From 368995b51f2b0b8574a87ebe04749cb556b4c538 Mon Sep 17 00:00:00 2001
From: JJ
Date: Tue, 31 Oct 2023 18:14:55 -0700
Subject: Add rainbow indentation guides

ref: https://github.com/helix-editor/helix/issues/4010
ref: https://github.com/helix-editor/helix/pull/4493

Co-authored-by: SoraTenshi <dream@neoncity.dev>
---
 helix-view/src/editor.rs | 10 ++++++++++
 helix-view/src/theme.rs  |  4 ++++
 2 files changed, 14 insertions(+)

(limited to 'helix-view')

diff --git a/helix-view/src/editor.rs b/helix-view/src/editor.rs
index fbfed656..b2615c9f 100644
--- a/helix-view/src/editor.rs
+++ b/helix-view/src/editor.rs
@@ -764,12 +764,21 @@ impl Default for WhitespaceCharacters {
     }
 }
 
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+#[serde(rename_all = "kebab-case")]
+pub enum RainbowIndentOptions {
+    None,
+    Dim,
+    Normal,
+}
+
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
 #[serde(default, rename_all = "kebab-case")]
 pub struct IndentGuidesConfig {
     pub render: bool,
     pub character: char,
     pub skip_levels: u8,
+    pub rainbow_option: RainbowIndentOptions,
 }
 
 impl Default for IndentGuidesConfig {
@@ -778,6 +787,7 @@ impl Default for IndentGuidesConfig {
             skip_levels: 0,
             render: false,
             character: '│',
+            rainbow_option: RainbowIndentOptions::None,
         }
     }
 }
diff --git a/helix-view/src/theme.rs b/helix-view/src/theme.rs
index 16da247f..8236d370 100644
--- a/helix-view/src/theme.rs
+++ b/helix-view/src/theme.rs
@@ -383,6 +383,10 @@ impl Theme {
     pub fn rainbow_length(&self) -> usize {
         self.rainbow_length
     }
+
+    pub fn get_rainbow(&self, index: usize) -> Style {
+        self.highlights[index % self.rainbow_length]
+    }
 }
 
 fn default_rainbow() -> Vec<Style> {
-- 
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