root/Magick++/lib/Options.cpp

DEFINITIONS

1. _drawInfo
2. _drawInfo
3. _drawInfo
4. antiAlias
5. antiAlias
6. adjoin
7. adjoin
8. backgroundColor
9. backgroundColor
10. backgroundTexture
11. backgroundTexture
12. borderColor
13. borderColor
14. boxColor
15. boxColor
16. compressType
17. compressType
18. colorFuzz
19. colorFuzz
20. debug
21. debug
22. density
23. density
24. depth
25. depth
26. endian
27. endian
28. fileName
29. fileName
30. fillColor
31. fillColor
32. fillPattern
33. fillPattern
34. fillRule
35. fillRule
36. font
37. font
38. fontPointsize
39. fontPointsize
40. format
41. interlaceType
42. interlaceType
43. magick
44. magick
45. matteColor
46. matteColor
47. monochrome
48. monochrome
49. page
50. page
51. quality
52. quality
53. quantizeColors
54. quantizeColors
55. quantizeColorSpace
56. quantizeColorSpace
57. quantizeDither
58. quantizeDither
59. quantizeTreeDepth
60. quantizeTreeDepth
61. resolutionUnits
62. resolutionUnits
63. size
64. size
65. strokeAntiAlias
66. strokeAntiAlias
67. strokeColor
68. strokeColor
69. strokeDashArray
70. strokeDashArray
71. strokeDashOffset
72. strokeDashOffset
73. strokeLineCap
74. strokeLineCap
75. strokeLineJoin
76. strokeLineJoin
77. strokeMiterLimit
78. strokeMiterLimit
79. strokePattern
80. strokePattern
81. strokeWidth
82. strokeWidth
83. subImage
84. subImage
85. subRange
86. subRange
87. textEncoding
88. textEncoding
89. tileName
90. tileName
91. type
92. type
93. transformOrigin
94. transformReset
95. transformRotation
96. transformScale
97. transformSkewX
98. transformSkewY
99. verbose
100. verbose
101. view
102. view
103. x11Display
104. x11Display
105. drawInfo
106. imageInfo
107. quantizeInfo

// This may look like C code, but it is really -*- C++ -*-
//
// Copyright Bob Friesenhahn, 1999, 2000, 2001, 2002, 2003
//
// Implementation of Options
//
// A wrapper around DrawInfo, ImageInfo, and QuantizeInfo
//

#define MAGICK_IMPLEMENTATION
#define MAGICK_PLUSPLUS_IMPLEMENTATION

#include "Magick++/Include.h"
#include <string>
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include "Magick++/Options.h"
#include "Magick++/Functions.h"
#include "Magick++/Exception.h"

#define DegreesToRadians(x) ((x)*3.14159265358979323846/180.0)

// Constructor
Magick::Options::Options( void )
  : _imageInfo(MagickAllocateMemory(ImageInfo*,sizeof(ImageInfo))),
    _quantizeInfo(MagickAllocateMemory(QuantizeInfo*,sizeof(QuantizeInfo))),
    _drawInfo(MagickAllocateMemory(DrawInfo*,sizeof(DrawInfo)))
{
  // Initialize image info with defaults
  GetImageInfo( _imageInfo );
  
  // Initialize quantization info
  GetQuantizeInfo( _quantizeInfo );

  // Initialize drawing info
  GetDrawInfo( _imageInfo, _drawInfo );
}

// Copy constructor
Magick::Options::Options( const Magick::Options& options_ )
  : _imageInfo(CloneImageInfo( options_._imageInfo )),
    _quantizeInfo(CloneQuantizeInfo(options_._quantizeInfo)),
    _drawInfo(CloneDrawInfo(_imageInfo, options_._drawInfo))
{
}

// Construct using raw structures
Magick::Options::Options( const MagickLib::ImageInfo* imageInfo_,
                          const MagickLib::QuantizeInfo* quantizeInfo_,
                          const MagickLib::DrawInfo* drawInfo_ )
: _imageInfo(0),
  _quantizeInfo(0),
  _drawInfo(0)
{
  _imageInfo = CloneImageInfo(imageInfo_);
  _quantizeInfo = CloneQuantizeInfo(quantizeInfo_);
  _drawInfo = CloneDrawInfo(imageInfo_,drawInfo_);
}

