/// <summary>
/// Deserializes the <see cref="GazepointSetting"/> from the given xml file.
/// </summary>
/// <param name="filePath">Full file path to the xml settings file.</param>
/// <returns>A <see cref="GazepointSetting"/> object.</returns>
private GazepointSetting DeserializeSettings(string filePath)
{
GazepointSetting settings = new GazepointSetting();
// Create an instance of the XmlSerializer class;
// specify the type of object to be deserialized
XmlSerializer serializer = new XmlSerializer(typeof(GazepointSetting));
// If the XML document has been altered with unknown
// nodes or attributes, handle them with the
// UnknownNode and UnknownAttribute events.
serializer.UnknownNode += new XmlNodeEventHandler(this.SerializerUnknownNode);
serializer.UnknownAttribute += new XmlAttributeEventHandler(this.SerializerUnknownAttribute);
try
{
// A FileStream is needed to read the XML document.
FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
// Use the Deserialize method to restore the object's state with
// data from the XML document.
settings = (GazepointSetting)serializer.Deserialize(fs);
fs.Close();
}
catch (Exception ex)
{
InformationDialog.Show(
"Error occured",
"Deserialization ofGazepointSettings failed with the following message: " + Environment.NewLine + ex.Message,
false,
MessageBoxIcon.Error);
}
return(settings);
}
/// <summary>
/// Sets up calibration procedure and the tracking client
/// and wires the events. Reads settings from file.
/// </summary>
protected override void Initialize()
{
// Load Gazepoint tracker settings.
if (File.Exists(this.SettingsFile))
{
this.memSettings = this.DeserializeSettings(this.SettingsFile);
}
else
{
this.memSettings = new GazepointSetting();
this.SerializeSettings(this.memSettings, this.SettingsFile);
}
// We just need one connection for now. Maybe for subsequent development, we will be able to connect to many trackers
this.memNetworkManager = new ClientNetworkManager(this.memSettings.ServerAddress, this.memSettings.ServerPort, out this.memConnectionsIds);
this.memNetworkManager.MessageReceived += this.ProcessReceivedMessage;
this.memIsCalibrating = false;
this.memIsRecording = false;
//this.memXmlDocument = new XmlDocument();
//this.memTimeOfRecordingStart = new Stopwatch();
// Check the screen size, in ProcessReceivedMessage we receive the answer
// and set the correct size
this.memNetworkManager.Connect();
this.memNetworkManager.SendMessage("<GET ID=\"SCREEN_SIZE\" />\r\n");
// Get the timer tick frequency default value
QueryPerformanceFrequency(out this.tickFrequency);
// Get the timer tick frequency for high resolution timing from the Gazepoint API
this.memNetworkManager.SendMessage("<GET ID=\"TIME_TICK_FREQUENCY\" />\r\n");
this.memNetworkManager.Disconnect();
base.Initialize();
}
/// <summary>
/// Serializes the <see cref="GazepointSetting"/> into the given file in a xml structure.
/// </summary>
/// <param name="settings">The <see cref="GazepointSetting"/> object to serialize.</param>
/// <param name="filePath">Full file path to the xml settings file.</param>
private void SerializeSettings(GazepointSetting settings, string filePath)
{
// Create an instance of the XmlSerializer class;
// specify the type of object to serialize
XmlSerializer serializer = new XmlSerializer(typeof(GazepointSetting));
// Serialize the GazepointSetting, and close the TextWriter.
try
{
TextWriter writer = new StreamWriter(filePath, false);
serializer.Serialize(writer, settings);
writer.Close();
}
catch (Exception ex)
{
InformationDialog.Show(
"Error occured",
"Serialization of GazepointSettings failed with the following message: " + Environment.NewLine + ex.Message,
false,
MessageBoxIcon.Error);
}
}
/// <summary>
/// Raises GazepointSettingDialog to change the settings
/// for this interface.
/// </summary>
public override void ChangeSettings()
{
var dlg = new GazepointSettingsDialog {
GazepointSetting = this.memSettings
};
string prevAdd = this.memSettings.ServerAddress;
int prevPort = this.memSettings.ServerPort;
if (dlg.ShowDialog() == DialogResult.OK)
{
// If settings has changed, and we where connected, we need to disconnect
if (!prevAdd.Equals(this.memSettings.ServerAddress) ||
!prevPort.Equals(this.memSettings.ServerPort))
{
this.CleanUp();
this.memNetworkManager.ChangePort(this.memConnectionsIds[0], dlg.GazepointSetting.ServerPort);
this.memNetworkManager.ChangeAddress(this.memConnectionsIds[0], dlg.GazepointSetting.ServerAddress);
}
this.memSettings = dlg.GazepointSetting;
this.SerializeSettings(this.Settings, this.SettingsFile);
}
}
/// <summary>
/// Serializes the <see cref="GazepointSetting"/> into the given file in a xml structure.
