IS it available throught the PDB? Most GIMP - Python functions are done via PDB, except pixel-region manipulation stuff. If it is not in the PDB, it is not availabl in GIMP 2.8 - the current GIMP Python structure has to special cases a lot of things to work aside from the PDB, and doing so is not minor stuff done inside a release cycle. Making the 3-4 above calls are straightforward - I see no reason to violate the principle of no new features inside a release to add this. In GIMP 2.10, the export feature will also have to deal with precision management, and besides this export function, a class of PDB calls dealing with precision needs to be added as well. On 18 June 2014 14:21, Ed . <ej_zg@xxxxxxxxxxx> wrote: > Just to clarify, JS - you say "gimp_export_image is not available to > plug-ins as of gimp 2.8 series" - I take it you mean to Python plug-ins? > Because it works fine in Gimp-Perl plug-ins. > > I'd claim that the lack of gimp_export_image in pygimp is a bug, not a > feature to be added, so it should be possible to add in 2.8. Vladimir, it > ought to be as simple as adding to pygimp gimpexport, in the same way as > there is gimpui. See > http://developer.gimp.org/api/2.0/libgimp/libgimp-gimpexport.html > > Ed J > Gimp-Perl guy > > -----Original Message----- From: Vladimir Rutsky > Sent: Wednesday, June 18, 2014 1:27 PM > To: gwidion@xxxxxxxxx > Cc: gimp-developer > Subject: Re: How to call gimp_export_image() from > Pythonplugin > > > On Wed, Jun 18, 2014 at 3:19 PM, Joao S. O. Bueno <gwidion@xxxxxxxxx> wrote: >> >> On 18 June 2014 07:43, Vladimir Rutsky <rutsky.vladimir@xxxxxxxxx> wrote: >>> >>> On Wed, Jun 18, 2014 at 7:32 AM, Joao S. O. Bueno <gwidion@xxxxxxxxx> >>> wrote: >>>> >>>> From Python, in GIMP 2.8, you have to make calls to whatever is >>>> available via the PDB, but >>>> for some calls that have been shortened as methods of Image, Layer and >>>> other objects (but internally, >>>> most things happen through the PDB anyway). >>>> >>>> >>>> So, you have to call either "pdb.gimp_file_save" and specify the file >>>> format via the file-name extension, >>>> or call "pdb.file_bmp_save". For both cases you have to passin a >>>> drawable to be saved, meaning that if you >>>> want to save an existingimage, you hvae to preceed these calls with >>>> the equivalent of these two lines: >>>> >>>> saving_image = pdb.gimp_image_duplicate(img) >>>> saving_drawable = pdb.gimp_image_merge_visible_layers(saving_image) >>>> >>>> then you have a drawable to save, with all the visible image contents, >>>> but without messing >>>> with the image the user sees. After saving, call >>>> "pdb.gimp_image_delete(saving_image)" - to recover >>>> the resources used by the temporary image, >>>> >>>> js >>>> -><- >>> >>> >>> Thank for your reply, but this doesn't solves my problem. >>> >>> merge_visible_layers() doesn't behave as gimp_export_image(): it only >>> merges image layers to single layer. >>> I need not only to merge them, but also to convert to proper image >>> format suitable for me (e.g. convert to RGB from GRAY or RGBA) and >>> probably some other convertions. >> >> >> so, just do the needed conversions through further PDB calls. >> as you can see, gimp_export_image is not available to plug-ins as of >> gimp 2.8 series. >> (yes, it should be, and yes you can open a bug report requesting that >> so that we don't forget about it, >> but this is an API change, so it will just be there for GIMP 2.10 anyway). > > > Ok, thank you for clarification. I filed bug: > https://bugzilla.gnome.org/show_bug.cgi?id=731843 > > Why it can be released sooner? I'm not familiar with GIMP development > process, but I think exporting additional function doesn't break > backward compatibility of API. > If I'll submit patches for this issue, when I can expect to see it in > some official release of GIMP (in case patches will be accepted)? > > > -- > Vladimir Rutsky > > > >> >> >> js >> -><- >> >>> >>> And gimp_export_image() designed specifically for my task. >>> >>> According to it's sources >>> (https://git.gnome.org/browse/gimp/tree/libgimp/gimpexport.c) there >>> are quite a lot of steps and not so trivial logic that should be done >>> to obtain result image, and I don't want to reimplement this >>> functionality, I want to call gimp_export_image(). >>> >>>> >>>> >>>> >>>> >>>> On 17 June 2014 19:43, Vladimir Rutsky <rutsky.vladimir@xxxxxxxxx> >>>> wrote: >>>>> >>>>> Hello! >>>>> >>>>> I'm trying to write export plugin for custom image format in Python. >>>>> >>>>> Looking at plugins implemented in C, e.g. gimp/plug-ins/file-bmp/bmp.c, >>>>> and >>>>> docs >>>>> (http://developer.gimp.org/api/2.0/libgimp/libgimp-gimpexport.html) >>>>> I see, that best and recommended way to convert user image to single >>>>> layer >>>>> image with proper capabilities is by using gimp_export_image() >>>>> function. >>>>> >>>>> How gimp_export_image() can be called from Python? >>>>> >>>>> I can't find it exported Python modules and looks like it's not >>>>> accessible >>>>> via PDB either. >>>>> >>>>> If it's not available, can you advice proper alternative? Should I >>>>> report >>>>> missing gimp_export_image() function in bug tracker? >>>>> >>>>> >>>>> Thanks in advance, >>>>> >>>>> Vladimir Rutsky >>>>> >>>>> _______________________________________________ >>>>> gimp-developer-list mailing list >>>>> List address: gimp-developer-list@xxxxxxxxx >>>>> List membership: >>>>> https://mail.gnome.org/mailman/listinfo/gimp-developer-list >>>>> List archives: https://mail.gnome.org/archives/gimp-developer-list >>> >>> >>> >>> -- >>> Vladimir Rutsky > > _______________________________________________ > gimp-developer-list mailing list > List address: gimp-developer-list@xxxxxxxxx > List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list > List archives: https://mail.gnome.org/archives/gimp-developer-list _______________________________________________ gimp-developer-list mailing list List address: gimp-developer-list@xxxxxxxxx List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list List archives: https://mail.gnome.org/archives/gimp-developer-list
