// 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.Collections.Generic;
using System.Text;
using System.IO;
using ESRI.ArcGIS.ADF.BaseClasses;
using ESRI.ArcGIS.ADF.CATIDs;
using System.Windows.Forms;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.Analyst3D;
using ESRI.ArcGIS.GlobeCore;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Display;
using Microsoft.VisualBasic;

namespace GlobeGraphicsToolbar
{
    public class TextTool : ESRI.ArcGIS.Desktop.AddIns.Tool
    {
        private const int LeftButton = 1;
        private const esriSRGeoCSType GeographicCoordinateSystem = esriSRGeoCSType.esriSRGeoCS_WGS1984;
        private const float TextElementSize = 10;
        private const string GraphicsLayerName = "Globe Graphics";
        private object _missing = Type.Missing;

        public TextTool()
        {
        }

        protected override void OnUpdate()
        {

        }

        protected override void OnMouseDown(ESRI.ArcGIS.Desktop.AddIns.Tool.MouseEventArgs arg)
        {
            if (arg.Button == MouseButtons.Left)
            {
                GeographicCoordinates geographicCoordinates = new GeographicCoordinates(ArcGlobe.Globe, arg.X, arg.Y);

                SpatialReferenceFactory spatialReferenceFactory = new SpatialReferenceFactory((int)GeographicCoordinateSystem);

                PointGeometry pointGeometry = new PointGeometry(geographicCoordinates.Longitude, geographicCoordinates.Latitude, geographicCoordinates.AltitudeInKilometers, spatialReferenceFactory.SpatialReference);

                TextForm textForm = new TextForm();

                DialogResult dialogResult = textForm.ShowDialog();

                if (textForm.InputText.Length > 0)
                {
                    TextElement textElement = new TextElement(pointGeometry.Geometry, textForm.InputText, TextElementSize);

                    TableOfContents tableOfContents = new TableOfContents(ArcGlobe.Globe);

                    if (!tableOfContents.LayerExists(GraphicsLayerName))
                    {
                        tableOfContents.ConstructLayer(GraphicsLayerName);
                    }

                    Layer layer = new Layer(tableOfContents[GraphicsLayerName]);

                    layer.AddElement(textElement.Element, textElement.ElementProperties);

                    ArcGlobe.Globe.GlobeDisplay.RefreshViewers();
                }
            }
        }
    }

}