|  | VTK
    9.0.1
    | 
 
 
 
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   43 #ifndef vtkTextRenderer_h 
   44 #define vtkTextRenderer_h 
   47 #include "vtkRenderingCoreModule.h"  
   59 class RegularExpression;
 
  160   vtkSetMacro(DefaultBackend, 
int);
 
  161   vtkGetMacro(DefaultBackend, 
int);
 
  189     return this->GetBoundingBoxInternal(tprop, str, bbox, dpi, backend);
 
  192     int backend = Default)
 
  194     return this->GetBoundingBoxInternal(tprop, str, bbox, dpi, backend);
 
  205     int backend = Default)
 
  207     return this->GetMetricsInternal(tprop, str, metrics, dpi, backend);
 
  210     int backend = Default)
 
  212     return this->GetMetricsInternal(tprop, str, metrics, dpi, backend);
 
  232     int textDims[2], 
int dpi, 
int backend = Default)
 
  234     return this->RenderStringInternal(tprop, str, 
data, textDims, dpi, backend);
 
  237     int textDims[2], 
int dpi, 
int backend = Default)
 
  239     return this->RenderStringInternal(tprop, str, 
data, textDims, dpi, backend);
 
  251     int targetHeight, 
int dpi, 
int backend = Default)
 
  253     return this->GetConstrainedFontSizeInternal(
 
  254       str, tprop, targetWidth, targetHeight, dpi, backend);
 
  257     int targetHeight, 
int dpi, 
int backend = Default)
 
  259     return this->GetConstrainedFontSizeInternal(
 
  260       str, tprop, targetWidth, targetHeight, dpi, backend);
 
  275     return this->StringToPathInternal(tprop, str, path, dpi, backend);
 
  278     int backend = Default)
 
  280     return this->StringToPathInternal(tprop, str, path, dpi, backend);
 
  302   virtual bool GetBoundingBoxInternal(
 
  304   virtual bool GetBoundingBoxInternal(
 
  306   virtual bool GetMetricsInternal(
 
  309     Metrics& metrics, 
int dpi, 
int backend) = 0;
 
  315     int targetWidth, 
int targetHeight, 
int dpi, 
int backend) = 0;
 
  317     int targetWidth, 
int targetHeight, 
int dpi, 
int backend) = 0;
 
  318   virtual bool StringToPathInternal(
 
  320   virtual bool StringToPathInternal(
 
  322   virtual void SetScaleToPowerOfTwoInternal(
bool scale) = 0;
 
  360 #endif // vtkTextRenderer_h 
  
Backend
Available backends.
void SetScaleToPowerOfTwo(bool scale)
Set to true if the graphics implementation requires texture image dimensions to be a power of two.
Metrics()
Construct a Metrics object with all members initialized to 0.
int GetConstrainedFontSize(const vtkStdString &str, vtkTextProperty *tprop, int targetWidth, int targetHeight, int dpi, int backend=Default)
This function returns the font size (in points) and sets the size in tprop that is required to fit th...
static vtkTextRendererCleanup Cleanup
static vtkObject * New()
Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
virtual bool MathTextIsSupported()
concrete dataset representing a path defined by Bezier curves.
abstract base class for most VTK objects
static vtkTextRenderer * Instance
The singleton instance and the singleton cleanup instance.
vtkVector2i TopLeft
The corners of the rendered text (or background, if applicable), in pixels.
vtksys::RegularExpression * MathTextRegExp
bool GetBoundingBox(vtkTextProperty *tprop, const vtkStdString &str, int bbox[4], int dpi, int backend=Default)
Given a text property and a string, get the bounding box {xmin, xmax, ymin, ymax} of the rendered str...
bool GetMetrics(vtkTextProperty *tprop, const vtkUnicodeString &str, Metrics &metrics, int dpi, int backend=Default)
virtual bool FreeTypeIsSupported()
Test for availability of various backends.
bool StringToPath(vtkTextProperty *tprop, const vtkUnicodeString &str, vtkPath *path, int dpi, int backend=Default)
vtksys::RegularExpression * MathTextRegExp2
int DefaultBackend
The backend to use when none is specified.
vtkVector2i Ascent
Vectors representing the rotated ascent and descent of the text.
bool GetBoundingBox(vtkTextProperty *tprop, const vtkUnicodeString &str, int bbox[4], int dpi, int backend=Default)
topologically and geometrically regular array of data
a simple class to control print indentation
String class that stores Unicode text.
vtkVector2i Descent
Vectors representing the rotated ascent and descent of the text.
bool RenderString(vtkTextProperty *tprop, const vtkUnicodeString &str, vtkImageData *data, int textDims[2], int dpi, int backend=Default)
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
vtkTuple< int, 4 > BoundingBox
The axis-aligned bounding box of the rendered text and background, in pixels.
bool GetMetrics(vtkTextProperty *tprop, const vtkStdString &str, Metrics &metrics, int dpi, int backend=Default)
Given a text property and a string, get some metrics for the rendered string.
bool StringToPath(vtkTextProperty *tprop, const vtkStdString &str, vtkPath *path, int dpi, int backend=Default)
Given a text property and a string, this function populates the vtkPath path with the outline of the ...
represent text properties.
Interface for generating images and path data from string data, using multiple backends.
Some derived classes for the different vectors commonly used.
Wrapper around std::string to keep symbols short.
int GetConstrainedFontSize(const vtkUnicodeString &str, vtkTextProperty *tprop, int targetWidth, int targetHeight, int dpi, int backend=Default)
bool RenderString(vtkTextProperty *tprop, const vtkStdString &str, vtkImageData *data, int textDims[2], int dpi, int backend=Default)
Given a text property and a string, this function initializes the vtkImageData *data and renders it i...