public static bool ByName(object pa, object pb)
{
Itinerary ia = (Itinerary)pa;
Itinerary ib = (Itinerary)pb;
return(Globals.wxStricmp(ia.name, ib.name));
}
public static void toggle_itinerary(Itinerary it)
{
Track t1;
int i;
String nextitin;
do
{
for (i = 0; i < it.nsects; ++i)
{
t1 = findSwitch(it.sw[i].x, it.sw[i].y);
if (it.sw[i].switched != t1.switched)
{
t1.switched = !t1.switched;
change_coord(t1.x, t1.y);
if ((t1 = findSwitch(t1.wlinkx, t1.wlinky)) != null)
{
t1.switched = !t1.switched;
change_coord(t1.x, t1.y);
}
}
}
if (((nextitin = it.nextitin) != null) || (nextitin.Length == 0))
{
return;
}
for (it = itineraries; it != null; it = it.next)
{
if (Globals.wxStrcmp(it.name, nextitin) == 0)
{
break;
}
}
} while(it != null); /* always true */
}
public static void add_itinerary(Itinerary it, int x, int y, bool sw)
{
int i;
for (i = 0; i < it.nsects; ++i)
{
if (it.sw[i].x == x && it.sw[i].y == y)
{
it.sw[i].switched = sw;
return;
}
}
if (it.nsects >= it.maxsects)
{
it.maxsects += 10;
if (it.sw == null)
{
it.sw = new switin[it.maxsects];
}
else
{
it.sw = Globals.realloc(it.sw, it.maxsects);
}
}
it.sw[it.nsects].x = x;
it.sw[it.nsects].y = y;
it.sw[it.nsects].switched = sw;
++it.nsects;
}
public void OnDelete(object sender, Event evt)
{
Itinerary it = (Itinerary)GetSelectedData();
if (it == null) // impossible
{
return;
}
Globals.delete_itinerary(it);
Globals.FillItineraryTable();
}
public static int green_itinerary(Itinerary it)
{
Signal t1;
Itinerary ip;
String nextitin;
int i;
Signal[] blocks = new Signal[100];
int nxtblk;
nxtblk = 0;
for (ip = it; ip != null;)
{
if ((t1 = findSignalNamed(ip.signame)) != null)
{
return(0);
}
if (t1.status == trkstat.ST_GREEN)
{
return(0);
}
blocks[nxtblk++] = t1;
if (((nextitin = ip.nextitin) == null) || (nextitin.Length == 0))
{
break; /* done */
}
for (ip = itineraries; ip != null; ip = ip.next)
{
if (Globals.wxStrcmp(ip.name, nextitin) == 0)
{
break;
}
}
}
/* all signals are red, try to turn them green */
for (i = 0; i < nxtblk; ++i)
{
if (toggle_signal(blocks[i]))
{
break; /* line block is busy */
}
}
if (i >= nxtblk) /* success! */
{
return(1);
}
while (--i >= 0) /* undo signal toggling */
{
toggle_signal(blocks[i]);
}
return(0);
}
public static int check_itinerary(Itinerary it)
{
String nextitin;
Track t1;
int i;
clear_visited();
agn:
if (it == null || it.visited)
{
return(0);
}
for (i = 0; i < it.nsects; ++i)
{
t1 = findSwitch(it.sw[i].x, it.sw[i].y);
if (t1 == null || t1.fgcolor == color_green)
{
return(0);
}
it.sw[i].oldsw = t1.switched;
if (it.sw[i].switched != t1.switched)
{
if ((t1 = findSwitch(t1.wlinkx, t1.wlinky)) != null)
{
if (t1.fgcolor == color_green)
{
return(0);
}
}
}
}
if ((nextitin = it.nextitin) == null || nextitin.Length == 0)
{
return(1);
}
it.visited = true;
for (it = itineraries; it != null; it = it.next)
{
if (Globals.wxStrcmp(it.name, nextitin) == 0)
{
break;
}
}
goto agn;
}
public static void free_itinerary(Itinerary it)
{
if (String.IsNullOrEmpty(it.signame) == false)
{
Globals.free(it.signame);
}
if (String.IsNullOrEmpty(it.endsig) == false)
{
Globals.free(it.endsig);
}
if (String.IsNullOrEmpty(it.name) == false)
{
Globals.free(it.name);
}
if (it.sw != null)
{
Globals.free(it.sw);
}
Globals.free(it);
}
public static void delete_itinerary(String name)
{
Itinerary it, oit;
oit = null;
for (it = itineraries; it != null && Globals.wxStrcmp(it.name, name) != 0; it = it.next)
{
oit = it;
}
if (it == null)
{
return;
}
if (oit == null)
{
itineraries = it.next;
}
else
{
oit.next = it.next;
}
free_itinerary(it);
}
public static void delete_itinerary(Itinerary ip)
{
Itinerary it, oit;
oit = null;
for (it = itineraries; it != null && ip != it; it = it.next)
{
oit = it;
}
if (it == null)
{
return;
}
if (oit == null)
{
itineraries = it.next;
}
else
{
oit.next = it.next;
}
free_itinerary(it);
}
public static void try_itinerary(int sx, int sy, int ex, int ey)
{
Itinerary it = null;
Signal t1, t2;
t1 = findSignal(sx, sy);
t2 = findSignal(ex, ey);
if (t1 == null || t2 == null)
{
return;
}
if (String.IsNullOrEmpty(t1.station) == false && String.IsNullOrEmpty(t2.station) == false)
{
for (it = itineraries; it != null; it = it.next)
{
if ((Globals.wxStrcmp(it.signame, t1.station) == 0) &&
(Globals.wxStrcmp(it.endsig, t2.station) == 0))
{
break;
}
}
}
itinerary_selected(it);
}
public static void itinerary_selected(Itinerary it)
{
it.Select();
}