Annotation of loncom/homework/imageresponse.pm, revision 1.27
1.12 albertel 1: # The LearningOnline Network with CAPA
1.14 albertel 2: # image click response style
3: #
1.27 ! www 4: # $Id: imageresponse.pm,v 1.26 2003/05/05 22:36:54 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 {
1.12 albertel 54: &Apache::response::end_response;
55: pop @Apache::lonxml::namespace;
1.15 albertel 56: &Apache::lonxml::deregister('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup'));
1.12 albertel 57: return '';
1.1 albertel 58: }
59:
1.20 albertel 60: %Apache::response::foilgroup=();
1.1 albertel 61: sub start_foilgroup {
1.20 albertel 62: %Apache::response::foilgroup=();
1.12 albertel 63: $Apache::imageresponse::conceptgroup=0;
64: &Apache::response::setrandomnumber();
65: return '';
1.1 albertel 66: }
67:
1.2 albertel 68: sub getfoilcounts {
1.12 albertel 69: my ($parstack,$safeeval)=@_;
70:
71: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
72: # +1 since instructors will count from 1
73: my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
1.18 albertel 74: if (&Apache::response::showallfoils()) { $max=$count; }
1.12 albertel 75: return ($count,$max);
1.2 albertel 76: }
77:
78: sub whichfoils {
1.12 albertel 79: my ($max)=@_;
80: if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; }
81: my @names = @{ $Apache::response::foilgroup{'names'} };
82: my @whichopt =();
83: while ((($#whichopt+1) < $max) && ($#names > -1)) {
84: &Apache::lonxml::debug("Have $#whichopt max is $max");
1.18 albertel 85: my $aopt;
86: if (&Apache::response::showallfoils()) {
87: $aopt=0;
88: } else {
1.22 albertel 89: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
1.18 albertel 90: }
1.12 albertel 91: &Apache::lonxml::debug("From $#names elms, picking $aopt");
92: $aopt=splice(@names,$aopt,1);
93: &Apache::lonxml::debug("Picked $aopt");
94: push (@whichopt,$aopt);
95: }
96: return @whichopt;
1.2 albertel 97: }
98:
99: sub displayfoils {
1.24 sakharuk 100: my ($target,@whichopt) = @_;
1.12 albertel 101: my $result ='';
102: my $name;
103: my $temp=1;
104: foreach $name (@whichopt) {
1.24 sakharuk 105: $result.=$Apache::response::foilgroup{"$name.text"};
106: if ($target eq 'tex') {$result.="\\vskip 0 mm \n";} else {$result.="<br />\n";}
1.12 albertel 107: my $image=$Apache::response::foilgroup{"$name.image"};
108: if ($Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"} =~ /^correct/ ) {
1.24 sakharuk 109: if ($target eq 'tex') {
110: $result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
111: } else {
112: $result.="<img src=\"$image\"/> <br />\n";
113: }
1.12 albertel 114: } else {
1.24 sakharuk 115: if ($target eq 'tex') {
116: $result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
117: } else {
118: $result.="<input type=\"image\" name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\" src=\"$image\"/> <br />\n";
119: }
1.12 albertel 120: }
121: $temp++;
122: }
123: return $result;
1.2 albertel 124: }
125:
1.3 albertel 126: sub gradefoils {
1.12 albertel 127: my (@whichopt) = @_;
128: my $x;
129: my $y;
130: my $result;
131: my $id=$Apache::inputtags::response['-1'];
132: my $temp=1;
133: foreach my $name (@whichopt) {
134: $x=$ENV{"form.HWVAL_$id:$temp.x"};
135: $y=$ENV{"form.HWVAL_$id:$temp.y"};
136: &Apache::lonxml::debug("Got a x of $x and a y of $y for $name");
137: if (defined(@{ $Apache::response::foilgroup{"$name.area"} })) {
138: my @areas = @{ $Apache::response::foilgroup{"$name.area"} };
139: my $grade="INCORRECT";
140: foreach my $area (@areas) {
141: &Apache::lonxml::debug("Area is $area for $name");
142: $area =~ m/([a-z]*):/;
143: &Apache::lonxml::debug("Area of type $1");
144: if ($1 eq 'rectangle') {
145: $grade=&grade_rectangle($area,$x,$y);
146: } else {
147: &Apache::lonxml::error("Unknown area style $area");
1.9 albertel 148: }
1.12 albertel 149: &Apache::lonxml::debug("Area said $grade");
150: if ($grade eq 'APPROX_ANS') { last; }
151: }
152: &Apache::lonxml::debug("Foil was $grade");
153: if ($grade eq 'INCORRECT') { $result= 'INCORRECT'; }
