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[LON-CAPA] /
loncom /
interface /
lonprintout.pm
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Wed Aug 13 15:28:57 2003 UTC (21 years ago) by
sakharuk
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Table of contents can be now printed for the subdirectories, sequences, all problems from the course. Needs some additional work to simplify the original printing starting menu (currently too overcomplicated - too many switches) and I did not check yet how the table of contents works for particular students.
1: # The LearningOnline Network
2: # Printout
3: #
4: # $Id: lonprintout.pm,v 1.209 2003/08/13 15:28:57 sakharuk 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/&(omicron|\#959);/o/g;
290: $result =~ s/&(pi|\#960);/\$\\pi \$/g;
291: $result =~ s/&(rho|\#961);/\$\\rho \$/g;
292: $result =~ s/&(sigma|\#963);/\$\\sigma \$/g;
293: $result =~ s/&(tau|\#964);/\$\\tau \$/g;
294: $result =~ s/&(upsilon|\#965);/\$\\upsilon \$/g;
295: $result =~ s/&(phi|\#966);/\$\\phi \$/g;
296: $result =~ s/&(chi|\#967);/\$\\chi \$/g;
297: $result =~ s/&(psi|\#968);/\$\\psi \$/g;
298: $result =~ s/&(omega|\#969);/\$\\omega \$/g;
299: $result =~ s/&(thetasym|\#977);/\$\\vartheta \$/g;
300: $result =~ s/&(piv|\#982);/\$\\varpi \$/g;
301: $result =~ s/&(Alpha|\#913);/A/g;
302: $result =~ s/&(Beta|\#914);/B/g;
303: $result =~ s/&(Gamma|\#915);/\$\\Gamma \$/g;
304: $result =~ s/&(Delta|\#916);/\$\\Delta \$/g;
305: $result =~ s/&(Epsilon|\#917);/E/g;
306: $result =~ s/&(Zeta|\#918);/Z/g;
307: $result =~ s/&(Eta|\#919);/H/g;
308: $result =~ s/&(Theta|\#920);/\$\\Theta \$/g;
309: $result =~ s/&(Iota|\#921);/I/g;
310: $result =~ s/&(Kappa|\#922);/K/g;
311: $result =~ s/&(Lambda|\#923);/\$\\Lambda \$/g;
312: $result =~ s/&(Mu|\#924);/M/g;
313: $result =~ s/&(Nu|\#925);/N/g;
314: $result =~ s/&(Xi|\#926);/\$\\Xi \$/g;
315: $result =~ s/&(Omicron|\#927);/O/g;
316: $result =~ s/&(Pi|\#928);/\$\\Pi \$/g;
317: $result =~ s/&(Rho|\#929);/P/g;
318: $result =~ s/&(Sigma|\#931);/\$\\Sigma \$/g;
319: $result =~ s/&(Tau|\#932);/T/g;
320: $result =~ s/&(Upsilon|\#933);/\$\\Upsilon \$/g;
321: $result =~ s/&(Phi|\#934);/\$\\Phi \$/g;
322: $result =~ s/&(Chi|\#935);/X/g;
323: $result =~ s/&(Psi|\#936);/\$\\Psi \$/g;
324: $result =~ s/&(Omega|\#937);/\$\\Omega \$/g;
325: #Arrows (extended HTML 4.01)
326: $result =~ s/&(larr|\#8592);/\$\\leftarrow \$/g;
327: $result =~ s/&(uarr|\#8593);/\$\\uparrow \$/g;
328: $result =~ s/&(rarr|\#8594);/\$\\rightarrow \$/g;
329: $result =~ s/&(darr|\#8595);/\$\\downarrow \$/g;
330: $result =~ s/&(harr|\#8596);/\$\\leftrightarrow \$/g;
331: $result =~ s/&(lArr|\#8656);/\$\\Leftarrow \$/g;
332: $result =~ s/&(uArr|\#8657);/\$\\Uparrow \$/g;
333: $result =~ s/&(rArr|\#8658);/\$\\Rightarrow \$/g;
334: $result =~ s/&(dArr|\#8659);/\$\\Downarrow \$/g;
335: $result =~ s/&(hArr|\#8660);/\$\\Leftrightarrow \$/g;
336: #Mathematical Operators (extended HTML 4.01)
337: $result =~ s/&(forall|\#8704);/\$\\forall \$/g;
338: $result =~ s/&(part|\#8706);/\$\\partial \$/g;
339: $result =~ s/&(exist|\#8707);/\$\\exists \$/g;
340: $result =~ s/&(empty|\#8709);/\$\\emptyset \$/g;
341: $result =~ s/&(nabla|\#8711);/\$\\nabla \$/g;
342: $result =~ s/&(isin|\#8712);/\$\\in \$/g;
343: $result =~ s/&(notin|\#8713);/\$\\notin \$/g;
344: $result =~ s/&(ni|\#8715);/\$\\ni \$/g;
345: $result =~ s/&(prod|\#8719);/\$\\prod \$/g;
346: $result =~ s/&(sum|\#8721);/\$\\sum \$/g;
347: $result =~ s/&(minus|\#8722);/\$-\$/g;
348: $result =~ s/&(lowast|\#8727);/\$*\$/g;
349: $result =~ s/&(radic|\#8730);/\$\\surd \$/g;
350: $result =~ s/&(prop|\#8733);/\$\\propto \$/g;
351: $result =~ s/&(infin|\#8734);/\$\\infty \$/g;
352: $result =~ s/&(ang|\#8736);/\$\\angle \$/g;
353: $result =~ s/&(and|\#8743);/\$\\wedge \$/g;
354: $result =~ s/&(or|\#8744);/\$\\vee \$/g;
355: $result =~ s/&(cap|\#8745);/\$\\cap \$/g;
356: $result =~ s/&(cup|\#8746);/\$\\cup \$/g;
357: $result =~ s/&(int|\#8747);/\$\\int \$/g;
358: $result =~ s/&(sim|\#8764);/\$\\sim \$/g;
359: $result =~ s/&(cong|\#8773);/\$\\cong \$/g;
360: $result =~ s/&(asymp|\#8776);/\$\\approx \$/g;
361: $result =~ s/&(ne|\#8800);/\$\\not= \$/g;
362: $result =~ s/&(equiv|\#8801);/\$\\equiv \$/g;
363: $result =~ s/&(le|\#8804);/\$\\leq \$/g;
364: $result =~ s/&(ge|\#8805);/\$\\geq \$/g;
365: $result =~ s/&(sub|\#8834);/\$\\subset \$/g;
366: $result =~ s/&(sup|\#8835);/\$\\supset \$/g;
367: $result =~ s/&(nsub|\#8836);/\$\\not\\subset \$/g;
368: $result =~ s/&(sube|\#8838);/\$\\subseteq \$/g;
369: $result =~ s/&(supe|\#8839);/\$\\supseteq \$/g;
370: $result =~ s/&(oplus|\#8853);/\$\\oplus \$/g;
371: $result =~ s/&(otimes|\#8855);/\$\\otimes \$/g;
372: $result =~ s/&(perp|\#8869);/\$\\perp \$/g;
373: $result =~ s/&(sdot|\#8901);/\$\\cdot \$/g;
374: #Geometric Shapes (extended HTML 4.01)
375: $result =~ s/&(loz|\#9674);/\$\\Diamond \$/g;
376: #Miscellaneous Symbols (extended HTML 4.01)
377: $result =~ s/&(spades|\#9824);/\$\\spadesuit \$/g;
378: $result =~ s/&(clubs|\#9827);/\$\\clubsuit \$/g;
379: $result =~ s/&(hearts|\#9829);/\$\\heartsuit \$/g;
380: $result =~ s/&(diams|\#9830);/\$\\diamondsuit \$/g;
381: return $result;
382: }
383:
384:
385: sub page_format {
386: #
387: #Correspondence between $papersize variable and real paper format:
388: # 0 - "Letter [8 1/2x11 in]"
389: # 1 - "Legal [8 1/2x14 in]"
390: # 2 - "Ledger/Tabloid [11x17 in]"
391: # 3 - "Executive [7 1/2x10 in]"
392: # 4 - "A2 [420x594 mm]"
393: # 5 - "A3 [297x420 mm]"
394: # 6 - "A4 [210x297 mm]"
395: # 7 - "A5 [148x210 mm]"
396: # 8 - "A6 [105x148 mm]"
397: #
398: my ($papersize,$layout,$numberofcolumns) = @_;
399: my ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin) = (0,0,0,0,0);
400: if ($papersize eq '0') {
401: if ($layout eq 'book') {
402: if ($numberofcolumns == 1) {
403: $textwidth = '7.1 in'; #'18 cm';
404: $textheight = '10.2 in'; #'25.9 cm';
405: $oddoffset = '-0.57 in';
406: $evenoffset = '-0.57 in';
407: } elsif ($numberofcolumns == 2) {
408: $textwidth = '3.66 in'; #'93 mm';
409: $textheight = '10.2 in'; #'25.9 cm';
