vtk6: Fix the preview in slicing tab and supports

Apparently, we can't use AddInputData anymore either, so we have
to manually manage the inputs to AppendPolyData and set each input
connection manually for it to work.

monkeyprintModelHandling.py

@@ -939,6 +939,8 @@ def __init__(self, filename, settings, programSettings, console=None):
 			# Create supports polydata.
 			self.supports = vtk.vtkAppendPolyData()
 			self.supports.AddObserver('ErrorEvent', self.errorObserver)
+			if vtk.VTK_MAJOR_VERSION >= 6:
+				self.supports.UserManagedInputsOn()
 
 			# Create bottom plate polydata. Edge length 1 mm, place outside of build volume by 1 mm.	
 			self.bottomPlate = vtk.vtkCubeSource()
@@ -984,9 +986,11 @@ def __init__(self, filename, settings, programSettings, console=None):
 				self.combinedClipModels.AddInput(self.clipFilterSupports.GetOutput())
 				self.combinedClipModels.AddInput(self.clipFilterBottomPlate.GetOutput())
 			else:
-				self.combinedClipModels.AddInputData(self.clipFilterModel.GetOutput())
-				self.combinedClipModels.AddInputData(self.clipFilterSupports.GetOutput())
-				self.combinedClipModels.AddInputData(self.clipFilterBottomPlate.GetOutput())
+				self.combinedClipModels.UserManagedInputsOn()
+				self.combinedClipModels.SetNumberOfInputs(3)
+				self.combinedClipModels.SetInputConnectionByNumber(0, self.clipFilterModel.GetOutputPort())
+				self.combinedClipModels.SetInputConnectionByNumber(1, self.clipFilterSupports.GetOutputPort())
+				self.combinedClipModels.SetInputConnectionByNumber(2, self.clipFilterBottomPlate.GetOutputPort())
 			# Create cutting filter for model.
 			self.cuttingFilterModel = vtk.vtkCutter()
 			self.cuttingFilterModel.SetCutFunction(self.cuttingPlane)
@@ -1036,9 +1040,11 @@ def __init__(self, filename, settings, programSettings, console=None):
 				self.combinedCutlines.AddInput(self.sectionStripperSupports.GetOutput())
 				self.combinedCutlines.AddInput(self.sectionStripperBottomPlate.GetOutput())
 			else:
-				self.combinedCutlines.AddInputData(self.sectionStripperModel.GetOutput())
-				self.combinedCutlines.AddInputData(self.sectionStripperSupports.GetOutput())
-				self.combinedCutlines.AddInputData(self.sectionStripperBottomPlate.GetOutput())
+				self.combinedCutlines.UserManagedInputsOn()
+				self.combinedCutlines.SetNumberOfInputs(4)
+				self.combinedCutlines.SetInputConnectionByNumber(0, self.sectionStripperModel.GetOutputPort())
+				self.combinedCutlines.SetInputConnectionByNumber(1, self.sectionStripperSupports.GetOutputPort())
+				self.combinedCutlines.SetInputConnectionByNumber(2, self.sectionStripperBottomPlate.GetOutputPort())
 
 			# Create a small cone to have at least one input
 			# to the slice line vtkAppendPolyData in case no
@@ -1051,7 +1057,7 @@ def __init__(self, filename, settings, programSettings, console=None):
 			if vtk.VTK_MAJOR_VERSION <= 5:
 				self.combinedCutlines.AddInput(cone.GetOutput())
 			else:
-				self.combinedCutlines.AddInputData(cone.GetOutput())
+				self.combinedCutlines.SetInputConnectionByNumber(3, cone.GetOutputPort())
 
 			# Bounding box. Create cube and set outline filter.
 			self.modelBoundingBox = vtk.vtkCubeSource()
@@ -1408,7 +1414,12 @@ def updateSupports(self):
 			self.updateOverhang()
 
 			# Clear all inputs from cones data.
-			self.supports.RemoveAllInputs()
+			if vtk.VTK_MAJOR_VERSION <= 5:
+				self.supports.RemoveAllInputs()
+			else:
+				support_inputs = 1
+				self.supports.SetNumberOfInputs(0)
+				self.supports.SetNumberOfInputs(support_inputs)
 
 			# Create one super small cone to have at least one input
 			# to the vtkAppendPolyData in case no model intersections
@@ -1422,7 +1433,7 @@ def updateSupports(self):
 			if vtk.VTK_MAJOR_VERSION <= 5:
 				self.supports.AddInput(cone.GetOutput())
 			else:
-				self.supports.AddInputData(cone.GetOutput())
+				self.supports.SetInputConnectionByNumber(0, cone.GetOutputPort())
 
 	#TODO: Add support regions using	overhangRegionFilter.Update();
 
@@ -1551,14 +1562,16 @@ def updateSupports(self):
 						if vtk.VTK_MAJOR_VERSION <= 5:
 							self.supports.AddInput(coneGeomFilter.GetOutput())
 						else:
-							self.supports.AddInputData(coneGeomFilter.GetOutput())
+							support_inputs += 2
+							self.supports.SetNumberOfInputs(support_inputs)
+							self.supports.SetInputConnectionByNumber(support_inputs - 2, coneGeomFilter.GetOutputPort())
 						# Delete the cone. Vtk delete() method does not work in python because of garbage collection.
 						del cone
 						# Append the cylinder to the cones polydata.
 						if vtk.VTK_MAJOR_VERSION <= 5:
 							self.supports.AddInput(cylinderGeomFilter.GetOutput())
 						else:
-							self.supports.AddInputData(cylinderGeomFilter.GetOutput())
+							self.supports.SetInputConnectionByNumber(support_inputs - 1, cylinderGeomFilter.GetOutputPort())
 						del cylinder
 		#				i += 1
 		#	print "Created " + str(i) + " supports."