/*
* Initializes form values upon load and loads previous settings
* into UI, if available. If not, settings are initialized to
* defaults.
*/
private void FrmMain_Load(object sender, EventArgs e)
{
// get UI button references
uiButtons = new Button[7];
uiButtons[0] = btnJoystick;
uiButtons[1] = btnButton1;
uiButtons[2] = btnButton2;
uiButtons[3] = btnButton3;
uiButtons[4] = btnButton4;
uiButtons[5] = btnButton5;
uiButtons[6] = btnButton6;
// scroll wheel event handlers so the scroll wheel cannot control the trackbars in joystick view
trkJoystick.MouseWheel += new MouseEventHandler(trackBar_MouseWheel);
trkCursor.MouseWheel += new MouseEventHandler(trackBar_MouseWheel);
// load settings
settings = DeviceSettings.Instance;
buttonSettings = new ButtonSetting[6];
// if previous settings were loaded, update the UI to reflect them
if (settings.LoadedPreviousSession)
{
buttonSettings[0] = settings.GetButtonSetting(1);
buttonSettings[1] = settings.GetButtonSetting(2);
buttonSettings[2] = settings.GetButtonSetting(3);
buttonSettings[3] = settings.GetButtonSetting(4);
buttonSettings[4] = settings.GetButtonSetting(5);
buttonSettings[5] = settings.GetButtonSetting(6);
currentJoystickSetting = settings.JoystickSetting;
currentJoystickSetting.AssignedButton = uiButtons[0];
for (int i = 0; i < 6; i++)
{
buttonSettings[i].AssignedButton = uiButtons[i + 1];
}
mnuStartWithWindows.Checked = settings.RunAtStartup;
trayNotifShown = true;
}
else // set default values if not
{
currentJoystickSetting = new JoystickSetting(uiButtons[0]);
settings.JoystickSetting = currentJoystickSetting;
for (int i = 0; i < 6; i++)
{
buttonSettings[i] = new ButtonSetting(uiButtons[i + 1]);
settings.SetButtonSetting(i + 1, buttonSettings[i]);
}
trayNotifShown = false;
// since we don't know if the application is to run at startup
// from device settings since a previous session was not loaded,
// check if the task exists and update device settings accordingly
using (TaskService scheduler = new TaskService())
{
if (scheduler.GetTask("Custom Mouse Controller") == null)
{
settings.RunAtStartup = false;
mnuStartWithWindows.Checked = false;
}
else
{
settings.RunAtStartup = true;
mnuStartWithWindows.Checked = true;
}
}
}
//show warning if programs assigned last session have not been found
if (settings.NotAllProgramsLoaded)
{
MessageBox.Show(this, "One or more programs that were assigned to the buttons have been uninstalled or moved since " +
"last run. Their assignments have been removed.", "Custom Mouse Controller - Missing Programs", MessageBoxButtons.OK, MessageBoxIcon.Information);
if (Visible)
{
Focus();
}
}
// start out on joystick view since it is the first button
btnJoystick.PerformClick();
isJoystickView = true;
}
/*
* Starts the communcation process between the computer and
* Arduino. This method runs a loop until Dispose() is called
* and processes all communication to and from the Arduino.
*/
public void Start()
{
if (connected) // do not start a new loop if Start() is called again
{
return;
}
while (!disposed)
{
if (!connected) // while not connected, search for Arduino on each serial port and attempt to connect if it is found
{
ManagementObjectSearcher portSearcher = new ManagementObjectSearcher("Select * From Win32_SerialPort");
ManagementObjectCollection ports = portSearcher.Get();
foreach (ManagementObject port in ports)
{
string portName = port.GetPropertyValue("Description").ToString();
if (portName.Contains("Arduino Leonardo"))
{
if (device == null)
{
device = new SerialPort(port.GetPropertyValue("DeviceID").ToString());
device.BaudRate = 9600;
device.DtrEnable = true;
device.RtsEnable = true;
device.Handshake = Handshake.None;
device.Parity = Parity.None;
device.StopBits = StopBits.Two;
device.ReadTimeout = 10000; // setting to 10000 here for handshake
device.DataBits = 8;
try
{
device.Open();
}
catch // device was probably just plugged in and is still open by Windows, so try again on next iteration of loop
{
try
{
device.Dispose();
}
catch // no need to handle serial port exceptions here
{
;
}
device = null;
continue;
}
// perform a handshake to ensure we have the right Arduino and that it is working properly
connected = PerformHandshake();
}
// initialize cursorSpeedTick if connected, shorten read timeout and break the loop
if (connected)
{
cursorSpeedTick = 12 - settings.JoystickSetting.SpeedMultiplier;
device.ReadTimeout = 1000;
device.WriteTimeout = 1000;
break;
}
else
{
try
{
device.Dispose();
}
catch // no need to handle serial port exceptions here
{
;
}
device = null;
}
}
}
}
else // connected to Arduino, so read and process data that is being sent
{
string data = String.Empty;
try
{
data = device.ReadLine();
}
catch // if there is any error reading from the Arduino, check if it is still connected
{
ManagementObjectSearcher portSearcher = new ManagementObjectSearcher("Select * From Win32_SerialPort");
ManagementObjectCollection ports = portSearcher.Get();
bool stillConnected = false;
// check to see if port is still in list of ports
foreach (ManagementObject port in ports)
{
if (port.GetPropertyValue("DeviceID").ToString() == device.PortName)
{
stillConnected = true;
}
}
// disconnect if device is no longer connected
if (!stillConnected)
{
connected = false;
try
{
device.Dispose();
}
catch // no need to handle serial port exceptions here
{
;
}
device = null;
}
continue;
}
if (data.Contains("X") && data.Contains("Y")) // joystick signal from Arduino
{
cursorSpeedTick--; // decrement with each iteration of loop
if (cursorSpeedTick == 0) // if cursorSpeedTick reaches 0, move cursor accordingly and reset cursorSpeedTick
{
MoveMouse(data.Substring(0, data.IndexOf("\r")));
cursorSpeedTick = 12 - settings.JoystickSetting.SpeedMultiplier;
}
}
else // button signal from Arduino
{
switch (data.Substring(0, data.IndexOf("\r")))
{
case "1":
PerformButtonAction(settings.GetButtonSetting(1));
break;
case "2":
PerformButtonAction(settings.GetButtonSetting(2));
break;
case "3":
PerformButtonAction(settings.GetButtonSetting(3));
break;
case "4":
PerformButtonAction(settings.GetButtonSetting(4));
break;
case "5":
PerformButtonAction(settings.GetButtonSetting(5));
break;
case "6":
PerformButtonAction(settings.GetButtonSetting(6));
break;
}
}
}
}
}
