make history.h global

git-svn-id: svn://kolibrios.org@5977 a494cfbc-eb01-0410-851d-a64ba20cac60
2015-12-16 22:08:01 +00:00
parent 0be26c4c22
commit 35b817fff3
4 changed files with 50 additions and 42 deletions
@@ -0,0 +1,38 @@
+#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);
+}