410: $oddoffset = '-0.57 in';
411: $evenoffset = '-0.57 in';
412: }
413: } elsif ($layout eq 'album') {
414: if ($numberofcolumns eq '1') {
415: $textwidth = '8.8 in';
416: $textheight = '6.8 in';
417: $oddoffset = '-40 pt';
418: $evenoffset = '-60 pt';
419: } elsif ($numberofcolumns == 2) {
420: $textwidth = '4.4 in';
421: $textheight = '6.8 in';
422: $oddoffset = '-0.5 in';
423: $evenoffset = '-1.5 in';
424: $topmargin = '3.5 in';
425: }
426: }
427: # } elsif($papersize eq '1') {
428: # } elsif($papersize eq '2') {
429: # } elsif($papersize eq '3'/) {
430: } elsif($papersize eq '6') {
431: if ($layout eq 'book') {
432: if ($numberofcolumns == 1) {
433: $textwidth = '18 cm';
434: $textheight = '28 cm';
435: $oddoffset = '-0.57 in';
436: $evenoffset = '-0.57 in';
437: } elsif ($numberofcolumns == 2) {
438: $textwidth = '96 mm';
439: $textheight = '2 cm';
440: $oddoffset = '-0.57 in';
441: $evenoffset = '-0.57 in';
442: }
443: } elsif ($layout eq 'album') {
444: if ($numberofcolumns eq '1') {
445: $textwidth = '8.5 in';
446: $textheight = '7.7 in';
447: $oddoffset = '-40 pt';
448: $evenoffset = '-60 pt';
449: } elsif ($numberofcolumns == 2) {
450: $textwidth = '3.9 in';
451: $textheight = '7.7 in';
452: $oddoffset = '-40 pt';
453: $evenoffset = '-60 pt';
454: }
455: }
456: # } elsif($papersize eq '5') {
457: # } elsif($papersize eq '4') {
458: # } elsif($papersize eq '7') {
459: # } elsif($papersize eq '8') {
460: }
461: return $textwidth,$textheight,$oddoffset,$evenoffset,$topmargin;
462: }
463:
464:
465: sub get_name {
466: my ($uname,$udom)=@_;
467: if (!defined($uname)) { $uname=$ENV{'user.name'}; }
468: if (!defined($udom)) { $uname=$ENV{'user.domain'}; }
469: my $plainname=&Apache::loncommon::plainname($uname,$udom);
470: if ($plainname=~/^\s*$/) { $plainname=$uname; }
471: return &Apache::lonxml::latex_special_symbols($plainname,undef,undef,
472: 'header');
473: }
474:
475:
476: sub page_format_transformation {
477: my ($papersize,$layout,$numberofcolumns,$choice,$text,$assignment,$tableofcontents) = @_;
478: my ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin);
479: $assignment=~s/_/ /g;
480: if ($numberofcolumns != 1) {
481: ($textwidth,$textheight,$oddoffset,$evenoffset,$topmargin) = &page_format($papersize,$layout,$numberofcolumns,$topmargin);
482: } else {
483: ($textwidth,$textheight,$oddoffset,$evenoffset) = ($ENV{'form.width'},$ENV{'form.height'},$ENV{'form.leftmargin'},$ENV{'form.leftmargin'});
484: }
485: my $name = &get_name();
486: if ($name =~ /^\s*$/) {
487: $name=&Apache::lonxml::latex_special_symbols($ENV{'user.name'},undef,
488: undef,'header');
489: }
490: my $courseidinfo = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($ENV{'course.'.$ENV{'request.course.id'}.'.description'}),'','','header');
491: if ($layout eq 'album') {
492: my $topmargintoinsert = '';
493: if ($topmargin ne '0') {$topmargintoinsert='\setlength{\topmargin}{'.$topmargin.'}';}
494: $text =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{$oddoffset}\\setlength{\\evensidemargin}{$evenoffset}$topmargintoinsert\\setlength{\\textwidth}{$textwidth}\\setlength{\\textheight}{$textheight}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt}\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{}\\lhead{\\textbf{$name} - $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}} \\begin{document}\\voffset=-0\.8 cm\\setcounter{page}{1} /;
495: } elsif ($layout eq 'book') {
496: if ($choice ne 'All class print') {
497: $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}/;
498: } else {
499: $text =~ s/\\pagestyle{fancy}\\rhead{}\\chead{}\s*\\begin{document}/\\textheight = $textheight\\oddsidemargin = $evenoffset\\evensidemargin = $evenoffset\\textwidth= $textwidth\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/\$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\pagestyle{fancy}\\rhead{}\\chead{}\\begin{document}\\voffset=-0\.8cm\\setcounter{page}{1} \\vskip 5 mm /;
500: }
501: }
502: if ($tableofcontents eq 'yes') {$text=~s/(\\begin{document})/$1 \\tableofcontents \\vskip 0\.5mm\\noindent\\makebox\[\\textwidth\/1\]\[b\]{\\hrulefill}/;}
503: return $text;
504: }
505:
506:
507: sub page_cleanup {
508: my $result = shift;
509:
510: $result =~ m/\\end{document}(\d*)$/;
511: my $number_of_columns = $1;
512: my $insert = '{';
513: for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
514: $insert .= '}';
515: $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE\\endfirsthead\\endhead/$1$insert/g;
516: $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
517: return $result,$number_of_columns;
518: }
519:
520:
521: sub details_for_menu {
522:
523: my $name_of_resourse = $hash{'title_'.$hash{'ids_'.$ENV{'form.postdata'}}};
524: my $symbolic = &Apache::lonnet::symbread($ENV{'form.postdata'});
525: my ($map,$id,$resource)=split(/___/,$symbolic);
526: $map=&Apache::lonnet::clutter($map);
527: my $name_of_sequence;
528: $name_of_sequence = $hash{'title_'.$hash{'ids_'.$map}};
529: if ($name_of_sequence =~ /^\s*$/) {
530: $map =~ m|([^/]+)$|;
531: $name_of_sequence = $1;
532: }
533: my $name_of_map = $hash{'title_'.$hash{'ids_'.&Apache::lonnet::clutter($ENV{'request.course.uri'})}};
534: if ($name_of_map =~ /^\s*$/) {
535: $ENV{'request.course.uri'} =~ m|([^/]+)$|;
536: $name_of_map = $1;
537: }
538: return ($name_of_resourse,$name_of_sequence,$name_of_map);
539:
540: }
541:
542:
543: sub latex_corrections {
544:
545: my ($number_of_columns,$result) = @_;
546:
547: # $result =~ s/\\includegraphics{/\\includegraphics\[width=\\minipagewidth\]{/g;
548: $result =~ s/\$number_of_columns/$number_of_columns/g;
549: $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/;
550: $result =~ s/(\\end{longtable}\s*)(\\strut\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g;
551: $result =~ s/(\\end{longtable}\s*)\\strut\\newline/$1/g;
552: #-- LaTeX corrections
553: my $first_comment = index($result,'<!--',0);
554: while ($first_comment != -1) {
555: my $end_comment = index($result,'-->',$first_comment);
