File:
[LON-CAPA] /
loncom /
interface /
lonprintout.pm
Revision
1.515:
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Tue Feb 26 10:46:14 2008 UTC (16 years, 8 months ago) by
foxr
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MAIN
CVS tags:
HEAD
BZ5631:
1. Factored out calls to &Apache::lonnet::ssi into
local ssi_with_retries
2. ssi_with_retries detects http errors and retries
as many times as directed by the caller.
3. ssi_with_retries will report errors that
cannot be recovered within retries via a set of
$ssi_ module global variables
4. When output_data is rendering it's final page,
if $ssi_error is set (indicating that at least
one rendering failed due to ssi retry exhaustion,
An error message is delivered to the user rather than
just blindly printing papers that may have missing resources.
1: # The LearningOnline Network
2: # Printout
3: #
4: # $Id: lonprintout.pm,v 1.515 2008/02/26 10:46:14 foxr Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: # http://www.lon-capa.org/
26: #
27: #
28: package Apache::lonprintout;
29:
30: use strict;
31: use Apache::Constants qw(:common :http);
32: use Apache::lonxml;
33: use Apache::lonnet;
34: use Apache::loncommon;
35: use Apache::inputtags;
36: use Apache::grades;
37: use Apache::edit;
38: use Apache::File();
39: use Apache::lonnavmaps;
40: use Apache::admannotations;
41: use HTTP::Response;
42:
43: use LONCAPA::map();
44: use POSIX qw(strftime);
45: use Apache::lonlocal;
46: use Carp;
47: use LONCAPA;
48:
49: my %perm;
50: my %parmhash;
51: my $resources_printed;
52:
53: # Global variables that describe errors in ssi calls detected by ssi_with_retries.
54: #
55:
56: my $ssi_error; # True if there was an ssi error.
57: my $ssi_last_error_resource; # The resource URI that could not be fetched.
58: my $ssi_last_error; # The error text from the server. (e.g. 500 Server timed out).
59:
60: #
61: # Our ssi max retry count.
62: #
63:
64: my $ssi_retry_count = 5; # Some arbitrary value.
65:
66:
67:
68: # Fetch the contents of a resource, uninterpreted.
69: # This is used here to fetch a latex file to be included
70: # verbatim into the printout<
71: # NOTE: Ask Guy if there is a lonnet function similar to this?
72: #
73: # Parameters:
74: # URL of the file
75: #
76: sub fetch_raw_resource {
77: my ($url) = @_;
78:
79: my $filename = &Apache::lonnet::filelocation("", $url);
80: my $contents = &Apache::lonnet::getfile($filename);
81:
82: if ($contents == -1) {
83: return "File open failed for $filename"; # This will bomb the print.
84: }
85: return $contents;
86:
87:
88: }
89:
90: # Fetch the annotations associated with a URL and
91: # put a centered 'annotations:' title.
92: # This is all suppressed if the annotations are empty.
93: #
94: sub annotate {
95: my ($symb) = @_;
96:
97: my $annotation_text = &Apache::admannotations::get_annotation($symb, 1);
98:
99:
100: my $result = "";
101:
102: if (length($annotation_text) > 0) {
103: $result .= '\\hspace*{\\fill} \\\\[\\baselineskip] \textbf{Annotations:} \\\\ ';
104: $result .= "\n";
105: $result .= &Apache::lonxml::latex_special_symbols($annotation_text,""); # Escape latex.
106: $result .= "\n\n";
107: }
108: return $result;
109: }
110:
111:
112: #
113: # ssi_with_retries - Does the server side include of a resource.
114: # if the ssi call returns an error we'll retry it up to
115: # the number of times requested by the caller.
116: # If we still have a proble, no text is appended to the
117: # output and we set some global variables.
118: # to indicate to the caller an SSI error occured.
119: # All of this is supposed to deal with the issues described
120: # in LonCAPA BZ 5631 see:
121: # http://bugs.lon-capa.org/show_bug.cgi?id=5631
122: # by informing the user that this happened.
123: #
124: # Parameters:
125: # resource - The resource to include. This is passed directly, without
126: # interpretation to lonnet::ssi.
127: # form - The form hash parameters that guide the interpretation of the resource
128: #
129: # retries - Number of retries allowed before giving up completely.
130: # Returns:
131: # On success, returns the rendered resource identified by the resource parameter.
132: # Side Effects:
133: # The following global variables can be set:
134: # ssi_error - If an unrecoverable error occured this becomes true.
135: # It is up to the caller to initialize this to false
136: # if desired.
137: # ssi_last_error_resource - If an unrecoverable error occured, this is the value
138: # of the resource that could not be rendered by the ssi
139: # call.
140: # ssi_last_error - The error string fetched from the ssi response
141: # in the event of an error.
142: #
143: sub ssi_with_retries {
144: my ($resource, $retries, %form) = @_;
145:
146:
147: my $ok = 0; # True if we got a good response.
148: my $content;
149: my $response;
150:
151: # Try to get the ssi done. within the retries count:
152:
153: do {
154: ($content, $response) = &Apache::lonnet::ssi($resource, %form);
155: $ok = $response->is_success;
156: $retries--;
157: } while (!$ok && ($retries > 0));
158:
159: # Two cases: ok is true we have valid data, if not, retries have been exhausted
160: # if ok is true, $response->content is what we want to return.. otherwise
161: # set the error information:
162:
163: if ($ok) {
164: return $content;
165: } else {
166: $ssi_error = 1;
167: $ssi_last_error_resource = $resource;
168: $ssi_last_error = $response->code." ". $response->message;
169: return ''; # Nothing we can add to the printout that makes sense.
170: }
171: }
172:
173: #
174: # printf_style_subst item format_string repl
175: #
176: # Does printf style substitution for a format string that
177: # can have %[n]item in it.. wherever, %[n]item occurs,
178: # rep is substituted in format_string. Note that
179: # [n] is an optional integer length. If provided,
180: # repl is truncated to at most [n] characters prior to
181: # substitution.
182: #
183: sub printf_style_subst {
184: my ($item, $format_string, $repl) = @_;
185: my $result = "";
186: while ($format_string =~ /(%)(\d*)\Q$item\E/g ) {
187: my $fmt = $1;
188: my $size = $2;
189: my $subst = $repl;
190: if ($size ne "") {
191: $subst = substr($subst, 0, $size);
192:
193: # Here's a nice edge case.. supose the end of the
194: # substring is a \. In that case may have just
195: # chopped off a TeX escape... in that case, we append
196: # " " for the trailing character, and let the field
197: # spill over a bit (sigh).
198: # We don't just chop off the last character in order to deal
199: # with one last pathology, and that would be if substr had
200: # trimmed us to e.g. \\\
201:
202:
203: if ($subst =~ /\\$/) {
204: $subst .= " ";
205: }
206: }
207: my $item_pos = pos($format_string);
208: $result .= substr($format_string, 0, $item_pos - length($size) -2) . $subst;
209: $format_string = substr($format_string, pos($format_string));
210: }
211:
212: # Put the residual format string into the result:
213:
214: $result .= $format_string;
215:
216: return $result;
217: }
218:
219:
220: # Format a header according to a format.
221: #
222:
223: # Substitutions:
224: # %a - Assignment name.
225: # %c - Course name.
226: # %n - Student name.
227: #
228: sub format_page_header {
229: my ($width, $format, $assignment, $course, $student) = @_;
230:
231: $width = &recalcto_mm($width); # Get width in mm.
232: # Default format?
233:
234: if ($format eq '') {
235: # For the default format, we may need to truncate
236: # elements.. To do this we need to get the page width.
237: # we assume that each character is about 2mm in width.
238: # (correct for the header text size??). We ignore
239: # any formatting (e.g. boldfacing in this).
240: #
241: # - Allow the student/course to be one line.
242: # but only truncate the course.
243: # - Allow the assignment to be 2 lines (wrapped).
244: #
245: my $chars_per_line = $width/2; # Character/textline.
246:
247:
248: my $firstline = "$student $course";
249: if (length($firstline) > $chars_per_line) {
250: my $lastchar = $chars_per_line - length($student) - 1;
251: if ($lastchar > 0) {
252: $course = substr($course, 0, $lastchar);
253: } else { # Nothing left of course:
254: $course = '';
255: }
256: }
257: if (length($assignment) > $chars_per_line) {
258: $assignment = substr($assignment, 0, $chars_per_line);
259: }
260:
261: $format = "\\textbf{$student} $course \\hfill \\thepage \\\\ \\textit{$assignment}";
262:
263: } else {
264: # An open question is how to handle long user formatted page headers...
265: # A possible future is to support e.g. %na so that the user can control
266: # the truncation of the elements that can appear in the header.
267: #
268: $format = &printf_style_subst("a", $format, $assignment);
269: $format = &printf_style_subst("c", $format, $course);
270: $format = &printf_style_subst("n", $format, $student);
271:
272: # If the user put %'s in the format string, they must be escaped
273: # to \% else LaTeX will think they are comments and terminate
274: # the line.. which is bad!!!
275:
276:
277: }
278:
279:
280: return $format;
281:
282: }
283:
284: #
285: # Convert a numeric code to letters
286: #
287: sub num_to_letters {
288: my ($num) = @_;
289: my @nums= split('',$num);
290: my @num_to_let=('A'..'Z');
291: my $word;
292: foreach my $digit (@nums) { $word.=$num_to_let[$digit]; }
293: return $word;
294: }
295: # Convert a letter code to numeric.
296: #
297: sub letters_to_num {
298: my ($letters) = @_;
299: my @letters = split('', uc($letters));
300: my %substitution;
301: my $digit = 0;
302: foreach my $letter ('A'..'J') {
303: $substitution{$letter} = $digit;
304: $digit++;
305: }
306: # The substitution is done as below to preserve leading
307: # zeroes which are needed to keep the code size exact
308: #
309: my $result ="";
310: foreach my $letter (@letters) {
311: $result.=$substitution{$letter};
312: }
313: return $result;
314: }
315:
316: # Determine if a code is a valid numeric code. Valid
317: # numeric codes must be comprised entirely of digits and
318: # have a correct number of digits.
319: #
320: # Parameters:
321: # value - proposed code value.
322: # num_digits - Number of digits required.
323: #
324: sub is_valid_numeric_code {
325: my ($value, $num_digits) = @_;
326: # Remove leading/trailing whitespace;
327: $value =~ s/^\s*//g;
328: $value =~ s/\s*$//g;
329:
330: # All digits?
331: if ($value !~ /^[0-9]+$/) {
332: return "Numeric code $value has invalid characters - must only be digits";
333: }
334: if (length($value) != $num_digits) {
335: return "Numeric code $value incorrect number of digits (correct = $num_digits)";
336: }
337: return undef;
338: }
339: # Determines if a code is a valid alhpa code. Alpha codes
340: # are ciphers that map [A-J,a-j] -> 0..9 0..9.
341: # They also have a correct digit count.
342: # Parameters:
343: # value - Proposed code value.
344: # num_letters - correct number of letters.
345: # Note:
346: # leading and trailing whitespace are ignored.
347: #
348: sub is_valid_alpha_code {
349: my ($value, $num_letters) = @_;
350:
351: # strip leading and trailing spaces.
352:
353: $value =~ s/^\s*//g;
354: $value =~ s/\s*$//g;
355:
356: # All alphas in the right range?
357: if ($value !~ /^[A-J,a-j]+$/) {
358: return "Invalid letter code $value must only contain A-J";
359: }
360: if (length($value) != $num_letters) {
361: return "Letter code $value has incorrect number of letters (correct = $num_letters)";
362: }
363: return undef;
364: }
365:
366: # Determine if a code entered by the user in a helper is valid.
367: # valid depends on the code type and the type of code selected.
368: # The type of code selected can either be numeric or
369: # Alphabetic. If alphabetic, the code, in fact is a simple
370: # substitution cipher for the actual numeric code: 0->A, 1->B ...
371: # We'll be nice and be case insensitive for alpha codes.
372: # Parameters:
373: # code_value - the value of the code the user typed in.
374: # code_option - The code type selected from the set in the scantron format
375: # table.
376: # Returns:
377: # undef - The code is valid.
378: # other - An error message indicating what's wrong.
379: #
380: sub is_code_valid {
381: my ($code_value, $code_option) = @_;
382: my ($code_type, $code_length) = ('letter', 6); # defaults.
383: open(FG, $Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
384: foreach my $line (<FG>) {
385: my ($name, $type, $length) = (split(/:/, $line))[0,2,4];
386: if($name eq $code_option) {
387: $code_length = $length;
388: if($type eq 'number') {
389: $code_type = 'number';
390: }
391: }
392: }
393: my $valid;
394: if ($code_type eq 'number') {
395: return &is_valid_numeric_code($code_value, $code_length);
396: } else {
397: return &is_valid_alpha_code($code_value, $code_length);
398: }
399:
400: }
401:
402: # Compare two students by name. The students are in the form
403: # returned by the helper:
404: # user:domain:section:last, first:status
405: # This is a helper function for the perl sort built-in therefore:
406: # Implicit Inputs:
407: # $a - The first element to compare (global)
408: # $b - The second element to compare (global)
409: # Returns:
410: # -1 - $a < $b
411: # 0 - $a == $b
412: # +1 - $a > $b
413: # Note that the initial comparison is done on the last names with the
414: # first names only used to break the tie.
415: #
416: #
417: sub compare_names {
418: # First split the names up into the primary fields.
419:
420: my ($u1, $d1, $s1, $n1, $stat1) = split(/:/, $a);
421: my ($u2, $d2, $s2, $n2, $stat2) = split(/:/, $b);
422:
423: # Now split the last name and first name of each n:
424: #
425:
426: my ($l1,$f1) = split(/,/, $n1);
427: my ($l2,$f2) = split(/,/, $n2);
428:
429: # We don't bother to remove the leading/trailing whitespace from the
430: # firstname, unless the last names compare identical.
431:
432: if($l1 lt $l2) {
433: return -1;
434: }
435: if($l1 gt $l2) {
436: return 1;
437: }
438:
439: # Break the tie on the first name, but there are leading (possibly trailing
440: # whitespaces to get rid of first
441: #
442: $f1 =~ s/^\s+//; # Remove leading...
443: $f1 =~ s/\s+$//; # Trailing spaces from first 1...
444:
445: $f2 =~ s/^\s+//;
446: $f2 =~ s/\s+$//; # And the same for first 2...
447:
448: if($f1 lt $f2) {
449: return -1;
450: }
451: if($f1 gt $f2) {
452: return 1;
453: }
454:
455: # Must be the same name.
456:
457: return 0;
458: }
459:
460: sub latex_header_footer_remove {
461: my $text = shift;
462: $text =~ s/\\end{document}//;
463: $text =~ s/\\documentclass([^&]*)\\begin{document}//;
464: return $text;
465: }
466: #
467: # If necessary, encapsulate text inside
468: # a minipage env.
469: # necessity is determined by the problem_split param.
470: #
471: sub encapsulate_minipage {
472: my ($text) = @_;
473: if (!($env{'form.problem.split'} =~ /yes/i)) {
474: $text = '\begin{minipage}{\textwidth}'.$text.'\end{minipage}';
475: }
476: return $text;
477: }
478: #
479: # The NUMBER_TO_PRINT and SPLIT_PDFS
480: # variables interact, this sub looks at these two parameters
481: # and comes up with a final value for NUMBER_TO_PRINT which can be:
482: # all - if SPLIT_PDFS eq 'all'.
483: # 1 - if SPLIT_PDFS eq 'oneper'
484: # section - if SPLIT_PDFS eq 'sections'
485: # <unchanged> - if SPLIT_PDFS eq 'usenumber'
486: #
487: sub adjust_number_to_print {
488: my $helper = shift;
489:
490: my $split_pdf = $helper->{'VARS'}->{'SPLIT_PDFS'};
491:
492: if ($split_pdf eq 'all') {
493: $helper->{'VARS'}->{'NUMBER_TO_PRINT'} = 'all';
494: } elsif ($split_pdf eq 'oneper') {
495: $helper->{'VARS'}->{'NUMBER_TO_PRINT'} = 1;
496: } elsif ($split_pdf eq 'sections') {
497: $helper->{'VARS'}->{'NUMBER_TO_PRINT'} = 'section';
498: } elsif ($split_pdf eq 'usenumber') {
499: # Unmodified.
500: } else {
501: # Error!!!!
