public ScanningPoint()
{
float secondsPerCol = ScanPeriod / (float)xRes;
this.timerPeriod = (long)(500000 * secondsPerCol);
this.ticksPerFrame = (long)(ScanPeriod * TimeSpan.TicksPerSecond);
this.p = new ProportionPoint(0f, 0.5f);
}
private void backgroundReceiver_Work(object sender, DoWorkEventArgs e)
{
string latest;
while (true)
{
latest = this.ReceiveString();
//Console.Write(latest);
if (latest.Contains(";"))
{
float[] coords = ExtractCoords(latest);
this.p = new ProportionPoint(coords);
if (this.Mode == ModuleMode.Active)
{
NewPosition(this, new NewPositionEventArgs(this.p));
}
if (this.pointerDown == false)
{
this.pointerDown = true;
if (this.Mode == ModuleMode.Active)
{
//PointerStateChange(this, new PointerStateChangeEventArgs(this.pointerDown));
}
}
}
else
{
// if there isn't a semi-colon, not coordinates
// most likely "finger___up" (could be some other, yet to be implemented, message)
if(latest=="finger___up")
{
this.pointerDown = false;
if (this.Mode == ModuleMode.Active)
{
//PointerStateChange(this,new PointerStateChangeEventArgs(this.pointerDown));
}
}
}
}
}
public CentrePoint()
{
this.p = new ProportionPoint(0.5f, 0.5f);
}
private void PointerModule_NewPosition(object sender, NewPositionEventArgs e)
{
this.p = e.Position;
int col = (int)Math.Round((double)(p.x * (float)xRes));
// Do we need a new image?
if ((col < this.lastCol)||(this.bmdb==null))
{
try
{
// Get a new image
Bitmap orig = this.AcquisitionModule.GetImage();
// Now resize it so that it's height is equal to yRes
Bitmap resized = this.ResizeBitmap(orig);
Bitmap greyscale = this.ToGreyscale(resized);
// Save this resized bitmap for posterity
//string tmpPath = Path.GetTempFileName();
//resized.Save(tmpPath);
//Console.WriteLine("frame saved to {0}", tmpPath);
//this.bm = resized;
this.bmdb = this.ImageToBytes(greyscale);
}
catch (NoDataYetException ndye)
{
Console.Write(ndye.Message);
}
}
if ((this.bmdb != null)&&(this.lastCol!=col))
{
// Now read a column
//for (int i = 0; i < yRes; i++)
//{
// byte[] pixel = new byte[2];
// pixel[0] = this.bmdb[0, col, i];
// pixel[1] = this.bmdb[1, col, i];
// int pixelVal = BitConverter.ToInt16(pixel, 0);
// float pixelValProp = (float)pixelVal / 256f;
// this.Outputs[i].Amplitude = pixelValProp;
//}
}
this.lastCol = col;
}
