feat(bar): scale icon size with font size

This commit changes the way icons are displayed on the bar.

There was an issue with how app icons were sized using shrink_to_fit.

This has been changed to use fit_to_exact_size instead, relying on the
font size as a starting point and scaling it to 1.4 of its size, making
the icons to appear larger.

The same scaling was done to all the widget icons as well to make them
look unified.

komorebi-bar/src/render.rs

@@ -1,11 +1,14 @@
 use crate::bar::Alignment;
 use crate::config::KomobarConfig;
 use eframe::egui::Color32;
+use eframe::egui::Context;
+use eframe::egui::FontId;
 use eframe::egui::Frame;
 use eframe::egui::InnerResponse;
 use eframe::egui::Margin;
 use eframe::egui::Rounding;
 use eframe::egui::Shadow;
+use eframe::egui::TextStyle;
 use eframe::egui::Ui;
 use eframe::egui::Vec2;
 use schemars::JsonSchema;
@@ -29,7 +32,7 @@ pub enum Grouping {
     Widget(GroupingConfig),
 }
 
-#[derive(Copy, Clone)]
+#[derive(Clone)]
 pub struct RenderConfig {
     /// Komorebi monitor index of the monitor on which to render the bar
     pub monitor_idx: usize,
@@ -45,14 +48,28 @@ pub struct RenderConfig {
     pub more_inner_margin: bool,
     /// Set to true after the first time the apply_on_widget was called on an alignment
     pub applied_on_widget: bool,
+    /// FontId for text
+    pub text_font_id: FontId,
+    /// FontId for icon (based on scaling the text font id)
+    pub icon_font_id: FontId,
 }
 
 pub trait RenderExt {
-    fn new_renderconfig(&self, background_color: Color32) -> RenderConfig;
+    fn new_renderconfig(&self, ctx: &Context, background_color: Color32) -> RenderConfig;
 }
 
 impl RenderExt for &KomobarConfig {
-    fn new_renderconfig(&self, background_color: Color32) -> RenderConfig {
+    fn new_renderconfig(&self, ctx: &Context, background_color: Color32) -> RenderConfig {
+        let text_font_id = ctx
+            .style()
+            .text_styles
+            .get(&TextStyle::Body)
+            .cloned()
+            .unwrap_or_else(FontId::default);
+
+        let mut icon_font_id = text_font_id.clone();
+        icon_font_id.size *= 1.4;
+
         RenderConfig {
             monitor_idx: self.monitor.index,
             spacing: self.widget_spacing.unwrap_or(10.0),
@@ -61,6 +78,8 @@ impl RenderExt for &KomobarConfig {
             alignment: None,
             more_inner_margin: false,
             applied_on_widget: false,
+            text_font_id,
+            icon_font_id,
         }
     }
 }
@@ -83,6 +102,8 @@ impl RenderConfig {
             alignment: None,
             more_inner_margin: false,
             applied_on_widget: false,
+            text_font_id: FontId::default(),
+            icon_font_id: FontId::default(),
         }
     }
 
@@ -162,8 +183,8 @@ impl RenderConfig {
         Frame::group(ui.style_mut())
             .outer_margin(outer_margin.unwrap_or(Margin::ZERO))
             .inner_margin(match self.more_inner_margin {
-                true => Margin::symmetric(8.0, 3.0),
-                false => Margin::symmetric(3.0, 3.0),
+                true => Margin::symmetric(6.0, 1.0),
+                false => Margin::symmetric(1.0, 1.0),
             })
             .stroke(ui.style().visuals.widgets.noninteractive.bg_stroke)
             .rounding(match config.rounding {