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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"
class vtkFreeTypeTools;
class vtkMathTextUtilities;
class VTKRENDERINGFREETYPE_EXPORT vtkMathTextFreeTypeTextRenderer :
public vtkTextRenderer
{
public:
vtkTypeMacro(vtkMathTextFreeTypeTextRenderer, vtkTextRenderer)
void PrintSelf(ostream &os, vtkIndent indent);
static vtkMathTextFreeTypeTextRenderer *New();
//@{
/**
* Test for availability of various backends
*/
virtual bool FreeTypeIsSupported();
virtual bool MathTextIsSupported();
//@}
protected:
vtkMathTextFreeTypeTextRenderer();
~vtkMathTextFreeTypeTextRenderer();
//@{
/**
* Reimplemented from vtkTextRenderer.
*/
bool GetBoundingBoxInternal(vtkTextProperty *tprop, const vtkStdString &str,
int bbox[4], int dpi, int backend);
bool GetBoundingBoxInternal(vtkTextProperty *tprop,
const vtkUnicodeString &str,
int bbox[4], int dpi, int backend);
bool GetMetricsInternal(vtkTextProperty *tprop, const vtkStdString &str,
Metrics &metrics, int dpi, int backend);
bool GetMetricsInternal(vtkTextProperty *tprop, const vtkUnicodeString &str,
Metrics &metrics, int dpi, int backend);
bool RenderStringInternal(vtkTextProperty *tprop, const vtkStdString &str,
vtkImageData *data, int textDims[2], int dpi,
int backend);
bool RenderStringInternal(vtkTextProperty *tprop, const vtkUnicodeString &str,
vtkImageData *data, int textDims[2], int dpi,
int backend);
int GetConstrainedFontSizeInternal(const vtkStdString &str,
vtkTextProperty *tprop,
int targetWidth, int targetHeight, int dpi,
int backend);
int GetConstrainedFontSizeInternal(const vtkUnicodeString &str,
vtkTextProperty *tprop,
int targetWidth, int targetHeight, int dpi,
int backend);
bool StringToPathInternal(vtkTextProperty *tprop, const vtkStdString &str,
vtkPath *path, int dpi, int backend);
bool StringToPathInternal(vtkTextProperty *tprop, const vtkUnicodeString &str,
vtkPath *path, int dpi, int backend);
void SetScaleToPowerOfTwoInternal(bool scale);
//@}
private:
vtkMathTextFreeTypeTextRenderer(const vtkMathTextFreeTypeTextRenderer &) VTK_DELETE_FUNCTION;
void operator=(const vtkMathTextFreeTypeTextRenderer &) VTK_DELETE_FUNCTION;
vtkFreeTypeTools *FreeTypeTools;
vtkMathTextUtilities *MathTextUtilities;
};
#endif //vtkMathTextFreeTypeTextRenderer_h
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