Annotation of loncom/homework/imageresponse.pm, revision 1.42

1.12      albertel    1: # The LearningOnline Network with CAPA
1.14      albertel    2: # image click response style
                      3: #
1.42    ! albertel    4: # $Id: imageresponse.pm,v 1.41 2003/11/11 00:25:24 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;
                     32: use strict;
1.21      harris41   33: use Image::Magick;
1.40      albertel   34: use Apache::randomlylabel;
                     35: use Apache::Constants qw(:common :http);
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: 
1.40      albertel  106: sub prep_image {
1.42    ! albertel  107:     my ($image,$mode,$name)=@_;
1.40      albertel  108:     my $part=$Apache::inputtags::part;
1.41      albertel  109:     my $respid=$Apache::inputtags::response['-1'];
                    110:     my $id=&Apache::loncommon::get_cgi_id();
                    111:     my %x;
                    112:     $x{"cgi.$id.BGIMG"}=$image;
                    113:     my ($x,$y)=split(/:/,$Apache::lonhomework::history{"resource.$part.$respid.submission"});
1.40      albertel  114:     #draws 2 xs on the image at the clicked location
                    115:     #one in white and then one in red on top of the one in white
                    116:     if (defined($x) && defined($y)) {
1.41      albertel  117: 	$x{"cgi.$id.LINECOUNT"}=4;
1.40      albertel  118: 	my $length = 6;
                    119: 	my $width = 1;
                    120: 	my $extrawidth = 2;
1.41      albertel  121: 	$x{"cgi.$id.LINE0"}=
                    122: 	    join(':',(($x-$length),($y-$length),($x+$length),($y+$length),
                    123: 		      "FFFFFF",($width+$extrawidth)));
                    124: 	$x{"cgi.$id.LINE1"}=
                    125: 	    join(':',(($x-$length),($y+$length),($x+$length),($y-$length),
                    126: 		      "FFFFFF",($width+$extrawidth)));
                    127: 	$x{"cgi.$id.LINE2"}=
                    128: 	    join(':',(($x-$length),($y-$length),($x+$length),($y+$length),
                    129: 		      "FF0000",($width)));
                    130: 	$x{"cgi.$id.LINE3"}=
                    131: 	    join(':',(($x-$length),($y+$length),($x+$length),($y-$length),
                    132: 		      "FF0000",($width)));
1.40      albertel  133:     }
1.42    ! albertel  134:     if ($mode eq 'answer') {
        !           135: 	my $width = 1;
        !           136: 	my $extrawidth = 2;
        !           137: 	my @areas = @{ $Apache::response::foilgroup{"$name.area"} };
        !           138: 	foreach my $area (@areas) {
        !           139: 	    my ($x1,$y1,$x2,$y2)=
        !           140: 		($area=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/);
        !           141: 	    my $i=$x{"cgi.$id.BOXCOUNT"}++;
        !           142: 	    $x{"cgi.$id.BOX$i"}=join(':',($x1,$y1,$x2,$y2,"FFFFFF",
        !           143: 					  ($width+$extrawidth)));
        !           144: 	    $i=$x{"cgi.$id.BOXCOUNT"}++;
        !           145: 	    $x{"cgi.$id.BOX$i"}=join(':',($x1,$y1,$x2,$y2,"00FF00",$width));
        !           146: 	}
        !           147:     }
1.41      albertel  148:     &Apache::lonnet::appenv(%x);
                    149:     return $id;
1.40      albertel  150: }
                    151: 
1.2       albertel  152: sub displayfoils {
1.36      albertel  153:     my ($target,@whichopt) = @_;
                    154:     my $result ='';
                    155:     my $name;
                    156:     my $temp=1;
                    157:     foreach $name (@whichopt) {
                    158: 	$result.=$Apache::response::foilgroup{"$name.text"};
                    159: 	&Apache::lonxml::debug("Text is $result");
                    160: 	if ($target eq 'tex') {$result.="\\vskip 0 mm \n";} else {$result.="<br />\n";}
                    161: 	my $image=$Apache::response::foilgroup{"$name.image"};
                    162: 	&Apache::lonxml::debug("image is $image");
1.40      albertel  163: 	if ( $target eq 'web' && $image !~ /^http:/ ) {
                    164: 	    $image=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$image);
                    165: 	    if (&Apache::lonnet::repcopy($image) ne OK) {
                    166: 		$image='/home/httpd/html/adm/lonKaputt/lonlogo_broken.gif';
                    167: 	    }
                    168: 	}
                    169: 	&Apache::lonxml::debug("image is $image");
1.36      albertel  170: 	if ( &Apache::response::show_answer() ) {
                    171: 	    if ($target eq 'tex') {
                    172: 		$result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
                    173: 	    } else {
1.42    ! albertel  174: 		my $token=&prep_image($image,'answer',$name);
1.40      albertel  175: 		$result.="<img src=\"/adm/randomlabel.png?token=$token\" /><br />\n";
1.36      albertel  176: 	    }
                    177: 	} else {
                    178: 	    if ($target eq 'tex') {
                    179: 		$result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
                    180: 	    } else {
1.40      albertel  181: 		my $id=$Apache::inputtags::response['-1'];
                    182: 		my $token=&prep_image($image);
                    183: 		my $temp=1;
                    184: 		$result.="<input type=\"image\" name=\"HWVAL_$id:$temp\" ".
