// Copyright 2010 ESRI
// 
// All rights reserved under the copyright laws of the United States
// and applicable international laws, treaties, and conventions.
// 
// You may freely redistribute and use this sample code, with or
// without modification, provided you include the original copyright
// notice and use restrictions.
// 
// See the use restrictions.
// 

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Runtime.InteropServices;

using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.ADF;
using ESRI.ArcGIS.SystemUI;

namespace MyDynamicDisplayApp
{
  public sealed partial class MainForm : Form
  {
    #region class private members
    private IMapControl3 m_mapControl = null;
    private string m_mapDocumentName = string.Empty;
    #endregion

    #region class constructor
    public MainForm()
    {
      InitializeComponent();
    }
    #endregion

    private void MainForm_Load(object sender, EventArgs e)
    {
      //get the MapControl
      m_mapControl = (IMapControl3)axMapControl1.Object;

      //disable the Save menu (since there is no document yet)
      menuSaveDoc.Enabled = false;

      axToolbarControl1.AddItem(new ToggleDynamicDisplayCmd());
      axToolbarControl1.AddItem(new LoadDynamicLayerCmd());
    }

    #region Main Menu event handlers
    private void menuNewDoc_Click(object sender, EventArgs e)
    {
      //execute New Document command
      ICommand command = new CreateNewDocument();
      command.OnCreate(m_mapControl.Object);
      command.OnClick();
    }

    private void menuOpenDoc_Click(object sender, EventArgs e)
    {
      //execute Open Document command
      ICommand command = new ControlsOpenDocCommandClass();
      command.OnCreate(m_mapControl.Object);
      command.OnClick();
    }

    private void menuSaveDoc_Click(object sender, EventArgs e)
    {
      //execute Save Document command
      if (m_mapControl.CheckMxFile(m_mapDocumentName))
      {
        //create a new instance of a MapDocument
        IMapDocument mapDoc = new MapDocumentClass();
        mapDoc.Open(m_mapDocumentName, string.Empty);

        //Make sure that the MapDocument is not readonly
        if (mapDoc.get_IsReadOnly(m_mapDocumentName))
        {
          MessageBox.Show("Map document is read only!");
          mapDoc.Close();
          return;
        }

        //Replace its contents with the current map
        mapDoc.ReplaceContents((IMxdContents)m_mapControl.Map);

        //save the MapDocument in order to persist it
        mapDoc.Save(mapDoc.UsesRelativePaths, false);

        //close the MapDocument
        mapDoc.Close();
      }
    }

    private void menuSaveAs_Click(object sender, EventArgs e)
    {
      //execute SaveAs Document command
      ICommand command = new ControlsSaveAsDocCommandClass();
      command.OnCreate(m_mapControl.Object);
      command.OnClick();
    }

    private void menuExitApp_Click(object sender, EventArgs e)
    {
      //exit the application
      Application.Exit();
    }
    #endregion

    //listen to MapReplaced event in order to update the status bar and the Save menu
    private void axMapControl1_OnMapReplaced(object sender, IMapControlEvents2_OnMapReplacedEvent e)
    {
      //get the current document name from the MapControl
      m_mapDocumentName = m_mapControl.DocumentFilename;

      //if there is no MapDocument, disable the Save menu and clear the status bar
      if (m_mapDocumentName == string.Empty)
      {
        menuSaveDoc.Enabled = false;
        statusBarXY.Text = string.Empty;
      }
      else
      {
          //enable the Save menu and write the doc name to the status bar
        menuSaveDoc.Enabled = true;
        statusBarXY.Text = Path.GetFileName(m_mapDocumentName);
      }
    }

    private void axMapControl1_OnMouseMove(object sender, IMapControlEvents2_OnMouseMoveEvent e)
    {
      statusBarXY.Text = string.Format("{0}, {1}  {2}", e.mapX.ToString("#######.##"), e.mapY.ToString("#######.##"), axMapControl1.MapUnits.ToString().Substring(4));
    }
  }
}