// Destructor
Magick::Options::~Options()
{
  // Destroy image info
  DestroyImageInfo( _imageInfo );
  _imageInfo=0;

  // Destroy quantization info
  DestroyQuantizeInfo( _quantizeInfo );
  _quantizeInfo=0;

  // Destroy drawing info
  DestroyDrawInfo( _drawInfo );
  _drawInfo=0;
}

/*
 * Methods for setting image attributes
 *
 */

// Anti-alias Postscript and TrueType fonts (default true)
void Magick::Options::antiAlias( bool flag_ )
{
  _drawInfo->text_antialias = static_cast<unsigned int>( flag_ );
}
bool Magick::Options::antiAlias( void ) const
{
  return static_cast<bool>(_drawInfo->text_antialias);
}

void Magick::Options::adjoin ( bool flag_ )
{
  _imageInfo->adjoin = static_cast<unsigned int>(flag_);
}
bool Magick::Options::adjoin ( void ) const
{
  return static_cast<bool>(_imageInfo->adjoin);
}

void Magick::Options::backgroundColor ( const Magick::Color &color_ )
{
  _imageInfo->background_color = color_;
}
Magick::Color Magick::Options::backgroundColor ( void ) const
{
  return Magick::Color( _imageInfo->background_color );
}

void Magick::Options::backgroundTexture ( const std::string &backgroundTexture_ )
{
  if ( backgroundTexture_.length() == 0 )
    {
      MagickFreeMemory(_imageInfo->texture);
    }
  else
    {
      Magick::CloneString( &_imageInfo->texture, backgroundTexture_ );
    }
}
std::string Magick::Options::backgroundTexture ( void ) const
{
  if ( _imageInfo->texture )
    return std::string( _imageInfo->texture );
  else
    return std::string();
}

void Magick::Options::borderColor ( const Color &color_ )
{
  _imageInfo->border_color = color_;
  _drawInfo->border_color = color_;
}
Magick::Color Magick::Options::borderColor ( void ) const
{
  return Magick::Color( _imageInfo->border_color );
}

// Text bounding-box base color
void Magick::Options::boxColor ( const Magick::Color &boxColor_ )
{
  _drawInfo->undercolor = boxColor_;
}
Magick::Color Magick::Options::boxColor ( void ) const
{
  return Magick::Color( _drawInfo->undercolor );
}

void Magick::Options::compressType ( CompressionType compressType_ )
{
  _imageInfo->compression = compressType_;
}
Magick::CompressionType Magick::Options::compressType ( void ) const
{
  return static_cast<Magick::CompressionType>(_imageInfo->compression);
}

void Magick::Options::colorFuzz ( double fuzz_ )
{
  _imageInfo->fuzz = fuzz_;
}
double Magick::Options::colorFuzz ( void ) const
{
  return _imageInfo->fuzz;
}

// Enable printing of debug messages from ImageMagick
void Magick::Options::debug ( bool flag_ )
{
  if(flag_)
    {
      SetLogEventMask("All");
    }
  else
    {
      SetLogEventMask("None");
    }
}
bool Magick::Options::debug ( void ) const
{
  if( IsEventLogging() )
    {
      return true;
    }
  return false;
}

void Magick::Options::density ( const Magick::Geometry &density_ )
{
  if ( !density_.isValid() )
    {
      MagickFreeMemory(_imageInfo->density);
    }
  else
    {
      Magick::CloneString( &_imageInfo->density, density_ );
    }
}
Magick::Geometry Magick::Options::density ( void ) const
{
  if ( _imageInfo->density )
    return Geometry( _imageInfo->density );

  return Geometry();
}

void Magick::Options::depth ( unsigned int depth_ )
{
  _imageInfo->depth = depth_;
}
unsigned int Magick::Options::depth ( void ) const
{
  return _imageInfo->depth;
}

