public static void save2Ngraph(Ngraph ngraph)
{
if (ngraph.Duration > 0 && ngraph.Graph.Length > 0)
{
ngraphs.Add(ngraph);
}
}
public static void readNgraphsFromFile(String path)
{
Ngraph n;
fs = new FileStream(path, FileMode.Open);
sr = new StreamReader(fs, Encoding.UTF8);
string fs_line = "";
int j = 0;
int k = 0;
while ((fs_line = sr.ReadLine()) != null)
{
j = 0;
k = 0;
for (int i = 0; i < fs_line.Length; i++)
{
if (fs_line.ToCharArray()[i] == ';' && j == 0)
{
j = i;
}
}
for (int i = j + 1; i < fs_line.Length; i++)
{
if (fs_line.ToCharArray()[i] == ';')
{
k = i;
}
}
if (fs_line.Length > 2)
{
try
{
n = new Ngraph(fs_line.Substring(0, j),
Int32.Parse(fs_line.Substring(j + 1, k - j - 1)),
Int32.Parse(fs_line.Substring(k + 1, fs_line.Length - k - 1)));
old_ngraphs.Add(n);
}catch (Exception e)
{
Debug.WriteLine(e.ToString());
}
}
}
fs.Close();
sr.Close();
}
/// <summary>
/// Calculates the distance A between this and Ngraph n
/// </summary>
/// <param name="n">New ngraph to compare with</param>
/// <returns>The distance A</returns>
public double calcDistanceA(Ngraph n)
{
return(0d);
}
private static IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
if (STATE == PASSIVE)
{
return(CallNextHookEx(_hookID, nCode, wParam, lParam));
}
long milliseconds = 0;
Keys key1;
key1 = (Keys)Marshal.ReadInt32(lParam);
keyString = key1.ToString();
//Debug.Write(keyString);
// account for german keyboard layout:
if (keyString.Equals("OemOpenBrackets"))
{
keyString = "ß";
}
else if (keyString.Equals("Oem10"))
{
keyString = "Ü";
}
else if (keyString.Equals("Oemtilde"))
{
keyString = "Ö";
}
else if (keyString.Equals("Oem7"))
{
keyString = "Ä";
}
else if (keyString.Equals("Oem1"))
{
keyString = "Ä";
}
//else if (keyString.Length > 3 && keyString.Substring(0, 3).Equals("Num")) keyString = keyString.Substring(6, 1); //Numpad
//else if (keyString.Length == 2 && keyString.Substring(0, 1).Equals("D")) keyString = keyString.Substring(1, 1); //Numbers
//Debug.WriteLine(" "+keyString);
if (nCode >= 0 && wParam == (IntPtr)WM_KEYDOWN)
{
//accuont
milliseconds = DateTimeOffset.Now.ToUnixTimeMilliseconds();
//Console.WriteLine("Diff: " + (milliseconds - time_last_key)/1000);
if ((milliseconds - time_last_key) / 1000 > 3 || //reset after 3 seconds of not typing
//key.ToString().Equals("Backspace") || //or after pressing Space/Enter
keyString.Equals("Space") ||
keyString.Equals("Return"))
//key.ToString().Equals("Esc"))
{
//Console.WriteLine("Reset variables");
// Console.WriteLine("STATE: " + STATE);
if (STATE == ENROLLMENT)
{
writeOut();
}
if (STATE == VALIDATION)
{
compare();
ngraphs.Clear();
}
init_ngraphs();
}
else if (keyString.Length == 1) //only take letters/numbers into account
{
//2-graphs
keys_2g[cnt_2g] = keyString;
//Debug.WriteLine("keys2g: " + keys_2g[cnt_2g]);
millis_2g[cnt_2g] = milliseconds;
cnt_2g++;
if (cnt_2g == 3) //three consecutive keys without keyup
{
long dur = millis_2g[2] - millis_2g[0];
digraph = new Ngraph(keys_2g[0] + keys_2g[1], (int)dur, 1);
cnt_2g = 2;
for (int i = 0; i < cnt_2g; i++)
{
keys_2g[i] = keys_2g[i + 1];
millis_2g[i] = millis_2g[i + 1];
}
//Debug.Write("2_down: " + digraph.Graph + " ");
//Debug.WriteLine(digraph.Duration);
save2Ngraph(digraph);
}
//3-graphs
keys_3g[cnt_3g] = keyString;
millis_3g[cnt_3g] = milliseconds;
cnt_3g++;
if (cnt_3g == 4) //four consecutive keys without keyup
{
long dur = millis_3g[3] - millis_3g[0];
