File:
[LON-CAPA] /
loncom /
interface /
lonprintout.pm
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1.191:
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Thu Jun 19 15:46:42 2003 UTC (21 years, 2 months ago) by
bowersj2
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This message is no longer necessary. If people have further trouble with
this issue the solution is not to add 'helpful' text messages that
nobody will read, the solution is to take the multiple "things to do"
out of the helper and institute a "one screen, one thing to do" policy
for helpers.
First rule of the web: People don't read. (But they will happily take
the opportunity to blame you for not having help if you don't provide
it, even though they won't use it.)
1: # The LearningOnline Network
2: # Printout
3: #
4: # $Id: lonprintout.pm,v 1.191 2003/06/19 15:46:42 bowersj2 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: #
26: # http://www.lon-capa.org/
27: #
28: # (Internal Server Error Handler
29: #
30: # (Login Screen
31: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
32: # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
33: #
34: # 3/1/1 Gerd Kortemeyer)
35: #
36: # 3/1 Gerd Kortemeyer
37: #
38: # 9/17 Alex Sakharuk
39: #
40: package Apache::lonprintout;
41:
42: use strict;
43: use Apache::Constants qw(:common :http);
44: use Apache::lonxml;
45: use Apache::lonnet;
46: use Apache::loncommon;
47: use Apache::inputtags;
48: use Apache::grades;
49: use Apache::edit;
50: use Apache::File();
51: use Apache::lonnavmaps;
52: use POSIX qw(strftime);
53: use GDBM_File;
54:
55:
56: my %hash;
57: my $LaTeXwidth = 0;
58:
59:
60: sub latex_header_footer_remove {
61: my $text = shift;
62: $text =~ s/\\end{document}//;
63: $text =~ s/\\documentclass([^&]*)\\begin{document}//;
64: return $text;
65: }
66:
67:
68: sub character_chart {
69: my $result = shift;
70: $result =~ s/&\#0?0?(7|9);//g;
71: $result =~ s/&\#0?(10|13);//g;
72: $result =~ s/&\#0?32;/ /g;
73: $result =~ s/&\#0?33;/!/g;
74: $result =~ s/&(\#0?34|quot);/\"/g;
75: $result =~ s/&\#0?35;/\\\#/g;
76: $result =~ s/&\#0?36;/\\\$/g;
77: $result =~ s/&\#0?37;/\\%/g;
78: $result =~ s/&(\#0?38|amp);/\\&/g;
79: $result =~ s/&\#(0?39|146);/\'/g;
80: $result =~ s/&\#0?40;/(/g;
81: $result =~ s/&\#0?41;/)/g;
82: $result =~ s/&\#0?42;/\*/g;
83: $result =~ s/&\#0?43;/\+/g;
84: $result =~ s/&\#(0?44|130);/,/g;
85: $result =~ s/&\#0?45;/-/g;
86: $result =~ s/&\#0?46;/\./g;
87: $result =~ s/&\#0?47;/\//g;
88: $result =~ s/&\#0?48;/0/g;
89: $result =~ s/&\#0?49;/1/g;
90: $result =~ s/&\#0?50;/2/g;
91: $result =~ s/&\#0?51;/3/g;
92: $result =~ s/&\#0?52;/4/g;
93: $result =~ s/&\#0?53;/5/g;
94: $result =~ s/&\#0?54;/6/g;
95: $result =~ s/&\#0?55;/7/g;
96: $result =~ s/&\#0?56;/8/g;
97: $result =~ s/&\#0?57;/9/g;
98: $result =~ s/&\#0?58;/:/g;
99: $result =~ s/&\#0?59;/;/g;
100: $result =~ s/&(\#0?60|lt|\#139);/\$<\$/g;
101: $result =~ s/&\#0?61;/\$=\$/g;
102: $result =~ s/&(\#0?62|gt|\#155);/\$>\$/g;
103: $result =~ s/&\#0?63;/\?/g;
104: $result =~ s/&\#0?65;/A/g;
105: $result =~ s/&\#0?66;/B/g;
106: $result =~ s/&\#0?67;/C/g;
107: $result =~ s/&\#0?68;/D/g;
108: $result =~ s/&\#0?69;/E/g;
109: $result =~ s/&\#0?70;/F/g;
110: $result =~ s/&\#0?71;/G/g;
111: $result =~ s/&\#0?72;/H/g;
112: $result =~ s/&\#0?73;/I/g;
113: $result =~ s/&\#0?74;/J/g;
114: $result =~ s/&\#0?75;/K/g;
115: $result =~ s/&\#0?76;/L/g;
116: $result =~ s/&\#0?77;/M/g;
117: $result =~ s/&\#0?78;/N/g;
118: $result =~ s/&\#0?79;/O/g;
119: $result =~ s/&\#0?80;/P/g;
120: $result =~ s/&\#0?81;/Q/g;
121: $result =~ s/&\#0?82;/R/g;
122: $result =~ s/&\#0?83;/S/g;
123: $result =~ s/&\#0?84;/T/g;
124: $result =~ s/&\#0?85;/U/g;
125: $result =~ s/&\#0?86;/V/g;
126: $result =~ s/&\#0?87;/W/g;
127: $result =~ s/&\#0?88;/X/g;
128: $result =~ s/&\#0?89;/Y/g;
129: $result =~ s/&\#0?90;/Z/g;
130: $result =~ s/&\#0?91;/[/g;
131: $result =~ s/&\#0?92;/\$\\setminus\$/g;
132: $result =~ s/&\#0?93;/]/g;
133: $result =~ s/&\#(0?94|136);/\$\\wedge\$/g;
134: $result =~ s/&\#(0?95|138|154);/\\underline{\\makebox[2mm]{\\strut}}/g;
135: $result =~ s/&\#(0?96|145);/\`/g;
136: $result =~ s/&\#0?97;/a/g;
137: $result =~ s/&\#0?98;/b/g;
138: $result =~ s/&\#0?99;/c/g;
139: $result =~ s/&\#100;/d/g;
140: $result =~ s/&\#101;/e/g;
141: $result =~ s/&\#102;/f/g;
142: $result =~ s/&\#103;/g/g;
143: $result =~ s/&\#104;/h/g;
144: $result =~ s/&\#105;/i/g;
145: $result =~ s/&\#106;/j/g;
146: $result =~ s/&\#107;/k/g;
147: $result =~ s/&\#108;/l/g;
148: $result =~ s/&\#109;/m/g;
149: $result =~ s/&\#110;/n/g;
150: $result =~ s/&\#111;/o/g;
151: $result =~ s/&\#112;/p/g;
152: $result =~ s/&\#113;/q/g;
153: $result =~ s/&\#114;/r/g;
154: $result =~ s/&\#115;/s/g;
155: $result =~ s/&\#116;/t/g;
156: $result =~ s/&\#117;/u/g;
157: $result =~ s/&\#118;/v/g;
158: $result =~ s/&\#119;/w/g;
159: $result =~ s/&\#120;/x/g;
160: $result =~ s/&\#121;/y/g;
161: $result =~ s/&\#122;/z/g;
162: $result =~ s/&\#123;/\\{/g;
163: $result =~ s/&\#124;/\|/g;
164: $result =~ s/&\#125;/\\}/g;
165: $result =~ s/&\#126;/\~/g;
166: $result =~ s/&\#131;/\\textflorin /g;
