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/*=========================================================================
Program: Visualization Toolkit
Module: vtkMathTextFreeTypeTextRenderer.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.
=========================================================================*/
/**
* @class vtkMathTextFreeTypeTextRenderer
* @brief Default implementation of
* vtkTextRenderer.
*
*
* Default implementation of vtkTextRenderer using vtkFreeTypeTools and
* vtkMathTextUtilities.
*
* @warning
* The MathText backend does not currently support UTF16 strings, thus
* UTF16 strings passed to the MathText renderer will be converted to
* UTF8.
*/
#ifndef vtkMathTextFreeTypeTextRenderer_h
#define vtkMathTextFreeTypeTextRenderer_h
#include "vtkRenderingFreeTypeModule.h" // For export macro
#include "vtkTextRenderer.h"
VTK_ABI_NAMESPACE_BEGIN
class vtkFreeTypeTools;
class vtkMathTextUtilities;
class VTKRENDERINGFREETYPE_EXPORT vtkMathTextFreeTypeTextRenderer : public vtkTextRenderer
{
public:
vtkTypeMacro(vtkMathTextFreeTypeTextRenderer, vtkTextRenderer);
void PrintSelf(ostream& os, vtkIndent indent) override;
static vtkMathTextFreeTypeTextRenderer* New();
///@{
/**
* Test for availability of various backends
*/
bool FreeTypeIsSupported() override;
bool MathTextIsSupported() override;
///@}
protected:
vtkMathTextFreeTypeTextRenderer();
~vtkMathTextFreeTypeTextRenderer() override;
///@{
/**
* Reimplemented from vtkTextRenderer.
*/
bool GetBoundingBoxInternal(
vtkTextProperty* tprop, const vtkStdString& str, int bbox[4], int dpi, int backend) override;
bool GetMetricsInternal(vtkTextProperty* tprop, const vtkStdString& str, Metrics& metrics,
int dpi, int backend) override;
bool RenderStringInternal(vtkTextProperty* tprop, const vtkStdString& str, vtkImageData* data,
int textDims[2], int dpi, int backend) override;
int GetConstrainedFontSizeInternal(const vtkStdString& str, vtkTextProperty* tprop,
int targetWidth, int targetHeight, int dpi, int backend) override;
bool StringToPathInternal(
vtkTextProperty* tprop, const vtkStdString& str, vtkPath* path, int dpi, int backend) override;
void SetScaleToPowerOfTwoInternal(bool scale) override;
///@}
private:
vtkMathTextFreeTypeTextRenderer(const vtkMathTextFreeTypeTextRenderer&) = delete;
void operator=(const vtkMathTextFreeTypeTextRenderer&) = delete;
vtkFreeTypeTools* FreeTypeTools;
vtkMathTextUtilities* MathTextUtilities;
};
VTK_ABI_NAMESPACE_END
#endif // vtkMathTextFreeTypeTextRenderer_h
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