summaryrefslogtreecommitdiff
path: root/texmf-dist/source/latex/artthreads/artthreads.dtx
blob: ad68e80464b6fbc6964e9333edaddb93f8c59d17 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
%\iffalse
%<*copyright>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% artthreads.sty package,                              %%
%% Copyright (C) 2016 -- 2020                           %%
%%   dpstory@uakron.edu                                 %%
%%                                                      %%
%% This program can redistributed and/or modified under %%
%% the terms of the LaTeX Project Public License        %%
%% Distributed from CTAN archives in directory          %%
%% macros/latex/base/lppl.txt; either version 1 of the  %%
%% License, or (at your option) any later version.      %%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%</copyright>
%<package>\NeedsTeXFormat{LaTeX2e}[1997/12/01]
%<package>\ProvidesPackage{artthreads}
%<package> [2020/07/09 v1.3.1 Support for article threads (dps)]
%<*driver>
\documentclass{ltxdoc}
\usepackage[colorlinks,hyperindex=false]{hyperref}
\usepackage{fancyvrb,array,calc}
%\pdfstringdefDisableCommands{\let\\\textbackslash}
\EnableCrossrefs
\CodelineIndex
\RecordChanges
\bgroup\ttfamily
\gdef\brpr#1{\char123\relax#1\char125\relax}\egroup
\let\darg\brpr
\let\env\texttt
\let\opt\texttt
\let\app\textsf
\let\pkg\textsf
\let\tops\texorpdfstring
\def\nmpsep#1{\hskip-\marginparsep\texttt{#1}}
\def\ameta#1{\ensuremath{\langle\textsl{\texttt{#1}}\rangle}}
\def\meta#1{\textsl{\texttt{#1}}}
\def\SUB#1{\ensuremath{{}_{\mbox{\scriptsize\ttfamily#1}}}}
\def\cs#1{\texttt{\bslash#1}}
\def\EXCL{!}
\DeclareRobustCommand{\tmspace}[3]{%
  \ifmmode\mskip#1#2\else\kern#1#3\fi\relax}
\renewcommand{\,}{\tmspace+\thinmuskip{.1667em}}
\let\thinspace\,
\renewcommand{\!}{\tmspace-\thinmuskip{.1667em}}
\let\negthinspace\!
\renewcommand{\:}{\tmspace+\medmuskip{.2222em}}
\let\medspace\:
\newcommand{\negmedspace}{\tmspace-\medmuskip{.2222em}}
\renewcommand{\;}{\tmspace+\thickmuskip{.2777em}}
\let\thickspace\;
\newcommand{\negthickspace}{\tmspace-\thickmuskip{.2777em}}
\makeatletter
\renewcommand{\paragraph}
    {\@startsection{paragraph}{4}{0pt}{6pt}{-3pt}
    {\normalfont\normalsize\bfseries}}
\renewenvironment{quote}[1][]
   {\def\@rgi{#1}\ifx\@rgi\@empty
    \let\rghtm\@empty\else\def\rghtm{\rightmargin\leftmargin}\fi
    \list{}{\rghtm}%{\rightmargin\leftmargin}%
    \item\relax}
   {\endlist}
\makeatother
\InputIfFileExists{aebdocfmt.def}{\PackageInfo{artthreads}{Inputting aebdocfmt.def}}
    {\def\IndexOpt{\DescribeMacro}\def\IndexKey{\DescribeMacro}\let\setupFullwidth\relax
     \PackageInfo{artthreads}{aebdocfmt.def cannot be found}}
\begin{document}
\def\CMD#1{\textbackslash#1}
  \GetFileInfo{artthreads.sty}
  \title{\textsf{artthreads}: Support for article threads}
  \author{D. P. Story\\
    Email: \texttt{dpstory@acrotex.net}}
  \date{processed \today}
  \maketitle
  \tableofcontents
  \DocInput{artthreads.dtx}
\IfFileExists{\jobname.ind}{\newpage\setupFullwidth\PrintIndex}{\paragraph*{Index}
    The index goes here.\\Execute
    \texttt{makeindex -s gind.ist -o artthreads.ind artthreads.idx} on the command line
    and recompile \texttt{artthreads.dtx}.}
\IfFileExists{\jobname.gls}{\PrintChanges}{\paragraph*{Change History} The list of
    changes goes here.\\Execute
    \texttt{makeindex -s gglo.ist -o artthreads.gls artthreads.glo} on the command line
    and recompile \texttt{artthreads.dtx}.}
\end{document}
%</driver>
% \fi
%
% \MakeShortVerb{|}
% \InputIfFileExists{aebdonotindex.def}{\PackageInfo{artthreads}{Inputting aebdonotindex.def}}
%    {\PackageInfo{artthreads}{aebdonotindex.def cannot be found}}
%
%    \begin{macrocode}
%<*package>
%    \end{macrocode}
% \changes{v1.2}{2016/05/02}{Modified documentation to reflect new \string\textsf{DC} thread icons.}
%
% \section{Introduction}
% This package is used to create \textit{article threads} around blocks of content. Generally,
% article threads are used with multi-column documents, such as newspapers or newsletters, or
% anything that uses a multi-column format.
