vtkMRMLColorLegendDisplayableManager.h

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

  Program: 3D Slicer

  Copyright (c) Kitware Inc.

  See COPYRIGHT.txt
  or http://www.slicer.org/copyright/copyright.txt for details.

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.

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

#ifndef __vtkMRMLColorLegendDisplayableManager_h
#define __vtkMRMLColorLegendDisplayableManager_h

// MRMLDisplayableManager includes
#include "vtkMRMLAbstractDisplayableManager.h"
#include "vtkSlicerColorsModuleMRMLDisplayableManagerExport.h"

class vtkMRMLColorLegendDisplayNode;
class vtkScalarBarWidget;
class vtkSlicerScalarBarActor;
class vtkMRMLScene;

class VTK_SLICER_COLORS_MODULE_MRMLDISPLAYABLEMANAGER_EXPORT vtkMRMLColorLegendDisplayableManager :
  public vtkMRMLAbstractDisplayableManager
{
public:
  static vtkMRMLColorLegendDisplayableManager* New();
  vtkTypeMacro(vtkMRMLColorLegendDisplayableManager, vtkMRMLAbstractDisplayableManager);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  vtkSlicerScalarBarActor* GetColorLegendActor(vtkMRMLColorLegendDisplayNode* dispNode) const;

protected:
  vtkMRMLColorLegendDisplayableManager();
  ~vtkMRMLColorLegendDisplayableManager() override;

  void Create() override;

  void UpdateFromMRML() override;

  void SetMRMLSceneInternal(vtkMRMLScene* newScene) override;
  void UpdateFromMRMLScene() override;
  void UnobserveMRMLScene() override;
  void OnMRMLSceneNodeAdded(vtkMRMLNode* node) override;
  void OnMRMLSceneNodeRemoved(vtkMRMLNode* node) override;
  void ProcessMRMLNodesEvents(vtkObject *caller,
                                      unsigned long event,
                                      void *callData) override;

  void OnMRMLDisplayableNodeModifiedEvent(vtkObject* caller) override;

  void AdditionalInitializeStep() override;

private:
  vtkMRMLColorLegendDisplayableManager(const vtkMRMLColorLegendDisplayableManager&) = delete;
  void operator=(const vtkMRMLColorLegendDisplayableManager&) = delete;

  class vtkInternal;
  vtkInternal* Internal;
};

#endif