167: $result =~ s/&\#132;/\"/g;
168: $result =~ s/&\#133;/\$\\ldots\$/g;
169: $result =~ s/&\#134;/\$\\dagger\$/g;
170: $result =~ s/&\#135;/\$\\ddagger\$/g;
171: $result =~ s/&\#137;/\\textperthousand /g;
172: $result =~ s/&\#140;/{\\OE}/g;
173: $result =~ s/&\#147;/\`\`/g;
174: $result =~ s/&\#148;/\'\'/g;
175: $result =~ s/&\#149;/\$\\bullet\$/g;
176: $result =~ s/&\#150;/--/g;
177: $result =~ s/&\#151;/---/g;
178: $result =~ s/&\#152;/\$\\sim\$/g;
179: $result =~ s/&\#153;/\\texttrademark /g;
180: $result =~ s/&\#156;/\\oe/g;
181: $result =~ s/&\#159;/\\\"Y/g;
182: $result =~ s/&(\#160|nbsp);//g;
183: $result =~ s/&(\#161|iexcl);/!\`/g;
184: $result =~ s/&(\#162|cent);/\\textcent /g;
185: $result =~ s/&(\#163|pound);/\\pounds /g;
186: $result =~ s/&(\#164|curren);/\\textcurrency /g;
187: $result =~ s/&(\#165|yen);/\\textyen /g;
188: $result =~ s/&(\#166|brvbar);/\\textbrokenbar /g;
189: $result =~ s/&(\#167|sect);/\\textsection /g;
190: $result =~ s/&(\#168|uml);/\\texthighdieresis /g;
191: $result =~ s/&(\#169|copy);/\\copyright /g;
192: $result =~ s/&(\#170|ordf);/\\textordfeminine /g;
193: $result =~ s/&(\#172|not);/\$\\neg\$/g;
194: $result =~ s/&(\#173|shy);/ - /g;
195: $result =~ s/&(\#174|reg);/\\textregistered /g;
196: $result =~ s/&(\#175|macr);/\$^{-}\$/g;
197: $result =~ s/&(\#176|deg);/\$^{\\circ}\$/g;
198: $result =~ s/&(\#177|plusmn);/\$\\pm\$/g;
199: $result =~ s/&(\#178|sup2);/\$^2\$/g;
200: $result =~ s/&(\#179|sup3);/\$^3\$/g;
201: $result =~ s/&(\#180|acute);/\\textacute /g;
202: $result =~ s/&(\#181|micro);/\$\\mu\$/g;
203: $result =~ s/&(\#182|para);/\\P/g;
204: $result =~ s/&(\#183|middot);/\$\\cdot\$/g;
205: $result =~ s/&(\#184|cedil);/\\c{\\strut}/g;
206: $result =~ s/&(\#185|sup1);/\$^1\$/g;
207: $result =~ s/&(\#186|ordm);/\\textordmasculine /g;
208: $result =~ s/&(\#188|frac14);/\\textonequarter /g;
209: $result =~ s/&(\#189|frac12);/\\textonehalf /g;
210: $result =~ s/&(\#190|frac34);/\\textthreequarters /g;
211: $result =~ s/&(\#191|iquest);/?\`/g;
212: $result =~ s/&(\#192|Agrave);/\\\`{A}/g;
213: $result =~ s/&(\#193|Aacute);/\\\'{A}/g;
214: $result =~ s/&(\#194|Acirc);/\\^{A}/g;
215: $result =~ s/&(\#195|Atilde);/\\~{A}/g;
216: $result =~ s/&(\#196|Auml);/\\\"{A}/g;
217: $result =~ s/&(\#197|Aring);/{\\AA}/g;
218: $result =~ s/&(\#198|AElig);/{\\AE}/g;
219: $result =~ s/&(\#199|Ccedil);/\\c{c}/g;
220: $result =~ s/&(\#200|Egrave);/\\\`{E}/g;
221: $result =~ s/&(\#201|Eacute);/\\\'{E}/g;
222: $result =~ s/&(\#202|Ecirc);/\\^{E}/g;
223: $result =~ s/&(\#203|Euml);/\\\"{E}/g;
224: $result =~ s/&(\#204|Igrave);/\\\`{I}/g;
225: $result =~ s/&(\#205|Iacute);/\\\'{I}/g;
226: $result =~ s/&(\#206|Icirc);/\\^{I}/g;
227: $result =~ s/&(\#207|Iuml);/\\\"{I}/g;
228: $result =~ s/&(\#209|Ntilde);/\\~{N}/g;
229: $result =~ s/&(\#210|Ograve);/\\\`{O}/g;
230: $result =~ s/&(\#211|Oacute);/\\\'{O}/g;
231: $result =~ s/&(\#212|Ocirc);/\\^{O}/g;
232: $result =~ s/&(\#213|Otilde);/\\~{O}/g;
233: $result =~ s/&(\#214|Ouml);/\\\"{O}/g;
234: $result =~ s/&(\#215|times);/\$\\times\$/g;
235: $result =~ s/&(\#216|Oslash);/{\\O}/g;
236: $result =~ s/&(\#217|Ugrave);/\\\`{U}/g;
237: $result =~ s/&(\#218|Uacute);/\\\'{U}/g;
238: $result =~ s/&(\#219|Ucirc);/\\^{U}/g;
239: $result =~ s/&(\#220|Uuml);/\\\"{U}/g;
240: $result =~ s/&(\#221|Yacute);/\\\'{Y}/g;
241: $result =~ s/&(\#223|szlig);/\\ss/g;
242: $result =~ s/&(\#224|agrave);/\\\`{a}/g;
243: $result =~ s/&(\#225|aacute);/\\\'{a}/g;
244: $result =~ s/&(\#226|acirc);/\\^{a}/g;
245: $result =~ s/&(\#227|atilde);/\\~{a}/g;
246: $result =~ s/&(\#228|auml);/\\\"{a}/g;
247: $result =~ s/&(\#229|aring);/{\\aa}/g;
248: $result =~ s/&(\#230|aelig);/{\\ae}/g;
249: $result =~ s/&(\#231|ccedil);/\\c{c}/g;
250: $result =~ s/&(\#232|egrave);/\\\`{e}/g;
251: $result =~ s/&(\#233|eacute);/\\\'{e}/g;
252: $result =~ s/&(\#234|ecirc);/\\^{e}/g;
253: $result =~ s/&(\#235|euml);/\\\"{e}/g;
254: $result =~ s/&(\#236|igrave);/\\\`{i}/g;
255: $result =~ s/&(\#237|iacute);/\\\'{i}/g;
256: $result =~ s/&(\#238|icirc);/\\^{i}/g;
257: $result =~ s/&(\#239|iuml);/\\\"{i}/g;
258: $result =~ s/&(\#240|eth);/\$\\partial\$/g;
259: $result =~ s/&(\#241|ntilde);/\\~{n}/g;
260: $result =~ s/&(\#242|ograve);/\\\`{o}/g;
261: $result =~ s/&(\#243|oacute);/\\\'{o}/g;
262: $result =~ s/&(\#244|ocirc);/\\^{o}/g;
263: $result =~ s/&(\#245|otilde);/\\~{o}/g;
264: $result =~ s/&(\#246|ouml);/\\\"{o}/g;
265: $result =~ s/&(\#247|divide);/\$\\div\$/g;
266: $result =~ s/&(\#248|oslash);/{\\o}/g;
267: $result =~ s/&(\#249|ugrave);/\\\`{u}/g;
268: $result =~ s/&(\#250|uacute);/\\\'{u}/g;
269: $result =~ s/&(\#251|ucirc);/\\^{u}/g;
270: $result =~ s/&(\#252|uuml);/\\\"{u}/g;
271: $result =~ s/&(\#253|yacute);/\\\'{y}/g;
272: $result =~ s/&(\#255|yuml);/\\\"{y}/g;
273: $result =~ s/&\#952;/\$\\theta\$/g;
274: #Greek Alphabet
275: $result =~ s/&(alpha|\#945);/\$\\alpha \$/g;
276: $result =~ s/&(beta|\#946);/\$\\beta \$/g;
277: $result =~ s/&(gamma|\#947);/\$\\gamma \$/g;
278: $result =~ s/&(delta|\#948);/\$\\delta \$/g;
279: $result =~ s/&(epsilon|\#949);/\$\\epsilon \$/g;
280: $result =~ s/&(zeta|\#950);/\$\\zeta \$/g;
