refactor painter

core/src/ui/mod.rs

@@ -1,6 +1,7 @@
 use crate::{
     Event, EventFn, EventLike, EventManager, IdLike, Mask, PixelRegion, PrimitiveLayers, TextData,
     TextureHandle, Textures, Widget, WidgetHandle, WidgetId, WidgetLike, Widgets,
+    ui::draw_state::DrawState,
     util::{HashMap, TrackedArena, Vec2},
 };
 use image::DynamicImage;
@@ -9,8 +10,12 @@ use std::{
     sync::mpsc::{Receiver, Sender, channel},
 };
 
+mod draw_state;
 mod painter;
-pub use painter::{ActiveData, Painter, SizeCtx};
+mod size;
+
+pub use painter::{ActiveData, Painter};
+pub use size::*;
 
 pub struct Ui<State> {
     // TODO: edit visibilities
@@ -106,14 +111,14 @@ impl<State: 'static> Ui<State> {
 
     pub fn update(&mut self) {
         if self.full_redraw {
-            self.redraw_all();
+            DrawState::new(self).redraw_all();
             self.full_redraw = false;
         } else if self.widgets.has_updates() {
-            self.redraw_updates();
+            DrawState::new(self).redraw_updates();
         }
         if self.resized {
             self.resized = false;
-            self.redraw_all();
+            DrawState::new(self).redraw_all();
         }
     }