// Endianness (little like Intel or big like SPARC) for image
// formats which support endian-specific options.
void Magick::Options::endian ( Magick::EndianType endian_ )
{
  _imageInfo->endian = endian_;
}
Magick::EndianType Magick::Options::endian ( void ) const
{
  return _imageInfo->endian;
}

void Magick::Options::fileName ( const std::string &fileName_ )
{
  fileName_.copy( _imageInfo->filename, MaxTextExtent-1 );
  _imageInfo->filename[ fileName_.length() ] = 0;
}
std::string Magick::Options::fileName ( void ) const
{
  return std::string( _imageInfo->filename );
}

// Color to use when drawing inside an object
void Magick::Options::fillColor ( const Magick::Color &fillColor_ )
{
  _drawInfo->fill = fillColor_;
}
Magick::Color Magick::Options::fillColor ( void ) const
{
  return _drawInfo->fill;
}

// Pattern image to use when filling objects
void Magick::Options::fillPattern ( const MagickLib::Image *fillPattern_ )
{
  if ( _drawInfo->fill_pattern )
    {
      DestroyImageList( _drawInfo->fill_pattern );
      _drawInfo->fill_pattern = 0;
    }

  if ( fillPattern_ )
    {
      ExceptionInfo exceptionInfo;
      GetExceptionInfo( &exceptionInfo );
      _drawInfo->fill_pattern =
        CloneImage( const_cast<MagickLib::Image*>(fillPattern_),
                    0,
                    0,
                    static_cast<int>(true),
                    &exceptionInfo );
      throwException( exceptionInfo );
    }
}
const MagickLib::Image* Magick::Options::fillPattern ( void  ) const
{
  return _drawInfo->fill_pattern;
}

// Rule to use when filling drawn objects
void Magick::Options::fillRule ( const Magick::FillRule &fillRule_ )
{
  _drawInfo->fill_rule = fillRule_;
}
Magick::FillRule Magick::Options::fillRule ( void ) const
{
  return _drawInfo->fill_rule;
}

void Magick::Options::font ( const std::string &font_ )
{
  if ( font_.length() == 0 )
    {
      MagickFreeMemory(_imageInfo->font);
      MagickFreeMemory(_drawInfo->font);
    }
  else
    {
      Magick::CloneString( &_imageInfo->font, font_ );
      Magick::CloneString( &_drawInfo->font, font_ );
    }
}
std::string Magick::Options::font ( void ) const
{
  if ( _imageInfo->font )
    return std::string( _imageInfo->font );
  
  return std::string();
}

void Magick::Options::fontPointsize ( double pointSize_ )
{
  _imageInfo->pointsize = pointSize_;
  _drawInfo->pointsize = pointSize_;
}
double Magick::Options::fontPointsize ( void ) const
{
  return _imageInfo->pointsize;
}

std::string Magick::Options::format ( void ) const
{
  ExceptionInfo exception;

  const MagickInfo * magick_info = 0;
  GetExceptionInfo(&exception);
  if ( *_imageInfo->magick != '\0' )
    magick_info = GetMagickInfo( _imageInfo->magick , &exception);
  
  if (( magick_info != 0 ) && 
      ( *magick_info->description != '\0' ))
    return std::string( magick_info->description );
  
  return std::string();
}

void Magick::Options::interlaceType ( Magick::InterlaceType interlace_ )
{
  _imageInfo->interlace = interlace_;
}
Magick::InterlaceType Magick::Options::interlaceType ( void ) const
{
  return static_cast<Magick::InterlaceType>(_imageInfo->interlace);
}

void Magick::Options::magick ( const std::string &magick_ )
{
  ExceptionInfo exception;

