Transforms.h

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/* -*- mode: c++ -*- */
#ifndef BOARD_TRANSFORMS_H
#define BOARD_TRANSFORMS_H
 
#include <cmath>
#include <limits>
#include <map>
#include <vector>
#include "TransformMatrix.h"
#include "board/Point.h"
#include "board/Rect.h"
namespace LibBoard
{
 
struct Shape;
struct ShapeList;
 
struct Transform {
  inline Transform();
  virtual ~Transform();
  virtual double mapX(double x) const;
  virtual double mapY(double y) const = 0;
  virtual Point map(const Point &) const;
  virtual void apply(double & x, double & y) const;
  virtual double scale(double x) const;
  virtual Point scale(const Point &) const;
  virtual double rounded(double x) const;
  virtual void setBoundingBox(const Rect & rect, const double pageWidth, const double pageHeight, const double margin) = 0;
  static inline double round(const double & x);
 
protected:
  double _scale;
  double _deltaX;
  double _deltaY;
  double _height;
};
 
struct TransformEPS : public Transform {
  double mapWidth(double w) const;
  double mapY(double y) const;
  void setBoundingBox(const Rect & rect, const double pageWidth, const double pageHeight, const double margin);
  double scaleBackMM(double);
  Rect pageBoundingBox() const;
 
private:
  Rect _pageBoundingBox;
};
 
struct TransformFIG : public Transform {
  inline 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);
  unsigned int shapeDepth(const Shape *) const;
  unsigned int mapDepth(unsigned int depth) const;
  void setDepthMap(const std::map<const Shape *, unsigned int> *, unsigned int min);
 
private:
  unsigned int _maxDepth;
  unsigned int _minDepth;
  double _postscriptScale;
  const std::map<const Shape *, unsigned int> * _depthMap;
};
 
struct TransformSVG : public Transform {
  double rounded(double x) const;
  double mapY(double y) const;
  double mapWidth(double width) const;
  void setBoundingBox(const Rect & rect, const double pageWidth, const double pageHeight, const double margin);
  double scaleBackMM(double);
  TransformMatrix matrix() const;
  Point translation() const;
  double deltaX() const;
  double deltaY() const;
};
 
struct TransformTikZ : public TransformSVG {
  ~TransformTikZ() override;
};
 
// Inline methods and functions
 
#if defined(max)
#undef max
#define HAS_MSVC_MAX true
#endif
 
Transform::Transform() : _scale(1.0), _deltaX(0.0), _deltaY(0.0), _height(0.0) {}
 
TransformFIG::TransformFIG() : _maxDepth(std::numeric_limits<int>::max()), _minDepth(0), _postscriptScale(1.0)
{
  _depthMap = nullptr;
}
 
double Transform::round(const double & x)
{
  return std::floor(x + 0.5);
}
 
#if defined(HAS_MSVC_MAX)
#define max(A, B) ((A) > (B) ? (A) : (B))
#endif
 
} // namespace LibBoard
 
#endif /* BOARD_TRANSFORMS_H */