--- loncom/homework/imageresponse.pm 2001/08/06 17:39:37 1.11 +++ loncom/homework/imageresponse.pm 2003/01/16 02:55:05 1.23 @@ -1,314 +1,380 @@ -# The LON-CAPA image response handler -# -# Image click response style +# The LearningOnline Network with CAPA +# image click response style +# +# $Id: imageresponse.pm,v 1.23 2003/01/16 02:55:05 albertel Exp $ +# +# Copyright Michigan State University Board of Trustees +# +# This file is part of the LearningOnline Network with CAPA (LON-CAPA). +# +# LON-CAPA is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# LON-CAPA is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with LON-CAPA; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# /home/httpd/html/adm/gpl.txt +# +# http://www.lon-capa.org/ # -# YEAR=2001 -# 2/7,2/9,2/22,3/1,5/4,5/15,5/31,6/2,6/26 Guy Albertelli -# 8/6 Scott Harrison -#FIXME assumes multiple possible submissions but only one is possible currently +#FIXME assumes multiple possbile submissions but only one is possible currently package Apache::imageresponse; use strict; +use Image::Magick; -# ======================================================================= BEGIN -sub BEGIN { - &Apache::lonxml::register('Apache::imageresponse',('imageresponse')); +BEGIN { + &Apache::lonxml::register('Apache::imageresponse',('imageresponse')); } -# ======================================================== Start image response sub start_imageresponse { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; - #when in a radiobutton response use these - &Apache::lonxml::register('Apache::imageresponse',('foilgroup','foil', - 'text','image', - 'rectangle', - 'conceptgroup')); - push (@Apache::lonxml::namespace,'imageresponse'); - my $id = &Apache::response::start_response($parstack,$safeeval); - return ''; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result; + #when in a radiobutton response use these + &Apache::lonxml::register('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup')); + push (@Apache::lonxml::namespace,'imageresponse'); + my $id = &Apache::response::start_response($parstack,$safeeval); + if ($target eq 'meta') { + $result=&Apache::response::meta_package_write('imageresponse'); + } + return $result; } -# ========================================================== End image response sub end_imageresponse { - &Apache::response::end_response; - pop @Apache::lonxml::namespace; - return ''; + &Apache::response::end_response; + pop @Apache::lonxml::namespace; + &Apache::lonxml::deregister('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup')); + return ''; } -%Apache::response::foilgroup = {}; -# ============================================================ Start foil group +%Apache::response::foilgroup=(); sub start_foilgroup { - %Apache::response::foilgroup = {}; - $Apache::imageresponse::conceptgroup = 0; - &Apache::response::setrandomnumber(); - return ''; + %Apache::response::foilgroup=(); + $Apache::imageresponse::conceptgroup=0; + &Apache::response::setrandomnumber(); + return ''; } -# =================================== Get foil counts (returns 2 element array) sub getfoilcounts { - my ($parstack,$safeeval) = @_; - my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2'); - # +1 since instructors will count from 1 - my $count = $#{ $Apache::response::foilgroup{'names'} }+1; - return ($count,$max); + my ($parstack,$safeeval)=@_; + + my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2'); + # +1 since instructors will count from 1 + my $count = $#{ $Apache::response::foilgroup{'names'} }+1; + if (&Apache::response::showallfoils()) { $max=$count; } + return ($count,$max); } -# ============================================== Which foils (returns an array) sub whichfoils { - my ($max) = @_; - if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; } - my @names = @{ $Apache::response::foilgroup{'names'} }; - my @whichopt =(); - while ((($#whichopt+1) < $max) && ($#names > -1)) { - &Apache::lonxml::debug("Have $#whichopt max is $max"); - my $aopt = int(rand($#names+1)); - &Apache::lonxml::debug("From $#names elms, picking $aopt"); - $aopt = splice(@names,$aopt,1); - &Apache::lonxml::debug("Picked $aopt"); - push (@whichopt,$aopt); - } - return @whichopt; + my ($max)=@_; + if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; } + my @names = @{ $Apache::response::foilgroup{'names'} }; + my @whichopt =(); + while ((($#whichopt+1) < $max) && ($#names > -1)) { + &Apache::lonxml::debug("Have $#whichopt max is $max"); + my $aopt; + if (&Apache::response::showallfoils()) { + $aopt=0; + } else { + $aopt=int(&Math::Random::random_uniform() * ($#names+1)); + } + &Apache::lonxml::debug("From $#names elms, picking $aopt"); + $aopt=splice(@names,$aopt,1); + &Apache::lonxml::debug("Picked $aopt"); + push (@whichopt,$aopt); + } + return @whichopt; } -# ======================================= Display foils (returns scalar string) sub displayfoils { - my (@whichopt) = @_; - my $result =''; - my $name; - my $temp = 1; - foreach $name (@whichopt) { - $result .= $Apache::response::foilgroup{"$name.text"}."
