improvements and fixes to preview charts

src/chart/types/preview_chart.rs

@@ -19,8 +19,6 @@ pub struct PreviewChart {
     pub ticks: u32,
     /// Packets (sent & received)
     pub packets: ChartSeries,
-    /// Minimum number of packets per time interval (computed on last 30 intervals)
-    pub min_packets: f32,
     /// Maximum number of packets per time interval (computed on last 30 intervals)
     pub max_packets: f32,
     /// Style of the chart
@@ -32,7 +30,6 @@ pub fn new(style: StyleType) -> Self {
         Self {
             ticks: 0,
             packets: ChartSeries::default(),
-            min_packets: 0.0,
             max_packets: 0.0,
             style,
         }
@@ -49,7 +46,6 @@ pub fn update_charts_data(&mut self, packets: u128) {
 
         // update sent bytes traffic data
         self.packets.update_series(packets_point, true, false);
-        self.min_packets = self.packets.get_min();
         self.max_packets = self.packets.get_max();
     }
 
@@ -61,17 +57,6 @@ pub fn change_style(&mut self, style: StyleType) {
         self.style = style;
     }
 
-    fn set_margins_and_label_areas<DB: DrawingBackend>(
-        &self,
-        chart_builder: &mut ChartBuilder<DB>,
-    ) {
-        chart_builder
-            .margin_right(25)
-            .margin_top(6)
-            .set_label_area_size(LabelAreaPosition::Left, 55);
-        chart_builder.set_label_area_size(LabelAreaPosition::Bottom, 40);
-    }
-
     fn x_axis_range(&self) -> Range<f32> {
         // if we have only one tick, we need to add a second point to draw the area
         if self.ticks == 1 {
@@ -86,10 +71,8 @@ fn x_axis_range(&self) -> Range<f32> {
     }
 
     fn y_axis_range(&self) -> Range<f32> {
-        let (min, max) = (self.min_packets, self.max_packets);
+        let max = self.max_packets;
-        let fs = max - min;
+        0.0..max
-        let gap = fs * 0.05;
-        min - gap..max + gap
     }
 
     fn area_series<DB: DrawingBackend>(&self) -> AreaSeries<DB, f32, f32> {
@@ -120,8 +103,6 @@ fn build_chart<DB: DrawingBackend>(
             return;
         }
 
-        // self.set_margins_and_label_areas(&mut chart_builder);
-
         let x_axis_range = self.x_axis_range();
         let x_axis_start = x_axis_range.start;
         let x_axis_end = x_axis_range.end;

src/gui/sniffer.rs

@@ -338,7 +338,7 @@ pub fn update(&mut self, message: Message) -> Task<Message> {
             Message::Reset => self.reset(),
             Message::Style(style) => {
                 self.conf.settings.style = style;
-                self.traffic_chart.change_style(style);
+                self.change_charts_style();
             }
             Message::LoadStyle(path) => {
                 self.conf.settings.style_path.clone_from(&path);
@@ -347,7 +347,7 @@ pub fn update(&mut self, message: Message) -> Task<Message> {
                         CustomPalette::from_palette(palette),
                     ));
                     self.conf.settings.style = style;
-                    self.traffic_chart.change_style(style);
+                    self.change_charts_style();
                 }
             }
             Message::AddOrRemoveFavorite(host, add) => self.add_or_remove_favorite(&host, add),
@@ -892,6 +892,7 @@ fn reset(&mut self) {
         // increment capture id to ignore pending messages from previous captures
         self.current_capture_rx = (self.current_capture_rx.0 + 1, None);
         self.info_traffic = InfoTraffic::default();
+        self.preview_charts = HashMap::new();
         self.addresses_resolved = HashMap::new();
         self.favorite_hosts = HashSet::new();
         self.logged_notifications = (VecDeque::new(), 0);
@@ -1182,6 +1183,14 @@ pub fn is_capture_source_consistent(&self) -> bool {
             || self.conf.capture_source_picklist == CaptureSourcePicklist::File
                 && matches!(self.capture_source, CaptureSource::File(_))
     }
+
+    fn change_charts_style(&mut self) {
+        let style = self.conf.settings.style;
+        self.traffic_chart.change_style(style);
+        for chart in self.preview_charts.values_mut() {
+            chart.change_style(style);
+        }
+    }
 }
 
 #[cfg(test)]