Stuart, What if you would embed the changed symbols and their pins in the schematic. This method was discussed some months ago in view of the symbol hell of various symbol/devices/packages discussion and /or howto archive schematics in an ever changing symbols library. Just my EUR 0.01 Kind regards, Bert Timmerman. > -----Original Message----- > From: owner-geda-dev@seul.org@CORUS On Behalf Of sdb@cloud9.net > (Stuart Brorson) > Sent: donderdag 5 augustus 2004 2:16 > To: geda-dev@geda.seul.org > Subject: gEDA: Saving out pin attributes from gattrib > > Hi Ales and gEDA gurus -- > > Another question about objects and the libgeda data structures. > > I have gotten gattrib to read, display, and edit pin attribs > now. This feature will be useful to people who use PCB, and want to > make sure that their pinseq attribs are set correctly for > compatability with their footprints. > > Unfortunately, there is a problem: when gattrib tries to save changed > pin attribs out, it is unable to do it. > > The problem is architectural. Pin attribs like pinseq and pinlabel > are attached to the sym file, not to the sch file. This means that > when I call s_page_save_all, no pin changes get saved out because they > don't live in the sch file. > > There are two ways to fix this: > > 1. I can alter gattrib so that it also writes out changes to the sym > files. This strikes me as dangerous, because you might screw up your > entire symbol library by just changing pinseq attribs willy-nilly. > Therefore, I am against it. > > 2. We can implement some kind of "shadow attribs" for pins. This > means that basic pin attribs exist at sym level for the components, but > you can overwrite them at sch level, and the overwritten attribs get > written out in the netlist. Refdes already works like this, > why not make pinseq and pinlabel work the same way? > > To make shadow attribs work, however, we need to make pins editable > in > the schematic. Right now, they are only editable in the symbol > editor. This is a gschem change. I could look into doing it, but > you are the gschem owner, and I would want to ask for your > permission > and guidance. > > Finally, there is a work-around, which might become a permanent fix if > users think it is acceptable. Users might only want to *view* their > pin attribs using gattrib, but fix them directly in their symbols > using gschem's symbol editor. This might be acceptable because almost > all of the time you want to make sure that your pins have the correct > pinseq attrib for PCB; you don't really care to change them. > > If this is the case, I can just make the "pin" panel in gattrib > non-editable. I am interested in hearing from other gEDA hackers > what they think about this solution. Please let me know! > > Stuart
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