// 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 ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Analyst3D;
using ESRI.ArcGIS.Display;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.GlobeCore;
using ESRI.ArcGIS.ADF.COMSupport;
using System.Drawing;
using System;


namespace GlobeGraphicsToolbar
{
    public class TextElement
    {
        private IElement _element;
        private IGlobeGraphicsElementProperties _elementProperties;

        public TextElement(IGeometry geometry, string text, float size)
        {
            _element = GetElement(geometry, text, size);
            _elementProperties = GetElementProperties();
        }

        private IElement GetElement(IGeometry geometry, string text, float size)
        {
            IElement element;

            ITextElement textElement = new TextElementClass();
            element = textElement as IElement;

            ITextSymbol textSymbol = new TextSymbolClass();
            textSymbol.Color = ColorSelection.GetColor();
            textSymbol.Size = Convert.ToDouble(size);
            textSymbol.Font = GetIFontDisp(size);
            textSymbol.HorizontalAlignment = GetHorizontalAlignment();
            textSymbol.VerticalAlignment = GetVerticalAlignment();

            element.Geometry = geometry;

            textElement.Symbol = textSymbol;
            textElement.Text = text;

            return element;
        }

        private stdole.IFontDisp GetIFontDisp(float size)
        {
            const string FontFamilyName = "Arial";
            const FontStyle FontStyle = FontStyle.Bold;

            Font font = new Font(FontFamilyName, size, FontStyle);

            return OLE.GetIFontDispFromFont(font) as stdole.IFontDisp;
        }

        private esriTextHorizontalAlignment GetHorizontalAlignment()
        {
            const esriTextHorizontalAlignment HorizontalAlignment = esriTextHorizontalAlignment.esriTHACenter;

            return HorizontalAlignment;
        }

        private esriTextVerticalAlignment GetVerticalAlignment()
        {
            const esriTextVerticalAlignment VerticalAlignment = esriTextVerticalAlignment.esriTVABaseline;

            return VerticalAlignment;
        }

        private IGlobeGraphicsElementProperties GetElementProperties()
        {
            IGlobeGraphicsElementProperties elementProperties = new GlobeGraphicsElementPropertiesClass();
            elementProperties.FixedScreenSize = true;
            elementProperties.DrapeElement = true;

            return elementProperties;
        }

        public IElement Element
        {
            get
            {
                return _element;
            }
        }

        public IGlobeGraphicsElementProperties ElementProperties
        {
            get
            {
                return _elementProperties;
            }
        }
    }
}