556: substr($result,$first_comment,$end_comment-$first_comment+3) = '';
557: $first_comment = index($result,'<!--',$first_comment);
558: }
559: $result =~ s/^\s+$//gm; #remove empty lines
560: $result =~ s/(\s)(\s+)/$1/g; #removes more than one empty space
561: $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
562: $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
563: $result =~ s/{\\par }\s*\\\\/\\\\/gm;
564: $result =~ s/\\\\\s+\[/ \[/g;
565: $result =~ s/\b__+\b/\\makebox\[1 cm\]\[b\]{\\hrulefill}/g;
566: #conversion of html characters to LaTeX equivalents
567: if ($result =~ m/&(\w+|#\d+);/) {
568: $result = &character_chart($result);
569: }
570: $result =~ s/(\\end{tabular})\s*\\vskip 0 mm/$1/g;
571: $result =~ s/(\\begin{enumerate})\s*\\noindent/$1/g;
572:
573: return $result;
574: }
575:
576:
577: sub output_data {
578: my ($r,$helper,$rparmhash) = @_;
579: my %parmhash = %$rparmhash;
580: my $bodytag=&Apache::loncommon::bodytag('Preparing Printout');
581: $r->print(<<ENDPART);
582: <html>
583: <head>
584: <title>LON-CAPA output for printing</title>
585: </head>
586: $bodytag
587: Please stand by while processing your print request, this may take some time ...
588: ENDPART
589:
590: my $format_from_helper = $helper->{'VARS'}->{'FORMAT'};
591: my ($result,$selectionmade) = ('','');
592: my $number_of_columns = 1; #used only for pages to determine the width of the cell
593: my @temporary_array=split /\|/,$format_from_helper;
594: my ($laystyle,$numberofcolumns,$papersize)=@temporary_array;
595: if ($laystyle eq 'L') {
596: $laystyle='album';
597: } else {
598: $laystyle='book';
599: }
600: my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$laystyle,$numberofcolumns);
601: my $assignment = $ENV{'form.assignment'};
602: my $LaTeXwidth;
603: if ($textwidth=~/(\d+\.?\d*)\s*cm/) {
604: $LaTeXwidth = $1*10;
605: } elsif ($textwidth=~/(\d+\.?\d*)\s*mm/) {
606: $LaTeXwidth = $1;
607: } elsif ($textwidth=~/(\d+\.?\d*)\s*in/) {
608: $LaTeXwidth = $1*25.4;
609: }
610: $LaTeXwidth.=' mm';
611:
612: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'current_document') {
613: #-- single document - problem, page, html, xml, ...
614: my $currentURL;
615: if ($helper->{'VARS'}->{'construction'} ne '1') {
616: #prints published resource
617: $currentURL=$helper->{'VARS'}->{'postdata'};
618: } else {
619: #prints resource from the construction space
620: $currentURL=$helper->{'VARS'}->{'filename'};
621: $currentURL=~s/\/home\//\/~/;
622: $currentURL=~s/public_html\///;
623: if ($currentURL=~/([^?]+)/) {$currentURL=$1;}
624: }
625: $selectionmade = 1;
626: if ($currentURL=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)$/) {
627: my %moreenv;
628: $moreenv{'request.filename'}=$currentURL;
629: my %form;
630: $form{'grade_target'}='tex';
631: $form{'textwidth'}=$LaTeXwidth;
632: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
633: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
634: my $rndseed=time;
635: $form{'rndseed'}=$rndseed;
636: &Apache::lonnet::appenv(%moreenv);
637: &Apache::lonnet::delenv('form.counter');
638: &Apache::lonxml::init_counter();
639: my $texversion=&Apache::lonnet::ssi($currentURL,%form);
640: &Apache::lonnet::delenv('form.counter');
641: &Apache::lonnet::delenv('request.filename');
642: if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
643: my %form;
644: $form{'grade_target'}='answer';
645: $form{'answer_output_mode'}='tex';
646: $form{'rndseed'}=$rndseed;
647: my $answer=&Apache::lonnet::ssi($currentURL,%form);
648: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
649: }
650: $result .= $texversion;
651: if ($currentURL=~m/\.page\s*$/) {
652: ($result,$number_of_columns) = &page_cleanup($result);
653: }
654: } else {
655: $result='\documentclass[letterpaper]{article}\usepackage{calc}\begin{document}Printout of this type of document is currently not supported: ';
656: if ($currentURL=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) {
657: $result.=$1;
658: } elsif ($currentURL=~/\/ext\//) {
659: $result.=' \strut \\\\ THIS IS EXTERNAL RESOURCE WITH URL \strut \\\\ '.$currentURL.' ';
660: } else {
661: $result.=$currentURL;
662: }
663: $result.=' \end{document}'
664: }
665: } elsif (($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') or
666: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') or
667: ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems')) {
668: #-- produce an output string
669: my %form=();
670: $form{'grade_target'}='tex';
671: $form{'textwidth'}=$LaTeXwidth;
672: $form{'problem_split'}=$parmhash{'problem_stream_switch'};
673: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
674: my $flag_latex_header_remove = 'NO';
675: my $flag_page_in_sequence = 'NO';
676: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
677: my $prevassignment='';
678: &Apache::lonnet::delenv('form.counter');
679: &Apache::lonxml::init_counter();
680: for (my $i=0;$i<=$#master_seq;$i++) {
681: $master_seq[$i]=~/___\d+___(.*)$/;
682: my $urlp='/res/'.$1;
683: if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems') {
684: $selectionmade = 2;
685: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'map_problems_pages') {
686: $selectionmade = 3;
687: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') {
688: $selectionmade = 4;
689: }
690: $form{'symb'}=$master_seq[$i];
691: $master_seq[$i]=~/(.*)___\d*___/;
692: my $assignment=&Apache::lonnet::gettitle($1); #tittle of the assignment which contains this problem
693: #&Apache::lonnet::logthis("Trying to get $urlp with symb $master_seq[$i]");
694: my $texversion=&Apache::lonnet::ssi($urlp,%form);
695: if ($urlp=~/\.page$/) {
696: ($texversion,my $number_of_columns_page) = &page_cleanup($texversion);
697: if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;}
698: $texversion =~ s/\\end{document}\d*/\\end{document}/;
699: $flag_page_in_sequence = 'YES';
700: }
701: if ($flag_latex_header_remove ne 'NO') {
702: $texversion = &latex_header_footer_remove($texversion);
703: } else {
704: $texversion =~ s/\\end{document}//;
705: }
