From 73f9653ddcfe8ae3d239b2dea009cf3913331c77 Mon Sep 17 00:00:00 2001
From: Ellpeck <megamaximal@gmail.com>
Date: Sat, 28 Dec 2019 14:23:40 +0100
Subject: [PATCH] made tooltips groups so that more stuff can be added to them
 easily

---
 MLEM.Ui/Elements/Tooltip.cs | 52 +++++++++++++++++++++++--------------
 1 file changed, 32 insertions(+), 20 deletions(-)

diff --git a/MLEM.Ui/Elements/Tooltip.cs b/MLEM.Ui/Elements/Tooltip.cs
index 09d8e2d..fda0a3e 100644
--- a/MLEM.Ui/Elements/Tooltip.cs
+++ b/MLEM.Ui/Elements/Tooltip.cs
@@ -5,18 +5,26 @@ using MLEM.Font;
 using MLEM.Ui.Style;
 
 namespace MLEM.Ui.Elements {
-    public class Tooltip : Paragraph {
+    public class Tooltip : Group {
 
         public Vector2 MouseOffset = new Vector2(2, 3);
+        public Paragraph Paragraph;
 
-        public Tooltip(float width, string text, Element elementToHover = null) :
-            base(Anchor.TopLeft, width, text) {
-            this.AutoAdjustWidth = true;
-            this.Padding = new Vector2(2);
-            this.CanBeSelected = false;
+        public Tooltip(float width, string text = null, Element elementToHover = null) :
+            base(Anchor.TopLeft, Vector2.One) {
+            if (text != null) {
+                this.Paragraph = this.AddChild(new Paragraph(Anchor.TopLeft, width, text));
+                this.Paragraph.AutoAdjustWidth = true;
+                this.Paragraph.Padding = new Vector2(2);
+                this.SetWidthBasedOnChildren = true;
+            }
+            this.CanBeMoused = false;
 
             if (elementToHover != null) {
-                elementToHover.OnMouseEnter += element => element.System.Add(element.GetType().Name + "Tooltip", this);
+                elementToHover.OnMouseEnter += element => {
+                    element.System.Add(element.GetType().Name + "Tooltip", this);
+                    this.SnapPositionToMouse();
+                };
                 elementToHover.OnMouseExit += element => {
                     if (this.System != null)
                         this.System.Remove(element.GetType().Name + "Tooltip");
@@ -26,7 +34,24 @@ namespace MLEM.Ui.Elements {
 
         public override void Update(GameTime time) {
             base.Update(time);
+            this.SnapPositionToMouse();
+        }
 
+        public override void ForceUpdateArea() {
+            if (this.Parent != null)
+                throw new NotSupportedException($"A tooltip shouldn't be the child of another element ({this.Parent})");
+            base.ForceUpdateArea();
+        }
+
+        protected override void InitStyle(UiStyle style) {
+            base.InitStyle(style);
+            if (this.Paragraph != null) {
+                this.Paragraph.Background.SetFromStyle(style.TooltipBackground);
+                this.Paragraph.BackgroundColor.SetFromStyle(style.TooltipBackgroundColor);
+            }
+        }
+
+        public void SnapPositionToMouse() {
             var viewport = this.System.Viewport.Size;
             var offset = this.Input.MousePosition.ToVector2() / this.Scale + this.MouseOffset;
             if (offset.X < 0)
@@ -39,18 +64,5 @@ namespace MLEM.Ui.Elements {
                 offset.Y = (viewport.Y - this.Area.Height) / this.Scale;
             this.PositionOffset = offset;
         }
-
-        public override void ForceUpdateArea() {
-            if (this.Parent != null)
-                throw new NotSupportedException($"A tooltip shouldn't be the child of another element ({this.Parent})");
-            base.ForceUpdateArea();
-        }
-
-        protected override void InitStyle(UiStyle style) {
-            base.InitStyle(style);
-            this.Background.SetFromStyle(style.TooltipBackground);
-            this.BackgroundColor.SetFromStyle(style.TooltipBackgroundColor);
-        }
-
     }
 }
\ No newline at end of file