Annotation of loncom/homework/imageresponse.pm, revision 1.37

1.12      albertel    1: # The LearningOnline Network with CAPA
1.14      albertel    2: # image click response style
                      3: #
1.37    ! albertel    4: # $Id: imageresponse.pm,v 1.36 2003/09/24 19:20:58 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: #
1.25      www        28: #FIXME LATER assumes multiple possible submissions but only one is possible 
                     29: #currently
1.3       albertel   30: 
1.1       albertel   31: package Apache::imageresponse;
1.34      albertel   32: use Apache::randomlylabel;
1.1       albertel   33: use strict;
1.21      harris41   34: use Image::Magick;
1.33      ng         35: use GD;
1.1       albertel   36: 
1.16      harris41   37: BEGIN {
1.36      albertel   38:     &Apache::lonxml::register('Apache::imageresponse',('imageresponse'));
1.1       albertel   39: }
                     40: 
                     41: sub start_imageresponse {
1.36      albertel   42:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     43:     my $result;
                     44:     #when in a radiobutton response use these
                     45:     &Apache::lonxml::register('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup'));
                     46:     push (@Apache::lonxml::namespace,'imageresponse');
                     47:     my $id = &Apache::response::start_response($parstack,$safeeval);
                     48:     if ($target eq 'meta') {
                     49: 	$result=&Apache::response::meta_package_write('imageresponse');
1.37    ! albertel   50:     } elsif ($target eq 'analyze') {
        !            51: 	my $part_id="$Apache::inputtags::part.$id";
        !            52: 	push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
1.36      albertel   53:     }
                     54:     return $result;
1.1       albertel   55: }
                     56: 
                     57: sub end_imageresponse {
1.30      albertel   58:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     59:     &Apache::response::end_response;
                     60:     pop @Apache::lonxml::namespace;
                     61:     &Apache::lonxml::deregister('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup'));
                     62:     my $result;
                     63:     if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
                     64:     return $result;
1.1       albertel   65: }
                     66: 
1.20      albertel   67: %Apache::response::foilgroup=();
1.1       albertel   68: sub start_foilgroup {
1.36      albertel   69:     %Apache::response::foilgroup=();
                     70:     $Apache::imageresponse::conceptgroup=0;
                     71:     &Apache::response::setrandomnumber();
                     72:     return '';
1.1       albertel   73: }
                     74: 
1.2       albertel   75: sub getfoilcounts {
1.36      albertel   76:     my ($parstack,$safeeval)=@_;
1.12      albertel   77: 
1.36      albertel   78:     my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
                     79:     # +1 since instructors will count from 1
                     80:     my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
                     81:     if (&Apache::response::showallfoils()) { $max=$count; }
                     82:     return ($count,$max);
1.2       albertel   83: }
                     84: 
                     85: sub whichfoils {
1.36      albertel   86:     my ($max)=@_;
                     87:     if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; }
                     88:     my @names = @{ $Apache::response::foilgroup{'names'} };
                     89:     my @whichopt =();
                     90:     while ((($#whichopt+1) < $max) && ($#names > -1)) {
                     91: 	&Apache::lonxml::debug("Have $#whichopt max is $max");
                     92: 	my $aopt;
                     93: 	if (&Apache::response::showallfoils()) {
                     94: 	    $aopt=0;
                     95: 	} else {
                     96: 	    $aopt=int(&Math::Random::random_uniform() * ($#names+1));
                     97: 	}
                     98: 	&Apache::lonxml::debug("From $#names elms, picking $aopt");
                     99: 	$aopt=splice(@names,$aopt,1);
                    100: 	&Apache::lonxml::debug("Picked $aopt");
                    101: 	push (@whichopt,$aopt);