                    185: 		    "src=\"/adm/randomlabel.png?token=$token\" /><br />\n";
1.36      albertel  186: 	    }
                    187: 	}
                    188: 	$temp++;
                    189:     }
                    190:     return $result;
1.2       albertel  191: }
                    192: 
1.3       albertel  193: sub gradefoils {
1.36      albertel  194:     my (@whichopt) = @_;
                    195:     my $x;
                    196:     my $y;
                    197:     my $result;
                    198:     my $id=$Apache::inputtags::response['-1'];
                    199:     my $temp=1;
                    200:     foreach my $name (@whichopt) {
                    201: 	$x=$ENV{"form.HWVAL_$id:$temp.x"};
                    202: 	$y=$ENV{"form.HWVAL_$id:$temp.y"};
                    203: 	&Apache::lonxml::debug("Got a x of $x and a y of $y for $name");
                    204: 	if (defined($x) && defined($y) &&
                    205: 	    defined(@{ $Apache::response::foilgroup{"$name.area"} })) {
                    206: 	    my @areas = @{ $Apache::response::foilgroup{"$name.area"} };
                    207: 	    my $grade="INCORRECT";
                    208: 	    foreach my $area (@areas) {
                    209: 		&Apache::lonxml::debug("Area is $area for $name");
                    210: 		$area =~ m/([a-z]*):/;
                    211: 		&Apache::lonxml::debug("Area of type $1");
                    212: 		if ($1 eq 'rectangle') {
                    213: 		    $grade=&grade_rectangle($area,$x,$y);
                    214: 		} else {
                    215: 		    &Apache::lonxml::error("Unknown area style $area");
                    216: 		}
                    217: 		&Apache::lonxml::debug("Area said $grade");
                    218: 		if ($grade eq 'APPROX_ANS') { last; }
                    219: 	    }
                    220: 	    &Apache::lonxml::debug("Foil was $grade");
                    221: 	    if ($grade eq 'INCORRECT') { $result= 'INCORRECT'; }
                    222: 	    if (($grade eq 'APPROX_ANS') && ($result ne 'APPROX_ANS')) { $result=$grade; }
                    223: 	    &Apache::lonxml::debug("Question is $result");
                    224: 	    $temp++;
1.9       albertel  225: 	}
1.36      albertel  226:     }
                    227:     $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}="$x:$y";
                    228:     $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$result;
                    229:     return '';
1.3       albertel  230: }
                    231: 
1.1       albertel  232: sub end_foilgroup {
1.36      albertel  233:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    234:     my $result='';
                    235:     my @whichopt;
1.38      albertel  236:     if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' ||
                    237: 	$target eq 'analyze') {
1.36      albertel  238: 	my ($count,$max) = &getfoilcounts($parstack,$safeeval);
                    239: 	if ($count>$max) { $count=$max }
                    240: 	&Apache::lonxml::debug("Count is $count from $max");
                    241: 	@whichopt = &whichfoils($max);
                    242: 	if ($target eq 'web' || $target eq 'tex') {
                    243: 	    $result=&displayfoils($target,@whichopt);
                    244: 	} elsif ($target eq 'grade') {
                    245: 	    if ( defined $ENV{'form.submitted'}) { &gradefoils(@whichopt); }
1.37      albertel  246: 	} elsif ( $target eq 'analyze') {
                    247: 	    &Apache::response::analyze_store_foilgroup(\@whichopt,
                    248: 						      ['text','image','area']);
                    249: 	}
1.36      albertel  250:     } elsif ($target eq 'edit') {
                    251: 	$result=&Apache::edit::end_table();
                    252:     }
                    253:     return $result;
1.1       albertel  254: }
                    255: 
                    256: sub start_conceptgroup {
1.36      albertel  257:     $Apache::imageresponse::conceptgroup=1;
                    258:     %Apache::response::conceptgroup=();
                    259:     return '';
1.1       albertel  260: }
                    261: 
                    262: sub end_conceptgroup {
1.36      albertel  263:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    264:     $Apache::imageresponse::conceptgroup=0;
                    265:     my $result;
1.37      albertel  266:     if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' ||
                    267: 	$target eq 'analyze') {
                    268: 	&Apache::response::pick_foil_for_concept($target,
                    269: 						 ['area','text','image'],