%
% The creation of the article threads should occur as the final step of the document composition.
% There is nothing automatic about placing the threads, {\TeX} does not lend itself to the creation
% of the threads. For the purpose of placing the threads, the options \texttt{preview} and
% \texttt{viewMagWin} are integral.
%
% \section{Options and Required Packages}
%    \begin{macrocode}
\RequirePackage{xkeyval}
%    \end{macrocode}
% \paragraph*{Driver options.} These options are  \opt{dvips} (the default),
% \opt{pdftex}, \opt{luatex}, and \opt{xetex}
% are automatically detected, other drivers supported are \opt{dvipdfm} and
% \opt{dvipdfmx}.
%
% \paragraph*{Preview options.} The \texttt{preview}
% option is a carry over from \textsf{eforms}. When selected, all form fields are outlined; useful when
% setting the location of fields in a dvi previewer. The other option is \texttt{viewMagWin}
% will show the viewing windows surrounding the target. This is the rectangle
% that will be jumped to. Use this option to adjust the size of the window to your needs.
% When either of the last two options has an exclamation point prior, that means to
% turn off the switch. You can conveniently use \texttt{viewMagWin} to see the viewing window,
% then change it to \texttt{!viewMagWin} to remove the visible window. Cool.
% Similarly, you can turn off \texttt{preview} using \texttt{!preview}.
%    \begin{macrocode}
%    \end{macrocode}
% \leavevmode\IndexOpt{pdftex}^^A
% \IndexOpt{luatex}^^A
% All options are passed to the \pkg{fitr} package, which contains a lot of the code
% used in this package.
%    \begin{macrocode}
\DeclareOptionX{pdftex}{\PassOptionsToPackage{\CurrentOption}{fitr}}
\DeclareOptionX{luatex}{\PassOptionsToPackage{\CurrentOption}{fitr}}
%    \end{macrocode}
% \leavevmode\IndexOpt{dvips}^^A
% \IndexOpt{dvipsone}^^A
% Distiller based drivers.
%    \begin{macrocode}
\DeclareOptionX{dvips}{\PassOptionsToPackage{\CurrentOption}{fitr}}
\DeclareOptionX{dvipsone}{\PassOptionsToPackage{\CurrentOption}{fitr}}
%    \end{macrocode}
% \leavevmode\IndexOpt{xetex}^^A
% \IndexOpt{dvipdfm}^^A
% \IndexOpt{dvipdfmx}^^A
% \opt{xetex} and its variants.
%    \begin{macrocode}
\DeclareOptionX{dvipdfm}{\PassOptionsToPackage{\CurrentOption}{fitr}}
\DeclareOptionX{dvipdfmx}{\PassOptionsToPackage{\CurrentOption}{fitr}}
\DeclareOptionX{xetex}{\PassOptionsToPackage{\CurrentOption}{fitr}}
%    \end{macrocode}
% \leavevmode\IndexOpt{preview}^^A
% \IndexOpt[\protect\EXCL]{!preview}^^A
% \IndexOpt{viewMagWin}^^A
% \IndexOpt[\protect\EXCL]{!viewMagWin}^^A
% Preview preferences
%    \begin{macrocode}
\DeclareOptionX{preview}
  {\PassOptionsToPackage{\CurrentOption}{fitr}}
\DeclareOptionX{!preview}
  {\PassOptionsToPackage{\CurrentOption}{fitr}}
\DeclareOptionX{viewMagWin}
  {\PassOptionsToPackage{\CurrentOption}{fitr}}
\DeclareOptionX{!viewMagWin}
  {\PassOptionsToPackage{\CurrentOption}{fitr}}
%    \end{macrocode}
%    Any other options are passed on to \pkg{fitr}. One useful
%    option is \opt{gonative}, which creates no document JavaScript.
