> Highly interesting indeed. Now, what gimp-perl does (when you pass in a > drawable instead of both image and drawable) is this: > > if (sv_derived_from (sv, PKG_DRAWABLE)) > arg->data.d_image = gimp_drawable_image_id (unbless(sv, PKG_DRAWABLE, croak_str)); > > i.e. it calls gimp_drawable_image_id (or gimp_layer_get_image_id > etc..) to get the image, which in turn calls the the pdb function > gimp_drawable_image without any caches. This means that, temporarily, gimp > returns "-1" as the image id and later the correct one. I did some more experimenting today and found that the following code works: # Apply an "old photo" look to it. The sleep() is a delay to allow the # script to finish before we try to run any other plug-ins on it. script_fu_old_photo($drawable, 0, 1, 1, 1, 0); sleep(2); $drawable = gimp_image_get_active_layer($img); # Apply the Drop Shadow filter to it. script_fu_drop_shadow($drawable, "8", "8", "15", [0,0,0], "100.0", 1); What this tells me is that the problem has to do with calling multiple plug-ins from another plug-in. Since the plug-ins run as separate processes, the calling plug-in continues running after each call to another plug-in. The first called plug-in can change the make up of the image drawables *after* the second plug-in is called. That, understandably, is a bad thing and unexpected results are likely. So plug-ins which call other plug-ins - especially plug-ins that add or delete layers from an image - need to pause for those plug-ins to complete and then make sure they have the current active drawable for the image being worked on before calling the next plug-in. I don't see how you can "fix" this problem with the Gimp and maintain the ability for interactive users to work on multiple images while plug-ins are running. The only possible option is to add some sort of "serialize plug-ins" feature that can be turned on and off from within a plug-in. Doesn't sound easy. -- Michael J. Hammel The Graphics Muse mjhammel@xxxxxxxxxxxxxxxxx http://www.graphics-muse.com ------------------------------------------------------------------------------ Memory is a Net - Oliver Wendell Holmes, Sr.
