hard centering

[Joel Burget]

Hi all,

I have a quick question I'd love suggestions on. I'm trying to render a sequence of (machine code) instructions for an interactive debugger I'm writing. The user presses right, it goes to the next instruction / machine state. Left returns to the previous state. I'd love to show instructions across the screen such that the current instruction is always centered. The subtlety that I don't know how to do is centering based only on the current instruction (pushing around the other instructions).

Thanks in advance,

Joel

[Jonathan Daugherty]

Hello,

> The subtlety that I don't know how to do is centering based only on
> the current instruction (pushing around the other instructions).

I'm not quite sure what you mean by "pushing around the other
instructions." Would it be possible for you to mock up (in an e-mail,
say) the aspect of the UI you want?

--
Jonathan Daugherty

[Joel Burget]

I tweeted my WIP (https://twitter.com/dino_joel/status/961781595626713088). It's cut off around the edges but hopefully it'll do to illustrate what I'm going for. The blue instruction is the currently executing one and to the left and right you can see previous and next instructions.

[Jonathan Daugherty]

> I tweeted my WIP (https://twitter.com/dino_joel/status/961781595626713088).
> It's cut off around the edges but hopefully it'll do to illustrate what I'm
> going for. The blue instruction is the currently executing one and to the
> left and right you can see previous and next instructions.

It's a little tricky and requires writing a custom widget; I've attached
a program that might do what you want.

--
Jonathan Daugherty

[Joel Burget]

I should also add that the gap between the centered instructions and the other is not intentional. It’s due to the crude heuristic I was using to add the previous and upcoming instructions both of the same width.

[Joel Burget]

That's perfect. Thank you.