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added priority to elements

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This commit is contained in:
Ellpeck 2019-08-12 14:44:42 +02:00
parent 44e57d9323
commit 09fbdfd54e
4 changed files with 63 additions and 29 deletions
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2
MLEM.Ui/Elements/AutoScaledText.cs
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@ -16,7 +16,7 @@ namespace MLEM.Ui.Elements {
get => this.text;
set {
this.text = value;
this.SetDirty();
this.SetAreaDirty();
}
}
public Color Color = Color.White;

86
MLEM.Ui/Elements/Element.cs
View file

@ -1,5 +1,6 @@
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
@ -10,7 +11,14 @@ using MLEM.Ui.Style;
namespace MLEM.Ui.Elements {
public abstract class Element {
private readonly List<Element> children = new List<Element>();
protected readonly List<Element> Children = new List<Element>();
private readonly List<Element> sortedChildren = new List<Element>();
protected List<Element> SortedChildren {
get {
this.UpdateSortedChildrenIfDirty();
return this.sortedChildren;
}
}
private Anchor anchor;
private Vector2 size;
private Point offset;
@ -23,7 +31,7 @@ namespace MLEM.Ui.Elements {
if (this.anchor == value)
return;
this.anchor = value;
this.SetDirty();
this.SetAreaDirty();
}
}
public Vector2 Size {
@ -32,7 +40,7 @@ namespace MLEM.Ui.Elements {
if (this.size == value)
return;
this.size = value;
this.SetDirty();
this.SetAreaDirty();
}
}
public Vector2 ScaledSize => this.size * this.Scale;
@ -42,7 +50,7 @@ namespace MLEM.Ui.Elements {
if (this.offset == value)
return;
this.offset = value;
this.SetDirty();
this.SetAreaDirty();
}
}
public Point ScaledOffset => this.offset.Multiply(this.Scale);
@ -52,7 +60,7 @@ namespace MLEM.Ui.Elements {
if (this.childPadding == value)
return;
this.childPadding = value;
this.SetDirty();
this.SetAreaDirty();
}
}
public Point ScaledChildPadding => this.childPadding.Multiply(this.Scale);
@ -87,7 +95,7 @@ namespace MLEM.Ui.Elements {
if (this.isHidden == value)
return;
this.isHidden = value;
this.SetDirty();
this.SetAreaDirty();
}
}
public bool IgnoresMouse;
@ -111,7 +119,17 @@ namespace MLEM.Ui.Elements {
return padded;
}
}
private int priority;
public int Priority {
get => this.priority;
set {
this.priority = value;
if (this.Parent != null)
this.Parent.SetSortedChildrenDirty();
}
}
private bool areaDirty;
private bool sortedChildrenDirty;
public Element(Anchor anchor, Vector2 size) {
this.anchor = anchor;
@ -122,26 +140,28 @@ namespace MLEM.Ui.Elements {
this.OnSelected += element => this.IsSelected = true;
this.OnDeselected += element => this.IsSelected = false;
this.SetDirty();
this.SetAreaDirty();
}
public T AddChild<T>(T element, int index = -1) where T : Element {
if (index < 0 || index > this.children.Count)
index = this.children.Count;
this.children.Insert(index, element);
if (index < 0 || index > this.Children.Count)
index = this.Children.Count;
this.Children.Insert(index, element);
element.Parent = this;
element.PropagateRoot(this.Root);
element.PropagateUiSystem(this.System);
this.SetDirty();
this.SetSortedChildrenDirty();
this.SetAreaDirty();
return element;
}
public void RemoveChild(Element element) {
this.children.Remove(element);
this.Children.Remove(element);
element.Parent = null;
element.PropagateRoot(null);
element.PropagateUiSystem(null);
this.SetDirty();
this.SetSortedChildrenDirty();
this.SetAreaDirty();
}
public void MoveToFront() {
