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

namespace Deckungsbeitrag
{
  public partial class FormHelp : Form
  {
    string[] Keys;
    string[] KeyBesch;
    int abstandSeite = 100;
    int abstand = 20;
    int abstandZwischen = 5;

    public FormHelp()
    {
      InitializeComponent();
    }

    /// <summary>
    /// Übergeben von string[] KeyWord und string[] Beschreibung 
    /// </summary>
    /// <param name="keys"></param>
    /// <param name="keytext"></param>
    public FormHelp(string[] keys, string[] keytext) : this()
    {
      this.Keys = keys;
      this.KeyBesch = keytext;
    }

    private void FormHelp_Load(object sender, EventArgs e)
    {
      Size longestkey = new Size(0, 0);
      Point location = new Point(0, 0);

      // KeyWords verarbeiten und als Label einblenden
      for (int i = 0; i < Keys.Length; i++)
      {
        Label lbl = new Label();
        lbl.Name = $"lblKey{i + 1}";
        lbl.Text = Keys[i];
        lbl.Tag = Keys[i];
        lbl.Font = new Font(lbl.Font.FontFamily, 12, FontStyle.Bold);
        lbl.Size = TextRenderer.MeasureText(lbl.Text, lbl.Font);
        if (i == 0) lbl.Location = new Point(abstandSeite, abstand);
        else lbl.Location = new Point(abstandSeite, abstand + (lbl.Height + abstandZwischen) * i);

        if(lbl.Width > longestkey.Width) longestkey.Width = lbl.Width;
        this.Controls.Add(lbl);
      }

      // KeyBeschreibung verarbeiten und als label einblenden.
      for (int i = 0; i < KeyBesch.Length; i++)
      {
        Label lbl = new Label();
        lbl.Name = $"lblBesch{i + 1}";
        lbl.Text = KeyBesch[i];
        lbl.Tag = KeyBesch[i];
        lbl.Font = new Font(lbl.Font.FontFamily, 12);
        lbl.Size = TextRenderer.MeasureText(lbl.Text, lbl.Font);
        if (i == 0) lbl.Location = new Point(abstandSeite + longestkey.Width + 10, abstand);
        else lbl.Location = new Point((abstandSeite + longestkey.Width + 10), abstand + (lbl.Height + abstandZwischen) * i);

        if(lbl.Right > location.X) location.X = lbl.Right;
        if(lbl.Bottom > location.Y) location.Y = lbl.Bottom;
        this.Controls.Add(lbl);
      }

      // Größe des Fensters bestimmen.
      this.Width = location.X + abstandSeite;
      this.Height = location.Y + buttonOK.Height + 50;
    }

    private void buttonOK_Click(object sender, EventArgs e)
    {
      this.Close();
    }
  }
}