281: $result =~ s/&(eta|\#951);/\$\\eta \$/g;
282: $result =~ s/&(theta|\#952);/\$\\theta \$/g;
283: $result =~ s/&(iota|\#953);/\$\\iota \$/g;
284: $result =~ s/&(kappa|\#954);/\$\\kappa \$/g;
285: $result =~ s/&(lambda|\#955);/\$\\lambda \$/g;
286: $result =~ s/&(mu|\#956);/\$\\mu \$/g;
287: $result =~ s/&(nu|\#957);/\$\\nu \$/g;
288: $result =~ s/&(xi|\#958);/\$\\xi \$/g;
289: $result =~ s/&(pi|\#960);/\$\\pi \$/g;
290: $result =~ s/&(rho|\#961);/\$\\rho \$/g;
291: $result =~ s/&(sigma|\#963);/\$\\sigma \$/g;
292: $result =~ s/&(tau|\#964);/\$\\tau \$/g;
293: $result =~ s/&(upsilon|\#965);/\$\\upsilon \$/g;
294: $result =~ s/&(phi|\#966);/\$\\phi \$/g;
295: $result =~ s/&(chi|\#967);/\$\\chi \$/g;
296: $result =~ s/&(psi|\#968);/\$\\psi \$/g;
297: $result =~ s/&(omega|\#969);/\$\\omega \$/g;
298: $result =~ s/&(Gamma|\#915);/\$\\Gamma \$/g;
299: $result =~ s/&(Delta|\#916);/\$\\Delta \$/g;
300: $result =~ s/&(Theta|\#920);/\$\\Theta \$/g;
301: $result =~ s/&(Lambda|\#923);/\$\\Lambda \$/g;
302: $result =~ s/&(Xi|\#926);/\$\\Xi \$/g;
303: $result =~ s/&(Pi|\#928);/\$\\Pi \$/g;
304: $result =~ s/&(Sigma|\#931);/\$\\Sigma \$/g;
305: $result =~ s/&(Upsilon|\#933);/\$\\Upsilon \$/g;
306: $result =~ s/&(Phi|\#934);/\$\\Phi \$/g;
307: $result =~ s/&(Psi|\#936);/\$\\Psi \$/g;
308: $result =~ s/&(Omega|\#937);/\$\\Omega \$/g;
309: return $result;
310: }
311:
312:
313: sub page_format {
314: #
315: #Correspondence between $papersize variable and real paper format:
316: # 0 - "Letter [8 1/2x11 in]"
317: # 1 - "Legal [8 1/2x14 in]"
318: # 2 - "Ledger/Tabloid [11x17 in]"
319: # 3 - "Executive [7 1/2x10 in]"
320: # 4 - "A2 [420x594 mm]"
321: # 5 - "A3 [297x420 mm]"
322: # 6 - "A4 [210x297 mm]"
323: # 7 - "A5 [148x210 mm]"
324: # 8 - "A6 [105x148 mm]"
325: #
326: my ($papersize,$layout,$numberofcolumns) = @_;
327: my ($textwidth,$textheight,$oddoffset,$evenoffset) = (0,0,0,0);
328: if ($papersize eq '0') {
329: if ($layout eq 'book') {
330: if ($numberofcolumns == 1) {
331: $textwidth = '7.1 in'; #'18 cm';
332: $textheight = '10.2 in'; #'25.9 cm';
333: $oddoffset = '-0.57 in';
334: $evenoffset = '-0.57 in';
335: } elsif ($numberofcolumns == 2) {
336: $textwidth = '3.66 in'; #'93 mm';
337: $textheight = '10.2 in'; #'25.9 cm';
338: $oddoffset = '-0.57 in';
339: $evenoffset = '-0.57 in';
340: }
341: } elsif ($layout eq 'album') {
342: if ($numberofcolumns eq '1') {
343: $textwidth = '8.8 in';
344: $textheight = '6.8 in';
345: $oddoffset = '-40 pt';
346: $evenoffset = '-60 pt';
347: } elsif ($numberofcolumns == 2) {
348: $textwidth = '4.2 in';
349: $textheight = '6.8 in';
350: $oddoffset = '-40 pt';
351: $evenoffset = '-60 pt';
352: }
353: }
354: # } elsif($papersize eq '1') {
355: # } elsif($papersize eq '2') {
356: # } elsif($papersize eq '3'/) {
357: } elsif($papersize eq '6') {
358: if ($layout eq 'book') {
359: if ($numberofcolumns == 1) {
360: $textwidth = '18 cm';
361: $textheight = '28 cm';
362: $oddoffset = '-0.57 in';
363: $evenoffset = '-0.57 in';
364: } elsif ($numberofcolumns == 2) {
365: $textwidth = '96 mm';
366: $textheight = '2 cm';
367: $oddoffset = '-0.57 in';
368: $evenoffset = '-0.57 in';
369: }
370: } elsif ($layout eq 'album') {
371: if ($numberofcolumns eq '1') {
372: $textwidth = '8.5 in';
373: $textheight = '7.7 in';
374: $oddoffset = '-40 pt';
375: $evenoffset = '-60 pt';
376: } elsif ($numberofcolumns == 2) {
377: $textwidth = '3.9 in';
378: $textheight = '7.7 in';
379: $oddoffset = '-40 pt';
380: $evenoffset = '-60 pt';
381: }
382: }
383: # } elsif($papersize eq '5') {
384: # } elsif($papersize eq '4') {
385: # } elsif($papersize eq '7') {
386: # } elsif($papersize eq '8') {
387: }
388: return $textwidth,$textheight,$oddoffset,$evenoffset;
389: }
390:
391:
392: sub get_name {
393: my ($uname,$udom)=@_;
394: if (!defined($uname)) { $uname=$ENV{'user.name'}; }
395: if (!defined($udom)) { $uname=$ENV{'user.domain'}; }
396: my $plainname=&Apache::loncommon::plainname($uname,$udom);
397: if ($plainname=~/^\s*$/) { $plainname=$uname; }
398: return &Apache::lonxml::latex_special_symbols($plainname,undef,undef,
399: 'header');
400: }
401:
402:
403: sub page_format_transformation {
404: my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment) = @_;
405: my ($textwidth,$textheight,$oddoffset,$evenoffset);
406: $assignment=~s/_/ /g;
407: if ($numberofcolumns != 1) {
408: ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$layout,$numberofcolumns);
409: } else {
410: ($textwidth,$textheight,$oddoffset,$evenoffset) = ($ENV{'form.width'},$ENV{'form.height'},$ENV{'form.leftmargin'},$ENV{'form.leftmargin'});
411: }
412: my $name = &get_name();
413: if ($name =~ /^\s*$/) {
414: $name=&Apache::lonxml::latex_special_symbols($ENV{'user.name'},undef,
415: undef,'header');
416: }
417: my $courseidinfo = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($ENV{'course.'.$ENV{'request.course.id'}.'.description'}),'','','header');
418: if ($layout eq 'album') {
