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vtkMatplotlibMathTextUtilities.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkMatplotlibMathTextUtilities.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 =========================================================================*/
28 #ifndef vtkMatplotlibMathTextUtilities_h
29 #define vtkMatplotlibMathTextUtilities_h
30 
31 #include "vtkRenderingMatplotlibModule.h" // For export macro
32 #include "vtkMathTextUtilities.h"
33 
34 struct _object;
35 typedef struct _object PyObject;
36 class vtkImageData;
37 class vtkPath;
38 class vtkPythonInterpreter;
39 class vtkTextProperty;
40 
41 class VTKRENDERINGMATPLOTLIB_EXPORT vtkMatplotlibMathTextUtilities :
43 {
44 public:
46  void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
47 
49 
50  virtual bool IsAvailable() VTK_OVERRIDE;
51 
59  bool GetBoundingBox(vtkTextProperty *tprop, const char *str, int dpi,
60  int bbox[4]) VTK_OVERRIDE;
61 
62  bool GetMetrics(vtkTextProperty *tprop, const char *str, int dpi,
63  vtkTextRenderer::Metrics &metrics) VTK_OVERRIDE;
64 
75  bool RenderString(const char *str, vtkImageData *data, vtkTextProperty *tprop,
76  int dpi, int textDims[2] = NULL) VTK_OVERRIDE;
77 
84  bool StringToPath(const char *str, vtkPath *path, vtkTextProperty *tprop,
85  int dpi) VTK_OVERRIDE;
86 
88 
93  void SetScaleToPowerOfTwo(bool val) VTK_OVERRIDE;
94  bool GetScaleToPowerOfTwo() VTK_OVERRIDE;
96 
97 protected:
99  virtual ~vtkMatplotlibMathTextUtilities();
100 
101  bool InitializeMaskParser();
102  bool InitializePathParser();
103  bool InitializeFontPropertiesClass();
104 
105  bool CheckForError();
106  bool CheckForError(PyObject *object);
107 
112  PyObject * GetFontProperties(vtkTextProperty *tprop);
113 
119  void CleanupPythonObjects();
120 
121  vtkPythonInterpreter* Interpreter;
122  PyObject *MaskParser;
123  PyObject *PathParser;
124  PyObject *FontPropertiesClass;
125 
126  static void GetJustifiedBBox(int rows, int cols, vtkTextProperty *tprop,
127  int bbox[4]);
128 
129  // Rotate the 4 2D corner points by the specified angle (degrees) around the
130  // origin and calculate the bounding box
131  static void RotateCorners(double angleDeg, double corners[4][2],
132  double bbox[4]);
133 
134  bool ScaleToPowerOfTwo;
135  bool PrepareImageData(vtkImageData *data, int bbox[4]);
136 
137 private:
138  vtkMatplotlibMathTextUtilities(const vtkMatplotlibMathTextUtilities&) VTK_DELETE_FUNCTION;
139  void operator=(const vtkMatplotlibMathTextUtilities&) VTK_DELETE_FUNCTION;
140 
145  enum Availability
146  {
147  NOT_TESTED = 0,
148  AVAILABLE,
149  UNAVAILABLE
150  };
151 
158  static Availability CheckMPLAvailability();
159 
161 
164  static Availability MPLMathTextAvailable;
165 };
167 
168 #endif
virtual bool IsAvailable()
Returns true if mathtext rendering is available.
concrete dataset representing a path defined by Bezier curves.
Definition: vtkPath.h:32
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
Access to MatPlotLib MathText rendering.
a simple class to control print indentation
Definition: vtkIndent.h:33
topologically and geometrically regular array of data
Definition: vtkImageData.h:39
represent text properties.
Interface for generating images and path data from string data, using multiple backends.
Abstract interface to equation rendering.
static vtkMathTextUtilities * New()
This is a singleton pattern New.
struct _object PyObject