502:
503: croak "bad SPLIT_PDFS: $split_pdf in lonprintout::adjust_number_to_print";
504: }
505: }
506:
507: sub character_chart {
508: my $result = shift;
509: $result =~ s/&\#0?0?(7|9);//g;
510: $result =~ s/&\#0?(10|13);//g;
511: $result =~ s/&\#0?32;/ /g;
512: $result =~ s/&\#0?33;/!/g;
513: $result =~ s/&(\#0?34|quot);/\"/g;
514: $result =~ s/&\#0?35;/\\\#/g;
515: $result =~ s/&\#0?36;/\\\$/g;
516: $result =~ s/&\#0?37;/\\%/g;
517: $result =~ s/&(\#0?38|amp);/\\&/g;
518: $result =~ s/&\#(0?39|146);/\'/g;
519: $result =~ s/&\#0?40;/(/g;
520: $result =~ s/&\#0?41;/)/g;
521: $result =~ s/&\#0?42;/\*/g;
522: $result =~ s/&\#0?43;/\+/g;
523: $result =~ s/&\#(0?44|130);/,/g;
524: $result =~ s/&\#0?45;/-/g;
525: $result =~ s/&\#0?46;/\./g;
526: $result =~ s/&\#0?47;/\//g;
527: $result =~ s/&\#0?48;/0/g;
528: $result =~ s/&\#0?49;/1/g;
529: $result =~ s/&\#0?50;/2/g;
530: $result =~ s/&\#0?51;/3/g;
531: $result =~ s/&\#0?52;/4/g;
532: $result =~ s/&\#0?53;/5/g;
533: $result =~ s/&\#0?54;/6/g;
534: $result =~ s/&\#0?55;/7/g;
535: $result =~ s/&\#0?56;/8/g;
536: $result =~ s/&\#0?57;/9/g;
537: $result =~ s/&\#0?58;/:/g;
538: $result =~ s/&\#0?59;/;/g;
539: $result =~ s/&(\#0?60|lt|\#139);/\$<\$/g;
540: $result =~ s/&\#0?61;/\\ensuremath\{=\}/g;
541: $result =~ s/&(\#0?62|gt|\#155);/\\ensuremath\{>\}/g;
542: $result =~ s/&\#0?63;/\?/g;
543: $result =~ s/&\#0?65;/A/g;
544: $result =~ s/&\#0?66;/B/g;
545: $result =~ s/&\#0?67;/C/g;
546: $result =~ s/&\#0?68;/D/g;
547: $result =~ s/&\#0?69;/E/g;
548: $result =~ s/&\#0?70;/F/g;
549: $result =~ s/&\#0?71;/G/g;
550: $result =~ s/&\#0?72;/H/g;
551: $result =~ s/&\#0?73;/I/g;
552: $result =~ s/&\#0?74;/J/g;
553: $result =~ s/&\#0?75;/K/g;
554: $result =~ s/&\#0?76;/L/g;
555: $result =~ s/&\#0?77;/M/g;
556: $result =~ s/&\#0?78;/N/g;
557: $result =~ s/&\#0?79;/O/g;
558: $result =~ s/&\#0?80;/P/g;
559: $result =~ s/&\#0?81;/Q/g;
560: $result =~ s/&\#0?82;/R/g;
561: $result =~ s/&\#0?83;/S/g;
562: $result =~ s/&\#0?84;/T/g;
563: $result =~ s/&\#0?85;/U/g;
564: $result =~ s/&\#0?86;/V/g;
565: $result =~ s/&\#0?87;/W/g;
566: $result =~ s/&\#0?88;/X/g;
567: $result =~ s/&\#0?89;/Y/g;
568: $result =~ s/&\#0?90;/Z/g;
569: $result =~ s/&\#0?91;/[/g;
570: $result =~ s/&\#0?92;/\\ensuremath\{\\setminus\}/g;
571: $result =~ s/&\#0?93;/]/g;
572: $result =~ s/&\#(0?94|136);/\\ensuremath\{\\wedge\}/g;
573: $result =~ s/&\#(0?95|138|154);/\\underline{\\makebox[2mm]{\\strut}}/g;
574: $result =~ s/&\#(0?96|145);/\`/g;
575: $result =~ s/&\#0?97;/a/g;
576: $result =~ s/&\#0?98;/b/g;
577: $result =~ s/&\#0?99;/c/g;
578: $result =~ s/&\#100;/d/g;
579: $result =~ s/&\#101;/e/g;
580: $result =~ s/&\#102;/f/g;
581: $result =~ s/&\#103;/g/g;
582: $result =~ s/&\#104;/h/g;
583: $result =~ s/&\#105;/i/g;
584: $result =~ s/&\#106;/j/g;
585: $result =~ s/&\#107;/k/g;
586: $result =~ s/&\#108;/l/g;
587: $result =~ s/&\#109;/m/g;
588: $result =~ s/&\#110;/n/g;
589: $result =~ s/&\#111;/o/g;
590: $result =~ s/&\#112;/p/g;
591: $result =~ s/&\#113;/q/g;
592: $result =~ s/&\#114;/r/g;
593: $result =~ s/&\#115;/s/g;
594: $result =~ s/&\#116;/t/g;
595: $result =~ s/&\#117;/u/g;
596: $result =~ s/&\#118;/v/g;
597: $result =~ s/&\#119;/w/g;
598: $result =~ s/&\#120;/x/g;
599: $result =~ s/&\#121;/y/g;
600: $result =~ s/&\#122;/z/g;
601: $result =~ s/&\#123;/\\{/g;
602: $result =~ s/&\#124;/\|/g;
603: $result =~ s/&\#125;/\\}/g;
604: $result =~ s/&\#126;/\~/g;
605: $result =~ s/&\#131;/\\textflorin /g;
606: $result =~ s/&\#132;/\"/g;
607: $result =~ s/&\#133;/\\ensuremath\{\\ldots\}/g;
608: $result =~ s/&\#134;/\\ensuremath\{\\dagger\}/g;
609: $result =~ s/&\#135;/\\ensuremath\{\\ddagger\}/g;
610: $result =~ s/&\#137;/\\textperthousand /g;
611: $result =~ s/&\#140;/{\\OE}/g;
612: $result =~ s/&\#147;/\`\`/g;
613: $result =~ s/&\#148;/\'\'/g;
614: $result =~ s/&\#149;/\\ensuremath\{\\bullet\}/g;
615: $result =~ s/&(\#150|\#8211);/--/g;
616: $result =~ s/&\#151;/---/g;
617: $result =~ s/&\#152;/\\ensuremath\{\\sim\}/g;
618: $result =~ s/&\#153;/\\texttrademark /g;
619: $result =~ s/&\#156;/\\oe/g;
620: $result =~ s/&\#159;/\\\"Y/g;
621: $result =~ s/&(\#160|nbsp);/~/g;
622: $result =~ s/&(\#161|iexcl);/!\`/g;
623: $result =~ s/&(\#162|cent);/\\textcent /g;
624: $result =~ s/&(\#163|pound);/\\pounds /g;
625: $result =~ s/&(\#164|curren);/\\textcurrency /g;
626: $result =~ s/&(\#165|yen);/\\textyen /g;
627: $result =~ s/&(\#166|brvbar);/\\textbrokenbar /g;
628: $result =~ s/&(\#167|sect);/\\textsection /g;
629: $result =~ s/&(\#168|uml);/\\texthighdieresis /g;
630: $result =~ s/&(\#169|copy);/\\copyright /g;
631: $result =~ s/&(\#170|ordf);/\\textordfeminine /g;
632: $result =~ s/&(\#172|not);/\\ensuremath\{\\neg\}/g;
633: $result =~ s/&(\#173|shy);/ - /g;
634: $result =~ s/&(\#174|reg);/\\textregistered /g;
635: $result =~ s/&(\#175|macr);/\\ensuremath\{^{-}\}/g;
636: $result =~ s/&(\#176|deg);/\\ensuremath\{^{\\circ}\}/g;
637: $result =~ s/&(\#177|plusmn);/\\ensuremath\{\\pm\}/g;
638: $result =~ s/&(\#178|sup2);/\\ensuremath\{^2\}/g;
639: $result =~ s/&(\#179|sup3);/\\ensuremath\{^3\}/g;
640: $result =~ s/&(\#180|acute);/\\textacute /g;
641: $result =~ s/&(\#181|micro);/\\ensuremath\{\\mu\}/g;
642: $result =~ s/&(\#182|para);/\\P/g;
643: $result =~ s/&(\#183|middot);/\\ensuremath\{\\cdot\}/g;
644: $result =~ s/&(\#184|cedil);/\\c{\\strut}/g;
645: $result =~ s/&(\#185|sup1);/\\ensuremath\{^1\}/g;
646: $result =~ s/&(\#186|ordm);/\\textordmasculine /g;
647: $result =~ s/&(\#188|frac14);/\\textonequarter /g;
648: $result =~ s/&(\#189|frac12);/\\textonehalf /g;
649: $result =~ s/&(\#190|frac34);/\\textthreequarters /g;
650: $result =~ s/&(\#191|iquest);/?\`/g;
651: $result =~ s/&(\#192|Agrave);/\\\`{A}/g;
652: $result =~ s/&(\#193|Aacute);/\\\'{A}/g;
653: $result =~ s/&(\#194|Acirc);/\\^{A}/g;
654: $result =~ s/&(\#195|Atilde);/\\~{A}/g;
655: $result =~ s/&(\#196|Auml);/\\\"{A}/g;
656: $result =~ s/&(\#197|Aring);/{\\AA}/g;
657: $result =~ s/&(\#198|AElig);/{\\AE}/g;
658: $result =~ s/&(\#199|Ccedil);/\\c{c}/g;
659: $result =~ s/&(\#200|Egrave);/\\\`{E}/g;
660: $result =~ s/&(\#201|Eacute);/\\\'{E}/g;
661: $result =~ s/&(\#202|Ecirc);/\\^{E}/g;
662: $result =~ s/&(\#203|Euml);/\\\"{E}/g;
663: $result =~ s/&(\#204|Igrave);/\\\`{I}/g;
664: $result =~ s/&(\#205|Iacute);/\\\'{I}/g;
665: $result =~ s/&(\#206|Icirc);/\\^{I}/g;
666: $result =~ s/&(\#207|Iuml);/\\\"{I}/g;
667: $result =~ s/&(\#209|Ntilde);/\\~{N}/g;
668: $result =~ s/&(\#210|Ograve);/\\\`{O}/g;
669: $result =~ s/&(\#211|Oacute);/\\\'{O}/g;
670: $result =~ s/&(\#212|Ocirc);/\\^{O}/g;
671: $result =~ s/&(\#213|Otilde);/\\~{O}/g;
672: $result =~ s/&(\#214|Ouml);/\\\"{O}/g;
673: $result =~ s/&(\#215|times);/\\ensuremath\{\\times\}/g;
674: $result =~ s/&(\#216|Oslash);/{\\O}/g;
675: $result =~ s/&(\#217|Ugrave);/\\\`{U}/g;
676: $result =~ s/&(\#218|Uacute);/\\\'{U}/g;
677: $result =~ s/&(\#219|Ucirc);/\\^{U}/g;
678: $result =~ s/&(\#220|Uuml);/\\\"{U}/g;
679: $result =~ s/&(\#221|Yacute);/\\\'{Y}/g;
680: $result =~ s/&(\#223|szlig);/{\\ss}/g;
681: $result =~ s/&(\#224|agrave);/\\\`{a}/g;
682: $result =~ s/&(\#225|aacute);/\\\'{a}/g;
683: $result =~ s/&(\#226|acirc);/\\^{a}/g;
684: $result =~ s/&(\#227|atilde);/\\~{a}/g;
685: $result =~ s/&(\#228|auml);/\\\"{a}/g;
686: $result =~ s/&(\#229|aring);/{\\aa}/g;
687: $result =~ s/&(\#230|aelig);/{\\ae}/g;
688: $result =~ s/&(\#231|ccedil);/\\c{c}/g;
689: $result =~ s/&(\#232|egrave);/\\\`{e}/g;
690: $result =~ s/&(\#233|eacute);/\\\'{e}/g;
691: $result =~ s/&(\#234|ecirc);/\\^{e}/g;
692: $result =~ s/&(\#235|euml);/\\\"{e}/g;
693: $result =~ s/&(\#236|igrave);/\\\`{i}/g;
694: $result =~ s/&(\#237|iacute);/\\\'{i}/g;
695: $result =~ s/&(\#238|icirc);/\\^{i}/g;
696: $result =~ s/&(\#239|iuml);/\\\"{i}/g;
697: $result =~ s/&(\#240|eth);/\\ensuremath\{\\partial\}/g;
698: $result =~ s/&(\#241|ntilde);/\\~{n}/g;
699: $result =~ s/&(\#242|ograve);/\\\`{o}/g;
700: $result =~ s/&(\#243|oacute);/\\\'{o}/g;
701: $result =~ s/&(\#244|ocirc);/\\^{o}/g;
702: $result =~ s/&(\#245|otilde);/\\~{o}/g;
703: $result =~ s/&(\#246|ouml);/\\\"{o}/g;
704: $result =~ s/&(\#247|divide);/\\ensuremath\{\\div\}/g;
705: $result =~ s/&(\#248|oslash);/{\\o}/g;
706: $result =~ s/&(\#249|ugrave);/\\\`{u}/g;
707: $result =~ s/&(\#250|uacute);/\\\'{u}/g;
708: $result =~ s/&(\#251|ucirc);/\\^{u}/g;
709: $result =~ s/&(\#252|uuml);/\\\"{u}/g;
710: $result =~ s/&(\#253|yacute);/\\\'{y}/g;
711: $result =~ s/&(\#255|yuml);/\\\"{y}/g;
712: $result =~ s/&\#295;/\\ensuremath\{\\hbar\}/g;
713: $result =~ s/&\#952;/\\ensuremath\{\\theta\}/g;
714: #Greek Alphabet
715: $result =~ s/&(alpha|\#945);/\\ensuremath\{\\alpha\}/g;
716: $result =~ s/&(beta|\#946);/\\ensuremath\{\\beta\}/g;
717: $result =~ s/&(gamma|\#947);/\\ensuremath\{\\gamma\}/g;
718: $result =~ s/&(delta|\#948);/\\ensuremath\{\\delta\}/g;
719: $result =~ s/&(epsilon|\#949);/\\ensuremath\{\\epsilon\}/g;
720: $result =~ s/&(zeta|\#950);/\\ensuremath\{\\zeta\}/g;
721: $result =~ s/&(eta|\#951);/\\ensuremath\{\\eta\}/g;
722: $result =~ s/&(theta|\#952);/\\ensuremath\{\\theta\}/g;
723: $result =~ s/&(iota|\#953);/\\ensuremath\{\\iota\}/g;
724: $result =~ s/&(kappa|\#954);/\\ensuremath\{\\kappa\}/g;
725: $result =~ s/&(lambda|\#955);/\\ensuremath\{\\lambda\}/g;
726: $result =~ s/&(mu|\#956);/\\ensuremath\{\\mu\}/g;
727: $result =~ s/&(nu|\#957);/\\ensuremath\{\\nu\}/g;
728: $result =~ s/&(xi|\#958);/\\ensuremath\{\\xi\}/g;
729: $result =~ s/&(omicron|\#959);/o/g;
730: $result =~ s/&(pi|\#960);/\\ensuremath\{\\pi\}/g;
731: $result =~ s/&(rho|\#961);/\\ensuremath\{\\rho\}/g;
732: $result =~ s/&(sigma|\#963);/\\ensuremath\{\\sigma\}/g;
733: $result =~ s/&(tau|\#964);/\\ensuremath\{\\tau\}/g;
734: $result =~ s/&(upsilon|\#965);/\\ensuremath\{\\upsilon\}/g;
735: $result =~ s/&(phi|\#966);/\\ensuremath\{\\phi\}/g;
736: $result =~ s/&(chi|\#967);/\\ensuremath\{\\chi\}/g;
737: $result =~ s/&(psi|\#968);/\\ensuremath\{\\psi\}/g;
738: $result =~ s/&(omega|\#969);/\\ensuremath\{\\omega\}/g;
739: $result =~ s/&(thetasym|\#977);/\\ensuremath\{\\vartheta\}/g;
740: $result =~ s/&(piv|\#982);/\\ensuremath\{\\varpi\}/g;
741: $result =~ s/&(Alpha|\#913);/A/g;
742: $result =~ s/&(Beta|\#914);/B/g;
743: $result =~ s/&(Gamma|\#915);/\\ensuremath\{\\Gamma\}/g;
744: $result =~ s/&(Delta|\#916);/\\ensuremath\{\\Delta\}/g;
745: $result =~ s/&(Epsilon|\#917);/E/g;
746: $result =~ s/&(Zeta|\#918);/Z/g;
747: $result =~ s/&(Eta|\#919);/H/g;
748: $result =~ s/&(Theta|\#920);/\\ensuremath\{\\Theta\}/g;
749: $result =~ s/&(Iota|\#921);/I/g;
750: $result =~ s/&(Kappa|\#922);/K/g;
751: $result =~ s/&(Lambda|\#923);/\\ensuremath\{\\Lambda\}/g;
752: $result =~ s/&(Mu|\#924);/M/g;
753: $result =~ s/&(Nu|\#925);/N/g;
754: $result =~ s/&(Xi|\#926);/\\ensuremath\{\\Xi\}/g;
755: $result =~ s/&(Omicron|\#927);/O/g;
756: $result =~ s/&(Pi|\#928);/\\ensuremath\{\\Pi\}/g;
757: $result =~ s/&(Rho|\#929);/P/g;
758: $result =~ s/&(Sigma|\#931);/\\ensuremath\{\\Sigma\}/g;
759: $result =~ s/&(Tau|\#932);/T/g;
760: $result =~ s/&(Upsilon|\#933);/\\ensuremath\{\\Upsilon\}/g;
761: $result =~ s/&(Phi|\#934);/\\ensuremath\{\\Phi\}/g;
762: $result =~ s/&(Chi|\#935);/X/g;
763: $result =~ s/&(Psi|\#936);/\\ensuremath\{\\Psi\}/g;
764: $result =~ s/&(Omega|\#937);/\\ensuremath\{\\Omega\}/g;
765: #Arrows (extended HTML 4.01)
766: $result =~ s/&(larr|\#8592);/\\ensuremath\{\\leftarrow\}/g;
767: $result =~ s/&(uarr|\#8593);/\\ensuremath\{\\uparrow\}/g;
768: $result =~ s/&(rarr|\#8594);/\\ensuremath\{\\rightarrow\}/g;
769: $result =~ s/&(darr|\#8595);/\\ensuremath\{\\downarrow\}/g;
770: $result =~ s/&(harr|\#8596);/\\ensuremath\{\\leftrightarrow\}/g;
771: $result =~ s/&(lArr|\#8656);/\\ensuremath\{\\Leftarrow\}/g;
772: $result =~ s/&(uArr|\#8657);/\\ensuremath\{\\Uparrow\}/g;
773: $result =~ s/&(rArr|\#8658);/\\ensuremath\{\\Rightarrow\}/g;
774: $result =~ s/&(dArr|\#8659);/\\ensuremath\{\\Downarrow\}/g;
775: $result =~ s/&(hArr|\#8660);/\\ensuremath\{\\Leftrightarrow\}/g;
776: #Mathematical Operators (extended HTML 4.01)
777: $result =~ s/&(forall|\#8704);/\\ensuremath\{\\forall\}/g;
778: $result =~ s/&(part|\#8706);/\\ensuremath\{\\partial\}/g;
779: $result =~ s/&(exist|\#8707);/\\ensuremath\{\\exists\}/g;
780: $result =~ s/&(empty|\#8709);/\\ensuremath\{\\emptyset\}/g;
781: $result =~ s/&(nabla|\#8711);/\\ensuremath\{\\nabla\}/g;
782: $result =~ s/&(isin|\#8712);/\\ensuremath\{\\in\}/g;
783: $result =~ s/&(notin|\#8713);/\\ensuremath\{\\notin\}/g;
784: $result =~ s/&(ni|\#8715);/\\ensuremath\{\\ni\}/g;
785: $result =~ s/&(prod|\#8719);/\\ensuremath\{\\prod\}/g;
786: $result =~ s/&(sum|\#8721);/\\ensuremath\{\\sum\}/g;
787: $result =~ s/&(minus|\#8722);/\\ensuremath\{-\}/g;
788: $result =~ s/–/\\ensuremath\{-\}/g;
789: $result =~ s/&(lowast|\#8727);/\\ensuremath\{*\}/g;
790: $result =~ s/&(radic|\#8730);/\\ensuremath\{\\surd\}/g;
791: $result =~ s/&(prop|\#8733);/\\ensuremath\{\\propto\}/g;
792: $result =~ s/&(infin|\#8734);/\\ensuremath\{\\infty\}/g;
793: $result =~ s/&(ang|\#8736);/\\ensuremath\{\\angle\}/g;
794: $result =~ s/&(and|\#8743);/\\ensuremath\{\\wedge\}/g;
795: $result =~ s/&(or|\#8744);/\\ensuremath\{\\vee\}/g;
796: $result =~ s/&(cap|\#8745);/\\ensuremath\{\\cap\}/g;
797: $result =~ s/&(cup|\#8746);/\\ensuremath\{\\cup\}/g;
798: $result =~ s/&(int|\#8747);/\\ensuremath\{\\int\}/g;
799: $result =~ s/&(sim|\#8764);/\\ensuremath\{\\sim\}/g;
800: $result =~ s/&(cong|\#8773);/\\ensuremath\{\\cong\}/g;
801: $result =~ s/&(asymp|\#8776);/\\ensuremath\{\\approx\}/g;
802: $result =~ s/&(ne|\#8800);/\\ensuremath\{\\not=\}/g;
803: $result =~ s/&(equiv|\#8801);/\\ensuremath\{\\equiv\}/g;
804: $result =~ s/&(le|\#8804);/\\ensuremath\{\\leq\}/g;
805: $result =~ s/&(ge|\#8805);/\\ensuremath\{\\geq\}/g;
806: $result =~ s/&(sub|\#8834);/\\ensuremath\{\\subset\}/g;
807: $result =~ s/&(sup|\#8835);/\\ensuremath\{\\supset\}/g;
808: $result =~ s/&(nsub|\#8836);/\\ensuremath\{\\not\\subset\}/g;
809: $result =~ s/&(sube|\#8838);/\\ensuremath\{\\subseteq\}/g;
810: $result =~ s/&(supe|\#8839);/\\ensuremath\{\\supseteq\}/g;
811: $result =~ s/&(oplus|\#8853);/\\ensuremath\{\\oplus\}/g;
812: $result =~ s/&(otimes|\#8855);/\\ensuremath\{\\otimes\}/g;
813: $result =~ s/&(perp|\#8869);/\\ensuremath\{\\perp\}/g;
814: $result =~ s/&(sdot|\#8901);/\\ensuremath\{\\cdot\}/g;
815: #Geometric Shapes (extended HTML 4.01)
816: $result =~ s/&(loz|\#9674);/\\ensuremath\{\\Diamond\}/g;
817: #Miscellaneous Symbols (extended HTML 4.01)
818: $result =~ s/&(spades|\#9824);/\\ensuremath\{\\spadesuit\}/g;
819: $result =~ s/&(clubs|\#9827);/\\ensuremath\{\\clubsuit\}/g;
820: $result =~ s/&(hearts|\#9829);/\\ensuremath\{\\heartsuit\}/g;
821: $result =~ s/&(diams|\#9830);/\\ensuremath\{\\diamondsuit\}/g;
822: # Chemically useful 'things' contributed by Hon Kie (bug 4652).