%    Consequently, the \texttt{latex\,->\,dvips\,->\,ps2pdf} workflow
%    is supported.
%    \begin{macrocode}
\DeclareOptionX*{\PassOptionsToPackage{\CurrentOption}{fitr}}
\ProcessOptionsX
%    \end{macrocode}
% \section{The Main Code}
% We require the package \textsf{fitr}, as we use many commands from that package.
% We pass all options to \textsf{fitr}.
% \changes{v1.3.1}{2020/07/09}{Require \string\pkg{fitr} package, dated 2020/07/09}
%    \begin{macrocode}
\RequirePackage{fitr}[2020/07/09]
%    \end{macrocode}
% Some scratch counters, lengths, boxes.
%    \begin{macrocode}
\newif\ifnewarticle
\newcounter{@rtBtnCnt}
\def\CntArt{0}\def\CntArtInfo{0}
\def\inc@CntMacro#1{{\@tempcnta#1\relax\advance\@tempcnta1\relax
    \xdef#1{\the\@tempcnta}}}
\def\artM@rk{[\space}
%    \end{macrocode}
% \subsection{\tops{\protect\cs{setThreadInfo}}{\textbackslash{setThreadInfo}} and its KV-pairs}
% We set up
% key-values\IndexKey{title}\IndexKey{author}\IndexKey{subject}^^A
% \IndexKey{keywords} for the thread \textsf{Info} dictionary. Only the title
% is required, that's why a default value of \texttt{thread-\ameta{num}} is otherwise provided.
% For \app{pdflatex} and \app{lualtex}, only \texttt{title} is supported.
%    \begin{macrocode}
\define@key{artthrd}{title}[]{\Hy@unicodefalse
  \pdfstringdef\threadTitle{#1}}
  \let\threadTitle\@empty
\define@key{artthrd}{author}[]{\pdfstringdef\threadAuthor{#1}}
  \let\threadAuthor\@empty
\define@key{artthrd}{keywords}[]{\pdfstringdef\threadKeywords{#1}}
  \let\threadKeywords\@empty
\define@key{artthrd}{subject}[]{\pdfstringdef\threadSubject{#1}}
  \let\threadSubject\@empty
%    \end{macrocode}
% Use \DescribeMacro{\setThreadInfo}\cmd{\setThreadInfo} prior to the opening of a
% new thread using \cs{cArticle}. Through its key-values, set the title, author,
% keywords, and subject of the thread. For \textsf{pdftex}, only title is supported.
%    \begin{macrocode}
\newcommand{\setThreadInfo}[1]{\inc@CntMacro\CntArtInfo
    \let\threadTitle\@empty\let\threadAuthor\@empty
    \let\threadKeywords\@empty\let\threadSubject\@empty
    \setkeys{artthrd}{#1}\ifx\threadTitle\@empty
        \def\threadTitle{thread-\CntArtInfo}\fi}
\def\bArtErrMsg{When starting a new article thread
    (\string\bArticle)\MessageBreak
    first use \string\setThreadInfo\space to set the title,\MessageBreak
    author, subject, and keywords}
%    \end{macrocode}
% \paragraph*{Additional key-values for threads} In addition to the key-values provided
% by \textsf{fitr}, we provide a few more. The two keys
% \IndexKey{addtow}\texttt{addtow} and \IndexKey{addtoh}\texttt{addtoh}
% adds to the reading border of the threads. These are set through the
% command \DescribeMacro{\setAddToBorder}\cs{setAddToBorder}. For the most part,
% choices for \texttt{addtow} (add to the width) and \texttt{addtoh} (add to the height)
% should be set for the whole document. Initially, \texttt{addtow=0,addtoh=0}.
%    \begin{macrocode}
\define@key{@rtthrd}{addtow}[0]{%
    \fitr@defaultbp{\artthrd@@addtow}{#1}}
\def\artthrd@@addtow{0}
\define@key{@rtthrd}{addtoh}[0]{%
    \fitr@defaultbp{\artthrd@@addtoh}{#1}}
\def\artthrd@@addtoh{0}
\newcommand{\setAddToBorder}[1]{\setkeys{@rtthrd}{#1}}
%    \end{macrocode}
% \subsection{The \tops{\protect\cs{bArticle} and \protect\cs{cArticle}}{\textbackslash{bArticle} and \textbackslash{cArticle}} commands}
% The \DescribeMacro{\bArticle}\cmd{\bArticle} is used to start an article thread. The thread
% may continue with \cs{cArticle}. Both commands have a required argument, consisting of
% key-values defined by \textsf{fitr}.