\n"; - my $image = $Apache::response::foilgroup{"$name.image"}; - if ($Apache::lonhomework::history{'resource.'. - $Apache::inputtags::part. - '.solved'} =~ /^correct/) { - $result .= "
\n"; - } else { - $result .= "
\n"; - } - $temp++; - } - return $result; + my (@whichopt) = @_; + my $result =''; + my $name; + my $temp=1; + foreach $name (@whichopt) { + $result.=$Apache::response::foilgroup{"$name.text"}."
\n"; + my $image=$Apache::response::foilgroup{"$name.image"}; + if ($Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"} =~ /^correct/ ) { + $result.="
\n"; + } else { + $result.="
\n"; + } + $temp++; + } + return $result; } -# ================================================================= Grade foils sub gradefoils { - my (@whichopt) = @_; - my $result = ''; - my $x; - my $y; - my $result; - my $id = $Apache::inputtags::response['-1']; - my $temp = 1; - foreach my $name (@whichopt) { - $x = $ENV{"form.HWVAL_$id:$temp.x"}; - $y = $ENV{"form.HWVAL_$id:$temp.y"}; - &Apache::lonxml::debug("Got a x of $x and a y of $y for $name"); - if (defined(@{ $Apache::response::foilgroup{"$name.area"} })) { - my @areas = @{ $Apache::response::foilgroup{"$name.area"} }; - my $grade = "INCORRECT"; - foreach my $area (@areas) { - &Apache::lonxml::debug("Area is $area for $name"); - $area =~ m/([a-z]*):/; - &Apache::lonxml::debug("Area of type $1"); - if ($1 eq 'rectangle') { - $grade = &grade_rectangle($area,$x,$y); - } else { - &Apache::lonxml::error("Unknown area style $area"); - } - &Apache::lonxml::debug("Area said $grade"); - if ($grade eq 'APPROX_ANS') { last; } - } - &Apache::lonxml::debug("Foil was $grade"); - if ($grade eq 'INCORRECT') { $result = 'INCORRECT'; } - if (($grade eq 'APPROX_ANS') && ($result ne 'APPROX_ANS')) { - $result = $grade; } - &Apache::lonxml::debug("Question is $result"); - $temp++; + my (@whichopt) = @_; + my $x; + my $y; + my $result; + my $id=$Apache::inputtags::response['-1']; + my $temp=1; + foreach my $name (@whichopt) { + $x=$ENV{"form.HWVAL_$id:$temp.x"}; + $y=$ENV{"form.HWVAL_$id:$temp.y"}; + &Apache::lonxml::debug("Got a x of $x and a y of $y for $name"); + if (defined(@{ $Apache::response::foilgroup{"$name.area"} })) { + my @areas = @{ $Apache::response::foilgroup{"$name.area"} }; + my $grade="INCORRECT"; + foreach my $area (@areas) { + &Apache::lonxml::debug("Area is $area for $name"); + $area =~ m/([a-z]*):/; + &Apache::lonxml::debug("Area of type $1"); + if ($1 eq 'rectangle') { + $grade=&grade_rectangle($area,$x,$y); + } else { + &Apache::lonxml::error("Unknown area style $area"); } - } - $Apache::lonhomework::results{'resource.'. - $Apache::inputtags::part. - ".$id.submission"} = "$x:$y"; - $Apache::lonhomework::results{'resource.'. - $Apache::inputtags::part. - ".$id.awarddetail"} = $result; - return ''; + &Apache::lonxml::debug("Area said $grade"); + if ($grade eq 'APPROX_ANS') { last; } + } + &Apache::lonxml::debug("Foil was $grade"); + if ($grade eq 'INCORRECT') { $result= 'INCORRECT'; } + if (($grade eq 'APPROX_ANS') && ($result ne 'APPROX_ANS')) { $result=$grade; } + &Apache::lonxml::debug("Question is $result"); + $temp++; + } + } + $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}="$x:$y"; + $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$result; + return ''; } -# ======================================= End foil group (return scalar string) sub end_foilgroup { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; - my $result = ''; - my @whichopt; - if ($target eq 'web' || $target eq 'grade') { - my ($count,$max) = &getfoilcounts($parstack,$safeeval); - if ($count > $max) { $count = $max } - &Apache::lonxml::debug("Count is $count from $max"); - @whichopt = &whichfoils($max); - } - if ($target eq 'web') { - $result = &displayfoils(@whichopt); - } - if ($target eq 'grade') { - if ( defined $ENV{'form.submitted'}) { - &gradefoils(@whichopt); - } + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result=''; + my @whichopt; + if ($target eq 'web' || $target eq 'grade') { + my ($count,$max) = &getfoilcounts($parstack,$safeeval); + if ($count>$max) { $count=$max } + &Apache::lonxml::debug("Count is $count from $max"); + @whichopt = &whichfoils($max); + } + if ($target eq 'web') { + $result=&displayfoils(@whichopt); + } + if ($target eq 'grade') { + if ( defined $ENV{'form.submitted'}) { + &gradefoils(@whichopt); } - return $result; + } + return $result; } -# ========================================================= Start concept group sub start_conceptgroup { - $Apache::imageresponse::conceptgroup = 1; - %Apache::response::conceptgroup = {}; - return ''; + $Apache::imageresponse::conceptgroup=1; + %Apache::response::conceptgroup=(); + return ''; } -# =========================================================== End concept group sub end_conceptgroup { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; - $Apache::imageresponse::conceptgroup = 0; - if ($target eq 'web' || $target eq 'grade') { - if (defined(@{ $Apache::response::conceptgroup{'names'} })) { - my @names = @{ $Apache::response::conceptgroup{'names'} }; - my $pick = int(rand($#names+1)); - my $name = $names[$pick]; - if (defined(@{ $Apache::response::conceptgroup{"$name.area"} })) { - push @{ $Apache::response::foilgroup{'names'} }, $name; - $Apache::response::foilgroup{"$name.text"} = - $Apache::response::conceptgroup{"$name.text"}; - $Apache::response::foilgroup{"$name.image"} = - $Apache::response::conceptgroup{"$name.image"}; - push(@{ $Apache::response::foilgroup{"$name.area"} }, - @{ $Apache::response::conceptgroup{"$name.area"} }); - my $concept = &Apache::lonxml::get_param('concept',$parstack, - $safeeval); - $Apache::response::foilgroup{"$name.concept"} = $concept; - &Apache::lonxml::debug("Selecting $name in $concept"); - } - } + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + $Apache::imageresponse::conceptgroup=0; + if ($target eq 'web' || $target eq 'grade') { + if (defined(@{ $Apache::response::conceptgroup{'names'} })) { + my @names = @{ $Apache::response::conceptgroup{'names'} }; + my $pick=int(&Math::Random::random_uniform() * ($#names+1)); + my $name=$names[$pick]; + if (defined(@{ $Apache::response::conceptgroup{"$name.area"} })) { + push @{ $Apache::response::foilgroup{'names'} }, $name; + $Apache::response::foilgroup{"$name.text"} = $Apache::response::conceptgroup{"$name.text"}; + $Apache::response::foilgroup{"$name.image"} = $Apache::response::conceptgroup{"$name.image"}; + push(@{ $Apache::response::foilgroup{"$name.area"} }, @{ $Apache::response::conceptgroup{"$name.area"} }); + my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval); + $Apache::response::foilgroup{"$name.concept"} = $concept; + &Apache::lonxml::debug("Selecting $name in $concept"); + } } - return ''; + } + return ''; } -$Apache::imageresponse::curname = ''; -# ================================================================== Start foil +$Apache::imageresponse::curname=''; sub start_foil { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; - if ($target eq 'web' || $target eq 'grade') { - my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval); - if ($name eq '') { $name=$Apache::lonxml::curdepth; } - if ( $Apache::imageresponse::conceptgroup ) { - push(@{ $Apache::response::conceptgroup{'names'} }, $name); - } else { - push(@{ $Apache::response::foilgroup{'names'} }, $name); - } - $Apache::imageresponse::curname=$name; - } - return ''; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + if ($target eq 'web' || $target eq 'grade') { + my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval); + if ($name eq '') { $name=$Apache::lonxml::curdepth; } + if ( $Apache::imageresponse::conceptgroup + && !