823:
824: $result =~ s/&\#8636;/\\ensuremath\{\\leftharpoonup\}/g;
825: $result =~ s/&\#8637;/\\ensuremath\{\\leftharpoondown\}/g;
826: $result =~ s/&\#8640;/\\ensuremath\{\\rightharpoonup\}/g;
827: $result =~ s/&\#8641;/\\ensuremath\{\\rightharpoondown\}/g;
828: $result =~ s/&\#8652;/\\ensuremath\{\\rightleftharpoons\}/g;
829: $result =~ s/&\#8605;/\\ensuremath\{\\leadsto\}/g;
830: $result =~ s/&\#8617;/\\ensuremath\{\\hookleftarrow\}/g;
831: $result =~ s/&\#8618;/\\ensuremath\{\\hookrightarrow\}/g;
832: $result =~ s/&\#8614;/\\ensuremath\{\\mapsto\}/g;
833: $result =~ s/&\#8599;/\\ensuremath\{\\nearrow\}/g;
834: $result =~ s/&\#8600;/\\ensuremath\{\\searrow\}/g;
835: $result =~ s/&\#8601;/\\ensuremath\{\\swarrow\}/g;
836: $result =~ s/&\#8598;/\\ensuremath\{\\nwarrow\}/g;
837:
838: # Left/right quotations:
839:
840: $result =~ s/&(ldquo|#8220);/\`\`/g;
841: $result =~ s/&(rdquo|#8221);/\'\'/g;
842:
843:
844: return $result;
845: }
846:
847:
848: #width, height, oddsidemargin, evensidemargin, topmargin
849: my %page_formats=
850: ('letter' => {
851: 'book' => {
852: '1' => [ '7.1 in','9.8 in', '-0.57 in','-0.57 in','0.275 in'],
853: '2' => ['3.66 in','9.8 in', '-0.57 in','-0.57 in','0.275 in']
854: },
855: 'album' => {
856: '1' => [ '8.8 in', '6.8 in','-0.55 in', '-0.55 in','0.394 in'],
857: '2' => [ '4.8 in', '6.8 in','-0.5 in', '-1.0 in','3.5 in']
858: },
859: },
860: 'legal' => {
861: 'book' => {
862: '1' => ['7.1 in','13 in',,'-0.57 in','-0.57 in','-0.5 in'],
863: '2' => ['3.66 in','13 in','-0.57 in','-0.57 in','-0.5 in']
864: },
865: 'album' => {
866: '1' => ['12 in','7.1 in',,'-0.57 in','-0.57 in','-0.5 in'],
867: '2' => ['6.0 in','7.1 in','-1 in','-1 in','5 in']
868: },
869: },
870: 'tabloid' => {
871: 'book' => {
872: '1' => ['9.8 in','16 in','-0.57 in','-0.57 in','-0.5 in'],
873: '2' => ['4.9 in','16 in','-0.57 in','-0.57 in','-0.5 in']
874: },
875: 'album' => {
876: '1' => ['16 in','9.8 in','-0.57 in','-0.57 in','-0.5 in'],
877: '2' => ['16 in','4.9 in','-0.57 in','-0.57 in','-0.5 in']
878: },
879: },
880: 'executive' => {
881: 'book' => {
882: '1' => ['6.8 in','9 in','-0.57 in','-0.57 in','1.2 in'],
883: '2' => ['3.1 in','9 in','-0.57 in','-0.57 in','1.2 in']
884: },
885: 'album' => {
886: '1' => [],
887: '2' => []
888: },
889: },
890: 'a2' => {
891: 'book' => {
892: '1' => [],
893: '2' => []
894: },
895: 'album' => {
896: '1' => [],
897: '2' => []
898: },
899: },
900: 'a3' => {
901: 'book' => {
902: '1' => [],
903: '2' => []
904: },
905: 'album' => {
906: '1' => [],
907: '2' => []
908: },
909: },
910: 'a4' => {
911: 'book' => {
912: '1' => ['17.6 cm','27.2 cm','-1.397 cm','-2.11 cm','-1.27 cm'],
913: '2' => [ '9.1 cm','27.2 cm','-1.397 cm','-2.11 cm','-1.27 cm']
914: },
915: 'album' => {
916: '1' => ['21.59 cm','19.558 cm','-1.397cm','-2.11 cm','0 cm'],
917: '2' => ['9.91 cm','19.558 cm','-1.397 cm','-2.11 cm','0 cm']
918: },
919: },
920: 'a5' => {
921: 'book' => {
922: '1' => [],
923: '2' => []
924: },
925: 'album' => {
926: '1' => [],
927: '2' => []
928: },
929: },
930: 'a6' => {
931: 'book' => {
932: '1' => [],
933: '2' => []
934: },
935: 'album' => {
936: '1' => [],
937: '2' => []
938: },
939: },
940: );
941:
942: sub page_format {
943: #
944: #Supported paper format: "Letter [8 1/2x11 in]", "Legal [8 1/2x14 in]",
945: # "Ledger/Tabloid [11x17 in]", "Executive [7 1/2x10 in]",
946: # "A2 [420x594 mm]", "A3 [297x420 mm]",
947: # "A4 [210x297 mm]", "A5 [148x210 mm]",
948: # "A6 [105x148 mm]"
949: #
950: my ($papersize,$layout,$numberofcolumns) = @_;
951: return @{$page_formats{$papersize}->{$layout}->{$numberofcolumns}};
952: }
953:
954:
955: sub get_name {
956: my ($uname,$udom)=@_;
957: if (!defined($uname)) { $uname=$env{'user.name'}; }
958: if (!defined($udom)) { $udom=$env{'user.domain'}; }
959: my $plainname=&Apache::loncommon::plainname($uname,$udom);
960: if ($plainname=~/^\s*$/) { $plainname=$uname.'@'.$udom; }
961: $plainname=&Apache::lonxml::latex_special_symbols($plainname,'header');
962: return $plainname;
963: }
964:
965: sub get_course {
966: my $courseidinfo;
967: if (defined($env{'request.course.id'})) {
968: $courseidinfo = &Apache::lonxml::latex_special_symbols(&unescape($env{'course.'.$env{'request.course.id'}.'.description'}),'header');
969: }
970: return $courseidinfo;
971: }
972:
973: sub page_format_transformation {
974: my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment,$tableofcontents,$indexlist,$selectionmade) = @_;
975: my ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin);
976:
977: if ($selectionmade eq '4') {
978: if ($choice eq 'all_problems') {
979: $assignment='Problems from the Whole Course';
980: } else {
981: $assignment='Resources from the Whole Course';
982: }
983: } else {
984: $assignment=&Apache::lonxml::latex_special_symbols($assignment,'header');
985: }
986: ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin) = &page_format($papersize,$layout,$numberofcolumns,$topmargin);
987:
988:
989: my $name = &get_name();
990: my $courseidinfo = &get_course();
991: if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
992: my $header_text = $parmhash{'print_header_format'};
993: $header_text = &format_page_header($textwidth, $header_text, $assignment,
994: $courseidinfo, $name);
995: my $topmargintoinsert = '';
996: if ($topmargin ne '0') {$topmargintoinsert='\setlength{\topmargin}{'.$topmargin.'}';}
997: my $fancypagestatement='';
998: if ($numberofcolumns eq '2') {
999: $fancypagestatement="\\fancyhead{}\\fancyhead[LO]{$header_text}";
1000: } else {
1001: $fancypagestatement="\\rhead{}\\chead{}\\lhead{$header_text}";
1002: }
1003: if ($layout eq 'album') {
1004: $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$oddoffset}\\setlength{\\evensidemargin}{$evenoffset}$topmargintoinsert\n\\setlength{\\textwidth}{$textwidth}\\setlength{\\textheight}{$textheight}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt}\n\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\usepackage{fancyhdr}\\addtolength{\\headheight}{\\baselineskip}\n\\pagestyle{fancy}$fancypagestatement\\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1}\n /;
1005: } elsif ($layout eq 'book') {
1006: if ($choice ne 'All class print') {
1007: $text =~ s/\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset $topmargintoinsert\n\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\n\\renewcommand{\\ref}{\\keephidden\}\\usepackage{fancyhdr}\\addtolength{\\headheight}{\\baselineskip}\\pagestyle{fancy}$fancypagestatement\\begin{document}\n\\voffset=-0\.8 cm\\setcounter{page}{1}\n/;
1008: } else {
1009: $text =~ s/\\pagestyle{fancy}\\rhead{}\\chead{}\s*\\begin{document}/\\textheight = $textheight\\oddsidemargin = $evenoffset\n\\evensidemargin = $evenoffset $topmargintoinsert\\textwidth= $textwidth\\newlength{\\minipagewidth}\n\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\pagestyle{fancy}\\rhead{}\\chead{}\\begin{document}\\voffset=-0\.8cm\n\\setcounter{page}{1} \\vskip 5 mm\n /;
1010: }
1011: if ($papersize eq 'a4') {
1012: $text =~ s/(\\begin{document})/$1\\special{papersize=210mm,297mm}/;
1013: }
1014: }
1015: if ($tableofcontents eq 'yes') {$text=~s/(\\setcounter\{page\}\{1\})/$1 \\tableofcontents\\newpage /;}
1016: if ($indexlist eq 'yes') {
1017: $text=~s/(\\begin{document})/\\makeindex $1/;
1018: $text=~s/(\\end{document})/\\strut\\\\\\strut\\printindex $1/;
1019: }
1020: return $text;
1021: }
1022:
1023:
1024: sub page_cleanup {
1025: my $result = shift;
1026:
1027: $result =~ m/\\end{document}(\d*)$/;
1028: my $number_of_columns = $1;
1029: my $insert = '{';
1030: for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
1031: $insert .= '}';
1032: $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE\\endfirsthead\\endhead/$1$insert/g;
1033: $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
1034: return $result,$number_of_columns;
1035: }
1036:
1037:
1038: sub details_for_menu {
1039: my ($helper)=@_;
1040: my $postdata=$env{'form.postdata'};
1041: if (!$postdata) { $postdata=$helper->{VARS}{'postdata'}; }
1042: my $name_of_resource = &Apache::lonnet::gettitle($postdata);
1043: my $symbolic = &Apache::lonnet::symbread($postdata);
1044: return if ( $symbolic eq '');
1045:
1046: my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symbolic);
1047: $map=&Apache::lonnet::clutter($map);
1048: my $name_of_sequence = &Apache::lonnet::gettitle($map);
1049: if ($name_of_sequence =~ /^\s*$/) {
1050: $map =~ m|([^/]+)$|;
1051: $name_of_sequence = $1;
1052: }
1053: my $name_of_map = &Apache::lonnet::gettitle($env{'request.course.uri'});
1054: if ($name_of_map =~ /^\s*$/) {
1055: $env{'request.course.uri'} =~ m|([^/]+)$|;
1056: $name_of_map = $1;
1057: }
1058: return ($name_of_resource,$name_of_sequence,$name_of_map);
1059: }
1060:
1061: sub copyright_line {
1062: return '\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\vspace*{-2 mm}\newline\noindent{\tiny Printed from LON-CAPA\copyright MSU{\hfill} Licensed under GNU General Public License } ';
1063: }
1064: my $end_of_student = "\n".'\special{ps:ENDOFSTUDENTSTAMP}'."\n";
1065:
1066: sub latex_corrections {
1067: my ($number_of_columns,$result,$selectionmade,$answer_mode) = @_;
1068: # $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;
1069: my $copyright = ©right_line();
1070: if ($selectionmade eq '1' || $answer_mode eq 'only') {
1071: $result =~ s/(\\end{document})/\\strut\\vskip 0 mm $copyright $end_of_student $1/;
1072: } else {
1073: $result =~ s/(\\end{document})/\\strut\\vspace\*{-4 mm}\\newline $copyright $end_of_student $1/;
1074: }
1075: $result =~ s/\$number_of_columns/$number_of_columns/g;
1076: $result =~ s/(\\end{longtable}\s*)(\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
1077: $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;
1078: #-- LaTeX corrections
1079: my $first_comment = index($result,'<!--',0);
1080: while ($first_comment != -1) {
1081: my $end_comment = index($result,'-->',$first_comment);
1082: substr($result,$first_comment,$end_comment-$first_comment+3) = '';
1083: $first_comment = index($result,'<!--',$first_comment);
1084: }
1085: $result =~ s/^\s+$//gm; #remove empty lines
1086: #removes more than one empty space
1087: $result =~ s|(\s\s+)|($1=~/[\n\r]/)?"\n":" "|ge;
1088: $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
1089: $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
1090: $result =~ s/{\\par }\s*\\\\/\\\\/gm;
1091: $result =~ s/\\\\\s+\[/ \[/g;
1092: #conversion of html characters to LaTeX equivalents
1093: if ($result =~ m/&(\w+|#\d+);/) {
1094: $result = &character_chart($result);
1095: }
1096: $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
1097: $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
1098: return $result;
1099: }
1100:
1101:
1102: sub index_table {
1103: my $currentURL = shift;
1104: my $insex_string='';
1105: $currentURL=~s/\.([^\/+])$/\.$1\.meta/;
1106: $insex_string=&Apache::lonnet::metadata($currentURL,'keywords');
1107: return $insex_string;
1108: }
1109:
1110:
1111: sub IndexCreation {
1112: my ($texversion,$currentURL)=@_;
1113: my @key_words=split(/,/,&index_table($currentURL));
1114: my $chunk='';
1115: my $st=index $texversion,'\addcontentsline{toc}{subsection}{';
1116: if ($st>0) {
1117: for (my $i=0;$i<3;$i++) {$st=(index $texversion,'}',$st+1);}
1118: $chunk=substr($texversion,0,$st+1);
1119: substr($texversion,0,$st+1)=' ';
1120: }
1121: foreach my $key_word (@key_words) {
1122: if ($key_word=~/\S+/) {
1123: $texversion=~s/\b($key_word)\b/$1 \\index{$key_word} /i;
1124: }
1125: }
1126: if ($st>0) {substr($texversion,0,1)=$chunk;}
1127: return $texversion;
1128: }
1129:
1130: sub print_latex_header {
1131: my $mode=shift;
1132: my $output='\documentclass[letterpaper,twoside]{article}\raggedbottom';
1133: if (($mode eq 'batchmode') || (!$perm{'pav'})) {
1134: $output.='\batchmode';
1135: }
1136: $output.='\newcommand{\keephidden}[1]{}\renewcommand{\deg}{$^{\circ}$}'."\n".
1137: '\usepackage{multirow}'."\n".
1138: '\usepackage{longtable}\usepackage{textcomp}\usepackage{makeidx}'."\n".
1139: '\usepackage[dvips]{graphicx}\usepackage{epsfig}'."\n".
1140: '\usepackage{wrapfig}'.
1141: '\usepackage{picins}\usepackage{calc}'."\n".
1142: '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}'."\n".
1143: '\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}'."\n".
1144: '\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}'."\n".
1145: '\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}'."\n".
1146: '\setlength{\abovedisplayshortskip}{-0.04in}'."\n".
1147: '\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'."\n".
1148: '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large'."\n".
1149: '\textbf{Index}} \newline \setlength{\rightmargin}{0in}'."\n".
1150: '\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}'."\n".
1151: '\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}'."\n".
1152: '\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}'."\n".
1153: '\setlength{\abovedisplayshortskip}{-0.04in}'."\n".
1154: '\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}\begin{document}'."\n";
1155: return $output;
1156: }
1157:
1158: sub path_to_problem {
1159: my ($urlp,$colwidth)=@_;
1160: $urlp=&Apache::lonnet::clutter($urlp);
1161:
1162: my $newurlp = '';
1163: $colwidth=~s/\s*mm\s*$//;
1164: #characters average about 2 mm in width
1165: if (length($urlp)*2 > $colwidth) {
1166: my @elements = split('/',$urlp);
1167: my $curlength=0;
1168: foreach my $element (@elements) {
1169: if ($element eq '') { next; }
1170: if ($curlength+(length($element)*2) > $colwidth) {
1171: $newurlp .= '|\vskip -1 mm \verb|';
1172: $curlength=length($element)*2;
1173: } else {
1174: $curlength+=length($element)*2;
1175: }
1176: $newurlp.='/'.$element;
1177: }
1178: } else {
1179: $newurlp=$urlp;
1180: }
1181: return '{\small\noindent\verb|'.$newurlp.'|\vskip 0 mm}';
1182: }
1183:
1184: sub recalcto_mm {
1185: my $textwidth=shift;
1186: my $LaTeXwidth;
1187: if ($textwidth=~/(-?\d+\.?\d*)\s*cm/) {
1188: $LaTeXwidth = $1*10;
1189: } elsif ($textwidth=~/(-?\d+\.?\d*)\s*mm/) {
1190: $LaTeXwidth = $1;
1191: } elsif ($textwidth=~/(-?\d+\.?\d*)\s*in/) {
1192: $LaTeXwidth = $1*25.4;
1193: }
1194: $LaTeXwidth.=' mm';
1195: return $LaTeXwidth;
1196: }
1197:
1198: sub get_textwidth {
1199: my ($helper,$LaTeXwidth)=@_;
1200: my $textwidth=$LaTeXwidth;
1201: if ($helper->{'VARS'}->{'pagesize.width'}=~/\d+/ &&
1202: $helper->{'VARS'}->{'pagesize.widthunit'}=~/\w+/) {
1203: $textwidth=&recalcto_mm($helper->{'VARS'}->{'pagesize.width'}.' '.
1204: $helper->{'VARS'}->{'pagesize.widthunit'});
1205: }
1206: return $textwidth;
1207: }
1208:
1209:
1210: sub unsupported {
1211: my ($currentURL,$mode,$symb)=@_;
1212: if ($mode ne '') {$mode='\\'.$mode}
1213: my $result.= &print_latex_header($mode);
1214: if ($currentURL=~m|^(/adm/wrapper/)?ext/|) {
1215: $currentURL=~s|^(/adm/wrapper/)?ext/|http://|;
1216: my $title=&Apache::lonnet::gettitle($symb);
1217: $title = &Apache::lonxml::latex_special_symbols($title);
1218: $result.=' \strut \\\\ '.$title.' \strut \\\\ '.$currentURL.' ';
1219: } else {
1220: $result.=$currentURL;
1221: }
1222: $result.= '\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill} \end{document}';
1223: return $result;
1224: }
1225:
1226:
1227: #
1228: # List of recently generated print files
1229: #
1230: sub recently_generated {
1231: my $r=shift;
1232: my $prtspool=$r->dir_config('lonPrtDir');
1233: my $zip_result;
1234: my $pdf_result;
1235: opendir(DIR,$prtspool);
1236:
1237: my @files =
1238: grep(/^$env{'user.name'}_$env{'user.domain'}_printout_(\d+)_.*\.(pdf|zip)$/,readdir(DIR));
1239: closedir(DIR);
1240:
1241: @files = sort {
1242: my ($actime) = (stat($prtspool.'/'.$a))[10];
1243: my ($bctime) = (stat($prtspool.'/'.$b))[10];
1244: return $bctime <=> $actime;
1245: } (@files);
1246:
1247: foreach my $filename (@files) {
1248: my ($ext) = ($filename =~ m/(pdf|zip)$/);
1249: my ($cdev,$cino,$cmode,$cnlink,
1250: $cuid,$cgid,$crdev,$csize,
1251: $catime,$cmtime,$cctime,
1252: $cblksize,$cblocks)=stat($prtspool.'/'.$filename);
1253: my $result="<a href='/prtspool/$filename'>".
1254: &mt('Generated [_1] ([_2] bytes)',
1255: &Apache::lonlocal::locallocaltime($cctime),$csize).
1256: '</a><br />';
1257: if ($ext eq 'pdf') { $pdf_result .= $result; }
1258: if ($ext eq 'zip') { $zip_result .= $result; }
1259: }
1260: if ($zip_result) {
1261: $r->print('<h4>'.&mt('Recently generated printout zip files')."</h4>\n"
1262: .$zip_result);
1263: }
1264: if ($pdf_result) {
1265: $r->print('<h4>'.&mt('Recently generated printouts')."</h4>\n"
1266: .$pdf_result);
1267: }
1268: }
1269:
1270: #
1271: # Retrieve the hash of page breaks.
