vtkFreeTypeLabelRenderStrategy.h

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

  Program:   Visualization Toolkit
  Module:    vtkFreeTypeLabelRenderStrategy.h

  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.

=========================================================================*/
#ifndef vtkFreeTypeLabelRenderStrategy_h
#define vtkFreeTypeLabelRenderStrategy_h

#include "vtkRenderingLabelModule.h" // For export macro
#include "vtkLabelRenderStrategy.h"

class vtkActor2D;
class vtkTextRenderer;
class vtkTextMapper;

class VTKRENDERINGLABEL_EXPORT vtkFreeTypeLabelRenderStrategy : public vtkLabelRenderStrategy
{
 public:
  void PrintSelf(ostream& os, vtkIndent indent) override;
  vtkTypeMacro(vtkFreeTypeLabelRenderStrategy, vtkLabelRenderStrategy);
  static vtkFreeTypeLabelRenderStrategy* New();

  bool SupportsRotation() override
    { return false; }

  bool SupportsBoundedSize() override
    { return false; }

  void ComputeLabelBounds(vtkTextProperty* tprop, vtkStdString label, double bds[4]) override
    { this->Superclass::ComputeLabelBounds(tprop, label, bds); }
  void ComputeLabelBounds(vtkTextProperty* tprop, vtkUnicodeString label, double bds[4]) override;

  void RenderLabel(int x[2], vtkTextProperty* tprop, vtkStdString label) override
    { this->Superclass::RenderLabel(x, tprop, label); }
  void RenderLabel(int x[2], vtkTextProperty* tprop, vtkStdString label, int width) override
    { this->Superclass::RenderLabel(x, tprop, label, width); }
  void RenderLabel(int x[2], vtkTextProperty* tprop, vtkUnicodeString label) override;
  void RenderLabel(int x[2], vtkTextProperty* tprop, vtkUnicodeString label, int width) override
    { this->Superclass::RenderLabel(x, tprop, label, width); }

  void ReleaseGraphicsResources(vtkWindow *window) override;

protected:
  vtkFreeTypeLabelRenderStrategy();
  ~vtkFreeTypeLabelRenderStrategy() override;

  vtkTextRenderer *TextRenderer;
  vtkTextMapper* Mapper;
  vtkActor2D* Actor;

private:
  vtkFreeTypeLabelRenderStrategy(const vtkFreeTypeLabelRenderStrategy&) = delete;
  void operator=(const vtkFreeTypeLabelRenderStrategy&) = delete;
};

#endif