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Fixed an exception when trying to force-update the area of an element without a ui system

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Ell 2022-09-19 15:02:36 +02:00
parent 02cf01fcb7
commit e8710f69e9
2 changed files with 3 additions and 2 deletions
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1
CHANGELOG.md
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@ -45,6 +45,7 @@ Fixes
- Fixed panels sometimes not drawing children that came into view when their positions changed unexpectedly
- Fixed UiMarkdownParser not parsing formatting in headings and blockquotes
- Fixed Element.OnChildAdded and Element.OnChildRemoved being called for grandchildren when a child is added
- Fixed an exception when trying to force-update the area of an element without a ui system
### MLEM.Data
Additions

4
MLEM.Ui/Elements/Element.cs
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@ -452,7 +452,7 @@ namespace MLEM.Ui.Elements {
/// The <see cref="ChildPaddedArea"/> of this element's <see cref="Parent"/>, or the <see cref="UiSystem.Viewport"/> if this element has no parent.
/// This value is the one that is passed to <see cref="CalcActualSize"/> during <see cref="ForceUpdateArea"/>.
/// </summary>
protected RectangleF ParentArea => this.Parent?.ChildPaddedArea ?? (RectangleF) this.system.Viewport;
protected RectangleF ParentArea => this.Parent?.ChildPaddedArea ?? (RectangleF) this.System.Viewport;
private readonly List<Element> children = new List<Element>();
private readonly Stopwatch stopwatch = new Stopwatch();
@ -601,7 +601,7 @@ namespace MLEM.Ui.Elements {
/// </summary>
public virtual void ForceUpdateArea() {
this.AreaDirty = false;
if (this.IsHidden)
if (this.IsHidden || this.System == null)
return;
// if the parent's area is dirty, it would get updated anyway when querying its ChildPaddedArea,
// which would cause our ForceUpdateArea code to be run twice, so we only update our parent instead