Added instructornote and if_solutions_else

lib/typst/local/handout/0.1.0/lib.typ

@@ -4,6 +4,13 @@
 // All functions that maybe used by client code are listed here
 #import "misc.typ": *
 #import "object.typ": problem, definition, theorem, example, remark, generic
+#import "solution.typ": (
+  if_solutions,
+  if_no_solutions,
+  if_solutions_else,
+  solution,
+  instructornote,
+)
 
 
 /// Main handout wrapper.

lib/typst/local/handout/0.1.0/solution.typ

@@ -1,4 +1,4 @@
-#import "misc.typ": ored
+#import "misc.typ": ored, oblue
 
 /// If false, hide instructor info.
 ///
@@ -27,6 +27,10 @@
   if not show_solutions { content }
 }
 
+#let if_solutions_else(if_yes, if_no) = {
+  if show_solutions { if_yes } else { if_no }
+}
+
 #let solution(content) = {
   if_solutions(
     align(
@@ -54,3 +58,31 @@
     ),
   )
 }
+
+#let instructornote(content) = {
+  if_solutions(
+    align(
+      center,
+      stack(
+        block(
+          width: 100%,
+          breakable: false,
+          fill: oblue,
+          stroke: oblue + 2pt,
+          inset: 1.5mm,
+          align(left, text(fill: white, weight: "bold", [Instructor note:])),
+        ),
+
+        block(
+          width: 100%,
+          height: auto,
+          breakable: false,
+          fill: oblue.lighten(80%).desaturate(10%),
+          stroke: oblue + 2pt,
+          inset: 3mm,
+          align(left, content),
+        ),
+      ),
+    ),
+  )
+}