fzy

commit 422519b314fa7e806a00f9e9595ae3ef5c8ffbad
parent 2100ed06b19189a928d250cecf273d310388411c
Author: John Hawthorn <john.hawthorn@gmail.com>
Date:   Tue, 16 Sep 2014 19:13:41 -0700

Cap max lines at terminal height

Diffstat:
M
fzy.c
 | 
6
++++++
M
tty.c
 | 
6
++++++
M
tty.h
 | 
2
++

3 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/fzy.c b/fzy.c
@@ -246,6 +246,9 @@ int main(int argc, char *argv[]){
 	choices_init(&choices);
 	read_choices(&choices);
 
+	if(num_lines > choices.size)
+		num_lines = choices.size;
+
 	if(benchmark){
 		if(!initial_query){
 			fprintf(stderr, "Must specify -e/--show-matches with --benchmark\n");
@@ -265,6 +268,9 @@ int main(int argc, char *argv[]){
 		tty_t tty;
 		tty_init(&tty, tty_filename);
 
+		if(num_lines + 1 > tty_getheight(&tty))
+			num_lines = tty_getheight(&tty) - 1;
+
 		run(&tty, &choices);
 	}
 
diff --git a/tty.c b/tty.c
@@ -43,8 +43,10 @@ void tty_getwinsz(tty_t *tty){
 	struct winsize ws;
 	if(ioctl(fileno(tty->fout), TIOCGWINSZ, &ws) == -1){
 		tty->maxwidth = 80;
+		tty->maxheight = 25;
 	}else{
 		tty->maxwidth = ws.ws_col;
+		tty->maxheight = ws.ws_row;
 	}
 }
 
@@ -112,3 +114,7 @@ void tty_flush(tty_t *tty){
 size_t tty_getwidth(tty_t *tty){
 	return tty->maxwidth;
 }
+
+size_t tty_getheight(tty_t *tty){
+	return tty->maxheight;
+}
diff --git a/tty.h b/tty.h
@@ -9,6 +9,7 @@ typedef struct{
 	struct termios original_termios;
 	int fgcolor;
 	size_t maxwidth;
+	size_t maxheight;
 } tty_t;
 
 void tty_reset(tty_t *tty);
@@ -48,5 +49,6 @@ void tty_printf(tty_t *tty, const char *fmt, ...);
 void tty_flush(tty_t *tty);
 
 size_t tty_getwidth(tty_t *tty);
+size_t tty_getheight(tty_t *tty);
 
 #endif