                    102:     }
                    103:     return @whichopt;
1.2       albertel  104: }
                    105: 
                    106: sub displayfoils {
1.36      albertel  107:     my ($target,@whichopt) = @_;
                    108:     my $result ='';
                    109:     my $name;
                    110:     my $temp=1;
                    111:     foreach $name (@whichopt) {
                    112: 	$result.=$Apache::response::foilgroup{"$name.text"};
                    113: 	&Apache::lonxml::debug("Text is $result");
                    114: 	if ($target eq 'tex') {$result.="\\vskip 0 mm \n";} else {$result.="<br />\n";}
                    115: 	my $image=$Apache::response::foilgroup{"$name.image"};
                    116: 	&Apache::lonxml::debug("image is $image");
                    117: 	if ( &Apache::response::show_answer() ) {
                    118: 	    if ($target eq 'tex') {
                    119: 		$result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
                    120: 	    } else {
                    121: 		$result.="<img src=\"$image\"/> <br />\n";
                    122: 	    }
                    123: 	} else {
                    124: 	    if ($target eq 'tex') {
                    125: 		$result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
                    126: 	    } else {
                    127: 		$result.="<input type=\"image\" name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\" src=\"$image\"/> <br />\n";
                    128: 	    }
                    129: 	}
                    130: 	$temp++;
                    131:     }
                    132:     return $result;
1.2       albertel  133: }
                    134: 
1.3       albertel  135: sub gradefoils {
1.36      albertel  136:     my (@whichopt) = @_;
                    137:     my $x;
                    138:     my $y;
                    139:     my $result;
                    140:     my $id=$Apache::inputtags::response['-1'];
                    141:     my $temp=1;
                    142:     foreach my $name (@whichopt) {
                    143: 	$x=$ENV{"form.HWVAL_$id:$temp.x"};
                    144: 	$y=$ENV{"form.HWVAL_$id:$temp.y"};
                    145: 	&Apache::lonxml::debug("Got a x of $x and a y of $y for $name");
                    146: 	if (defined($x) && defined($y) &&
                    147: 	    defined(@{ $Apache::response::foilgroup{"$name.area"} })) {
                    148: 	    my @areas = @{ $Apache::response::foilgroup{"$name.area"} };
                    149: 	    my $grade="INCORRECT";
                    150: 	    foreach my $area (@areas) {
                    151: 		&Apache::lonxml::debug("Area is $area for $name");
                    152: 		$area =~ m/([a-z]*):/;
                    153: 		&Apache::lonxml::debug("Area of type $1");
                    154: 		if ($1 eq 'rectangle') {
                    155: 		    $grade=&grade_rectangle($area,$x,$y);
                    156: 		} else {
                    157: 		    &Apache::lonxml::error("Unknown area style $area");
                    158: 		}
                    159: 		&Apache::lonxml::debug("Area said $grade");
                    160: 		if ($grade eq 'APPROX_ANS') { last; }
                    161: 	    }
                    162: 	    &Apache::lonxml::debug("Foil was $grade");
                    163: 	    if ($grade eq 'INCORRECT') { $result= 'INCORRECT'; }
                    164: 	    if (($grade eq 'APPROX_ANS') && ($result ne 'APPROX_ANS')) { $result=$grade; }
                    165: 	    &Apache::lonxml::debug("Question is $result");
                    166: 	    $temp++;
1.9       albertel  167: 	}
1.36      albertel  168:     }
                    169:     $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}="$x:$y";
                    170:     $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$result;
                    171:     return '';
1.3       albertel  172: }
                    173: 
1.1       albertel  174: sub end_foilgroup {
1.36      albertel  175:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    176:     my $result='';
                    177:     my @whichopt;
                    178:     if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
                    179: 	my ($count,$max) = &getfoilcounts($parstack,$safeeval);
                    180: 	if ($count>$max) { $count=$max }
