From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Draft version of document
Date: Tue, 07 Aug 2012 16:41:41 +0200 [thread overview]
Message-ID: <50212925.3050900@wxs.nl> (raw)
In-Reply-To: <CAF=dkzxa88YnERqyMD_8z=MmgXiE2=9=K9nBQMQ8WN=L1_1PBA@mail.gmail.com>
On 7-8-2012 14:51, Sietse Brouwer wrote:
> Hi Robert,
> Debugged and all, here you go.
> Cheers,
> Sietse
>
> \useexternalfigure[img:fig:cow][cow.pdf]
> \useexternalfigure[img:fig:mill][mill.png]
>
> \starttext
Actually, this is something that should be doable with user data weren't
it that for floats that's not yet available. So I've added it to the
core (will be in next upload) ...
% macros=mkvi
\unprotect
% let's pick up two arguments
\unexpanded\def\strc_floats_start_place#tag%
{\flushnotes
\page_otr_command_flush_side_floats % here !
\strc_floats_begin_group
\strc_floats_set_current_tag{#tag}%
\dodoubleempty\strc_floats_start_place_indeed}
% and store the user data for a while
\def\strc_floats_start_place_indeed[#settings][#userdata]%
{\strc_floats_reset_variables
\edef\savedfloatlocation{\floatcaptionparameter\c!location}%
\setupcurrentfloatcaption[\c!location=,\c!reference=,\c!title=,\c!marking=,\c!list=,\c!bookmark=,#settings]%
\def\savedfloatuserdata{#2}%
\edef\floatlocation{\floatcaptionparameter\c!location}%
\setupcurrentfloatcaption[\c!location=\savedfloatlocation]%
\ifx\floatlocation\empty
\edef\floatlocation{\floatparameter\c!default}%
\fi
\doifinsetelse\v!split\floatlocation\strc_floats_place_next_box_split\strc_floats_place_next_box_normal
\bgroup
\ignorespaces}
% here we need to expand it one level (else detokenize will spoil it)
\def\strc_floats_place_packaged_boxes
{\expandafter\strc_floats_place_packaged_boxes_indeed\expandafter{\savedfloatuserdata}}
\def\strc_floats_place_packaged_boxes_indeed#userdata%
{\bgroup
\ifconditional\usesamefloatnumber
\globallet\currentfloatnumber \previousfloatnumber
\globallet\currentfloatattribute \empty
\globallet\currentfloatsynchronize\relax
\else
\ifnofloatnumber \else \ifnofloatcaption \else
\strc_counters_increment{\strc_counters_the\currentfloat}%
\fi \fi
\strc_counters_register_component
{float}%
\setupcurrentfloatcaption
\floatcaptionparameter
\detokenizedfloatcaptionparameter
\relax
\relax
\relax
[\c!name=\currentfloat,%
\s!counter=\strc_counters_the\currentfloat,%
\s!hascaption=\ifnofloatcaption \v!no\else\v!yes\fi,%
\s!hasnumber=\ifnofloatnumber \v!no\else\v!yes\fi,%
\s!hastitle=\ifemptyfloatcaption\v!no\else\v!yes\fi]%
[#userdata]%
\globallet\previousfloatnumber
\m_strc_counters_last_registered_index
\globallet\currentfloatnumber
\m_strc_counters_last_registered_index
\globallet\currentfloatattribute
\m_strc_counters_last_registered_attribute
\globallet\currentfloatsynchronize\m_strc_counters_last_registered_synchronize
\fi
%
\global\setfalse\usesamefloatnumber % one shot
% check float box
\strc_floats_set_natural_dimensions\nextbox
\global\setbox\floatbox\vbox{\floatparameter\c!command{\box\nextbox}}%
\strc_floats_set_natural_dimensions\floatbox
\ifdim\htdp\floatbox=\zeropoint
\showmessage\m!floatblocks{11}\empty
\global\setbox\floatbox\vbox
{\dostarttagged\t!floatcontent\empty
\strc_floats_place_empty_box
\dostoptagged}%
\fi
% deal with lack of caption
\global\setbox\floatbox\vbox \floatcaptionattribute
{\doifelsemainfloatbody\currentfloatsynchronize\donothing
\unvbox\floatbox
\ifnofloatcaption
\vss
\fi}% gets rid of the depth (unless tabulate)
\egroup
% place the float
\strc_floats_set_box
\strc_floats_get_box
\global\insidefloatfalse}
% we need a raw untagged and expandable fetch:
\def\rawstructurelistuservariable#name%
{\ctxcommand{listuserdata("\currentlist",\currentlistindex,"#name")}}
\protect
% so, after some 5 lines patching we can do:
\starttext
\startplacefigure[reference=fig:mill,title={A Mill}][resource=mill]
\externalfigure[mill]
\stopplacefigure
\startplacefigure[reference=fig:cow,title={A Cow}][resource=cow]
\externalfigure[cow]
\stopplacefigure
\page
\unexpanded\def\FigureListEntry#1#2#3%
{\dontleavehmode
\tbox{\hbox to
2cm{\externalfigure[\rawstructurelistuservariable{resource}][height=1cm]\hss}}%
\hbox to 2em{#1\hss}%
#2\hfill
\hbox to 2em{\hss#3}%
\blank}
\setuplist[figure][alternative=command,command=\FigureListEntry]
\placelist[figure]
\stoptext
Of course, the 'command' is not that nice looking but that's for others
to improve.
(In a similar fashion one can associate a resource or whatever to a
section head and use it in a toc.)
Hans
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next prev parent reply other threads:[~2012-08-07 14:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-04 11:18 Roger Mason
2012-08-06 16:14 ` Sietse Brouwer
2012-08-07 9:19 ` Roger Mason
2012-08-07 12:51 ` Sietse Brouwer
2012-08-07 14:37 ` Hans Hagen
2012-08-07 14:41 ` Hans Hagen [this message]
2012-08-08 15:04 ` Sietse Brouwer
2012-08-08 17:48 ` Wolfgang Schuster
2012-08-08 21:36 ` Hans Hagen
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