                    270: 						 \%Apache::hint::image,
                    271: 						 $parstack,$safeeval);
1.36      albertel  272:     } elsif ($target eq 'edit') {
                    273: 	$result=&Apache::edit::end_table();
                    274:     }
                    275:     return $result;
1.31      albertel  276: }
                    277: 
                    278: sub insert_foil {
                    279:     return '
                    280:        <foil>
                    281:            <image></image>
                    282:            <text></text>
                    283:            <rectangle></rectangle>
                    284:        </foil>
                    285: ';
1.1       albertel  286: }
                    287: 
1.12      albertel  288: $Apache::imageresponse::curname='';
1.1       albertel  289: sub start_foil {
1.36      albertel  290:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.37      albertel  291:     if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' ||
                    292: 	$target eq 'analyze') {
1.36      albertel  293: 	my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
                    294: 	if ($name eq '') { $name=$Apache::lonxml::curdepth; }
                    295: 	if ( $Apache::imageresponse::conceptgroup
                    296: 	     && !&Apache::response::showallfoils()) {
                    297: 	    push(@{ $Apache::response::conceptgroup{'names'} }, $name);
                    298: 	} else {
                    299: 	    push(@{ $Apache::response::foilgroup{'names'} }, $name);
                    300: 	}
                    301: 	$Apache::imageresponse::curname=$name;
                    302:     }
                    303:     return '';
1.1       albertel  304: }
                    305: 
                    306: sub end_foil {
1.26      albertel  307:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    308:     my $result;
                    309:     if ($target eq 'edit') {
                    310: 	$result=&Apache::edit::end_table();
                    311:     }
                    312:     return $result;
1.1       albertel  313: }
                    314: 
                    315: sub start_text {
1.36      albertel  316:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    317:     my $result='';
1.37      albertel  318:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') { 
1.36      albertel  319: 	&Apache::lonxml::startredirection; 
                    320:     } elsif ($target eq 'edit') {
                    321: 	my $descr=&Apache::lonxml::get_all_text('/text',$parser);
                    322: 	$result=&Apache::edit::tag_start($target,$token,'Task Description').
                    323: 	    &Apache::edit::editfield($token->[1],$descr,'Text',60,2).
                    324: 	    &Apache::edit::end_row();
                    325:     } elsif ($target eq "modified") {
1.39      albertel  326: 	$result=$token->[4].&Apache::edit::modifiedfield('/text',$parser);
1.36      albertel  327:     }
                    328:     return $result;
1.1       albertel  329: }
                    330: 
                    331: sub end_text {
1.36      albertel  332:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    333:     my $result;
1.37      albertel  334:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.36      albertel  335: 	my $name = $Apache::imageresponse::curname;
                    336: 	if ( $Apache::imageresponse::conceptgroup
                    337: 	     && !&Apache::response::showallfoils() ) {
                    338: 	    $Apache::response::conceptgroup{"$name.text"} = &Apache::lonxml::endredirection;
                    339: 	} else {
                    340: 	    $Apache::response::foilgroup{"$name.text"} = &Apache::lonxml::endredirection;
                    341: 	}
                    342:     } elsif ($target eq 'edit') {
                    343: 	$result=&Apache::edit::end_table();
                    344:     }
                    345:     return $result;
1.1       albertel  346: }
                    347: 
                    348: sub start_image {
1.36      albertel  349:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    350:     my $result='';
1.37      albertel  351:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') { 
1.36      albertel  352: 	&Apache::lonxml::startredirection; 
                    353:     } elsif ($target eq 'edit') {
                    354: 	my $bgimg=&Apache::lonxml::get_all_text('/image',$parser);
                    355: 	$Apache::edit::bgimgsrc=$bgimg;
                    356: 	$Apache::edit::bgimgsrcdepth=$Apache::lonxml::curdepth;
                    357: 
                    358: 	$result=&Apache::edit::tag_start($target,$token,'Clickable Image').
