Method SelectAction3D

Interaction/Widgets/vtkBoxWidget2.cxx:225–286

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void vtkBoxWidget2::SelectAction3D(vtkAbstractWidget* w)
{
  vtkBoxWidget2* self = reinterpret_cast<vtkBoxWidget2*>(w);

  // We want to compute an orthogonal vector to the plane that has been selected
  int interactionState = self->WidgetRep->ComputeComplexInteractionState(
    self->Interactor, self, vtkWidgetEvent::Select3D, self->CallData);

  if (interactionState == vtkBoxRepresentation::Outside)
  {
    return;
  }

  // Test for states that involve face or handle picking here so
  // selection highlighting doesn't happen if that interaction is disabled.
  // Non-handle-grabbing transformations are tested in the "Action" methods.

  // Rotation
  if (interactionState == vtkBoxRepresentation::Rotating && self->RotationEnabled == 0)
  {
    return;
  }
  // Face Movement
  if ((interactionState == vtkBoxRepresentation::MoveF0 ||
        interactionState == vtkBoxRepresentation::MoveF1 ||
        interactionState == vtkBoxRepresentation::MoveF2 ||
        interactionState == vtkBoxRepresentation::MoveF3 ||
        interactionState == vtkBoxRepresentation::MoveF4 ||
        interactionState == vtkBoxRepresentation::MoveF5) &&
    self->MoveFacesEnabled == 0)
  {
    return;
  }
  // Translation
  if (interactionState == vtkBoxRepresentation::Translating && self->TranslationEnabled == 0)
  {
    return;
  }

  // watch for motion events from this device
  vtkEventData* edata = static_cast<vtkEventData*>(self->CallData);
  vtkEventDataDevice3D* edd = edata->GetAsEventDataDevice3D();
  if (!edd)
  {
    return;
  }
  self->LastDevice = static_cast<int>(edd->GetDevice());

  // We are definitely selected
  if (!self->Parent)
  {
    self->GrabFocus(self->EventCallbackCommand);
  }

  self->WidgetState = vtkBoxWidget2::Active;
  self->WidgetRep->StartComplexInteraction(
    self->Interactor, self, vtkWidgetEvent::Select3D, self->CallData);