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Re: Generic Button/Palette design pattern?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg114944] Re: Generic Button/Palette design pattern?
  • From: Jason Ledbetter <jasonbrent at gmail.com>
  • Date: Thu, 23 Dec 2010 03:56:02 -0500 (EST)
  • References: <AANLkTinE=OGgF+ED-TdWPTfd7-qFYFSq-Y8nKUd44Ese@mail.gmail.com>

I've now got this basically working. I was missing a ReleaseHold in the
Button form. That said, "CreatePalette" seems to have a bug (at least per my
expectations).

--snip--

o = {
   { "button1",
    HoldForm[NotebookWrite[EvaluationNotebook[], Cell["button1 pressed"]]]
},
   {"button2",
    HoldForm[NotebookWrite[EvaluationNotebook[], Cell["button2 pressed"]]]}
   };
Button[#[[1]], ReleaseHold[#[[2]]]] & /@ o
CreatePalette[%]

--snip--


The two buttons that appear in the notebook act as I expect. The two buttons
that appear in the palette only "beep" when I clicked.


I'm not sure how to troubleshoot what's going on under this.


-jbl



On Wed, Dec 22, 2010 at 4:58 PM, Jason Ledbetter <jasonbrent at gmail.com>wrote:

> Folk,
>
> I'm trying to write a generic palette that accepts as input a nested list
> with button names/actions.
>
> Apparently my weak comprehension of M is winning once again.
>
> First, I'm defining options as pair-wise values in a nested list:
>
> o = {
>   { "button1",
>    HoldForm[NotebookWrite[EvaluationNotebook[], Cell["button1 pressed"]]]
> },
>   {"button2",
>    HoldForm[NotebookWrite[EvaluationNotebook[], Cell["button2 pressed"]]]}
>   }
>
>
> I would expect that one can then do the following:
>
>
> Button[#[[1]],#[[2]]]&/@o
>
>
> This generates two buttons but the action for those buttons isn't what I'd
> expect. If I convert that output to "InputForm", the #[[2]] argument is
> apparently "{"button1",
>
>   HoldForm[NotebookWrite[EvaluationNotebook[], Cell["button1
> pressed"]]]}[[2]]"
>
>
> I can't fathom why.
>
>
> If I run:
>
>
> Print@#[[2]]&/@o
>
>
> I receive just the output I expect. e.g.,
> "NotebookWrite[EvaluationNotebook[], Cell[button1 pressed]]", etc.
>
>
> The ultimate goal is to do something like:
>
>
> CreatePalette[Button[Style[#[[1]], 12, FontFamily->"Times"], #[[2]],
> Appearance->"Palette", ImageSize->120]& /@ o, Saveable->False, Spacings->0]
>
>
> This allowing me to readily open a palette by just customizing what exists
> in the 'o' list.
>
>
> If anyone can point out what I'm missing that should apparently be obvious
> here, I'd appreciate it (And I'm almost positive my HoldForm[] usage is not
> correct yet).
>
>
> Thanks,
>
>
> -jbl
>


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