Hi Russell,

You are right, it adds a special case for project file format, so
technically it is a version bump. Alternatively one could simply create
"empty.kicad_wks" and store there the contents of emptyPageLayout[]. It
seems safer, but on the other hand I would like to be able to specify
that design uses an empty worksheet layout.

Wayne, what do you think? Is it acceptable that we add a reserved
keyword "empty" to indicate an empty worksheet layout for a project? If
so, we need to implement it both for pcbnew and eeschema.

Regards,
Orson

On 02/11/2018 12:24 AM, Russell Oliver wrote:
> Hi Orson and Wayne
> 
> I have updated the patch from your changes Orson, so that the change is
> saved using the project file settings, by setting the schematic layout file
> path as "empty" eg
> PageLayoutDescrFile=empty
> 
> It is technically a file format change, but it also provides the option to
> those that do not want a border to specify it for a schematic.
> 
> Kind Regards
> Russell
> 
> 
> On Thu, Feb 8, 2018 at 10:25 PM Maciej Sumiński <maciej.sumin...@cern.ch>
> wrote:
> 
>> There is still one problem to be solved here: worksheet layout is not
>> saved in schematic file, so the default worksheet is restored when an
>> imported project is saved and reloaded.
>>
>> I have nothing against the patch, it gives a nicer first impression.
>>
>> Cheers,
>> Orson
>>
>> On 02/07/2018 04:44 PM, Wayne Stambaugh wrote:
>>> Thanks for testing this.  I know I'm being paranoid but we've been bit
>>> by this before.  Maybe someday our unit testing will actually get
>>> implemented.
>>>
>>> Wayne
>>>
>>> On 2/7/2018 8:21 AM, Russell Oliver wrote:
>>>> I just tested printing then and it worked fine. plus one person's
>>>> unhandled edge case is another's unit test.
>>>>
>>>>
>>>>
>>>> On Thu, Feb 8, 2018 at 12:05 AM Wayne Stambaugh <stambau...@gmail.com
>>>> <mailto:stambau...@gmail.com>> wrote:
>>>>
>>>>     Be careful with zero length line segments.  They have been known to
>>>>     cause issues in the past.  We recently fixed a print bug where a
>> zero
>>>>     diameter circle was causing pages not to print.
>>>>
>>>>     On 2/7/2018 7:45 AM, Russell Oliver wrote:
>>>>     > Hi Orson,
>>>>     >
>>>>     > I'm completely fine with any simplifications and style changes.
>>>>     >
>>>>     > With regards to the zero length line, it appears on line 110 of
>> your
>>>>     > patch file.
>>>>     > 110: +    "(line (name segm1:Line) (start 0 0) (end 0 0))\n"
>>>>     >
>>>>     > JP mentions in a comment to the bug report that there is a legacy
>>>>     > compatibility requirement to have at least one item in the page
>>>>     layout,
>>>>     > otherwise the default layout it used. This was for old schematics
>> that
>>>>     > do not have a page layout specified.
>>>>     >
>>>>     > Kind Regards
>>>>     > Russell
>>>>     >
>>>>     >
>>>>     > On Wed, Feb 7, 2018 at 12:13 AM Maciej Sumiński
>>>>     <maciej.sumin...@cern.ch <mailto:maciej.sumin...@cern.ch>
>>>>     > <mailto:maciej.sumin...@cern.ch <mailto:maciej.sumin...@cern.ch
>>>>>
>>>>     wrote:
>>>>     >
>>>>     >     Hi Russell,
>>>>     >
>>>>     >     Thank you very much for the patch. It works as expected and I
>>>>     would like
>>>>     >     to merge it, but there are two things.
>>>>     >
>>>>     >     I have simplified the patch a bit (moved the empty layout to
>>>>     an existing
>>>>     >     file, minor code formatting fixes), so please confirm you are
>>>>     ok with
>>>>     >     committing it under your name.
>>>>     >
>>>>     >     Another question is about "there is a 0 length line to fool
>>>>     something
>>>>     >     somewhere." comment for const char emptyLayout[]. Could you
>> say
>>>>     >     something more about it? I could not spot a 0 length line in
>>>>     the layout
>>>>     >     description, so perhaps we can remove it to avoid confusion.
>>>>     >
>>>>     >     Regards,
>>>>     >     Orson
>>>>     >
>>>>     >     On 02/03/2018 01:27 AM, Russell Oliver wrote:
>>>>     >     > Attached is a patch that adds an empty layout using the same
>>>>     >     method as the
>>>>     >     > SetDefaultLayout function, which is then called by the Eagle
>>>>     schematic
>>>>     >     > plugin to leave only the imported frame visible.
>>>>     >     >
>>>>     >     > https://bugs.launchpad.net/kicad/+bug/1729722
>>>>     >     >
>>>>     >     > Kind Regards
>>>>     >     > Russell
>>>>     >     >
>>>>     >     >
>>>>     >     >
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