Annotation of loncom/homework/imageresponse.pm, revision 1.31.2.1
1.12 albertel 1: # The LearningOnline Network with CAPA
1.14 albertel 2: # image click response style
3: #
1.31.2.1! albertel 4: # $Id: imageresponse.pm,v 1.31 2003/06/09 22:42:49 albertel Exp $
1.14 albertel 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: #
1.1 albertel 28:
1.25 www 29: #FIXME LATER assumes multiple possible submissions but only one is possible
30: #currently
1.3 albertel 31:
1.1 albertel 32: package Apache::imageresponse;
33: use strict;
1.21 harris41 34: use Image::Magick;
1.1 albertel 35:
1.16 harris41 36: BEGIN {
1.12 albertel 37: &Apache::lonxml::register('Apache::imageresponse',('imageresponse'));
1.1 albertel 38: }
39:
40: sub start_imageresponse {
1.12 albertel 41: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.13 albertel 42: my $result;
1.12 albertel 43: #when in a radiobutton response use these
44: &Apache::lonxml::register('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup'));
45: push (@Apache::lonxml::namespace,'imageresponse');
46: my $id = &Apache::response::start_response($parstack,$safeeval);
1.13 albertel 47: if ($target eq 'meta') {
48: $result=&Apache::response::meta_package_write('imageresponse');
49: }
50: return $result;
1.1 albertel 51: }
52:
53: sub end_imageresponse {
1.30 albertel 54: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
55: &Apache::response::end_response;
56: pop @Apache::lonxml::namespace;
57: &Apache::lonxml::deregister('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup'));
58: my $result;
59: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
60: return $result;
1.1 albertel 61: }
62:
1.20 albertel 63: %Apache::response::foilgroup=();
1.1 albertel 64: sub start_foilgroup {
1.20 albertel 65: %Apache::response::foilgroup=();
1.12 albertel 66: $Apache::imageresponse::conceptgroup=0;
67: &Apache::response::setrandomnumber();
68: return '';
1.1 albertel 69: }
70:
1.2 albertel 71: sub getfoilcounts {
1.12 albertel 72: my ($parstack,$safeeval)=@_;
73:
74: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
75: # +1 since instructors will count from 1
76: my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
1.18 albertel 77: if (&Apache::response::showallfoils()) { $max=$count; }
1.12 albertel 78: return ($count,$max);
1.2 albertel 79: }
80:
81: sub whichfoils {
1.12 albertel 82: my ($max)=@_;
83: if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; }
84: my @names = @{ $Apache::response::foilgroup{'names'} };
85: my @whichopt =();
86: while ((($#whichopt+1) < $max) && ($#names > -1)) {
87: &Apache::lonxml::debug("Have $#whichopt max is $max");
1.18 albertel 88: my $aopt;
89: if (&Apache::response::showallfoils()) {
90: $aopt=0;
91: } else {
1.22 albertel 92: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
1.18 albertel 93: }
1.12 albertel 94: &Apache::lonxml::debug("From $#names elms, picking $aopt");
95: $aopt=splice(@names,$aopt,1);
96: &Apache::lonxml::debug("Picked $aopt");
97: push (@whichopt,$aopt);
98: }
99: return @whichopt;
1.2 albertel 100: }
101:
102: sub displayfoils {
1.24 sakharuk 103: my ($target,@whichopt) = @_;
1.12 albertel 104: my $result ='';
105: my $name;
106: my $temp=1;
107: foreach $name (@whichopt) {
1.24 sakharuk 108: $result.=$Apache::response::foilgroup{"$name.text"};
1.28 albertel 109: &Apache::lonxml::debug("Text is $result");
1.24 sakharuk 110: if ($target eq 'tex') {$result.="\\vskip 0 mm \n";} else {$result.="<br />\n";}
1.12 albertel 111: my $image=$Apache::response::foilgroup{"$name.image"};
1.28 albertel 112: &Apache::lonxml::debug("image is $image");
1.31.2.1! albertel 113: if ( &Apache::response::show_answer() ) {
1.24 sakharuk 114: if ($target eq 'tex') {