                    359: 	    &Apache::edit::editline($token->[1],$bgimg,'Image Source File',40);
                    360: 	$result.=&Apache::edit::browse(undef,'textnode').' ';
                    361: 	$result.=&Apache::edit::search(undef,'textnode').
                    362: 	    &Apache::edit::end_row();
                    363:     } elsif ($target eq "modified") {
1.39      albertel  364: 	$result=$token->[4].&Apache::edit::modifiedfield('/image',$parser);
1.36      albertel  365:     }
                    366:     return $result;
1.1       albertel  367: }
                    368: 
                    369: sub end_image {
1.36      albertel  370:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    371:     my $result;
                    372:     my $name = $Apache::imageresponse::curname;
                    373:     if ($target eq 'web') {
                    374: 	my $image = &Apache::lonxml::endredirection;
                    375: 	&Apache::lonxml::debug("original image is $image");
1.37      albertel  376: 	if ( $Apache::imageresponse::conceptgroup
                    377: 	     && !&Apache::response::showallfoils()) {
                    378: 	    $Apache::response::conceptgroup{"$name.image"} = $image;
                    379: 	} else {
                    380: 	    $Apache::response::foilgroup{"$name.image"} = $image;
                    381: 	}
                    382:     } elsif ($target eq 'analyze') {
                    383: 	my $image = &Apache::lonxml::endredirection;
1.36      albertel  384: 	if ( $Apache::imageresponse::conceptgroup
                    385: 	     && !&Apache::response::showallfoils()) {
                    386: 	    $Apache::response::conceptgroup{"$name.image"} = $image;
                    387: 	} else {
                    388: 	    $Apache::response::foilgroup{"$name.image"} = $image;
                    389: 	}
                    390:     } elsif ($target eq 'edit') {
                    391: 	$result=&Apache::edit::end_table();
                    392:     } elsif ($target eq 'tex') {
                    393: 	my $src = &Apache::lonxml::endredirection;
                    394: 	$src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
                    395: 	my $width_param = '';
                    396: 	my $height_param = '';
                    397: 	my $scaling = .3;
                    398: 	my $image = Image::Magick->new;
                    399: 	my $current_figure = $image->Read($src);
                    400: 	$width_param = $image->Get('width') * $scaling;;
                    401: 	$height_param = $image->Get('height') * $scaling;;
                    402: 	undef $image;
                    403: 	my $epssrc = $src;
                    404: 	$epssrc =~ s/(\.gif|\.jpg)$/\.eps/i;
                    405: 	if (not -e $epssrc) {
                    406: 	    my $localfile = $epssrc;
                    407: 	    $localfile =~ s/.*(\/res)/$1/;	
                    408: 	    my $file;
                    409: 	    my $path;	
                    410: 	    if ($localfile =~ m!(.*)/([^/]*)$!) {
                    411: 		$file = $2;
                    412: 		$path = $1.'/'; 
                    413: 	    }	
                    414: 	    my $signal_eps = 0;
                    415: 	    my @content_directory = &Apache::lonnet::dirlist($path);
                    416: 	    for (my $iy=0;$iy<=$#content_directory;$iy++) {
                    417: 		my @tempo_array = split(/&/,$content_directory[$iy]);
                    418: 		$content_directory[$iy] = $tempo_array[0];
                    419: 		if ($file eq $tempo_array[0]) {
                    420: 		    $signal_eps = 1;
                    421: 		    last;
                    422: 		}
                    423: 	    }
                    424: 	    if ($signal_eps) {
                    425: 		my $eps_file = &Apache::lonnet::getfile($localfile);
                    426: 	    } else {
                    427: 		$localfile = $src;
                    428: 		$localfile =~ s/.*(\/res)/$1/;	
                    429: 		my $as = &Apache::lonnet::getfile($src);		      
                    430: 	    }
                    431: 	}
1.19      sakharuk  432: 	my $file;
                    433: 	my $path;	
1.36      albertel  434: 	if ($src =~ m!(.*)/([^/]*)$!) {
1.19      sakharuk  435: 	    $file = $2;
                    436: 	    $path = $1.'/'; 
1.36      albertel  437: 	}
                    438: 	my $newsrc = $src;
                    439: 	$newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
                    440: 	$file=~s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
                    441: 	#do we have any specified size of the picture?