419: $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$oddoffset}\\setlength{\\evensidemargin}{$evenoffset}\\setlength{\\topmargin}{200pt}\\setlength{\\textwidth}{$textwidth}\\setlength{\\textheight}{$textheight}\\setlength{\\parindent}{20pt}\\setlength{\\marginparwidth}{90pt}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt}\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm} \\begin{document}\\setcounter{page}{1}\\noindent\\parbox{\\minipagewidth}{\\noindent\\fbox{\\textbf{$name}} \\hfill $courseidinfo} \\vskip 5 mm /;
420: } elsif ($layout eq 'book') {
421: if ($choice ne 'All class print') {
422: $text =~ s/\\begin{document}/\\textheight $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{}\\lhead{\\textbf{$name} - $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}\\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1}/;
423: } else {
424: $text =~ s/\\pagestyle{fancy}\\rhead{}\\chead{}\s*\\begin{document}/\\textheight = $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\pagestyle{fancy}\\rhead{}\\chead{}\\begin{document}\\voffset=-0\.8cm\\setcounter{page}{1} \\vskip 5 mm /;
425: }
426: }
427: return $text;
428: }
429:
430:
431: sub page_cleanup {
432: my $result = shift;
433:
434: $result =~ m/\\end{document}(\d*)$/;
435: my $number_of_columns = $1;
436: my $insert = '{';
437: for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
438: $insert .= '}';
439: $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE\\endfirsthead\\endhead/$1$insert/g;
440: $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
441: return $result,$number_of_columns;
442: }
443:
444:
445: sub details_for_menu {
446:
447: my $name_of_resourse = $hash{'title_'.$hash{'ids_'.$ENV{'form.postdata'}}};
448: my $symbolic = &Apache::lonnet::symbread($ENV{'form.postdata'});
449: my ($map,$id,$resource)=split(/___/,$symbolic);
450: $map=&Apache::lonnet::clutter($map);
451: my $name_of_sequence;
452: $name_of_sequence = $hash{'title_'.$hash{'ids_'.$map}};
453: if ($name_of_sequence =~ /^\s*$/) {
454: $map =~ m|([^/]+)$|;
455: $name_of_sequence = $1;
456: }
457: my $name_of_map = $hash{'title_'.$hash{'ids_'.&Apache::lonnet::clutter($ENV{'request.course.uri'})}};
458: if ($name_of_map =~ /^\s*$/) {
459: $ENV{'request.course.uri'} =~ m|([^/]+)$|;
460: $name_of_map = $1;
461: }
462: return ($name_of_resourse,$name_of_sequence,$name_of_map);
463:
464: }
465:
466:
467: sub latex_corrections {
468:
469: my ($number_of_columns,$result) = @_;
470:
471: # $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;
472: $result =~ s/\$number_of_columns/$number_of_columns/g;
473: $result =~ s/(\\end{document})/\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill}\\newline\\noindent\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License $1/;
474: $result =~ s/(\\end{longtable}\s*)(\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
475: $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;
476: #-- LaTeX corrections
477: my $first_comment = index($result,'<!--',0);
478: while ($first_comment != -1) {
479: my $end_comment = index($result,'-->',$first_comment);
480: substr($result,$first_comment,$end_comment-$first_comment+3) = '';
481: $first_comment = index($result,'<!--',$first_comment);
482: }
483: $result =~ s/^\s+$//gm; #remove empty lines
484: $result =~ s/(\s)(\s+)/$1/g; #removes more than one empty space
485: $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
486: $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
487: $result =~ s/{\\par }\s*\\\\/\\\\/gm;
488: $result =~ s/\\\\\s+\[/ \[/g;
489: $result =~ s/\b__+\b/\\makebox\[1 cm\]\[b\]{\\hrulefill}/g;
490: #conversion of html characters to LaTeX equivalents
491: if ($result =~ m/&(\w+|#\d+);/) {
492: $result = &character_chart($result);
493: }
494: $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
495: $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
496:
497: return $result;
498: }
499:
500:
501: sub output_data {
502: my ($r,$helper,$rparmhash) = @_;
503: my %parmhash = %$rparmhash;
504: my $bodytag=&Apache::loncommon::bodytag('Preparing Printout');
505: $r->print(<<ENDPART);
506: <html>
507: <head>
508: <title>LON-CAPA output for printing</title>
509: </head>
510: $bodytag
511: Please stand by while processing your print request, this may take some time ...
512: ENDPART
513:
514: my $format_from_helper = $helper->{'VARS'}->{'FORMAT'};
515: my ($result,$selectionmade) = ('','');
516: my $number_of_columns = 1; #used only for pages to determine the width of the cell
517: my @temporary_array=split /\|/,$format_from_helper;
518: my ($laystyle,$numberofcolumns,$papersize)=@temporary_array;
519: if ($laystyle eq 'L') {
520: $laystyle='album';
521: } else {
522: $laystyle='book';
523: }
524: my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$laystyle,$numberofcolumns);
525: my $assignment = $ENV{'form.assignment'};
526: my $LaTeXwidth;
527: if ($textwidth=~/(\d+\.?\d*)\s*cm/) {
528: $LaTeXwidth = $1*10;
529: } elsif ($textwidth=~/(\d+\.?\d*)\s*mm/) {
530: $LaTeXwidth = $1;
531: } elsif ($textwidth=~/(\d+\.?\d*)\s*in/) {
532: $LaTeXwidth = $1*25.4;
533: }
534: $LaTeXwidth.=' mm';
535:
536: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'current_document') {
537: #-- single document - problem, page, html, xml, ...
