using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Windows.Forms;

namespace FastReport.Dialog
{
    /// <summary>
    /// Represents a Windows control to display a list of items.
    /// Wraps the <see cref="System.Windows.Forms.ListBox"/> control.
    /// </summary>
    public class ListBoxControl : ListBoxBaseControl
    {
        private ListBox listBox;

        #region Properties
        /// <summary>
        /// Gets an internal <b>ListBox</b>.
        /// </summary>
        [Browsable(false)]
        public ListBox ListBox
        {
            get { return listBox; }
        }
        #endregion

        #region Protected Methods
        /// <inheritdoc/>
        protected override object GetValue()
        {
            List<string> list = new List<string>();
            foreach (object item in SelectedItems)
            {
                list.Add((string)item);
            }
            return list.ToArray();
        }
        #endregion

        #region Public Methods
        /// <inheritdoc/>
        public override void OnSelectedIndexChanged(EventArgs e)
        {
            OnFilterChanged();
            base.OnSelectedIndexChanged(e);
        }
        #endregion

        /// <summary>
        /// Initializes a new instance of the <b>ListBoxControl</b> class with default settings. 
        /// </summary>
        public ListBoxControl()
        {
            listBox = new ListBox();
            Control = listBox;
            ListBox.IntegralHeight = false;
            BindableProperty = this.GetType().GetProperty("SelectedItem");
        }
    }
}