Re: On screen text display high level method proposal

Andrea Viarengo wrote:
> I perfected my system to show the texts in Pipmak.

Wow, very cool! I'll definitely integrate this.

An idea that just occurred to me: would it make sense to put such
features that are implemented on top of Pipmak's (public) core
functionality into a separate namespace, maybe "pipmaklib" or something,
instead of "pipmak"? We could conceivably end up with hundreds of them,
and the pipmak table would be a bit crowded then.

Could you transform your descriptions into something that fits into
Reference.tex? Otherwise the commit will have to wait until I get around
to doing that. (I'm trying to take a hard stance on this - no feature
committed without documentation, otherwise it will never get written.)

Small bug: weird things happen with the positioning of the text when the
window is resized while the demo is running. Do you think this can be
fixed in a reasonable way?

> I have prefered name pipmak.displaytext() respect pipmak.message() because
> last case could generate confusion with message passing, but you
> can found another more suitable name.

"displaytext" is fine with me.

I haven't scrutinized the code very thoroughly, but a few detail
comments nonetheless:

> --   Globals defined:
> --      pipmak.cachedtext      (table)
> --      pipmak.istextdisplayed (boolean)

Do these need to be global (i.e. do they need to survive leaving and
reentering the node)? If they do, I think pipmak_internal would be a
better place for them than pipmak. (For the command line history I chose
to use a plain global, outside of any table, but that's probably not
such a good example to follow.)

> panel { pipmak.newimage( pipmak.screensize()) }

Note to self: We need a way to make a panel or slide without any
background image. Storing and drawing such a big texture of pure
transparency is just a waste of resources.
But, in the meantime: you could make the image 1x1 pixel and stretch it
by setting the panel's "w" and "h". Or even leave it at 1x1 - patches
can also be outside of the rectangle of the panel, as seen on the Lua
command line.

  -Christian


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