538: my $currentURL;
539: if ($helper->{'VARS'}->{'construction'} ne '1') {
540: #prints published resource
541: $currentURL=$helper->{'VARS'}->{'postdata'};
542: } else {
543: #prints resource from the construction space
544: $currentURL=$helper->{'VARS'}->{'filename'};
545: $currentURL=~s/\/home\//\/~/;
546: $currentURL=~s/public_html\///;
547: }
548: $selectionmade = 1;
549: if ($currentURL=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
550: my %moreenv;
551: $moreenv{'request.filename'}=$currentURL;
552: my %form;
553: $form{'grade_target'}='tex';
554: $form{'textwidth'}=$LaTeXwidth;
555: my $rndseed=time;
556: $form{'rndseed'}=$rndseed;
557: &Apache::lonnet::appenv(%moreenv);
558: my $texversion=&Apache::lonnet::ssi($currentURL,%form);
559: &Apache::lonnet::delenv('form.counter');
560: &Apache::lonnet::delenv('request.filename');
561: if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
562: my %form;
563: $form{'grade_target'}='answer';
564: $form{'answer_output_mode'}='tex';
565: $form{'rndseed'}=$rndseed;
566: my $answer=&Apache::lonnet::ssi($currentURL,%form);
567: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
568: }
569: $result .= $texversion;
570: if ($currentURL=~m/\.page\s*$/) {
571: ($result,$number_of_columns) = &page_cleanup($result);
572: }
573: } else {
574: # $result='\documentclass[letterpaper]{article}\usepackage{calc}\begin{document}Printout of this type of document is currently not supported: ';
575: # if ($ENV{'form.url'}=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) {
576: # $result.=$1;
577: # } else {
578: # $result.=$ENV{'form.url'};
579: # }
580: # $result.=' \end{document}'
581: }
582: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') or
583: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') or
584: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems')) {
585: #-- produce an output string
586: my $flag_latex_header_remove = 'NO';
587: my $flag_page_in_sequence = 'NO';
588: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
589: for (my $i=0;$i<=$#master_seq;$i++) {
590: $master_seq[$i]=~/___\d+___(.*)$/;
591: my $urlp='/res/'.$1;
592: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') {
593: $selectionmade = 2;
594: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') {
595: $selectionmade = 3;
596: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') {
597: $selectionmade = 4;
598: }
599: my %form;
600: $form{'grade_target'}='tex';
601: $form{'textwidth'}=$LaTeXwidth;
602: $form{'symb'}=$master_seq[$i];
603: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
604: #&Apache::lonnet::logthis("Trying to get $urlp with symb $master_seq[$i]");
605: my $texversion=&Apache::lonnet::ssi($urlp,%form);
606: if ($urlp=~/\.page$/) {
607: ($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
608: if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;}
609: $texversion =~ s/\\end{document}\d*/\\end{document}/;
610: $flag_page_in_sequence = 'YES';
611: }
612: if ($flag_latex_header_remove ne 'NO') {
613: $texversion = &latex_header_footer_remove($texversion);
614: } else {
615: $texversion =~ s/\\end{document}//;
616: }
617: if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
618: my %form;
619: $form{'grade_target'}='answer';
620: $form{'answer_output_mode'}='tex';
621: my $answer=&Apache::lonnet::ssi($urlp,%form);
622: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
623: }
624: $result .= $texversion;
625: $flag_latex_header_remove = 'YES';
626: }
627: &Apache::lonnet::delenv('form.counter');
628: if ($flag_page_in_sequence eq 'YES') {$result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;}
629: $result .= '\end{document}';
630: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') {
631: #-- prints assignments for whole class or for selected students
632: $selectionmade=5;
633: my @students=split /\|\|\|/, $helper->{'VARS'}->{'STUDENTS'};
634: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
635: #loop over students
636: my $flag_latex_header_remove = 'NO';
637: my %moreenv;
638: $moreenv{'form.textwidth'}=$LaTeXwidth;
639: &Apache::lonnet::appenv(%moreenv);
640: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1);
641: foreach my $person (@students) {
642: my $current_output = '';
643: # my ($usersection,$username,$userdomain) = split /:/,$person;
644: my ($username,$userdomain) = split /:/,$person;
645: my $fullname = &get_name($username,$userdomain);
646: #goes through all resources, checks if they are available for current student, and produces output
647: foreach my $curresline (@master_seq) {
648: if ($curresline=~ m/\.(problem|exam|quiz|assess|survey|form|library)$/) {
649: my ($map,$id,$res_url) = split(/___/,$curresline);
650: if (&Apache::lonnet::allowed('bre',$res_url)) {
651: my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,
652: $ENV{'request.course.id'},'tex');
653: if ($flag_latex_header_remove eq 'YES') {
654: $rendered = &latex_header_footer_remove($rendered);
655: } else {
656: $rendered =~ s/\\end{document}//;
657: }
658: if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
659: my %form;
660: $form{'answer_output_mode'}='tex';
661: my $ansrendered = &Apache::loncommon::get_student_answers($curresline,$username,$userdomain,
662: $ENV{'request.course.id'},%form);
663: $rendered=~s/(\\keephidden{ENDOFPROBLEM})/$ansrendered$1/;
664: }
665: $current_output .= $rendered;
666: }
667: $flag_latex_header_remove = 'YES';
668: }
669: }
670: my $courseidinfo = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
671: if ($current_output=~/\\documentclass/) {
672: $current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\lhead{\\textit{\\textbf{$fullname}} - $courseidinfo \\hfill \\thepage \\\\ \\textit{$helper->{VARS}->{'assignment'}}}\\vskip 3 mm /;
673: } else {
674: my $blanspages = '';
675: for (my $j=0;$j<$helper->{'VARS'}->{'EMPTY_PAGES'};$j++) {$blanspages.='\clearpage\strut\clearpage';}
676: $current_output = '\strut\\newline\\noindent\\makebox[\\textwidth/$number_of_columns][b]{\\hrulefill}\\newline\\noindent{\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License }\\newpage '.$blanspages.'\setcounter{page}{1}\noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$fullname.'}} - '.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$helper->{VARS}->{'assignment'}.'}}} \vskip -5 mm '.$current_output;
677: }
678: $result .= $current_output;
679: &Apache::lonnet::delenv('form.counter');
680: &Apache::lonxml::init_counter();
681: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
682: 'last student '.$fullname);
683: }
684: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
685: $result .= '\end{document}';
686: &Apache::lonnet::delenv('form.textwidth');
687: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_from_directory') {
688: #prints selected problems from the subdirectory
689: $selectionmade = 6;
690: my @list_of_files=split /\|\|\|/, $helper->{'VARS'}->{'FILES'};
691: @list_of_files=sort @list_of_files;
692: my $flag_latex_header_remove = 'NO';
693: my $rndseed=time;
694: for (my $i=0;$i<=$#list_of_files;$i++) {
695: my $urlp = $list_of_files[$i];
696: if ($urlp=~/\//) {
697: my %form;
698: $form{'grade_target'}='tex';
699: $form{'textwidth'}=$LaTeXwidth;
700: $form{'rndseed'}=$rndseed;
701: if ($urlp =~ m|/home/([^/]+)/public_html|) {
702: $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
703: } else {
704: $urlp =~ s|^/home/httpd/html||;
705: }
706: my $texversion=&Apache::lonnet::ssi($urlp,%form);
707: if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
708: my %form;
709: $form{'grade_target'}='answer';
