Extract method for drawing placeholder rows

editor/draw.go

@@ -28,27 +28,7 @@ func (e *editor) RefreshScreen() {
 func (e *editor) drawRows(ab *buffer) {
 	for y :=0; y < e.screen.Rows; y++ {
 		if y >= len(e.rows) {
-			if len(e.rows) == 0 && y == e.screen.Rows / 3 {
+			e.drawPlaceholderRow(y, ab)
-				welcome := fmt.Sprintf("Gilo editor -- version %s", KiloVersion)
-				if len(welcome) > e.screen.Cols {
-					welcome = truncateString(welcome, e.screen.Cols)
-				}
-
-				padding := (e.screen.Cols - len(welcome)) / 2
-				if padding > 0 {
-					ab.appendRune('~')
-					padding--
-				}
-
-				for padding > 0 {
-					padding--
-					ab.appendRune(' ')
-				}
-
-				ab.append(welcome)
-			} else {
-				ab.appendRune('~')
-			}
 		} else {
 			row := truncateString(string(e.rows[y].chars), e.screen.Cols)
 			ab.append(row)
@@ -62,6 +42,30 @@ func (e *editor) drawRows(ab *buffer) {
 	}
 }
 
+func (e *editor) drawPlaceholderRow(y int, ab *buffer) {
+	if len(e.rows) == 0 && y == e.screen.Rows / 3 {
+		welcome := fmt.Sprintf("Gilo editor -- version %s", KiloVersion)
+		if len(welcome) > e.screen.Cols {
+			welcome = truncateString(welcome, e.screen.Cols)
+		}
+
+		padding := (e.screen.Cols - len(welcome)) / 2
+		if padding > 0 {
+			ab.appendRune('~')
+			padding--
+		}
+
+		for padding > 0 {
+			padding--
+			ab.appendRune(' ')
+		}
+
+		ab.append(welcome)
+	} else {
+		ab.appendRune('~')
+	}
+}
+
 // ----------------------------------------------------------------------------
 // !Output Buffer
 // ----------------------------------------------------------------------------