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some exception handling

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This commit is contained in:
Ellpeck 2019-09-13 11:53:28 +02:00
parent 150d6f771a
commit 03923f91f6
3 changed files with 9 additions and 5 deletions
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10
MLEM.Ui/Elements/Element.cs
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@ -305,10 +305,12 @@ namespace MLEM.Ui.Elements {
if (this.SetHeightBasedOnChildren && this.Children.Count > 0) { if (this.SetHeightBasedOnChildren && this.Children.Count > 0) {
var lowest = this.GetLowestChild(e => !e.IsHidden); var lowest = this.GetLowestChild(e => !e.IsHidden);
var newHeight = (lowest.UnscrolledArea.Bottom - pos.Y + this.ScaledChildPadding.Y) / this.Scale; if (lowest != null) {
if (newHeight != this.size.Y) { var newHeight = (lowest.UnscrolledArea.Bottom - pos.Y + this.ScaledChildPadding.Y) / this.Scale;
this.size.Y = newHeight; if (newHeight != this.size.Y) {
this.ForceUpdateArea(); this.size.Y = newHeight;
this.ForceUpdateArea();
}
} }
} }
} }

3
MLEM.Ui/Elements/Image.cs
View file

@ -14,6 +14,7 @@ namespace MLEM.Ui.Elements {
set { set {
if (this.texture != value) { if (this.texture != value) {
this.texture = value; this.texture = value;
this.IsHidden = this.texture == null;
if (this.scaleToImage) if (this.scaleToImage)
this.SetAreaDirty(); this.SetAreaDirty();
} }
@ -42,7 +43,7 @@ namespace MLEM.Ui.Elements {
} }
protected override Point CalcActualSize(Rectangle parentArea) { protected override Point CalcActualSize(Rectangle parentArea) {
return this.scaleToImage ? this.texture.Size : base.CalcActualSize(parentArea); return this.texture != null && this.scaleToImage ? this.texture.Size : base.CalcActualSize(parentArea);
} }
public override void Draw(GameTime time, SpriteBatch batch, float alpha) { public override void Draw(GameTime time, SpriteBatch batch, float alpha) {

1
MLEM.Ui/Elements/Paragraph.cs
View file

@ -29,6 +29,7 @@ namespace MLEM.Ui.Elements {
set { set {
if (this.text != value) { if (this.text != value) {
this.text = value; this.text = value;
this.IsHidden = string.IsNullOrWhiteSpace(this.text);
this.SetAreaDirty(); this.SetAreaDirty();
} }
} }