implement Draw<Tui> for usize

dizzle

@@ -1 +1 @@
-Subproject commit 5426dc44f231531758a7e8575117357b55b1a9f5
+Subproject commit ab177b0d0d1ccdff0c69f915847be9a23a364663

src/layout.rs

@@ -163,9 +163,9 @@ impl Sizer {
             $state: &S, $output: &mut O, $expr: &str
         ) -> Perhaps<XYWH<O::Unit>> where
             S: Interpret<O, Option<XYWH<O::Unit>>>
-                + for<'b> Namespace<'b, bool>
-                + for<'b> Namespace<'b, O::Unit>
-                + for<'b> Namespace<'b, Option<O::Unit>>
+                + Namespace<bool>
+                + Namespace<O::Unit>
+                + Namespace<Option<O::Unit>>
         $body
     }
 }
@@ -177,10 +177,10 @@ impl Sizer {
             $state: &S, $output: &mut Tui, $expr: &str
         ) -> Perhaps<XYWH<u16>> where
             S: Interpret<Tui, Option<XYWH<u16>>>
-                + for<'b> Namespace<'b, bool>
-                + for<'b> Namespace<'b, u16>
-                + for<'b> Namespace<'b, Option<u16>>
-                + for<'b> Namespace<'b, Color>
+                + Namespace<bool>
+                + Namespace<u16>
+                + Namespace<Option<u16>>
+                + Namespace<Color>
         $body
     }
 }

src/term.rs

@@ -439,6 +439,28 @@ impl<T: Draw<Tui>> Draw<Tui> for ShowSizeOf<T> {
         }
     }
 
+    impl_draw!(|self: usize, to: Tui|{
+        let XYWH(x0, y0, w0, h0) = to.area();
+        let mut v = *self;
+        let w = (1 + if v > 0 { self.ilog10() } else { 0 }) as u16;
+        let h = 1u16;
+        Ok((w0 >= w && h0 >= h).then(||{
+            if let Tui::Draw(buffer, ..) = to {
+                let mut x = x0 + w - 1;
+                while x >= x0 {
+                    if let Some(cell) = buffer.cell_mut(Position { x, y: y0 }) {
+                        cell.set_char([
+                            '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'
+                        ][(v % 10) as usize]);
+                    }
+                    x -= 1;
+                    v = v / 10;
+                }
+            }
+            XYWH(x0, y0, w, h)
+        }))
+    });
+
     impl_draw!(|self: String, to: Tui|{
         self.as_str().draw(to)
     });

src/term/border.rs

@@ -194,7 +194,7 @@ pub trait BorderStyle: Draw<Tui> + Copy {
         let area = to.area();
         let style = style.or_else(||self.style_vertical());
         let [x, x2, y, y2] = area.lrtb();
-        let h = y2 - y;
+        let h = y2.minus(y);
         if h > 1 {
             for y in y..y2.saturating_sub(1) {
                 to.blit(&Self::W, x, y, style);

src/term/modify.rs

@@ -30,7 +30,7 @@ fn_kw_layout_tui!(kw_tui_bg |state, output, expr| {
 });
 
 impl Tui {
-    pub fn eval_color_expr (state: &impl for<'a> Namespace<'a, u8>, src: impl Language)
+    pub fn eval_color_expr (state: &impl Namespace<u8>, src: impl Language)
         -> Perhaps<Color>
     {
         if let Some(expr) = src.expr()? {