feat(engine): add scale factor to Window struct

1 files changed, 30 insertions, 0 deletions

diff --git a/engine/src/windowing.rs b/engine/src/windowing.rs
index 69adae9..2bfdb31 100644
--- a/engine/src/windowing.rs
+++ b/engine/src/windowing.rs
@@ -195,6 +195,29 @@ fn update_stuff(
 
                 actions.remove_comps::<(Window,)>(*window_ent_id);
             }
+            MessageFromApp::WindowScaleFactorChanged(window_id, scale_factor) => {
+                let Some(window_ent_id) =
+                    windows.get(&window_id).map(|(_, ent_id)| ent_id)
+                else {
+                    tracing::error!(
+                        wid = ?window_id,
+                        "Window does not exist in windowing context"
+                    );
+                    continue;
+                };
+
+                let Some(window_ent) = entity_obtainer.get_entity(*window_ent_id) else {
+                    continue;
+                };
+
+                let Some(mut window) = window_ent.get_mut::<Window>() else {
+                    continue;
+                };
+
+                window.set_scale_factor(scale_factor);
+
+                window.set_changed();
+            }
             MessageFromApp::KeyboardKeyStateChanged(key, key_state) => {
                 keyboard.set_key_state(key, key_state);
             }
@@ -405,6 +428,7 @@ enum MessageFromApp
     WindowCreated(Uid, Arc<WinitWindow>, WindowCreationAttributes),
     WindowResized(WindowId, Dimens<u32>),
     WindowCloseRequested(WindowId),
+    WindowScaleFactorChanged(WindowId, f64),
     KeyboardKeyStateChanged(Key, KeyState),
     MouseMoved
     {
@@ -605,6 +629,12 @@ impl ApplicationHandler for App
                     self.focused_window_id = None;
                 }
             }
+            WindowEvent::ScaleFactorChanged { scale_factor, inner_size_writer: _ } => {
+                self.send_message(MessageFromApp::WindowScaleFactorChanged(
+                    WindowId::from_inner(window_id),
+                    scale_factor,
+                ));
+            }
             _ => {}
         }
     }