private int AddPixelsXY(float X, float Y, bool bLastPoint)
{
float xNew, yNew, x1, y1;
int nSeg = SEGMENT3;
if (mCurrStroke < 0)
{
return(0);
}
if (strokeLen < 1)
{
_lastPoint.X = _previousLocation.X = X;
_lastPoint.Y = _previousLocation.Y = Y;
WritePadAPI.recoAddPixel(mCurrStroke, X, Y);
AddCurrentPoint(X, Y);
strokeLen = 1;
return(1);
}
float dx = Math.Abs(X - _lastPoint.X);
float dy = Math.Abs(Y - _lastPoint.Y);
if ((dx + dy) < SEGMENT_DIST_1)
{
_lastPoint.X = _previousLocation.X = X;
_lastPoint.Y = _previousLocation.Y = Y;
WritePadAPI.recoAddPixel(mCurrStroke, X, Y);
AddCurrentPoint(X, Y);
strokeLen++;
return(1);
}
if ((dx + dy) < SEGMENT_DIST_2)
{
nSeg = SEGMENT2;
}
else if ((dx + dy) < SEGMENT_DIST_3)
{
nSeg = SEGMENT3;
}
else
{
nSeg = SEGMENT4;
}
int nPoints = 0;
for (int i = 1; i < nSeg; i++)
{
x1 = _previousLocation.X + ((X - _previousLocation.X) * i) / nSeg; //the point "to look at"
y1 = _previousLocation.Y + ((Y - _previousLocation.Y) * i) / nSeg; //the point "to look at"
xNew = _lastPoint.X + (x1 - _lastPoint.X) / nSeg;
yNew = _lastPoint.Y + (y1 - _lastPoint.Y) / nSeg;
if (xNew != _lastPoint.X || yNew != _lastPoint.Y)
{
_lastPoint.X = xNew;
_lastPoint.Y = yNew;
WritePadAPI.recoAddPixel(mCurrStroke, xNew, yNew);
AddCurrentPoint(xNew, yNew);
strokeLen++;
nPoints++;
}
}
if (bLastPoint)
{
// add last point
if (X != _lastPoint.X || Y != _lastPoint.Y)
{
_lastPoint.X = X;
_lastPoint.Y = Y;
WritePadAPI.recoAddPixel(mCurrStroke, X, Y);
AddCurrentPoint(X, Y);
strokeLen++;
nPoints++;
}
}
_previousLocation.X = X;
_previousLocation.Y = Y;
return(nPoints);
}