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improve ui root sorting

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This commit is contained in:
Ellpeck 2019-12-25 12:15:55 +01:00
parent a0f0859ba2
commit ac8b09e74f
2 changed files with 24 additions and 23 deletions
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1
MLEM.Ui/Elements/Element.cs
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@ -180,7 +180,6 @@ namespace MLEM.Ui.Elements {
if (this.Root != null)
this.Root.OnElementRemoved(e);
});
this.SetSortedChildrenDirty();
this.SetAreaDirty();
}

46
MLEM.Ui/UiSystem.cs
View file

@ -124,18 +124,10 @@ namespace MLEM.Ui {
}
public RootElement Add(string name, Element element) {
if (this.IndexOf(name) >= 0)
return null;
var root = new RootElement(name, element, this);
return !this.Add(root, true) ? null : root;
}
internal bool Add(RootElement root, bool notify, int index = -1) {
if (this.IndexOf(root.Name) >= 0)
return false;
if (index < 0 || index > this.rootElements.Count)
index = this.rootElements.Count;
this.rootElements.Insert(index, root);
if (!notify)
return true;
this.rootElements.Add(root);
root.Element.AndChildren(e => {
e.Root = root;
e.System = this;
@ -143,20 +135,15 @@ namespace MLEM.Ui {
e.SetAreaDirty();
});
this.OnRootAdded?.Invoke(root);
return true;
this.SortRoots();
return root;
}
public void Remove(string name) {
this.Remove(name, true);
}
internal void Remove(string name, bool notify) {
var root = this.Get(name);
if (root == null)
return;
this.rootElements.Remove(root);
if (!notify)
return;
root.SelectElement(null);
root.Element.AndChildren(e => {
e.Root = null;
@ -176,6 +163,13 @@ namespace MLEM.Ui {
return this.rootElements.FindIndex(element => element.Name == name);
}
internal void SortRoots() {
// Normal list sorting isn't stable, but ordering is
var sorted = this.rootElements.OrderBy(root => root.Priority).ToArray();
this.rootElements.Clear();
this.rootElements.AddRange(sorted);
}
public IEnumerable<RootElement> GetRootElements() {
for (var i = this.rootElements.Count - 1; i >= 0; i--)
yield return this.rootElements[i];
@ -205,6 +199,14 @@ namespace MLEM.Ui {
this.Element.ForceUpdateArea();
}
}
private int priority;
public int Priority {
get => this.priority;
set {
this.priority = value;
this.System.SortRoots();
}
}
public float ActualScale => this.System.GlobalScale * this.Scale;
public Matrix Transform = Matrix.Identity;
@ -243,14 +245,14 @@ namespace MLEM.Ui {
this.System.OnSelectedElementChanged?.Invoke(element);
}
[Obsolete("Use the Priority property for greater control")]
public void MoveToFront() {
this.System.Remove(this.Name, false);
this.System.Add(this, false);
this.Priority = 10000;
}
[Obsolete("Use the Priority property for greater control")]
public void MoveToBack() {
this.System.Remove(this.Name, false);
this.System.Add(this, false, 0);
this.Priority = -10000;
}
}