TAG TECHNOLOGY

src/core/trait_fns.rs

@@ -0,0 +1,39 @@
+use super::*;
+use crate::{UiRegion, Vec2, WidgetArrLike, WidgetFn, WidgetLike};
+
+pub trait CoreWidget<Ctx: 'static, Tag> {
+    fn pad(self, padding: impl Into<Padding>) -> impl WidgetFn<Regioned, Ctx>;
+    fn center(self, size: impl Into<Vec2>) -> impl WidgetFn<Regioned, Ctx>;
+}
+
+impl<W: WidgetLike<Ctx, Tag>, Ctx: 'static, Tag> CoreWidget<Ctx, Tag> for W {
+    fn pad(self, padding: impl Into<Padding>) -> impl WidgetFn<Regioned, Ctx> {
+        |ui| Regioned {
+            region: padding.into().region(),
+            inner: self.add(ui).erase_type(),
+        }
+    }
+
+    fn center(self, size: impl Into<Vec2>) -> impl WidgetFn<Regioned, Ctx> {
+        |ui| Regioned {
+            region: UiRegion::center(size.into()),
+            inner: self.add(ui).erase_type(),
+        }
+    }
+}
+
+pub trait CoreWidgetArr<const LEN: usize, Ctx: 'static, Tag> {
+    fn span(self, dir: Dir, lengths: [impl Into<SpanLen>; LEN]) -> impl WidgetFn<Span, Ctx>;
+}
+
+impl<const LEN: usize, Wa: WidgetArrLike<LEN, Ctx, Tag>, Ctx: 'static, Tag> CoreWidgetArr<LEN, Ctx, Tag>
+    for Wa
+{
+    fn span(self, dir: Dir, lengths: [impl Into<SpanLen>; LEN]) -> impl WidgetFn<Span, Ctx> {
+        let lengths = lengths.map(Into::into);
+        move |ui| Span {
+            dir,
+            children: self.ui(ui).arr.into_iter().zip(lengths).collect(),
+        }
+    }
+}