#ifndef SEEN_PEN_CONTEXT_H

#define SEEN_PEN_CONTEXT_H

#include "draw-context.h"

#include "live_effects/effect.h"

#define SP_TYPE_PEN_CONTEXT (sp_pen_context_get_type())

#define SP_PEN_CONTEXT(o) (G_TYPE_CHECK_INSTANCE_CAST((o), SP_TYPE_PEN_CONTEXT, SPPenContext))

#define SP_PEN_CONTEXT_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), SP_TYPE_PEN_CONTEXT, SPPenContextClass))

#define SP_IS_PEN_CONTEXT(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), SP_TYPE_PEN_CONTEXT))

#define SP_IS_PEN_CONTEXT_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), SP_TYPE_PEN_CONTEXT))

enum {

SP_PEN_CONTEXT_POINT,

SP_PEN_CONTEXT_CONTROL,

SP_PEN_CONTEXT_CLOSE,

SP_PEN_CONTEXT_STOP

};

enum {

SP_PEN_CONTEXT_MODE_CLICK,

SP_PEN_CONTEXT_MODE_DRAG

};

struct SPPenContext : public SPDrawContext {

Geom::Point p[5];

/** \invar npoints in {0, 2, 5}. */

// npoints somehow determines the type of the node (what does it mean, exactly? the number of Bezier handles?)

gint npoints;

unsigned int mode : 1;

unsigned int state : 2;

bool polylines_only;

bool polylines_paraxial;

int num_clicks;

unsigned int expecting_clicks_for_LPE; // if positive, finish the path after this many clicks

Inkscape::LivePathEffect::Effect *waiting_LPE; // if NULL, waiting_LPE_type in SPDrawContext is taken into account

SPLPEItem *waiting_item;

SPCanvasItem *c0, *c1, *cl0, *cl1;

unsigned int events_disabled : 1;

};

struct SPPenContextClass : public SPEventContextClass { };

GType sp_pen_context_get_type();

inline bool sp_pen_context_has_waiting_LPE(SPPenContext *pc) {

// note: waiting_LPE_type is defined in SPDrawContext

return (pc->waiting_LPE != NULL ||

pc->waiting_LPE_type != Inkscape::LivePathEffect::INVALID_LPE);

}

void sp_pen_context_set_polyline_mode(SPPenContext *const pc);

void sp_pen_context_wait_for_LPE_mouse_clicks(SPPenContext *pc, Inkscape::LivePathEffect::EffectType effect_type,

unsigned int num_clicks, bool use_polylines = true);

void sp_pen_context_cancel_waiting_for_LPE(SPPenContext *pc);

void sp_pen_context_put_into_waiting_mode(SPDesktop *desktop, Inkscape::LivePathEffect::EffectType effect_type,

unsigned int num_clicks, bool use_polylines = true);

#endif /* !SEEN_PEN_CONTEXT_H */