LibBoard::TransformFIG Struct Reference

Structure representing a scaling and translation suitable for an XFig output. More...

#include <Board/Transforms.h>

Inheritance diagram for LibBoard::TransformFIG:

Public Member Functions
	TransformFIG ()
double	rounded (double x) const
double	mapY (double y) const
int	mapWidth (double width) const
void	setBoundingBox (const Rect &rect, const double pageWidth, const double pageHeight, const double margin)
void	setDepthRange (const ShapeList &shapes)
int	mapDepth (int depth) const
Public Member Functions inherited from LibBoard::Transform
	Transform ()
virtual	~Transform ()
virtual double	mapX (double x) const
virtual void	apply (double &x, double &y) const
virtual double	scale (double x) const

Private Attributes
int	_maxDepth
int	_minDepth

Additional Inherited Members
Static Public Member Functions inherited from LibBoard::Transform
static double	round (const double &x)
Protected Attributes inherited from LibBoard::Transform
double	_scale
double	_deltaX
double	_deltaY
double	_height

Detailed Description

Structure representing a scaling and translation suitable for an XFig output.

The TransformFIG structure.

Definition at line 73 of file Transforms.h.

Constructor & Destructor Documentation

TransformFIG()

LibBoard::TransformFIG::TransformFIG ( )

inline

Member Function Documentation

mapDepth()

int LibBoard::TransformFIG::mapDepth

(

int

depth

)

const

Definition at line 158 of file Transforms.cpp.

{
  if ( depth > _maxDepth ) return 999;
  if ( _maxDepth - _minDepth > 998 ) {
    double range = _maxDepth - _minDepth;
    int r = static_cast<int>( 1 + Transform::round( ( ( depth - _minDepth ) / range ) * 998 ) );
    return r>=0?r:0;
  } else {
    int r = 1 + depth - _minDepth;
    return r>=0?r:0;
  }
}

References _maxDepth, _minDepth, and LibBoard::Transform::round().

mapWidth()

int LibBoard::TransformFIG::mapWidth

(

double

width

)

const

Definition at line 111 of file Transforms.cpp.

{
  // FIG width unit is 1/160 inch
  // Postscript points are 1/72 inch
  if ( width == 0.0 ) return 0;
  int result = static_cast<int>( Transform::round( 160 * ( width / 72.0 ) ) );
  return result>0?result:1;
}

References LibBoard::Transform::round().

mapY()

double LibBoard::TransformFIG::mapY ( double y ) const

virtual

Implements LibBoard::Transform.

Definition at line 105 of file Transforms.cpp.

{
  return rounded( _height - ( y * _scale + _deltaY ) );
}

References LibBoard::Transform::_deltaY, LibBoard::Transform::_height, LibBoard::Transform::_scale, and rounded().

rounded()

double LibBoard::TransformFIG::rounded ( double x ) const

virtual

Reimplemented from LibBoard::Transform.

Definition at line 99 of file Transforms.cpp.

{
  return Transform::round( x );
}

References LibBoard::Transform::round().

Referenced by mapY().

setBoundingBox()

void LibBoard::TransformFIG::setBoundingBox ( const Rect & rect, const double pageWidth, const double pageHeight, const double margin )

virtual

Implements LibBoard::Transform.

Definition at line 121 of file Transforms.cpp.

{
  if ( pageWidth <= 0 || pageHeight <= 0 ) {
    _scale = fig_ppmm / ppmm;
    _deltaX = 0.5 * 210 * fig_ppmm - _scale * ( rect.left + 0.5 * rect.width );
    //_deltaX = - rect.left;
    _deltaY = 0.5 * 297 * fig_ppmm - _scale * ( rect.top - 0.5 * rect.height );  
    // _deltaY = - rect.top;
    // _deltaY = - ( rect.top - rect.height );
    //_height = rect.height;
    _height = 297 * fig_ppmm;
  } else {
    const double w = pageWidth - 2 * margin;
    const double h = pageHeight - 2 * margin;
    if ( rect.height / rect.width > ( h / w ) ) {
      _scale = ( h * fig_ppmm ) / rect.height;
    } else {
      _scale = ( w * fig_ppmm ) / rect.width;
    }
    _deltaX = 0.5 * pageWidth * fig_ppmm - _scale * ( rect.left + 0.5 * rect.width );
    _deltaY = 0.5 * pageHeight * fig_ppmm - _scale * ( rect.top - 0.5 * rect.height );  
    _height = pageHeight * fig_ppmm;
  }
  // float ppmm = (1200/25.4);
}

References LibBoard::Transform::_deltaX, LibBoard::Transform::_deltaY, LibBoard::Transform::_height, LibBoard::Transform::_scale, LibBoard::Rect::height, LibBoard::Rect::left, LibBoard::Rect::top, and LibBoard::Rect::width.

setDepthRange()

void LibBoard::TransformFIG::setDepthRange

(

const ShapeList &

shapes

)

Definition at line 151 of file Transforms.cpp.

{
  _maxDepth = shapes.maxDepth();
  _minDepth = shapes.minDepth();
}

References _maxDepth, _minDepth, LibBoard::ShapeList::maxDepth(), and LibBoard::ShapeList::minDepth().

Field Documentation

_maxDepth

int LibBoard::TransformFIG::_maxDepth

private

Definition at line 86 of file Transforms.h.

Referenced by mapDepth(), and setDepthRange().

_minDepth

int LibBoard::TransformFIG::_minDepth

private

Definition at line 87 of file Transforms.h.

Referenced by mapDepth(), and setDepthRange().

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The documentation for this struct was generated from the following files:

• Transforms.h
• Transforms.cpp