fix redundant cursor control sequences

1 files changed, 6 insertions, 18 deletions

diff --git a/tui/draw.go b/tui/draw.go
index 2584171..3772aa0 100644
--- a/tui/draw.go
+++ b/tui/draw.go
@@ -149,12 +149,6 @@ func Present() error {
 	var p pos
 	for p.y = 0; p.y < s.Height; p.y++ {
 		for p.x = 0; p.x < s.Width; {
-			if reset {
-				err := writeCursor(p.x, p.y)
-				if err != nil {
-					return err
-				}
-			}
 			c := scr.front[p]
 			if c.c == "" {
 				c.c = " "
@@ -164,17 +158,14 @@ func Present() error {
 				c.c = " "
 			}
 			if c != scr.back[p] || scr.prevSize != s {
+				if reset {
+					writeCursor(p.x, p.y)
+				}
 				if style != c.style {
 					style = c.style
-					err := writeStyle(style)
-					if err != nil {
-						return err
-					}
-				}
-				_, err := scr.writer.WriteString(c.c)
-				if err != nil {
-					return err
+					writeStyle(style)
 				}
+				scr.writer.WriteString(c.c)
 				// make sure that the cursor position remains synced even if
 				// the terminal mangles a wide char or grapheme
 				if cw == 1 && len([]rune(c.c)) == 1 {
@@ -188,10 +179,7 @@ func Present() error {
 			p.x += cw
 		}
 	}
-	err := writeCursor(scr.cursor.x, scr.cursor.y)
-	if err != nil {
-		return err
-	}
+	writeCursor(scr.cursor.x, scr.cursor.y)
 	scr.prevSize = s
 
 	f := scr.front