706: if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
707: my %form;
708: $form{'grade_target'}='answer';
709: $form{'answer_output_mode'}='tex';
710: my $answer=&Apache::lonnet::ssi($urlp,%form);
711: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
712: }
713: # $result .= $texversion;
714: if (($selectionmade == 4) and ($assignment ne $prevassignment) and ($i>=1)) {
715: my $name = &get_name();
716: if ($name =~ /^\s*$/) {
717: $name=&Apache::lonxml::latex_special_symbols($ENV{'user.name'},undef,
718: undef,'header');
719: }
720: my $courseidinfo = &Apache::lonxml::latex_special_symbols(&Apache::lonnet::unescape($ENV{'course.'.$ENV{'request.course.id'}.'.description'}),'','','header');
721: $prevassignment=$assignment;
722: $result .='\newpage \noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$name.'}} - '.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}} \vskip -5 mm ';
723: }
724: $result .= $texversion;
725: $flag_latex_header_remove = 'YES';
726: }
727: &Apache::lonnet::delenv('form.counter');
728: if ($flag_page_in_sequence eq 'YES') {$result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;}
729: $result .= '\end{document}';
730: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_for_students') {
731: #-- prints assignments for whole class or for selected students
732: $selectionmade=5;
733: my @students=split /\|\|\|/, $helper->{'VARS'}->{'STUDENTS'};
734: my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
735: #loop over students
736: my $flag_latex_header_remove = 'NO';
737: my %moreenv;
738: $moreenv{'form.textwidth'}=$LaTeXwidth;
739: &Apache::lonnet::appenv(%moreenv);
740: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1);
741: foreach my $person (@students) {
742: my $current_output = '';
743: # my ($usersection,$username,$userdomain) = split /:/,$person;
744: my ($username,$userdomain) = split /:/,$person;
745: my $fullname = &get_name($username,$userdomain);
746:
747: if ($parmhash{'anonymous_quiz'}=~/yes/) {$fullname=' ';} #put here something reasonable for anonymous exams or quiz
748: #goes through all resources, checks if they are available for current student, and produces output
749: &Apache::lonnet::delenv('form.counter');
750: &Apache::lonxml::init_counter();
751: foreach my $curresline (@master_seq) {
752: if ($curresline=~ m/\.(problem|exam|quiz|assess|survey|form|library)$/) {
753: my ($map,$id,$res_url) = split(/___/,$curresline);
754: if (&Apache::lonnet::allowed('bre',$res_url)) {
755: my $rendered = &Apache::loncommon::get_student_view($curresline,$username,$userdomain,
756: $ENV{'request.course.id'},'tex');
757: if ($flag_latex_header_remove eq 'YES') {
758: $rendered = &latex_header_footer_remove($rendered);
759: } else {
760: $rendered =~ s/\\end{document}//;
761: }
762: if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
763: my %form;
764: $form{'answer_output_mode'}='tex';
765: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
766: my $ansrendered = &Apache::loncommon::get_student_answers($curresline,$username,$userdomain,$ENV{'request.course.id'},%form);
767: $rendered=~s/(\\keephidden{ENDOFPROBLEM})/$ansrendered$1/;
768: }
769: $current_output .= $rendered;
770: }
771: $flag_latex_header_remove = 'YES';
772: }
773: }
774: my $courseidinfo = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
775: if ($current_output=~/\\documentclass/) {
776: $current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\lhead{\\textit{\\textbf{$fullname}} - $courseidinfo \\hfill \\thepage \\\\ \\textit{$helper->{VARS}->{'assignment'}}}\\vskip 3 mm /;
777: } else {
778: my $blanspages = '';
779: for (my $j=0;$j<$helper->{'VARS'}->{'EMPTY_PAGES'};$j++) {$blanspages.='\clearpage\strut\clearpage';}
780: $current_output = '\strut\\newline\\noindent\\makebox[\\textwidth/$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;
781: }
782: $result .= $current_output;
783: &Apache::lonnet::delenv('form.counter');
784: &Apache::lonxml::init_counter();
785: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
786: 'last student '.$fullname);
787: }
788: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
789: $result .= '\end{document}';
790: &Apache::lonnet::delenv('form.textwidth');
791: } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_from_directory') {
792: #prints selected problems from the subdirectory
793: $selectionmade = 6;
794: my @list_of_files=split /\|\|\|/, $helper->{'VARS'}->{'FILES'};
795: @list_of_files=sort @list_of_files;
796: my $flag_latex_header_remove = 'NO';
797: my $rndseed=time;
798: for (my $i=0;$i<=$#list_of_files;$i++) {
799: my $urlp = $list_of_files[$i];
800: if ($urlp=~/\//) {
801: my %form;
802: $form{'grade_target'}='tex';
803: $form{'textwidth'}=$LaTeXwidth;
804: $form{'rndseed'}=$rndseed;
805: if ($urlp =~ m|/home/([^/]+)/public_html|) {
806: $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
807: } else {
808: $urlp =~ s|^/home/httpd/html||;
809: }
810: my $texversion=&Apache::lonnet::ssi($urlp,%form);
811: if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
812: my %form;
813: $form{'grade_target'}='answer';
814: $form{'answer_output_mode'}='tex';
815: $form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
816: $form{'rndseed'}=$rndseed;
817: my $answer=&Apache::lonnet::ssi($urlp,%form);
818: $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
819: }
820: #this chunck is responsible for printing the path to problem
821: my $newurlp = '';
822: my $HowMany = length($urlp)*2;
823: if ($HowMany > $LaTeXwidth) {
824: my @temporrary = split '/',$urlp;
825: my $HowManyNew = 0;
826: for (my $ii=0;$ii<=$#temporrary;$ii++) {
827: if ($temporrary[$ii] ne '') {
828: $HowManyNew += length($temporrary[$ii])*2;
829: if ($HowManyNew < $LaTeXwidth ) {
830: $newurlp .= '/'.$temporrary[$ii];
831: } else {
832: $HowManyNew = 0;
833: $newurlp .= '|\vskip -1 mm \noindent \verb|';
834: $ii--;
835: }
836: }
837: }
838: }
839: $texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 {\\small\\noindent\\verb|$newurlp\|\\vskip 0 mm}/;
840: if ($flag_latex_header_remove ne 'NO') {
