using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace HeuristicLab.DataImporter.Command.View {
  public partial class ThresholdCommandView : HeuristicLab.DataImporter.Data.CommandBase.CommandViewBase {
    private ThresholdCommandView() {
      InitializeComponent();
      this.txtThreshold.Text = (0.5).ToString();
    }

    public ThresholdCommandView(DeleteColumnsWithTooFewValuesCommand command)
      : this() {
      this.Command = command;
      this.UpdateCommand();
    }

    public new DeleteColumnsWithTooFewValuesCommand Command {
      get { return (DeleteColumnsWithTooFewValuesCommand)base.Command; }
      set { base.Command = value; this.UpdateCommand(); }
    }

    public double Threshold {
      get { return Command.Threshold; }
    }

    private void textBox_Validating(object sender, CancelEventArgs e) {
      TextBox textBox = (TextBox)sender;
      double value;
      if (!double.TryParse(textBox.Text, out value))
        e.Cancel = true;
      if (value < 0 || value > 1)
        e.Cancel = true;
      if (e.Cancel)
        MessageBox.Show("A numeric value between 0 and 1 must be entered!");
      else
        this.UpdateCommand();
    }

    private void UpdateCommand() {
      if (this.Command != null) {
        double value;
        if (double.TryParse(txtThreshold.Text, out value))
          this.Command.Threshold = value;
      }
    }
  }
}