forked from KolibriOS/kolibrios
38 lines
602 B
C
38 lines
602 B
C
|
#include "..\lib\collection.h"
|
||
|
|
|
||
|
|
struct _History {
|
||
|
|
collection items;
|
||
|
|
int active;
|
||
|
|
dword add();
|
||
|
|
dword back();
|
||
|
|
dword forward();
|
||
|
|
dword current();
|
||
|
|
} History;
|
||
|
|
|
||
|
|
dword _History::add(dword in)
|
||
|
|
{
|
||
|
|
if (!strcmp(in, items.get(active-1))) return 0;
|
||
|
|
items.count = active;
|
||
|
|
items.add(in);
|
||
|
|
active++;
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
dword _History::back()
|
||
|
|
{
|
||
|
|
if (active==1) return 0;
|
||
|
|
active--;
|
||
|
|
return items.get(active-1);
|
||
|
|
}
|
||
|
|
|
||
|
|
dword _History::forward()
|
||
|
|
{
|
||
|
|
if (active==items.count) return 0;
|
||
|
|
active++;
|
||
|
|
return items.get(active-1);
|
||
|
|
}
|
||
|
|
|
||
|
|
dword _History::current()
|
||
|
|
{
|
||
|
|
return items.get(active-1);
|
||
|
|
}
|