From 539b874b7617f0b5acc0eea5399609dabba15e2b Mon Sep 17 00:00:00 2001
From: Joursoir <chat@joursoir.net>
Date: Mon, 29 Nov 2021 01:14:12 +0300
Subject: panel: add support for highlighting

---
 Library/UefiShellUfmCommandLib/panel.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/Library/UefiShellUfmCommandLib/panel.c b/Library/UefiShellUfmCommandLib/panel.c
index 39439fc..d242df6 100644
--- a/Library/UefiShellUfmCommandLib/panel.c
+++ b/Library/UefiShellUfmCommandLib/panel.c
@@ -14,6 +14,28 @@
 #define SIZE_COLS 7
 #define MODIFYTIME_COLS 12
 
+STATIC VOID highlight_line(struct panel_ctx *p, UINTN line, INT32 fg, INT32 bg)
+{
+	CHAR16 *str;
+	INT32 attr;
+	UINTN ui_line;
+
+	ui_line = (line-1) % p->list_lines;
+	attr = p->wlist->attr[ui_line][0];
+	if(fg < 0x0)
+		fg = attr & 0x0F;
+	if(bg < 0x0)
+		bg = ((attr & 0xF0) >> 4);
+	attr = EFI_TEXT_ATTR(fg, bg);
+	
+	wattrset(p->wlist, attr);
+	str = p->wlist->text[ui_line];
+	mvwprintf(p->wlist, 0, ui_line, str);
+	wattroff(p->wlist);
+
+	wrefresh(p->wlist);
+}
+
 STATIC VOID set_cwd(struct panel_ctx *p, CONST CHAR16 *path)
 {
 	if(p->cwd) {
-- 
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