Merge pull request #390 from kas-gui/work1

New layout macro syntax incl. stand-alone mode

.github/workflows/test.yml

@@ -68,6 +68,7 @@ jobs:
           -A clippy::module-inception \
           -A clippy::too-many-arguments \
           -A clippy::comparison_chain \
+          -A clippy::redundant_pattern_matching \
           -A clippy::unit_arg
 
   test:
@@ -120,4 +121,5 @@ jobs:
           -A clippy::module-inception \
           -A clippy::too-many-arguments \
           -A clippy::comparison_chain \
+          -A clippy::redundant_pattern_matching \
           -A clippy::unit_arg

crates/kas-core/src/core/widget.rs

@@ -361,7 +361,7 @@ pub trait Layout {
 /// impl_scope! {
 ///     /// A push-button with a text label
 ///     #[widget {
-///         layout = button: self.label;
+///         layout = button!(self.label);
 ///         navigable = true;
 ///         hover_highlight = true;
 ///     }]

crates/kas-core/src/layout/visitor.rs

@@ -177,7 +177,7 @@ impl<'a> Visitor<'a> {
     /// Construct a grid layout over an iterator of `(cell, layout)` items
     pub fn grid<I, S>(iter: I, dim: GridDimensions, data: &'a mut S) -> Self
     where
-        I: Iterator<Item = (GridChildInfo, Visitor<'a>)> + 'a,
+        I: DoubleEndedIterator<Item = (GridChildInfo, Visitor<'a>)> + 'a,
         S: GridStorage,
     {
         let layout = LayoutType::BoxComponent(Box::new(Grid {
@@ -457,7 +457,7 @@ struct Grid<'a, S, I> {
 
 impl<'a, S: GridStorage, I> Layout for Grid<'a, S, I>
 where
-    I: Iterator<Item = (GridChildInfo, Visitor<'a>)>,
+    I: DoubleEndedIterator<Item = (GridChildInfo, Visitor<'a>)>,
 {
     fn size_rules(&mut self, mgr: SizeMgr, axis: AxisInfo) -> SizeRules {
         let mut solver = GridSolver::<Vec<_>, Vec<_>, _>::new(axis, self.dim, self.data);
@@ -480,7 +480,7 @@ where
     }
 
     fn draw(&mut self, mut draw: DrawMgr) {
-        for (_, child) in &mut self.children {
+        for (_, child) in (&mut self.children).rev() {
             child.draw(draw.re_clone());
         }
     }

crates/kas-core/src/title_bar.rs

@@ -119,7 +119,7 @@ impl_scope! {
     /// A window's title bar (part of decoration)
     #[derive(Clone, Default)]
     #[widget{
-        layout = row: [
+        layout = row! [
             // self.icon,
             self.title,
             MarkButton::new(MarkStyle::Point(Direction::Down), TitleBarButton::Minimize),