From 4333d6f8a38f1044feb7273d9978af268044cbc3 Mon Sep 17 00:00:00 2001
From: WMJ <wmj@live.cn>
Date: Thu, 5 Dec 2024 15:32:17 +0800
Subject: [PATCH] ! Make Quick Info background change according to tooltip text
 color

---
 .../QuickInfoBackgroundController.cs          | 26 +++++++++++++++++++
 Codist/SyntaxHighlight/FormatStore.cs         |  5 ----
 2 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/Codist/QuickInfo/QuickInfoBackgroundController.cs b/Codist/QuickInfo/QuickInfoBackgroundController.cs
index bd0009cb..762fb02a 100644
--- a/Codist/QuickInfo/QuickInfoBackgroundController.cs
+++ b/Codist/QuickInfo/QuickInfoBackgroundController.cs
@@ -6,11 +6,32 @@
 using System.Windows.Media;
 using CLR;
 using Microsoft.VisualStudio.Language.Intellisense;
+using Microsoft.VisualStudio.Text.Classification;
 
 namespace Codist.QuickInfo
 {
 	sealed class QuickInfoBackgroundController : SingletonQuickInfoSource
 	{
+		#region Adaptive background brightness
+		static readonly IClassificationFormatMap __ToolTipFormatMap = InitFormatMap();
+		static bool __Init;
+
+		static IClassificationFormatMap InitFormatMap() {
+			var m = ServicesHelper.Instance.ClassificationFormatMap.GetClassificationFormatMap("tooltip");
+			m.ClassificationFormatMappingChanged += (s, args) => AdaptBackgroundBrightness(__ToolTipFormatMap);
+			return m;
+		}
+
+		static void AdaptBackgroundBrightness(IClassificationFormatMap formatMap) {
+			QuickInfoConfig c = Config.Instance.QuickInfo;
+			if (c.BackColor.A != 0
+				&& formatMap.DefaultTextProperties.ForegroundBrush is SolidColorBrush b
+				&& b.Color.IsDark() == c.BackColor.IsDark()) {
+				c.BackColor = c.BackColor.InvertBrightness();
+			}
+		}
+		#endregion
+
 		SolidColorBrush _Background;
 
 		public QuickInfoBackgroundController() {
@@ -20,11 +41,16 @@ public QuickInfoBackgroundController() {
 
 		void ConfigUpdated(ConfigUpdatedEventArgs args) {
 			if (args.UpdatedFeature.MatchFlags(Features.SuperQuickInfo)) {
+				AdaptBackgroundBrightness(__ToolTipFormatMap);
 				UpdateBackgroundBrush();
 			}
 		}
 
 		void UpdateBackgroundBrush() {
+			if (__Init == false) {
+				__Init = true;
+				AdaptBackgroundBrightness(__ToolTipFormatMap);
+			}
 			var bc = Config.Instance.QuickInfo.BackColor;
 			var o = bc.A;
 			if (o != 0) {
diff --git a/Codist/SyntaxHighlight/FormatStore.cs b/Codist/SyntaxHighlight/FormatStore.cs
index 282197a7..5e8afa1b 100644
--- a/Codist/SyntaxHighlight/FormatStore.cs
+++ b/Codist/SyntaxHighlight/FormatStore.cs
@@ -806,11 +806,6 @@ void InvertColorBrightness() {
 					}
 				}
 
-				var qi = Config.Instance.QuickInfo;
-				if (qi.BackColor.A != 0) {
-					qi.BackColor = qi.BackColor.InvertBrightness();
-					Config.Instance.FireConfigChangedEvent(Features.SuperQuickInfo);
-				}
 				var sm = Config.Instance.SymbolReferenceMarkerSettings;
 				if (sm.ReferenceMarker.A != 0 || sm.WriteMarker.A != 0 || sm.SymbolDefinition.A != 0) {
 					if (sm.ReferenceMarker.A != 0) {