1272: #
1273: # Inputs:
1274: # helper - reference to helper object.
1275: # Outputs
1276: # A reference to a page break hash.
1277: #
1278: #
1279: #use Data::Dumper;
1280: #sub dump_helper_vars {
1281: # my ($helper) = @_;
1282: # my $helpervars = Dumper($helper->{'VARS'});
1283: # &Apache::lonnet::logthis("Dump of helper vars:\n $helpervars");
1284: #}
1285:
1286: sub get_page_breaks {
1287: my ($helper) = @_;
1288: my %page_breaks;
1289:
1290: foreach my $break (split /\|\|\|/, $helper->{'VARS'}->{'FINISHPAGE'}) {
1291: $page_breaks{$break} = 1;
1292: }
1293: return %page_breaks;
1294: }
1295:
1296: # Output a sequence (recursively if neeed)
1297: # from construction space.
1298: # Parameters:
1299: # url = URL of the sequence to print.
1300: # helper - Reference to the helper hash.
1301: # form - Copy of the format hash.
1302: # LaTeXWidth
1303: # Returns:
1304: # Text to add to the printout.
1305: # NOTE if the first element of the outermost sequence
1306: # is itself a sequence, the outermost caller may need to
1307: # prefix the latex with the page headers stuff.
1308: #
1309: sub print_construction_sequence {
1310: my ($currentURL, $helper, %form, $LaTeXwidth) = @_;
1311: my $result;
1312: my $rndseed=time;
1313: if ($helper->{'VARS'}->{'curseed'}) {
1314: $rndseed=$helper->{'VARS'}->{'curseed'};
1315: }
1316: my $errtext=&LONCAPA::map::mapread($currentURL);
1317: #
1318: # These make this all support recursing for subsequences.
1319: #
1320: my @order = @LONCAPA::map::order;
1321: my @resources = @LONCAPA::map::resources;
1322: for (my $member=0;$member<=$#order;$member++) {
1323: $resources[$order[$member]]=~/^([^:]*):([^:]*):/;
1324: my $urlp=$2;
1325: if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm)$/) {
1326: my $texversion='';
1327: if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
1328: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1329: $form{'suppress_tries'}=$parmhash{'suppress_tries'};
1330: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1331: $form{'rndseed'}=$rndseed;
1332: $resources_printed .=$urlp.':';
1333: $texversion=&ssi_with_retries($urlp, $ssi_retry_count, %form);
1334: }
1335: if((($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1336: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) &&
1337: ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page)$/)) {
1338: # Don't permanently modify %$form...
1339: my %answerform = %form;
1340: $answerform{'grade_target'}='answer';
1341: $answerform{'answer_output_mode'}='tex';
1342: $answerform{'rndseed'}=$rndseed;
1343: $answerform{'problem_split'}=$parmhash{'problem_stream_switch'};
1344: if ($urlp=~/\/res\//) {$env{'request.state'}='published';}
1345: $resources_printed .= $urlp.':';
1346: my $answer=&ssi_with_retries($urlp, $ssi_retry_count, %answerform);
1347: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1348: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1349: } else {
1350: # If necessary, encapsulate answer in minipage:
1351:
1352: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1353: my $title = &Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'});
1354: $title = &Apache::lonxml::latex_special_symbols($title);
1355: my $body ='\vskip 0 mm \noindent\textbf{'.$title.'}\vskip 0 mm ';
1356: $body.=&path_to_problem($urlp,$LaTeXwidth);
1357: $body.='\vskip 1 mm '.$answer.'\end{document}';
1358: $body = &encapsulate_minipage($body);
1359: $texversion.=$body;
1360: }
1361: }
1362: $texversion = &latex_header_footer_remove($texversion);
1363:
1364: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1365: $texversion=&IndexCreation($texversion,$urlp);
1366: }
1367: if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
1368: $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
1369: }
1370: $result.=$texversion;
1371:
1372: } elsif ($urlp=~/\.(sequence|page)$/) {
1373:
1374: # header:
1375:
1376: $result.='\strut\newline\noindent Sequence/page '.$urlp.'\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent ';
1377:
1378: # IF sequence, recurse:
1379:
1380: if ($urlp =~ /\.sequence$/) {
1381: my $sequence_url = $urlp;
1382: my $domain = $env{'user.domain'}; # Constr. space only on local
1383: my $user = $env{'user.name'};
1384:
1385: $sequence_url =~ s/^\/res\/$domain/\/home/;
1386: $sequence_url =~ s/^(\/home\/$user)/$1\/public_html/;
1387: # $sequence_url =~ s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;
1388: $result .= &print_construction_sequence($sequence_url,
1389: $helper, %form,
1390: $LaTeXwidth);
1391: }
1392: }
1393: }
1394: if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\begin{document})/$1 \\fbox\{RANDOM SEED IS $rndseed\} /;}
1395: return $result;
1396: }
1397:
1398: sub output_data {
1399: my ($r,$helper,$rparmhash) = @_;
1400: my %parmhash = %$rparmhash;
1401: $ssi_error = 0; # This will be set nonzero by failing ssi's.
1402: $resources_printed = '';
1403: my $do_postprocessing = 1;
1404: my $js = <<ENDPART;
1405: <script type="text/javascript">
1406: var editbrowser;
1407: function openbrowser(formname,elementname,only,omit) {
1408: var url = '/res/?';
1409: if (editbrowser == null) {
1410: url += 'launch=1&';
1411: }
1412: url += 'catalogmode=interactive&';
1413: url += 'mode=parmset&';
1414: url += 'form=' + formname + '&';
1415: if (only != null) {
1416: url += 'only=' + only + '&';
1417: }
1418: if (omit != null) {
1419: url += 'omit=' + omit + '&';
1420: }
1421: url += 'element=' + elementname + '';
1422: var title = 'Browser';
1423: var options = 'scrollbars=1,resizable=1,menubar=0';
1424: options += ',width=700,height=600';
1425: editbrowser = open(url,title,options,'1');
1426: editbrowser.focus();
1427: }
1428: </script>
1429: ENDPART
1430:
1431:
1432:
1433: my $start_page = &Apache::loncommon::start_page('Preparing Printout',$js);
1434: my $msg = &mt('Please stand by while processing your print request, this may take some time ...');
1435:
1436: $r->print($start_page."\n<p>\n$msg\n</p>\n");
1437:
1438: # fetch the pagebreaks and store them in the course environment
1439: # The page breaks will be pulled into the hash %page_breaks which is
1440: # indexed by symb and contains 1's for each break.
1441:
1442: $env{'form.pagebreaks'} = $helper->{'VARS'}->{'FINISHPAGE'};
1443: $env{'form.lastprinttype'} = $helper->{'VARS'}->{'PRINT_TYPE'};
1444: &Apache::loncommon::store_course_settings('print',
1445: {'pagebreaks' => 'scalar',
1446: 'lastprinttype' => 'scalar'});
1447:
1448: my %page_breaks = &get_page_breaks($helper);
1449:
1450: my $format_from_helper = $helper->{'VARS'}->{'FORMAT'};
1451: my ($result,$selectionmade) = ('','');
1452: my $number_of_columns = 1; #used only for pages to determine the width of the cell
1453: my @temporary_array=split /\|/,$format_from_helper;
1454: my ($laystyle,$numberofcolumns,$papersize)=@temporary_array;
1455: if ($laystyle eq 'L') {
1456: $laystyle='album';
1457: } else {
1458: $laystyle='book';
1459: }
1460: my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$laystyle,$numberofcolumns);
1461: my $assignment = $env{'form.assignment'};
1462: my $LaTeXwidth=&recalcto_mm($textwidth);
1463: my @print_array=();
1464: my @student_names=();
1465:
1466:
1467: # Common settings for the %form has:
1468: # In some cases these settings get overriddent by specific cases, but the
1469: # settings are common enough to make it worthwhile factoring them out
1470: # here.
1471: #
1472: my %form;
1473: $form{'grade_target'} = 'tex';
1474: $form{'textwidth'} = &get_textwidth($helper, $LaTeXwidth);
1475:
1476: # If form.showallfoils is set, then request all foils be shown:
1477: # privilege will be enforced both by not allowing the
1478: # check box selecting this option to be presnt unless it's ok,
1479: # and by lonresponse's priv. check.
1480: # The if is here because lonresponse.pm only cares that
1481: # showallfoils is defined, not what the value is.
1482:
1483: if ($helper->{'VARS'}->{'showallfoils'} eq "1") {
1484: $form{'showallfoils'} = $helper->{'VARS'}->{'showallfoils'};
1485: }
1486:
1487: if ($helper->{'VARS'}->{'style_file'}=~/\w/) {
1488: &Apache::lonnet::appenv('construct.style' =>
1489: $helper->{'VARS'}->{'style_file'});
1490: } elsif ($env{'construct.style'}) {
1491: &Apache::lonnet::delenv('construct\\.style');
1492: }
1493:
1494:
1495: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'current_document') {
1496: #-- single document - problem, page, html, xml, ...
1497: my ($currentURL,$cleanURL);
1498:
1499: if ($helper->{'VARS'}->{'construction'} ne '1') {
1500: #prints published resource
1501: $currentURL=$helper->{'VARS'}->{'postdata'};
1502: $cleanURL=&Apache::lonenc::check_decrypt($currentURL);
1503: } else {
1504:
1505: #prints resource from the construction space
1506: $currentURL='/'.$helper->{'VARS'}->{'filename'};
1507: if ($currentURL=~/([^?]+)/) {$currentURL=$1;}
1508: $cleanURL=$currentURL;
1509: }
1510: $selectionmade = 1;
1511: if ($cleanURL!~m|^/adm/|
1512: && $cleanURL=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
1513: my $rndseed=time;
1514: my $texversion='';
1515: if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
1516: my %moreenv;
1517: $moreenv{'request.filename'}=$cleanURL;
1518: if ($helper->{'VARS'}->{'probstatus'} eq 'exam') {$form{'problemtype'}='exam';}
1519: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1520: $form{'suppress_tries'}=$parmhash{'suppress_tries'};
1521: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1522: $form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
1523: $form{'print_annotations'}=$helper->{'VARS'}->{'PRINT_ANNOTATIONS'};
1524: if (($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') ||
1525: ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes')) {
1526: $form{'problem_split'}='yes';
1527: }
1528: if ($helper->{'VARS'}->{'curseed'}) {
1529: $rndseed=$helper->{'VARS'}->{'curseed'};
1530: }
1531: $form{'rndseed'}=$rndseed;
1532: &Apache::lonnet::appenv(%moreenv);
1533:
1534: &Apache::lonxml::clear_problem_counter();
1535:
1536: $resources_printed .= $currentURL.':';
1537: $texversion.=&ssi_with_retries($currentURL,$ssi_retry_count, %form);
1538:
1539: # Add annotations if required:
1540:
1541: &Apache::lonxml::clear_problem_counter();
1542:
1543: &Apache::lonnet::delenv('request.filename');
1544: }
1545: # current document with answers.. no need to encap in minipage
1546: # since there's only one answer.
1547:
1548: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1549: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1550: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1551: $form{'grade_target'}='answer';
1552: $form{'answer_output_mode'}='tex';
1553: $form{'rndseed'}=$rndseed;
1554: if ($helper->{'VARS'}->{'probstatus'} eq 'exam') {
1555: $form{'problemtype'}='exam';
1556: }
1557: $resources_printed .= $currentURL.':';
1558: my $answer=&ssi_with_retries($currentURL,$ssi_retry_count, %form);
1559:
1560:
1561: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1562: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1563: } else {
1564: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1565: if ($helper->{'VARS'}->{'construction'} ne '1') {
1566: my $title = &Apache::lonnet::gettitle($helper->{'VARS'}->{'symb'});
1567: $title = &Apache::lonxml::latex_special_symbols($title);
1568: $texversion.='\vskip 0 mm \noindent\textbf{'.$title.'}\vskip 0 mm ';
1569: $texversion.=&path_to_problem($cleanURL,$LaTeXwidth);
1570: } else {
1571: $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
1572: my $URLpath=$cleanURL;
1573: $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
1574: $texversion.=&path_to_problem($URLpath,$LaTeXwidth);
1575: }
1576: $texversion.='\vskip 1 mm '.$answer.'\end{document}';
1577: }
1578:
1579:
1580:
1581:
1582: }
1583: # Print annotations.
1584:
1585:
1586: if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
1587: my $annotation .= &annotate($currentURL);
1588: $texversion =~ s/(\\keephidden{ENDOFPROBLEM})/$annotation$1/;
1589: }
1590:
1591:
1592: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1593: $texversion=&IndexCreation($texversion,$currentURL);
1594: }
1595: if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
1596: $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$currentURL| \\strut\\\\\\strut /;
1597:
1598: }
1599: $result .= $texversion;
1600: if ($currentURL=~m/\.page\s*$/) {
1601: ($result,$number_of_columns) = &page_cleanup($result);
1602: }
1603: } elsif ($cleanURL!~m|^/adm/|
1604: && $currentURL=~/\.sequence$/ && $helper->{'VARS'}->{'construction'} eq '1') {
1605: #printing content of sequence from the construction space
1606: $currentURL=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;
1607: $result .= &print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1608: $result .= &print_construction_sequence($currentURL, $helper, %form,
1609: $LaTeXwidth);
1610: $result .= '\end{document}';
1611: if (!($result =~ /\\begin\{document\}/)) {
1612: $result = &print_latex_header() . $result;
1613: }
1614: # End construction space sequence.
1615: } elsif ($cleanURL=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
1616: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1617: if ($currentURL=~/\/syllabus$/) {$currentURL=~s/\/res//;}
1618: $resources_printed .= $currentURL.':';
1619: my $texversion=&ssi_with_retries($currentURL, $ssi_retry_count, %form);
1620: if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
1621: my $annotation = &annotate($currentURL);
1622: $texversion =~ s/(\\end{document})/$annotation$1/;
1623: }
1624: $result .= $texversion;
1625: } elsif ($cleanURL =~/.tex$/) {
1626: # For this sort of print of a single LaTeX file,
1627: # We can just print the LaTeX file as it is uninterpreted in any way:
1628: #
1629:
1630: $result = &fetch_raw_resource($currentURL);
1631: if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
1632: my $annotation = &annotate($currentURL);
1633: $result =~ s/(\\end{document})/$annotation$1/;
1634: }
1635:
1636: $do_postprocessing = 0; # Don't massage the result.
1637:
1638: } else {
1639: $result.=&unsupported($currentURL,$helper->{'VARS'}->{'LATEX_TYPE'},
1640: $helper->{'VARS'}->{'symb'});
1641: }
1642: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') or
1643: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') or
1644: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') or
1645: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_resources') or # BUGBUG
1646: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences')) {
1647:
1648:
1649: #-- produce an output string
1650: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') {
1651: $selectionmade = 2;
1652: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') {
1653: $selectionmade = 3;
1654: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') {
1655: $selectionmade = 4;
1656: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_resources') { #BUGBUG
1657: $selectionmade = 4;
1658: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'select_sequences') {
1659: $selectionmade = 7;
1660: }
1661: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
1662: $form{'suppress_tries'}=$parmhash{'suppress_tries'};
1663: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1664: $form{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
1665: $form{'print_annotations'} = $helper->{'VARS'}->{'PRINT_ANNOTATIONS'};
1666: if (($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') ||
1667: ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') ) {
1668: $form{'problem_split'}='yes';
1669: }
1670: my $flag_latex_header_remove = 'NO';
1671: my $flag_page_in_sequence = 'NO';
1672: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
1673: my $prevassignment='';
1674:
1675: &Apache::lonxml::clear_problem_counter();
1676:
1677: my $pbreakresources = keys %page_breaks;
1678: for (my $i=0;$i<=$#master_seq;$i++) {
1679:
1680: # Note due to document structure, not allowed to put \newpage
1681: # prior to the first resource
1682:
1683: if (defined $page_breaks{$master_seq[$i]}) {
1684: if($i != 0) {
1685: $result.="\\newpage\n";
1686: }
1687: }
1688: my ($sequence,undef,$urlp)=&Apache::lonnet::decode_symb($master_seq[$i]);
1689: $urlp=&Apache::lonnet::clutter($urlp);
1690: $form{'symb'}=$master_seq[$i];
1691:
1692: my $assignment=&Apache::lonxml::latex_special_symbols(&Apache::lonnet::gettitle($sequence),'header'); #title of the assignment which contains this problem
1693: if ($selectionmade==7) {$helper->{VARS}->{'assignment'}=$assignment;}
1694: if ($i==0) {$prevassignment=$assignment;}
1695: my $texversion='';
1696: if ($urlp!~m|^/adm/|
1697: && $urlp=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
1698: $resources_printed .= $urlp.':';
1699: &Apache::lonxml::remember_problem_counter();
1700: $texversion.=&ssi_with_retries($urlp, $ssi_retry_count, %form);
1701: if ($urlp=~/\.page$/) {
1702: ($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
1703: if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;}
1704: $texversion =~ s/\\end{document}\d*/\\end{document}/;
1705: $flag_page_in_sequence = 'YES';
1706: }
1707:
1708: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
1709: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
1710: # Don't permanently pervert the %form hash
1711: my %answerform = %form;
1712: $answerform{'grade_target'}='answer';
1713: $answerform{'answer_output_mode'}='tex';
1714: $resources_printed .= $urlp.':';
1715:
1716: &Apache::lonxml::restore_problem_counter();
1717: my $answer=&ssi_with_retries($urlp, $ssi_retry_count, %answerform);
1718:
1719: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
1720: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
1721: } else {
1722: if ($urlp=~/\.(problem|exam|quiz|assess|survey|form|library)$/) {
1723: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
1724: my $title = &Apache::lonnet::gettitle($master_seq[$i]);
1725: $title = &Apache::lonxml::latex_special_symbols($title);
1726: my $body ='\vskip 0 mm \noindent\textbf{'.$title.'}\vskip 0 mm ';
1727: $body .= &path_to_problem ($urlp,$LaTeXwidth);
1728: $body .='\vskip 1 mm '.$answer;
1729: $body = &encapsulate_minipage($body);
1730: $texversion .= $body;
1731: } else {
1732: $texversion='';
1733: }
1734: }
1735:
1736: }
1737: if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
1738: my $annotation .= &annotate($urlp);
1739: $texversion =~ s/(\\keephidden{ENDOFPROBLEM})/$annotation$1/;
1740: }
1741:
1742: if ($flag_latex_header_remove ne 'NO') {
1743: $texversion = &latex_header_footer_remove($texversion);
1744: } else {
1745: $texversion =~ s/\\end{document}//;
1746: }
1747: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
1748: $texversion=&IndexCreation($texversion,$urlp);
1749: }
1750: if (($selectionmade == 4) and ($assignment ne $prevassignment)) {
1751: my $name = &get_name();
1752: my $courseidinfo = &get_course();
1753: if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
1754: $prevassignment=$assignment;
1755: my $header_text = $parmhash{'print_header_format'};
1756: $header_text = &format_page_header($textwidth, $header_text,
1757: $assignment,
1758: $courseidinfo,
1759: $name);
1760: if ($numberofcolumns eq '1') {
1761: $result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\lhead{'.$header_text.'}} \vskip 5 mm ';
1762: } else {
1763: $result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\fancyhead[LO]{'.$header_text.'}} \vskip 5 mm ';
1764: }
1765: }
1766: $result .= $texversion;
1767: $flag_latex_header_remove = 'YES';
1768: } elsif ($urlp=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
1769: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
1770: if ($urlp=~/\/syllabus$/) {$urlp=~s/\/res//;}
1771: $resources_printed .= $urlp.':';
1772: my $texversion=&ssi_with_retries($urlp, $ssi_retry_count, %form);
1773: if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
1774: my $annotation = &annotate($urlp);
1775: $texversion =~ s/(\\end{document)/$annotation$1/;
1776: }
1777:
1778: if ($flag_latex_header_remove ne 'NO') {
1779: $texversion = &latex_header_footer_remove($texversion);
1780: } else {
1781: $texversion =~ s/\\end{document}/\\vskip 0\.5mm\\noindent\\makebox\[\\textwidth\/\$number_of_columns\]\[b\]\{\\hrulefill\}/;
1782: }
1783: $result .= $texversion;
1784: $flag_latex_header_remove = 'YES';
1785: } else {
1786: $texversion=&unsupported($urlp,$helper->{'VARS'}->{'LATEX_TYPE'},
1787: $master_seq[$i]);
1788: if ($flag_latex_header_remove ne 'NO') {
1789: $texversion = &latex_header_footer_remove($texversion);
1790: } else {
1791: $texversion =~ s/\\end{document}//;
1792: }
1793: $result .= $texversion;
1794: $flag_latex_header_remove = 'YES';
1795: }
1796: if (&Apache::loncommon::connection_aborted($r)) { last; }
1797: }
1798: &Apache::lonxml::clear_problem_counter();
1799: if ($flag_page_in_sequence eq 'YES') {
1800: $result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;
1801: }
1802: $result .= '\end{document}';
1803: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') ||
1804: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students')){
1805:
1806:
1807: #-- prints assignments for whole class or for selected students
1808: my $type;
1809: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') {
1810: $selectionmade=5;
1811: $type='problems';
1812: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_students') {
1813: $selectionmade=8;
1814: $type='resources';
1815: }
1816: my @students=split /\|\|\|/, $helper->{'VARS'}->{'STUDENTS'};
1817: # The normal sort order is by section then by students within the
1818: # section. If the helper var student_sort is 1, then the user has elected
1819: # to override this and output the students by name.