841: $texversion = &latex_header_footer_remove($texversion);
842: } else {
843: $texversion =~ s/\\end{document}//;
844: }
845: $result .= $texversion;
846: }
847: $flag_latex_header_remove = 'YES';
848: }
849: if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\typeout)/ RANDOM SEED IS $rndseed $1/;}
850: $result .= '\end{document}';
851: }
852: #-------------------------------------------------------- corrections for the different page formats
853: $result = &page_format_transformation($papersize,$laystyle,$numberofcolumns,$helper->{'VARS'}->{'PRINT_TYPE'},$result,$helper->{VARS}->{'assignment'},$helper->{'VARS'}->{'TABLE_CONTENTS'});
854: $result = &latex_corrections($number_of_columns,$result);
855: #changes page's parameters for the one column output
856: if ($numberofcolumns == 1) {
857: $result =~ s/\\textwidth= 9cm/\\textwidth= $helper->{'VARS'}->{'pagesize.width'} $helper->{'VARS'}->{'pagesize.widthunit'} /;
858: $result =~ s/\\textheight 25\.9cm/\\textheight $helper->{'VARS'}->{'pagesize.height'} $helper->{'VARS'}->{'pagesize.heightunit'} /;
859: $result =~ s/\\evensidemargin = -0\.57in/\\evensidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
860: $result =~ s/\\oddsidemargin = -0\.57in/\\oddsidemargin= $helper->{'VARS'}->{'pagesize.lmargin'} $helper->{'VARS'}->{'pagesize.lmarginunit'} /;
861: }
862: if ($helper->{'VARS'}->{'TABLE_CONTENTS'} eq 'yes') {$selectionmade+=10;}
863: #-- writing .tex file in prtspool
864: my $temp_file;
865: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".time."_".rand(10000000).".tex";
866: unless ($temp_file = Apache::File->new('>'.$filename)) {
867: $r->log_error("Couldn't open $filename for output $!");
868: return SERVER_ERROR;
869: }
870: print $temp_file $result;
871:
872: $r->print(<<FINALEND);
873: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle&$numberofcolumns&$selectionmade">
874: </body>
875: </html>
876: FINALEND
877: }
878:
879:
880:
881: sub handler {
882:
883: my $r = shift;
884: my $helper;
885:
886: # my $loaderror=&Apache::lonnet::overloaderror($r);
887: # if ($loaderror) { return $loaderror; }
888: # $loaderror=
889: # &Apache::lonnet::overloaderror($r,
890: # $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
891: # if ($loaderror) { return $loaderror; }
892:
893: my $result = printHelper($r);
894: if (!ref($result)) {
895: return $result;
896: }
897: $helper = $result;
898:
899: # my $key;
900: # foreach $key (keys %{$helper->{'VARS'}}) {
901: # $r->print(' '.$key.'->'.$helper->{'VARS'}->{$key}.'<-<br />');
902: # }
903: # return OK;
904:
905: my %parmhash=&Apache::lonnet::coursedescription($ENV{'request.course.id'});
906:
907: # my $key;
908: # foreach $key (keys %parmhash) {
909: # $r->print(' '.$key.'->'.$parmhash{$key}.'<-<br />');
910: # }
911: # return OK;
912:
913: &output_data($r,$helper,\%parmhash);
914: return OK;
915: }
916:
917: use Apache::lonhelper;
918:
919: sub printHelper {
920: my $r = shift;
921:
922: if ($ENV{'request.course.id'}) {
923: my $fn=$ENV{'request.course.fn'};
924: tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640);
925: }
926:
927: if ($r->header_only) {
928: if ($ENV{'browser.mathml'}) {
929: $r->content_type('text/xml');
930: } else {
931: $r->content_type('text/html');
932: }
933: $r->send_http_header;
934: return OK;
935: }
936:
937: # Send header, nocache
938: if ($ENV{'browser.mathml'}) {
939: $r->content_type('text/xml');
940: } else {
941: $r->content_type('text/html');
942: }
943: &Apache::loncommon::no_cache($r);
944: $r->send_http_header;
945: $r->rflush();
946:
947: # Unfortunately, this helper is so complicated we have to
948: # write it by hand
949:
950: Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
951:
952: my $helper = Apache::lonhelper::helper->new("Printing Helper");
953: $helper->declareVar('symb');
954: $helper->declareVar('postdata');
955: $helper->declareVar('filename');
956: $helper->declareVar('construction');
957: $helper->declareVar('assignment');
958:
959: # This will persistently load in the data we want from the
960: # very first screen.
961: # Detect whether we're coming from construction space
962: if ($ENV{'form.postdata'}=~/^(?:http:\/\/[^\/]+\/|\/|)\~([^\/]+)\/(.*)$/) {
963: $helper->{VARS}->{'filename'} = "/home/$1/public_html/$2";
964: $helper->{VARS}->{'construction'} = 1;
965: } else {
966: if ($ENV{'form.postdata'}) {
967: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($ENV{'form.postdata'});
968: }
969: if ($ENV{'form.symb'}) {
970: $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
971: }
972: if ($ENV{'form.url'}) {
973: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
974: }
975: }
976:
977: if ($ENV{'form.symb'}) {
978: $helper->{VARS}->{'symb'} = $ENV{'form.symb'};
979: }
980: if ($ENV{'form.url'}) {
981: $helper->{VARS}->{'symb'} = &Apache::lonnet::symbread($helper->{VARS}->{'postdata'});
982:
983: }
984:
985: my ($resourceTitle,$sequenceTitle,$mapTitle) = &details_for_menu;
986: if ($sequenceTitle ne '') {$helper->{VARS}->{'assignment'}=$sequenceTitle;}
987:
988:
989: # Extract map
990: my $symb = $helper->{VARS}->{'symb'};
991: my ($map, $id, $url);
992: my $subdir;
993:
994: # Get the resource name from construction space
995: if ($helper->{VARS}->{'construction'}) {
996: $resourceTitle = substr($helper->{VARS}->{'filename'},
997: rindex($helper->{VARS}->{'filename'}, '/')+1);
998: $subdir = substr($helper->{VARS}->{'filename'},
999: 0, rindex($helper->{VARS}->{'filename'}, '/') + 1);
1000: } else {
1001: ($map, $id, $url) = split(/___/, $symb);
1002: $helper->{VARS}->{'postdata'} = Apache::lonnet::clutter($url);
1003:
1004: if (!$resourceTitle) { # if the resource doesn't have a title, use the filename
1005: my $url = $helper->{VARS}->{'postdata'};
1006: $resourceTitle = substr($url, rindex($url, '/') + 1);
1007: }
1008: $subdir = &Apache::lonnet::filelocation("", $url);
1009: }
1010:
1011: my $userCanSeeHidden = Apache::lonnavmaps::advancedUser();
1012:
1013: Apache::lonhelper::registerHelperTags();
1014:
1015: # "Delete everything after the last slash."
