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// -*- related-file-name: "../../libefont/t1bounds.cc" -*-
#ifndef EFONT_T1BOUNDS_HH
#define EFONT_T1BOUNDS_HH
#include <efont/t1interp.hh>
#include <lcdf/transform.hh>
namespace Efont {
class CharstringBounds : public CharstringInterp { public:
CharstringBounds();
CharstringBounds(const Transform&);
CharstringBounds(const Transform&, const Vector<double>& weight_vec);
~CharstringBounds() { }
const Point& width() const { return _width; }
double x_width() const { return _width.x; }
bool bb_known() const { return KNOWN(_lb.x); }
double bb_left() const { return _lb.x; }
double bb_top() const { return _rt.y; }
double bb_right() const { return _rt.x; }
double bb_bottom() const { return _lb.y; }
const Point& bb_bottom_left() const { return _lb; }
const Point& bb_top_right() const { return _rt; }
void act_width(int, const Point&);
void act_line(int, const Point&, const Point&);
void act_curve(int, const Point&, const Point&, const Point&, const Point&);
inline void mark(const Point&);
void clear();
bool char_bounds(const CharstringContext&, bool shift = true);
void translate(double dx, double dy);
inline Point transform(const Point &) const;
bool output(int bb[4], int& width, bool use_cur_width = false) const;
static bool bounds(const CharstringContext&, int bounds[4], int& width);
static bool bounds(const Transform&, const CharstringContext&, int bounds[4], int& width);
private:
Point _lb;
Point _rt;
Point _width;
Transform _xf;
Transform _nonfont_xf;
const CharstringProgram* _last_xf_program;
void set_xf(const CharstringProgram*);
inline void xf_mark(const Point&);
void xf_mark(const Bezier&);
inline bool xf_inside(const Point&) const;
inline bool xf_controls_inside(const Bezier&) const;
};
inline void CharstringBounds::xf_mark(const Point& p)
{
if (!KNOWN(_lb.x))
_lb = _rt = p;
if (p.x < _lb.x)
_lb.x = p.x;
else if (p.x > _rt.x)
_rt.x = p.x;
if (p.y < _lb.y)
_lb.y = p.y;
else if (p.y > _rt.y)
_rt.y = p.y;
}
inline void CharstringBounds::mark(const Point& p)
{
xf_mark(p * _xf);
}
inline bool CharstringBounds::xf_inside(const Point& p) const
{
return p.x >= _lb.x && p.x <= _rt.x && p.y >= _lb.y && p.y <= _rt.y;
}
inline bool CharstringBounds::xf_controls_inside(const Bezier& b) const
{
return xf_inside(b.point(1)) && xf_inside(b.point(2));
}
inline Point CharstringBounds::transform(const Point& p) const
{
return p * _xf;
}
}
#endif
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