From ca9854451dd3266c6f098a006549c70f26f4b368 Mon Sep 17 00:00:00 2001
From: Pascal Abresch <nep-git@packageloss.eu>
Date: Wed, 2 Oct 2024 01:04:19 +0200
Subject: [PATCH] TextControl: Make background of invalid control red

Co-Authored-By: Niklas Poslovski <ni.pos@yandex.com>
Change-Id: Idd6aa8984aab5d8a8aee81bade23946b88f2497e
Reviewed-on: https://review.haiku-os.org/c/haiku/+/8428
Reviewed-by: nephele nephele <nep-git@packageloss.eu>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Haiku-Format: Haiku-format Bot <no-reply+haikuformatbot@haiku-os.org>
Reviewed-by: John Scipione <jscipione@gmail.com>
---
 src/kits/interface/TextControl.cpp | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/kits/interface/TextControl.cpp b/src/kits/interface/TextControl.cpp
index 4e1bfc36c9..b4a26831c4 100644
--- a/src/kits/interface/TextControl.cpp
+++ b/src/kits/interface/TextControl.cpp
@@ -19,6 +19,7 @@
 
 #include <AbstractLayoutItem.h>
 #include <ControlLook.h>
+#include <HSL.h>
 #include <LayoutUtils.h>
 #include <Message.h>
 #include <PropertyInfo.h>
@@ -470,7 +471,8 @@ BTextControl::MessageReceived(BMessage* message)
 		if (message->HasColor(ui_color_name(B_PANEL_BACKGROUND_COLOR))
 			|| message->HasColor(ui_color_name(B_PANEL_TEXT_COLOR))
 			|| message->HasColor(ui_color_name(B_DOCUMENT_BACKGROUND_COLOR))
-			|| message->HasColor(ui_color_name(B_DOCUMENT_TEXT_COLOR))) {
+			|| message->HasColor(ui_color_name(B_DOCUMENT_TEXT_COLOR))
+			|| message->HasColor(ui_color_name(B_FAILURE_COLOR))) {
 			_UpdateTextViewColors(IsEnabled());
 		}
 	}
@@ -595,8 +597,10 @@ BTextControl::MarkAsInvalid(bool invalid)
 	else
 		fLook &= ~BControlLook::B_INVALID;
 
-	if (look != fLook)
+	if (look != fLook) {
+		_UpdateTextViewColors(IsEnabled());
 		Invalidate();
+	}
 }
 
 
@@ -1045,6 +1049,18 @@ BTextControl::_UpdateTextViewColors(bool enable)
 	if (!enable) {
 		textColor = disable_color(textColor, ViewColor());
 		viewColor = disable_color(ViewColor(), viewColor);
+	} else if (fLook & BControlLook::B_INVALID) {
+		hsl_color normalViewColor = hsl_color::from_rgb(viewColor);
+		rgb_color failureColor = ui_color(B_FAILURE_COLOR);
+		hsl_color newViewColor = hsl_color::from_rgb(failureColor);
+		if (normalViewColor.lightness < 0.15)
+			newViewColor.lightness = 0.15;
+		else if (normalViewColor.lightness > 0.95)
+			newViewColor.lightness = 0.95;
+		else
+			newViewColor.lightness = normalViewColor.lightness;
+
+		viewColor = newViewColor.to_rgb();
 	}
 
 	fText->SetFontAndColor(&font, B_FONT_ALL, &textColor);