115: $result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
116: } else {
117: $result.="<img src=\"$image\"/> <br />\n";
118: }
1.12 albertel 119: } else {
1.24 sakharuk 120: if ($target eq 'tex') {
121: $result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
122: } else {
123: $result.="<input type=\"image\" name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\" src=\"$image\"/> <br />\n";
124: }
1.12 albertel 125: }
126: $temp++;
127: }
128: return $result;
1.2 albertel 129: }
130:
1.3 albertel 131: sub gradefoils {
1.12 albertel 132: my (@whichopt) = @_;
133: my $x;
134: my $y;
135: my $result;
136: my $id=$Apache::inputtags::response['-1'];
137: my $temp=1;
138: foreach my $name (@whichopt) {
139: $x=$ENV{"form.HWVAL_$id:$temp.x"};
140: $y=$ENV{"form.HWVAL_$id:$temp.y"};
141: &Apache::lonxml::debug("Got a x of $x and a y of $y for $name");
1.29 albertel 142: if (defined($x) && defined($y) &&
143: defined(@{ $Apache::response::foilgroup{"$name.area"} })) {
1.12 albertel 144: my @areas = @{ $Apache::response::foilgroup{"$name.area"} };
145: my $grade="INCORRECT";
146: foreach my $area (@areas) {
147: &Apache::lonxml::debug("Area is $area for $name");
148: $area =~ m/([a-z]*):/;
149: &Apache::lonxml::debug("Area of type $1");
150: if ($1 eq 'rectangle') {
151: $grade=&grade_rectangle($area,$x,$y);
152: } else {
153: &Apache::lonxml::error("Unknown area style $area");
1.9 albertel 154: }
1.12 albertel 155: &Apache::lonxml::debug("Area said $grade");
156: if ($grade eq 'APPROX_ANS') { last; }
157: }
158: &Apache::lonxml::debug("Foil was $grade");
159: if ($grade eq 'INCORRECT') { $result= 'INCORRECT'; }
160: if (($grade eq 'APPROX_ANS') && ($result ne 'APPROX_ANS')) { $result=$grade; }
161: &Apache::lonxml::debug("Question is $result");
162: $temp++;
163: }
164: }
165: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}="$x:$y";
166: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$result;
167: return '';
1.3 albertel 168: }
169:
1.1 albertel 170: sub end_foilgroup {
1.12 albertel 171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
172: my $result='';
173: my @whichopt;
1.24 sakharuk 174: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
1.12 albertel 175: my ($count,$max) = &getfoilcounts($parstack,$safeeval);
176: if ($count>$max) { $count=$max }
177: &Apache::lonxml::debug("Count is $count from $max");
178: @whichopt = &whichfoils($max);
1.28 albertel 179: if ($target eq 'web' || $target eq 'tex') {
180: $result=&displayfoils($target,@whichopt);
181: } elsif ($target eq 'grade') {
182: if ( defined $ENV{'form.submitted'}) { &gradefoils(@whichopt); }
183: }
1.26 albertel 184: } elsif ($target eq 'edit') {
185: $result=&Apache::edit::end_table();
1.12 albertel 186: }
187: return $result;
1.1 albertel 188: }
189:
190: sub start_conceptgroup {
1.12 albertel 191: $Apache::imageresponse::conceptgroup=1;
1.20 albertel 192: %Apache::response::conceptgroup=();
1.12 albertel 193: return '';
1.1 albertel 194: }
195:
196: sub end_conceptgroup {
1.12 albertel 197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.26 albertel 198: $Apache::imageresponse::conceptgroup=0;
199: my $result;
1.24 sakharuk 200: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
1.12 albertel 201: if (defined(@{ $Apache::response::conceptgroup{'names'} })) {
202: my @names = @{ $Apache::response::conceptgroup{'names'} };
1.22 albertel 203: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
1.12 albertel 204: my $name=$names[$pick];
205: if (defined(@{ $Apache::response::conceptgroup{"$name.area"} })) {
206: push @{ $Apache::response::foilgroup{'names'} }, $name;
207: $Apache::response::foilgroup{"$name.text"} = $Apache::response::conceptgroup{"$name.text"};