1820: # Each element of the students array is of the form:
1821: # username:domain:section:last, first:status
1822: #
1823: # Note that student sort is not compatible with printing
1824: # 1 section per pdf...so that setting overrides.
1825: #
1826: if (($helper->{'VARS'}->{'student_sort'} eq 1) &&
1827: ($helper->{'VARS'}->{'SPLIT_PDFS'} ne "sections")) {
1828: @students = sort compare_names @students;
1829: }
1830: &adjust_number_to_print($helper);
1831:
1832: if ($helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq '0' ||
1833: $helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq 'all' ) {
1834: $helper->{'VARS'}->{'NUMBER_TO_PRINT'}=$#students+1;
1835: }
1836: # If we are splitting on section boundaries, we need
1837: # to remember that in split_on_sections and
1838: # print all of the students in the list.
1839: #
1840: my $split_on_sections = 0;
1841: if ($helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq 'section') {
1842: $split_on_sections = 1;
1843: $helper->{'VARS'}->{'NUMBER_TO_PRINT'} = $#students+1;
1844: }
1845: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
1846:
1847: #loop over students
1848: my $flag_latex_header_remove = 'NO';
1849: my %moreenv;
1850: $moreenv{'instructor_comments'}='hide';
1851: $moreenv{'textwidth'}=&get_textwidth($helper,$LaTeXwidth);
1852: $moreenv{'print_discussions'}=$helper->{'VARS'}->{'PRINT_DISCUSSIONS'};
1853: $moreenv{'print_annotations'} = $helper->{'VARS'}->{'PRINT_ANNOTATIONS'};
1854: $moreenv{'problem_split'} = $parmhash{'problem_stream_switch'};
1855: $moreenv{'suppress_tries'} = $parmhash{'suppress_tries'};
1856: if (($helper->{'VARS'}->{'PRINT_DISCUSSIONS'} eq 'yes') ||
1857: ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes')) {
1858: $moreenv{'problem_split'}='yes';
1859: }
1860: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1,'inline','75');
1861: my $student_counter=-1;
1862: my $i = 0;
1863: my $last_section = (split(/:/,$students[0]))[2];
1864: foreach my $person (@students) {
1865:
1866: my $duefile="/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1867: if (-e $duefile) {
1868: my $temp_file = Apache::File->new('>>'.$duefile);
1869: print $temp_file "1969\n";
1870: }
1871: $student_counter++;
1872: if ($split_on_sections) {
1873: my $this_section = (split(/:/,$person))[2];
1874: if ($this_section ne $last_section) {
1875: $i++;
1876: $last_section = $this_section;
1877: }
1878: } else {
1879: $i=int($student_counter/$helper->{'VARS'}{'NUMBER_TO_PRINT'});
1880: }
1881: my ($output,$fullname, $printed)=&print_resources($r,$helper,
1882: $person,$type,
1883: \%moreenv,\@master_seq,
1884: $flag_latex_header_remove,
1885: $LaTeXwidth);
1886: $resources_printed .= ":";
1887: $print_array[$i].=$output;
1888: $student_names[$i].=$person.':'.$fullname.'_END_';
1889: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,&mt('last student').' '.$fullname);
1890: $flag_latex_header_remove = 'YES';
1891: if (&Apache::loncommon::connection_aborted($r)) { last; }
1892: }
1893: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1894: $result .= $print_array[0].' \end{document}';
1895: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_anon') ||
1896: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'resources_for_anon') ) {
1897: my $cdom =$env{'course.'.$env{'request.course.id'}.'.domain'};
1898: my $cnum =$env{'course.'.$env{'request.course.id'}.'.num'};
1899: my $num_todo=$helper->{'VARS'}->{'NUMBER_TO_PRINT_TOTAL'};
1900: my $code_name=$helper->{'VARS'}->{'ANON_CODE_STORAGE_NAME'};
1901: my $old_name=$helper->{'VARS'}->{'REUSE_OLD_CODES'};
1902: my $single_code = $helper->{'VARS'}->{'SINGLE_CODE'};
1903: my $selected_code = $helper->{'VARS'}->{'CODE_SELECTED_FROM_LIST'};
1904:
1905: my $code_option=$helper->{'VARS'}->{'CODE_OPTION'};
1906: open(FH,$Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
1907: my ($code_type,$code_length)=('letter',6);
1908: foreach my $line (<FH>) {
1909: my ($name,$type,$length) = (split(/:/,$line))[0,2,4];
1910: if ($name eq $code_option) {
1911: $code_length=$length;
1912: if ($type eq 'number') { $code_type = 'number'; }
1913: }
1914: }
1915: my %moreenv = ('textwidth' => &get_textwidth($helper,$LaTeXwidth));
1916: $moreenv{'problem_split'} = $parmhash{'problem_stream_switch'};
1917: $moreenv{'instructor_comments'}='hide';
1918: my $seed=time+($$<<16)+($$);
1919: my @allcodes;
1920: if ($old_name) {
1921: my %result=&Apache::lonnet::get('CODEs',
1922: [$old_name,"type\0$old_name"],
1923: $cdom,$cnum);
1924: $code_type=$result{"type\0$old_name"};
1925: @allcodes=split(',',$result{$old_name});
1926: $num_todo=scalar(@allcodes);
1927: } elsif ($selected_code) { # Selection value is always numeric.
1928: $num_todo = 1;
1929: @allcodes = ($selected_code);
1930: } elsif ($single_code) {
1931:
1932: $num_todo = 1; # Unconditionally one code to do.
1933: # If an alpha code have to convert to numbers so it can be
1934: # converted back to letters again :-)
1935: #
1936: if ($code_type ne 'number') {
1937: $single_code = &letters_to_num($single_code);
1938: }
1939: @allcodes = ($single_code);
1940: } else {
1941: my %allcodes;
1942: srand($seed);
1943: for (my $i=0;$i<$num_todo;$i++) {
1944: $moreenv{'CODE'}=&get_CODE(\%allcodes,$i,$seed,$code_length,
1945: $code_type);
1946: }
1947: if ($code_name) {
1948: &Apache::lonnet::put('CODEs',
1949: {
1950: $code_name =>join(',',keys(%allcodes)),
1951: "type\0$code_name" => $code_type
1952: },
1953: $cdom,$cnum);
1954: }
1955: @allcodes=keys(%allcodes);
1956: }
1957: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
1958: my ($type) = split(/_/,$helper->{'VARS'}->{'PRINT_TYPE'});
1959: &adjust_number_to_print($helper);
1960: my $number_per_page=$helper->{'VARS'}->{'NUMBER_TO_PRINT'};
1961: if ($number_per_page eq '0' || $number_per_page eq 'all') {
1962: $number_per_page=$num_todo;
1963: }
1964: my $flag_latex_header_remove = 'NO';
1965: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$num_todo,'inline','75');
1966: my $count=0;
1967: foreach my $code (sort(@allcodes)) {
1968: my $file_num=int($count/$number_per_page);
1969: if ($code_type eq 'number') {
1970: $moreenv{'CODE'}=$code;
1971: } else {
1972: $moreenv{'CODE'}=&num_to_letters($code);
1973: }
1974: my ($output,$fullname, $printed)=
1975: &print_resources($r,$helper,'anonymous',$type,\%moreenv,
1976: \@master_seq,$flag_latex_header_remove,
1977: $LaTeXwidth);
1978: $resources_printed .= ":";
1979: $print_array[$file_num].=$output;
1980: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
1981: &mt('last assignment').' '.$fullname);
1982: $flag_latex_header_remove = 'YES';
1983: $count++;
1984: if (&Apache::loncommon::connection_aborted($r)) { last; }
1985: }
1986: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1987: $result .= $print_array[0].' \end{document}';
1988: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_from_directory') {
1989: #prints selected problems from the subdirectory
1990: $selectionmade = 6;
1991: my @list_of_files=split /\|\|\|/, $helper->{'VARS'}->{'FILES'};
1992: @list_of_files=sort @list_of_files;
1993: my $flag_latex_header_remove = 'NO';
1994: my $rndseed=time;
1995: if ($helper->{'VARS'}->{'curseed'}) {
1996: $rndseed=$helper->{'VARS'}->{'curseed'};
1997: }
1998: for (my $i=0;$i<=$#list_of_files;$i++) {
1999: my $urlp = $list_of_files[$i];
2000: $urlp=~s|//|/|;
2001: if ($urlp=~/\//) {
2002: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
2003: $form{'rndseed'}=$rndseed;
2004: if ($urlp =~ m|/home/([^/]+)/public_html|) {
2005: $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
2006: } else {
2007: $urlp =~ s|^$Apache::lonnet::perlvar{'lonDocRoot'}||;
2008: }
2009: $resources_printed .= $urlp.':';
2010: my $texversion=&ssi_with_retries($urlp, $ssi_retry_count, %form);
2011: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
2012: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
2013: # Don't permanently pervert %form:
2014: my %answerform = %form;
2015: $answerform{'grade_target'}='answer';
2016: $answerform{'answer_output_mode'}='tex';
2017: $answerform{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
2018: $answerform{'rndseed'}=$rndseed;
2019: $resources_printed .= $urlp.':';
2020: my $answer=&ssi_with_retries($urlp, $ssi_retry_count, %answerform);
2021: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
2022: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
2023: } else {
2024: $texversion=&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
2025: if ($helper->{'VARS'}->{'construction'} ne '1') {
2026: $texversion.='\vskip 0 mm \noindent ';
2027: $texversion.=&path_to_problem ($urlp,$LaTeXwidth);
2028: } else {
2029: $texversion.='\vskip 0 mm \noindent\textbf{Prints from construction space - there is no title.}\vskip 0 mm ';
2030: my $URLpath=$urlp;
2031: $URLpath=~s/~([^\/]+)/public_html\/$1\/$1/;
2032: $texversion.=&path_to_problem ($URLpath,$LaTeXwidth);
2033: }
2034: $texversion.='\vskip 1 mm '.$answer.'\end{document}';
2035: }
2036: }
2037: #this chunk is responsible for printing the path to problem
2038:
2039: my $newurlp=$urlp;
2040: if ($newurlp=~/~/) {$newurlp=~s|\/~([^\/]+)\/|\/home\/$1\/public_html\/|;}
2041: $newurlp=&path_to_problem($newurlp,$LaTeXwidth);
2042: $texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 $newurlp/;
2043: if ($flag_latex_header_remove ne 'NO') {
2044: $texversion = &latex_header_footer_remove($texversion);
2045: } else {
2046: $texversion =~ s/\\end{document}//;
2047: }
2048: if ($helper->{'VARS'}->{'TABLE_INDEX'} eq 'yes') {
2049: $texversion=&IndexCreation($texversion,$urlp);
2050: }
2051: if ($helper->{'VARS'}->{'CONSTR_RESOURSE_URL'} eq 'yes') {
2052: $texversion=~s/(\\addcontentsline\{toc\}\{subsection\}\{[^\}]*\})/$1 URL: \\verb|$urlp| \\strut\\\\\\strut /;
2053:
2054: }
2055: $result .= $texversion;
2056: }
2057: $flag_latex_header_remove = 'YES';
2058: }
2059: if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\typeout)/ RANDOM SEED IS $rndseed $1/;}
2060: $result .= '\end{document}';
2061: }
2062: #-------------------------------------------------------- corrections for the different page formats
2063:
2064: # Only post process if that has not been turned off e.g. by a raw latex resource.
2065:
2066: if ($do_postprocessing) {
2067: $result = &page_format_transformation($papersize,$laystyle,$numberofcolumns,$helper->{'VARS'}->{'PRINT_TYPE'},$result,$helper->{VARS}->{'assignment'},$helper->{'VARS'}->{'TABLE_CONTENTS'},$helper->{'VARS'}->{'TABLE_INDEX'},$selectionmade);
2068: $result = &latex_corrections($number_of_columns,$result,$selectionmade,
2069: $helper->{'VARS'}->{'ANSWER_TYPE'});
2070: #if ($numberofcolumns == 1) {
2071: $result =~ s/\\textwidth\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\textwidth= $helper->{'VARS'}->{'pagesize.width'} $helper->{'VARS'}->{'pagesize.widthunit'} /;
2072: $result =~ s/\\textheight\s*=?\s*-?\d*\.?\d*\s*(cm|mm|in)/\\textheight $helper->{'VARS'}->{'pagesize.height'} $helper->{'VARS'}->{'pagesize.heightunit'} /;
2073: $result =~ s/\\evensidemargin\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\evensidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
2074: $result =~ s/\\oddsidemargin\s*=\s*-?\d*\.?\d*\s*(cm|mm|in)/\\oddsidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
2075: #}
2076: }
2077:
2078: # Set URLback if this is a construction space print so we can provide
2079: # a link to the resource being edited.
2080: #
2081:
2082: my $URLback=''; #link to original document
2083: if ($helper->{'VARS'}->{'construction'} eq '1') {
2084: #prints resource from the construction space
2085: $URLback='/'.$helper->{'VARS'}->{'filename'};
2086: if ($URLback=~/([^?]+)/) {
2087: $URLback=$1;
2088: $URLback=~s|^/~|/priv/|;
2089: }
2090: }
2091:
2092:
2093: # If there's been an unrecoverable SSI error, report it to the user
2094: # otherwise, we can write the tex file.
2095: #
2096:
2097: if ($ssi_error) {
2098: my $end_page = &Apache::loncommon::end_page();
2099: $r->print(<<ERROR_END);
2100: <br />
2101: <h2>An unrecoverable error occured:</h2>
2102: <p>
2103: I was not able to render one of the print resources ($ssi_last_error_resource)
2104: due to an unrecoverable error communicating with a server:
2105: <br />
2106: $ssi_last_error;
2107: <br />
2108: </p>
2109: <p>
2110: I recommend that you try printing again later as this may mean the server was just
2111: temporarily unavailable, or is down for maintenance. If this error persists, then
2112: please contact your LonCAPA support folks for assistance and diagnosis.
2113: <br />
2114: <br />
2115: We apologize for the inconvenience.
2116: </p>
2117: $end_page
2118: ERROR_END
2119: } else {
2120:
2121: #-- writing .tex file in prtspool
2122: my $temp_file;
2123: my $identifier = &Apache::loncommon::get_cgi_id();
2124: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout_$identifier.tex";
2125: if (!($#print_array>0)) {
2126: unless ($temp_file = Apache::File->new('>'.$filename)) {
2127: $r->log_error("Couldn't open $filename for output $!");
2128: return SERVER_ERROR;
2129: }
2130: print $temp_file $result;
2131: my $begin=index($result,'\begin{document}',0);
2132: my $inc=substr($result,0,$begin+16);
2133: } else {
2134: my $begin=index($result,'\begin{document}',0);
2135: my $inc=substr($result,0,$begin+16);
2136: for (my $i=0;$i<=$#print_array;$i++) {
2137: if ($i==0) {
2138: $print_array[$i]=$result;
2139: } else {
2140: $print_array[$i].='\end{document}';
2141: $print_array[$i] =
2142: &latex_corrections($number_of_columns,$print_array[$i],
2143: $selectionmade,
2144: $helper->{'VARS'}->{'ANSWER_TYPE'});
2145:
2146: my $anobegin=index($print_array[$i],'\setcounter{page}',0);
2147: substr($print_array[$i],0,$anobegin)='';
2148: $print_array[$i]=$inc.$print_array[$i];
2149: }
2150: my $temp_file;
2151: my $newfilename=$filename;
2152: my $num=$i+1;
2153: $newfilename =~s/\.tex$//;
2154: $newfilename=sprintf("%s_%03d.tex",$newfilename, $num);
2155: unless ($temp_file = Apache::File->new('>'.$newfilename)) {
2156: $r->log_error("Couldn't open $newfilename for output $!");
2157: return SERVER_ERROR;
2158: }
2159: print $temp_file $print_array[$i];
2160: }
2161:
2162: }
2163: my $student_names='';
2164: if ($#print_array>0) {
2165: for (my $i=0;$i<=$#print_array;$i++) {
2166: $student_names.=$student_names[$i].'_ENDPERSON_';
2167: }
2168: } else {
2169: if ($#student_names>-1) {
2170: $student_names=$student_names[0].'_ENDPERSON_';
2171: } else {
2172: my $fullname = &get_name($env{'user.name'},$env{'user.domain'});
2173: $student_names=join(':',$env{'user.name'},$env{'user.domain'},
2174: $env{'request.course.sec'},$fullname).
2175: '_ENDPERSON_'.'_END_';
2176: }
2177: }
2178:
2179: # logic for now is too complex to trace if this has been defined
2180: # yet.
2181: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2182: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2183: &Apache::lonnet::appenv('cgi.'.$identifier.'.file' => $filename,
2184: 'cgi.'.$identifier.'.layout' => $laystyle,
2185: 'cgi.'.$identifier.'.numcol' => $numberofcolumns,
2186: 'cgi.'.$identifier.'.paper' => $papersize,
2187: 'cgi.'.$identifier.'.selection' => $selectionmade,
2188: 'cgi.'.$identifier.'.tableofcontents' => $helper->{'VARS'}->{'TABLE_CONTENTS'},
2189: 'cgi.'.$identifier.'.tableofindex' => $helper->{'VARS'}->{'TABLE_INDEX'},
2190: 'cgi.'.$identifier.'.role' => $perm{'pav'},
2191: 'cgi.'.$identifier.'.numberoffiles' => $#print_array,
2192: 'cgi.'.$identifier.'.studentnames' => $student_names,
2193: 'cgi.'.$identifier.'.backref' => $URLback,);
2194: &Apache::lonnet::appenv("cgi.$identifier.user" => $env{'user.name'},
2195: "cgi.$identifier.domain" => $env{'user.domain'},
2196: "cgi.$identifier.courseid" => $cnum,
2197: "cgi.$identifier.coursedom" => $cdom,
2198: "cgi.$identifier.resources" => $resources_printed);
2199:
2200: my $end_page = &Apache::loncommon::end_page();
2201: $r->print(<<FINALEND);
2202: <br />
2203: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$identifier" />
2204: <a href="/cgi-bin/printout.pl?$identifier">Continue</a>
2205: $end_page
2206: FINALEND
2207: } # endif ssi errors.