  FormatString( _imageInfo->filename, "%.1024s:", magick_.c_str() );
  GetExceptionInfo(&exception);
  SetImageInfo( _imageInfo, 1, &exception);
  if ( *_imageInfo->magick == '\0' )
    throwExceptionExplicit( OptionWarning,
                            "Unrecognized image format",
                            magick_.c_str() );
}
std::string Magick::Options::magick ( void ) const
{
  if ( _imageInfo->magick && *_imageInfo->magick )
    return std::string( _imageInfo->magick );
  
  return std::string();
}

void Magick::Options::matteColor ( const Magick::Color &matteColor_ )
{
  _imageInfo->matte_color = matteColor_;
}
Magick::Color Magick::Options::matteColor ( void ) const
{
  return Magick::Color( _imageInfo->matte_color );
}

void Magick::Options::monochrome ( bool monochromeFlag_ )
{
  _imageInfo->monochrome = monochromeFlag_;
}
bool Magick::Options::monochrome ( void ) const
{
  return static_cast<bool>(_imageInfo->monochrome);
}

void Magick::Options::page ( const Magick::Geometry &pageSize_ )
{
  if ( !pageSize_.isValid() )
    {
      MagickFreeMemory(_imageInfo->page);
    }
  else
    {
      Magick::CloneString( &_imageInfo->page, pageSize_ );
    }
}
Magick::Geometry Magick::Options::page ( void ) const
{
  if ( _imageInfo->page )
    return Geometry( _imageInfo->page );

    return Geometry();
}

void Magick::Options::quality ( unsigned int quality_ )
{
  _imageInfo->quality = quality_;
}
unsigned int Magick::Options::quality ( void ) const
{
  return _imageInfo->quality;
}

void Magick::Options::quantizeColors ( unsigned int colors_ )
{
  _quantizeInfo->number_colors = colors_;
}
unsigned int Magick::Options::quantizeColors ( void ) const
{
  return _quantizeInfo->number_colors;
}

void Magick::Options::quantizeColorSpace ( Magick::ColorspaceType colorSpace_ )
{
  _quantizeInfo->colorspace = colorSpace_;
}
Magick::ColorspaceType Magick::Options::quantizeColorSpace ( void ) const
{
  return static_cast<Magick::ColorspaceType>(_quantizeInfo->colorspace);
}

void Magick::Options::quantizeDither ( bool ditherFlag_ )
{
  _imageInfo->dither = ditherFlag_;
  _quantizeInfo->dither = ditherFlag_;
}
bool Magick::Options::quantizeDither ( void ) const
{
  return static_cast<bool>(_imageInfo->dither);
}

void Magick::Options::quantizeTreeDepth ( unsigned int treeDepth_ )
{
  _quantizeInfo->tree_depth = treeDepth_;
}
unsigned int Magick::Options::quantizeTreeDepth ( void ) const
{
  return _quantizeInfo->tree_depth;
}

void Magick::Options::resolutionUnits ( Magick::ResolutionType resolutionUnits_ )
{
  _imageInfo->units = resolutionUnits_;
}
Magick::ResolutionType Magick::Options::resolutionUnits ( void ) const
{
  return static_cast<Magick::ResolutionType>(_imageInfo->units);
}

void Magick::Options::size ( const Geometry &geometry_ )
{
  MagickFreeMemory(_imageInfo->size);

  if ( geometry_.isValid() )
    Magick::CloneString( &_imageInfo->size, geometry_ );
}
Magick::Geometry Magick::Options::size ( void ) const
{
  if ( _imageInfo->size )
    return Geometry( _imageInfo->size );

  return Geometry();
}

void Magick::Options::strokeAntiAlias( bool flag_ )
{
  flag_ ? _drawInfo->stroke_antialias=1 : _drawInfo->stroke_antialias=0;
}
bool Magick::Options::strokeAntiAlias( void ) const
{
  return (_drawInfo->stroke_antialias != 0 ? true : false);
}

