====== Source Code XamarinFormsEditionSample DrawEditFeatures.zip ======

====App.cs====

<code csharp>   
 using Xamarin.Forms;  
  
 namespace DrawEditFeatures  
 {  
     public class App : Application  
     {  
         public App()  
         {  
             // The root page of your application  
             MainPage = new NavigationPage(new MainPage());  
         }  
  
         protected override void OnStart()  
         {  
             // Handle when your app starts  
         }  
  
         protected override void OnSleep()  
         {  
             // Handle when your app sleeps  
         }  
  
         protected override void OnResume()  
         {  
             // Handle when your app resumes  
         }  
     }  
 }  
  
 </code>

====MainPage.xaml.cs====

<code csharp>   
 using System;  
 using ThinkGeo.MapSuite.Core;  
 using ThinkGeo.MapSuite.FormsEdition;  
 using Xamarin.Forms;  
  
 namespace DrawEditFeatures  
 {  
     public partial class MainPage : ContentPage  
     {  
         private MapView mapView;  
         private DrawEditMode drawEditMode;  
         private string trackEditMode;  
         private Command<string> trackButtonCommand;  
  
         public MainPage()  
         {  
             InitializeComponent();  
  
             BindingContext = this;  
             mapView = new MapView();  
             mapView.MapUnit = GeographyUnit.Meter;  
             mapView.BackgroundColor = Color.FromRgb(244, 242, 238);  
             mapView.CurrentExtent = new RectangleShape(-13939426.6371, 6701997.4056, -7812401.86, 2626987.386962);  
             mainGrid.Children.Insert(0, mapView);  
  
             // Base overlay.  
             WorldMapKitOverlay worldOverlay = new WorldMapKitOverlay();  
             worldOverlay.Projection = WorldMapKitProjection.SphericalMercator;  
             mapView.Overlays.Add("WMK", worldOverlay);  
         }  
  
         public Command<string> TrackButtonCommand  
         {  
             get  
             {  
                 trackButtonCommand = (trackButtonCommand ?? new Command<string>(TrackButtonClick));  
                 return trackButtonCommand;  
             }  
         }  
  
         public DrawEditMode DrawEditMode  
         {  
             get { return drawEditMode; }  
             set  
             {  
                 if (drawEditMode != value)  
                 {  
                     drawEditMode = value;  
                     OnPropertyChanged();  
                 }  
             }  
         }  
  
         private void TrackButtonClick(string buttonType)  
         {  
             switch (buttonType)  
             {  
                 case "Pan":  
                     DrawEditMode = DrawEditMode.Pan;  
                     mapView.TrackOverlay.TrackMode = TrackMode.None;  
                     break;  
  
                 case "Draw":  
                     ChangeTrackMode();  
                     break;  
  
                 case "Edit":  
                     DrawEditMode = DrawEditMode.Edit;  
                     mapView.TrackOverlay.TrackMode = TrackMode.None;  
                     foreach (Feature feature in mapView.TrackOverlay.TrackShapeLayer.InternalFeatures)  
                     {  
                         mapView.EditOverlay.EditShapesLayer.InternalFeatures.Add(feature);  
                     }  
                     mapView.TrackOverlay.TrackShapeLayer.InternalFeatures.Clear();  
                     mapView.EditOverlay.CalculateAllControlPoints();  
                     mapView.EditOverlay.Refresh();  
                     mapView.TrackOverlay.Refresh();  
                     break;  
  
                 case "Clear":  
                     DrawEditMode = DrawEditMode.Clear;  
                     mapView.EditOverlay.ClearAllControlPoints();  
                     mapView.EditOverlay.EditShapesLayer.Open();  
                     mapView.EditOverlay.EditShapesLayer.Clear();  
                     mapView.TrackOverlay.TrackShapeLayer.Open();  
                     mapView.TrackOverlay.TrackShapeLayer.Clear();  
                     mapView.EditOverlay.Refresh();  
                     mapView.TrackOverlay.Refresh();  
                     break;  
  
                 default:  
                     mapView.TrackOverlay.TrackMode = TrackMode.None;  
                     break;  
             }  
         }  
  
         private async void ChangeTrackMode()  
         {  
             var action = await DisplayActionSheet("Select track mode", "Cancel", null, "Point", "Line", "Rectangle", "Circle", "Polygon");  
             if (action.Equals("Cancel", StringComparison.OrdinalIgnoreCase)) return;  
             mapView.TrackOverlay.TrackMode = (TrackMode)Enum.Parse(typeof(TrackMode), action);  
             DrawEditMode = (DrawEditMode)Enum.Parse(typeof(DrawEditMode), action);  
         }  
     }  
 }  
  