2208: }
2209:
2210:
2211: sub get_CODE {
2212: my ($all_codes,$num,$seed,$size,$type)=@_;
2213: my $max='1'.'0'x$size;
2214: my $newcode;
2215: while(1) {
2216: $newcode=sprintf("%0".$size."d",int(rand($max)));
2217: if (!exists($$all_codes{$newcode})) {
2218: $$all_codes{$newcode}=1;
2219: if ($type eq 'number' ) {
2220: return $newcode;
2221: } else {
2222: return &num_to_letters($newcode);
2223: }
2224: }
2225: }
2226: }
2227:
2228: sub print_resources {
2229: my ($r,$helper,$person,$type,$moreenv,$master_seq,$remove_latex_header,
2230: $LaTeXwidth)=@_;
2231: my $current_output = '';
2232: my $printed = '';
2233: my ($username,$userdomain,$usersection) = split /:/,$person;
2234: my $fullname = &get_name($username,$userdomain);
2235: my $namepostfix = "\\\\"; # Both anon and not anon should get the same vspace.
2236: if ($person =~ 'anon') {
2237: $namepostfix .="Name: ";
2238: $fullname = "CODE - ".$moreenv->{'CODE'};
2239: }
2240: # Fullname may have special latex characters that need \ prefixing:
2241: #
2242:
2243: my $i = 0;
2244: #goes through all resources, checks if they are available for
2245: #current student, and produces output
2246:
2247: &Apache::lonxml::clear_problem_counter();
2248: my %page_breaks = &get_page_breaks($helper);
2249: my $columns_in_format = (split(/\|/,$helper->{'VARS'}->{'FORMAT'}))[1];
2250: #
2251: # end each student with a
2252: # Special that allows the post processor to even out the page
2253: # counts later. Nasty problem this... it would be really
2254: # nice to put the special in as a postscript comment
2255: # e.g. \special{ps:\ENDOFSTUDENTSTAMP} unfortunately,
2256: # The special gets passed the \ and dvips puts it in the output file
2257: # so we will just rely on prntout.pl to strip ENDOFSTUDENTSTAMP from the
2258: # postscript. Each ENDOFSTUDENTSTAMP will go on a line by itself.
2259: #
2260:
2261:
2262: foreach my $curresline (@{$master_seq}) {
2263: if (defined $page_breaks{$curresline}) {
2264: if($i != 0) {
2265: $current_output.= "\\newpage\n";
2266: }
2267: }
2268: $i++;
2269:
2270: if ( !($type eq 'problems' &&
2271: ($curresline!~ m/\.(problem|exam|quiz|assess|survey|form|library)$/)) ) {
2272: my ($map,$id,$res_url) = &Apache::lonnet::decode_symb($curresline);
2273: if (&Apache::lonnet::allowed('bre',$res_url)) {
2274: if ($res_url!~m|^ext/|
2275: && $res_url=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
2276: $printed .= $curresline.':';
2277:
2278: &Apache::lonxml::remember_problem_counter();
2279:
2280: my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,$env{'request.course.id'},'tex',$moreenv);
2281:
2282: if(($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') ||
2283: ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'only')) {
2284: # Use a copy of the hash so we don't pervert it on future loop passes.
2285: my %answerenv = %{$moreenv};
2286: $answerenv{'answer_output_mode'}='tex';
2287: $answerenv{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
2288:
2289: &Apache::lonxml::restore_problem_counter();
2290:
2291: my $ansrendered = &Apache::loncommon::get_student_answers($curresline,$username,$userdomain,$env{'request.course.id'},%answerenv);
2292:
2293: if ($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
2294: $rendered=~s/(\\keephidden{ENDOFPROBLEM})/$ansrendered$1/;
2295: } else {
2296:
2297:
2298: my $header =&print_latex_header($helper->{'VARS'}->{'LATEX_TYPE'});
2299: my $title = &Apache::lonnet::gettitle($curresline);
2300: $title = &Apache::lonxml::latex_special_symbols($title);
2301: my $body ='\vskip 0 mm \noindent\textbf{'.$title.'}\vskip 0 mm ';
2302: $body .=&path_to_problem($res_url,$LaTeXwidth);
2303: $body .='\vskip 1 mm '.$ansrendered;
2304: $body = &encapsulate_minipage($body);
2305: $rendered = $header.$body;
2306: }
2307: }
2308:
2309: if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
2310: my $url = &Apache::lonnet::clutter($res_url);
2311: my $annotation = &annotate($url);
2312: $rendered =~ s/(\\keephidden{ENDOFPROBLEM})/$annotation$1/;
2313: }
2314: if ($remove_latex_header eq 'YES') {
2315: $rendered = &latex_header_footer_remove($rendered);
2316: } else {
2317: $rendered =~ s/\\end{document}//;
2318: }
2319: $current_output .= $rendered;
2320: } elsif ($res_url=~/\/(smppg|syllabus|aboutme|bulletinboard)$/) {
2321: $printed .= $curresline.':';
2322: my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,$env{'request.course.id'},'tex',$moreenv);
2323: if ($helper->{'VARS'}->{'PRINT_ANNOTATIONS'} eq 'yes') {
2324: my $url = &Apache::lonnet::clutter($res_url);
2325: my $annotation = &annotate($url);
2326: $annotation =~ s/(\\end{document})/$annotation$1/;
2327: }
2328: if ($remove_latex_header eq 'YES') {
2329: $rendered = &latex_header_footer_remove($rendered);
2330: } else {
2331: $rendered =~ s/\\end{document}//;
2332: }
2333: $current_output .= $rendered.'\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\strut \vskip 0 mm \strut ';
2334:
2335: } else {
2336: my $rendered = &unsupported($res_url,$helper->{'VARS'}->{'LATEX_TYPE'},$curresline);
2337: if ($remove_latex_header ne 'NO') {
2338: $rendered = &latex_header_footer_remove($rendered);
2339: } else {
2340: $rendered =~ s/\\end{document}//;
2341: }
2342: $current_output .= $rendered;
2343: }
2344: }
2345: $remove_latex_header = 'YES';
2346: }
2347: if (&Apache::loncommon::connection_aborted($r)) { last; }
2348: }
2349: my $courseidinfo = &get_course();
2350: if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
2351: if ($usersection ne '') {$courseidinfo.=' - Sec. '.$usersection}
2352: my $currentassignment=&Apache::lonxml::latex_special_symbols($helper->{VARS}->{'assignment'},'header');
2353: my $header_line =
2354: &format_page_header($LaTeXwidth, $parmhash{'print_header_format'},
2355: $currentassignment, $courseidinfo, $fullname);
2356: my $header_start = ($columns_in_format == 1) ? '\lhead'
2357: : '\fancyhead[LO]';
2358: $header_line = $header_start.'{'.$header_line.'}';
2359:
2360: if ($current_output=~/\\documentclass/) {
2361: $current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\parbox{\\minipagewidth}{\\noindent$header_line$namepostfix}\\vskip 5 mm /;
2362: } else {
2363: my $blankpages =
2364: '\clearpage\strut\clearpage'x$helper->{'VARS'}->{'EMPTY_PAGES'};
2365:
2366: $current_output = '\strut\vspace*{-6 mm}\\newline'.
2367: ©right_line().' \newpage '.$blankpages.$end_of_student.
2368: '\setcounter{page}{1}\noindent\parbox{\minipagewidth}{\noindent'.
2369: $header_line.$namepostfix.'} \vskip 5 mm '.$current_output;
2370: }
2371: #
2372: # Close the student bracketing.
2373: #
2374: return ($current_output,$fullname, $printed);
2375:
2376: }
2377:
2378: sub handler {
2379:
2380: my $r = shift;
2381:
2382: &init_perm();
2383:
2384:
2385:
2386: my $helper = printHelper($r);
2387: if (!ref($helper)) {
2388: return $helper;
2389: }
2390:
2391:
2392: %parmhash=&Apache::lonnet::coursedescription($env{'request.course.id'});
2393:
2394:
2395:
2396:
2397: # If a figure conversion queue file exists for this user.domain
2398: # we delete it since it can only be bad (if it were good, printout.pl
2399: # would have deleted it the last time around.
2400:
2401: my $conversion_queuefile = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
2402: if(-e $conversion_queuefile) {
2403: unlink $conversion_queuefile;
2404: }
2405:
2406:
2407: &output_data($r,$helper,\%parmhash);
2408: return OK;
2409: }
2410:
2411: use Apache::lonhelper;
2412:
2413: sub addMessage {
2414: my $text = shift;
2415: my $paramHash = Apache::lonhelper::getParamHash();
2416: $paramHash->{MESSAGE_TEXT} = $text;
2417: Apache::lonhelper::message->new();
2418: }
2419:
2420:
2421:
2422: sub init_perm {
2423: undef(%perm);
2424: $perm{'pav'}=&Apache::lonnet::allowed('pav',$env{'request.course.id'});
2425: if (!$perm{'pav'}) {
2426: $perm{'pav'}=&Apache::lonnet::allowed('pav',
2427: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
2428: }
2429: $perm{'pfo'}=&Apache::lonnet::allowed('pfo',$env{'request.course.id'});
2430: if (!$perm{'pfo'}) {
2431: $perm{'pfo'}=&Apache::lonnet::allowed('pfo',
2432: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
2433: }
2434: }
2435:
2436: sub get_randomly_ordered_warning {
2437: my ($helper,$map) = @_;
2438:
2439: my $message;
2440:
2441: my $postdata = $env{'form.postdata'} || $helper->{VARS}{'postdata'};
2442: my $navmap = Apache::lonnavmaps::navmap->new();
2443: my $res = $navmap->getResourceByUrl($map);
2444: if ($res) {
2445: my $func =
2446: sub { return ($_[0]->is_map() && $_[0]->randomorder); };
2447: my @matches = $navmap->retrieveResources($res, $func,1,1,1);
2448: if (@matches) {
2449: $message = "Some of the items below are in folders set to be randomly ordered. However, when printing the contents of these folders, they will be printed in the original order for all students, not the randomized order.";
2450: }
2451: }
2452: if ($message) {
2453: return '<message type="warning">'.$message.'</message>';
2454: }
2455: return;
2456: }
2457:
2458: sub printHelper {
2459: my $r = shift;
2460:
2461: if ($r->header_only) {
2462: if ($env{'browser.mathml'}) {
2463: &Apache::loncommon::content_type($r,'text/xml');
2464: } else {
2465: &Apache::loncommon::content_type($r,'text/html');
2466: }
2467: $r->send_http_header;
2468: return OK;
2469: }
2470:
2471: # Send header, nocache
2472: if ($env{'browser.mathml'}) {
2473: &Apache::loncommon::content_type($r,'text/xml');
2474: } else {
2475: &Apache::loncommon::content_type($r,'text/html');
2476: }
2477: &Apache::loncommon::no_cache($r);
2478: $r->send_http_header;
2479: $r->rflush();
2480:
2481: # Unfortunately, this helper is so complicated we have to
2482: # write it by hand
2483:
2484: Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
2485:
2486: my $helper = Apache::lonhelper::helper->new("Printing Helper");
2487: $helper->declareVar('symb');
2488: $helper->declareVar('postdata');
2489: $helper->declareVar('curseed');
2490: $helper->declareVar('probstatus');
2491: $helper->declareVar('filename');
2492: $helper->declareVar('construction');
2493: $helper->declareVar('assignment');
2494: $helper->declareVar('style_file');
2495: $helper->declareVar('student_sort');
2496: $helper->declareVar('FINISHPAGE');
2497: $helper->declareVar('PRINT_TYPE');
2498: $helper->declareVar("showallfoils");
2499: $helper->declareVar("STUDENTS");
2500:
2501: # The page breaks can get loaded initially from the course environment:
2502: # But we only do this in the initial state so that they are allowed to change.
2503: #
2504:
2505: # $helper->{VARS}->{FINISHPAGE} = '';
2506:
2507: &Apache::loncommon::restore_course_settings('print',
2508: {'pagebreaks' => 'scalar',
2509: 'lastprinttype' => 'scalar'});
2510:
2511: # This will persistently load in the data we want from the
2512: # very first screen.
2513:
2514: if($helper->{VARS}->{PRINT_TYPE} eq $env{'form.lastprinttype'}) {
2515: if (!defined ($env{"form.CURRENT_STATE"})) {
2516:
2517: $helper->{VARS}->{FINISHPAGE} = $env{'form.pagebreaks'};
2518: } else {
2519: my $state = $env{"form.CURRENT_STATE"};
2520: if ($state eq "START") {
2521: $helper->{VARS}->{FINISHPAGE} = $env{'form.pagebreaks'};
2522: }
2523: }
2524:
2525: }
2526:
2527:
2528: # Detect whether we're coming from construction space
2529: if ($env{'form.postdata'}=~/^(?:http:\/\/[^\/]+\/|\/|)\~([^\/]+)\/(.*)$/) {
2530: $helper->{VARS}->{'filename'} = "~$1/$2";
2531: $helper->{VARS}->{'construction'} = 1;
2532: } else {
2533: if ($env{'form.postdata'}) {
2534: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($env{'form.postdata'});
2535: if ( $helper->{VARS}->{'symb'} eq '') {
2536: $helper->{VARS}->{'postdata'} = $env{'form.postdata'};
2537: }
2538: }
2539: if ($env{'form.symb'}) {
2540: $helper->{VARS}->{'symb'} = $env{'form.symb'};
2541: }
2542: if ($env{'form.url'}) {
2543: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
2544: }
2545:
2546: }
2547:
2548: if ($env{'form.symb'}) {
2549: $helper->{VARS}->{'symb'} = $env{'form.symb'};
2550: }
2551: if ($env{'form.url'}) {
2552: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
2553:
2554: }
2555: $helper->{VARS}->{'symb'}=
2556: &Apache::lonenc::check_encrypt($helper->{VARS}->{'symb'});
2557: my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu($helper);
2558: if ($sequenceTitle ne '') {$helper->{VARS}->{'assignment'}=$sequenceTitle;}
2559:
2560:
2561: # Extract map
2562: my $symb = $helper->{VARS}->{'symb'};
2563: my ($map, $id, $url);
2564: my $subdir;
2565: my $is_published=0; # True when printing from resource space.
2566:
2567: # Get the resource name from construction space
2568: if ($helper->{VARS}->{'construction'}) {
2569: $resourceTitle = substr($helper->{VARS}->{'filename'},
2570: rindex($helper->{VARS}->{'filename'}, '/')+1);
2571: $subdir = substr($helper->{VARS}->{'filename'},
2572: 0, rindex($helper->{VARS}->{'filename'}, '/') + 1);
2573: } else {
2574: if ($symb ne '') {
2575: ($map, $id, $url) = &Apache::lonnet::decode_symb($symb);
2576: $helper->{VARS}->{'postdata'} =
2577: &Apache::lonenc::check_encrypt(&Apache::lonnet::clutter($url));
2578: } else {
2579: $url = $helper->{VARS}->{'postdata'};
2580: $is_published=1; # From resource space.
2581: }
2582: $url = &Apache::lonnet::clutter($url);
2583:
2584: if (!$resourceTitle) { # if the resource doesn't have a title, use the filename
2585: my $postdata = $helper->{VARS}->{'postdata'};
2586: $resourceTitle = substr($postdata, rindex($postdata, '/') + 1);
2587: }
2588: $subdir = &Apache::lonnet::filelocation("", $url);
2589: }
2590: if (!$helper->{VARS}->{'curseed'} && $env{'form.curseed'}) {
2591: $helper->{VARS}->{'curseed'}=$env{'form.curseed'};
2592: }
2593: if (!$helper->{VARS}->{'probstatus'} && $env{'form.problemtype'}) {
2594: $helper->{VARS}->{'probstatus'}=$env{'form.problemstatus'};
2595: }
2596:
2597: my $userCanSeeHidden = Apache::lonnavmaps::advancedUser();
2598:
2599: Apache::lonhelper::registerHelperTags();
2600:
2601: # "Delete everything after the last slash."
2602: $subdir =~ s|/[^/]+$||;
2603:
2604: # What can be printed is a very dynamic decision based on
2605: # lots of factors. So we need to dynamically build this list.
2606: # To prevent security leaks, states are only added to the wizard
2607: # if they can be reached, which ensures manipulating the form input
2608: # won't allow anyone to reach states they shouldn't have permission
2609: # to reach.
2610:
2611: # printChoices is tracking the kind of printing the user can
2612: # do, and will be used in a choices construction later.
2613: # In the meantime we will be adding states and elements to
2614: # the helper by hand.
2615: my $printChoices = [];
2616: my $paramHash;
2617:
2618: if ($resourceTitle) {
2619: push @{$printChoices}, ["<b><i>$resourceTitle</i></b> (".&mt('the resource you just saw on the screen').")", 'current_document', 'PAGESIZE'];
2620: }
2621:
2622: # Useful filter strings
2623: my $isProblem = '($res->is_problem()||$res->contains_problem) ';
2624: $isProblem .= ' && !$res->randomout()' if !$userCanSeeHidden;
2625: my $isProblemOrMap = '$res->is_problem() || $res->contains_problem() || $res->is_sequence()';
2626: my $isNotMap = '!$res->is_sequence()';
2627: $isNotMap .= ' && !$res->randomout()' if !$userCanSeeHidden;
2628: my $isMap = '$res->is_map()';
2629: my $symbFilter = '$res->shown_symb()';
2630: my $urlValue = '$res->link()';
2631:
2632: $helper->declareVar('SEQUENCE');
2633:
2634: # If we're in a sequence...
2635:
2636: my $start_new_option;
2637: if ($perm{'pav'}) {
2638: $start_new_option =
2639: "<option text='".&mt('Start new page<br />before selected').
2640: "' variable='FINISHPAGE' />";
2641: }
2642:
2643: if (($helper->{'VARS'}->{'construction'} ne '1' ) &&
2644:
2645: $helper->{VARS}->{'postdata'} &&
2646: $helper->{VARS}->{'assignment'}) {
2647: # Allow problems from sequence
2648: push @{$printChoices}, [&mt('Selected <b>Problems</b> in folder <b><i>[_1]</i></b>',$sequenceTitle), 'map_problems', 'CHOOSE_PROBLEMS'];
2649: # Allow all resources from sequence
2650: push @{$printChoices}, [&mt('Selected <b>Resources</b> in folder <b><i>[_1]</i></b>',$sequenceTitle), 'map_problems_pages', 'CHOOSE_PROBLEMS_HTML'];
2651:
2652: my $helperFragment = <<HELPERFRAGMENT;
2653: <state name="CHOOSE_PROBLEMS" title="Select Problem(s) to print">
2654: <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
2655: closeallpages="1">
2656: <nextstate>PAGESIZE</nextstate>
2657: <filterfunc>return $isProblem;</filterfunc>
2658: <mapurl>$map</mapurl>
2659: <valuefunc>return $symbFilter;</valuefunc>
2660: $start_new_option
2661: </resource>
2662: </state>
2663:
2664: <state name="CHOOSE_PROBLEMS_HTML" title="Select Resource(s) to print">
2665: <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
2666: closeallpages="1">
2667: <nextstate>PAGESIZE</nextstate>
2668: <filterfunc>return $isNotMap;</filterfunc>
2669: <mapurl>$map</mapurl>
2670: <valuefunc>return $symbFilter;</valuefunc>
2671: $start_new_option
2672: </resource>
2673: </state>
2674: HELPERFRAGMENT
2675:
2676: &Apache::lonxml::xmlparse($r, 'helper', $helperFragment);
2677: }
2678:
2679: # If the user has pfo (print for otheres) allow them to print all
2680: # problems and resources in the entier course, optionally for selected students
2681: if ($perm{'pfo'} && !$is_published &&
2682: ($helper->{VARS}->{'postdata'}=~/\/res\// || $helper->{VARS}->{'postdata'}=~/\/(syllabus|smppg|aboutme|bulletinboard)$/)) {
2683:
2684: push @{$printChoices}, [&mtn('Selected <b>Problems</b> from <b>entire course</b>'), 'all_problems', 'ALL_PROBLEMS'];
2685: push @{$printChoices}, [&mtn('Selected <b>Resources</b> from <b>entire course</b>'), 'all_resources', 'ALL_RESOURCES'];
2686: &Apache::lonxml::xmlparse($r, 'helper', <<ALL_PROBLEMS);
2687: <state name="ALL_PROBLEMS" title="Select Problem(s) to print">
2688: <resource variable="RESOURCES" toponly='0' multichoice="1"
2689: suppressEmptySequences='0' addstatus="1" closeallpages="1">
2690: <nextstate>PAGESIZE</nextstate>
2691: <filterfunc>return $isProblemOrMap;</filterfunc>
2692: <choicefunc>return $isNotMap;</choicefunc>
2693: <valuefunc>return $symbFilter;</valuefunc>
2694: $start_new_option
2695: </resource>
2696: </state>
2697: <state name="ALL_RESOURCES" title="Select Resource(s) to print">
2698: <resource variable="RESOURCES" toponly='0' multichoice='1'
2699: suppressEmptySequences='0' addstatus='1' closeallpages='1'>
2700: <nextstate>PAGESIZE</nextstate>
2701: <filterfunc>return $isNotMap; </filterfunc>
2702: <valuefunc>return $symbFilter;</valuefunc>
2703: $start_new_option
2704: </resource>
2705: </state>
2706: ALL_PROBLEMS
2707:
2708: if ($helper->{VARS}->{'assignment'}) {
2709: push @{$printChoices}, [&mt("Selected <b>Problems</b> from folder <b><i>[_1]</i></b> for <b>selected people</b>",$sequenceTitle), 'problems_for_students', 'CHOOSE_STUDENTS'];
2710: push @{$printChoices}, [&mt("Selected <b>Problems</b> from folder <b><i>[_1]</i></b> for <b>CODEd assignments</b>",$sequenceTitle), 'problems_for_anon', 'CHOOSE_ANON1'];
2711: }
2712:
2713: my $randomly_ordered_warning =
2714: &get_randomly_ordered_warning($helper,$map);
2715:
2716: # resource_selector will hold a few states that:
2717: # - Allow resources to be selected for printing.
