From 090649639c1d312f1fd90b0cd19920ca0ec21886 Mon Sep 17 00:00:00 2001
From: rnv <rnv@opencascade.com>
Date: Mon, 13 Jul 2020 14:45:26 +0300
Subject: [PATCH] Fix for '#17888 [CEA 17919] VTK Viewer - Scaling'.

---
 src/OBJECT/GEOM_Actor.cxx       | 16 +++++++++++++
 src/OBJECT/GEOM_Actor.h         |  5 ++++
 src/OBJECT/GEOM_DeviceActor.cxx | 41 ++++++++++++++++++++++-----------
 src/OBJECT/GEOM_DeviceActor.h   |  8 ++++++-
 4 files changed, 56 insertions(+), 14 deletions(-)

diff --git a/src/OBJECT/GEOM_Actor.cxx b/src/OBJECT/GEOM_Actor.cxx
index ce8b852a4..1b782df45 100644
--- a/src/OBJECT/GEOM_Actor.cxx
+++ b/src/OBJECT/GEOM_Actor.cxx
@@ -1166,3 +1166,19 @@ void GEOM_Actor::SetWidth(const int width) {
 int GEOM_Actor::GetWidth() const {
   return (int)myIsolatedEdgeActor->GetProperty()->GetLineWidth();
 }
+
+void GEOM_Actor::SetTransform(VTKViewer_Transform* theTransform)
+{
+  Superclass::SetTransform(theTransform);
+
+  myStandaloneVertexActor->SetTransform(theTransform);
+  myStandaloneVertexActor->SetTransform(theTransform);
+  myIsolatedEdgeActor->SetTransform(theTransform);
+  myOneFaceEdgeActor->SetTransform(theTransform);
+  mySharedEdgeActor->SetTransform(theTransform);
+  myWireframeFaceActor->SetTransform(theTransform);
+  myShadingFaceActor->SetTransform(theTransform);
+  myHighlightActor->SetTransform(theTransform);
+
+  Modified();
+}
diff --git a/src/OBJECT/GEOM_Actor.h b/src/OBJECT/GEOM_Actor.h
index 48ec07bb5..810483a45 100644
--- a/src/OBJECT/GEOM_Actor.h
+++ b/src/OBJECT/GEOM_Actor.h
@@ -222,6 +222,11 @@ public:
   bool
   GetNameMode();
 
+  virtual 
+  void 
+  SetTransform(VTKViewer_Transform* theTransform);
+
+
 protected:
   void SetModified();
 
diff --git a/src/OBJECT/GEOM_DeviceActor.cxx b/src/OBJECT/GEOM_DeviceActor.cxx
index b23eb04bc..72a65ae5d 100644
--- a/src/OBJECT/GEOM_DeviceActor.cxx
+++ b/src/OBJECT/GEOM_DeviceActor.cxx
@@ -26,20 +26,26 @@
 #include <vtkStripper.h>  
 #include <vtkPolyDataMapper.h>  
 #include <vtkPolyDataNormals.h>  
-#include <vtkActor.h> 
-#include <VTKViewer_Actor.h>
+#include <vtkActor.h>
 #include <vtkRenderer.h> 
+
+#include <VTKViewer_Actor.h>
+#include <VTKViewer_Transform.h>
+#include <VTKViewer_TransformFilter.h>
+
  
 vtkStandardNewMacro(GEOM_DeviceActor);
  
-GEOM_DeviceActor::GEOM_DeviceActor(): 
-  myStripper(vtkStripper::New(),true), 
-  myPolyDataMapper(vtkPolyDataMapper::New(),true), 
-  myPolyDataNormals(vtkPolyDataNormals::New(),true), 
-  myActor(VTKViewer_Actor::New(),true) 
+GEOM_DeviceActor::GEOM_DeviceActor() :
+  myStripper(vtkStripper::New(), true),
+  myPolyDataMapper(vtkPolyDataMapper::New(), true),
+  myPolyDataNormals(vtkPolyDataNormals::New(), true),
+  myActor(VTKViewer_Actor::New(), true),
+  myTransformFilter(VTKViewer_TransformFilter::New())
 { 
-  myStripper->SetInputConnection(myPolyDataNormals->GetOutputPort()); 
-  myPolyDataMapper->SetInputConnection(myStripper->GetOutputPort()); 
+  myStripper->SetInputConnection(myPolyDataNormals->GetOutputPort());
+  myTransformFilter->SetInputConnection(myStripper->GetOutputPort());
+  myPolyDataMapper->SetInputConnection(myTransformFilter->GetOutputPort());
  
   myActor->SetMapper(myPolyDataMapper.Get()); 
   myActor->PickableOff(); 
@@ -56,11 +62,13 @@ SetInput(vtkAlgorithmOutput* thePolyData, bool theUseStripper)
   if(theUseStripper)
   {
     myPolyDataNormals->SetInputConnection(thePolyData); 
-    myStripper->SetInputConnection(myPolyDataNormals->GetOutputPort()); 
-    myPolyDataMapper->SetInputConnection(myStripper->GetOutputPort()); 
+    myStripper->SetInputConnection(myPolyDataNormals->GetOutputPort());
+    myTransformFilter->SetInputConnection(myStripper->GetOutputPort());
+    myPolyDataMapper->SetInputConnection(myTransformFilter->GetOutputPort());
   }
-  else 
-    myPolyDataMapper->SetInputConnection(thePolyData); 
+  else
+    myTransformFilter->SetInputConnection(thePolyData);
+    myPolyDataMapper->SetInputConnection(myTransformFilter->GetOutputPort());
 }
  
 void 
@@ -118,3 +126,10 @@ RemoveFromRender(vtkRenderer* theRenderer)
 {
   theRenderer->RemoveActor(myActor.GetPointer());
 }
+
+void
+GEOM_DeviceActor
+::SetTransform(VTKViewer_Transform* theTransform)
+{
+  myTransformFilter->SetTransform(theTransform);
+}
diff --git a/src/OBJECT/GEOM_DeviceActor.h b/src/OBJECT/GEOM_DeviceActor.h
index a5562421a..6d576c825 100644
--- a/src/OBJECT/GEOM_DeviceActor.h
+++ b/src/OBJECT/GEOM_DeviceActor.h
@@ -36,7 +36,10 @@ typedef GEOM_SmartPtr<vtkPolyDataNormals> PPolyDataNormals;
  
 //class vtkActor;
 class VTKViewer_Actor;
+class VTKViewer_Transform;
+class VTKViewer_TransformFilter;
 typedef GEOM_SmartPtr<VTKViewer_Actor> PActor;
+typedef GEOM_SmartPtr<VTKViewer_TransformFilter> PTransformFilter;
  
 class vtkProperty; 
 class vtkRenderer; 
@@ -66,12 +69,15 @@ public:
   void RemoveFromRender(vtkRenderer* theRenderer);
   
   PActor GetDeviceActor() {return myActor;}
+
+  virtual void SetTransform(VTKViewer_Transform* theTransform);
  
 protected: 
   PPolyDataNormals myPolyDataNormals; 
   PPolyDataMapper myPolyDataMapper; 
   PStripper myStripper; 
-  PActor myActor; 
+  PActor myActor;
+  PTransformFilter myTransformFilter;
  
   GEOM_DeviceActor(); 
   ~GEOM_DeviceActor(); 
-- 
2.30.2