Add line number indication to status bar

editor/draw.go

@@ -114,18 +114,35 @@ func (e *editor) drawStatusBar(ab *buffer) {
 		fileName = e.document.filename
 	}
 
-	statusLine := fmt.Sprintf("%.20s - %d lines", fileName, e.document.rowCount())
-	length := len(statusLine)
+	leftStatus := fmt.Sprintf("%.20s - %d lines", fileName, e.document.rowCount())
+	length := len(leftStatus)
 	if length > cols {
-		statusLine = truncateString(statusLine, cols)
+		leftStatus = truncateString(leftStatus, cols)
 
-		ab.append(statusLine)
+		ab.append(leftStatus)
 		ab.append(terminal.ResetColor)
 
 		return
 	}
 	
-	ab.append(statusLine)
+	rightStatus := fmt.Sprintf("%d/%d", e.cursor.y, e.document.rowCount())
+	rlength := len(rightStatus)
+	statusLength := length + rlength
+
+	if statusLength <= cols {
+		paddingLength := cols - statusLength
+		padding := strings.Repeat(" ", paddingLength)
+
+		ab.append(leftStatus)
+		ab.append(padding)
+		ab.append(rightStatus)
+
+		ab.append(terminal.ResetColor)
+
+		return
+	}
+
+	ab.append(leftStatus)
 
 	// Pad the rest of the status line
 	padding := strings.Repeat(" ", cols - length)