nmWTAI-Platform/3rd/VTK7.1/source/VTK-7.1.1/Interaction/Widgets/vtkTextWidget.cxx

/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkTextWidget.cxx

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#include "vtkTextWidget.h"
#include "vtkTextRepresentation.h"
#include "vtkObjectFactory.h"
#include "vtkCommand.h"

vtkStandardNewMacro(vtkTextWidget);

//-------------------------------------------------------------------------
vtkTextWidget::vtkTextWidget()
{
}

//-------------------------------------------------------------------------
vtkTextWidget::~vtkTextWidget()
{
}

//-------------------------------------------------------------------------
void vtkTextWidget::SetTextActor(vtkTextActor *textActor)
{
  vtkTextRepresentation *textRep = reinterpret_cast<vtkTextRepresentation*>(this->WidgetRep);
  if ( ! textRep )
  {
    this->CreateDefaultRepresentation();
    textRep = reinterpret_cast<vtkTextRepresentation*>(this->WidgetRep);
  }

  if ( textRep->GetTextActor() != textActor )
  {
    textRep->SetTextActor(textActor);
    this->Modified();
  }
}


//-------------------------------------------------------------------------
vtkTextActor *vtkTextWidget::GetTextActor()
{
  vtkTextRepresentation *textRep = reinterpret_cast<vtkTextRepresentation*>(this->WidgetRep);
  if ( ! textRep )
  {
    return NULL;
  }
  else
  {
    return textRep->GetTextActor();
  }
}

//----------------------------------------------------------------------
void vtkTextWidget::CreateDefaultRepresentation()
{
  if ( ! this->WidgetRep )
  {
    this->WidgetRep = vtkTextRepresentation::New();
  }
}

//-------------------------------------------------------------------------
void vtkTextWidget::PrintSelf(ostream& os, vtkIndent indent)
{
  this->Superclass::PrintSelf(os,indent);

}