Worms4Editor/W4Gui/Components/CollectiveListBox.cs

using LibW4M.Data;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace W4Gui.Components
{
    public partial class CollectiveListBox : ListBox
    {
        public CollectiveListBox()
        {
            this.SelectedIndexChanged += selectedIndexChanged;
        }
        private int lastSelected = -1;
        public int LastSelected
        {
            get
            {
                return lastSelected;
            }
        }
        public int CurrentlySelected
        {
            get
            {
                return this.SelectedIndex;
            }
        }

        public bool IsItemSelected
        {
            get
            {
                return this.CurrentlySelected >= 0;
            }
        }

        private void unselectWithoutSaveTrigger()
        {
            this.lastSelected = -1;
            this.SelectedIndex = -1;
        }


        public event EventHandler<EventArgs> Unselected;
        public event EventHandler<EventArgs> Selected;


        protected virtual void OnUnselected(EventArgs e)
        {
            EventHandler<EventArgs> handler = Unselected;
            if (handler != null)
            {
                handler(this, e);
            }
        }
        protected virtual void OnSelected(EventArgs e)
        {
            EventHandler<EventArgs> handler = Selected;
            if (handler != null)
            {
                handler(this, e);
            }
        }

        private void selectedIndexChanged(object? sender, EventArgs e)
        {
            if (LastSelected >= 0 && LastSelected != CurrentlySelected)
                OnUnselected(e);

            if (CurrentlySelected >= 0 && LastSelected != CurrentlySelected)
                OnSelected(e);

            lastSelected = CurrentlySelected;
        }

        public void Add(string name)
        {
            this.Items.Add(name);
        }

        public void Delete(int idx)
        {
            unselectWithoutSaveTrigger();
            this.Items.RemoveAt(idx);
        }

        public void UpdateName(int idx, string name)
        {
            this.Items[idx] = name;
        }
        public void LoadCollective(SaveDataCollective collective)
        {
            unselectWithoutSaveTrigger();
            this.Items.Clear();
            for (int i = 0; i < collective.Length; i++)
            {
                string name = collective[i].FriendlyName;
                this.Items.Add(name);
            }
        }

    }
}