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vtkMathTextFreeTypeTextRenderer.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkMathTextFreeTypeTextRenderer.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
15 
31 #ifndef vtkMathTextFreeTypeTextRenderer_h
32 #define vtkMathTextFreeTypeTextRenderer_h
33 
34 #include "vtkRenderingFreeTypeModule.h" // For export macro
35 #include "vtkTextRenderer.h"
36 
37 class vtkFreeTypeTools;
39 
40 class VTKRENDERINGFREETYPE_EXPORT vtkMathTextFreeTypeTextRenderer :
41  public vtkTextRenderer
42 {
43 public:
45  void PrintSelf(ostream &os, vtkIndent indent) override;
46 
48 
50 
53  bool FreeTypeIsSupported() override;
54  bool MathTextIsSupported() override;
56 
57 protected:
60 
62 
65  bool GetBoundingBoxInternal(vtkTextProperty *tprop, const vtkStdString &str,
66  int bbox[4], int dpi, int backend) override;
68  const vtkUnicodeString &str,
69  int bbox[4], int dpi, int backend) override;
70  bool GetMetricsInternal(vtkTextProperty *tprop, const vtkStdString &str,
71  Metrics &metrics, int dpi, int backend) override;
72  bool GetMetricsInternal(vtkTextProperty *tprop, const vtkUnicodeString &str,
73  Metrics &metrics, int dpi, int backend) override;
74  bool RenderStringInternal(vtkTextProperty *tprop, const vtkStdString &str,
75  vtkImageData *data, int textDims[2], int dpi,
76  int backend) override;
78  vtkImageData *data, int textDims[2], int dpi,
79  int backend) override;
81  vtkTextProperty *tprop,
82  int targetWidth, int targetHeight, int dpi,
83  int backend) override;
85  vtkTextProperty *tprop,
86  int targetWidth, int targetHeight, int dpi,
87  int backend) override;
88  bool StringToPathInternal(vtkTextProperty *tprop, const vtkStdString &str,
89  vtkPath *path, int dpi, int backend) override;
91  vtkPath *path, int dpi, int backend) override;
92  void SetScaleToPowerOfTwoInternal(bool scale) override;
94 
95 private:
97  void operator=(const vtkMathTextFreeTypeTextRenderer &) = delete;
98 
99  vtkFreeTypeTools *FreeTypeTools;
100  vtkMathTextUtilities *MathTextUtilities;
101 };
102 
103 #endif //vtkMathTextFreeTypeTextRenderer_h
vtkX3D::scale
Definition: vtkX3D.h:229
vtkTextRenderer::GetBoundingBoxInternal
virtual bool GetBoundingBoxInternal(vtkTextProperty *tprop, const vtkStdString &str, int bbox[4], int dpi, int backend)=0
Virtual methods for concrete implementations of the public methods.
vtkX3D::data
Definition: vtkX3D.h:315
vtkTextRenderer::MathTextIsSupported
virtual bool MathTextIsSupported()
Definition: vtkTextRenderer.h:174
vtkPath
concrete dataset representing a path defined by Bezier curves.
Definition: vtkPath.h:35
vtkTextRenderer::RenderStringInternal
virtual bool RenderStringInternal(vtkTextProperty *tprop, const vtkStdString &str, vtkImageData *data, int textDims[2], int dpi, int backend)=0
vtkTextRenderer.h
vtkMathTextUtilities
Abstract interface to equation rendering.
Definition: vtkMathTextUtilities.h:54
vtkTextRenderer::SetScaleToPowerOfTwoInternal
virtual void SetScaleToPowerOfTwoInternal(bool scale)=0
vtkTextRenderer::FreeTypeIsSupported
virtual bool FreeTypeIsSupported()
Test for availability of various backends.
Definition: vtkTextRenderer.h:173
vtkTextRenderer::StringToPathInternal
virtual bool StringToPathInternal(vtkTextProperty *tprop, const vtkStdString &str, vtkPath *path, int dpi, int backend)=0
vtkImageData
topologically and geometrically regular array of data
Definition: vtkImageData.h:45
vtkIndent
a simple class to control print indentation
Definition: vtkIndent.h:39
vtkUnicodeString
String class that stores Unicode text.
Definition: vtkUnicodeString.h:72
vtkTextRenderer::GetMetricsInternal
virtual bool GetMetricsInternal(vtkTextProperty *tprop, const vtkStdString &str, Metrics &metrics, int dpi, int backend)=0
vtkTextProperty
represent text properties.
Definition: vtkTextProperty.h:39
vtkMathTextFreeTypeTextRenderer
Default implementation of vtkTextRenderer.
Definition: vtkMathTextFreeTypeTextRenderer.h:40
vtkTextRenderer
Interface for generating images and path data from string data, using multiple backends.
Definition: vtkTextRenderer.h:75
vtkTextRenderer::PrintSelf
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
vtkStdString
Wrapper around std::string to keep symbols short.
Definition: vtkStdString.h:40
vtkTextRenderer::New
static vtkTextRenderer * New()
This is a singleton pattern New.
vtkTextRenderer::Metrics
Definition: vtkTextRenderer.h:78
vtkTextRenderer::GetConstrainedFontSizeInternal
virtual int GetConstrainedFontSizeInternal(const vtkStdString &str, vtkTextProperty *tprop, int targetWidth, int targetHeight, int dpi, int backend)=0
vtkFreeTypeTools
FreeType library support.
Definition: vtkFreeTypeTools.h:70