summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/source/latex/dashbox/dashbox.dtx
blob: 32f4d9113b0c1a18252cb85f719b64025dd69d28 (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
% \iffalse
%%
%% File `dashbox.dtx'.
%% Copyright (C) 1997-2001 Reuben Thomas (rrt@sc3d.org)
%% This file is distributed under the LaTeX Project Public License,
%% and comes with no warranty.
%%
%
%<*dtx>
\ProvidesFile{dashbox.dtx}
%</dtx>
%<driver> \ProvidesFile{dashbox.drv}
% \fi
%
% \iffalse
%<*driver>
\documentclass{ltxdoc}
\usepackage{url,dashbox}
\begin{document}
\DocInput{dashbox.dtx}
\end{document}
%</driver>
% \fi
%
% \GetFileInfo{dashbox.dtx}
% \CheckSum{336}
%
% \MakeShortVerb{\|}
%
% \changes{v1.00}{7 Mar 97}{First version (unreleased)}
% \changes{v1.10}{97}{Layered boxes added}
% \changes{v1.11}{2 Jun 97}{Minor formatting improvements; first release}
% \changes{v1.12}{28 Jul 01}{Made into a doc package; documentation
% added. Default number of layers changed to 3, and at signs inserted
% into private macro names. Tidied up some infelicities.}
% \changes{v1.13}{8 Aug 01}{Uncommented the TeX lines from
% |\NeedsTeXFormat| onwards; oops! Renamed to dashbox to avoid
% confusion.}
% \changes{v1.14}{11 Dec 01}{Changed ``dashed'' to ``dash'' in command
% names, to avoid confusion. Changed default number of layers back to 2.}
%
% \title{Dashed and layered boxes}
% \author{Reuben Thomas\\\url{rrt@sc3d.org}}
% \date{11th December 2001}
% \maketitle
%
% \begin{abstract}
% |dashbox| provides new commands similar to |\framebox| and |\fbox|
% to typeset dashed and layered boxes.
% \end{abstract}
%
%
% \section{User interface}
%
% The following commands are provided:
%
% \begin{itemize}
% \item[]\hskip-\leftmargin
% \DescribeMacro{\dbox}
%    |\dbox{|\textit{text}|}| works like |\fbox|, but the box is drawn
%    with \dbox{dashed lines}.
% \item[]\hskip-\leftmargin
% \DescribeMacro{\dashbox}
%    |\dashbox[|\textit{width}|][|\textit{pos}|]{|\textit{text}|}|
%    works like |\framebox|, but the box is drawn with
%    \dashbox[5cm][c]{dashed lines}. 
% \item[]\hskip-\leftmargin
% \DescribeMacro{\lbox}
%    |\lbox[|\textit{layers}|]{|\textit{text}|}| draws a
%    \lbox{\fbox{stack of boxes}} around its contents, with the number
%    of layers given by the first parameter (default 2).
% \item[]\hskip-\leftmargin
% \DescribeMacro{\dlbox}
%    |\dlbox[|\textit{layers}|]{|\textit{text}|}| works like |\lbox|,
%    but the boxes are drawn with \dlbox[2]{\dbox{dashed lines}}.
% \end{itemize}
%
% The following style parameters are available:
%
% \begin{itemize}
% \item[]\hskip-\leftmargin
% \DescribeMacro{\dashlength}
%   |\dashlength| gives the length of a dash plus the following
%   gap. The default is 6pt.
% \item[]\hskip-\leftmargin
% \DescribeMacro{\dashdash}
%   |\dashdash| gives the length of a dash. The default is 3pt.
% \item[]\hskip-\leftmargin
% \DescribeMacro{\layersize}
%   |\layersize| gives the protrusion of each layer below the previous
%   one. The default is |\dashdash|.
% \end{itemize}
%
% The following standard parameters are also observed:
%
% \begin{itemize}
% \item[]\hskip-\leftmargin
% \DescribeMacro{\fboxrule}
%   |\fboxrule| gives the width of the dashes.
% \item[]\hskip-\leftmargin
% \DescribeMacro{\fboxsep}
%   |\fboxsep| gives the separation between the box and text inside it.
% \end{itemize}
% \StopEventually{}
%
%
% \section{Implementation}
%
% \subsection{Preliminaries}
%
% Make sure we've got what we need, and announce the package.
