#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HeuristicLab is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using System;
using System.ComponentModel;
using System.Globalization;
using System.Windows.Forms;
using HeuristicLab.MainForm;
using HeuristicLab.MainForm.WindowsForms;

namespace HeuristicLab.GoalSeeking.Views {
  [View("GoalSeekingTarget View", "")]
  [Content(typeof(GoalParameter), true)]
  public partial class GoalSeekingTargetView : AsynchronousContentView {
    public new GoalParameter Content {
      get { return (GoalParameter)base.Content; }
      set { base.Content = value; }
    }

    public GoalSeekingTargetView() {
      InitializeComponent();
    }

    protected override void OnContentChanged() {
      base.OnContentChanged();
      if (Content != null) {
        groupBox.Text = Content.Name;
        goalTextBox.Text = Content.Goal.ToString(CultureInfo.CurrentCulture);
        weightTextBox.Text = Content.Weight.ToString(CultureInfo.CurrentCulture);
        varianceTextBox.Text = Content.Variance.ToString(CultureInfo.CurrentCulture);
        stepTextBox.Text = Content.Step.ToString(CultureInfo.CurrentCulture);
        activeCheckBox.Checked = Content.Active;
        Content.Changed += Content_Changed;
      }
    }

    private void Content_Changed(object sender, EventArgs args) {
      groupBox.Text = Content.Name;
      goalTextBox.Text = Content.Goal.ToString(CultureInfo.CurrentCulture);
      weightTextBox.Text = Content.Weight.ToString(CultureInfo.CurrentCulture);
      varianceTextBox.Text = Content.Variance.ToString(CultureInfo.CurrentCulture);
      stepTextBox.Text = Content.Step.ToString(CultureInfo.CurrentCulture);
      activeCheckBox.Checked = Content.Active;
    }

    #region event handlers
    private void TextBoxValidating(object sender, CancelEventArgs e) {
      double v;
      string errorMsg = "Could not parse the entered value. Please input a real number.";
      var tb = (TextBox)sender;
      if (!double.TryParse(tb.Text, out v)) {
        e.Cancel = true;
        tb.Select(0, tb.Text.Length);

        // Set the ErrorProvider error with the text to display. 
        this.errorProvider.SetError(tb, errorMsg);
        errorProvider.BlinkStyle = ErrorBlinkStyle.NeverBlink;
        errorProvider.SetIconPadding(tb, -20);
      }
    }

    private void TextBoxValidated(object sender, EventArgs e) {
      var tb = (TextBox)sender;
      errorProvider.SetError(tb, string.Empty);
    }

    private void activeCheckBox_CheckedChanged(object sender, System.EventArgs e) {
      Content.Active = activeCheckBox.Checked;
      goalTextBox.Enabled = weightTextBox.Enabled = stepTextBox.Enabled = varianceTextBox.Enabled = Content.Active;
    }

    private void goalTextBox_TextChanged(object sender, EventArgs e) {
      double goal;
      if (double.TryParse(goalTextBox.Text, out goal))
        Content.Goal = goal;
    }

    private void weightTextBox_TextChanged(object sender, EventArgs e) {
      double weight;
      if (double.TryParse(weightTextBox.Text, out weight))
        Content.Weight = weight;
    }

    private void varianceTextBox_TextChanged(object sender, EventArgs e) {
      double variance;
      if (double.TryParse(varianceTextBox.Text, out variance))
        Content.Variance = variance;
    }

    private void stepTextBox_TextChanged(object sender, System.EventArgs e) {
      double step;
      if (double.TryParse(stepTextBox.Text, out step))
        Content.Step = step;
    }
    #endregion
  }
}