public void DragBegin(int oldX, int oldY, DragAble component)
{
OldX = oldX;
OldY = oldY;
preX = currentX;
preY = currentY;
componentOnDrag = component;
}
public void DragEnd()
{
componentOnDrag.DragReleased(preX, preY);
OldX = 0;
OldY = 0;
preX = 0;
preY = 0;
componentOnDrag = null;
}