From 6d275bd299736b8d5539f41a709d628dec14c478 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Tue, 4 Aug 2026 15:50:16 +0200
Subject: feat(engine): use Fira Mono as default font for dear imgui

---
 engine/src/ui/dear_imgui.rs | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'engine/src/ui')

diff --git a/engine/src/ui/dear_imgui.rs b/engine/src/ui/dear_imgui.rs
index b571cee..4bf34c9 100644
--- a/engine/src/ui/dear_imgui.rs
+++ b/engine/src/ui/dear_imgui.rs
@@ -160,6 +160,25 @@ impl ecs::extension::Extension for Extension
             tracing::error!("Failed to set path of imgui settings ini file: {err}");
         }
 
+        assert!(
+            dear_imgui_rs::HAS_FREETYPE,
+            "Freetype font rasterizer support is not enabled"
+        );
+
+        context.ctx.font_atlas_mut().add_font_from_memory_ttf(
+            include_bytes!("../../res/FiraMono-Regular.ttf"),
+            14.0,
+            Some(
+                &dear_imgui_rs::FontConfig::default()
+                    .name("FiraMono-Regular.ttf")
+                    .font_loader_flags(
+                        dear_imgui_rs::FontLoaderFlags::BITMAP
+                            | dear_imgui_rs::FontLoaderFlags::FORCE_AUTOHINT,
+                    ),
+            ),
+            None,
+        );
+
         collector.add_sole(context).ok();
 
         collector.add_system(
@@ -983,6 +1002,11 @@ mod inner_context_wrapper
             self.ctx.io_mut()
         }
 
+        pub fn font_atlas_mut(&mut self) -> dear_imgui_rs::FontAtlas
+        {
+            self.ctx.font_atlas_mut()
+        }
+
         pub fn render(&mut self) -> &mut dear_imgui_rs::DrawData
         {
             self.ctx.render()
-- 
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