                    181: 	&Apache::lonxml::debug("Count is $count from $max");
                    182: 	@whichopt = &whichfoils($max);
                    183: 	if ($target eq 'web' || $target eq 'tex') {
                    184: 	    $result=&displayfoils($target,@whichopt);
                    185: 	} elsif ($target eq 'grade') {
                    186: 	    if ( defined $ENV{'form.submitted'}) { &gradefoils(@whichopt); }
1.37    ! albertel  187: 	} elsif ( $target eq 'analyze') {
        !           188: 	    &Apache::response::analyze_store_foilgroup(\@whichopt,
        !           189: 						      ['text','image','area']);
        !           190: 	}
1.36      albertel  191:     } elsif ($target eq 'edit') {
                    192: 	$result=&Apache::edit::end_table();
                    193:     }
                    194:     return $result;
1.1       albertel  195: }
                    196: 
                    197: sub start_conceptgroup {
1.36      albertel  198:     $Apache::imageresponse::conceptgroup=1;
                    199:     %Apache::response::conceptgroup=();
                    200:     return '';
1.1       albertel  201: }
                    202: 
                    203: sub end_conceptgroup {
1.36      albertel  204:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    205:     $Apache::imageresponse::conceptgroup=0;
                    206:     my $result;
1.37    ! albertel  207:     if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' ||
        !           208: 	$target eq 'analyze') {
        !           209: 	&Apache::response::pick_foil_for_concept($target,
        !           210: 						 ['area','text','image'],
        !           211: 						 \%Apache::hint::image,
        !           212: 						 $parstack,$safeeval);
1.36      albertel  213:     } elsif ($target eq 'edit') {
                    214: 	$result=&Apache::edit::end_table();
                    215:     }
                    216:     return $result;
1.31      albertel  217: }
                    218: 
                    219: sub insert_foil {
                    220:     return '
                    221:        <foil>
                    222:            <image></image>
                    223:            <text></text>
                    224:            <rectangle></rectangle>
                    225:        </foil>
                    226: ';
1.1       albertel  227: }
                    228: 
1.12      albertel  229: $Apache::imageresponse::curname='';
1.1       albertel  230: sub start_foil {
1.36      albertel  231:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.37    ! albertel  232:     if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' ||
        !           233: 	$target eq 'analyze') {
1.36      albertel  234: 	my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
                    235: 	if ($name eq '') { $name=$Apache::lonxml::curdepth; }
                    236: 	if ( $Apache::imageresponse::conceptgroup
                    237: 	     && !&Apache::response::showallfoils()) {
                    238: 	    push(@{ $Apache::response::conceptgroup{'names'} }, $name);
                    239: 	} else {
                    240: 	    push(@{ $Apache::response::foilgroup{'names'} }, $name);
                    241: 	}
                    242: 	$Apache::imageresponse::curname=$name;
                    243:     }
                    244:     return '';
1.1       albertel  245: }
                    246: 
                    247: sub end_foil {
1.26      albertel  248:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    249:     my $result;
                    250:     if ($target eq 'edit') {
                    251: 	$result=&Apache::edit::end_table();
                    252:     }
                    253:     return $result;
1.1       albertel  254: }
                    255: 
                    256: sub start_text {
1.36      albertel  257:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    258:     my $result='';
1.37    ! albertel  259:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') { 
1.36      albertel  260: 	&Apache::lonxml::startredirection; 
                    261:     } elsif ($target eq 'edit') {
                    262: 	my $descr=&Apache::lonxml::get_all_text('/text',$parser);
                    263: 	$result=&Apache::edit::tag_start($target,$token,'Task Description').
                    264: 	    &Apache::edit::editfield($token->[1],$descr,'Text',60,2).