% The following is the syntax, with appropriate keys defined in \texttt{fitr}.
%\begin{Verbatim}[xleftmargin=\parindent,codes={\catcode`\%=9},commandchars={!()}]
%\cArticle{lift=!ameta(length),width=!ameta(length),height=!ameta(length)}
%\end{Verbatim}
%    \begin{macrocode}
\newcommand{\bArticle}{\begingroup\inc@CntMacro\CntArt
    \ifnum\CntArt=\CntArtInfo\relax\else
    \PackageError{artthreads}{\bArtErrMsg}{See package documentation
    for \string\setThreadInfo}\fi
    \newarticletrue\set@rectart}
%    \end{macrocode}
% The only difference between \DescribeMacro{\cArticle}\cmd{\cArticle} and
% \cmd{\bArticle} is the stepping of the counter \cmd{\CntArt}
%  and the setting of the switch \cmd{ifnewarticle}.
%    \begin{macrocode}
\newcommand{\cArticle}{\begingroup\newarticlefalse\set@rectart}
%    \end{macrocode}
% \cmd{\set@rectart} continues \cs{bArticle}/\cs{cArticle}.
%    \begin{macrocode}
\newcommand{\set@rectart}[1]{%\def\fitr@artrect@argi{#1}% dps
    \edef\temp@exp{\noexpand\setkeys{fitr}{#1}}\temp@exp
    \set@@rectart}
%    \end{macrocode}
% \cmd{\set@@rectart} is the main command for building the thread.
%    \begin{macrocode}
\def\set@@rectart{\def\fitr@setBL{0pt}%
  \@ifundefined{ef@Bbox}{\let\fitr@FLB@ction\Bbox}%
    {\let\fitr@FLB@ction\ef@Bbox}%
  \get@fitr@dimen{%
    \parbox[\fitr@@refPt][\fitr@@height]{\fitr@@width}%
    {\kern0pt\fitr@FLB@ction{\fitr@@width}{\fitr@@height}\kern0pt}%
  }%
  \makebox[0pt][l]{\hspace*{\fitr@@shift}\smash{%
    \raisebox{\fitr@@lift-\fitr@setBL}{%
%    \end{macrocode}
% Actually insert the thread code here by inserting \cs{setThre@d}.
%    \begin{macrocode}
      \setThre@d{\artthrd@@addtow}{\artthrd@@addtoh}%
      \unhbox\fitr@bbox
      \fitr@urxury@fixup{\artthrd@@addtow}{\artthrd@@addtoh}{}%
  }}}\setlength{\fboxsep}{0pt}%
%    \end{macrocode}
% Now place an extended border around the viewing area
%    \begin{macrocode}
  \ifviewMagWin
    \fitr@length=\artthrd@@addtow bp
    \fitr@length=2\fitr@length
    \addtolength{\fitr@length}{\fitr@@width}%
    \edef\fitr@@width{\the\fitr@length}%
    \fitr@length=\artthrd@@addtoh bp
    \fitr@length=2\fitr@length
    \addtolength{\fitr@length}{\fitr@@height}%
    \edef\fitr@@height{\the\fitr@length}%
    \setlength\fitr@length{-\artthrd@@addtow bp}%
    \addtolength\fitr@length{\fitr@@shift}%
    \makebox[0pt][l]{\hspace*{\fitr@length}\smash{%
      \setlength\fitr@length{\fitr@@lift-\fitr@setBL}%
      \if\fitr@@refPt b%
        \addtolength\fitr@length{-\artthrd@@addtoh bp}\else
      \if\fitr@@refPt t%
        \addtolength\fitr@length{\artthrd@@addtoh bp}%
      \fi\fi
      \raisebox{\fitr@length}%
      {\fbox{\parbox[\fitr@@refPt][\fitr@@height]%
      {\fitr@@width}{\kern0pt\hfill\vfill\kern0pt}}}}%
    }%
  \fi
\endgroup}
%    \end{macrocode}
% \subsection{The driver dependent commands}
% We begin with a required definition to enable \app{lualatex} to function correctly.
