Node:Clearing Paths, Next:, Previous:Copying Paths, Up:Path Reference


void clear (void) Virtual function
Does the same thing the destructor ~Path() does: Calls delete() on the pointers to Points on points, clears points and connectors, deletes draw_color and fill_color, if they point to Colors that were allocated on the free store, and sets them to 0.

clear() is a pure virtual function in class Shape, so Path must be have a clear() function. It is needed, because it is sometimes called through a pointer to Shape, so that ~Path() cannot be accessed. At least, so far I haven't found a way to call a destructor through the virtual function facility.