trigraph = new Ngraph(keys_3g[0] + keys_3g[1] + keys_3g[2], (int)dur, 1);
cnt_3g = 3;
for (int i = 0; i < cnt_3g; i++)
{
keys_3g[i] = keys_3g[i + 1];
millis_3g[i] = millis_3g[i + 1];
}
// Debug.Write("3_down: " + trigraph.Graph + " ");
// Debug.WriteLine(trigraph.Duration);
save2Ngraph(trigraph);
}
//4-graphs
keys_4g[cnt_4g] = keyString;
millis_4g[cnt_4g] = milliseconds;
cnt_4g++;
if (cnt_4g == 5) //five consecutive keys without keyup
{
long dur = millis_4g[4] - millis_4g[0];
fourgraph = new Ngraph(keys_4g[0] + keys_4g[1] + keys_4g[2] + keys_4g[3], (int)dur, 1);
cnt_4g = 4;
for (int i = 0; i < cnt_4g; i++)
{
keys_4g[i] = keys_4g[i + 1];
millis_4g[i] = millis_4g[i + 1];
}
//Debug.Write("4_down: " + fourgraph.Graph + " ");
//Debug.WriteLine(fourgraph.Duration);
save2Ngraph(fourgraph);
}
//5-graphs
keys_5g[cnt_5g] = keyString;
millis_5g[cnt_5g] = milliseconds;
cnt_5g++;
if (cnt_5g == 6) //six consecutive keys without keyup
{
long dur = millis_5g[5] - millis_5g[0];
fivegraph = new Ngraph(keys_5g[0] + keys_5g[1] + keys_5g[2] + keys_5g[3] + keys_5g[4], (int)dur, 1);
cnt_5g = 5;
for (int i = 0; i < cnt_5g; i++)
{
keys_5g[i] = keys_5g[i + 1];
millis_5g[i] = millis_5g[i + 1];
}
//Debug.Write("5_down: " + fivegraph.Graph + " ");
//Debug.WriteLine(fivegraph.Duration);
save2Ngraph(fivegraph);
}
//Debug.Write(milliseconds + " ");
//Debug.WriteLine(key.ToString());
}
}
if (nCode >= 0 && wParam == (IntPtr)WM_KEYUP)
{
milliseconds = DateTimeOffset.Now.ToUnixTimeMilliseconds();
if (keyString.Length == 1) //only take letters/numbers into account
//key.ToString().StartsWith("NumPad")) //also check for number in numpad
{
//2-graphs
//Debug.WriteLine("cnt 2g: " + cnt_2g);
if (cnt_2g >= 2 && keyString.Equals(keys_2g[1]))
{
long dur = milliseconds - millis_2g[0];
digraph = new Ngraph(keys_2g[0] + keys_2g[1], (int)dur, 1);
cnt_2g = 1;
keys_2g[0] = keys_2g[1];
millis_2g[0] = millis_2g[1];
//Debug.Write("2_up: " + digraph.Graph + " ");
//Debug.WriteLine(digraph.Duration);
save2Ngraph(digraph);
}
//3-graphs
if (cnt_3g >= 3 && keyString.Equals(keys_3g[2]))
{
long dur = milliseconds - millis_3g[0];
trigraph = new Ngraph(keys_3g[0] + keys_3g[1] + keys_3g[2], (int)dur, 1);
cnt_3g = 2;
for (int i = 0; i < cnt_3g; i++)
{
keys_3g[i] = keys_3g[i + 1];
millis_3g[i] = millis_3g[i + 1];
}
//Debug.Write("3_up: " + trigraph.Graph + " ");
//Debug.WriteLine(trigraph.Duration);
save2Ngraph(trigraph);
}
//4-graphs
if (cnt_4g >= 4 && keyString.Equals(keys_4g[3]))
{
long dur = milliseconds - millis_4g[0];
fourgraph = new Ngraph(keys_4g[0] + keys_4g[1] + keys_4g[2] + keys_4g[3], (int)dur, 1);
cnt_4g = 3;
for (int i = 0; i < cnt_4g; i++)
{
keys_4g[i] = keys_4g[i + 1];
millis_4g[i] = millis_4g[i + 1];
}
//Debug.Write("4_up: " + fourgraph.Graph + " ");
//Debug.WriteLine(fourgraph.Duration);
save2Ngraph(fourgraph);
}
//5-graphs
if (cnt_5g >= 5 && keyString.Equals(keys_5g[4]))
{
long dur = milliseconds - millis_5g[0];
fivegraph = new Ngraph(keys_5g[0] + keys_5g[1] + keys_5g[2] + keys_5g[3] + keys_5g[4], (int)dur, 1);
cnt_5g = 4;
for (int i = 0; i < cnt_5g; i++)
{
keys_5g[i] = keys_5g[i + 1];
millis_5g[i] = millis_5g[i + 1];
}
// Debug.Write("5_up: " + fivegraph.Graph + " ");
//Debug.WriteLine(fivegraph.Duration);
save2Ngraph(fivegraph);
}
}
}
if (milliseconds > 0)
{
time_last_key = milliseconds;
}
return(CallNextHookEx(_hookID, nCode, wParam, lParam));
}
