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#pragma once
#include "draw_info.hpp"
#include "events.hpp"
#include "../indexer/drawing_rule_def.hpp"
#include "../indexer/feature.hpp"
#include "../indexer/cell_id.hpp" // CoordPointT
#include "../indexer/data_header.hpp"
#include "../indexer/feature_data.hpp"
#include "../geometry/point2d.hpp"
#include "../geometry/rect2d.hpp"
#include "../std/list.hpp"
#include "../std/limits.hpp"
#include "../yg/glyph_cache.hpp"
class ScreenBase;
namespace get_pts
{
/// @name Base class policies (use by inheritance) for points processing.
/// Containt next functions:\n
/// - make_point - convert from Feature point to Screen point
/// - convert_point - convert point to screen coordinates;\n
/// - m_rect - clip rect;\n
//@{
class base
{
protected:
ScreenBase const * m_convertor;
static m2::PointD make_point(CoordPointT const & p)
{
return m2::PointD(p.first, p.second);
}
m2::PointD g2p(m2::PointD const & pt) const;
struct params
{
ScreenBase const * m_convertor;
params() : m_convertor()
{}
};
base(params const & p) : m_convertor(p.m_convertor)
{
}
};
/// in global coordinates
class base_global : public base
{
protected:
m2::RectD const * m_rect;
m2::PointD convert_point(m2::PointD const & pt) const
{
return g2p(pt);
}
struct params : base::params
{
m2::RectD const * m_rect;
params() : m_rect(0){}
};
base_global(params const & p)
: base(p), m_rect(p.m_rect)
{
}
};
/// in screen coordinates
class base_screen : public base
{
protected:
m2::RectD m_rect;
m2::PointD convert_point(m2::PointD const & pt) const
{
return pt;
}
struct params : base::params
{
m2::RectD const * m_rect;
params() : m_rect(0)
{}
};
base_screen(params const & p);
};
//@}
template <typename TBase>
class calc_length : public TBase
{
bool m_exist;
m2::PointD m_prevPt;
public:
double m_length;
typedef typename TBase::params params;
calc_length(params const & p) :
TBase(p), m_exist(false), m_length(0)
{}
void operator() (CoordPointT const & p)
{
m2::PointD pt(this->convert_point(this->make_point(p)));
if (m_exist)
m_length += pt.Length(m_prevPt);
m_exist = true;
m_prevPt = pt;
}
bool IsExist() const {return m_exist;}
};
class one_point : public base_global
{
bool m_exist;
public:
m2::PointD m_point;
typedef base_global::params params;
one_point(params const & p)
: base_global(p), m_exist(false)
{
}
void operator() (CoordPointT const & p);
bool IsExist() const { return m_exist; }
};
template <class TInfo, class TBase> class geometry_base : public TBase
{
public:
list<TInfo> m_points;
typedef typename TBase::params params;
geometry_base(params const & p)
: TBase(p)
{
}
bool IsExist() const
{
return !m_points.empty();
}
void push_point(m2::PointD const & pt)
{
m_points.back().push_back(this->convert_point(pt));
}
};
class path_points : public geometry_base<di::PathInfo, base_screen>
{
typedef geometry_base<di::PathInfo, base_screen> base_type;
bool m_newPL, m_hasPrevPt;
m2::PointD m_prev;
double m_length;
double m_startLength;
double m_endLength;
double m_fontSize;
void StartPL(m2::PointD const & pt);
void EndPL();
static bool equal_glb_pts(m2::PointD const & p1, m2::PointD const & p2)
{
return p1.EqualDxDy(p2, 1.0E-12);
}
void simple_filtration(m2::PointD const & p);
void best_filtration(m2::PointD const & p);
public:
struct params : base_type::params
{
double m_startLength;
double m_endLength;
params() : m_startLength(0), m_endLength(0)
{}
};
path_points(params const & p)
: base_type(p),
m_newPL(true),
m_hasPrevPt(false),
m_length(0.0),
m_startLength(p.m_startLength),
m_endLength(p.m_endLength)
{
}
void operator() (m2::PointD const & p);
bool IsExist();
};
/// @name Policies for filling area.
//@{
class area_base : public geometry_base<di::AreaInfo, base_screen>
{
typedef geometry_base<di::AreaInfo, base_screen> base_type;
public:
typedef base_type::params params;
area_base(params const & p)
: base_type(p)
{
}
};
/// Used for triangle draw policy.
class area_tess_points : public area_base
{
public:
typedef area_base::params params;
area_tess_points(params const & p)
: area_base(p)
{
}
void StartPrimitive(size_t ptsCount);
void operator() (m2::PointD const & p1, m2::PointD const & p2, m2::PointD const & p3);
void EndPrimitive();
bool IsExist() const;
};
//@}
/// Adapter for points filtering, before they will go for processing
template <class TBase> class filter_screenpts_adapter : public TBase
{
size_t m_count;
m2::PointD m_prev, m_center;
static bool equal_scr_pts(m2::PointD const & p1, m2::PointD const & p2)
{
return p1.EqualDxDy(p2, 0.5);
}
static bool empty_scr_rect(m2::RectD const & r)
{
double const eps = 1.0;
return (r.SizeX() < eps && r.SizeY() < eps);
}
public:
typedef typename TBase::params params;
filter_screenpts_adapter(params const & p)
: TBase(p), m_count(0),
m_prev(numeric_limits<CoordT>::min(), numeric_limits<CoordT>::min()), m_center(0, 0)
{
}
void operator() (CoordPointT const & p)
{
m2::PointD pt = this->g2p(this->make_point(p));
if (!equal_scr_pts(m_prev, pt))
{
TBase::operator()(pt);
m_prev = pt;
}
}
void operator() (m2::PointD const & p1, m2::PointD const & p2, m2::PointD const & p3)
{
m2::PointD arr[] = { this->g2p(p1), this->g2p(p2), this->g2p(p3) };
m2::RectD r;
for (int i = 0; i < 3; ++i)
{
r.Add(arr[i]);
m_center += arr[i];
}
++m_count;
if (!empty_scr_rect(r) && r.IsIntersect(this->m_rect))
TBase::operator()(arr[0], arr[1], arr[2]);
}
m2::PointD GetCenter() const { return m_center / (3*m_count); }
};
}
namespace drule { class BaseRule; }
namespace di { class DrawInfo; }
class redraw_operation_cancelled {};
namespace fwork
{
class DrawProcessor
{
m2::RectD m_rect;
ScreenBase const & m_convertor;
shared_ptr<PaintEvent> m_paintEvent;
int m_zoom;
yg::GlyphCache * m_glyphCache;
#ifdef PROFILER_DRAWING
size_t m_drawCount;
#endif
inline DrawerYG * GetDrawer() const { return m_paintEvent->drawer(); }
void PreProcessKeys(vector<drule::Key> & keys) const;
static const int reserve_rules_count = 16;
public:
DrawProcessor(m2::RectD const & r,
ScreenBase const & convertor,
shared_ptr<PaintEvent> const & paintEvent,
int scaleLevel);
bool operator() (FeatureType const & f) const;
};
}
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