710: $form{'answer_output_mode'}='tex';
711: $form{'rndseed'}=$rndseed;
712: my $answer=&Apache::lonnet::ssi($urlp,%form);
713: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
714: }
715: #this chunck is responsible for printing the path to problem
716: my $newurlp = '';
717: my $HowMany = length($urlp)*2;
718: if ($HowMany > $LaTeXwidth) {
719: my @temporrary = split '/',$urlp;
720: my $HowManyNew = 0;
721: for (my $ii=0;$ii<=$#temporrary;$ii++) {
722: if ($temporrary[$ii] ne '') {
723: $HowManyNew += length($temporrary[$ii])*2;
724: if ($HowManyNew < $LaTeXwidth ) {
725: $newurlp .= '/'.$temporrary[$ii];
726: } else {
727: $HowManyNew = 0;
728: $newurlp .= '|\vskip -1 mm \noindent \verb|';
729: $ii--;
730: }
731: }
732: }
733: }
734: $texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 {\\small\\noindent\\verb|$newurlp\|\\vskip 0 mm}/;
735: if ($flag_latex_header_remove ne 'NO') {
736: $texversion = &latex_header_footer_remove($texversion);
737: } else {
738: $texversion =~ s/\\end{document}//;
739: }
740: $result .= $texversion;
741: }
742: $flag_latex_header_remove = 'YES';
743: }
744: if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\typeout)/ RANDOM SEED IS $rndseed $1/;}
745: $result .= '\end{document}';
746: }
747: #-------------------------------------------------------- corrections for the different page formats
748: $result = &page_format_transformation($papersize,$laystyle,$numberofcolumns,$helper->{'VARS'}->{'PRINT_TYPE'},$result,$helper->{VARS}->{'assignment'});
749: $result = &latex_corrections($number_of_columns,$result);
750: #changes page's parameters for the one column output
751: # if ($numberofcolumns == 1) {
752: # $result =~ s/\\textwidth= 9cm/\\textwidth= $ENV{'form.width'}/;
753: # $result =~ s/\\textheight 25\.9cm/\\textheight $ENV{'form.height'}/;
754: # $result =~ s/\\evensidemargin = -0\.57in/\\evensidemargin= $ENV{'form.leftmargin'}/;
755: # $result =~ s/\\oddsidemargin = -0\.57in/\\oddsidemargin= $ENV{'form.leftmargin'}/;
756: # }
757: #-- writing .tex file in prtspool
758: my $temp_file;
759: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".time."_".rand(10000000).".tex";
760: unless ($temp_file = Apache::File->new('>'.$filename)) {
761: $r->log_error("Couldn't open $filename for output $!");
762: return SERVER_ERROR;
763: }
764: print $temp_file $result;
765:
766: #<meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle&$numberofcolumns&$selectionmade">
767: $r->print(<<FINALEND);
768: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle&$numberofcolumns&$selectionmade">
769: </body>
770: </html>
771: FINALEND
772: }
773:
774:
775:
776: sub handler {
777:
778: my $r = shift;
779: my $helper;
780:
781: # my $loaderror=&Apache::lonnet::overloaderror($r);
782: # if ($loaderror) { return $loaderror; }
783: # $loaderror=
784: # &Apache::lonnet::overloaderror($r,
785: # $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
786: # if ($loaderror) { return $loaderror; }
787:
788: my $result = printHelper($r);
789: if (!ref($result)) {
790: return $result;
791: }
792: $helper = $result;
793:
794: # my $key;
795: # foreach $key (keys %{$helper->{'VARS'}}) {
796: # $r->print(' '.$key.'->'.$helper->{'VARS'}->{$key}.'<-<br />');
797: # }
798: # return OK;
799:
800: my %parmhash=&Apache::lonnet::coursedescription($ENV{'request.course.id'});
801:
802:
803: &output_data($r,$helper,\%parmhash);
804: return OK;
805: }
806:
807: use Apache::lonhelper;
808:
809: sub printHelper {
810: my $r = shift;
811:
812: if ($ENV{'request.course.id'}) {
813: my $fn=$ENV{'request.course.fn'};
814: tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640);
815: }
816:
817: if ($r->header_only) {
818: if ($ENV{'browser.mathml'}) {
819: $r->content_type('text/xml');
820: } else {
821: $r->content_type('text/html');
822: }
823: $r->send_http_header;
824: return OK;
825: }
826:
827: # Send header, nocache
828: if ($ENV{'browser.mathml'}) {
829: $r->content_type('text/xml');
830: } else {
831: $r->content_type('text/html');
832: }
833: &Apache::loncommon::no_cache($r);
834: $r->send_http_header;
835: $r->rflush();
836:
837: # Unfortunately, this helper is so complicated we have to
838: # write it by hand
839:
840: Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
841:
842: my $helper = Apache::lonhelper::helper->new("Printing Helper");
843: $helper->declareVar('symb');
844: $helper->declareVar('postdata');
845: $helper->declareVar('filename');
846: $helper->declareVar('construction');
847: $helper->declareVar('assignment');
848:
849: # This will persistently load in the data we want from the
850: # very first screen.
851: # Detect whether we're coming from construction space
852: if ($ENV{'form.postdata'} =~ /http:\/\// ) {
853: $ENV{'form.postdata'} =~ /http:\/\/[^\/]+\/~([^\/]+)\/(.*)/;
854: $helper->{VARS}->{'filename'} = "/home/$1/public_html/$2";
855: $helper->{VARS}->{'construction'} = 1;
856: } else {
857: if ($ENV{'form.postdata'}) {
858: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($ENV{'form.postdata'});
859: }
860: if ($ENV{'form.symb'}) {
861: $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
862: }
863: if ($ENV{'form.url'}) {
864: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
865: }
866: }
867:
868: if ($ENV{'form.symb'}) {
869: $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
870: }
871: if ($ENV{'form.url'}) {
872: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
873:
874: }
875:
876: my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu;
877: if ($sequenceTitle ne '') {$helper->{VARS}->{'assignment'}=$sequenceTitle;}
878:
879:
880: # Extract map
881: my $symb = $helper->{VARS}->{'symb'};
882: my ($map, $id, $url);
883: my $subdir;
884:
885: # Get the resource name from construction space
886: if ($helper->{VARS}->{'construction'}) {
887: $resourceTitle = substr($helper->{VARS}->{'filename'},
888: rindex($helper->{VARS}->{'filename'}, '/')+1);
889: $subdir = substr($helper->{VARS}->{'filename'},
890: 0, rindex($helper->{VARS}->{'filename'}, '/') + 1);
891: } else {
892: ($map, $id, $url) = split(/___/, $symb);
893: $helper->{VARS}->{'postdata'} = Apache::lonnet::clutter($url);
894:
895: if (!$resourceTitle) { # if the resource doesn't have a title, use the filename
896: my $url = $helper->{VARS}->{'postdata'};
897: $resourceTitle = substr($url, rindex($url, '/') + 1);
898: }
899: $subdir = &Apache::lonnet::filelocation("", $url);
900: }
901:
902: Apache::lonhelper::registerHelperTags();
903:
904: # "Delete everything after the last slash."
905: $subdir =~ s|/[^/]+$||;
906: if (not $helper->{VARS}->{'construction'}) {
907: $subdir='/home/httpd/html/res/'.$subdir;
908: }
909: # "Remove all duplicate slashes."
910: $subdir =~ s|/+|/|g;
911:
912: # What can be printed is a very dynamic decision based on
913: # lots of factors. So we need to dynamically build this list.
914: # To prevent security leaks, states are only added to the wizard
915: # if they can be reached, which ensures manipulating the form input
916: # won't allow anyone to reach states they shouldn't have permission
917: # to reach.
918:
919: # printChoices is tracking the kind of printing the user can
920: # do, and will be used in a choices construction later.
921: # In the meantime we will be adding states and elements to
922: # the helper by hand.
923: my $printChoices = [];
924: my $paramHash;
925:
926: if ($resourceTitle) {
927: push @{$printChoices}, ["<b>$resourceTitle</b> (prints what you just saw on the screen)", 'current_document', 'PAGESIZE'];
928: }
929:
930: # $r->print($helper->{VARS}->{'postdata'});
931:
932: # If we're in a sequence...