154: if (($grade eq 'APPROX_ANS') && ($result ne 'APPROX_ANS')) { $result=$grade; }
155: &Apache::lonxml::debug("Question is $result");
156: $temp++;
157: }
158: }
159: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}="$x:$y";
160: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$result;
161: return '';
1.3 albertel 162: }
163:
1.1 albertel 164: sub end_foilgroup {
1.12 albertel 165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
166: my $result='';
167: my @whichopt;
1.24 sakharuk 168: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
1.12 albertel 169: my ($count,$max) = &getfoilcounts($parstack,$safeeval);
170: if ($count>$max) { $count=$max }
171: &Apache::lonxml::debug("Count is $count from $max");
172: @whichopt = &whichfoils($max);
1.26 albertel 173: } elsif ($target eq 'web' || $target eq 'tex') {
1.24 sakharuk 174: $result=&displayfoils($target,@whichopt);
1.26 albertel 175: } elsif ($target eq 'grade') {
1.12 albertel 176: if ( defined $ENV{'form.submitted'}) {
177: &gradefoils(@whichopt);
1.3 albertel 178: }
1.26 albertel 179: } elsif ($target eq 'edit') {
180: $result=&Apache::edit::end_table();
1.12 albertel 181: }
182: return $result;
1.1 albertel 183: }
184:
185: sub start_conceptgroup {
1.12 albertel 186: $Apache::imageresponse::conceptgroup=1;
1.20 albertel 187: %Apache::response::conceptgroup=();
1.12 albertel 188: return '';
1.1 albertel 189: }
190:
191: sub end_conceptgroup {
1.12 albertel 192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.26 albertel 193: $Apache::imageresponse::conceptgroup=0;
194: my $result;
1.24 sakharuk 195: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
1.12 albertel 196: if (defined(@{ $Apache::response::conceptgroup{'names'} })) {
197: my @names = @{ $Apache::response::conceptgroup{'names'} };
1.22 albertel 198: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
1.12 albertel 199: my $name=$names[$pick];
200: if (defined(@{ $Apache::response::conceptgroup{"$name.area"} })) {
201: push @{ $Apache::response::foilgroup{'names'} }, $name;
202: $Apache::response::foilgroup{"$name.text"} = $Apache::response::conceptgroup{"$name.text"};
203: $Apache::response::foilgroup{"$name.image"} = $Apache::response::conceptgroup{"$name.image"};
204: push(@{ $Apache::response::foilgroup{"$name.area"} }, @{ $Apache::response::conceptgroup{"$name.area"} });
205: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
206: $Apache::response::foilgroup{"$name.concept"} = $concept;
207: &Apache::lonxml::debug("Selecting $name in $concept");
208: }
1.9 albertel 209: }
1.26 albertel 210: } elsif ($target eq 'edit') {
211: $result=&Apache::edit::end_table();
1.12 albertel 212: }
1.26 albertel 213: return $result;
1.1 albertel 214: }
215:
1.12 albertel 216: $Apache::imageresponse::curname='';
1.1 albertel 217: sub start_foil {
1.12 albertel 218: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.24 sakharuk 219: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
1.12 albertel 220: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
221: if ($name eq '') { $name=$Apache::lonxml::curdepth; }
1.18 albertel 222: if ( $Apache::imageresponse::conceptgroup
223: && !&Apache::response::showallfoils()) {
1.12 albertel 224: push(@{ $Apache::response::conceptgroup{'names'} }, $name);
225: } else {
226: push(@{ $Apache::response::foilgroup{'names'} }, $name);
227: }
228: $Apache::imageresponse::curname=$name;
229: }
230: return '';
1.1 albertel 231: }
232:
233: sub end_foil {
1.26 albertel 234: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
235: my $result;
236: if ($target eq 'edit') {
237: $result=&Apache::edit::end_table();
238: }
239: return $result;
1.1 albertel 240: }
241:
242: sub start_text {
1.12 albertel 243: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.25 www 244: my $result='';
245: if ($target eq 'web' || $target eq 'tex') {
246: &Apache::lonxml::startredirection;
247: } elsif ($target eq 'edit') {
1.26 albertel 248: my $descr=&Apache::lonxml::get_all_text('/text',$parser);
1.25 www 249: $result=&Apache::edit::tag_start($target,$token,'Task Description').
