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1%D \module
2%D   [       file=page-inf,   % moved from page-ini
3%D        version=2011.12.07, % 2000.10.20,
4%D          title=\CONTEXT\ Page Macros,
5%D       subtitle=Tracing Info,
6%D         author=Hans Hagen,
7%D           date=\currentdate,
8%D      copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
9%C
10%C This module is part of the \CONTEXT\ macro||package and is
11%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
12%C details.
13
14\writestatus{loading}{ConTeXt Page Macros / Tracing Info}
15
16% This needs a real cleanup .. will be a more detailed list.
17
18\unprotect
19
20\installcorenamespace{layoutinfo}
21
22\newtoks\everyresetversion
23\newtoks\everysetupversion
24
25\let\currentversioninfo\empty
26\let\currentversiontext\empty
27
28\unexpanded\def\setupversion
29  {\dosingleargument\page_info_setup}
30
31\let\version\setupversion
32
33\let\page_info_add_to_box\gobbleoneargument
34
35\def\page_info_setup[#1]%
36  {\the\everyresetversion
37   \doifelseassignment{#1}%
38     {\getdummyparameters[\c!alternative=,\c!text=,#1]%
39      \edef\currentversioninfo{\dummyparameter\c!alternative}%
40      \edef\currentversiontext{\dummyparameter\c!text}}%
41     {\edef\currentversioninfo{#1}%
42      \let \currentversiontext\empty}%
43   \ifcsname\??layoutinfo\currentversioninfo\endcsname
44     \let\page_info_add_to_box\page_info_add_to_box_indeed
45   \else
46     \let\currentversioninfo\empty
47     \let\page_info_add_to_box\gobbleoneargument
48   \fi
49   \the\everysetupversion}
50
51\unexpanded\def\page_info_place_info % at the bottom of the page
52  {\begincsname\??layoutinfo\currentversioninfo\endcsname}
53
54\unexpanded\def\installversioninfo#1#2%
55  {\setvalue{\??layoutinfo#1}{#2}}
56
57\unexpanded\def\includeversioninfo#1%
58  {\begincsname\??layoutinfo#1\endcsname}
59
60\installversioninfo\v!final
61  {\let\currentversioninfo\empty
62   \let\page_info_add_to_box\gobbleoneargument}
63
64\installversioninfo\v!concept
65  {\vskip6\points
66   \hbox to \makeupwidth
67     {\infofont
68      \rlap{\v!concept:\space\currentdate}%
69      \hss
70      \currentversiontext
71      \hss
72      \llap{\page_adapts_status_info}}}
73
74\installversioninfo\v!file
75  {\vskip6\points
76   \hbox to \makeupwidth
77     {\infofont
78      \getmessage\m!system{27}:\space\currentdate\quad
79      \donefalse
80      \doif\currentproject\currentproduct{\doif\currentproduct\currentcomponent\donetrue}%
81      \ifdone
82        \donefalse
83      \else
84        \ifx\currentproject  \empty \else \space\v!project  :\space\currentproject  \space \donetrue \fi
85        \ifx\currentproduct  \empty \else \space\v!product  :\space\currentproduct  \space \donetrue \fi
86        \ifx\currentcomponent\empty \else \space\v!component:\space\currentcomponent\space \donetrue \fi
87      \fi
88        \ifdone                     \else \space\v!file     :\space\jobname         \space           \fi
89      \hss
90      \currentversiontext
91      \quad
92      \page_adapts_status_info}}
93
94\installversioninfo\v!temporary
95  {\includeversioninfo\v!file}
96
97\appendtoks
98    \overfullrule\zeropoint
99\to \everyresetversion
100
101\appendtoks
102    \ifx\currentversioninfo\v!temporary
103        \overfullrule5\points
104    \fi
105\to \everysetupversion
106
107\newbox\b_page_versions
108
109\def\page_info_add_to_box_indeed#1%
110  {\scratchdimen\wd#1%
111   \setbox\b_page_versions\vpack to \ht#1%
112     {\vfill
113      \settexthoffset
114      \hsize\dimexpr\scratchdimen-2\texthoffset\relax
115      \hkern\texthoffset % brrrr
116      \vbox to \zeropoint{\vss\page_info_place_info}%
117      \vkern\bodyfontsize}%
118   \dp\b_page_versions\zeropoint
119   \wd\b_page_versions\scratchdimen
120   \setbox#1\hpack{\box#1\hkern-\scratchdimen\box\b_page_versions}}
121
122\setupversion % resets
123  [\v!final]
124
125\let\page_info_add_to_box\gobbleoneargument
126
127\protect \endinput
128