public LauncherViewModel(ConfigHandler configHandler)
{
BrowseOverlayImageCommand = new RelayCommand((p) => {
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Filter = "";
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageEncoders();
string format = "{0}{1}{2} ({3})|{3}";
openFileDialog.Filter = string.Format(format, openFileDialog.Filter, string.Empty, "All Files", "*.*");
foreach (var c in codecs)
{
string codecName = c.CodecName.Substring(8).Replace("Codec", "Files").Trim();
openFileDialog.Filter = string.Format(format, openFileDialog.Filter, "|", codecName, c.FilenameExtension);
}
if (openFileDialog.ShowDialog() == true)
{
OverlayImagePath = openFileDialog.FileName;
}
});
ConfigureCommand = new RelayCommand((p) => {
new EditDisplayConfigurationViewModel(configHandler);
});
LaunchDisplayCommand = new RelayCommand(
(p) => !string.IsNullOrWhiteSpace(OverlayImagePath) &&
!string.IsNullOrWhiteSpace(ServerPort) &&
!string.IsNullOrWhiteSpace(ServerAddress),
(p) => {
if (!IsValidIP(ServerAddress))
{
DialogFactory.CreateErrorDialog(Constants.C_LaunchError, "The IP address is invalid.");
return;
}
if (!int.TryParse(ServerPort, out int port))
{
DialogFactory.CreateErrorDialog(Constants.C_LaunchError, "Port must only contain numbers.");
return;
}
if (!Uri.TryCreate(OverlayImagePath, UriKind.RelativeOrAbsolute, out Uri imageUri))
{
DialogFactory.CreateErrorDialog(Constants.C_LaunchError, "The image path is incorrect.");
return;
}
ImageBrush brush;
try {
brush = new ImageBrush(new BitmapImage(imageUri));
} catch (NotSupportedException) {
DialogFactory.CreateErrorDialog(Constants.C_LaunchError, "Image file type not supported.");
return;
}
new PreviewDisplayConfigurationViewModel(configHandler.GetActiveConfig(), ServerAddress, port, brush);
});
}
private void AttemptToSaveConfig()
{
var saveRc = _configHandler.SaveConfig();
if (saveRc.ReturnCode != ConfigHandlerReturnCodeType.Success)
{
DialogFactory.CreateErrorDialog(Constants.C_ConfigErrorTitle, saveRc.Reason);
}
}
public void AppStartup(object sender, StartupEventArgs e)
{
_configHandler = new ConfigHandler();
//The showing of error dialogs must be done after the main window shows since dialogs set the owner to the main window which wouldn't have been created yet
var rc = _configHandler.LoadConfig();
var vm = new LauncherViewModel(_configHandler);
_window = new CustomWindow(vm);
_window.Show();
if (rc.ReturnCode != ConfigHandlerReturnCodeType.Success)
{
_configHandler.CreateNewConfig();
if (rc.ReturnCode == ConfigHandlerReturnCodeType.InvalidConfiguration)
{
var result = DialogFactory.CreateYesNoDialog(
Constants.C_ConfigErrorTitle,
"Could not load configuration file due to it being invalid.\n\nUsing a new configuration for now. Would you like to overwrite the new configuration with the new configuration?"
);
if (result)
{
AttemptToSaveConfig();
}
}
else if (rc.ReturnCode == ConfigHandlerReturnCodeType.FileNotFound)
{
AttemptToSaveConfig();
}
else
{
DialogFactory.CreateErrorDialog(Constants.C_ConfigErrorTitle, rc.Reason);
}
}
}
public PreviewDisplayConfigurationViewModel(Config activeConfig, string address, int port, ImageBrush backgroundBrush) : base(activeConfig)
{
DisplayWindow.Background = backgroundBrush;
DisplayWindow.Cursor = Cursors.None;
DisplayWindow.InputBindings.Add(new KeyBinding(new RelayCommand((param) => DisplayLines = !DisplayLines), Key.M, ModifierKeys.Control));
ToggleButtonMapCommand = new RelayCommand(x => DisplayLines = !DisplayLines);
ButtonClickCommand = new RelayCommand(async p => {
int t = await Task <int> .Factory.StartNew(() => {
try {
using (TcpClient client = new TcpClient()) {
if (!client.ConnectAsync(address, port).Wait(2000))
{
return(2);
}
byte[] data = Encoding.ASCII.GetBytes(((ButtonViewModel)p).Message + "\r");
using (NetworkStream stream = client.GetStream()) {
stream.Write(data, 0, data.Length);
}
return(0);
}
} catch (AggregateException e) {
int exceptionCode = -1;
e.Handle(ex => {
if (exceptionCode != -1)
{
return(true);
}
if (ex is IOException)
{
exceptionCode = 1;
}
else if (ex is SocketException)
{
exceptionCode = 2;
}
else
{
return(false);
}
return(true);
});
return(exceptionCode);
}
});
if (!_isExceptionBeingAcknowledged && t == 1)
{
_isExceptionBeingAcknowledged = true;
DialogFactory.CreateErrorDialog(Constants.C_ConnectionError, "Connection lost, message not sent.", DisplayWindow);
_isExceptionBeingAcknowledged = false;
}
else if (!_isExceptionBeingAcknowledged && t == 2)
{
_isExceptionBeingAcknowledged = true;
DialogFactory.CreateErrorDialog(Constants.C_ConnectionError, "Unable to connect to host.", DisplayWindow);
_isExceptionBeingAcknowledged = false;
}
});
DisplayWindow.ShowDialog();
}