                    265: 	    &Apache::edit::end_row();
                    266:     } elsif ($target eq "modified") {
                    267: 	my $descr=&Apache::lonxml::get_all_text('/text',$parser);
                    268: 	$result=$token->[4].&Apache::edit::modifiedfield($token);
                    269: 	&Apache::lonxml::debug($result);
                    270:     }
                    271:     return $result;
1.1       albertel  272: }
                    273: 
                    274: sub end_text {
1.36      albertel  275:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    276:     my $result;
1.37    ! albertel  277:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.36      albertel  278: 	my $name = $Apache::imageresponse::curname;
                    279: 	if ( $Apache::imageresponse::conceptgroup
                    280: 	     && !&Apache::response::showallfoils() ) {
                    281: 	    $Apache::response::conceptgroup{"$name.text"} = &Apache::lonxml::endredirection;
                    282: 	} else {
                    283: 	    $Apache::response::foilgroup{"$name.text"} = &Apache::lonxml::endredirection;
                    284: 	}
                    285:     } elsif ($target eq 'edit') {
                    286: 	$result=&Apache::edit::end_table();
                    287:     }
                    288:     return $result;
1.1       albertel  289: }
                    290: 
                    291: sub start_image {
1.36      albertel  292:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    293:     my $result='';
1.37    ! albertel  294:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') { 
1.36      albertel  295: 	&Apache::lonxml::startredirection; 
                    296:     } elsif ($target eq 'edit') {
                    297: 	my $bgimg=&Apache::lonxml::get_all_text('/image',$parser);
                    298: 	$Apache::edit::bgimgsrc=$bgimg;
                    299: 	$Apache::edit::bgimgsrcdepth=$Apache::lonxml::curdepth;
                    300: 
                    301: 	$result=&Apache::edit::tag_start($target,$token,'Clickable Image').
                    302: 	    &Apache::edit::editline($token->[1],$bgimg,'Image Source File',40);
                    303: 	$result.=&Apache::edit::browse(undef,'textnode').' ';
                    304: 	$result.=&Apache::edit::search(undef,'textnode').
                    305: 	    &Apache::edit::end_row();
                    306:     } elsif ($target eq "modified") {
                    307: 	my $bgimg=&Apache::lonxml::get_all_text('/image',$parser);
                    308: 	$result=$token->[4].&Apache::edit::modifiedfield($token);
                    309: 	&Apache::lonxml::debug($result);
                    310:     }
                    311:     return $result;
1.1       albertel  312: }
                    313: 
                    314: sub end_image {
1.36      albertel  315:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    316:     my $result;
                    317:     my $name = $Apache::imageresponse::curname;
                    318:     if ($target eq 'web') {
                    319: 	my $image = &Apache::lonxml::endredirection;
                    320: 	&Apache::lonxml::debug("original image is $image");
                    321: 	my $id=$Apache::inputtags::response['-1'];
                    322: 	my $temp=1;
                    323: 	my $x=$ENV{"form.HWVAL_$id:$temp.x"};
                    324: 	my $y=$ENV{"form.HWVAL_$id:$temp.y"};
                    325: 	if (defined ($x) && defined ($y)) {
                    326: 	    &Apache::lonxml::debug("x and y defined as $x,$y");
                    327: 	    my $currentImage = &Apache::randomlylabel::get_image('/home/httpd/html'.$image,1);
                    328: 	    if (! defined($currentImage)) {
                    329: 		&Apache::lonnet::logthis('Unable to create image object for '.$image);
                    330: 		return '';
                    331: 	    }
                    332: 	    my $red;
                    333: 	    if (!($red = $currentImage->colorResolve(255,0,0))) {
                    334: 		$red = $currentImage->colorClosestHWB(255,0,0);
                    335: 	    }
                    336: 	    my $length = 6;
                    337: 	    $currentImage->line($x-$length,$y-$length,$x+$length,$y+$length,$red);
                    338: 	    $currentImage->line($x-$length,$y+$length,$x+$length,$y-$length,$red);
                    339: 
                    340: 	    my ($nameWOext) = ($image =~ /^.*\/(.*)\..*$/);
                    341: 	    &Apache::lonxml::debug("graph name $nameWOext");
                    342: 	    my $webImageName = "/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_".
