vtkQtLabelRenderStrategy.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkQtLabelRenderStrategy.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 vtkQtLabelRenderStrategy_h
#define vtkQtLabelRenderStrategy_h
 
#include "vtkLabelRenderStrategy.h"
#include "vtkRenderingQtModule.h" // For export macro
 
class vtkLabelSizeCalculator;
class vtkLabeledDataMapper;
class vtkPlaneSource;
class vtkPolyDataMapper2D;
class vtkQImageToImageSource;
class vtkTexture;
class vtkTexturedActor2D;
class vtkTextureMapToPlane;
 
class VTKRENDERINGQT_EXPORT vtkQtLabelRenderStrategy : public vtkLabelRenderStrategy
{
public:
  void PrintSelf(ostream& os, vtkIndent indent) override;
  vtkTypeMacro(vtkQtLabelRenderStrategy, vtkLabelRenderStrategy);
  static vtkQtLabelRenderStrategy* New();
 
  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 maxWidth) override
  {
    this->Superclass::RenderLabel(x, tprop, label, maxWidth);
  }
  void RenderLabel(int x[2], vtkTextProperty* tprop, vtkUnicodeString label) override;
  void RenderLabel(int x[2], vtkTextProperty* tprop, vtkUnicodeString label, int maxWidth) override;
 
  void StartFrame() override;
 
  void EndFrame() override;
 
  void ReleaseGraphicsResources(vtkWindow* window) override;
 
protected:
  vtkQtLabelRenderStrategy();
  ~vtkQtLabelRenderStrategy() override;
 
  class Internals;
  Internals* Implementation;
 
  vtkQImageToImageSource* QImageToImage;
  vtkPlaneSource* PlaneSource;
  vtkTextureMapToPlane* TextureMapToPlane;
  vtkTexture* Texture;
  vtkPolyDataMapper2D* Mapper;
  vtkTexturedActor2D* Actor;
  bool AntialiasText; // Should the text be antialiased, inherited from render window.
 
private:
  vtkQtLabelRenderStrategy(const vtkQtLabelRenderStrategy&) = delete;
  void operator=(const vtkQtLabelRenderStrategy&) = delete;
};
 
#endif