1016: $subdir =~ s|/[^/]+$||;
1017: if (not $helper->{VARS}->{'construction'}) {
1018: $subdir='/home/httpd/html/res/'.$subdir;
1019: }
1020: # "Remove all duplicate slashes."
1021: $subdir =~ s|/+|/|g;
1022:
1023: # What can be printed is a very dynamic decision based on
1024: # lots of factors. So we need to dynamically build this list.
1025: # To prevent security leaks, states are only added to the wizard
1026: # if they can be reached, which ensures manipulating the form input
1027: # won't allow anyone to reach states they shouldn't have permission
1028: # to reach.
1029:
1030: # printChoices is tracking the kind of printing the user can
1031: # do, and will be used in a choices construction later.
1032: # In the meantime we will be adding states and elements to
1033: # the helper by hand.
1034: my $printChoices = [];
1035: my $paramHash;
1036:
1037: if ($resourceTitle) {
1038: push @{$printChoices}, ["<b>$resourceTitle</b> (prints what you just saw on the screen)", 'current_document', 'PAGESIZE'];
1039: }
1040:
1041: # $r->print($helper->{VARS}->{'postdata'});
1042:
1043: # If we're in a sequence...
1044: if ($helper->{'VARS'}->{'construction'} ne '1') {
1045: # Allow problems from sequence
1046: push @{$printChoices}, ["Problem(s) from <b>$sequenceTitle</b>", 'map_problems', 'CHOOSE_PROBLEMS'];
1047: # Allow all resources from sequence
1048: push @{$printChoices}, ["Everything (problem(s), page(s), html/xml file(s)) from <b>$sequenceTitle</b>", 'map_problems_pages', 'CHOOSE_PROBLEMS_HTML'];
1049:
1050: my $isProblem = '$res->is_problem()';
1051: $isProblem .= ' && !$res->randomout()' if !$userCanSeeHidden;
1052: my $isProblemOrMap = '$res->is_problem() || $res->is_map()';
1053: my $isNotMap = '!$res->is_map()';
1054: $isNotMap .= ' && !$res->randomout()' if !$userCanSeeHidden;
1055: my $symb = '$res->symb()';
1056: my $helperFragment = <<HELPERFRAGMENT;
1057: <state name="CHOOSE_PROBLEMS" title="Select Problem(s) to print">
1058: <message>(mark them then click "next" button) <br /></message>
1059: <resource variable="RESOURCES" multichoice="1" toponly='1'>
1060: <nextstate>PAGESIZE</nextstate>
1061: <filterfunc>return $isProblem;</filterfunc>
1062: <mapurl>$map</mapurl>
1063: <valuefunc>return $symb;</valuefunc>
1064: </resource>
1065: </state>
1066:
1067: <state name="CHOOSE_PROBLEMS_HTML" title="Select Resource(s) to print">
1068: <message>(mark them then click "next" button) <br /></message>
1069: <resource variable="RESOURCES" multichoice="1" toponly='1'>
1070: <nextstate>PAGESIZE</nextstate>
1071: <filterfunc>return $isNotMap;</filterfunc>
1072: <mapurl>$map</mapurl>
1073: <valuefunc>return $symb;</valuefunc>
1074: </resource>
1075: </state>
1076: HELPERFRAGMENT
1077:
1078: &Apache::lonxml::xmlparse($r, 'helper', $helperFragment);
1079: }
1080:
1081: # If the user is priviledged, allow them to print all
1082: # problems in the course, optionally for selected students
1083: if (($ENV{'request.role'}=~m/^cc\./ or $ENV{'request.role'}=~m/^in\./ or $ENV{'request.role'}=~m/^ta\./) and ($helper->{VARS}->{'postdata'}=~/\/res\//)) {
1084: push @{$printChoices}, ['<b>Problems</b> in this course', 'all_problems', 'ALL_PROBLEMS'];
1085: push @{$printChoices}, ["Problems from <b>$sequenceTitle</b> for selected students", 'problems_for_students', 'CHOOSE_STUDENTS'];
1086:
1087: my $isProblem = '$res->is_problem()';
1088: $isProblem .= ' && !$res->randomout()' if !$userCanSeeHidden;
1089: my $isProblemOrMap = '($res->is_problem() || $res->is_map())';
1090: $isProblemOrMap .= ' && !$res->randomout()' if !$userCanSeeHidden;
1091: my $symb = '$res->symb()';
1092: &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
1093: <state name="ALL_PROBLEMS" title="Select Problem(s) to print">
1094: <message>(mark them then click "next" button) <br /></message>
1095: <resource variable="RESOURCES" multichoice="1" suppressEmptySequences='1'>
1096: <nextstate>PAGESIZE</nextstate>
1097: <filterfunc>return $isProblemOrMap;</filterfunc>
1098: <choicefunc>return $isProblem;</choicefunc>
1099: <valuefunc>return $symb;</valuefunc>
1100: </resource>
1101: </state>
1102:
1103: <state name="CHOOSE_STUDENTS" title="Choose Students whose assignments you want to print">
1104: <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" />
1105: <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
1106: <resource variable="RESOURCES" multichoice="1">
1107: <filterfunc>return $isProblem</filterfunc>
1108: <mapurl>$map</mapurl>
1109: <valuefunc>return $symb</valuefunc>
1110: </resource>
1111: <message><br /><big><i><b>How should the results be printed?</b></i></big><br /></message>
1112: <choices variable="EMPTY_PAGES">
1113: <choice computer='0'>Start each student\'s assignment on a new page/column (add a pagefeed after each assignment)</choice>
1114: <choice computer='1'>Add one empty page/column after each student\'s assignment</choice>
1115: <choice computer='2'>Add two empty pages/column after each student\'s assignment</choice>
1116: <choice computer='3'>Add three empty pages/column after each student\'s assignment</choice>
1117: </choices>
1118: </state>
1119: CHOOSE_STUDENTS
1120: }
1121:
1122: # FIXME: That RE should come from a library somewhere.
1123: if ((((&Apache::lonnet::allowed('bre',$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'}) and $ENV{'request.role.adv'}) {
1124: push @{$printChoices}, ["Problems from current subdirectory <b>$subdir</b>", 'problems_from_directory', 'CHOOSE_FROM_SUBDIR'];
1125:
1126: my $f = '$filename';
1127: my $xmlfrag = <<CHOOSE_FROM_SUBDIR;
1128: <state name="CHOOSE_FROM_SUBDIR" title="Select File(s) from <b><small>$subdir</small></b> to print">
1129: <message>(mark them then click "next" button) <br /></message>
1130: <files variable="FILES" multichoice='1'>
1131: <nextstate>PAGESIZE</nextstate>
1132: <filechoice>return '$subdir';</filechoice>
1133: CHOOSE_FROM_SUBDIR
1134:
1135: $xmlfrag .= <<'CHOOSE_FROM_SUBDIR';
1136: <filefilter>return $filename =~
1137: m/\.(problem|exam|quiz|assess|survey|form|library)$/;
1138: </filefilter>
1139: </files>
1140: </state>
1141: CHOOSE_FROM_SUBDIR
1142: &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag);
1143: }
1144:
1145: # Generate the first state, to select which resources get printed.
