prs/prs.desktop/Forms/MapForm.xaml.cs

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Drawing;
using System.Linq;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media.Imaging;
using Google.Maps;
using Google.Maps.StaticMaps;
using InABox.Core;
using InABox.Wpf;
using Syncfusion.Linq;
using Location = Google.Maps.Location;

namespace PRSDesktop.Forms
{
	
	/// <summary>
	/// Interaction logic for MapForm.xaml
	/// </summary>
	public partial class MapForm : ThemableWindow
    {
		String GOOGLE_KEY = "AIzaSyChZhoJCzeaOm8q2QMm2KJOgc26aCeopjQ";
		StaticMapRequest request = new StaticMapRequest();
		StaticMapService service = new StaticMapService();

		private double _zoom = 18.0;
		
		public BitmapImage ToImage(byte[] array)
		{
			using (var ms = new System.IO.MemoryStream(array))
			{
				var image = new BitmapImage();
				image.BeginInit();
				image.CacheOption = BitmapCacheOption.OnLoad; // here
				image.StreamSource = ms;
				image.EndInit();
				return image;
			}
		}

		public MapForm(double latitude, double longitude, DateTime timestamp, string? geometry = null)
		{
			InitializeComponent();

			GoogleSigned.AssignAllServices(new GoogleSigned(GOOGLE_KEY));

			request = new StaticMapRequest();
			String sLoc = String.Format("{0},{1}", latitude, longitude);
			Location location = new Location(sLoc);
			request.Center = location;
			request.Markers.Add(location);
			request.Scale = 2;
			request.Size = new MapSize(640,640); // Convert.ToInt32(ActualWidth)-20, Convert.ToInt32(ActualHeight)-20);
			
			request.Format = GMapsImageFormats.JPG;
			if (!string.IsNullOrWhiteSpace(geometry))
			{
				var perims = Serialization.Deserialize<Dictionary<string, List<PointF>>>(geometry) ?? new Dictionary<string, List<PointF>>();
				var paths = new List<Path>();
				foreach (var perim in perims)
				{
					var path = new Path()
					{
						Points = new Collection<Location>(perim.Value.Select(x => new Location($"{x.Y},{x.X}")).ToList()),
						Color = MapColor.FromArgb(255, 255, 0, 0),
						FillColor = MapColor.FromArgb(64, 255, 0, 0),
						Weight = 1

					};
					paths.Add(path);
				}
				request.Paths = paths;
			}

			service = new StaticMapService();

			GetImage();

			TimeStamp.Content = String.Format("Last Updated {0:dd MMM yyy hh:mm:ss tt}", timestamp);

		}

		private void GetImage()
		{
			request.Zoom = (int)Math.Round(_zoom, 0);
			var imageSource = new BitmapImage();
			imageSource.BeginInit();
			imageSource.StreamSource = service.GetStream(request);
			imageSource.CacheOption = BitmapCacheOption.OnLoad;
			imageSource.EndInit();
			staticmap.Source = imageSource;
		}

		private void staticmap_MouseUp(object sender, MouseButtonEventArgs e)
		{
			Close();
		}

		private void ZoomOut_OnClick(object sender, RoutedEventArgs e)
		{
			_zoom -= 1.0;
			GetImage();
		}

		private void ZoomIn_OnClick(object sender, RoutedEventArgs e)
		{
			_zoom += 1.0;
			GetImage();
		}
    }
}