PgUp ang PgDn scrolling

1 files changed, 15 insertions, 0 deletions

diff --git a/main.c b/main.c
index 58b2b4a..40ecdcb 100644
--- a/main.c
+++ b/main.c
@@ -11,6 +11,7 @@ _Noreturn static void finish(int sig);
 void display_custom_form(FORM *);
 void print_contract(WINDOW *w, int x, int y, contract *c);
 int run_sim(FORM *, char **contract_subtypes);
+int min(int a, int b);
 
 int main() {
 	int ch, i;
@@ -122,6 +123,16 @@ int main() {
 				pnoutrefresh(pad, padscroll, 0, 4, 1, HEIGHT-2, WIDTH-1);
 				doupdate();
 				break;
+			case KEY_NPAGE:
+				padscroll += min(HEIGHT - 6, duration - padscroll);
+				pnoutrefresh(pad, padscroll, 0, 4, 1, HEIGHT-2, WIDTH-1);
+				doupdate();
+				break;
+			case KEY_PPAGE:
+				padscroll -= min(HEIGHT - 6, padscroll);
+				pnoutrefresh(pad, padscroll, 0, 4, 1, HEIGHT-2, WIDTH-1);
+				doupdate();
+				break;
 			case 'q':
 				display_custom_form(form);
 				formactive = TRUE;
@@ -203,3 +214,7 @@ int run_sim(FORM *form, char **contract_subtypes) {
 
 	return 1;
 }
+
+int min(int a, int b) {
+	return (a < b) ? a : b;
+}