// Color to use when drawing object outlines
void Magick::Options::strokeColor ( const Magick::Color &strokeColor_ )
{
  _drawInfo->stroke = strokeColor_;
}
Magick::Color Magick::Options::strokeColor ( void ) const
{
  return _drawInfo->stroke;
}

void Magick::Options::strokeDashArray ( const double* strokeDashArray_ )
{
  MagickFreeMemory(_drawInfo->dash_pattern);

  if(strokeDashArray_)
    {
      // Count elements in dash array
      unsigned int x;
      for (x=0; strokeDashArray_[x]; x++) {};
      // Allocate elements
      _drawInfo->dash_pattern = MagickAllocateMemory(double*,(x+1)*sizeof(double));
      // Copy elements
      memcpy(_drawInfo->dash_pattern,strokeDashArray_,
             (x+1)*sizeof(double));
    }
}
const double* Magick::Options::strokeDashArray ( void ) const
{
  return _drawInfo->dash_pattern;
}

void Magick::Options::strokeDashOffset ( double strokeDashOffset_ )
{
  _drawInfo->dash_offset = strokeDashOffset_;
}
double Magick::Options::strokeDashOffset ( void ) const
{
  return _drawInfo->dash_offset;
}

// Specify the shape to be used at the end of open subpaths when they
// are stroked. Values of LineCap are ButtCap, RoundCap, and
// SquareCap.
void Magick::Options::strokeLineCap ( Magick::LineCap lineCap_ )
{
  _drawInfo->linecap = lineCap_;
}
Magick::LineCap Magick::Options::strokeLineCap ( void ) const
{
  return _drawInfo->linecap;
}

// Specify the shape to be used at the corners of paths (or other
// vector shapes) when they are stroked.
void Magick::Options::strokeLineJoin ( Magick::LineJoin lineJoin_ )
{
  _drawInfo->linejoin = lineJoin_;
}
Magick::LineJoin Magick::Options::strokeLineJoin ( void ) const
{
  return _drawInfo->linejoin;
}

// miterLimit for drawing lines, circles, ellipses, etc.
void Magick::Options::strokeMiterLimit ( unsigned int miterLimit_ )
{
  _drawInfo->miterlimit = miterLimit_;
}
unsigned int Magick::Options::strokeMiterLimit ( void ) const
{
  return _drawInfo->miterlimit;
}

// Pattern image to use for stroked outlines
void Magick::Options::strokePattern ( const MagickLib::Image *strokePattern_ )
{
  if ( _drawInfo->stroke_pattern )
    {
      DestroyImageList( _drawInfo->stroke_pattern );
      _drawInfo->stroke_pattern = 0;
    }

  if ( strokePattern_ )
    {
      ExceptionInfo exceptionInfo;
      GetExceptionInfo( &exceptionInfo );
      _drawInfo->stroke_pattern =
        CloneImage( const_cast<MagickLib::Image*>(strokePattern_),
                    0,
                    0,
                    static_cast<int>(true),
                    &exceptionInfo );
      throwException( exceptionInfo );
    }
}
const MagickLib::Image* Magick::Options::strokePattern ( void  ) const
{
  return _drawInfo->stroke_pattern;
}

// Stroke width for drawing lines, circles, ellipses, etc.
void Magick::Options::strokeWidth ( double strokeWidth_ )
{
  _drawInfo->stroke_width = strokeWidth_;
}
double Magick::Options::strokeWidth ( void ) const
{
  return _drawInfo->stroke_width;
}

void Magick::Options::subImage ( unsigned int subImage_ )
{
  _imageInfo->subimage = subImage_;
}
unsigned int Magick::Options::subImage ( void ) const
{
  return _imageInfo->subimage;
}

void Magick::Options::subRange ( unsigned int subRange_ )
{
  _imageInfo->subrange = subRange_;
}
unsigned int Magick::Options::subRange ( void ) const
{
  return _imageInfo->subrange;
}

// Annotation text encoding (e.g. "UTF-16")
void Magick::Options::textEncoding ( const std::string &encoding_ )
{
  CloneString(&_drawInfo->encoding, encoding_.c_str());
}
std::string Magick::Options::textEncoding ( void ) const
{
  if ( _drawInfo->encoding && *_drawInfo->encoding )
    return std::string( _drawInfo->encoding );
  
  return std::string();
}

void Magick::Options::tileName ( const std::string &tileName_ )
{
  if ( tileName_.length() == 0 )
    {
      MagickFreeMemory(_imageInfo->tile);
    }
  else
    {
      Magick::CloneString( &_imageInfo->tile, tileName_ );
    }
}
std::string Magick::Options::tileName ( void ) const
{
  if ( _imageInfo->tile )
    return std::string( _imageInfo->tile );
  return std::string();
}