250: &Apache::edit::editfield($token->[1],$descr,'Text',60,2).
1.26 albertel 251: &Apache::edit::end_row();
1.25 www 252: } elsif ($target eq "modified") {
1.26 albertel 253: my $descr=&Apache::lonxml::get_all_text('/text',$parser);
1.25 www 254: $result=$token->[4].&Apache::edit::modifiedfield($token);
255: &Apache::lonxml::debug($result);
256: }
257: return $result;
1.1 albertel 258: }
259:
260: sub end_text {
1.12 albertel 261: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.26 albertel 262: my $result;
1.24 sakharuk 263: if ($target eq 'web' || $target eq 'tex') {
1.12 albertel 264: my $name = $Apache::imageresponse::curname;
1.18 albertel 265: if ( $Apache::imageresponse::conceptgroup
266: && !&Apache::response::showallfoils() ) {
1.12 albertel 267: $Apache::response::conceptgroup{"$name.text"} = &Apache::lonxml::endredirection;
268: } else {
269: $Apache::response::foilgroup{"$name.text"} = &Apache::lonxml::endredirection;
1.7 albertel 270: }
1.26 albertel 271: } elsif ($target eq 'edit') {
272: $result=&Apache::edit::end_table();
1.12 albertel 273: }
1.26 albertel 274: return $result;
1.1 albertel 275: }
276:
277: sub start_image {
1.12 albertel 278: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.25 www 279: my $result='';
280: if ($target eq 'web' || $target eq 'tex') {
281: &Apache::lonxml::startredirection;
282: } elsif ($target eq 'edit') {
1.26 albertel 283: my $bgimg=&Apache::lonxml::get_all_text('/image',$parser);
1.27 ! www 284: $Apache::edit::bgimgsrc=$bgimg;
! 285: $Apache::edit::bgimgsrcdepth=$Apache::lonxml::curdepth;
! 286:
1.25 www 287: $result=&Apache::edit::tag_start($target,$token,'Clickable Image').
288: &Apache::edit::editline($token->[1],$bgimg,'Image Source File',40);
289: $result.=&Apache::edit::browse(undef,'textnode').' ';
290: $result.=&Apache::edit::search(undef,'textnode').
1.26 albertel 291: &Apache::edit::end_row();
1.25 www 292: } elsif ($target eq "modified") {
1.26 albertel 293: my $bgimg=&Apache::lonxml::get_all_text('/image',$parser);
1.25 www 294: $result=$token->[4].&Apache::edit::modifiedfield($token);
295: &Apache::lonxml::debug($result);
296: }
297: return $result;
1.1 albertel 298: }
299:
300: sub end_image {
1.26 albertel 301: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
302: my $result;
1.24 sakharuk 303: my $name = $Apache::imageresponse::curname;
1.12 albertel 304: if ($target eq 'web') {
305: my $image = &Apache::lonxml::endredirection;
306: &Apache::lonxml::debug("out is $image");
1.18 albertel 307: if ( $Apache::imageresponse::conceptgroup
308: && !&Apache::response::showallfoils()) {
1.12 albertel 309: $Apache::response::conceptgroup{"$name.image"} = $image;
310: } else {
311: $Apache::response::foilgroup{"$name.image"} = $image;
1.7 albertel 312: }
1.26 albertel 313: } elsif ($target eq 'edit') {
314: $result=&Apache::edit::end_table();
1.19 sakharuk 315: } elsif ($target eq 'tex') {
316: my $src = &Apache::lonxml::endredirection;
317: $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
318: my $width_param = '';
319: my $height_param = '';
320: my $scaling = .3;
321: my $image = Image::Magick->new;
322: my $current_figure = $image->Read($src);
323: $width_param = $image->Get('width') * $scaling;;
324: $height_param = $image->Get('height') * $scaling;;
325: undef $image;
326: my $epssrc = $src;
327: $epssrc =~ s/(\.gif|\.jpg)$/\.eps/i;
328: if (not -e $epssrc) {
329: my $localfile = $epssrc;
330: $localfile =~ s/.*(\/res)/$1/;
331: my $file;
332: my $path;
333: if ($localfile =~ m!(.*)/([^/]*)$!) {
334: $file = $2;
335: $path = $1.'/';
336: }
337: my $signal_eps = 0;
338: my @content_directory = &Apache::lonnet::dirlist($path);
339: for (my $iy=0;$iy<=$#content_directory;$iy++) {
340: my @tempo_array = split(/&/,$content_directory[$iy]);
341: $content_directory[$iy] = $tempo_array[0];
342: if ($file eq $tempo_array[0]) {
343: $signal_eps = 1;
344: last;
345: }
346: }
347: if ($signal_eps) {
348: my $eps_file = &Apache::lonnet::getfile($localfile);
349: } else {
350: $localfile = $src;
351: $localfile =~ s/.*(\/res)/$1/;
352: my $as = &Apache::lonnet::getfile($src);
353: }
354: }
355: my $file;
356: my $path;
357: if ($src =~ m!(.*)/([^/]*)$!) {
358: $file = $2;
359: $path = $1.'/';
360: }
361: my $newsrc = $src;
1.27 ! www 362: $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
! 363: $file=~s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
1.19 sakharuk 364: #do we have any specified size of the picture?