%    \begin{macrocode}
\ifluatex\protected\def\pdfthread{\pdfextension thread }\fi
%    \end{macrocode}
%    \DescribeMacro\AT@ThrBbox\nmpsep{\darg{\ameta{add-wd}\darg{\ameta{add-ht}}}} The definition
%    of \cmd{\set@rtThrd} depends on the driver. The arguments are dimensionless numbers, representing
%    Adobe points. The \cs{AT@ThrBbox} macros perform different tasks, one of which is to calculate the dimensions
%    of the bounding box for the viewing rectangle. It is used in \cs{set@rtThrd}, defined below.
% \changes{v1.3}{2020/07/03}{Add special definition for threads in the case of lualatex}
% \changes{v1.3}{2020/07/03}{Added \string\cs{Thread}}
%    \begin{macrocode}
\if@fitr@dvipdfm
%    \end{macrocode}
%    For the \app{xelatex} and friends
%    \begin{macrocode}
\def\AT@ThrBbox#1#2{%
  \fitr@length=#1bp
  \fitr@length=2\fitr@length
  \advance\fitr@length\wd\fitr@bbox
  \edef\fitr@xetex@view@width{\the\fitr@length}%
  \fitr@length=#2bp
  \advance\fitr@length\ht\fitr@bbox
  \edef\fitr@xetex@view@height{\the\fitr@length}%
  \fitr@length=#2bp
  \advance\fitr@length\dp\fitr@bbox
  \edef\fitr@xetex@view@depth{\the\fitr@length}%
}\else
\ifpdf
%    \end{macrocode}
%    For the \app{pdftex} and friends
%    \changes{v1.3}{2020/07/03}{Use \string\cs{ifpdf}}
%    \begin{macrocode}
\def\AT@ThrBbox#1#2{%
  \fitr@length=#1bp
  \fitr@length=2\fitr@length
  \advance\fitr@length\wd\fitr@bbox
  \edef\fitr@pdftex@view@width{\the\fitr@length}%
  \fitr@length=#2bp
  \advance\fitr@length\ht\fitr@bbox
  \edef\fitr@pdftex@view@height{\the\fitr@length}%
  \fitr@length=#2bp
  \advance\fitr@length\dp\fitr@bbox
  \edef\fitr@pdftex@view@depth{\the\fitr@length}%
}\else
\ifx\fitr@driver\fitr@dvipsone@driver
%    \end{macrocode}
%    For the \app{dvipsone} driver
%    \begin{macrocode}
\def\AT@ThrBbox#1#2{%
  currentpoint 2 copy %
  \the\fitr@depth\space add #2\space PDFtoTeX add      % y1
  exch #1\space PDFtoTeX sub exch                      % x1
  4 2 roll exch
  \the\fitr@width\space add #1\space PDFtoTeX add exch % x2
  \the\fitr@height\space sub #2\space PDFtoTeX sub}    % y2
\else
\ifx\fitr@driver\fitr@dvips@driver
%    \end{macrocode}
%    For the \app{dvips} driver
%    \begin{macrocode}
\def\AT@ThrBbox#1#2{% Uses \fitr@bbox
  currentpoint 2 copy %
  \the\fitr@depth\space SPtoDvips add
      #2\space BPToDvips add                  % y1
  exch #1\space BPToDvips sub exch            % x1
  4 2 roll exch
  \the\fitr@width\space SPtoDvips add
      #1\space BPToDvips add exch             % x2
  \the\fitr@height \space SPtoDvips sub
  #2\space BPToDvips sub}                     % y2
\fi\fi\fi\fi
%    \end{macrocode}
% \paragraph*{Code to set the thread} The \cs{setThre@d} macros are driver dependent.
% \medskip\par\noindent
% \DescribeMacro\setThre@d\nmpsep{\darg{\ameta{add-wd}\darg{\ameta{add-ht}}}} This macro
% strips out the dimensions of its arguments (10bp becomes 10) and passes these new arguments
% to \cmd{\set@rtThrd}.