&Apache::response::showallfoils()) { + push(@{ $Apache::response::conceptgroup{'names'} }, $name); + } else { + push(@{ $Apache::response::foilgroup{'names'} }, $name); + } + $Apache::imageresponse::curname=$name; + } + return ''; } -# ==================================================================== End foil sub end_foil { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; - return ''; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + return ''; } -# ================================================================== Start text sub start_text { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; - if ($target eq 'web') { &Apache::lonxml::startredirection; } - return ''; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + if ($target eq 'web') { &Apache::lonxml::startredirection; } + return ''; } -# ==================================================================== End text sub end_text { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; - if ($target eq 'web') { - my $name = $Apache::imageresponse::curname; - if ( $Apache::imageresponse::conceptgroup ) { - $Apache::response::conceptgroup{"$name.text"} = - &Apache::lonxml::endredirection; - } else { - $Apache::response::foilgroup{"$name.text"} = - &Apache::lonxml::endredirection; - } + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + if ($target eq 'web') { + my $name = $Apache::imageresponse::curname; + if ( $Apache::imageresponse::conceptgroup + && !&Apache::response::showallfoils() ) { + $Apache::response::conceptgroup{"$name.text"} = &Apache::lonxml::endredirection; + } else { + $Apache::response::foilgroup{"$name.text"} = &Apache::lonxml::endredirection; } - return ''; + } + return ''; } -# ================================================================= Start image sub start_image { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; - if ($target eq 'web') { &Apache::lonxml::startredirection; } - return ''; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + if ($target eq 'web' || $target eq 'tex') { &Apache::lonxml::startredirection; } + return ''; } -# =================================================================== End image sub end_image { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; - if ($target eq 'web') { - my $name = $Apache::imageresponse::curname; - my $image = &Apache::lonxml::endredirection; - &Apache::lonxml::debug("out is $image"); - if ( $Apache::imageresponse::conceptgroup ) { - $Apache::response::conceptgroup{"$name.image"} = $image; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $currentstring = ''; + if ($target eq 'web') { + my $name = $Apache::imageresponse::curname; + my $image = &Apache::lonxml::endredirection; + &Apache::lonxml::debug("out is $image"); + if ( $Apache::imageresponse::conceptgroup + && !&Apache::response::showallfoils()) { + $Apache::response::conceptgroup{"$name.image"} = $image; + } else { + $Apache::response::foilgroup{"$name.image"} = $image; + } + } elsif ($target eq 'tex') { + my $src = &Apache::lonxml::endredirection; + $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src); + my $width_param = ''; + my $height_param = ''; + my $scaling = .3; + my $image = Image::Magick->new; + my $current_figure = $image->Read($src); + $width_param = $image->Get('width') * $scaling;; + $height_param = $image->Get('height') * $scaling;; + undef $image; + my $epssrc = $src; + $epssrc =~ s/(\.gif|\.jpg)$/\.eps/i; + if (not -e $epssrc) { + my $localfile = $epssrc; + $localfile =~ s/.*(\/res)/$1/; + my $file; + my $path; + if ($localfile =~ m!(.*)/([^/]*)$!) { + $file = $2; + $path = $1.'/'; + } + my $signal_eps = 0; + my @content_directory = &Apache::lonnet::dirlist($path); + for (my $iy=0;$iy<=$#content_directory;$iy++) { + my @tempo_array = split(/&/,$content_directory[$iy]); + $content_directory[$iy] = $tempo_array[0]; + if ($file eq $tempo_array[0]) { + $signal_eps = 1; + last; + } + } + if ($signal_eps) { + my $eps_file = &Apache::lonnet::getfile($localfile); } else { - $Apache::response::foilgroup{"$name.image"} = $image; + $localfile = $src; + $localfile =~ s/.