87 lines
2.1 KiB
C#
87 lines
2.1 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Linq;
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namespace Pilz.UI;
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public class PaintingObjectListLayering
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{
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public PaintingObjectList ObjectList { get; private set; }
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public Dictionary<int, Func<PaintingObject, bool>> Conditions { get; private set; } = new Dictionary<int, Func<PaintingObject, bool>>();
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/// <summary>
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/// Get the order function will checkout the conditions.
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/// </summary>
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/// <returns>Returns true, if conditions are aviable, otherwise false.</returns>
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public bool EnableConditions
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{
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get
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{
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return Conditions.Any();
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}
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}
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/// <summary>
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/// Create a new instance of object list layer managing.
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/// </summary>
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/// <param name="list"></param>
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public PaintingObjectListLayering(PaintingObjectList list)
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{
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ObjectList = list;
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}
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/// <summary>
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/// Order all objects using the conditions. If no conditions are setted, this method will do nothing.
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/// </summary>
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public void OrderAll()
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{
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if (EnableConditions)
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OrderAllPrivate();
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}
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private void OrderAllPrivate()
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{
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var list = ObjectList;
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var listOld = list.ToList();
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var toRemove = new List<PaintingObject>();
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// Disable raising events
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ObjectList.EnableRaisingEvents = false;
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// Clear list
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list.Clear();
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// Add ordered
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foreach (var kvp in Conditions.OrderBy(n => n.Key))
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{
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var func = kvp.Value;
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foreach (PaintingObject obj in listOld)
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{
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if (func(obj))
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{
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// Add to list
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list.Add(obj);
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// Add to remove
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toRemove.Add(obj);
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}
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}
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// Remove remembered objects
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foreach (PaintingObject obj in toRemove)
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listOld.Remove(obj);
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toRemove.Clear();
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}
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// Enable raising events
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ObjectList.EnableRaisingEvents = true;
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// Refresh
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ObjectList.MyParent?.Refresh();
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}
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} |