%    \begin{macrocode}
\def\setThre@d#1#2{%
  \fitr@defaultbp{\aWd}{#1}\fitr@defaultbp{\aHt}{#2}%
  \edef\tmp@exp{\noexpand\set@rtThrd{\aWd}{\aHt}}\tmp@exp}
\if@fitr@dvipdfm
%    \end{macrocode}
%    \DescribeMacro\set@rtThrd\nmpsep{\darg{\ameta{add-wd}\darg{\ameta{add-ht}}}} The definition
%    of \cmd{\set@rtThrd} depends on the driver. The arguments are dimensionless numbers, representing
%    Adobe points.\medskip\par\noindent
%    For the \textsf{xelatex} and friends
%    \begin{macrocode}
\def\set@rtThrd#1#2{\AT@ThrBbox{#1}{#2}%
  \smash{\raisebox{-\fitr@xetex@view@height+#2bp}%
      {\makebox[0pt][l]{\hspace*{-#1bp}%
  \@pdfm@mark{thread @artthrd\CntArt\space
  width \fitr@xetex@view@width\space
  height \fitr@xetex@view@height\space
  depth \fitr@xetex@view@depth\space
  << /Title (\threadTitle)
  \ifnewarticle
  /Author (\threadAuthor)
  /Subject (\threadSubject)
  /Keywords (\threadKeywords)\fi >>}}}}}\else
\ifpdf
%    \end{macrocode}
%    For \app{pdftex} and friends
%    \changes{v1.3}{2020/07/03}{Use \string\cs{ifpdf}}
%    \begin{macrocode}
\def\set@rtThrd#1#2{\AT@ThrBbox{#1}{#2}%
  \makebox[0pt][l]{\hspace*{-#1bp}%
  \pdfthread
    width  \fitr@pdftex@view@width\space
    height \fitr@pdftex@view@height\space
    depth  \fitr@pdftex@view@depth\space
    name {\threadTitle}}}\else
%    \end{macrocode}
%    For drivers that use PostScript and the \textsf{\textbf{pdfmark}}.
%    \changes{v1.1}{2016/04/09}{Removed the Page key and dependence on the
%       \string\textsf{refcount} package}
%    \begin{macrocode}
\def\set@rtThrd#1#2{\literalps@out{\artM@rk
  /Rect [\AT@ThrBbox{\artthrd@@addtow}{\artthrd@@addtoh}]
  /Title (\threadTitle)
  \ifnewarticle
    /Author (\threadAuthor)
    /Subject (\threadSubject)
    /Keywords (\threadKeywords)\fi
    /ARTICLE pdfmark}}
\fi\fi
%    \end{macrocode}
% \subsection{Some navigation commands}
%    \begin{macrocode}
\let\threadTitle\@empty
%    \end{macrocode}
%    \DescribeMacro{\Thread}\nmpsep{\darg{\ameta{thread-title}}} The action to start
%    read a thread whose title is \ameta{thread-title}. For example,
%    |\setLink[\A{\Thread{Lipsum}}]{Read Lipsum}| \medskip
%    \begin{macrocode}
\providecommand{\Thread}[1]{/S/Thread/D(#1)}
%    \end{macrocode}
%    \DescribeMacro\shArticlesPaneActn\DescribeMacro\sArticlesPaneActn Actions for show/hid
%    articles pane and to just show articles pane (The named action \texttt{ArticleThreads} is
%    undocumented, don't remember show I got this name.) In addition to these two, we combine
%    them with read thread actions: \DescribeMacro\shArticlesPaneReadActn\DescribeMacro\sArticlesPaneReadActn
%    \begin{macrocode}
\def\shArticlesPaneActn{\Named{ShowHideArticles}}
\def\sArticlesPaneActn{\Named{ArticleThreads}}
\def\shArticlesPaneReadActn{\shArticlesPaneActn
  \Next{\Thread{\threadTitle}}}
\def\sArticlesPaneReadActn{\sArticlesPaneActn
  \Next{\Thread{\threadTitle}}}
%    \end{macrocode}
%    \DescribeMacro\readArticle\nmpsep{\darg{\ameta{thread-title}}} is a macro intended
%    to be passed to a push button action through the \cs{cmd} key. For example,\medskip
%\begin{Verbatim}[xleftmargin=\parindent,codes={\catcode`\%=9},commandchars={!()}]
%\showArticlePaneRead[!textbf(\cmd{\readArticle{more Lipsum}})]{}{11bp}
%\end{Verbatim}
%It should be used with \cs{toggleArticlePaneRead} and \cs{showArticlePaneRead} (push buttons). Alternatively,
%these actions can be done through a link:
%\begin{Verbatim}[xleftmargin=\parindent,codes={\catcode`\%=9},commandchars={!()}]
%\setLink[\cmd{\readArticle{Lipsum}}
%\A{\shArticlesPaneReadActn}]{Lipsum}
%\end{Verbatim}
%    \begin{macrocode}
\def\readArticle#1{\Hy@unicodefalse
  \pdfstringdef\AT@x{#1}\edef\threadTitle{\AT@x}}
\def\chkThreadName{%
  \ifx\threadTitle\@empty
    \global\let\isThrTtl\ef@NO
    \def\readArtPresets{\cmd{\let\Next\@gobble}}\else
    \global\let\isThrTtl\ef@YES
    \let\readArtPresets\@empty
  \fi
}
\def\readThreadMsg{\ifx\isThrTtl\ef@NO
  \PackageWarning{artthreads}{No thread title specified to read}\fi}
%    \end{macrocode}
%    \DescribeMacro\toggleArticlePane\nmpsep{[\ameta{KV-pairs}]\darg{\ameta{wd}}\darg{\ameta{ht}}}
%    A push button whose action toggles the Articles pane open and closed.
