Monday, October 21, 2002 Jens-Uwe Morawski wrote:
JUM> On Sun, 20 Oct 2002 23:59:31 +0200
JUM> Hans Hagen <[EMAIL PROTECTED]> wrote:
>> i come back to the tooltips later
JUM> before i forget it, i would like to give here an additional idea
JUM> about this topic:
JUM> IMO, the whole thing should be more general, maybe by calling it
JUM> 'balloons' or 'balloonwidget'. The usage in \footnote, \tooltip or
JUM> \cite is only an instance of the more general balloon-object.
JUM> For example, i would like to use such a ballon-widget as a
JUM> dropdown-menu in an interactive document that contains
JUM> a list of chapters, ...:
JUM> \balloon[placement={below,centered},
JUM> frameclass=DropMenu,
JUM> opendirection=down,
JUM> openaction=OnClick]
JUM> {Chapters}
JUM> {\placelist
JUM> [chapter]
JUM> [criterium=all,
JUM> alternative=a,
JUM> pagenumber=no,
JUM> interaction=all]}
JUM> and tooltips are then:
JUM> \defineballoon[tooltip][...]
I have a draft implementation for this.
By now, the only thing
that can be configured is the framecommand. I decided to use this
instead of a frameclass because it's even more flexible
(with frameclass, you need to define a different frame class for each
different ballon type, even if changes are small; this way, small
changes can be applied more easily when defining new tooltips.)
Put the following code in your cont-new.tex file or in your
cont-loc.tex file (whichever you use for customizations), until
Hnas decides to pass it to the core. I hope to come out myself
with more customization options, but I would have to study fields
and co. Maybe I'll leave that to Hans though.
BTW, your stuff seems to more oriented towards what Hans called
"helps" rather than tooltips, but I don't know much about this
feature.
Anyway, here's the code for custom balloons. Hope I didn't
reinvent the wheel ...
===== BEGIN CODE =====
% Redefine tooltips as a subclass of the more generic balloon
% class
\startconstants all
framecommand: framecommand
\stopconstants
\def\defineballoon[#1][#2]{%
\@EA\def\csname#1\endcsname
{\dodoubleempty\doballoon[#1]}%
\@EA\def\csname\e!stel#1\e!in\endcsname
{\dodoubleempty\setupballon[#1]}%
\setupballoon[#1][#2]}
% Currently only supports framecommand
\def\setupballoon[#1][#2]{%
\getparameters[balloon:#1:][#2]
}
\def\doballoon[#1][#2]#3#4%
{\bgroup
\setupfields[\v!reset]%
\useJSscripts[fld]%
\setbox0\hbox
{\mindermeldingen
\nextsystemfield
\trialtypesettingtrue
\setbox0=\hbox{#3}%
\trialtypesettingfalse
\definesymbol
[\currentsystemfield:txt]
[{\getvalue{balloon:#1:\c!framecommand}{#4}}]%
\trialtypesettingtrue
\setbox2=\hbox{\symbol[\currentsystemfield:txt]}%
\trialtypesettingfalse
\definefield
[\currentsystemfield:txt][check]
[dummy][\currentsystemfield:txt][\currentsystemfield:txt]%
\setupfield
[dummy]
[\c!kader=\v!uit,
\c!gebieduit=JS(Hide_Field{\currentsystemfield:txt}),
\c!optie=\v!verborgen]%
\hbox to \zeropoint
{\dimen0\wd2\advance\dimen0 -\wd0
\doifelse{#2}\v!links
{\hskip-\dimen0}
{\doif{#2}\v!midden
{\hskip-.5\dimen0}}%
\lower\openlineheight % this needs to be configurable
\hbox to \zeropoint
{\fitfield[\currentsystemfield:txt]}}%
\dimen0=\ifdim\wd0=\zeropoint 3em\else\wd0\fi
% Should the following be configurable too?
\definesymbol
[\currentsystemfield:but]
[{\framed[\c!hoogte=2ex,\c!breedte=\dimen0,\c!kader=\v!uit]{}}]%
\definefield
[\currentsystemfield:but][push]
[dummy][\currentsystemfield:but][\currentsystemfield:but]%
\setupfield
[dummy]
[\c!kader=\v!uit,
\c!optie=,
\c!gebiedin=JS(Vide_Field{\currentsystemfield:txt}),
\c!gebieduit=JS(Hide_Field{\currentsystemfield:txt})]%
\lower2ex % this should be configurable
\hbox to \zeropoint
{\fitfield[\currentsystemfield:but]}%
#3}%
\ht0=\ht\strutbox\dp0=\dp\strutbox\box0
\egroup}
% Redefines the old tooltip with the new command ...
\defineballoon[tooltip][\c!framecommand={\inframed[\c!kader=\v!uit,\c!achtergrond=\v!raster]}]
===== END CODE =====
--
Giuseppe "Oblomov" Bilotta
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