208: $Apache::response::foilgroup{"$name.image"} = $Apache::response::conceptgroup{"$name.image"};
209: push(@{ $Apache::response::foilgroup{"$name.area"} }, @{ $Apache::response::conceptgroup{"$name.area"} });
210: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
211: $Apache::response::foilgroup{"$name.concept"} = $concept;
212: &Apache::lonxml::debug("Selecting $name in $concept");
213: }
1.9 albertel 214: }
1.26 albertel 215: } elsif ($target eq 'edit') {
216: $result=&Apache::edit::end_table();
1.12 albertel 217: }
1.26 albertel 218: return $result;
1.31 albertel 219: }
220:
221: sub insert_foil {
222: return '
223: <foil>
224: <image></image>
225: <text></text>
226: <rectangle></rectangle>
227: </foil>
228: ';
1.1 albertel 229: }
230:
1.12 albertel 231: $Apache::imageresponse::curname='';
1.1 albertel 232: sub start_foil {
1.12 albertel 233: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.24 sakharuk 234: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
1.12 albertel 235: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
236: if ($name eq '') { $name=$Apache::lonxml::curdepth; }
1.18 albertel 237: if ( $Apache::imageresponse::conceptgroup
238: && !&Apache::response::showallfoils()) {
1.12 albertel 239: push(@{ $Apache::response::conceptgroup{'names'} }, $name);
240: } else {
241: push(@{ $Apache::response::foilgroup{'names'} }, $name);
242: }
243: $Apache::imageresponse::curname=$name;
244: }
245: return '';
1.1 albertel 246: }
247:
248: sub end_foil {
1.26 albertel 249: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
250: my $result;
251: if ($target eq 'edit') {
252: $result=&Apache::edit::end_table();
253: }
254: return $result;
1.1 albertel 255: }
256:
257: sub start_text {
1.12 albertel 258: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.25 www 259: my $result='';
260: if ($target eq 'web' || $target eq 'tex') {
261: &Apache::lonxml::startredirection;
262: } elsif ($target eq 'edit') {
1.26 albertel 263: my $descr=&Apache::lonxml::get_all_text('/text',$parser);
1.25 www 264: $result=&Apache::edit::tag_start($target,$token,'Task Description').
265: &Apache::edit::editfield($token->[1],$descr,'Text',60,2).
1.26 albertel 266: &Apache::edit::end_row();
1.25 www 267: } elsif ($target eq "modified") {
1.26 albertel 268: my $descr=&Apache::lonxml::get_all_text('/text',$parser);
1.25 www 269: $result=$token->[4].&Apache::edit::modifiedfield($token);
270: &Apache::lonxml::debug($result);
271: }
272: return $result;
1.1 albertel 273: }
274:
275: sub end_text {
1.12 albertel 276: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.26 albertel 277: my $result;
1.24 sakharuk 278: if ($target eq 'web' || $target eq 'tex') {
1.12 albertel 279: my $name = $Apache::imageresponse::curname;
1.18 albertel 280: if ( $Apache::imageresponse::conceptgroup
281: && !&Apache::response::showallfoils() ) {
1.12 albertel 282: $Apache::response::conceptgroup{"$name.text"} = &Apache::lonxml::endredirection;
283: } else {
284: $Apache::response::foilgroup{"$name.text"} = &Apache::lonxml::endredirection;
1.7 albertel 285: }
1.26 albertel 286: } elsif ($target eq 'edit') {
287: $result=&Apache::edit::end_table();
1.12 albertel 288: }
1.26 albertel 289: return $result;
1.1 albertel 290: }
291:
292: sub start_image {
1.12 albertel 293: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.25 www 294: my $result='';
295: if ($target eq 'web' || $target eq 'tex') {
296: &Apache::lonxml::startredirection;
297: } elsif ($target eq 'edit') {
1.26 albertel 298: my $bgimg=&Apache::lonxml::get_all_text('/image',$parser);
1.27 www 299: $Apache::edit::bgimgsrc=$bgimg;
300: $Apache::edit::bgimgsrcdepth=$Apache::lonxml::curdepth;
301:
1.25 www 302: $result=&Apache::edit::tag_start($target,$token,'Clickable Image').
