WIP

src/ui/color.rs

@@ -8,6 +8,15 @@ pub trait ColorCircle {
     #[must_use]
     fn previous(&self) -> Self;
 
+    #[must_use]
+    fn middle(&self) -> Self;
+
+    #[must_use]
+    fn start(&self) -> Self;
+
+    #[must_use]
+    fn end(&self) -> Self;
+
     #[must_use]
     fn next(&self) -> Self;
 }
@@ -25,6 +34,8 @@ impl UIColor for RGBColor {
     }
 }
 
+pub trait UIColorCircle: UIColor + ColorCircle + Sized {}
+
 macro_rules! color_map {
     ($name:ident, $id:literal) => {
         #[derive(Debug, Clone)]
@@ -77,6 +88,18 @@ macro_rules! color_map {
                 }
             }
 
+            fn middle(&self) -> Self {
+                Self::_500
+            }
+
+            fn start(&self) -> Self {
+                Self::_50
+            }
+
+            fn end(&self) -> Self {
+                Self::_950
+            }
+
             fn previous(&self) -> Self {
                 match self {
                     $name::_50 => $name::_950,
@@ -133,6 +156,44 @@ pub enum Colors {
     White,
 }
 
+impl ColorCircle for Colors {
+    fn previous(&self) -> Self {
+        match self {
+            Colors::Black => Colors::White,
+            Colors::White => Colors::Black,
+            _ => self.clone(),
+        }
+    }
+
+    fn middle(&self) -> Self {
+        self.clone()
+    }
+
+    fn start(&self) -> Self {
+        match self {
+            Colors::Black => Colors::White,
+            Colors::White => Colors::White,
+            _ => self.clone(),
+        }
+    }
+
+    fn end(&self) -> Self {
+        match self {
+            Colors::Black => Colors::Black,
+            Colors::White => Colors::Black,
+            _ => self.clone(),
+        }
+    }
+
+    fn next(&self) -> Self {
+        match self {
+            Colors::Black => Colors::White,
+            Colors::White => Colors::Black,
+            _ => self.clone(),
+        }
+    }
+}
+
 impl UIColor for Colors {
     fn color_class(&self) -> &str {
         match self {