933: if ($helper->{'VARS'}->{'construction'} ne '1') {
934: # Allow problems from sequence
935: push @{$printChoices}, ["Problem(s) from <b>$sequenceTitle</b>", 'map_problems', 'CHOOSE_PROBLEMS'];
936: # Allow all resources from sequence
937: push @{$printChoices}, ["Everything (problem(s), page(s), html/xml file(s)) from <b>$sequenceTitle</b>", 'map_problems_pages', 'CHOOSE_PROBLEMS_HTML'];
938:
939: my $isProblem = '$res->is_problem();';
940: my $isProblemOrMap = '$res->is_problem() || $res->is_map()';
941: my $isNotMap = '!$res->is_map();';
942: my $symb = '$res->symb();';
943: my $helperFragment = <<HELPERFRAGMENT;
944: <state name="CHOOSE_PROBLEMS" title="Select Problem(s) to print">
945: <message>(mark them then click "next" button) <br /></message>
946: <resource variable="RESOURCES" multichoice="1" toponly='1'>
947: <nextstate>PAGESIZE</nextstate>
948: <filterfunc>return $isProblem</filterfunc>
949: <mapurl>$map</mapurl>
950: <valuefunc>return $symb</valuefunc>
951: </resource>
952: </state>
953:
954: <state name="CHOOSE_PROBLEMS_HTML" title="Select Resource(s) to print">
955: <message>(mark them then click "next" button) <br /></message>
956: <resource variable="RESOURCES" multichoice="1" toponly='1'>
957: <nextstate>PAGESIZE</nextstate>
958: <filterfunc>return $isNotMap;</filterfunc>
959: <mapurl>$map</mapurl>
960: <valuefunc>return $symb</valuefunc>
961: </resource>
962: </state>
963: HELPERFRAGMENT
964:
965: &Apache::lonxml::xmlparse($r, 'helper', $helperFragment);
966: }
967:
968: # If the user is priviledged, allow them to print all
969: # problems in the course, optionally for selected students
970: if (($ENV{'request.role'}=~m/^cc\./ or $ENV{'request.role'}=~m/^in\./ or $ENV{'request.role'}=~m/^ta\./) and ($helper->{VARS}->{'postdata'}=~/\/res\//)) {
971: push @{$printChoices}, ['<b>Problems</b> in this course', 'all_problems', 'ALL_PROBLEMS'];
972: push @{$printChoices}, ["Problems from <b>$sequenceTitle</b> for selected students", 'problems_for_students', 'CHOOSE_STUDENTS'];
973:
974: my $isProblem = '$res->is_problem();';
975: my $isProblemOrMap = '$res->is_problem() || $res->is_map()';
976: my $symb = '$res->symb();';
977: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
978: <state name="ALL_PROBLEMS" title="Select Problem(s) to print">
979: <message>(mark them then click "next" button) <br /></message>
980: <resource variable="RESOURCES" multichoice="1" suppressEmptySequences='1'>
981: <nextstate>PAGESIZE</nextstate>
982: <filterfunc>return $isProblemOrMap</filterfunc>
983: <choicefunc>return $isProblem</choicefunc>
984: <valuefunc>return $symb</valuefunc>
985: </resource>
986: </state>
987:
988: <state name="CHOOSE_STUDENTS" title="Choose Students whose assignments you want to print">
989: <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" />
990: <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
991: <resource variable="RESOURCES" multichoice="1">
992: <filterfunc>return $isProblem</filterfunc>
993: <mapurl>$map</mapurl>
994: <valuefunc>return $symb</valuefunc>
995: </resource>
996: <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
997: <choices variable="EMPTY_PAGES">
998: <choice computer='0'>Start each student's assignment on a new page (add a pagefeed after each assignment)</choice>
999: <choice computer='1'>Add one empty page after each student's assignment</choice>
1000: <choice computer='2'>Add two empty pages after each student's assignment</choice>
1001: </choices>
1002: </state>
1003: CHOOSE_STUDENTS
1004: }
1005:
1006: # FIXME: That RE should come from a library somewhere.
1007: if (((&Apache::lonnet::allowed('bre',$subdir) eq 'F') and ($helper->{VARS}->{'postdata'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)/)) or defined $helper->{'VARS'}->{'construction'}) {
1008: push @{$printChoices}, ["Problems from current subdirectory <b>$subdir</b>", 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];
1009:
1010: my $f = '$filename';
1011: my $xmlfrag = <<CHOOSE_FROM_SUBDIR;
1012: <state name="CHOOSE_FROM_SUBDIR" title="Select File(s) from <b><small>$subdir</small></b> to print">
1013: <message>(mark them then click "next" button) <br /></message>
1014: <files variable="FILES" multichoice='1'>
1015: <nextstate>PAGESIZE</nextstate>
1016: <filechoice>return '$subdir';</filechoice>
1017: CHOOSE_FROM_SUBDIR
1018:
1019: $xmlfrag .= <<'CHOOSE_FROM_SUBDIR';
1020: <filefilter>return $filename =~
1021: m/^[^\.]+\.(problem|exam|quiz|assess|survey|form|library)$/;
1022: </filefilter>
1023: </files>
1024: </state>
1025: CHOOSE_FROM_SUBDIR
1026: &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
1027: }
1028:
1029: # Generate the first state, to select which resources get printed.
1030: Apache::lonhelper::state->new("START", "What do you want to print? Make a choice.");
1031: $paramHash = Apache::lonhelper::getParamHash();
1032: $paramHash->{MESSAGE_TEXT} = "";
1033: Apache::lonhelper::message->new();
1034: $paramHash = Apache::lonhelper::getParamHash();
1035: $paramHash->{'variable'} = 'PRINT_TYPE';
1036: $helper->declareVar('PRINT_TYPE');
1037: $paramHash->{CHOICES} = $printChoices;
1038: Apache::lonhelper::choices->new();
1039:
1040: if (($ENV{'request.role.adv'} and &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) or
1041: ($helper->{VARS}->{'construction'} eq '1')) {
1042: $paramHash = Apache::lonhelper::getParamHash();
1043: $paramHash->{MESSAGE_TEXT} = "<br /><big><b><i>Next option is available only for advanced users:</i></b></big><br />";
1044: Apache::lonhelper::message->new();
1045: $paramHash = Apache::lonhelper::getParamHash();
1046: $paramHash->{'variable'} = 'ANSWER_TYPE';
1047: $helper->declareVar('ANSWER_TYPE');
1048: $paramHash->{CHOICES} = [
1049: ['Print without answer', 'yes'],
1050: ['Print with answers', 'no'] ];
1051: Apache::lonhelper::choices->new();
1052: }
1053:
1054: Apache::lonprintout::page_format_state->new("FORMAT");
1055:
1056: # Generate the PAGESIZE state which will offer the user the margin
1057: # choices if they select one column
1058: Apache::lonhelper::state->new("PAGESIZE", "Set Margins");
1059: Apache::lonprintout::page_size_state->new('pagesize', 'FORMAT', 'FINAL');
1060:
1061:
1062: $helper->process();
1063:
1064: # MANUAL BAILOUT CONDITION:
1065: # If we're in the "final" state, bailout and return to handler
1066: if ($helper->{STATE} eq 'FINAL') {
1067: return $helper;
1068: }
1069:
1070: $r->print($helper->display());
1071:
1072: Apache::lonhelper::unregisterHelperTags();
1073:
1074: untie %hash;
1075:
1076: return OK;
1077: }
1078:
1079:
1080: 1;
1081:
1082: package Apache::lonprintout::page_format_state;
1083:
1084: =pod
1085:
1086: =head1 Helper element: page_format_state
1087:
1088: See lonhelper.pm documentation for discussion of the helper framework.
1089:
1090: Apache::lonprintout::page_format_state is an element that gives the
1091: user an opportunity to select the page layout they wish to print
1092: with: Number of columns, portrait/landscape, and paper size. If you
1093: want to change the paper size choices, change the @paperSize array
1094: contents in this package.
1095:
1096: page_format_state is always directly invoked in lonprintout.pm, so there
1097: is no tag interface. You actually pass parameters to the constructor.
