Refactor color list management

There's now a ColorList type that provides strongly typed indexing for
not only usize but NamedColor as well. Previously, the `NamedColor` was
casted to a `usize` when indexing the colors. Additionally, only one
copy of the ColorList needs to exist;it's borrowed from the `Config`
when rendering, and the renderer doesn't need a copy.

1 files changed, 16 insertions, 0 deletions

diff --git a/src/ansi.rs b/src/ansi.rs
index 089bc277..8ff0a2e4 100644
--- a/src/ansi.rs
+++ b/src/ansi.rs
@@ -349,6 +349,22 @@ pub enum NamedColor {
     Background,
 }
 
+impl NamedColor {
+    pub fn to_bright(&self) -> Self {
+        match *self {
+            NamedColor::Black => NamedColor::BrightBlack,
+            NamedColor::Red => NamedColor::BrightRed,
+            NamedColor::Green => NamedColor::BrightGreen,
+            NamedColor::Yellow => NamedColor::BrightYellow,
+            NamedColor::Blue => NamedColor::BrightBlue,
+            NamedColor::Magenta => NamedColor::BrightMagenta,
+            NamedColor::Cyan => NamedColor::BrightCyan,
+            NamedColor::White => NamedColor::BrightWhite,
+            val => val
+        }
+    }
+}
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
 pub enum Color {
     Named(NamedColor),