From 1757efdd8507619d5819ae2b5314b4fddbdfc302 Mon Sep 17 00:00:00 2001
From: Erick Navarro <erick@navarro.io>
Date: Tue, 26 May 2026 19:23:14 -0600
Subject: [PATCH] feat: hot-reload font family from config panel

---
 src/main.rs          | 11 +++++++++++
 src/renderer/text.rs |  4 ++++
 src/tui_config.rs    |  2 +-
 3 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/main.rs b/src/main.rs
index eee2cf0..91e2352 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1009,7 +1009,18 @@ impl App {
         self.reseed_pane_palettes();
         new_cfg.save();
         window.set_title(&new_cfg.window.title);
+
+        if self.state.config.font.family != new_cfg.font.family {
+            self.renderer.reload_font_family(&new_cfg.font.family);
+            for tab in &mut self.state.tabs {
+                let current_px = tab.metrics.font_px;
+                tab.metrics = self.renderer.make_metrics(current_px);
+            }
+        }
+
         self.state.config = new_cfg;
+        self.sync_all_pane_sizes();
+        window.request_redraw();
         self.state.config_panel = None;
     }
 
diff --git a/src/renderer/text.rs b/src/renderer/text.rs
index e5327d2..a4861f7 100644
--- a/src/renderer/text.rs
+++ b/src/renderer/text.rs
@@ -88,6 +88,10 @@ impl Renderer {
         }
     }
 
+    pub fn reload_font_family(&mut self, family: &str) {
+        self.glyphs = GlyphCache::new(family);
+    }
+
     /// Compute metrics for a given font size using the shared glyph cache.
     pub fn make_metrics(&mut self, font_px: f32) -> FontMetrics {
         FontMetrics::compute(&mut self.glyphs, font_px)
diff --git a/src/tui_config.rs b/src/tui_config.rs
index 502706d..41d2860 100644
--- a/src/tui_config.rs
+++ b/src/tui_config.rs
@@ -333,7 +333,7 @@ impl ConfigPanel {
         }
         match self.build_config() {
             Ok(cfg) => {
-                self.status = Some("Saved. Font/color changes apply on restart.".into());
+                self.status = Some("Saved.".into());
                 ConfigAction::Save(Box::new(cfg))
             }
             Err(e) => {