From bcb6ee6db676c6f6c05fbb3ab43aa66c6b7b1433 Mon Sep 17 00:00:00 2001
From: Qwerasd <qwerasd205@users.noreply.github.com>
Date: Mon, 7 Jul 2025 09:43:33 -0600
Subject: [PATCH] config: add adjust-icon-height option

Metric modifier for the `icon_height` metric.
---
 src/config/Config.zig      | 12 ++++++++++++
 src/font/SharedGridSet.zig |  3 +++
 2 files changed, 15 insertions(+)

diff --git a/src/config/Config.zig b/src/config/Config.zig
index a53986bc9..8ca8d3154 100644
--- a/src/config/Config.zig
+++ b/src/config/Config.zig
@@ -396,6 +396,18 @@ pub const compatibility = std.StaticStringMap(
 /// Thickness in pixels or percentage adjustment of box drawing characters.
 /// See the notes about adjustments in `adjust-cell-width`.
 @"adjust-box-thickness": ?MetricModifier = null,
+/// Height in pixels or percentage adjustment of maximum height for nerd font icons.
+///
+/// Increasing this value will allow nerd font icons to be larger, but won't
+/// necessarily force them to be. Decreasing this value will make nerd font
+/// icons smaller.
+///
+/// The default value for the icon height is 1.2 times the height of capital
+/// letters in your primary font, so something like -16.6% would make icons
+/// roughly the same height as capital letters.
+///
+/// See the notes about adjustments in `adjust-cell-width`.
+@"adjust-icon-height": ?MetricModifier = null,
 
 /// The method to use for calculating the cell width of a grapheme cluster.
 /// The default value is `unicode` which uses the Unicode standard to determine
diff --git a/src/font/SharedGridSet.zig b/src/font/SharedGridSet.zig
index b77b44f23..14a8babad 100644
--- a/src/font/SharedGridSet.zig
+++ b/src/font/SharedGridSet.zig
@@ -449,6 +449,7 @@ pub const DerivedConfig = struct {
     @"adjust-cursor-thickness": ?Metrics.Modifier,
     @"adjust-cursor-height": ?Metrics.Modifier,
     @"adjust-box-thickness": ?Metrics.Modifier,
+    @"adjust-icon-height": ?Metrics.Modifier,
     @"freetype-load-flags": font.face.FreetypeLoadFlags,
 
     /// Initialize a DerivedConfig. The config should be either a
@@ -488,6 +489,7 @@ pub const DerivedConfig = struct {
             .@"adjust-cursor-thickness" = config.@"adjust-cursor-thickness",
             .@"adjust-cursor-height" = config.@"adjust-cursor-height",
             .@"adjust-box-thickness" = config.@"adjust-box-thickness",
+            .@"adjust-icon-height" = config.@"adjust-icon-height",
             .@"freetype-load-flags" = if (font.face.FreetypeLoadFlags != void) config.@"freetype-load-flags" else {},
 
             // This must be last so the arena contains all our allocations
@@ -634,6 +636,7 @@ pub const Key = struct {
             if (config.@"adjust-cursor-thickness") |m| try set.put(alloc, .cursor_thickness, m);
             if (config.@"adjust-cursor-height") |m| try set.put(alloc, .cursor_height, m);
             if (config.@"adjust-box-thickness") |m| try set.put(alloc, .box_thickness, m);
+            if (config.@"adjust-icon-height") |m| try set.put(alloc, .icon_height, m);
             break :set set;
         };