                    343: 		$nameWOext.'.png'; #needs to be more random or specific
                    344: 	    my $newImageName = '/home/httpd'.$webImageName;
                    345: 	    
                    346: 	    my $imgfh = Apache::File->new('>'.$newImageName); 
                    347: 	    print $imgfh $currentImage->png;
                    348: 	    $image = $webImageName;
                    349: 	}
                    350: 	&Apache::lonxml::debug("out image is $image");
1.37    ! albertel  351: 	if ( $Apache::imageresponse::conceptgroup
        !           352: 	     && !&Apache::response::showallfoils()) {
        !           353: 	    $Apache::response::conceptgroup{"$name.image"} = $image;
        !           354: 	} else {
        !           355: 	    $Apache::response::foilgroup{"$name.image"} = $image;
        !           356: 	}
        !           357:     } elsif ($target eq 'analyze') {
        !           358: 	my $image = &Apache::lonxml::endredirection;
1.36      albertel  359: 	if ( $Apache::imageresponse::conceptgroup
                    360: 	     && !&Apache::response::showallfoils()) {
                    361: 	    $Apache::response::conceptgroup{"$name.image"} = $image;
                    362: 	} else {
                    363: 	    $Apache::response::foilgroup{"$name.image"} = $image;
                    364: 	}
                    365:     } elsif ($target eq 'edit') {
                    366: 	$result=&Apache::edit::end_table();
                    367:     } elsif ($target eq 'tex') {
                    368: 	my $src = &Apache::lonxml::endredirection;
                    369: 	$src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
                    370: 	my $width_param = '';
                    371: 	my $height_param = '';
                    372: 	my $scaling = .3;
                    373: 	my $image = Image::Magick->new;
                    374: 	my $current_figure = $image->Read($src);
                    375: 	$width_param = $image->Get('width') * $scaling;;
                    376: 	$height_param = $image->Get('height') * $scaling;;
                    377: 	undef $image;
                    378: 	my $epssrc = $src;
                    379: 	$epssrc =~ s/(\.gif|\.jpg)$/\.eps/i;
                    380: 	if (not -e $epssrc) {
                    381: 	    my $localfile = $epssrc;
                    382: 	    $localfile =~ s/.*(\/res)/$1/;	
                    383: 	    my $file;
                    384: 	    my $path;	
                    385: 	    if ($localfile =~ m!(.*)/([^/]*)$!) {
                    386: 		$file = $2;
                    387: 		$path = $1.'/'; 
                    388: 	    }	
                    389: 	    my $signal_eps = 0;
                    390: 	    my @content_directory = &Apache::lonnet::dirlist($path);
                    391: 	    for (my $iy=0;$iy<=$#content_directory;$iy++) {
                    392: 		my @tempo_array = split(/&/,$content_directory[$iy]);
                    393: 		$content_directory[$iy] = $tempo_array[0];
                    394: 		if ($file eq $tempo_array[0]) {
                    395: 		    $signal_eps = 1;
                    396: 		    last;
                    397: 		}
                    398: 	    }
                    399: 	    if ($signal_eps) {
                    400: 		my $eps_file = &Apache::lonnet::getfile($localfile);
                    401: 	    } else {
                    402: 		$localfile = $src;
                    403: 		$localfile =~ s/.*(\/res)/$1/;	
                    404: 		my $as = &Apache::lonnet::getfile($src);		      
                    405: 	    }
                    406: 	}
1.19      sakharuk  407: 	my $file;
                    408: 	my $path;	
1.36      albertel  409: 	if ($src =~ m!(.*)/([^/]*)$!) {
1.19      sakharuk  410: 	    $file = $2;
                    411: 	    $path = $1.'/'; 
1.36      albertel  412: 	}
                    413: 	my $newsrc = $src;
                    414: 	$newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
                    415: 	$file=~s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
                    416: 	#do we have any specified size of the picture?