365: my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval);
366: my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval);
367: my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval);
368: if ($TeXwidth ne '') {
369: $width_param = $TeXwidth;
370: } elsif ($TeXheight ne '') {
371: $width_param = $TeXheight/$height_param*$width_param;
372: } elsif ($width ne '') {
373: $width_param = $width*$scaling;
374: }
375: #where can we find the picture?
376: if (-e $newsrc) {
377: if ($path) {
1.24 sakharuk 378: $Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
1.19 sakharuk 379: }
380: } else {
381: my $temp_file;
382: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
383: $temp_file = Apache::File->new('>>'.$filename);
384: print $temp_file "$src\n";
1.24 sakharuk 385: $Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
1.19 sakharuk 386: }
1.24 sakharuk 387: }
1.26 albertel 388: return $result;
1.1 albertel 389: }
390:
391: sub start_rectangle {
1.12 albertel 392: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.25 www 393: my $result='';
394: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
395: &Apache::lonxml::startredirection;
396: } elsif ($target eq 'edit') {
1.26 albertel 397: my $coords=&Apache::lonxml::get_all_text('/rectangle',$parser);
1.25 www 398: $result=&Apache::edit::tag_start($target,$token,'Rectangle').
399: &Apache::edit::editline($token->[1],$coords,'Coordinate Pairs',40).
1.27 ! www 400: &Apache::edit::entercoordpair(undef,'textnode').
1.26 albertel 401: &Apache::edit::end_row();
1.25 www 402: } elsif ($target eq "modified") {
1.26 albertel 403: my $coords=&Apache::lonxml::get_all_text('/rectangle',$parser);
1.25 www 404: $result=$token->[4].&Apache::edit::modifiedfield($token);
405: &Apache::lonxml::debug($result);
406: }
407: return $result;
1.1 albertel 408: }
409:
1.3 albertel 410: sub grade_rectangle {
1.12 albertel 411: my ($spec,$x,$y) = @_;
412: &Apache::lonxml::debug("Spec is $spec");
413: $spec=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/;
414: my $x1=$1;
415: my $y1=$2;
416: my $x2=$3;
417: my $y2=$4;
418: &Apache::lonxml::debug("Point $x1,$y1,$x2,$y2");
419: if ($x1 > $x2) { my $temp=$x1;$x1=$x2;$x2=$temp; }
420: if ($y1 > $y2) { my $temp=$y1;$y1=$y2;$y2=$temp; }
1.17 albertel 421: if (($x >= $x1) && ($x <= $x2) && ($y >= $y1) && ($y <= $y2)) {
422: return 'APPROX_ANS';
423: }
1.12 albertel 424: return 'INCORRECT';
1.3 albertel 425: }
426:
1.1 albertel 427: sub end_rectangle {
1.12 albertel 428: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.26 albertel 429: my $result;
1.24 sakharuk 430: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
1.12 albertel 431: my $name = $Apache::imageresponse::curname;
432: my $area = &Apache::lonxml::endredirection;
433: &Apache::lonxml::debug("out is $area for $name");
1.18 albertel 434: if ( $Apache::imageresponse::conceptgroup
435: && !&Apache::response::showallfoils()) {
1.12 albertel 436: push @{ $Apache::response::conceptgroup{"$name.area"} },"rectangle:$area";
437: } else {
438: push @{ $Apache::response::foilgroup{"$name.area"} },"rectangle:$area";
1.7 albertel 439: }
1.26 albertel 440: } elsif ($target eq 'edit') {
441: $result=&Apache::edit::end_table();
1.12 albertel 442: }
1.26 albertel 443: return $result;
1.1 albertel 444: }
445: 1;
446: __END__
447:
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