// Image representation type
void Magick::Options::type ( const Magick::ImageType type_ )
{
  _imageInfo->type = type_;
}
Magick::ImageType Magick::Options::type ( void ) const
{
  return _imageInfo->type;
}

// Origin of coordinate system to use when annotating with text or drawing
void Magick::Options::transformOrigin ( double tx_, double ty_ )
{
  AffineMatrix current = _drawInfo->affine;
  AffineMatrix affine;
  affine.sx=1.0;
  affine.rx=0.0;
  affine.ry=0.0;
  affine.sy=1.0;
  affine.tx=0.0;
  affine.ty=0.0;

  affine.tx = tx_;
  affine.ty = ty_;

  _drawInfo->affine.sx=current.sx*affine.sx+current.ry*affine.rx;
  _drawInfo->affine.rx=current.rx*affine.sx+current.sy*affine.rx;
  _drawInfo->affine.ry=current.sx*affine.ry+current.ry*affine.sy;
  _drawInfo->affine.sy=current.rx*affine.ry+current.sy*affine.sy;
  _drawInfo->affine.tx=current.sx*affine.tx+current.ry*affine.ty+current.tx;
  _drawInfo->affine.ty=current.rx*affine.tx+current.sy*affine.ty+current.ty;
}

// Reset transformation parameters to default
void Magick::Options::transformReset ( void )
{
  _drawInfo->affine.sx=1.0;
  _drawInfo->affine.rx=0.0;
  _drawInfo->affine.ry=0.0;
  _drawInfo->affine.sy=1.0;
  _drawInfo->affine.tx=0.0;
  _drawInfo->affine.ty=0.0;
}

// Rotation to use when annotating with text or drawing
void Magick::Options::transformRotation ( double angle_ )
{
  AffineMatrix current = _drawInfo->affine;
  AffineMatrix affine;
  affine.sx=1.0;
  affine.rx=0.0;
  affine.ry=0.0;
  affine.sy=1.0;
  affine.tx=0.0;
  affine.ty=0.0;

  affine.sx=cos(DegreesToRadians(fmod(angle_,360.0)));
  affine.rx=(-sin(DegreesToRadians(fmod(angle_,360.0))));
  affine.ry=sin(DegreesToRadians(fmod(angle_,360.0)));
  affine.sy=cos(DegreesToRadians(fmod(angle_,360.0)));

  _drawInfo->affine.sx=current.sx*affine.sx+current.ry*affine.rx;
  _drawInfo->affine.rx=current.rx*affine.sx+current.sy*affine.rx;
  _drawInfo->affine.ry=current.sx*affine.ry+current.ry*affine.sy;
  _drawInfo->affine.sy=current.rx*affine.ry+current.sy*affine.sy;
  _drawInfo->affine.tx=current.sx*affine.tx+current.ry*affine.ty+current.tx;
  _drawInfo->affine.ty=current.rx*affine.tx+current.sy*affine.ty+current.ty;
}

// Scale to use when annotating with text or drawing
void Magick::Options::transformScale ( double sx_, double sy_ )
{
  AffineMatrix current = _drawInfo->affine;
  AffineMatrix affine;
  affine.sx=1.0;
  affine.rx=0.0;
  affine.ry=0.0;
  affine.sy=1.0;
  affine.tx=0.0;
  affine.ty=0.0;

  affine.sx = sx_;
  affine.sy = sy_;