 </code>

====DrawEditMode.cs====

<code csharp>   
  
 namespace DrawEditFeatures  
 {  
     public enum DrawEditMode  
     {  
         Pan = 0,  
         Point = 1,  
         Line = 2,  
         Rectangle = 3,  
         Circle = 4,  
         Polygon = 5,  
         Draw = 6,  
         Edit = 7,  
         Clear = 8  
     }  
 }  
 </code>

====DrawEditModeToColorConverter.cs====

<code csharp>   
 using System;  
 using Xamarin.Forms;  
  
 namespace DrawEditFeatures  
 {  
     public class DrawEditModeToColorConverter : IValueConverter  
     {  
         public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)  
         {  
             string operationParameter = (string)parameter;  
             if (value is DrawEditMode)  
             {  
                 DrawEditMode operationMode = (DrawEditMode)value;  
  
                 switch (operationMode)  
                 {  
                     case DrawEditMode.Point:  
                     case DrawEditMode.Line:  
                     case DrawEditMode.Rectangle:  
                     case DrawEditMode.Circle:  
                     case DrawEditMode.Polygon:  
                         operationMode = DrawEditMode.Draw;  
                         break;  
                 }  
  
                 if (operationParameter.Equals(operationMode.ToString(), StringComparison.OrdinalIgnoreCase))  
                 {  
                     return Color.White;  
                 }  
                 else  
                 {  
                     return Color.Transparent;  
                 }  
             }  
  
             return null;  
         }  
  
         public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)  
         {  
             throw new NotImplementedException();  
         }  
     }  
 }  
  
 </code>

====DrawEditModeToNameConverter.cs====

<code csharp>   
 using System;  
 using Xamarin.Forms;  
  
 namespace DrawEditFeatures  
 {  
     public class DrawEditModeToNameConverter : IValueConverter  
     {  
         public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)  
         {  
             string result = string.Empty;  
  
             if (value is DrawEditMode)  
             {  
                 DrawEditMode operationMode = (DrawEditMode)value;  
  
                 switch (operationMode)  
                 {  
                     case DrawEditMode.Point:  
                     case DrawEditMode.Line:  
                     case DrawEditMode.Rectangle:  
                     case DrawEditMode.Circle:  
                     case DrawEditMode.Polygon:  
                         result = string.Format("Draw/Edit - Track - {0}", operationMode);  
                         break;  
                     default:  
                         result = string.Format("Draw/Edit - {0}", operationMode);  
                         break;  
                 }  
             }  
  
             return result;  
         }  
  
         public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)  
         {  
             throw new NotImplementedException();  
         }  
     }  
 }  
  
 </code>

====AssemblyInfo.cs====

<code csharp>   
 using System.Resources;  
 using System.Reflection;  
 using System.Runtime.CompilerServices;  
 using System.Runtime.InteropServices;  
  
 // General Information about an assembly is controlled through the following  
 // set of attributes. Change these attribute values to modify the information  
 // associated with an assembly.  
 [assembly: AssemblyTitle("DrawEditFeatures")]  
 [assembly: AssemblyDescription("")]  
 [assembly: AssemblyConfiguration("")]  
 [assembly: AssemblyCompany("")]  
 [assembly: AssemblyProduct("DrawEditFeatures")]  
 [assembly: AssemblyCopyright("Copyright ©  2015")]  
 [assembly: AssemblyTrademark("")]  
 [assembly: AssemblyCulture("")]  
 [assembly: NeutralResourcesLanguage("en")]  
  
 // Version information for an assembly consists of the following four values:  
 //  
 //      Major Version  
 //      Minor Version  
 //      Build Number  
 //      Revision  
 //  
 // You can specify all the values or you can default the Build and Revision Numbers  
 // by using the '*' as shown below:  
 // [assembly: AssemblyVersion("1.0.*")]  
 [assembly: AssemblyVersion("1.0.0.0")]  
 [assembly: AssemblyFileVersion("1.0.0.0")]  
  
 </code>