small changes

core/src/ui/active.rs

@@ -0,0 +1,23 @@
+use crate::{LayerId, Len, MaskIdx, PrimitiveHandle, TextureHandle, UiRegion, UiVec2, WidgetId};
+
+/// important non rendering data for retained drawing
+#[derive(Debug)]
+pub struct ActiveData {
+    pub id: WidgetId,
+    pub region: UiRegion,
+    pub parent: Option<WidgetId>,
+    pub textures: Vec<TextureHandle>,
+    pub primitives: Vec<PrimitiveHandle>,
+    pub children: Vec<WidgetId>,
+    pub resize: ResizeRef,
+    pub mask: MaskIdx,
+    pub layer: LayerId,
+}
+
+/// stores information for children about the highest level parent that needed their size
+/// so that they can redraw the parent if their size changes
+#[derive(Clone, Copy, Debug, Default)]
+pub struct ResizeRef {
+    pub x: Option<(WidgetId, (UiVec2, Len))>,
+    pub y: Option<(WidgetId, (UiVec2, Len))>,
+}