Fixed panels sometimes not drawing children that came into view when their positions changed unexpectedly

CHANGELOG.md

@@ -10,6 +10,7 @@ Jump to version:
 - [5.0.0](#500)
 
 ## 6.1.0
+
 ### MLEM
 Improvements
 - Improved EnumHelper.GetValues signature to return an array
@@ -22,6 +23,11 @@ Improvements
 - Allow elements to auto-adjust their size even when their children are aligned oddly
 - Close other dropdowns when opening a dropdown
 
+Fixes
+- Fixed parents of elements that prevent spill not being notified properly
+- Fixed paragraphs sometimes not updating their position properly when hidden because they're empty
+- Fixed panels sometimes not drawing children that came into view when their positions changed unexpectedly
+
 ### MLEM.Data
 Improvements
 - Allow data texture atlas pivots and offsets to be negative
@@ -31,6 +37,7 @@ Fixes
 - Fixed data texture atlases not allowing most characters in their region names
 
 ## 6.0.0
+
 ### MLEM
 Additions
 - Added consuming variants of IsPressed methods to InputHandler and Keybind
@@ -117,6 +124,7 @@ Improvements
 - Updated to MonoGame 3.8.1
 
 ## 5.3.0
+
 ### MLEM
 Additions
 - Added StringBuilder overloads to GenericFont
@@ -201,6 +209,7 @@ Removals
 - Marked CopyExtensions as obsolete
 
 ## 5.2.0
+
 ### MLEM
 Additions
 - Added a strikethrough formatting code
@@ -275,6 +284,7 @@ Additions
 - Added PreDraw and PreUpdate events and coroutine events
 
 ## 5.1.0
+
 ### MLEM
 Additions
 - Added RotateBy to Direction2Helper
@@ -325,6 +335,7 @@ Fixes
 - Fixed DynamicEnum AddFlag going into an infinite loop
 
 ## 5.0.0
+
 ### MLEM
 Additions
 - Added some Collection extensions, namely for dealing with combinations

MLEM.Ui/Elements/Element.cs

@@ -1125,7 +1125,7 @@ namespace MLEM.Ui.Elements {
         /// <param name="grandchild">Whether the <paramref name="child"/> is a grandchild of this element, rather than a direct child.</param>
         protected virtual void OnChildAreaDirty(Element child, bool grandchild) {
             if (!grandchild) {
-                if (child.Anchor.IsAuto() || this.SetWidthBasedOnChildren || this.SetHeightBasedOnChildren)
+                if (child.Anchor.IsAuto() || child.PreventParentSpill || this.SetWidthBasedOnChildren || this.SetHeightBasedOnChildren)
                     this.SetAreaDirty();
             }
             this.Parent?.OnChildAreaDirty(child, true);

MLEM.Ui/Elements/Panel.cs

@@ -118,15 +118,11 @@ namespace MLEM.Ui.Elements {
         private void ScrollChildren() {
             if (!this.scrollOverflow)
                 return;
-            var offset = new Vector2(0, -this.ScrollBar.CurrentValue);
             // we ignore false grandchildren so that the children of the scroll bar stay in place
-            foreach (var child in this.GetChildren(c => c != this.ScrollBar, true, true)) {
-                if (!child.ScrollOffset.Equals(offset, Element.Epsilon)) {
-                    child.ScrollOffset = offset;
+            foreach (var child in this.GetChildren(c => c != this.ScrollBar, true, true))
+                child.ScrollOffset.Y = -this.ScrollBar.CurrentValue;
             this.relevantChildrenDirty = true;
         }
-            }
-        }
 
         /// <inheritdoc />
         public override void ForceUpdateSortedChildren() {

MLEM.Ui/Elements/Paragraph.cs

@@ -110,7 +110,7 @@ namespace MLEM.Ui.Elements {
         private string text;
         private StyleProp<TextAlignment> alignment;
         private StyleProp<GenericFont> regularFont;
-        private bool forceHide;
+        private bool forceHide = true;
 
         /// <summary>
         /// Creates a new paragraph with the given settings.