#region Using Directives

using ryCommon;
using ScintillaNET;
using System;
using System.Windows.Forms;
using WeifenLuo.WinFormsUI.Docking;
using static System.Windows.Forms.VisualStyles.VisualStyleElement;




#endregion Using Directives

namespace ScintillaNET_FindReplaceDialog
{
	public class GoTo
	{
		private Scintilla _scintilla=null;
		private GoToDialog _window;

		#region Methods

		public void Line(int number)
		{
            if (_scintilla == null) { return; }
            _scintilla.Lines[number].Goto();
		}

		public void Position(int pos)
		{
            if (_scintilla == null) { return; }
            _scintilla.GotoPosition(pos);
		}

		public void ShowGoToDialog()
		{
			if (_scintilla == null) { return; }
			//GoToDialog gd = new GoToDialog();
			GoToDialog gd = _window;

			gd.CurrentLineNumber = _scintilla.CurrentLine;
			gd.MaximumLineNumber = _scintilla.Lines.Count;
			gd.Scintilla = _scintilla;
			if (!_window.Visible)
			{
				var form = _scintilla.FindForm();
				if (form != null)
				{
					if (form is DockContent dc)
					{
						var parent = dc.DockPanel.FindForm();
						_window.StartPosition = FormStartPosition.Manual;
                        _window.Location = new System.Drawing.Point(parent.Left+(parent.Width - _window.Width) / 2, parent.Top+(parent.Height - _window.Height) / 2);
                        _window.Show(parent);
                    }
					else
					{
						_window.Show(form);
					}
				}
				else
				{
					_window.StartPosition = FormStartPosition.CenterScreen;
                    _window.Show();
                }
			}

			//_window.ShowDialog(_scintilla.FindForm());
			//_window.Show(_scintilla.FindForm());

			//if (gd.ShowDialog() == DialogResult.OK)
			//Line(gd.GotoLineNumber);

			//gd.ShowDialog();
			//gd.Show();

			_scintilla.Focus();
		}

		#endregion Methods

		#region Constructors

		protected virtual GoToDialog CreateWindowInstance()
		{
			return new GoToDialog();
		}

		public GoTo(Scintilla scintilla)
		{
			_scintilla = scintilla;
			_window = CreateWindowInstance();
			_window.Scintilla = scintilla;
		}
        public GoTo()
        {
            _scintilla = null;
            _window = CreateWindowInstance();
            _window.Scintilla = null;
        }
        public Scintilla Scintilla
        {
            get { return _scintilla; }
            set { 
				_scintilla = value;
				_window.Scintilla = value;
				if (value != null)
				{
					GoToDialog gd = _window;
					gd.CurrentLineNumber = _scintilla.CurrentLine;
					gd.MaximumLineNumber = _scintilla.Lines.Count;
					gd.Scintilla = _scintilla;
					gd.UpdateUI();
				}
            }
        }
        #endregion Constructors
    }
}