0030291: Visualization - manipulator crashes when is attached with scaling mode disabled

- in ComputeSelection() method checks are added to avoid taking triangulation of manipulator parts that are not computed

src/AIS/AIS_Manipulator.cxx

@@ -271,6 +271,18 @@ void AIS_Manipulator::SetPart (const Standard_Integer theAxisIndex, const AIS_Ma
   }
 }
 
+//=======================================================================
+//function : SetPart
+//purpose  : 
+//=======================================================================
+void AIS_Manipulator::SetPart (const AIS_ManipulatorMode theMode, const Standard_Boolean theIsEnabled)
+{
+  for (Standard_Integer anIt = 0; anIt < 3; ++anIt)
+  {
+    SetPart (anIt, theMode, theIsEnabled);
+  }
+}
+
 //=======================================================================
 //function : EnableMode
 //purpose  : 
@@ -995,6 +1007,10 @@ void AIS_Manipulator::ComputeSelection (const Handle(SelectMgr_Selection)& theSe
   {
     for (Standard_Integer anIt = 0; anIt < 3; ++anIt)
     {
+      if (!myAxes[anIt].HasTranslation())
+      {
+        continue;
+      }
       const Axis& anAxis = myAxes[anIt];
       if (aMode != AIS_MM_None)
       {
@@ -1016,6 +1032,10 @@ void AIS_Manipulator::ComputeSelection (const Handle(SelectMgr_Selection)& theSe
   {
     for (Standard_Integer anIt = 0; anIt < 3; ++anIt)
     {
+      if (!myAxes[anIt].HasRotation())
+      {
+        continue;
+      }
       const Axis& anAxis = myAxes[anIt];
       if (aMode != AIS_MM_None)
       {
@@ -1036,6 +1056,10 @@ void AIS_Manipulator::ComputeSelection (const Handle(SelectMgr_Selection)& theSe
   {
     for (Standard_Integer anIt = 0; anIt < 3; ++anIt)
     {
+      if (!myAxes[anIt].HasScaling())
+      {
+        continue;
+      }
       if (aMode != AIS_MM_None)
       {
         anOwner = new AIS_ManipulatorOwner (this, anIt, AIS_MM_Scaling, 9);

src/AIS/AIS_Manipulator.hxx

@@ -112,6 +112,12 @@ public:
   //! @warning Raises program error if axis index is < 0 or > 2.
   Standard_EXPORT void SetPart (const Standard_Integer theAxisIndex, const AIS_ManipulatorMode theMode, const Standard_Boolean theIsEnabled);
 
+  //! Disable or enable visual parts for translation, rotation or scaling for ALL axes.
+  //! By default all parts are enabled (will be displayed).
+  //! @warning Enabling or disabling of visual parts of manipulator does not manage the manipulation (selection) mode.
+  //! @warning Raises program error if axis index is < 0 or > 2.
+  Standard_EXPORT void SetPart (const AIS_ManipulatorMode theMode, const Standard_Boolean theIsEnabled);
+
   //! Behavior settings to be applied when performing transformation:
   //! - FollowTranslation - whether the manipulator will be moved together with an object.
   //! - FollowRotation - whether the manipulator will be rotated together with an object.

tests/v3d/manipulator/disable_parts

@@ -0,0 +1,25 @@
+puts "====================================="
+puts "Disable functional parts for manipulator axes"
+puts "====================================="
+
+pload MODELING VISUALIZATION
+vclear
+vclose ALL
+vinit View1
+vaxo
+vzbufftrihedron
+
+box b 500 500 1 50 100 150
+vdisplay b -dispMode 1
+vfit
+
+vmanipulator m -attach b -part 0 1 0
+vdump $imagedir/${casename}_1.png
+vmanipulator m -detach
+
+vmanipulator m -attach b -part 0 2 0
+vdump $imagedir/${casename}_2.png
+vmanipulator m -detach
+
+vmanipulator m -attach b -part 0 3 0
+vdump $imagedir/${casename}_3.png