2718: # - Determine pagination between assignments.
2719: # - Determine how many assignments should be bundled into a single PDF.
2720: # TODO:
2721: # Probably good to do things like separate this up into several vars, each
2722: # with one state, and use REGEXPs at inclusion time to set state names
2723: # and next states for better mix and match capability
2724: #
2725: my $resource_selector=<<RESOURCE_SELECTOR;
2726: <state name="SELECT_PROBLEMS" title="Select resources to print">
2727: $randomly_ordered_warning
2728:
2729: <nextstate>PRINT_FORMATTING</nextstate>
2730: <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
2731: <resource variable="RESOURCES" multichoice="1" addstatus="1"
2732: closeallpages="1">
2733: <filterfunc>return $isProblem;</filterfunc>
2734: <mapurl>$map</mapurl>
2735: <valuefunc>return $symbFilter;</valuefunc>
2736: $start_new_option
2737: </resource>
2738: </state>
2739: <state name="PRINT_FORMATTING" title="How should results be printed?">
2740: <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
2741: <choices variable="EMPTY_PAGES">
2742: <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
2743: <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
2744: <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
2745: <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
2746: </choices>
2747: <nextstate>PAGESIZE</nextstate>
2748: <message><hr width='33%' /><b>How do you want assignments split into PDF files? </b></message>
2749: <choices variable="SPLIT_PDFS">
2750: <choice computer="all">All assignments in a single PDF file</choice>
2751: <choice computer="sections">Each PDF contains exactly one section</choice>
2752: <choice computer="oneper">Each PDF contains exactly one assignment</choice>
2753: <choice computer="usenumber" relatedvalue="NUMBER_TO_PRINT">
2754: Specify the number of assignments per PDF:</choice>
2755: </choices>
2756: </state>
2757: RESOURCE_SELECTOR
2758:
2759: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
2760: <state name="CHOOSE_STUDENTS" title="Select Students and Resources">
2761: <message><b>Select sorting order of printout</b> </message>
2762: <choices variable='student_sort'>
2763: <choice computer='0'>Sort by section then student</choice>
2764: <choice computer='1'>Sort by students across sections.</choice>
2765: </choices>
2766: <message><br /><hr /><br /> </message>
2767: <student multichoice='1' variable="STUDENTS" nextstate="SELECT_PROBLEMS" coursepersonnel="1"/>
2768: </state>
2769: $resource_selector
2770: CHOOSE_STUDENTS
2771:
2772: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2773: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2774: my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
2775: my $namechoice='<choice></choice>';
2776: foreach my $name (sort {uc($a) cmp uc($b)} @names) {
2777: if ($name =~ /^error: 2 /) { next; }
2778: if ($name =~ /^type\0/) { next; }
2779: $namechoice.='<choice computer="'.$name.'">'.$name.'</choice>';
2780: }
2781:
2782:
2783: my %code_values;
2784: my %codes_to_print;
2785: foreach my $key (@names) {
2786: %code_values = &Apache::grades::get_codes($key, $cdom, $cnum);
2787: foreach my $key (keys(%code_values)) {
2788: $codes_to_print{$key} = 1;
2789: }
2790: }
2791:
2792: my $code_selection;
2793: foreach my $code (sort {uc($a) cmp uc($b)} (keys(%codes_to_print))) {
2794: my $choice = $code;
2795: if ($code =~ /^[A-Z]+$/) { # Alpha code
2796: $choice = &letters_to_num($code);
2797: }
2798: push(@{$helper->{DATA}{ALL_CODE_CHOICES}},[$code,$choice]);
2799: }
2800: if (%codes_to_print) {
2801: $code_selection .='
2802: <message><b>Choose single CODE from list:</b></message>
2803: <message></td><td></message>
2804: <dropdown variable="CODE_SELECTED_FROM_LIST" multichoice="0" allowempty="0">
2805: <choice></choice>
2806: <exec>
2807: push(@{$state->{CHOICES}},@{$helper->{DATA}{ALL_CODE_CHOICES}});
2808: </exec>
2809: </dropdown>
2810: <message></td></tr><tr><td></message>
2811: '.$/;
2812:
2813: }
2814:
2815:
2816: open(FH,$Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
2817: my $codechoice='';
2818: foreach my $line (<FH>) {
2819: my ($name,$description,$code_type,$code_length)=
2820: (split(/:/,$line))[0,1,2,4];
2821: if ($code_length > 0 &&
2822: $code_type =~/^(letter|number|-1)/) {
2823: $codechoice.='<choice computer="'.$name.'">'.$description.'</choice>';
2824: }
2825: }
2826: if ($codechoice eq '') {
2827: $codechoice='<choice computer="default">Default</choice>';
2828: }
2829: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_ANON1);
2830: <state name="CHOOSE_ANON1" title="Specify CODEd Assignments">
2831: <nextstate>SELECT_PROBLEMS</nextstate>
2832: <message><h4>Fill out one of the forms below</h4></message>
2833: <message><br /><hr /> <br /></message>
2834: <message><h3>Generate new CODEd Assignments</h3></message>
2835: <message><table><tr><td><b>Number of CODEd assignments to print:</b></td><td></message>
2836: <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5">
2837: <validator>
2838: if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) < 1) &&
2839: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2840: !\$helper->{'VARS'}{'SINGLE_CODE'} &&
2841: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2842: return "You need to specify the number of assignments to print";
2843: }
2844: return undef;
2845: </validator>
2846: </string>
2847: <message></td></tr><tr><td></message>
2848: <message><b>Names to save the CODEs under for later:</b></message>
2849: <message></td><td></message>
2850: <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
2851: <message></td></tr><tr><td></message>
2852: <message><b>Bubble sheet type:</b></message>
2853: <message></td><td></message>
2854: <dropdown variable="CODE_OPTION" multichoice="0" allowempty="0">
2855: $codechoice
2856: </dropdown>
2857: <message></td></tr><tr><td colspan="2"></td></tr><tr><td></message>
2858: <message></td></tr><tr><td></table></message>
2859: <message><br /><hr /><h3>Print a Specific CODE </h3><br /><table></message>
2860: <message><tr><td><b>Enter a CODE to print:</b></td><td></message>
2861: <string variable="SINGLE_CODE" size="10">
2862: <validator>
2863: if(!\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'} &&
2864: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2865: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2866: return &Apache::lonprintout::is_code_valid(\$helper->{'VARS'}{'SINGLE_CODE'},
2867: \$helper->{'VARS'}{'CODE_OPTION'});
2868: } else {
2869: return undef; # Other forces control us.
2870: }
2871: </validator>
2872: </string>
2873: <message></td></tr><tr><td></message>
2874: $code_selection
2875: <message></td></tr></table></message>
2876: <message><hr /><h3>Reprint a Set of Saved CODEs</h3><table><tr><td></message>
2877: <message><b>Select saved CODEs:</b></message>
2878: <message></td><td></message>
2879: <dropdown variable="REUSE_OLD_CODES">
2880: $namechoice
2881: </dropdown>
2882: <message></td></tr></table></message>
2883: </state>
2884: $resource_selector
2885: CHOOSE_ANON1
2886:
2887:
2888: if ($helper->{VARS}->{'assignment'}) {
2889: push @{$printChoices}, [&mt("Selected <b>Resources</b> from folder <b><i>[_1]</i></b> for <b>selected people</b>",$sequenceTitle), 'resources_for_students', 'CHOOSE_STUDENTS1'];
2890: push @{$printChoices}, [&mt("Selected <b>Resources</b> from folder <b><i>[_1]</i></b> for <b>CODEd assignments</b>",$sequenceTitle), 'resources_for_anon', 'CHOOSE_ANON2'];
2891: }
2892:
2893:
2894: $resource_selector=<<RESOURCE_SELECTOR;
2895: <state name="SELECT_RESOURCES" title="Select Resources">
2896: $randomly_ordered_warning
2897:
2898: <nextstate>PRINT_FORMATTING</nextstate>
2899: <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
2900: <resource variable="RESOURCES" multichoice="1" addstatus="1"
2901: closeallpages="1">
2902: <filterfunc>return $isNotMap;</filterfunc>
2903: <mapurl>$map</mapurl>
2904: <valuefunc>return $symbFilter;</valuefunc>
2905: $start_new_option
2906: </resource>
2907: </state>
2908: <state name="PRINT_FORMATTING" title="Format of the print job">
2909: <nextstate>NUMBER_PER_PDF</nextstate>
2910: <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
2911: <choices variable="EMPTY_PAGES">
2912: <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
2913: <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
2914: <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
2915: <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
2916: </choices>
2917: <nextstate>PAGESIZE</nextstate>
2918: <message><hr width='33%' /><b>How do you want assignments split into PDF files? </b></message>
2919: <choices variable="SPLIT_PDFS">
2920: <choice computer="all">All assignments in a single PDF file</choice>
2921: <choice computer="sections">Each PDF contains exactly one section</choice>
2922: <choice computer="oneper">Each PDF contains exactly one assignment</choice>
2923: <choice computer="usenumber" relatedvalue="NUMBER_TO_PRINT">
2924: Specify the number of assignments per PDF:</choice>
2925: </choices>
2926: </state>
2927: RESOURCE_SELECTOR
2928:
2929: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS1);
2930: <state name="CHOOSE_STUDENTS1" title="Select Students and Resources">
2931: <choices variable='student_sort'>
2932: <choice computer='0'>Sort by section then student</choice>
2933: <choice computer='1'>Sort by students across sections.</choice>
2934: </choices>
2935: <message><br /><hr /><br /></message>
2936: <student multichoice='1' variable="STUDENTS" nextstate="SELECT_RESOURCES" coursepersonnel="1" />
2937:
2938: </state>
2939: $resource_selector
2940: CHOOSE_STUDENTS1
2941:
2942: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_ANON2);
2943: <state name="CHOOSE_ANON2" title="Select CODEd Assignments">
2944: <nextstate>SELECT_RESOURCES</nextstate>
2945: <message><h4>Fill out one of the forms below</h4></message>
2946: <message><br /><hr /> <br /></message>
2947: <message><h3>Generate new CODEd Assignments</h3></message>
2948: <message><table><tr><td><b>Number of CODEd assignments to print:</b></td><td></message>
2949: <string variable="NUMBER_TO_PRINT_TOTAL" maxlength="5" size="5">
2950: <validator>
2951: if (((\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'}+0) < 1) &&
2952: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2953: !\$helper->{'VARS'}{'SINGLE_CODE'} &&
2954: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2955: return "You need to specify the number of assignments to print";
2956: }
2957: return undef;
2958: </validator>
2959: </string>
2960: <message></td></tr><tr><td></message>
2961: <message><b>Names to save the CODEs under for later:</b></message>
2962: <message></td><td></message>
2963: <string variable="ANON_CODE_STORAGE_NAME" maxlength="50" size="20" />
2964: <message></td></tr><tr><td></message>
2965: <message><b>Bubble sheet type:</b></message>
2966: <message></td><td></message>
2967: <dropdown variable="CODE_OPTION" multichoice="0" allowempty="0">
2968: $codechoice
2969: </dropdown>
2970: <message></td></tr><tr><td></table></message>
2971: <message><br /><hr /><h3>Print a Specific CODE </h3><br /><table></message>
2972: <message><tr><td><b>Enter a CODE to print:</b></td><td></message>
2973: <string variable="SINGLE_CODE" size="10">
2974: <validator>
2975: if(!\$helper->{'VARS'}{'NUMBER_TO_PRINT_TOTAL'} &&
2976: !\$helper->{'VARS'}{'REUSE_OLD_CODES'} &&
2977: !\$helper->{'VARS'}{'CODE_SELECTED_FROM_LIST'}) {
2978: return &Apache::lonprintout::is_code_valid(\$helper->{'VARS'}{'SINGLE_CODE'},
2979: \$helper->{'VARS'}{'CODE_OPTION'});
2980: } else {
2981: return undef; # Other forces control us.
2982: }
2983: </validator>
2984: </string>
2985: <message></td></tr><tr><td></message>
2986: $code_selection
2987: <message></td></tr></table></message>
2988: <message><hr /><h3>Reprint a Set of Saved CODEs</h3><table><tr><td></message>
2989: <message><b>Select saved CODEs:</b></message>
2990: <message></td><td></message>
2991: <dropdown variable="REUSE_OLD_CODES">
2992: $namechoice
2993: </dropdown>
2994: <message></td></tr></table></message>
2995: </state>
2996: $resource_selector
2997: CHOOSE_ANON2
2998: }
2999:
3000: # FIXME: That RE should come from a library somewhere.
3001: if (($perm{'pav'}
3002: && $subdir ne $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'
3003: && (defined($helper->{'VARS'}->{'construction'})
3004: ||
3005: (&Apache::lonnet::allowed('bre',$subdir) eq 'F'
3006: &&
3007: $helper->{VARS}->{'postdata'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)/)
3008: ))
3009: && $helper->{VARS}->{'assignment'} eq ""
3010: ) {
3011:
3012: my $pretty_dir = &Apache::lonnet::hreflocation($subdir);
3013: push @{$printChoices}, [&mt("Selected <b>Problems</b> from current subdirectory <b><i>[_1]</i></b>",$pretty_dir), 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];
3014: my $xmlfrag = <<CHOOSE_FROM_SUBDIR;
3015: <state name="CHOOSE_FROM_SUBDIR" title="Select File(s) from <b><small>$pretty_dir</small></b> to print">
3016:
3017: <files variable="FILES" multichoice='1'>
3018: <nextstate>PAGESIZE</nextstate>
3019: <filechoice>return '$subdir';</filechoice>
3020: CHOOSE_FROM_SUBDIR
3021:
3022: # this is broken up because I really want interpolation above,
3023: # and I really DON'T want it below
3024: $xmlfrag .= <<'CHOOSE_FROM_SUBDIR';
3025: <filefilter>return Apache::lonhelper::files::not_old_version($filename) &&
3026: $filename =~ m/\.(problem|exam|quiz|assess|survey|form|library)$/;
3027: </filefilter>
3028: </files>
3029: </state>
3030: CHOOSE_FROM_SUBDIR
3031: &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
3032: }
3033:
3034: # Allow the user to select any sequence in the course, feed it to
3035: # another resource selector for that sequence
3036: if (!$helper->{VARS}->{'construction'} && !$is_published) {
3037: push @$printChoices, [&mtn("Selected <b>Resources</b> from <b>selected folder</b> in course"),
3038: 'select_sequences', 'CHOOSE_SEQUENCE'];
3039: my $escapedSequenceName = $helper->{VARS}->{'SEQUENCE'};
3040: #Escape apostrophes and backslashes for Perl
3041: $escapedSequenceName =~ s/\\/\\\\/g;
3042: $escapedSequenceName =~ s/'/\\'/g;
3043: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_FROM_ANY_SEQUENCE);
3044: <state name="CHOOSE_SEQUENCE" title="Select Sequence To Print From">
3045: <message>Select the sequence to print resources from:</message>
3046: <resource variable="SEQUENCE">
3047: <nextstate>CHOOSE_FROM_ANY_SEQUENCE</nextstate>
3048: <filterfunc>return \$res->is_sequence;</filterfunc>
3049: <valuefunc>return $urlValue;</valuefunc>
3050: <choicefunc>return \$res->hasResource(\$res,sub { return !\$_[0]->is_sequence() },0,0);
3051: </choicefunc>
3052: </resource>
3053: </state>
3054: <state name="CHOOSE_FROM_ANY_SEQUENCE" title="Select Resources To Print">
3055: <message>(mark desired resources then click "next" button) <br /></message>
3056: <resource variable="RESOURCES" multichoice="1" toponly='1' addstatus="1"
3057: closeallpages="1">
3058: <nextstate>PAGESIZE</nextstate>
3059: <filterfunc>return $isNotMap</filterfunc>
3060: <mapurl evaluate='1'>return '$escapedSequenceName';</mapurl>
3061: <valuefunc>return $symbFilter;</valuefunc>
3062: $start_new_option
3063: </resource>
3064: </state>
3065: CHOOSE_FROM_ANY_SEQUENCE
3066: }
3067:
3068: # Generate the first state, to select which resources get printed.
3069: Apache::lonhelper::state->new("START", "Select Printing Options:");
3070: $paramHash = Apache::lonhelper::getParamHash();
3071: $paramHash->{MESSAGE_TEXT} = "";
3072: Apache::lonhelper::message->new();
3073: $paramHash = Apache::lonhelper::getParamHash();
3074: $paramHash->{'variable'} = 'PRINT_TYPE';
3075: $paramHash->{CHOICES} = $printChoices;
3076: Apache::lonhelper::choices->new();
3077:
3078: my $startedTable = 0; # have we started an HTML table yet? (need
3079: # to close it later)
3080:
3081: if (($perm{'pav'} and &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) or
3082: ($helper->{VARS}->{'construction'} eq '1')) {
3083: addMessage("<hr width='33%' /><table><tr><td align='right'>".
3084: '<label for="ANSWER_TYPE_forminput">'.
3085: &mt('Print').
3086: "</label>: </td><td>");
3087: $paramHash = Apache::lonhelper::getParamHash();
3088: $paramHash->{'variable'} = 'ANSWER_TYPE';
3089: $helper->declareVar('ANSWER_TYPE');
3090: $paramHash->{CHOICES} = [
3091: ['Without Answers', 'yes'],
3092: ['With Answers', 'no'],
3093: ['Only Answers', 'only']
3094: ];
3095: Apache::lonhelper::dropdown->new();
3096: addMessage("</td></tr>");
3097: $startedTable = 1;
3098: }
3099:
3100: if ($perm{'pav'}) {
3101: if (!$startedTable) {
3102: addMessage("<hr width='33%' /><table><tr><td align='right'>".
3103: '<label for="LATEX_TYPE_forminput">'.
3104: &mt('LaTeX mode').
3105: "</label>: </td><td>");
3106: $startedTable = 1;
3107: } else {
3108: addMessage("<tr><td align='right'>".
3109: '<label for="LATEX_TYPE_forminput">'.
3110: &mt('LaTeX mode').
3111: "</label>: </td><td>");
3112: }
3113: $paramHash = Apache::lonhelper::getParamHash();
3114: $paramHash->{'variable'} = 'LATEX_TYPE';
3115: $helper->declareVar('LATEX_TYPE');
3116: if ($helper->{VARS}->{'construction'} eq '1') {
3117: $paramHash->{CHOICES} = [
3118: ['standard LaTeX mode', 'standard'],
3119: ['LaTeX batchmode', 'batchmode'], ];
3120: } else {
3121: $paramHash->{CHOICES} = [
3122: ['LaTeX batchmode', 'batchmode'],
3123: ['standard LaTeX mode', 'standard'] ];
3124: }
3125: Apache::lonhelper::dropdown->new();
3126:
3127: addMessage("</td></tr><tr><td align='right'>".
