refactor: 配置面板改造为顶部固定栏 + 压力归一化优化

src/app.rs

@@ -217,7 +217,13 @@ impl EskinDesktopApp {
     }
 
     fn draw_workspace(&mut self, ui: &mut egui::Ui) {
-        self.draw_wgpu_background_rect(ui, ui.max_rect());
+        let screen = ui.max_rect();
+        let workspace = egui::Rect::from_min_max(
+            screen.left_top()
+                + egui::vec2(0.0, layout::TITLE_BAR_HEIGHT + layout::CONFIG_BAR_HEIGHT),
+            screen.right_bottom(),
+        );
+        self.draw_wgpu_background_rect(ui, workspace);
     }
 
     fn draw_split_workspace(&mut self, ui: &mut egui::Ui) {
@@ -475,17 +481,6 @@ impl EskinDesktopApp {
                     } else {
                         panel_restore_item(ui, "统计", &mut self.stats_panel);
                     }
-                    if ui
-                        .add_sized(
-                            egui::vec2(ui.available_width(), 0.0),
-                            egui::Button::new("打砖块"),
-                        )
-                        .clicked()
-                    {
-                        self.breakout_visible = true;
-                        close_menu = true;
-                    }
-
                     ui.separator();
 
                     if ui
@@ -499,7 +494,6 @@ impl EskinDesktopApp {
                         self.export_panel.visible = true;
                         self.matrix_config_panel.visible = true;
                         self.stats_panel.visible = true;
-                        self.breakout_visible = true;
                         close_menu = true;
                     }
                 });
@@ -676,16 +670,45 @@ fn normalize_pressure_samples(raw: &[u32]) -> PressureSamples {
 fn normalize_pressure_value(value: u32) -> [f32; 2] {
     const RANGE_MIN: f32 = 0.0;
     const RANGE_MAX: f32 = 7000.0;
+    const DISPLAY_GAMMA: f32 = 0.45;
 
     let raw_value = value as f32;
     let mapped = ((raw_value - RANGE_MIN) / (RANGE_MAX - RANGE_MIN)).clamp(0.0, 1.0);
+    let intensity = if raw_value <= RANGE_MIN + 4.0 {
+        0.0
+    } else {
+        mapped.powf(DISPLAY_GAMMA)
+    };
     let display_value = if raw_value <= RANGE_MIN + 4.0 {
         0.0
     } else {
         raw_value.round().min(9999.0)
     };
 
-    [mapped, display_value]
+    [intensity, display_value]
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn pressure_normalization_makes_low_hand_values_visible() {
+        let [zero_intensity, zero_label] = normalize_pressure_value(4);
+        assert_eq!(zero_intensity, 0.0);
+        assert_eq!(zero_label, 0.0);
+
+        let [low_intensity, low_label] = normalize_pressure_value(100);
+        assert!(
+            low_intensity > 0.10,
+            "low hand-gateway values should be visible in the wgpu dot matrix"
+        );
+        assert_eq!(low_label, 100.0);
+
+        let [max_intensity, max_label] = normalize_pressure_value(7000);
+        assert_eq!(max_intensity, 1.0);
+        assert_eq!(max_label, 7000.0);
+    }
 }
 
 impl eframe::App for EskinDesktopApp {