Add cpu graph labels

src/widgets/cpu.rs

@@ -114,5 +114,33 @@ impl Widget for CpuWidget {
 			.y_axis(Axis::default().bounds([0.0, 100.0]))
 			.datasets(&datasets)
 			.draw(area, buf);
+
+		if self.show_average {
+			buf.set_string(
+				area.x + 3,
+				area.y + 2,
+				format!(
+					"AVRG {:3.0}%",
+					self.average_data[self.update_count as usize - 1].1
+				),
+				Style::default().fg(Color::Yellow),
+			);
+		}
+
+		if self.show_percpu {
+			let offset = if self.show_average { 1 } else { 0 };
+			for i in 0..self.cpu_count {
+				buf.set_string(
+					area.x + 3,
+					area.y + 2 + offset + i as u16,
+					format!(
+						"CPU{} {:3.0}%",
+						i,
+						self.percpu_data[i][self.update_count as usize - 1].1
+					),
+					Style::default().fg(Color::Yellow),
+				);
+			}
+		}
 	}
 }