C_ARROW.h

#pragma once 

#include "QFog_constants.h"


#include "C_PORT_RELATED.h"
#include "C_ARROW_DRAWER.h"
#include "C_COLORS.h"
#include "GLOBAL_FUN.h"
#include "UI_MAP.h"
class C_MAIN_VIEW;

//******************************************
class C_ARROW
{

private:
    LView  *        its_mview_p;
    C_PORT_NAME     its_s_port_name;
    C_PORT_NAME     its_d_port_name;
    Point           its_init_pt, its_fin_pt;
    BOOLEAN         its_is_selected;
    enum {arrowhead_len=16, arrowhead_halfwidth=25};
public:
     
    C_ARROW();
    C_ARROW(LView  *  view_p,
            const C_PORT_NAME  &  s_port_name,
            const C_PORT_NAME  &  d_port_name,
            const Point  &  init_pt,
            const Point  &  fin_pt);
    virtual   ~C_ARROW();

    C_PORT_NAME     get_s_port_name() const; 
    C_PORT_NAME     get_d_port_name() const; 
    const Point  &  get_init_pt() const; 
    VOID            set_init_pt(const Point  & init_pt); 
    const Point  &  get_fin_pt() const; 
    VOID            set_fin_pt(const Point  & fin_pt);
    VOID            change_source_nd(const C_PORT_NAME  &  s_port_name, const Point  & init_pt, const Point  & fin_pt);
    
    VOID    draw();
    VOID    undraw();
    
    VOID    draw_sel_handles_wkr();
    VOID    draw_sel_handles();
    VOID    undraw_sel_handles();
    Boolean     select(C_MAIN_VIEW *  mview_p);
    Boolean     unselect(C_MAIN_VIEW *  mview_p);
    VOID        toggle_select(C_MAIN_VIEW *  mview_p);
    
    VOID    move_by(const Point  &  delta);

    BOOLEAN             is_selected() const;    
    BOOLEAN             pt_is_in_sel_dom(const Point  & pt);
    VOID                renumber_nds(const UI_MAP  &  map);

    friend BOOLEAN  operator==(const C_ARROW  & ar1, const C_ARROW  & ar2);
    friend BOOLEAN  operator!=(const C_ARROW  & ar1, const C_ARROW  & ar2);

};
#pragma mark -


//******************************************
inline
C_PORT_NAME  C_ARROW::get_s_port_name() const 
{
    return its_s_port_name;
}
//******************************************
inline
C_PORT_NAME  C_ARROW::get_d_port_name() const 
{
    return its_d_port_name;
}
//******************************************
inline
const Point  &   C_ARROW::get_init_pt() const 
{ 
    return its_init_pt;
}
//******************************************
inline
VOID  C_ARROW::set_init_pt(
const Point  &      init_pt)    //in
{
    its_init_pt = init_pt;
}
//******************************************
inline
const Point  &  C_ARROW::get_fin_pt() const 
{
    return its_fin_pt;
}
//******************************************
inline
VOID  C_ARROW::set_fin_pt(
const Point  &      fin_pt)     //in
{   
    its_fin_pt = fin_pt;
}
//******************************************
inline
BOOLEAN     C_ARROW::is_selected() const
{
    return its_is_selected;
}
//******************************************
inline
BOOLEAN  operator!=(
const C_ARROW  &    ar1,    //in
const C_ARROW  &    ar2)    //in
{
    return !(ar1==ar2);
}