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added a bound check for the auto-calculated scroller size

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Ell 2021-11-08 02:11:05 +01:00
parent 6d554faaac
commit dc15a9139f
1 changed files with 5 additions and 5 deletions
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4
MLEM.Ui/Elements/Panel.cs
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@ -229,13 +229,13 @@ namespace MLEM.Ui.Elements {
// the max value of the scrollbar is the amount of non-scaled pixels taken up by overflowing components // the max value of the scrollbar is the amount of non-scaled pixels taken up by overflowing components
var scrollBarMax = (childrenHeight - this.ChildPaddedArea.Height) / this.Scale; var scrollBarMax = (childrenHeight - this.ChildPaddedArea.Height) / this.Scale;
if (this.ScrollBar.MaxValue != scrollBarMax) { if (!this.ScrollBar.MaxValue.Equals(scrollBarMax, Epsilon)) {
this.ScrollBar.MaxValue = scrollBarMax; this.ScrollBar.MaxValue = scrollBarMax;
this.relevantChildrenDirty = true; this.relevantChildrenDirty = true;
} }
// the scroller height has the same relation to the scroll bar height as the visible area has to the total height of the panel's content // the scroller height has the same relation to the scroll bar height as the visible area has to the total height of the panel's content
var scrollerHeight = this.ChildPaddedArea.Height / childrenHeight / this.Scale * this.ScrollBar.Area.Height; var scrollerHeight = Math.Min(this.ChildPaddedArea.Height / childrenHeight / this.Scale, 1) * this.ScrollBar.Area.Height;
this.ScrollBar.ScrollerSize = new Vector2(this.ScrollerSize.Value.X, Math.Max(this.ScrollerSize.Value.Y, scrollerHeight)); this.ScrollBar.ScrollerSize = new Vector2(this.ScrollerSize.Value.X, Math.Max(this.ScrollerSize.Value.Y, scrollerHeight));
// update the render target // update the render target