vtkTextMapper.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkTextMapper_h
#define vtkTextMapper_h
 
#include "vtkMapper2D.h"
#include "vtkRenderingCoreModule.h" // For export macro
#include "vtkWrappingHints.h"       // For VTK_MARSHALAUTO
 
#include "vtkNew.h" // For vtkNew
 
VTK_ABI_NAMESPACE_BEGIN
class vtkActor2D;
class vtkImageData;
class vtkPoints;
class vtkPolyData;
class vtkPolyDataMapper2D;
class vtkTextProperty;
class vtkTexture;
class vtkTimeStamp;
class vtkViewport;
 
class VTKRENDERINGCORE_EXPORT VTK_MARSHALAUTO vtkTextMapper : public vtkMapper2D
{
public:
  vtkTypeMacro(vtkTextMapper, vtkMapper2D);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  static vtkTextMapper* New();


  virtual void GetSize(vtkViewport*, int size[2]);
  virtual int GetWidth(vtkViewport* v);
  virtual int GetHeight(vtkViewport* v);


  vtkSetStringMacro(Input);
  vtkGetStringMacro(Input);


  virtual void SetTextProperty(vtkTextProperty* p);
  vtkGetObjectMacro(TextProperty, vtkTextProperty);

  void ShallowCopy(vtkAbstractMapper* m) override;


  virtual int SetConstrainedFontSize(vtkViewport*, int targetWidth, int targetHeight);
  static int SetConstrainedFontSize(
    vtkTextMapper*, vtkViewport*, int targetWidth, int targetHeight);

  static int SetMultipleConstrainedFontSize(vtkViewport*, int targetWidth, int targetHeight,
    vtkTextMapper** mappers, int nbOfMappers, int* maxResultingSize);


  static int SetRelativeFontSize(
    vtkTextMapper*, vtkViewport*, const int* winSize, int* stringSize, float sizeFactor = 0.0);
  static int SetMultipleRelativeFontSize(vtkViewport* viewport, vtkTextMapper** textMappers,
    int nbOfMappers, int* winSize, int* stringSize, float sizeFactor);
 
  void RenderOverlay(vtkViewport*, vtkActor2D*) override;
  void ReleaseGraphicsResources(vtkWindow*) override;
  vtkMTimeType GetMTime() override;
 
protected:
  vtkTextMapper();
  ~vtkTextMapper() override;
 
  char* Input;
  vtkTextProperty* TextProperty;
 
private:
  vtkTextMapper(const vtkTextMapper&) = delete;
  void operator=(const vtkTextMapper&) = delete;
 
  void UpdateQuad(vtkActor2D* actor, int dpi);
  void UpdateImage(int dpi);
 
  int TextDims[2];
 
  int RenderedDPI;
  vtkTimeStamp CoordsTime;
  vtkTimeStamp TCoordsTime;
  vtkNew<vtkImageData> Image;
  vtkNew<vtkPoints> Points;
  vtkNew<vtkPolyData> PolyData;
  vtkNew<vtkPolyDataMapper2D> Mapper;
  vtkNew<vtkTexture> Texture;
};
 
VTK_ABI_NAMESPACE_END
#endif