private int[] CreateLookupX(int srcWidth, int dstWidth, ScaleFactor scaleFactor)
{
var lookup = new int[dstWidth + 1];
for (var x = 0; x < lookup.Length; ++x)
{
var pt = new Point(x, 0);
var clientPt = scaleFactor.ScalePoint(pt);
// Sometimes the scale factor is slightly different on one axis than
// on another, simply due to accuracy. So we have to clamp this value to
// be within bounds.
lookup[x] = Utility.Clamp(clientPt.X, 0, srcWidth - 1);
}
return(lookup);
}
private int[] CreateLookupY(int srcHeight, int dstHeight, ScaleFactor scaleFactor)
{
var lookup = new int[dstHeight + 1];
for (var y = 0; y < lookup.Length; ++y)
{
var pt = new Point(0, y);
var clientPt = scaleFactor.ScalePoint(pt);
// Sometimes the scale factor is slightly different on one axis than
// on another, simply due to accuracy. So we have to clamp this value to
// be within bounds.
lookup[y] = Utility.Clamp(clientPt.Y, 0, srcHeight - 1);
}
return(lookup);
}
public Point SurfaceToClient(Point surfacePt)
{
return(ScaleFactor.ScalePoint(surfacePt));
}
