Method ScaleAction

Interaction/Widgets/vtkImplicitPlaneWidget2.cxx:255–286

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//------------------------------------------------------------------------------
void vtkImplicitPlaneWidget2::ScaleAction(vtkAbstractWidget* w)
{
  vtkImplicitPlaneWidget2* self = reinterpret_cast<vtkImplicitPlaneWidget2*>(w);

  // Get the event position
  int X = self->Interactor->GetEventPosition()[0];
  int Y = self->Interactor->GetEventPosition()[1];

  // We want to compute an orthogonal vector to the pane that has been selected
  reinterpret_cast<vtkImplicitPlaneRepresentation*>(self->WidgetRep)
    ->SetInteractionState(vtkImplicitPlaneRepresentation::Scaling);
  int interactionState = self->WidgetRep->ComputeInteractionState(X, Y);
  self->UpdateCursorShape(interactionState);

  if (self->WidgetRep->GetInteractionState() == vtkImplicitPlaneRepresentation::Outside)
  {
    return;
  }

  // We are definitely selected
  self->GrabFocus(self->EventCallbackCommand);
  double eventPos[2];
  eventPos[0] = static_cast<double>(X);
  eventPos[1] = static_cast<double>(Y);
  self->WidgetState = vtkImplicitPlaneWidget2::Active;
  self->WidgetRep->StartWidgetInteraction(eventPos);

  self->EventCallbackCommand->SetAbortFlag(1);
  self->StartInteraction();
  self->InvokeEvent(vtkCommand::StartInteractionEvent, nullptr);
  self->Render();
}

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void vtkImplicitPlaneWidget2::MoveAction(vtkAbstractWidget* w)