Slightly improve stability by using smaller values

Author: ClementTsang

src/canvas/components/time_graph.rs

@@ -230,7 +230,7 @@ mod test {
     fn create_time_graph() -> TimeGraph<'static> {
         TimeGraph {
             title: " Network ".into(),
-            x_min: -15000.0,
+            x_min: -15.0,
             hide_x_labels: false,
             y_bounds: AxisBound::Max(100.5),
             y_labels: &Y_LABELS,
@@ -254,7 +254,7 @@ mod test {
         let x_axis = tg.generate_x_axis();
 
         let actual = Axis::default()
-            .bounds(AxisBound::Min(-15000.0))
+            .bounds(AxisBound::Min(-15.0))
             .labels(vec![Span::styled("15s", style), Span::styled("0s", style)])
             .style(style);
         assert_eq!(x_axis.bounds, actual.bounds);

src/canvas/components/time_graph/time_chart/canvas.rs

@@ -71,39 +71,6 @@ impl Shape for CanvasLine {
         } else {
             draw_line_high(painter, x1, y1, x2, y2, self.color);
         }
-
-        draw_line(painter, x1, y1, x2, y2, self.color);
-    }
-}
-
-/// Based on <https://github.com/gizak/termui/blob/master/drawille/drawille.go>
-fn draw_line(
-    painter: &mut Painter<'_, '_>, x1: usize, y1: usize, x2: usize, y2: usize, colour: Color,
-) {
-    let (left_point, right_point) = if x1 < x2 {
-        ((x1, y1), (x2, y2))
-    } else {
-        ((x2, y2), (x1, y1))
-    };
-
-    let dx = (left_point.0 as isize - right_point.0 as isize).abs();
-    let dy = (left_point.1 as isize - right_point.1 as isize).abs();
-
-    let slope = dy as f64 / dx as f64;
-    let slope_sign: isize = if left_point.1 < right_point.1 { 1 } else { -1 };
-
-    let mut target_y = left_point.1 as f64;
-    let mut current_y = left_point.1 as isize;
-
-    for current_x in (left_point.0)..(right_point.0) {
-        painter.paint(current_x, current_y as usize, colour);
-
-        target_y += slope * slope_sign as f64;
-
-        while current_y != target_y as isize && current_y >= 0 {
-            painter.paint(current_x, current_y as usize, colour);
-            current_y += slope_sign;
-        }
     }
 }