%    \begin{macrocode}
\newcommand{\toggleArticlePane}[3][]{\stepcounter{@rtBtnCnt}%
  \pushButton[\CA{Article}\TU{Toggle Articles Pane}#1
  \A{\shArticlesPaneActn}
]{TAPBtn\the@rtBtnCnt}{#2}{#3}}
%    \end{macrocode}
%    \DescribeMacro\toggleArticlePaneRead\nmpsep{[\ameta{KV-pairs}]\darg{\ameta{wd}}\darg{\ameta{ht}}}
%    A push button whose action us to toggle the Articles pane state (show/hide) and to begin reading the
%    thread titled \cs{threadTitle}. If this command is placed after the \cs{setThreadInfo}
%    command, then \cs{threadTitle} is the title set by the title key of \cs{setThreadInfo}.
%    \begin{macrocode}
\def\tooltipTogglePaneRead#1{\def\ttToggleP@neRead{#1}}
\tooltipTogglePaneRead{Toggle Articles pane and read
  the article \threadTitle}
\newcommand{\toggleArticlePaneRead}[3][]{\begingroup
  \stepcounter{@rtBtnCnt}\pushButton[\CA{Article}#1
  \TU{\ttToggleP@neRead}\cmd{\chkThreadName}
  \presets{\readArtPresets}\A{\shArticlesPaneReadActn}
]{TAPRBtn\the@rtBtnCnt}{#2}{#3}\readThreadMsg\endgroup}
%    \end{macrocode}
%    \DescribeMacro\showArticlePane\nmpsep{[\ameta{KV-pairs}]\darg{\ameta{wd}}\darg{\ameta{ht}}} A push button
%    whose action is to show the Articles pane.
%    \begin{macrocode}
\newcommand{\showArticlePane}[3][]{\stepcounter{@rtBtnCnt}%
  \pushButton[\CA{Article}\TU{Show Articles Pane}#1
  \A{\sArticlesPaneActn}
]{SAPBtn\the@rtBtnCnt}{#2}{#3}}
%    \end{macrocode}
%    \DescribeMacro\showArticlePaneRead\nmpsep{[\ameta{KV-pairs}]\darg{\ameta{wd}}\darg{\ameta{ht}}}
%    A push button whose action is to show the Articles and to begin reading the
%    thread titled \cs{threadTitle}. If this command is placed after the \cs{setThreadInfo}
%    command, then \cs{threadTitle} is the title set by the title key of \cs{setThreadInfo}.
%    \begin{macrocode}
\def\tooltipShowPaneRead#1{\def\ttShowP@neRead{#1}}
\tooltipShowPaneRead{Show Articles pane and read
  the article \threadTitle}
\newcommand{\showArticlePaneRead}[3][]{\begingroup
  \stepcounter{@rtBtnCnt}\pushButton[\CA{Article}#1
  \TU{\ttShowP@neRead}\cmd{\chkThreadName}
  \presets{\readArtPresets}\A{\sArticlesPaneReadActn}
]{SAPRBtn\the@rtBtnCnt}{#2}{#3}\readThreadMsg\endgroup}
%    \end{macrocode}
%    \begin{macrocode}
%</package>
%    \end{macrocode}
%\Finale
\endinput