grafx - Extensible Java Graphics Package Code

Adding line clipper which does clipping of interpolated line colors.

Re-adding the drawLine() with color interpolation. We're going to do this.

Improving the performance of line drawing algorithm.

Finished LineRotate.

Starting new test class, LineRotate.

Changing order of some boolean && or || to make it more symmetric, readable.

Finished with the line drawing subroutines.

Adding one more of the line drawing subroutines. Seems to work.

Fixing a wrong increment for 'dd'.

In line drawing routines, changing cases of " += -value " to " -= value ".
It's much easier to follow and to copy this way.