/*=============================================================================
  
  Project:   SharpImage
  Module:    siPropertyGridFilenameHelper.cs
  Language:  C#
  Author:    Dan Mueller
  Date:      $Date: 2007-07-06 10:57:00 +1000 (Fri, 06 Jul 2007) $
  Revision:  $Revision: 2 $

  Copyright (c) Queensland University of Technology (QUT) 2007.
  All rights reserved.

  This software is distributed WITHOUT ANY WARRANTY; without even
  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  PURPOSE.  See the above copyright notices for more information.
  
=============================================================================*/

using System;
using System.IO;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Design;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Windows.Forms;

namespace SharpImage.Forms
{
    public class siOpenFilenameTypeConverter : TypeConverter
    {
        public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType)
        {
            if (destinationType == typeof(System.String) && value is String)
            {
                String sFileName = value as String;
                return Path.GetFileName(sFileName);
            }
            return base.ConvertTo(context, culture, value, destinationType);
        }
    }

    public class siOpenFilenameEditor : System.Drawing.Design.UITypeEditor
    {
        public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
        {
            if (context != null && context.Instance != null)
                return UITypeEditorEditStyle.Modal;
            else
                return base.GetEditStyle(context);
        }
        
        public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
        {
            if (context == null || provider == null || context.Instance == null)
                return base.EditValue(provider, value);

            // Setup the dialog
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.CheckFileExists = true;
            ofd.CheckPathExists = true;
            ofd.Multiselect = false;
            ofd.ShowHelp = false;
            ofd.Title = "Select " + context.PropertyDescriptor.DisplayName;
            ofd.FileName = value as String;

            // Set the filter
            foreach (Attribute attrib in context.PropertyDescriptor.Attributes)
            {
                if (attrib is siFilenameEditorFilterAttribute)
                {
                    ofd.Filter = (attrib as siFilenameEditorFilterAttribute).Filter;
                    ofd.FilterIndex = (attrib as siFilenameEditorFilterAttribute).FilterIndex;
                }            
            }
            
            // Show the dialog
            if (ofd.ShowDialog(provider as IWin32Window) == DialogResult.OK)
                value = ofd.FileName;

            // Clean up and return
            ofd.Dispose();
            return value;
        }  
    }

    [AttributeUsage(AttributeTargets.Property)]
    public class siFilenameEditorFilterAttribute : Attribute
    {
        private string m_Filter = string.Empty;
        private int m_FilterIndex = 0;

        public siFilenameEditorFilterAttribute(string filter) : base()
        {
            this.m_Filter = filter;
        }

        public siFilenameEditorFilterAttribute(string filter, int index) : base()
        {
            this.m_Filter = filter;
            this.m_FilterIndex = index;
        }

        public string Filter
        {
            get { return this.m_Filter; }
        }

        public int FilterIndex
        {
            get { return this.m_FilterIndex; }
        }
    }
}