1098:
1099: =over 4
1100:
1101: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
1102:
1103: =back
1104:
1105: =cut
1106:
1107: use Apache::lonhelper;
1108:
1109: no strict;
1110: @ISA = ("Apache::lonhelper::element");
1111: use strict;
1112:
1113: my $maxColumns = 2;
1114: my @paperSize = ("Letter [8 1/2x11 in]", "Legal [8 1/2x14 in]",
1115: "Ledger/Tabloid [11x17 in]", "Executive [7 1/2x10 in]",
1116: "A2 [420x594 mm]", "A3 [297x420 mm]", "A4 [210x297 mm]",
1117: "A5 [148x210 mm]", "A6 [105x148 mm]" );
1118:
1119: # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |
1120: # Paper type
1121:
1122: sub new {
1123: my $self = Apache::lonhelper::element->new();
1124:
1125: shift;
1126:
1127: $self->{'variable'} = shift;
1128: my $helper = Apache::lonhelper::getHelper();
1129: $helper->declareVar($self->{'variable'});
1130: bless($self);
1131: return $self;
1132: }
1133:
1134: sub render {
1135: my $self = shift;
1136: my $helper = Apache::lonhelper::getHelper();
1137: my $result = '';
1138: my $var = $self->{'variable'};
1139:
1140: $result .= <<STATEHTML;
1141:
1142: <p><big><i><b>What page format do you prefer?</b></i></big></p>
1143: <table cellpadding="3">
1144: <tr>
1145: <td align="center"><b>Page layout</b></td>
1146: <td align="center"><b>Number of columns</b></td>
1147: <td align="center"><b>Paper type</b></td>
1148: </tr>
1149: <tr>
1150: <td>
1151: <input type="radio" name="${var}.layout" value="L" /> Landscape<br />
1152: <input type="radio" name="${var}.layout" value="P" checked='1' /> Portrait
1153: </td>
1154: <td align="center">
1155: <select name="${var}.cols">
1156: STATEHTML
1157:
1158: my $i;
1159: for ($i = 1; $i <= $maxColumns; $i++) {
1160: if ($i == 2) {
1161: $result .= "<option value='$i' selected>$i</option>\n";
1162: } else {
1163: $result .= "<option value='$i'>$i</option>\n";
1164: }
1165: }
1166:
1167: $result .= "</select></td><td>\n";
1168: $result .= "<select name='${var}.paper'>\n";
1169:
1170: $i = 0;
1171: foreach (@paperSize) {
1172: if ($i == 0) {
1173: $result .= "<option selected value='$i'>" . $paperSize[$i] . "</option>\n";
1174: } else {
1175: $result .= "<option value='$i'>" . $paperSize[$i] . "</option>\n";
1176: }
1177: $i++;
1178: }
1179:
1180: $result .= "</select></td></tr></table>";
1181: return $result;
1182: }
1183:
1184: sub postprocess {
1185: my $self = shift;
1186:
1187: my $var = $self->{'variable'};
1188: my $helper = Apache::lonhelper->getHelper();
1189: $helper->{VARS}->{$var} =
1190: $ENV{"form.$var.layout"} . '|' . $ENV{"form.$var.cols"} . '|' .
1191: $ENV{"form.$var.paper"};
1192: return 1;
1193: }
1194:
1195: 1;
1196:
1197: package Apache::lonprintout::page_size_state;
1198:
1199: =pod
1200:
1201: =head1 Helper element: page_size_state
1202:
1203: See lonhelper.pm documentation for discussion of the helper framework.
1204:
1205: Apache::lonprintout::page_size_state is an element that gives the
1206: user the opportunity to further refine the page settings if they
1207: select a single-column page.
1208:
1209: page_size_state is always directly invoked in lonprintout.pm, so there
1210: is no tag interface. You actually pass parameters to the constructor.
1211:
1212: =over 4
1213:
1214: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
1215:
1216: =back
1217:
1218: =cut
1219:
1220: use Apache::lonhelper;
1221:
1222: no strict;
1223: @ISA = ("Apache::lonhelper::element");
1224: use strict;
1225:
1226:
1227:
1228: sub new {
1229: my $self = Apache::lonhelper::element->new();
1230:
1231: shift; # disturbs me (probably prevents subclassing) but works (drops
1232: # package descriptor)... - Jeremy
1233:
1234: $self->{'variable'} = shift;
1235: my $helper = Apache::lonhelper::getHelper();
1236: $helper->declareVar($self->{'variable'});
1237:
1238: # The variable name of the format element, so we can look into
1239: # $helper->{VARS} to figure out whether the columns are one or two
1240: $self->{'formatvar'} = shift;
1241:
1242: # The state to transition to after selection, or after discovering
1243: # the cols are not set to 1
1244: $self->{NEXTSTATE} = shift;
1245: bless($self);
1246: return $self;
1247: }
1248:
1249: sub render {
1250: my $self = shift;
1251: my $helper = Apache::lonhelper::getHelper();
1252: my $result = '';
1253: my $var = $self->{'variable'};
1254:
1255: if (defined $self->{ERROR_MSG}) {
1256: $result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br />';
1257: }
1258:
1259: $result .= <<ELEMENTHTML;
1260:
1261: <p>How should the column be formatted?</p>
1262:
1263: <table cellpadding='3'>
1264: <tr>
1265: <td align='right'><b>Width</b>:</td>
1266: <td align='left'><input type='text' name='$var.width' value='18' size='4'></td>
1267: <td align='left'>
1268: <select name='$var.widthunit'>
1269: <option>cm</option><option>in</option>
1270: </select>
1271: </td>
1272: </tr>
1273: <tr>
1274: <td align='right'><b>Height</b>:</td>
1275: <td align='left'><input type='text' name="$var.height" value="25.9" size='4'></td>
1276: <td align='left'>
1277: <select name='$var.heightunit'>
1278: <option>cm</option><option>in</option>
1279: </select>
1280: </td>
1281: </tr>
1282: <tr>
1283: <td align='right'><b>Left margin</b>:</td>
1284: <td align='left'><input type='text' name='$var.lmargin' value='-1.5' size='4'></td>
1285: <td align='left'>
1286: <select name='$var.lmarginunit'>
1287: <option>cm</option><option>in</option>
1288: </select>
1289: </td>
1290: </tr>
1291: </table>
1292:
1293: <p>Hint: Some instructors like to leave scratch space for the student by
1294: making the width much smaller then the width of the page.</p>
1295:
1296: ELEMENTHTML
1297:
1298: return $result;
1299: }
1300:
1301: # If the user didn't select 1 column, skip this state.
1302: sub preprocess {
1303: my $self = shift;
1304: my $helper = Apache::lonhelper::getHelper();
1305:
1306: my $format = $helper->{VARS}->{$self->{'formatvar'}};
1307: if (substr($format, 2, 1) ne '1') {
1308: $helper->changeState($self->{NEXTSTATE});
1309: }
1310:
1311: return 1;
1312: }
1313:
1314: sub postprocess {
1315: my $self = shift;
1316:
1317: my $var = $self->{'variable'};
1318: my $helper = Apache::lonhelper->getHelper();
1319: my $width = $helper->{VARS}->{$var .'.width'} = $ENV{"form.${var}.width"};
1320: my $height = $helper->{VARS}->{$var .'.height'} = $ENV{"form.${var}.height"};
1321: my $lmargin = $helper->{VARS}->{$var .'.lmargin'} = $ENV{"form.${var}.lmargin"};
1322: $helper->{VARS}->{$var .'.widthunit'} = $ENV{"form.${var}.widthunit"};
1323: $helper->{VARS}->{$var .'.heightunit'} = $ENV{"form.${var}.heightunit"};
1324: $helper->{VARS}->{$var .'.lmarginunit'} = $ENV{"form.${var}.lmarginunit"};
1325:
1326: my $error = '';
1327:
1328: # /^-?[0-9]+(\.[0-9]*)?$/ -> optional minus, at least on digit, followed
1329: # by an optional period, followed by digits, ending the string
1330:
1331: if ($width !~ /^-?[0-9]+(\.[0-9]*)?$/) {
1332: $error .= "Invalid width; please type only a number.<br />\n";
1333: }
1334: if ($height !~ /^-?[0-9]+(\.[0-9]*)?$/) {
1335: $error .= "Invalid height; please type only a number.<br />\n";
1336: }
1337: if ($lmargin !~ /^-?[0-9]+(\.[0-9]*)?$/) {
1338: $error .= "Invalid left margin; please type only a number.<br />\n";
1339: }
1340:
1341: if (!$error) {
1342: Apache::lonhelper::getHelper()->changeState($self->{NEXTSTATE});
1343: return 1;
1344: } else {
1345: $self->{ERROR_MSG} = $error;
1346: return 0;
1347: }
1348: }
1349:
1350:
1351:
1352: __END__
1353:
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