303: &Apache::edit::editline($token->[1],$bgimg,'Image Source File',40);
304: $result.=&Apache::edit::browse(undef,'textnode').' ';
305: $result.=&Apache::edit::search(undef,'textnode').
1.26 albertel 306: &Apache::edit::end_row();
1.25 www 307: } elsif ($target eq "modified") {
1.26 albertel 308: my $bgimg=&Apache::lonxml::get_all_text('/image',$parser);
1.25 www 309: $result=$token->[4].&Apache::edit::modifiedfield($token);
310: &Apache::lonxml::debug($result);
311: }
312: return $result;
1.1 albertel 313: }
314:
315: sub end_image {
1.26 albertel 316: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
317: my $result;
1.24 sakharuk 318: my $name = $Apache::imageresponse::curname;
1.12 albertel 319: if ($target eq 'web') {
320: my $image = &Apache::lonxml::endredirection;
321: &Apache::lonxml::debug("out is $image");
1.18 albertel 322: if ( $Apache::imageresponse::conceptgroup
323: && !&Apache::response::showallfoils()) {
1.12 albertel 324: $Apache::response::conceptgroup{"$name.image"} = $image;
325: } else {
326: $Apache::response::foilgroup{"$name.image"} = $image;
1.7 albertel 327: }
1.26 albertel 328: } elsif ($target eq 'edit') {
329: $result=&Apache::edit::end_table();
1.19 sakharuk 330: } elsif ($target eq 'tex') {
331: my $src = &Apache::lonxml::endredirection;
332: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
333: my $width_param = '';
334: my $height_param = '';
335: my $scaling = .3;
336: my $image = Image::Magick->new;
337: my $current_figure = $image->Read($src);
338: $width_param = $image->Get('width') * $scaling;;
339: $height_param = $image->Get('height') * $scaling;;
340: undef $image;
341: my $epssrc = $src;
342: $epssrc =~ s/(\.gif|\.jpg)$/\.eps/i;
343: if (not -e $epssrc) {
344: my $localfile = $epssrc;
345: $localfile =~ s/.*(\/res)/$1/;
346: my $file;
347: my $path;
348: if ($localfile =~ m!(.*)/([^/]*)$!) {
349: $file = $2;
350: $path = $1.'/';
351: }
352: my $signal_eps = 0;
353: my @content_directory = &Apache::lonnet::dirlist($path);
354: for (my $iy=0;$iy<=$#content_directory;$iy++) {
355: my @tempo_array = split(/&/,$content_directory[$iy]);
356: $content_directory[$iy] = $tempo_array[0];
357: if ($file eq $tempo_array[0]) {
358: $signal_eps = 1;
359: last;
360: }
361: }
362: if ($signal_eps) {
363: my $eps_file = &Apache::lonnet::getfile($localfile);
364: } else {
365: $localfile = $src;
366: $localfile =~ s/.*(\/res)/$1/;
367: my $as = &Apache::lonnet::getfile($src);
368: }
369: }
370: my $file;
371: my $path;
372: if ($src =~ m!(.*)/([^/]*)$!) {
373: $file = $2;
374: $path = $1.'/';
375: }
376: my $newsrc = $src;
1.27 www 377: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
378: $file=~s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
1.19 sakharuk 379: #do we have any specified size of the picture?
