add more edn view examples

output/src/edn_view.rs

@@ -10,11 +10,17 @@ pub type EdnRenderCallback<'a, O: Output, State> =
 
 /// Provides values to the template
 pub trait EdnViewData<E: Output> {
-    fn get_bool    (&self, _sym: EdnItem<&str>) -> bool { false }
-    fn get_usize   (&self, _sym: EdnItem<&str>) -> usize { 0 }
-    fn get_content <'a> (&'a self, _sym: EdnItem<&'a str>) -> RenderBox<'a, E> { Box::new(()) }
+    fn get_bool    (&self, _sym: EdnItem<&str>) -> bool {
+        panic!("no content")
+    }
+    fn get_usize   (&self, _sym: EdnItem<&str>) -> usize {
+        panic!("no content")
+    }
+    fn get_content <'a> (&'a self, _sym: EdnItem<&'a str>) -> RenderBox<'a, E> {
+        panic!("no content")
+    }
     fn get_unit    (&self, num: EdnItem<&str>) -> E::Unit {
-        if let EdnItem::Num(n) = num { (n as u16).into() } else { 0.into() }
+        if let EdnItem::Num(n) = num { (n as u16).into() } else { panic!("not a number") }
     }
 }
 

tek/examples/edn.rs

@@ -8,37 +8,44 @@ const EDN: &'static [&'static str] = &[
     include_str!("edn02.edn"),
     include_str!("edn03.edn"),
     include_str!("edn04.edn"),
+    include_str!("edn05.edn"),
+    include_str!("edn06.edn"),
+    include_str!("edn07.edn"),
+    include_str!("edn08.edn"),
 ];
 
 fn main () -> Usually<()> {
-    let state = Arc::new(RwLock::new(Example(0)));
+    let state = Arc::new(RwLock::new(Example(4, Measure::new())));
     Tui::new().unwrap().run(&state)?;
     Ok(())
 }
 
-pub struct Example(usize);
+pub struct Example(usize, Measure<TuiOut>);
 
 impl EdnViewData<TuiOut> for &Example {
-    fn get_content <'a> (&'a self, sym: EdnItem<&'a str>) -> RenderBox<'a, TuiOut> {
-        Box::new(Thunk::new(move||match sym {
-            EdnItem::Sym(":title") => Tui::bg(Color::Rgb(60,10,10), Push::y(1,
+    fn get_content <'a> (&'a self, item: EdnItem<&'a str>) -> RenderBox<'a, TuiOut> {
+        use EdnItem::*;
+        match item {
+            Nil => Box::new(()),
+            Exp(items) => Box::new(EdnView::from_items(*self, items.as_slice())),
+            Sym(":title") => Tui::bg(Color::Rgb(60,10,10), Push::y(1,
                 Align::n(format!("Example {}/{}:", self.0 + 1, EDN.len())))).boxed(),
-            EdnItem::Sym(":code") => Tui::bg(Color::Rgb(10,60,10), Push::y(2,
+            Sym(":code") => Tui::bg(Color::Rgb(10,60,10), Push::y(2,
                 Align::n(format!("{}", EDN[self.0])))).boxed(),
-            EdnItem::Sym(":hello-world") => "Hello world!".boxed(),
-            EdnItem::Sym(":hello") => "Hello".boxed(),
-            EdnItem::Sym(":world") => "world".boxed(),
-            _ => "".boxed()
-        }))
+            Sym(":hello-world") => "Hello world!".boxed(),
+            Sym(":hello") => Tui::bg(Color::Rgb(10, 100, 10), "Hello").boxed(),
+            Sym(":world") => Tui::bg(Color::Rgb(100, 10, 10), "world").boxed(),
+            _ => panic!("no content for {item:?}")
+        }
     }
 }
 
 impl Content<TuiOut> for Example {
     fn content (&self) -> impl Render<TuiOut> {
-        let title   = Tui::bg(Color::Rgb(60,10,10), Push::y(1, Align::n(format!("Example {}/{}:", self.0 + 1, EDN.len()))));
+        let title   = Tui::bg(Color::Rgb(60,10,10), Push::y(1, Align::n(format!("Example {}/{} in {:?}", self.0 + 1, EDN.len(), &self.1.wh()))));
         let code    = Tui::bg(Color::Rgb(10,60,10), Push::y(2, Align::n(format!("{}", EDN[self.0]))));
         let content = Tui::bg(Color::Rgb(10,10,60), EdnView::from_source(self, EDN[self.0]));
-        Bsp::s(title, Bsp::n(code, content))
+        self.1.of(Bsp::s(title, Bsp::n(code, content)))
     }
 }
 

tek/examples/edn05.edn

@@ -0,0 +1 @@
+(fixed/xy 30 20 (bsp/s (fixed/xy 5 5 :hello) (fixed/xy 5 5 :world)))

tek/examples/edn06.edn

@@ -0,0 +1 @@
+(fixed/xy 30 20 (bsp/e (fixed/xy 5 5 :hello) (fixed/xy 5 5 :world)))

tek/examples/edn07.edn

@@ -0,0 +1 @@
+(fixed/xy 30 20 (bsp/n (fixed/xy 5 5 :hello) (fixed/xy 5 5 :world)))

tek/examples/edn08.edn

@@ -0,0 +1 @@
+(fixed/xy 30 20 (bsp/w (fixed/xy 5 5 :hello) (fixed/xy 5 5 :world)))