*(\/res)/$1/; + my $as = &Apache::lonnet::getfile($src); + } + } + my $file; + my $path; + if ($src =~ m!(.*)/([^/]*)$!) { + $file = $2; + $path = $1.'/'; + } + my $newsrc = $src; + $newsrc =~ s/(\.gif|\.jpg)$/\.eps/i; + $file=~s/(\.gif|\.jpg)$/\.eps/i; + #do we have any specified size of the picture? + my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval); + my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval); + my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval); + if ($TeXwidth ne '') { + $width_param = $TeXwidth; + } elsif ($TeXheight ne '') { + $width_param = $TeXheight/$height_param*$width_param; + } elsif ($width ne '') { + $width_param = $width*$scaling; + } + #where can we find the picture? + if (-e $newsrc) { + if ($path) { + $currentstring .= '\vskip 0 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} '; } + } else { + my $temp_file; + my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat"; + $temp_file = Apache::File->new('>>'.$filename); + print $temp_file "$src\n"; + $currentstring .= '\vskip 0 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} '; } - return ''; + } + return $currentstring; } -# ============================================================= Start rectangle sub start_rectangle { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; - if ($target eq 'web' || $target eq 'grade') { - &Apache::lonxml::startredirection; - } - return ''; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + if ($target eq 'web' || $target eq 'grade') { &Apache::lonxml::startredirection; } + return ''; } -# ====================================== Grade rectangle (return scalar string) sub grade_rectangle { - my ($spec,$x,$y) = @_; - &Apache::lonxml::debug("Spec is $spec"); - $spec =~ m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/; - my $x1 = $1; - my $y1 = $2; - my $x2 = $3; - my $y2 = $4; - &Apache::lonxml::debug("Point $x1,$y1,$x2,$y2"); - if ($x1 > $x2) { my $temp = $x1; $x1 = $x2; $x2 = $temp; } - if ($y1 > $y2) { my $temp = $y1; $y1 = $y2; $y2 = $temp; } - if ($x => $x1) { if ($x <= $x2) { if ($y => $y1) { - if ($y <= $y2) { return 'APPROX_ANS'; } } } } - return 'INCORRECT'; + my ($spec,$x,$y) = @_; + &Apache::lonxml::debug("Spec is $spec"); + $spec=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/; + my $x1=$1; + my $y1=$2; + my $x2=$3; + my $y2=$4; + &Apache::lonxml::debug("Point $x1,$y1,$x2,$y2"); + if ($x1 > $x2) { my $temp=$x1;$x1=$x2;$x2=$temp; } + if ($y1 > $y2) { my $temp=$y1;$y1=$y2;$y2=$temp; } + if (($x >= $x1) && ($x <= $x2) && ($y >= $y1) && ($y <= $y2)) { + return 'APPROX_ANS'; + } + return 'INCORRECT'; } -# =============================================================== End rectangle sub end_rectangle { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; - if ($target eq 'web' || $target eq 'grade') { - my $name = $Apache::imageresponse::curname; - my $area = &Apache::lonxml::endredirection; - &Apache::lonxml::debug("out is $area for $name"); - if ( $Apache::imageresponse::conceptgroup ) { - push @{ $Apache::response::conceptgroup{"$name.area"} }, - "rectangle:$area"; - } else { - push @{ $Apache::response::foilgroup{"$name.area"} }, - "rectangle:$area"; - } + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + if ($target eq 'web' || $target eq 'grade') { + my $name = $Apache::imageresponse::curname; + my $area = &Apache::lonxml::endredirection; + &Apache::lonxml::debug("out is $area for $name"); + if ( $Apache::imageresponse::conceptgroup + && !&Apache::response::showallfoils()) { + push @{ $Apache::response::conceptgroup{"$name.area"} },"rectangle:$area"; + } else { + push @{ $Apache::response::foilgroup{"$name.area"} },"rectangle:$area"; } - return ''; + } + return ''; } - 1; - __END__