// Copyright 2012 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.Runtime.InteropServices;
using ESRI.ArcGIS.ADF.BaseClasses;
using ESRI.ArcGIS.ADF.CATIDs;
using ESRI.ArcGIS.Controls;
using System.Windows.Forms;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Display;
using ESRI.ArcGIS.Geometry;

namespace Commands
{
    /// <summary>
    /// Summary description for AddDateTool.
    /// </summary>
    [Guid("bdc34bd5-3040-4141-b16b-ea8c1d7b4d46")]
    [ClassInterface(ClassInterfaceType.None)]
    [ProgId("Commands.AddDateTool")]
    public sealed class AddDateTool : BaseTool
    {
        #region COM Registration Function(s)
        [ComRegisterFunction()]
        [ComVisible(false)]
        static void RegisterFunction(Type registerType)
        {
            // Required for ArcGIS Component Category Registrar support
            ArcGISCategoryRegistration(registerType);

            //
            // TODO: Add any COM registration code here
            //
        }

        [ComUnregisterFunction()]
        [ComVisible(false)]
        static void UnregisterFunction(Type registerType)
        {
            // Required for ArcGIS Component Category Registrar support
            ArcGISCategoryUnregistration(registerType);

            //
            // TODO: Add any COM unregistration code here
            //
        }

        #region ArcGIS Component Category Registrar generated code
        /// <summary>
        /// Required method for ArcGIS Component Category registration -
        /// Do not modify the contents of this method with the code editor.
        /// </summary>
        private static void ArcGISCategoryRegistration(Type registerType)
        {
            string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID);
            MxCommands.Register(regKey);
            ControlsCommands.Register(regKey);
        }
        /// <summary>
        /// Required method for ArcGIS Component Category unregistration -
        /// Do not modify the contents of this method with the code editor.
        /// </summary>
        private static void ArcGISCategoryUnregistration(Type registerType)
        {
            string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID);
            MxCommands.Unregister(regKey);
            ControlsCommands.Unregister(regKey);
        }

        #endregion
        #endregion

        private IHookHelper m_hookHelper = null;

        public AddDateTool()
        {
            base.m_category = "CustomMapViewer";  
            base.m_caption = "Add Date";
            base.m_message = "Adds a date element to the active view";
            base.m_toolTip = "Add Date";
            base.m_name = "CustomMapViewer_AddDateTool";            try
            {
                string bitmapResourceName = GetType().Name + ".bmp";
                base.m_bitmap = new Bitmap(GetType(), bitmapResourceName);
                base.m_cursor = new Cursor(GetType(), GetType().Name + ".cur");
            }
            catch (Exception ex)
            {
                System.Diagnostics.Trace.WriteLine(ex.Message, "Invalid Bitmap");
            }
        }

        #region Overriden Class Methods

        /// <summary>
        /// Occurs when this tool is created
        /// </summary>
        /// <param name="hook">Instance of the application</param>
        public override void OnCreate(object hook)
        {
            try
            {
                m_hookHelper = new HookHelperClass();
                m_hookHelper.Hook = hook;
                if (m_hookHelper.ActiveView == null)
                {
                    m_hookHelper = null;
                }
            }
            catch
            {
                m_hookHelper = null;
            }

            if (m_hookHelper == null)
                base.m_enabled = false;
            else
                base.m_enabled = true;
        }

        /// <summary>
        /// Occurs when this tool is clicked
        /// </summary>
        public override void OnClick()
        {
            // TODO: Add AddDateTool.OnClick implementation
        }

        public override void OnMouseDown(int Button, int Shift, int X, int Y)
        {
            //Get the active view
            IActiveView activeView = m_hookHelper.ActiveView;

            //Create a new text element
            ITextElement textElement = new TextElementClass();
            //Create a text symbol
            ITextSymbol textSymbol = new TextSymbolClass();
            textSymbol.Size = 25;

            //Set the text element properties
            textElement.Symbol = textSymbol;
            textElement.Text = DateTime.Now.ToShortDateString();

            //QI for IElement
            IElement element = (IElement) textElement;
            //Create a point
            IPoint point = new PointClass();
            point = activeView.ScreenDisplay.DisplayTransformation.ToMapPoint(X,Y);
            //Set the elements geometry
            element.Geometry = point;

            //Add the element to the graphics container
            activeView.GraphicsContainer.AddElement(element, 0);
            //Refresh the graphics
            activeView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); 

        }

        public override void OnMouseMove(int Button, int Shift, int X, int Y)
        {
            // TODO:  Add AddDateTool.OnMouseMove implementation
        }

        public override void OnMouseUp(int Button, int Shift, int X, int Y)
        {
            // TODO:  Add AddDateTool.OnMouseUp implementation
        }
        #endregion
    }
}