Seth

Thank you so much for the prompt response and encouragement. 

For those who are unaware, when a board is being debugged you typically look at 
the schematic and need to find the relevant component. If the PCB is numbered 
geographically this is much easier to do than if the board simply follows the 
numbering of the schematic. The flow of the design allows you to locate 
components on the schematic but unless those components are numbered 
geographically (i.e. right to left, top to bottom, etc) it can take forever to 
find them on the PCB. This is why this function is common on PCB design tools.

I think I understand what you mean with respect to files, but I figured it was 
an improvement to my prior approach which was to directly alter the sch files 
afterwards, plus I believe some other PCB suites do (or did) it this way. 
Basically the PCB editor provides a log of changes to reference designations 
and record it as was/is (i.e. C19 C6 means rename C9 as C6). 

Nevertheless, I was unaware of the KiwayMailIn() functions but I figured 
something like that might exist based upon the behavior of Kicad when I had 
both PCBnew and eeSchema open. I will look into this further as it sounds like 
a superior approach as it would ensure the schematic and the PCB remain 
coherent (if that is the right term).

You are right: this would not be a tool per se but a command run from the menu. 
Again, I apologize for my lack of relevant experience: I have written many 
thousands of lines of embedded c, but nothing in c++. As such I am new to the 
world of GUIs, objects, and so on, and the relevant terminology.

Given this would be a command run from the menu, is there a guide to adding one 
somewhere for PCBnew and/or eeSchema? 


Thanks again!

Brian
-----Original Message-----
From: Seth Hillbrand <s...@hillbrand.org> 
Sent: January 4, 2019 1:19 PM
To: Brian Piccioni <br...@documenteddesigns.com>
Cc: 'KiCad Developers' <kicad-developers@lists.launchpad.net>
Subject: Re: [Kicad-developers] Hoping to contribute but I have some questions

Am 2019-01-04 12:51, schrieb Brian Piccioni:
> I am still keen to attempt to incorporate geographical component 
> annotation into KiCad.

This could be an interesting feature.  I'll be keen to see what you come up 
with.

> The first thing I want to do is to add the ability for eeSchema to 
> import a “was/is” file to update schematic annotation.

I would prefer that you avoid files in this action.  They generally clutter the 
user space and have cross platform differences that can cause issues.  Instead, 
I would recommend that you look at the
KiwayMailIn() functions to define a new mail command from pcbnew -> eeschema.  
You could also define a command from eeschema to pcbnew requesting the position 
information.

> 1)    Where are the file IO functions? I have searched for (for example)
> LoadProjectFIle and find the prototype but not the actual function.
> Similarly I find the prototype for SaveEEFile() but not the actual 
> function.

I'd avoid these.  They are generally listed as *_plugin.cpp in the relevant 
program directories.  So eeschema has sch_plugin.cpp that is the base class for 
sch_legacy_plugin.cpp and sch_eagle_plugin.cpp.  
Similar things are done in pcbnew

> 2)    I would like to copy as much of the existing code and dialogs as
> possible (i.e. make new dialog based off another dialog) but when I 
> open, for example, dialog_annotate_base.h I see

All of the *_base files are generated from wxformbuilder.  These are the *.fbp 
files.  The files of the same name but without the _base extension are the 
overloaded classes that we write by hand.

> 3)    There is a guide on the Kicad documentation “Tool framework” which
> describes adding a tool to PCBNew. Is there a similar guide to adding 
> a tool/function to eeSchema? How do I go about this?

There is not currently a tool framework in Eeschema.  This will be coming in 
v6.  For now, I'd recommend not developing Eeschema tools as the framework will 
change.  That said, your proposed addition does not sound like a tool but 
rather a command or plugin that can be run from the menus.

Best-
Seth


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