                    442: 	my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval); 
                    443: 	my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval); 
                    444: 	my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval);
                    445: 	if ($TeXwidth ne '') { 
                    446: 	    $width_param = $TeXwidth; 
                    447: 	} elsif ($TeXheight ne '') { 
                    448: 	    $width_param = $TeXheight/$height_param*$width_param;
                    449: 	} elsif ($width ne '') {
                    450: 	    $width_param = $width*$scaling;      
                    451: 	}
                    452: 	#where can we find the picture?
                    453: 	if (-e $newsrc) {
                    454: 	    if ($path) {
                    455: 		$Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
1.19      sakharuk  456: 	    }
                    457: 	} else {
1.36      albertel  458: 	    my $temp_file;
                    459: 	    my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
                    460: 	    $temp_file = Apache::File->new('>>'.$filename); 
                    461: 	    print $temp_file "$src\n";
                    462: 	    $Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
1.19      sakharuk  463: 	}
1.36      albertel  464:     } 
                    465:     return $result;
1.1       albertel  466: }
                    467: 
                    468: sub start_rectangle {
1.36      albertel  469:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    470:     my $result='';
1.38      albertel  471:     if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' ||
                    472: 	$target eq 'analyze') { 
1.36      albertel  473: 	&Apache::lonxml::startredirection; 
                    474:     } elsif ($target eq 'edit') {
                    475: 	my $coords=&Apache::lonxml::get_all_text('/rectangle',$parser);
                    476: 	$result=&Apache::edit::tag_start($target,$token,'Rectangle').
                    477: 	    &Apache::edit::editline($token->[1],$coords,'Coordinate Pairs',40).
                    478: 	    &Apache::edit::entercoordpair(undef,'textnode').
                    479: 	    &Apache::edit::end_row();
                    480:     } elsif ($target eq "modified") {
1.39      albertel  481: 	$result=$token->[4].&Apache::edit::modifiedfield('/rectangle',$parser);
1.36      albertel  482:     }
                    483:     return $result;
1.1       albertel  484: }
                    485: 
1.3       albertel  486: sub grade_rectangle {
1.36      albertel  487:     my ($spec,$x,$y) = @_;
                    488:     &Apache::lonxml::debug("Spec is $spec");
                    489:     $spec=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/;
                    490:     my $x1=$1;
                    491:     my $y1=$2;
                    492:     my $x2=$3;
                    493:     my $y2=$4;
                    494:     &Apache::lonxml::debug("Point $x1,$y1,$x2,$y2");
                    495:     if ($x1 > $x2) { my $temp=$x1;$x1=$x2;$x2=$temp; }
                    496:     if ($y1 > $y2) { my $temp=$y1;$y1=$y2;$y2=$temp; }
                    497:     if (($x >= $x1) && ($x <= $x2) && ($y >= $y1) && ($y <= $y2)) {
                    498: 	return 'APPROX_ANS';
                    499:     }
                    500:     return 'INCORRECT';
1.3       albertel  501: }
                    502: 
1.1       albertel  503: sub end_rectangle {
1.36      albertel  504:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    505:     my $result;
1.38      albertel  506:     if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' ||
                    507: 	$target eq 'analyze') {
1.36      albertel  508: 	my $name = $Apache::imageresponse::curname;
                    509: 	my $area = &Apache::lonxml::endredirection;
                    510: 	&Apache::lonxml::debug("out is $area for $name");
                    511: 	if ( $Apache::imageresponse::conceptgroup
                    512: 	     && !&Apache::response::showallfoils()) {
                    513: 	    push @{ $Apache::response::conceptgroup{"$name.area"} },"rectangle:$area";
                    514: 	} else {
                    515: 	    push @{ $Apache::response::foilgroup{"$name.area"} },"rectangle:$area";
                    516: 	}
                    517:     } elsif ($target eq 'edit') {
                    518: 	$result=&Apache::edit::end_table();
                    519:     }
                    520:     return $result;
1.1       albertel  521: }
                    522: 1;
                    523: __END__
                    524:  

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