Hi,

Does it make sense to consider a request to include updating-output-stream-mixin in the superclasses of postscript-stream (in Backends/Postscript/class.lisp)? We have an application which uses updating-output for incremental redisplay, but we would also like to be able to use the same drawing functions (and the same drawing logic, more importantly) without having to implement it twice, once for updating-output streams and once for postscript streams.

The below makes sense in our use case. (The alternative of creating a graphical output record and then replaying it on the postscript stream is unattractive because we have a use case with no graphical output at all)

Cheers,

Christophe

Index: Backends/PostScript/class.lisp =================================================================== RCS file: /project/mcclim/cvsroot/mcclim/Backends/PostScript/class.lisp,v retrieving revision 1.6 diff -u -r1.6 class.lisp --- Backends/PostScript/class.lisp 4 Jul 2002 06:57:43 -0000 1.6 +++ Backends/PostScript/class.lisp 28 Jul 2005 11:31:01 -0000 @@ -60,6 +60,7 @@ permanent-medium-sheet-output-mixin sheet-mute-repainting-mixin mirrored-sheet-mixin ; ? + climi::updating-output-stream-mixin ; ?? standard-extended-output-stream standard-output-recording-stream) ((file-stream :initarg :file-stream :reader postscript-stream-file-stream)