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made the scroll bar scroller only render when it actually makes sense

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Ellpeck 2019-12-26 12:35:47 +01:00
parent 969db1da1e
commit 4640a59054
1 changed files with 8 additions and 6 deletions
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14
MLEM.Ui/Elements/ScrollBar.cs
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@ -125,12 +125,14 @@ namespace MLEM.Ui.Elements {
public override void Draw(GameTime time, SpriteBatch batch, float alpha, BlendState blendState, SamplerState samplerState, Matrix matrix) {
batch.Draw(this.Background, this.DisplayArea, Color.White * alpha, this.Scale);
var scrollerPos = new Vector2(this.DisplayArea.X + this.ScrollerOffset.X, this.DisplayArea.Y + this.ScrollerOffset.Y);
var scrollerOffset = new Vector2(
!this.Horizontal ? 0 : this.currValue / this.maxValue * (this.DisplayArea.Width - this.ScrollerSize.X * this.Scale),
this.Horizontal ? 0 : this.currValue / this.maxValue * (this.DisplayArea.Height - this.ScrollerSize.Y * this.Scale));
var scrollerRect = new RectangleF(scrollerPos + scrollerOffset, this.ScrollerSize * this.Scale);
batch.Draw(this.ScrollerTexture, scrollerRect, Color.White * alpha, this.Scale);
if (this.MaxValue > 0) {
var scrollerPos = new Vector2(this.DisplayArea.X + this.ScrollerOffset.X, this.DisplayArea.Y + this.ScrollerOffset.Y);
var scrollerOffset = new Vector2(
!this.Horizontal ? 0 : this.currValue / this.maxValue * (this.DisplayArea.Width - this.ScrollerSize.X * this.Scale),
this.Horizontal ? 0 : this.currValue / this.maxValue * (this.DisplayArea.Height - this.ScrollerSize.Y * this.Scale));
var scrollerRect = new RectangleF(scrollerPos + scrollerOffset, this.ScrollerSize * this.Scale);
batch.Draw(this.ScrollerTexture, scrollerRect, Color.White * alpha, this.Scale);
}
base.Draw(time, batch, alpha, blendState, samplerState, matrix);
}