using System;
using System.ComponentModel;
using DevComponents.DotNetBar.Charts;

namespace DevComponents.Charts.Design
{
    public class DataLabelCollectionEditor : BaseCollectionEditor
    {
        #region Private variables

        private ChartSeries _ChartSeries;

        #endregion

        public DataLabelCollectionEditor(Type type)
            : base(type)
        {
        }

        #region EditValue

        public override object EditValue(
            ITypeDescriptorContext context, IServiceProvider provider, object value)
        {
            _ChartSeries = context.Instance as ChartSeries;

            return (base.EditValue(context, provider, value));
        }

        #endregion

        #region CreateInstance

        protected override object CreateInstance(Type itemType)
        {
            if (itemType == typeof(DataLabel))
            {
                DataLabel label = (DataLabel)base.CreateInstance(itemType);

                label.Name = _ChartSeries.DataLabels.GetUniqueName();

                return (label);
            }

            return (base.CreateInstance(itemType));
        }

        #endregion

        #region CopyButton_Click

        protected override void CopyButton_Click(object sender, EventArgs e)
        {
            DataLabel item = ChartItem as DataLabel;

            if (item != null)
            {
                if (AddButton != null)
                {
                    ChartControlDesigner ccd = GetDesigner(_ChartSeries.ChartControl);

                    ccd.InCopyItem = true;

                    try
                    {
                        AddButton.PerformClick();

                        DataLabelCollection dlc = _ChartSeries.DataLabels;
                        DataLabel clone = dlc[dlc.Count - 1];

                        string name = clone.Name;
                        item.CopyTo(clone);
                        clone.Name = name;
                    }
                    finally
                    {
                        ccd.InCopyItem = false;
                    }
                }
            }
        }

        #endregion

        #region CreateCollectionItemType

        protected override Type CreateCollectionItemType()
        {
            return typeof(DataLabel);
        }

        #endregion
    }
}