stuff for ime positioning

src/layout/ui.rs

@@ -3,8 +3,8 @@ use image::DynamicImage;
 use crate::{
     core::{TextEdit, TextEditCtx},
     layout::{
-        IdLike, PainterCtx, PainterData, StaticWidgetId, TextureHandle, Vec2, Widget, WidgetId,
-        WidgetLike,
+        IdLike, PainterCtx, PainterData, PixelRegion, StaticWidgetId, TextureHandle, Vec2, Widget,
+        WidgetId, WidgetLike,
     },
     util::Id,
 };
@@ -179,6 +179,11 @@ impl Ui {
         }
     }
 
+    pub fn window_region<W>(&self, id: &impl IdLike<W>) -> Option<PixelRegion> {
+        let region = self.data.active.get(&id.id())?.region;
+        Some(region.to_screen(self.data.output_size))
+    }
+
     pub fn debug(&self, label: &str) {
         for (id, inst) in &self.data.active {
             let l = &self.data.widgets.data(id).unwrap().label;