton.show()
            
def createSimpleDataBrowser():

    mainWindow = slicer.util.mainWindow()
    dockWidget = qt.QDockWidget("Data browser", mainWindow)
    dockWidget.setFeatures(qt.QDockWidget.DockWidgetClosable + qt.QDockWidget.DockWidgetMovable + qt.QDockWidget.DockWidgetFloatable)

    mainFrame = qt.QFrame(dockWidget)
    mainFrameLayout = qt.QVBoxLayout(mainFrame)

    # Add switch layout buttons
    displayLayout = qt.QHBoxLayout()
    mainFrameLayout.addLayout(displayLayout)
    displayPresets = (
        (slicer.vtkMRMLLayoutNode.SlicerLayoutFourUpView, "LayoutFourUpView.png"),
        (slicer.vtkMRMLLayoutNode.SlicerLayoutOneUpRedSliceView, "LayoutOneUpRedSliceView.png"),
        (slicer.vtkMRMLLayoutNode.SlicerLayoutOneUpYellowSliceView, "LayoutOneUpYellowSliceView.png"),
        (slicer.vtkMRMLLayoutNode.SlicerLayoutOneUpGreenSliceView, "LayoutOneUpGreenSliceView.png"),
        (slicer.vtkMRMLLayoutNode.SlicerLayoutOneUp3DView, "LayoutOneUp3DView.png"),
        )
    for (layoutId, iconName) in displayPresets:
        switchLayoutButton = qt.QPushButton("")
        switchLayoutButton.setIcon(qt.QIcon(":Icons/"+iconName))
        displayLayout.addWidget(switchLayoutButton, 0, 0)
        switchLayoutButton.connect('clicked()', lambda layoutId=layoutId: slicer.app.layoutManager().setLayout(layoutId))
    
    # Add data tree
    dataTreeWidget = slicer.qMRMLSubjectHierarchyTreeView(mainFrame)
    dataTreeWidget.setMRMLScene(slicer.mrmlScene)
    dataTreeWidget.setColumnHidden(dataTreeWidget.model().idColumn, True)
    dataTreeWidget.setColumnHidden(dataTreeWidget.model().transformColumn, True)
    mainFrameLayout.addWidget(dataTreeWidget)

    dockWidget.setWidget(mainFrame)
    mainWindow.addDockWidget(qt.Qt.LeftDockWidgetArea, dockWidget)

# Load a scene and show it in simple view:
showSimpleUserInterface(True)
createSimpleDataBrowser()

# Example for loading a scene from file:
# slicer.util.loadScene(r'c:\Users\msliv\OneDrive\Documents\2018-03-29-Scene.mrb')