@ -158,10 +178,24 @@ namespace MLEM.Ui.Elements {
}
}
public void SetDirty() {
public void SetAreaDirty() {
this.areaDirty = true;
if (this.Anchor >= Anchor.AutoLeft && this.Parent != null)
this.Parent.SetDirty();
this.Parent.SetAreaDirty();
}
public void SetSortedChildrenDirty() {
this.sortedChildrenDirty = true;
}
public void UpdateSortedChildrenIfDirty() {
if (this.sortedChildrenDirty) {
this.sortedChildrenDirty = false;
this.sortedChildren.Clear();
this.sortedChildren.AddRange(this.Children);
this.sortedChildren.Sort((e1, e2) => e1.Priority.CompareTo(e1.Priority));
}
}
public void UpdateAreaIfDirty() {
@ -259,12 +293,12 @@ namespace MLEM.Ui.Elements {
}
this.area = new Rectangle(pos, actualSize);
foreach (var child in this.children)
foreach (var child in this.Children)
child.ForceUpdateArea();
if (this.SetHeightBasedOnChildren) {
var height = 0;
foreach (var child in this.children) {
foreach (var child in this.Children) {
if (!child.isHidden && (child.Anchor <= Anchor.TopRight || child.Anchor >= Anchor.AutoLeft) && child.area.Bottom > height)
height = child.area.Bottom;
}
@ -289,7 +323,7 @@ namespace MLEM.Ui.Elements {
return null;
Element lastChild = null;
foreach (var child in this.Parent.children) {
foreach (var child in this.Parent.Children) {
if (!hiddenAlso && child.IsHidden)
continue;
if (child == this)
@ -300,19 +334,19 @@ namespace MLEM.Ui.Elements {
}
public virtual void Update(GameTime time) {
foreach (var child in this.children)
foreach (var child in this.SortedChildren)
child.Update(time);
}
public virtual void Draw(GameTime time, SpriteBatch batch, float alpha) {
foreach (var child in this.children) {
foreach (var child in this.SortedChildren) {
if (!child.IsHidden)
child.Draw(time, batch, alpha * child.DrawAlpha);
}
}
public virtual void DrawUnbound(GameTime time, SpriteBatch batch, float alpha, float scale, BlendState blendState = null, SamplerState samplerState = null) {
foreach (var child in this.children) {
foreach (var child in this.SortedChildren) {
if (!child.IsHidden)
child.DrawUnbound(time, batch, alpha * child.DrawAlpha, scale, blendState, samplerState);
}
@ -323,8 +357,8 @@ namespace MLEM.Ui.Elements {
return null;
if (!this.Area.Contains(this.MousePos))
return null;
for (var i = this.children.Count - 1; i >= 0; i--) {
var element = this.children[i].GetMousedElement();
for (var i = this.SortedChildren.Count - 1; i >= 0; i--) {
var element = this.SortedChildren[i].GetMousedElement();
if (element != null)
return element;
}
@ -344,19 +378,19 @@ namespace MLEM.Ui.Elements {
internal void PropagateUiSystem(UiSystem system) {
this.System = system;
foreach (var child in this.children)
foreach (var child in this.Children)
child.PropagateUiSystem(system);
}
internal void PropagateRoot(RootElement root) {
this.Root = root;
foreach (var child in this.children)
foreach (var child in this.Children)
child.PropagateRoot(root);
}
internal void PropagateInput(Keys key, char character) {
this.OnTextInput?.Invoke(this, key, character);
foreach (var child in this.children)
foreach (var child in this.Children)
child.PropagateInput(key, character);
}

2
MLEM.Ui/Elements/Paragraph.cs
View file

@ -21,7 +21,7 @@ namespace MLEM.Ui.Elements {
get => this.text;
set {
this.text = value;
this.SetDirty();
this.SetAreaDirty();
}
}

2
MLEM.Ui/UiSystem.cs
View file

@ -34,7 +34,7 @@ namespace MLEM.Ui {
this.style = value;
foreach (var root in this.rootElements) {
root.Element.PropagateUiSystem(this);
root.Element.SetDirty();
root.Element.SetAreaDirty();
}
}
}