%
%    \begin{macrocode}
%<*package>
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{dashbox}
    [2001/12/11 v1.14 Dashed and layered boxes]
\RequirePackage{calc}
\RequirePackage{ifthen}
%    \end{macrocode}
%
% \subsection{Style parameters}
%
% Define and give the default values of the style parameters.
%
% \begin{macro}{\dashlength}
%    \begin{macrocode}
\newlength{\dashlength} \setlength{\dashlength}{6pt}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\dashdash}
%    \begin{macrocode}
\newlength{\dashdash} \setlength{\dashdash}{3pt}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\layersize}
%    \begin{macrocode}
\newlength{\layersize} \setlength{\layersize}{\dashdash}
%    \end{macrocode}
% \end{macro}
%
% \subsection{Dashes}
%
% We need two new commands for drawing horizontal and vertical dashes.
%
% \begin{macro}{\hd@shrule}
% |\hd@shrule| takes one argument, the rule's width. The thickness of
% the dash is given by |\fboxrule|.
%
%    \begin{macrocode}
\newcommand{\hd@shrule}[1]{%
    \hbox to #1%
        {\vrule height \fboxrule width \dashdash%
        \cleaders\hbox to \dashlength%
            {\hfill\rule{\dashdash}{\fboxrule}\hfill}\hfill%
        \ifthenelse{\lengthtest{#1 > 2\dashdash}}%
            {\vrule height \fboxrule width \dashdash}{}%
        }}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\vd@shrule}
% |\vd@shrule| takes one argument, the rule's height. The thickness of
% the dash is given by |\fboxrule|.
%
%    \begin{macrocode}
\newcommand{\vd@shrule}[1]{%
    \vbox to #1%
        {\hrule height \dashdash width \fboxrule%
        \cleaders\vbox to \dashlength%
            {\vfill\rule{\fboxrule}{\dashdash}\vfill}\vfill%
        \ifthenelse{\lengthtest{#1 > 2\dashdash}}%
            {\hrule height \dashdash width \fboxrule}{}%
        }}
%    \end{macrocode}
% \end{macro}
%
% \subsection{Dashed boxes}
%
% A private save box and some lengths are defined. |\d@ashedsavebox|
% is a box to hold the contents of a dashed box. |\d@shedboxwidth| is
% the box's width, and |\d@shedboxtotalheight| is the height plus the
% depth.
%
% \begin{macro}{\d@shedsavebox}
%    \begin{macrocode}
\newsavebox{\d@shedsavebox}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\d@shedboxwidth}
%    \begin{macrocode}
\newlength{\d@shedboxwidth}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\d@shedboxtotalheight}
%    \begin{macrocode}
\newlength{\d@shedboxtotalheight}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\m@kedashbox}
% |\m@kedashbox| is where the work is actually done. It puts the box
% together piece by piece. It requires |\d@shedboxwidth| to be set by
% its caller.
%
%    \begin{macrocode}
\newcommand{\m@kedashbox}{%
%    \end{macrocode}
%
% The height plus depth of the box is calculated.
%
%    \begin{macrocode}
    \setlength{\d@shedboxtotalheight}%
        {\dp\d@shedsavebox+\ht\d@shedsavebox+\fboxsep*2+\fboxrule*2}%
%    \end{macrocode}
%
% The box is raised an appropriate amount, and drawn in a |b|-aligned
% parbox.
%
%    \begin{macrocode}
    \raisebox{-\fboxrule-\fboxsep-\dp\d@shedsavebox}{%
    \parbox[b]{\d@shedboxwidth}{%
%    \end{macrocode}
%
% Inter-line and inter-paragraph skip are disabled.
%
%    \begin{macrocode}
        \offinterlineskip%
        \parskip=0pt%
%    \end{macrocode}
%
% The top line is drawn; the kern makes the left and right sides line
% up properly.
%
%    \begin{macrocode}
        \hd@shrule{\d@shedboxwidth}%
        \kern-\fboxrule%
        \par%
%    \end{macrocode}
%
% The left-hand side is now drawn, in a parbox of the correct width.
%
%    \begin{macrocode}
        \parbox{\fboxrule}{\vd@shrule{\d@shedboxtotalheight}}%
%    \end{macrocode}
%
% Now the inside of the box is set in a parbox, with |\fboxsep| space
% top and bottom. The kerns add |\fboxsep| space at the left and
% right. 