380: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval);
381: my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval);
382: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval);
383: if ($TeXwidth ne '') {
384: $width_param = $TeXwidth;
385: } elsif ($TeXheight ne '') {
386: $width_param = $TeXheight/$height_param*$width_param;
387: } elsif ($width ne '') {
388: $width_param = $width*$scaling;
389: }
390: #where can we find the picture?
391: if (-e $newsrc) {
392: if ($path) {
1.24 sakharuk 393: $Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
1.19 sakharuk 394: }
395: } else {
396: my $temp_file;
397: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
398: $temp_file = Apache::File->new('>>'.$filename);
399: print $temp_file "$src\n";
1.24 sakharuk 400: $Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
1.19 sakharuk 401: }
1.24 sakharuk 402: }
1.26 albertel 403: return $result;
1.1 albertel 404: }
405:
406: sub start_rectangle {
1.12 albertel 407: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.25 www 408: my $result='';
409: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
410: &Apache::lonxml::startredirection;
411: } elsif ($target eq 'edit') {
1.26 albertel 412: my $coords=&Apache::lonxml::get_all_text('/rectangle',$parser);
1.25 www 413: $result=&Apache::edit::tag_start($target,$token,'Rectangle').
414: &Apache::edit::editline($token->[1],$coords,'Coordinate Pairs',40).
1.27 www 415: &Apache::edit::entercoordpair(undef,'textnode').
1.26 albertel 416: &Apache::edit::end_row();
1.25 www 417: } elsif ($target eq "modified") {
1.26 albertel 418: my $coords=&Apache::lonxml::get_all_text('/rectangle',$parser);
1.25 www 419: $result=$token->[4].&Apache::edit::modifiedfield($token);
420: &Apache::lonxml::debug($result);
421: }
422: return $result;
1.1 albertel 423: }
424:
1.3 albertel 425: sub grade_rectangle {
1.12 albertel 426: my ($spec,$x,$y) = @_;
427: &Apache::lonxml::debug("Spec is $spec");
428: $spec=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/;
429: my $x1=$1;
430: my $y1=$2;
431: my $x2=$3;
432: my $y2=$4;
433: &Apache::lonxml::debug("Point $x1,$y1,$x2,$y2");
434: if ($x1 > $x2) { my $temp=$x1;$x1=$x2;$x2=$temp; }
435: if ($y1 > $y2) { my $temp=$y1;$y1=$y2;$y2=$temp; }
1.17 albertel 436: if (($x >= $x1) && ($x <= $x2) && ($y >= $y1) && ($y <= $y2)) {
437: return 'APPROX_ANS';
438: }
1.12 albertel 439: return 'INCORRECT';
1.3 albertel 440: }
441:
1.1 albertel 442: sub end_rectangle {
1.12 albertel 443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.26 albertel 444: my $result;
1.24 sakharuk 445: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
1.12 albertel 446: my $name = $Apache::imageresponse::curname;
447: my $area = &Apache::lonxml::endredirection;
448: &Apache::lonxml::debug("out is $area for $name");
1.18 albertel 449: if ( $Apache::imageresponse::conceptgroup
450: && !&Apache::response::showallfoils()) {
1.12 albertel 451: push @{ $Apache::response::conceptgroup{"$name.area"} },"rectangle:$area";
452: } else {
453: push @{ $Apache::response::foilgroup{"$name.area"} },"rectangle:$area";
1.7 albertel 454: }
1.26 albertel 455: } elsif ($target eq 'edit') {
456: $result=&Apache::edit::end_table();
1.12 albertel 457: }
1.26 albertel 458: return $result;
1.1 albertel 459: }
460: 1;
461: __END__
462:
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