1146: Apache::lonhelper::state->new("START", "What do you want to print? Make a choice.");
1147: $paramHash = Apache::lonhelper::getParamHash();
1148: $paramHash->{MESSAGE_TEXT} = "";
1149: Apache::lonhelper::message->new();
1150: $paramHash = Apache::lonhelper::getParamHash();
1151: $paramHash->{'variable'} = 'PRINT_TYPE';
1152: $helper->declareVar('PRINT_TYPE');
1153: $paramHash->{CHOICES} = $printChoices;
1154: Apache::lonhelper::choices->new();
1155:
1156: if (($ENV{'request.role.adv'} and &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) or
1157: ($helper->{VARS}->{'construction'} eq '1')) {
1158: $paramHash = Apache::lonhelper::getParamHash();
1159: $paramHash->{MESSAGE_TEXT} = "<br /><big><b><i>Next option is available only for advanced users:</i></b></big><br />";
1160: Apache::lonhelper::message->new();
1161: $paramHash = Apache::lonhelper::getParamHash();
1162: $paramHash->{'variable'} = 'ANSWER_TYPE';
1163: $helper->declareVar('ANSWER_TYPE');
1164: $paramHash->{CHOICES} = [
1165: ['Print without answer', 'yes'],
1166: ['Print with answers', 'no'] ];
1167: Apache::lonhelper::choices->new();
1168: }
1169:
1170: if ($ENV{'request.role.adv'}) {
1171: $paramHash = Apache::lonhelper::getParamHash();
1172: $paramHash->{MESSAGE_TEXT} = "<br /><big><b><i>Another option available only for advanced users:</i></b></big><br />";
1173: Apache::lonhelper::message->new();
1174: $paramHash = Apache::lonhelper::getParamHash();
1175: $paramHash->{'variable'} = 'LATEX_TYPE';
1176: $helper->declareVar('LATEX_TYPE');
1177: if ($helper->{VARS}->{'construction'} eq '1') {
1178: $paramHash->{CHOICES} = [
1179: ['Print in standard LaTeX mode', 'standard'],
1180: ['Print in LaTeX batchmode', 'batchmode'], ];
1181: } else {
1182: $paramHash->{CHOICES} = [
1183: ['Print in LaTeX batchmode', 'batchmode'],
1184: ['Print in standard LaTeX mode', 'standard'] ];
1185: }
1186: Apache::lonhelper::choices->new();
1187: }
1188:
1189:
1190: $paramHash = Apache::lonhelper::getParamHash();
1191: $paramHash->{MESSAGE_TEXT} = "<br /><big><b>Print with <i>Table of Contents:</i></b></big>";
1192: Apache::lonhelper::message->new();
1193: $paramHash = Apache::lonhelper::getParamHash();
1194: $paramHash->{'variable'} = 'TABLE_CONTENTS';
1195: $helper->declareVar('TABLE_CONTENTS');
1196: $paramHash->{CHOICES} = [
1197: ['No', 'no'],
1198: ['Yes', 'yes'] ];
1199: Apache::lonhelper::choices->new();
1200:
1201:
1202: Apache::lonprintout::page_format_state->new("FORMAT");
1203:
1204: # Generate the PAGESIZE state which will offer the user the margin
1205: # choices if they select one column
1206: Apache::lonhelper::state->new("PAGESIZE", "Set Margins");
1207: Apache::lonprintout::page_size_state->new('pagesize', 'FORMAT', 'FINAL');
1208:
1209:
1210: $helper->process();
1211:
1212: # MANUAL BAILOUT CONDITION:
1213: # If we're in the "final" state, bailout and return to handler
1214: if ($helper->{STATE} eq 'FINAL') {
1215: return $helper;
1216: }
1217:
1218: $r->print($helper->display());
1219:
1220: Apache::lonhelper::unregisterHelperTags();
1221:
1222: untie %hash;
1223:
1224: return OK;
1225: }
1226:
1227:
1228: 1;
1229:
1230: package Apache::lonprintout::page_format_state;
1231:
1232: =pod
1233:
1234: =head1 Helper element: page_format_state
1235:
1236: See lonhelper.pm documentation for discussion of the helper framework.
1237:
1238: Apache::lonprintout::page_format_state is an element that gives the
1239: user an opportunity to select the page layout they wish to print
1240: with: Number of columns, portrait/landscape, and paper size. If you
1241: want to change the paper size choices, change the @paperSize array
1242: contents in this package.
1243:
1244: page_format_state is always directly invoked in lonprintout.pm, so there
1245: is no tag interface. You actually pass parameters to the constructor.
1246:
1247: =over 4
1248:
1249: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
1250:
1251: =back
1252:
1253: =cut
1254:
1255: use Apache::lonhelper;
1256:
1257: no strict;
1258: @ISA = ("Apache::lonhelper::element");
1259: use strict;
1260:
1261: my $maxColumns = 2;
1262: my @paperSize = ("Letter [8 1/2x11 in]", "Legal [8 1/2x14 in]",
1263: "Ledger/Tabloid [11x17 in]", "Executive [7 1/2x10 in]",
1264: "A2 [420x594 mm]", "A3 [297x420 mm]", "A4 [210x297 mm]",
1265: "A5 [148x210 mm]", "A6 [105x148 mm]" );
1266:
1267: # Tentative format: Orientation (L = Landscape, P = portrait) | Colnum |
1268: # Paper type
1269:
1270: sub new {
1271: my $self = Apache::lonhelper::element->new();
1272:
1273: shift;
1274:
1275: $self->{'variable'} = shift;
1276: my $helper = Apache::lonhelper::getHelper();
1277: $helper->declareVar($self->{'variable'});
1278: bless($self);
1279: return $self;
1280: }
1281:
1282: sub render {
1283: my $self = shift;
1284: my $helper = Apache::lonhelper::getHelper();
1285: my $result = '';
1286: my $var = $self->{'variable'};
1287:
1288: $result .= <<STATEHTML;
1289:
1290: <p><big><i><b>What page format do you prefer?</b></i></big></p>
1291: <table cellpadding="3">
1292: <tr>
1293: <td align="center"><b>Page layout</b></td>
1294: <td align="center"><b>Number of columns</b></td>
1295: <td align="center"><b>Paper type</b></td>
1296: </tr>
1297: <tr>
1298: <td>
1299: <input type="radio" name="${var}.layout" value="L" /> Landscape<br />
1300: <input type="radio" name="${var}.layout" value="P" checked='1' /> Portrait
1301: </td>
1302: <td align="center">
1303: <select name="${var}.cols">
1304: STATEHTML
1305:
1306: my $i;
1307: for ($i = 1; $i <= $maxColumns; $i++) {
1308: if ($i == 2) {
1309: $result .= "<option value='$i' selected>$i</option>\n";
1310: } else {
1311: $result .= "<option value='$i'>$i</option>\n";
1312: }
1313: }
1314:
1315: $result .= "</select></td><td>\n";
1316: $result .= "<select name='${var}.paper'>\n";
1317:
1318: $i = 0;
1319: foreach (@paperSize) {
1320: if ($i == 0) {
1321: $result .= "<option selected value='$i'>" . $paperSize[$i] . "</option>\n";
1322: } else {
1323: $result .= "<option value='$i'>" . $paperSize[$i] . "</option>\n";
1324: }
1325: $i++;
1326: }
1327:
1328: $result .= "</select></td></tr></table>";
1329: return $result;
1330: }
1331:
1332: sub postprocess {
1333: my $self = shift;
1334:
1335: my $var = $self->{'variable'};
1336: my $helper = Apache::lonhelper->getHelper();
1337: $helper->{VARS}->{$var} =
1338: $ENV{"form.$var.layout"} . '|' . $ENV{"form.$var.cols"} . '|' .