3128: '<label for="TABLE_CONTENTS_forminput">'.
3129: &mt('Print Table of Contents').
3130: "</label>: </td><td>");
3131: $paramHash = Apache::lonhelper::getParamHash();
3132: $paramHash->{'variable'} = 'TABLE_CONTENTS';
3133: $helper->declareVar('TABLE_CONTENTS');
3134: $paramHash->{CHOICES} = [
3135: ['No', 'no'],
3136: ['Yes', 'yes'] ];
3137: Apache::lonhelper::dropdown->new();
3138: addMessage("</td></tr>");
3139:
3140: if (not $helper->{VARS}->{'construction'}) {
3141: addMessage("<tr><td align='right'>".
3142: '<label for="TABLE_INDEX_forminput">'.
3143: &mt('Print Index').
3144: "</label>: </td><td>");
3145: $paramHash = Apache::lonhelper::getParamHash();
3146: $paramHash->{'variable'} = 'TABLE_INDEX';
3147: $helper->declareVar('TABLE_INDEX');
3148: $paramHash->{CHOICES} = [
3149: ['No', 'no'],
3150: ['Yes', 'yes'] ];
3151: Apache::lonhelper::dropdown->new();
3152: addMessage("</td></tr>");
3153: addMessage("<tr><td align='right'>".
3154: '<label for="PRINT_DISCUSSIONS_forminput">'.
3155: &mt('Print Discussions').
3156: "</label>: </td><td>");
3157: $paramHash = Apache::lonhelper::getParamHash();
3158: $paramHash->{'variable'} = 'PRINT_DISCUSSIONS';
3159: $helper->declareVar('PRINT_DISCUSSIONS');
3160: $paramHash->{CHOICES} = [
3161: ['No', 'no'],
3162: ['Yes', 'yes'] ];
3163: Apache::lonhelper::dropdown->new();
3164: addMessage("</td></tr>");
3165:
3166: # Prompt for printing annotations too.
3167:
3168: addMessage("<tr><td align='right'>".
3169: '<label for="PRINT_ANNOTATIONS_forminput">'.
3170: &mt('Print Annotations').
3171: "</label>:</td><td>");
3172: $paramHash = Apache::lonhelper::getParamHash();
3173: $paramHash->{'variable'} = "PRINT_ANNOTATIONS";
3174: $helper->declareVar("PRINT_ANNOTATIONS");
3175: $paramHash->{CHOICES} = [
3176: ['No', 'no'],
3177: ['Yes', 'yes']];
3178: Apache::lonhelper::dropdown->new();
3179: addMessage("</td></tr>");
3180:
3181: addMessage("<tr><td align = 'right'> </td><td>");
3182: $paramHash = Apache::lonhelper::getParamHash();
3183: $paramHash->{'multichoice'} = "true";
3184: $paramHash->{'allowempty'} = "true";
3185: $paramHash->{'variable'} = "showallfoils";
3186: $paramHash->{'CHOICES'} = [ ["Show all foils", "1"] ];
3187: Apache::lonhelper::choices->new();
3188: addMessage("</td></tr>");
3189: }
3190:
3191: if ($helper->{'VARS'}->{'construction'}) {
3192: my $stylevalue='$Apache::lonnet::env{"construct.style"}';
3193: my $randseedtext=&mt("Use random seed");
3194: my $stylefiletext=&mt("Use style file");
3195: my $selectfiletext=&mt("Select style file");
3196:
3197: my $xmlfrag .= <<"RNDSEED";
3198: <message><tr><td align='right'>
3199: <label for="curseed_forminput">$randseedtext</label>:
3200: </td><td></message>
3201: <string variable="curseed" size="15" maxlength="15">
3202: <defaultvalue>
3203: return $helper->{VARS}->{'curseed'};
3204: </defaultvalue>
3205: </string>
3206: <message></td></tr><tr><td align="right">
3207: <label for="style_file">$stylefiletext</label>:
3208: </td><td></message>
3209: <string variable="style_file" size="40">
3210: <defaultvalue>
3211: return $stylevalue;
3212: </defaultvalue>
3213: </string><message> <a href="javascript:openbrowser('helpform','style_file_forminput','sty')">$selectfiletext</a> </td></tr><tr><td></td><td align="left"></message>
3214: <choices allowempty="1" multichoice="true" variable="showallfoils">
3215: <choice computer="1">Show all foils</choice>
3216: </choices>
3217: <message></td></tr></message>
3218: RNDSEED
3219: &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
3220:
3221:
3222: addMessage("<tr><td>Problem Type:</td><td>");
3223: $paramHash = &Apache::lonhelper::getParamHash();
3224: $paramHash->{'variable'} = 'probstatus'; # Already declared:
3225: #
3226: # Initial value from construction space:
3227: #
3228: if (!$helper->{VARS}->{'probstatus'} && $env{'form.problemtype'}) {
3229: $helper->{VARS}->{'probstatus'} = $env{'form.problemtype'}; # initial value
3230: }
3231: $paramHash->{CHOICES} = [
3232: ['Homework problem', 'problem'],
3233: ['Exam Problem', 'exam'],
3234: ['Survey question', 'survey']];
3235: Apache::lonhelper::dropdown->new();
3236: addMessage("</td></tr>");
3237:
3238: }
3239: }
3240:
3241:
3242:
3243:
3244: if ($startedTable) {
3245: addMessage("</table>");
3246: }
3247:
3248: Apache::lonprintout::page_format_state->new("FORMAT");
3249:
3250: # Generate the PAGESIZE state which will offer the user the margin
3251: # choices if they select one column
3252: Apache::lonhelper::state->new("PAGESIZE", "Set Margins");
3253: Apache::lonprintout::page_size_state->new('pagesize', 'FORMAT', 'FINAL');
3254:
3255:
3256: $helper->process();
3257:
3258:
3259: # MANUAL BAILOUT CONDITION:
3260: # If we're in the "final" state, bailout and return to handler
3261: if ($helper->{STATE} eq 'FINAL') {
3262: return $helper;
3263: }
3264:
3265: $r->print($helper->display());
3266: if ($helper->{STATE} eq 'START') {
3267: &recently_generated($r);
3268: }
3269: &Apache::lonhelper::unregisterHelperTags();
3270:
3271: return OK;
3272: }
3273:
3274:
3275: 1;
3276:
3277: package Apache::lonprintout::page_format_state;
3278:
3279: =pod
3280:
3281: =head1 Helper element: page_format_state
3282:
3283: See lonhelper.pm documentation for discussion of the helper framework.
3284:
3285: Apache::lonprintout::page_format_state is an element that gives the
3286: user an opportunity to select the page layout they wish to print
3287: with: Number of columns, portrait/landscape, and paper size. If you
3288: want to change the paper size choices, change the @paperSize array
3289: contents in this package.
3290:
3291: page_format_state is always directly invoked in lonprintout.pm, so there
3292: is no tag interface. You actually pass parameters to the constructor.
3293:
3294: =over 4
3295:
3296: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
3297:
3298: =back
3299:
3300: =cut
3301:
3302: use Apache::lonhelper;
3303:
3304: no strict;
3305: @ISA = ("Apache::lonhelper::element");
3306: use strict;
3307: use Apache::lonlocal;
3308: use Apache::lonnet;
3309:
3310: my $maxColumns = 2;
3311: # it'd be nice if these all worked
3312: #my @paperSize = ("letter [8 1/2x11 in]", "legal [8 1/2x14 in]",
3313: # "tabloid (ledger) [11x17 in]", "executive [7 1/2x10 in]",
3314: # "a2 [420x594 mm]", "a3 [297x420 mm]", "a4 [210x297 mm]",
3315: # "a5 [148x210 mm]", "a6 [105x148 mm]" );
3316: my @paperSize = ("letter [8 1/2x11 in]", "legal [8 1/2x14 in]",
3317: "a4 [210x297 mm]");
3318:
3319: # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |
3320: # Paper type
3321:
3322: sub new {
3323: my $self = Apache::lonhelper::element->new();
3324:
3325: shift;
3326:
3327: $self->{'variable'} = shift;
3328: my $helper = Apache::lonhelper::getHelper();
3329: $helper->declareVar($self->{'variable'});
3330: bless($self);
3331: return $self;
3332: }
3333:
3334: sub render {
3335: my $self = shift;
3336: my $helper = Apache::lonhelper::getHelper();
3337: my $result = '';
3338: my $var = $self->{'variable'};
3339: my $PageLayout=&mt('Page layout');
3340: my $NumberOfColumns=&mt('Number of columns');
3341: my $PaperType=&mt('Paper type');
3342: my $landscape=&mt('Landscape');
3343: my $portrait=&mt('Portrait');
3344: $result .= <<STATEHTML;
3345:
3346: <hr width="33%" />
3347: <table cellpadding="3">
3348: <tr>
3349: <td align="center"><b>$PageLayout</b></td>
3350: <td align="center"><b>$NumberOfColumns</b></td>
3351: <td align="center"><b>$PaperType</b></td>
3352: </tr>
3353: <tr>
3354: <td>
3355: <label><input type="radio" name="${var}.layout" value="L" /> $landscape </label><br />
3356: <label><input type="radio" name="${var}.layout" value="P" checked='1' /> $portrait </label>
3357: </td>
3358: <td align="center">
3359: <select name="${var}.cols">
3360: STATEHTML
3361:
3362: my $i;
3363: for ($i = 1; $i <= $maxColumns; $i++) {
3364: if ($i == 2) {
3365: $result .= "<option value='$i' selected>$i</option>\n";
3366: } else {
3367: $result .= "<option value='$i'>$i</option>\n";
3368: }
3369: }
3370:
3371: $result .= "</select></td><td>\n";
3372: $result .= "<select name='${var}.paper'>\n";
3373:
3374: my %parmhash=&Apache::lonnet::coursedescription($env{'request.course.id'});
3375: my $DefaultPaperSize=lc($parmhash{'default_paper_size'});
3376: $DefaultPaperSize=~s/\s//g;
3377: if ($DefaultPaperSize eq '') {$DefaultPaperSize='letter';}
3378: $i = 0;
3379: foreach (@paperSize) {
3380: $_=~/(\w+)/;
3381: my $papersize=$1;
3382: if ($paperSize[$i]=~/$DefaultPaperSize/) {
3383: $result .= "<option selected value='$papersize'>" . $paperSize[$i] . "</option>\n";
3384: } else {
3385: $result .= "<option value='$papersize'>" . $paperSize[$i] . "</option>\n";
3386: }
3387: $i++;
3388: }
3389: $result .= "</select></td></tr></table>";
3390: return $result;
3391: }
3392:
3393: sub postprocess {
3394: my $self = shift;
3395:
3396: my $var = $self->{'variable'};
3397: my $helper = Apache::lonhelper->getHelper();
3398: $helper->{VARS}->{$var} =
3399: $env{"form.$var.layout"} . '|' . $env{"form.$var.cols"} . '|' .
3400: $env{"form.$var.paper"};
3401: return 1;
3402: }
3403:
3404: 1;
3405:
3406: package Apache::lonprintout::page_size_state;
3407:
3408: =pod
3409:
3410: =head1 Helper element: page_size_state
3411:
3412: See lonhelper.pm documentation for discussion of the helper framework.
3413:
3414: Apache::lonprintout::page_size_state is an element that gives the
3415: user the opportunity to further refine the page settings if they
3416: select a single-column page.
3417:
3418: page_size_state is always directly invoked in lonprintout.pm, so there
3419: is no tag interface. You actually pass parameters to the constructor.
3420:
3421: =over 4
3422:
3423: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
3424:
3425: =back
3426:
3427: =cut
3428:
3429: use Apache::lonhelper;
3430: use Apache::lonnet;
3431: no strict;
3432: @ISA = ("Apache::lonhelper::element");
3433: use strict;
3434:
3435:
3436:
3437: sub new {
3438: my $self = Apache::lonhelper::element->new();
3439:
3440: shift; # disturbs me (probably prevents subclassing) but works (drops
3441: # package descriptor)... - Jeremy
3442:
3443: $self->{'variable'} = shift;
3444: my $helper = Apache::lonhelper::getHelper();
3445: $helper->declareVar($self->{'variable'});
3446:
3447: # The variable name of the format element, so we can look into
3448: # $helper->{VARS} to figure out whether the columns are one or two
3449: $self->{'formatvar'} = shift;
3450:
3451:
3452: $self->{NEXTSTATE} = shift;
3453: bless($self);
3454:
3455: return $self;
3456: }
3457:
3458: sub render {
3459: my $self = shift;
3460: my $helper = Apache::lonhelper::getHelper();
3461: my $result = '';
3462: my $var = $self->{'variable'};
3463:
3464:
3465:
3466: if (defined $self->{ERROR_MSG}) {
3467: $result .= '<br /><span class="LC_error">' . $self->{ERROR_MSG} . '</span><br />';
3468: }
3469:
3470: my $format = $helper->{VARS}->{$self->{'formatvar'}};
3471:
3472: # Use format to get sensible defaults for the margins:
3473:
3474:
3475: my ($laystyle, $cols, $papersize) = split(/\|/, $format);
3476: ($papersize) = split(/ /, $papersize);
3477:
3478:
3479: if ($laystyle eq 'L') {
3480: $laystyle = 'album';
3481: } else {
3482: $laystyle = 'book';
3483: }
3484:
3485:
3486: my %size;
3487: ($size{'width_and_units'},
3488: $size{'height_and_units'},
3489: $size{'margin_and_units'})=
3490: &Apache::lonprintout::page_format($papersize, $laystyle, $cols);
3491:
3492: foreach my $dimension ('width','height','margin') {
3493: ($size{$dimension},$size{$dimension.'_unit'}) =
3494: split(/ +/, $size{$dimension.'_and_units'},2);
3495:
3496: foreach my $unit ('cm','in') {
3497: $size{$dimension.'_options'} .= '<option ';
3498: if ($size{$dimension.'_unit'} eq $unit) {
3499: $size{$dimension.'_options'} .= 'selected="selected" ';
3500: }
3501: $size{$dimension.'_options'} .= '>'.$unit.'</option>';
3502: }
3503: }
3504:
3505: # Adjust margin for LaTeX margin: .. requires units == cm or in.
3506:
3507: if ($size{'margin_unit'} eq 'in') {
3508: $size{'margin'} += 1;
3509: } else {
3510: $size{'margin'} += 2.54;
3511: }
3512: my %text = ('format' => 'How should each column be formatted?',
3513: 'width' => 'Width:',
3514: 'height' => 'Height:',
3515: 'margin' => 'Left Margin:',);
3516: %text = &Apache::lonlocal::texthash(%text);
3517:
3518: $result .= <<ELEMENTHTML;
3519:
3520: <p>$text{'format'}</p>
3521:
3522: <table cellpadding='3'>
3523: <tr>
3524: <td align='right'><b>$text{'width'}</b></td>
3525: <td align='left'><input type='text' name='$var.width' value="$size{'width'}" size='4' /></td>
3526: <td align='left'>
3527: <select name='$var.widthunit'>
3528: $size{'width_options'}
3529: </select>
3530: </td>
3531: </tr>
3532: <tr>
3533: <td align='right'><b>$text{'height'}</b></td>
3534: <td align='left'><input type='text' name="$var.height" value="$size{'height'}" size='4' /></td>
3535: <td align='left'>
3536: <select name='$var.heightunit'>
3537: $size{'height_options'}
3538: </select>
3539: </td>
3540: </tr>
3541: <tr>
3542: <td align='right'><b>$text{'margin'}</b></td>
3543: <td align='left'><input type='text' name='$var.lmargin' value="$size{'margin'}" size='4' /></td>
3544: <td align='left'>
3545: <select name='$var.lmarginunit'>
3546: $size{'margin_options'}
3547: </select>
3548: </td>
3549: </tr>
3550: </table>
3551:
3552: <!--<p>Hint: Some instructors like to leave scratch space for the student by
3553: making the width much smaller than the width of the page.</p>-->
3554:
3555: ELEMENTHTML
3556:
3557: return $result;
3558: }
3559:
3560:
3561: sub preprocess {
3562: my $self = shift;
3563: my $helper = Apache::lonhelper::getHelper();
3564:
3565: my $format = $helper->{VARS}->{$self->{'formatvar'}};
3566:
3567: # If the user does not have 'pav' privilege, set default widths and
3568: # on to the next state right away.
3569: #
3570: if (!$perm{'pav'}) {
3571: my $var = $self->{'variable'};
3572: my $format = $helper->{VARS}->{$self->{'formatvar'}};
3573:
3574: my ($laystyle, $cols, $papersize) = split(/\|/, $format);
3575: ($papersize) = split(/ /, $papersize);
3576:
3577:
3578: if ($laystyle eq 'L') {
3579: $laystyle = 'album';
3580: } else {
3581: $laystyle = 'book';
3582: }
3583: # Figure out some good defaults for the print out and set them:
3584:
3585: my %size;
3586: ($size{'width'},
3587: $size{'height'},
3588: $size{'lmargin'})=
3589: &Apache::lonprintout::page_format($papersize, $laystyle, $cols);
3590:
3591: foreach my $dim ('width', 'height', 'lmargin') {
3592: my ($value, $units) = split(/ /, $size{$dim});
3593:
3594: $helper->{VARS}->{"$var.".$dim} = $value;
3595: $helper->{VARS}->{"$var.".$dim.'unit'} = $units;
3596:
3597: }
3598:
3599:
3600: # Transition to the next state
3601:
3602: $helper->changeState($self->{NEXTSTATE});
3603: }
3604:
3605: return 1;
3606: }
3607:
3608: sub postprocess {
3609: my $self = shift;
3610:
3611: my $var = $self->{'variable'};
3612: my $helper = Apache::lonhelper->getHelper();
3613: my $width = $helper->{VARS}->{$var .'.width'} = $env{"form.${var}.width"};
3614: my $height = $helper->{VARS}->{$var .'.height'} = $env{"form.${var}.height"};
3615: my $lmargin = $helper->{VARS}->{$var .'.lmargin'} = $env{"form.${var}.lmargin"};
3616: $helper->{VARS}->{$var .'.widthunit'} = $env{"form.${var}.widthunit"};
3617: $helper->{VARS}->{$var .'.heightunit'} = $env{"form.${var}.heightunit"};
3618: $helper->{VARS}->{$var .'.lmarginunit'} = $env{"form.${var}.lmarginunit"};
3619:
3620: my $error = '';
3621:
3622: # /^-?[0-9]+(\.[0-9]*)?$/ -> optional minus, at least on digit, followed
3623: # by an optional period, followed by digits, ending the string
3624:
3625: if ($width !~ /^-?[0-9]*(\.[0-9]*)?$/) {
3626: $error .= "Invalid width; please type only a number.<br />\n";
3627: }
3628: if ($height !~ /^-?[0-9]*(\.[0-9]*)?$/) {
3629: $error .= "Invalid height; please type only a number.<br />\n";
3630: }
3631: if ($lmargin !~ /^-?[0-9]*(\.[0-9]*)?$/) {
3632: $error .= "Invalid left margin; please type only a number.<br />\n";
3633: } else {
3634: # Adjust for LaTeX 1.0 inch margin:
3635:
3636: if ($env{"form.${var}.lmarginunit"} eq "in") {
3637: $helper->{VARS}->{$var.'.lmargin'} = $lmargin - 1;
3638: } else {
3639: $helper->{VARS}->{$var.'.lmargin'} = $lmargin - 2.54;
3640: }
3641: }
3642:
3643: if (!$error) {
3644: Apache::lonhelper::getHelper()->changeState($self->{NEXTSTATE});
3645: return 1;
3646: } else {
3647: $self->{ERROR_MSG} = $error;
3648: return 0;
3649: }
3650: }
3651:
3652:
3653:
3654: __END__
3655:
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