%
%    \begin{macrocode}
        \kern\fboxsep%
        \parbox{\wd\d@shedsavebox}%
            {\vspace{\fboxsep}\usebox{\d@shedsavebox}\vspace{\fboxsep}}%
        \kern\fboxsep%
%    \end{macrocode}
%
% The right-hand side is drawn just like the left-hand side, and the
% bottom just like the top.
%
%    \begin{macrocode}
        \parbox{\fboxrule}{\vd@shrule{\d@shedboxtotalheight}}%
        \par%
        \kern-\fboxrule%
        \hd@shrule{\d@shedboxwidth}}%
    }}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\dbox}
% |\dbox| is just a wrapper around |\m@kedashbox| which saves its
% argument and then calculates the width according to that of its
% argument. 
%
%    \begin{macrocode}
\newcommand{\dbox}[1]{%
    \sbox{\d@shedsavebox}{#1}%
    \setlength{\d@shedboxwidth}{\wd\d@shedsavebox+\fboxsep*2+\fboxrule*2}%
    \m@kedashbox}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\dashbox}
% The code for |\dashbox| is partly taken from that for |\framebox|.
% Depending on whether any optional arguments are given, it either
% simply calls |\dbox|, or sets the width to that given and does the
% typesetting via |\savebox| and |\m@kedashbox|.
%
%    \begin{macrocode}
\def\dashbox{\@ifnextchar[\@dashbox\dbox}
\def\@dashbox[#1]{\@ifnextchar[{\@idashbox[#1]}{\@idashbox[#1][c]}}
\long\def\@idashbox[#1][#2]#3%
    {\setlength{\d@shedboxwidth}{#1}%
    \savebox{\d@shedsavebox}[#1-\fboxsep*2-\fboxrule*2][#2]{#3}%
    \m@kedashbox}
%    \end{macrocode}
% \end{macro}
%
% \subsection{Layers}
%
% Another series of private variables are required for layers:
% |\l@yersavebox| holds the text to be set in a layer,
% |\l@yerwidth| holds the total width of the layer,
% |\l@yerboxwidth| the width of the layer box,
% |\l@yertotalheight| the height plus depth of the layer.
% |\l@yerlineheight| the lift of the top right-hand line, and
% |\l@yervoffset| the lift of the layer below the baseline.
%
% \begin{macro}{\l@yersavebox}
%    \begin{macrocode}
\newsavebox{\l@yersavebox}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\l@yerwidth}
%    \begin{macrocode}
\newlength{\l@yerwidth}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\l@yerboxwidth}
%    \begin{macrocode}
\newlength{\l@yerboxwidth}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\l@yertotalheight}
%    \begin{macrocode}
\newlength{\l@yertotalheight}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\l@yerlineheight}
%    \begin{macrocode}
\newlength{\l@yerlineheight}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\l@yervoffset}
%    \begin{macrocode}
\newlength{\l@yervoffset}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\m@kelayer}
% |\m@kelayer| makes a solid layer.
%
%    \begin{macrocode}
\newcommand{\m@kelayer}[1]{%
%    \end{macrocode}
%
% The various lengths are calculated. The argument gives the number of
% the layer, i.e.\ how far down it should be offset from its contents
% as a multiple of |\layersize|.
%
%    \begin{macrocode}
    \setlength{\l@yertotalheight}%
        {\dp\l@yersavebox+\ht\l@yersavebox+\layersize-#1\layersize}%
    \setlength{\l@yerlineheight}%
        {\ht\l@yersavebox-#1\layersize-\fboxrule}%
    \setlength{\l@yervoffset}%
        {-\layersize-\dp\l@yersavebox}%
    \setlength{\l@yerboxwidth}%
        {\wd\l@yersavebox+\layersize-#1\layersize}%
%    \end{macrocode}
%
% The layer is set in a parbox of width |\l@yerwidth|.
%
%    \begin{macrocode}
    \parbox{\l@yerwidth}{%
%    \end{macrocode}
%
% Inter-line and inter-paragraph spacing are turned off.
%
%    \begin{macrocode}
        \offinterlineskip%
        \parskip=0pt%
%    \end{macrocode}
%
% The contents of the layer is set first.
%
%    \begin{macrocode}
        \usebox{\l@yersavebox}%
%    \end{macrocode}
%
% The extra ``corner'' is added on to the bottom right.
