From 3ad14dda612c715b5a37dc3e00bc0d1351949537 Mon Sep 17 00:00:00 2001
From: Robob27 <robertgoodberry@robertgoodberry.com>
Date: Sun, 10 Nov 2024 17:52:26 -0500
Subject: [PATCH] Customizable scroll label text pens

---
 docs/dev/Lua API.rst                | 9 +++++++--
 library/lua/gui/widgets/tab_bar.lua | 8 ++++++++
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/docs/dev/Lua API.rst b/docs/dev/Lua API.rst
index 196b50465f..53adad0f71 100644
--- a/docs/dev/Lua API.rst	
+++ b/docs/dev/Lua API.rst	
@@ -6234,9 +6234,14 @@ of content.
 :scroll_key_back: Specifies a keybinding that can be used to scroll the tabs to the left.
                   Defaults to ``CUSTOM_ALT_Y``.
 :scroll_left_text: The text to display on the left scroll label.
-                   Defaults to ``<<<``.
+                   Defaults to "<<<".
 :scroll_right_text: The text to display on the right scroll label.
-                    Defaults to ``>>>``.
+                    Defaults to ">>>".
+:scroll_label_text_pen: The pen to use for the scroll label text.
+                        Defaults to ``Label`` default.
+:scroll_label_text_hpen: The pen to use for the scroll label text when hovered.
+                         Defaults to ``scroll_label_text_pen`` with the background
+                         and foreground colors swapped.
 :scroll_step: The number of units to scroll tabs by.
               Defaults to 10.
 :fast_scroll_multiplier: The multiplier for fast scrolling (holding shift).
diff --git a/library/lua/gui/widgets/tab_bar.lua b/library/lua/gui/widgets/tab_bar.lua
index cd0fe618b7..f5a113573e 100644
--- a/library/lua/gui/widgets/tab_bar.lua
+++ b/library/lua/gui/widgets/tab_bar.lua
@@ -142,6 +142,8 @@ end
 ---@field scroll_key_back string
 ---@field fast_scroll_modifier integer
 ---@field scroll_into_view_offset integer
+---@field scroll_label_text_pen dfhack.pen
+---@field scroll_label_text_hpen dfhack.pen
 
 ---@class widgets.TabBar.attrs.partial: widgets.TabBar.attrs
 
@@ -170,6 +172,8 @@ TabBar.ATTRS{
     scroll_key_back = 'CUSTOM_ALT_Y',
     fast_scroll_modifier = 3,
     scroll_into_view_offset = 5,
+    scroll_label_text_pen = DEFAULT_NIL,
+    scroll_label_text_hpen = DEFAULT_NIL,
 }
 
 ---@param self widgets.TabBar
@@ -214,6 +218,8 @@ function TabBar:init()
         Label{
           view_id='TabBar__scroll_left',
           frame={t=0, l=0, w=#self.scroll_left_text},
+          text_pen=self.scroll_label_text_pen,
+          text_hpen=self.scroll_label_text_hpen,
           text=self.scroll_left_text,
           visible = false,
           on_click=function()
@@ -223,6 +229,8 @@ function TabBar:init()
         Label{
           view_id='TabBar__scroll_right',
           frame={t=0, l=0, w=#self.scroll_right_text},
+          text_pen=self.scroll_label_text_pen,
+          text_hpen=self.scroll_label_text_hpen,
           text=self.scroll_right_text,
           visible = false,
           on_click=function()