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Fixed scrolling panels calculating their height incorrectly when their first child is hidden

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Ell 2024-03-30 12:24:57 +01:00
parent 5d4f1293c7
commit 7f4cc773ec
2 changed files with 6 additions and 5 deletions
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1
CHANGELOG.md
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@ -51,6 +51,7 @@ Improvements
Fixes
- Fixed panels updating their relevant children too much when the scroll bar is hidden
- Fixed a stack overflow exception when a panel's scroll bar auto-hiding causes elements to gain height
- Fixed scrolling panels calculating their height incorrectly when their first child is hidden
### MLEM.Extended
Improvements

10
MLEM.Ui/Elements/Panel.cs
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@ -223,10 +223,10 @@ namespace MLEM.Ui.Elements {
/// </summary>
/// <param name="elementY">The y coordinate to scroll to, which should have this element's <see cref="Element.Scale"/> applied.</param>
public void ScrollToElement(float elementY) {
var firstChild = this.Children.FirstOrDefault(c => c != this.ScrollBar);
if (firstChild == null)
var highestValidChild = this.Children.FirstOrDefault(c => c != this.ScrollBar && !c.IsHidden);
if (highestValidChild == null)
return;
this.ScrollBar.CurrentValue = (elementY - this.Area.Height / 2 - firstChild.Area.Top) / this.Scale + this.ChildPadding.Value.Height / 2;
this.ScrollBar.CurrentValue = (elementY - this.Area.Height / 2 - highestValidChild.Area.Top) / this.Scale + this.ChildPadding.Value.Height / 2;
}
/// <inheritdoc />
@ -282,9 +282,9 @@ namespace MLEM.Ui.Elements {
float childrenHeight;
if (this.Children.Count > 1) {
var firstChild = this.Children.FirstOrDefault(c => c != this.ScrollBar);
var highestValidChild = this.Children.FirstOrDefault(c => c != this.ScrollBar && !c.IsHidden);
var lowestChild = this.GetLowestChild(c => c != this.ScrollBar && !c.IsHidden, true);
childrenHeight = lowestChild.GetTotalCoveredArea(false).Bottom - firstChild.Area.Top;
childrenHeight = lowestChild.GetTotalCoveredArea(false).Bottom - highestValidChild.Area.Top;
} else {
// if we only have one child (the scroll bar), then the children take up no visual height
childrenHeight = 0;