1339: $ENV{"form.$var.paper"};
1340: return 1;
1341: }
1342:
1343: 1;
1344:
1345: package Apache::lonprintout::page_size_state;
1346:
1347: =pod
1348:
1349: =head1 Helper element: page_size_state
1350:
1351: See lonhelper.pm documentation for discussion of the helper framework.
1352:
1353: Apache::lonprintout::page_size_state is an element that gives the
1354: user the opportunity to further refine the page settings if they
1355: select a single-column page.
1356:
1357: page_size_state is always directly invoked in lonprintout.pm, so there
1358: is no tag interface. You actually pass parameters to the constructor.
1359:
1360: =over 4
1361:
1362: =item * B<new>(varName): varName is where the print information will be stored in the format FIXME.
1363:
1364: =back
1365:
1366: =cut
1367:
1368: use Apache::lonhelper;
1369:
1370: no strict;
1371: @ISA = ("Apache::lonhelper::element");
1372: use strict;
1373:
1374:
1375:
1376: sub new {
1377: my $self = Apache::lonhelper::element->new();
1378:
1379: shift; # disturbs me (probably prevents subclassing) but works (drops
1380: # package descriptor)... - Jeremy
1381:
1382: $self->{'variable'} = shift;
1383: my $helper = Apache::lonhelper::getHelper();
1384: $helper->declareVar($self->{'variable'});
1385:
1386: # The variable name of the format element, so we can look into
1387: # $helper->{VARS} to figure out whether the columns are one or two
1388: $self->{'formatvar'} = shift;
1389:
1390: # The state to transition to after selection, or after discovering
1391: # the cols are not set to 1
1392: $self->{NEXTSTATE} = shift;
1393: bless($self);
1394: return $self;
1395: }
1396:
1397: sub render {
1398: my $self = shift;
1399: my $helper = Apache::lonhelper::getHelper();
1400: my $result = '';
1401: my $var = $self->{'variable'};
1402:
1403: if (defined $self->{ERROR_MSG}) {
1404: $result .= '<br /><font color="#FF0000">' . $self->{ERROR_MSG} . '</font><br />';
1405: }
1406:
1407: $result .= <<ELEMENTHTML;
1408:
1409: <p>How should the column be formatted?</p>
1410:
1411: <table cellpadding='3'>
1412: <tr>
1413: <td align='right'><b>Width</b>:</td>
1414: <td align='left'><input type='text' name='$var.width' value='18' size='4'></td>
1415: <td align='left'>
1416: <select name='$var.widthunit'>
1417: <option>cm</option><option>in</option>
1418: </select>
1419: </td>
1420: </tr>
1421: <tr>
1422: <td align='right'><b>Height</b>:</td>
1423: <td align='left'><input type='text' name="$var.height" value="25.9" size='4'></td>
1424: <td align='left'>
1425: <select name='$var.heightunit'>
1426: <option>cm</option><option>in</option>
1427: </select>
1428: </td>
1429: </tr>
1430: <tr>
1431: <td align='right'><b>Left margin</b>:</td>
1432: <td align='left'><input type='text' name='$var.lmargin' value='-1.5' size='4'></td>
1433: <td align='left'>
1434: <select name='$var.lmarginunit'>
1435: <option>cm</option><option>in</option>
1436: </select>
1437: </td>
1438: </tr>
1439: </table>
1440:
1441: <p>Hint: Some instructors like to leave scratch space for the student by
1442: making the width much smaller then the width of the page.</p>
1443:
1444: ELEMENTHTML
1445:
1446: return $result;
1447: }
1448:
1449: # If the user didn't select 1 column, skip this state.
1450: sub preprocess {
1451: my $self = shift;
1452: my $helper = Apache::lonhelper::getHelper();
1453:
1454: my $format = $helper->{VARS}->{$self->{'formatvar'}};
1455: if (substr($format, 2, 1) ne '1') {
1456: $helper->changeState($self->{NEXTSTATE});
1457: }
1458:
1459: return 1;
1460: }
1461:
1462: sub postprocess {
1463: my $self = shift;
1464:
1465: my $var = $self->{'variable'};
1466: my $helper = Apache::lonhelper->getHelper();
1467: my $width = $helper->{VARS}->{$var .'.width'} = $ENV{"form.${var}.width"};
1468: my $height = $helper->{VARS}->{$var .'.height'} = $ENV{"form.${var}.height"};
1469: my $lmargin = $helper->{VARS}->{$var .'.lmargin'} = $ENV{"form.${var}.lmargin"};
1470: $helper->{VARS}->{$var .'.widthunit'} = $ENV{"form.${var}.widthunit"};
1471: $helper->{VARS}->{$var .'.heightunit'} = $ENV{"form.${var}.heightunit"};
1472: $helper->{VARS}->{$var .'.lmarginunit'} = $ENV{"form.${var}.lmarginunit"};
1473:
1474: my $error = '';
1475:
1476: # /^-?[0-9]+(\.[0-9]*)?$/ -> optional minus, at least on digit, followed
1477: # by an optional period, followed by digits, ending the string
1478:
1479: if ($width !~ /^-?[0-9]+(\.[0-9]*)?$/) {
1480: $error .= "Invalid width; please type only a number.<br />\n";
1481: }
1482: if ($height !~ /^-?[0-9]+(\.[0-9]*)?$/) {
1483: $error .= "Invalid height; please type only a number.<br />\n";
1484: }
1485: if ($lmargin !~ /^-?[0-9]+(\.[0-9]*)?$/) {
1486: $error .= "Invalid left margin; please type only a number.<br />\n";
1487: }
1488:
1489: if (!$error) {
1490: Apache::lonhelper::getHelper()->changeState($self->{NEXTSTATE});
1491: return 1;
1492: } else {
1493: $self->{ERROR_MSG} = $error;
1494: return 0;
1495: }
1496: }
1497:
1498:
1499:
1500: __END__
1501:
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