/// </summary>
/// <param name="settings">The <see cref="GazepointSetting"/> object to serialize.</param>
/// <param name="filePath">Full file path to the xml settings file.</param>
private void SerializeSettings(GazepointSetting settings, string filePath)
{
// Create an instance of the XmlSerializer class;
// specify the type of object to serialize
XmlSerializer serializer = new XmlSerializer(typeof(GazepointSetting));
// Serialize the GazepointSetting, and close the TextWriter.
try
{
TextWriter writer = new StreamWriter(filePath, false);
serializer.Serialize(writer, settings);
writer.Close();
}
catch (Exception ex)
{
InformationDialog.Show(
"Error occured",
"Serialization of GazepointSettings failed with the following message: " + Environment.NewLine + ex.Message,
false,
MessageBoxIcon.Error);
}
}
/// <summary>
/// Deserializes the <see cref="GazepointSetting"/> from the given xml file.
/// </summary>
/// <param name="filePath">Full file path to the xml settings file.</param>
/// <returns>A <see cref="GazepointSetting"/> object.</returns>
private GazepointSetting DeserializeSettings(string filePath)
{
GazepointSetting settings = new GazepointSetting();
// Create an instance of the XmlSerializer class;
// specify the type of object to be deserialized
XmlSerializer serializer = new XmlSerializer(typeof(GazepointSetting));
// If the XML document has been altered with unknown
// nodes or attributes, handle them with the
// UnknownNode and UnknownAttribute events.
serializer.UnknownNode += new XmlNodeEventHandler(this.SerializerUnknownNode);
serializer.UnknownAttribute += new XmlAttributeEventHandler(this.SerializerUnknownAttribute);
try
{
// A FileStream is needed to read the XML document.
FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
// Use the Deserialize method to restore the object's state with
// data from the XML document.
settings = (GazepointSetting)serializer.Deserialize(fs);
fs.Close();
}
catch (Exception ex)
{
InformationDialog.Show(
"Error occured",
"Deserialization ofGazepointSettings failed with the following message: " + Environment.NewLine + ex.Message,
false,
MessageBoxIcon.Error);
}
return settings;
}
/// <summary>
/// Sets up calibration procedure and the tracking client
/// and wires the events. Reads settings from file.
/// </summary>
protected override void Initialize()
{
// Load Gazepoint tracker settings.
if (File.Exists(this.SettingsFile))
{
this.memSettings = this.DeserializeSettings(this.SettingsFile);
}
else
{
this.memSettings = new GazepointSetting();
this.SerializeSettings(this.memSettings, this.SettingsFile);
}
// We just need one connection for now. Maybe for subsequent development, we will be able to connect to many trackers
this.memNetworkManager = new ClientNetworkManager(this.memSettings.ServerAddress, this.memSettings.ServerPort, out this.memConnectionsIds);
this.memNetworkManager.MessageReceived += this.ProcessReceivedMessage;
this.memIsCalibrating = false;
this.memIsRecording = false;
//this.memXmlDocument = new XmlDocument();
//this.memTimeOfRecordingStart = new Stopwatch();
// Check the screen size, in ProcessReceivedMessage we receive the answer
// and set the correct size
this.memNetworkManager.Connect();
this.memNetworkManager.SendMessage("<GET ID=\"SCREEN_SIZE\" />\r\n");
// Get the timer tick frequency default value
QueryPerformanceFrequency(out this.tickFrequency);
// Get the timer tick frequency for high resolution timing from the Gazepoint API
this.memNetworkManager.SendMessage("<GET ID=\"TIME_TICK_FREQUENCY\" />\r\n");
this.memNetworkManager.Disconnect();
base.Initialize();
}
/// <summary>
/// Raises GazepointSettingDialog to change the settings
/// for this interface.
/// </summary>
public override void ChangeSettings()
{
var dlg = new GazepointSettingsDialog { GazepointSetting = this.memSettings };
string prevAdd = this.memSettings.ServerAddress;
int prevPort = this.memSettings.ServerPort;
if (dlg.ShowDialog() == DialogResult.OK)
{
// If settings has changed, and we where connected, we need to disconnect
if (!prevAdd.Equals(this.memSettings.ServerAddress) ||
!prevPort.Equals(this.memSettings.ServerPort))
{
this.CleanUp();
this.memNetworkManager.ChangePort(this.memConnectionsIds[0], dlg.GazepointSetting.ServerPort);
this.memNetworkManager.ChangeAddress(this.memConnectionsIds[0], dlg.GazepointSetting.ServerAddress);
}
this.memSettings = dlg.GazepointSetting;
this.SerializeSettings(this.Settings, this.SettingsFile);
}
}