%
%    \begin{macrocode}
        \rule[\l@yerlineheight]{\layersize}{\fboxrule}%
        \kern-\fboxrule%
        \rule[\l@yervoffset]{\fboxrule}{\l@yertotalheight}%
        \kern-\wd\l@yersavebox\kern-\layersize\kern#1\layersize
        \rule[\l@yervoffset]{\fboxrule}{\layersize}%
        \kern-\fboxrule
        \rule[\l@yervoffset]{\l@yerboxwidth}{\fboxrule}%
    }}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\l@yer}
% |\l@yer| draws a layer. The first argument gives the number of the
% layer, and the second its contents.
%
%    \begin{macrocode}
\newcommand{\l@yer}[2]{%
    \sbox{\l@yersavebox}{#2}%
    \setlength{\l@yerwidth}{\wd\l@yersavebox+\layersize}%
    \m@kelayer{#1}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\m@kedashlayer}
% |\m@kedashlayer| makes a dashed layer. The code is the same as for
% |\m@kelayer| except for the dash commands.
%
%    \begin{macrocode}
\newcommand{\m@kedashlayer}[1]{%
    \setlength{\l@yertotalheight}%
        {\dp\l@yersavebox+\ht\l@yersavebox+\layersize-#1\layersize}%
    \setlength{\l@yerlineheight}{\ht\l@yersavebox-#1\layersize-\fboxrule}%
    \setlength{\l@yervoffset}{-\layersize-\dp\l@yersavebox}%
    \setlength{\l@yerboxwidth}%
        {\wd\l@yersavebox+\layersize-#1\layersize}%
    \parbox{\l@yerwidth}{%
        \offinterlineskip%
        \parskip=0pt%
        \usebox{\l@yersavebox}%
        \raisebox{\l@yerlineheight}{\hd@shrule{\layersize}}%
        \kern-\fboxrule%
        \raisebox{\l@yervoffset}%
            {\parbox[b]{\fboxrule}{\vd@shrule{\l@yertotalheight}}}%
        \kern-\wd\l@yersavebox\kern-\layersize\kern#1\layersize
        \raisebox{\l@yervoffset}%
            {\parbox[b]{\fboxrule}{\vd@shrule{\layersize}}}%
        \kern-\fboxrule
        \raisebox{\l@yervoffset}%
            {\hd@shrule{\l@yerboxwidth}}%
    }}
%    \end{macrocoode}
% \end{macro}
%
% \begin{macro}{\dl@yer}
% |\dl@yer| draws a dashed layer, just like |\l@yer| draws a solid
% one.
%
%    \begin{macrocode}
\newcommand{\dl@yer}[2]
    {\sbox{\l@yersavebox}{#2}%
    \setlength{\l@yerwidth}{\wd\l@yersavebox+\layersize}%
    \m@kedashlayer{#1}}
%    \end{macrocode}
% \end{macro}
%
% \subsection{Stacks}
%
% Finally, the commands for drawing a stack of layers.
%
% |l@yercount| counts the number of layers drawn by the stack drawing
% \begin{macro}{l@yercount}
%    \begin{macrocode}
\newcounter{l@yercount}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\l@yers}
% |\l@yers| draws a stack of layers; it is parametrized on the command
% used to draw a layer (third argument). The first argument is number
% of layers, and the second is the text to set. The layers are drawn
% in in a loop, using |\l@yersavebox| as an accumulator, and the
% result is typeset.
%
%    \begin{macrocode}
\newcommand{\l@yers}[3]
    {\setcounter{l@yercount}{1}%
    \sbox{\l@yersavebox}{#2}%
    \whiledo{\not\(\value{l@yercount} > #1\)}%
        {\sbox{\l@yersavebox}%
            {#3{\value{l@yercount}}{\usebox{\l@yersavebox}}}%
        \stepcounter{l@yercount}}%
    \usebox{\l@yersavebox}%
    }
%    \end{macrocode}
% \end{macro}
%
% |\lbox| and |\dlbox| are just wrappers for |\l@yers|. They both
% default to drawing two layers.
%
% \begin{macro}{\lbox}
%    \begin{macrocode}
\newcommand{\lbox}[2][2]{%
    \l@yers{#1}{#2}{\l@yer}}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\dlbox}
%    \begin{macrocode}
\newcommand{\dlbox}[2][2]{%
    \l@yers{#1}{#2}{\dl@yer}}
%</package>
%    \end{macrocode}
% \end{macro}
%
% \Finale
\endinput