moar flat

src/layout/iter.rs

@@ -0,0 +1,86 @@
+use super::*;
+
+/// Iterate over a collection of the same kind of [Draw]able:
+pub fn iter <'a, S: Screen, D: 'a, I: Iterator<Item = D>, U: Draw<S>> (
+    _iter: impl Fn()->I, _draw: impl Fn(D, usize)->U,
+) -> impl Draw<S> {
+    draw(move|_to: &mut S|{ todo!() })
+}
+
+/// Iterate over a collection of the same kind of [Draw]able:
+pub fn iter_once <'a, S: Screen, D: 'a, U: Draw<S>> (
+    _iter: impl Iterator<Item = D>, _draw: impl Fn(D, usize)->U,
+) -> impl Draw<S> {
+    draw(move|_to: &mut S|{ todo!() })
+}
+
+/// Iterate over a collection of various [Draw]ables:
+pub fn iter_dyn <
+    S: Screen,              // Target screen
+    D,                      // Input doesn't need to be [Draw]able, output does
+    V: Fn()->I,             // Function that returns the iterator
+    I: Iterator<Item = D>,  // Type of the iterator
+    F: Fn(&D, usize)->dyn Draw<S>, // Function that returns [Draw]able from iterator item
+> (_items: V, _cb: F) -> impl Draw<S> {
+    draw(move|_to: &mut S|{ todo!() })
+}
+
+pub fn iter_north <'a, S: Screen, D: 'a, I: Iterator<Item = D>, U: Draw<S>> (
+    _iter: impl Fn()->I, _draw: impl Fn(D, usize)->U,
+) -> impl Draw<S> {
+    draw(move|_to: &mut S|{ todo!() })
+}
+
+pub fn iter_east <'a, S: Screen, D: 'a, I: Iterator<Item = D>, U: Draw<S>> (
+    _iter: impl Fn()->I, _draw: impl Fn(D, usize)->U,
+) -> impl Draw<S> {
+    draw(move|_to: &mut S|{ todo!() })
+}
+
+pub fn iter_east_fixed <'a, S: Screen, D: 'a, I: Iterator<Item = D>, U: Draw<S>> (
+    _height: S::Unit, _iter: impl Fn()->I, _draw: impl Fn(D, usize)->U,
+) -> impl Draw<S> {
+    draw(move|_to: &mut S|{ todo!() })
+}
+
+pub fn iter_south <'a, S: Screen, D: 'a, I: Iterator<Item = D>, U: Draw<S>> (
+    _iter: impl Fn()->I, _draw: impl Fn(D, usize)->U,
+) -> impl Draw<S> {
+    draw(move|_to: &mut S|{ todo!() })
+}
+
+pub fn iter_south_fixed <'a, S: Screen, D: 'a, I: Iterator<Item = D>, U: Draw<S>> (
+    _height: S::Unit, _iter: impl Fn()->I, _draw: impl Fn(D, usize)->U,
+) -> impl Draw<S> {
+    draw(move|_to: &mut S|{ todo!() })
+}
+
+pub fn iter_west <'a, S: Screen, D: 'a, I: Iterator<Item = D>, U: Draw<S>> (
+    _iter: impl Fn()->I, _draw: impl Fn(D, usize)->U,
+) -> impl Draw<S> {
+    draw(move|_to: &mut S|{ todo!() })
+}
+
+pub fn row_south <S: Screen> (south: S::Unit, height: S::Unit, content: impl Draw<S>)
+    -> impl Draw<S>
+{
+    content.exact_h(height).push_y(south)
+}
+
+pub fn row_north <S: Screen> (north: S::Unit, height: S::Unit, content: impl Draw<S>)
+    -> impl Draw<S>
+{
+    content.exact_h(height).pull_y(north)
+}
+
+pub fn col_east <S: Screen> (east: S::Unit, width: S::Unit, content: impl Draw<S>)
+    -> impl Draw<S>
+{
+    content.exact_w(width).push_x(east)
+}
+
+pub fn col_west <S: Screen> (west: S::Unit, width: S::Unit, content: impl Draw<S>)
+    -> impl Draw<S>
+{
+    content.exact_w(width).pull_x(west)
+}