  _drawInfo->affine.sx=current.sx*affine.sx+current.ry*affine.rx;
  _drawInfo->affine.rx=current.rx*affine.sx+current.sy*affine.rx;
  _drawInfo->affine.ry=current.sx*affine.ry+current.ry*affine.sy;
  _drawInfo->affine.sy=current.rx*affine.ry+current.sy*affine.sy;
  _drawInfo->affine.tx=current.sx*affine.tx+current.ry*affine.ty+current.tx;
  _drawInfo->affine.ty=current.rx*affine.tx+current.sy*affine.ty+current.ty;
}

// Skew to use in X axis when annotating with text or drawing
void Magick::Options::transformSkewX ( double skewx_ )
{
  AffineMatrix current = _drawInfo->affine;
  AffineMatrix affine;
  affine.sx=1.0;
  affine.rx=0.0;
  affine.ry=0.0;
  affine.sy=1.0;
  affine.tx=0.0;
  affine.ty=0.0;

  affine.sx=1.0;
  affine.ry=tan(DegreesToRadians(fmod(skewx_,360.0)));
  affine.sy=1.0;

  _drawInfo->affine.sx=current.sx*affine.sx+current.ry*affine.rx;
  _drawInfo->affine.rx=current.rx*affine.sx+current.sy*affine.rx;
  _drawInfo->affine.ry=current.sx*affine.ry+current.ry*affine.sy;
  _drawInfo->affine.sy=current.rx*affine.ry+current.sy*affine.sy;
  _drawInfo->affine.tx=current.sx*affine.tx+current.ry*affine.ty+current.tx;
  _drawInfo->affine.ty=current.rx*affine.tx+current.sy*affine.ty+current.ty;
}

// Skew to use in Y axis when annotating with text or drawing
void Magick::Options::transformSkewY ( double skewy_ )
{
  AffineMatrix current = _drawInfo->affine;
  AffineMatrix affine;
  affine.sx=1.0;
  affine.rx=0.0;
  affine.ry=0.0;
  affine.sy=1.0;
  affine.tx=0.0;
  affine.ty=0.0;

  affine.sx=1.0;
  affine.rx=tan(DegreesToRadians(fmod(skewy_,360.0)));
  affine.sy=1.0;

  _drawInfo->affine.sx=current.sx*affine.sx+current.ry*affine.rx;
  _drawInfo->affine.rx=current.rx*affine.sx+current.sy*affine.rx;
  _drawInfo->affine.ry=current.sx*affine.ry+current.ry*affine.sy;
  _drawInfo->affine.sy=current.rx*affine.ry+current.sy*affine.sy;
  _drawInfo->affine.tx=current.sx*affine.tx+current.ry*affine.ty+current.tx;
  _drawInfo->affine.ty=current.rx*affine.tx+current.sy*affine.ty+current.ty;
}

void Magick::Options::verbose ( bool verboseFlag_ )
{
  _imageInfo->verbose = verboseFlag_;
}
bool Magick::Options::verbose ( void ) const
{
  return static_cast<bool>(_imageInfo->verbose);
}

void Magick::Options::view ( const std::string &view_ )
{
  if ( view_.length() == 0 )
    {
      MagickFreeMemory(_imageInfo->view);
    }
  else
    {
      Magick::CloneString( &_imageInfo->view, view_ );
    }
}
std::string Magick::Options::view ( void ) const
{
  if ( _imageInfo->view )
    return std::string( _imageInfo->view );

  return std::string();
}

void Magick::Options::x11Display ( const std::string &display_ )
{
  if ( display_.length() == 0 )
    {
      MagickFreeMemory(_imageInfo->server_name);
    }
  else
    {
      Magick::CloneString( &_imageInfo->server_name, display_ );
    }
}
std::string Magick::Options::x11Display ( void ) const
{
  if ( _imageInfo->server_name )
    return std::string( _imageInfo->server_name );

  return std::string();
}

//
// Internal implementation methods.  Please do not use.
//

MagickLib::DrawInfo * Magick::Options::drawInfo( void )
{
  return _drawInfo;
}

MagickLib::ImageInfo * Magick::Options::imageInfo( void )
{
  return _imageInfo;
}

MagickLib::QuantizeInfo * Magick::Options::quantizeInfo( void )
{
  return _quantizeInfo;
}