                    417: 	my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval); 
                    418: 	my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval); 
                    419: 	my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval);
                    420: 	if ($TeXwidth ne '') { 
                    421: 	    $width_param = $TeXwidth; 
                    422: 	} elsif ($TeXheight ne '') { 
                    423: 	    $width_param = $TeXheight/$height_param*$width_param;
                    424: 	} elsif ($width ne '') {
                    425: 	    $width_param = $width*$scaling;      
                    426: 	}
                    427: 	#where can we find the picture?
                    428: 	if (-e $newsrc) {
                    429: 	    if ($path) {
                    430: 		$Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
1.19      sakharuk  431: 	    }
                    432: 	} else {
1.36      albertel  433: 	    my $temp_file;
                    434: 	    my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
                    435: 	    $temp_file = Apache::File->new('>>'.$filename); 
                    436: 	    print $temp_file "$src\n";
                    437: 	    $Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
1.19      sakharuk  438: 	}
1.36      albertel  439:     } 
                    440:     return $result;
1.1       albertel  441: }
                    442: 
                    443: sub start_rectangle {
1.36      albertel  444:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    445:     my $result='';
                    446:     if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') { 
                    447: 	&Apache::lonxml::startredirection; 
                    448:     } elsif ($target eq 'edit') {
                    449: 	my $coords=&Apache::lonxml::get_all_text('/rectangle',$parser);
                    450: 	$result=&Apache::edit::tag_start($target,$token,'Rectangle').
                    451: 	    &Apache::edit::editline($token->[1],$coords,'Coordinate Pairs',40).
                    452: 	    &Apache::edit::entercoordpair(undef,'textnode').
                    453: 	    &Apache::edit::end_row();
                    454:     } elsif ($target eq "modified") {
                    455: 	my $coords=&Apache::lonxml::get_all_text('/rectangle',$parser);
                    456: 	$result=$token->[4].&Apache::edit::modifiedfield($token);
                    457: 	&Apache::lonxml::debug($result);
                    458:     }
                    459:     return $result;
1.1       albertel  460: }
                    461: 
1.3       albertel  462: sub grade_rectangle {
1.36      albertel  463:     my ($spec,$x,$y) = @_;
                    464:     &Apache::lonxml::debug("Spec is $spec");
                    465:     $spec=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/;
                    466:     my $x1=$1;
                    467:     my $y1=$2;
                    468:     my $x2=$3;
                    469:     my $y2=$4;
                    470:     &Apache::lonxml::debug("Point $x1,$y1,$x2,$y2");
                    471:     if ($x1 > $x2) { my $temp=$x1;$x1=$x2;$x2=$temp; }
                    472:     if ($y1 > $y2) { my $temp=$y1;$y1=$y2;$y2=$temp; }
                    473:     if (($x >= $x1) && ($x <= $x2) && ($y >= $y1) && ($y <= $y2)) {
                    474: 	return 'APPROX_ANS';
                    475:     }
                    476:     return 'INCORRECT';
1.3       albertel  477: }
                    478: 
1.1       albertel  479: sub end_rectangle {
1.36      albertel  480:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    481:     my $result;
                    482:     if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
                    483: 	my $name = $Apache::imageresponse::curname;
                    484: 	my $area = &Apache::lonxml::endredirection;
                    485: 	&Apache::lonxml::debug("out is $area for $name");
                    486: 	if ( $Apache::imageresponse::conceptgroup
                    487: 	     && !&Apache::response::showallfoils()) {
                    488: 	    push @{ $Apache::response::conceptgroup{"$name.area"} },"rectangle:$area";
                    489: 	} else {
                    490: 	    push @{ $Apache::response::foilgroup{"$name.area"} },"rectangle:$area";
                    491: 	}
                    492:     } elsif ($target eq 'edit') {
                    493: 	$result=&Apache::edit::end_table();
                    494:     }
                    495:     return $result;
1.1       albertel  496: }
                    497: 1;
                    498: __END__
                    499:  

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