OpenBve.formMain.ShowRoute C# (CSharp) Method

		private void ShowRoute(bool UserSelectedEncoding) {
			if (routeWorkerThread == null)
			{
				return;
			}
			if (Result.RouteFile != null && !routeWorkerThread.IsBusy)
			{
				
				this.Cursor = Cursors.WaitCursor;
				TryLoadImage(pictureboxRouteImage, "loading.png");
				groupboxRouteDetails.Visible = true;
				textboxRouteDescription.Text = Interface.GetInterfaceString("start_route_processing");

				// determine encoding
				if (!UserSelectedEncoding) {
					comboboxRouteEncoding.Tag = new object();
					comboboxRouteEncoding.SelectedIndex = 0;
					comboboxRouteEncoding.Items[0] = "(UTF-8)";
					comboboxRouteEncoding.Tag = null;
					Result.RouteEncoding = System.Text.Encoding.UTF8;
					switch (TextEncoding.GetEncodingFromFile(Result.RouteFile)) {
						case TextEncoding.Encoding.Utf7:
							panelRouteEncoding.Enabled = false;
							comboboxRouteEncoding.SelectedIndex = 0;
							comboboxRouteEncoding.Items[0] = "(UTF-7)";
							Result.RouteEncoding = System.Text.Encoding.UTF7;
							break;
						case TextEncoding.Encoding.Utf8:
							panelRouteEncoding.Enabled = false;
							comboboxRouteEncoding.SelectedIndex = 0;
							comboboxRouteEncoding.Items[0] = "(UTF-8)";
							Result.RouteEncoding = System.Text.Encoding.UTF8;
							break;
						case TextEncoding.Encoding.Utf16Le:
							panelRouteEncoding.Enabled = false;
							comboboxRouteEncoding.SelectedIndex = 0;
							comboboxRouteEncoding.Items[0] = "(UTF-16 little endian)";
							Result.RouteEncoding = System.Text.Encoding.Unicode;
							break;
						case TextEncoding.Encoding.Utf16Be:
							panelRouteEncoding.Enabled = false;
							comboboxRouteEncoding.SelectedIndex = 0;
							comboboxRouteEncoding.Items[0] = "(UTF-16 big endian)";
							Result.RouteEncoding = System.Text.Encoding.BigEndianUnicode;
							break;
						case TextEncoding.Encoding.Utf32Le:
							panelRouteEncoding.Enabled = false;
							comboboxRouteEncoding.SelectedIndex = 0;
							comboboxRouteEncoding.Items[0] = "(UTF-32 little endian)";
							Result.RouteEncoding = System.Text.Encoding.UTF32;
							break;
						case TextEncoding.Encoding.Utf32Be:
							panelRouteEncoding.Enabled = false;
							comboboxRouteEncoding.SelectedIndex = 0;
							comboboxRouteEncoding.Items[0] = "(UTF-32 big endian)";
							Result.RouteEncoding = System.Text.Encoding.GetEncoding(12001);
							break;
						case TextEncoding.Encoding.Shift_JIS:
							panelRouteEncoding.Enabled = false;
							comboboxRouteEncoding.SelectedIndex = 0;
							comboboxRouteEncoding.Items[0] = "(SHIFT_JIS)";
							Result.RouteEncoding = System.Text.Encoding.GetEncoding(932);
							break;
					}
					panelRouteEncoding.Enabled = true;
					comboboxRouteEncoding.Tag = new object();
					
					int i;
					for (i = 0; i < Interface.CurrentOptions.RouteEncodings.Length; i++) {
						if (Interface.CurrentOptions.RouteEncodings[i].Value == Result.RouteFile) {
							int j;
							for (j = 1; j < EncodingCodepages.Length; j++) {
								if (EncodingCodepages[j] == Interface.CurrentOptions.RouteEncodings[i].Codepage) {
									comboboxRouteEncoding.SelectedIndex = j;
									Result.RouteEncoding = System.Text.Encoding.GetEncoding(EncodingCodepages[j]);
									break;
								}
							}
							if (j == EncodingCodepages.Length) {
								comboboxRouteEncoding.SelectedIndex = 0;
								Result.RouteEncoding = System.Text.Encoding.UTF8;
							}
							break;
						}
					}
					comboboxRouteEncoding.Tag = null;
				}
				routeWorkerThread.RunWorkerAsync();
			}
		}