# The LearningOnline Network with CAPA
# iimage click response style
#FIXME assumes multiple possbile submissions but only one is possible currently
package Apache::imageresponse;
use strict;
sub BEGIN {
&Apache::lonxml::register('Apache::imageresponse',('imageresponse'));
}
sub start_imageresponse {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
#when in a radiobutton response use these
&Apache::lonxml::register('Apache::imageresponse',('foilgroup','foil','text','image','rectangle'));
my $id = &Apache::response::start_response($parstack,$safeeval);
return '';
}
sub end_imageresponse {
&Apache::response::end_response;
return '';
}
%Apache::response::foilgroup={};
sub start_foilgroup {
%Apache::response::foilgroup={};
$Apache::optionresponse::conceptgroup=0;
&Apache::response::setrandomnumber();
return '';
}
sub getfoilcounts {
my ($parstack,$safeeval)=@_;
my $rrargs ='';
if ( $#$parstack > 0 ) { $rrargs=$$parstack['-2']; }
my $max = &Apache::run::run("{$rrargs;".'return $max}',$safeeval);
my $count = $#{ $Apache::response::foilgroup{'names'} };
return ($count,$max);
}
sub whichfoils {
my ($max)=@_;
my @names = @{ $Apache::response::foilgroup{'names'} };
my @whichopt =();
while ((($#whichopt) < $max) && ($#names > -1)) {
my $aopt=int rand $#names;
&Apache::lonxml::debug("From $#names elms, picking $aopt");
$aopt=splice(@names,$aopt,1);
&Apache::lonxml::debug("Picked $aopt");
push (@whichopt,$aopt);
}
return @whichopt;
}
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;
}
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");
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++;
}
$Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}="$x:$y";
$Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$result;
return '';
}
sub end_foilgroup {
my ($target,$token,$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;
}
sub start_conceptgroup {
$Apache::optionresponse::conceptgroup=1;
%Apache::response::conceptgroup={};
return '';
}
sub end_conceptgroup {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
$Apache::optionresponse::conceptgroup=0;
if ($target eq 'web' || $target eq 'grade') {
my @names = @{ $Apache::response::conceptgroup{'names'} };
my $pick=int rand $#names+1;
my $name=$names[$pick];
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 $args;
if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
my $concept = &Apache::run::run("{$args;".'return $concept}',$safeeval);
$Apache::response::foilgroup{"$name.concept"} = $concept;
&Apache::lonxml::debug("Selecting $name in $concept");
}
return '';
}
$Apache::imageresponse::curname='';
sub start_foil {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
if ($target eq 'web' || $target eq 'grade') {
my $args ='';
if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);
if ($name eq '') { $name=$Apache::lonxml::curdepth; }
push(@{ $Apache::response::foilgroup{'names'} }, $name);
$Apache::imageresponse::curname=$name;
}
return '';
}
sub end_foil {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
return '';
}
sub start_text {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
if ($target eq 'web') { &Apache::lonxml::startredirection; }
return '';
}
sub end_text {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
if ($target eq 'web') {
my $name = $Apache::imageresponse::curname;
$Apache::response::foilgroup{"$name.text"} = &Apache::lonxml::endredirection;
}
return '';
}
sub start_image {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
if ($target eq 'web') { &Apache::lonxml::startredirection; }
return '';
}
sub end_image {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
if ($target eq 'web') {
my $name = $Apache::imageresponse::curname;
my $image = &Apache::lonxml::endredirection;
&Apache::lonxml::debug("out is $image");
$Apache::response::foilgroup{"$name.image"} = $image;
}
return '';
}
sub start_rectangle {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
if ($target eq 'web' || $target eq 'grade') { &Apache::lonxml::startredirection; }
return '';
}
sub grade_rectangle {
my ($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 <= $y2) { return 'APPROX_ANS'; } } } }
return 'INCORRECT';
}
sub end_rectangle {
my ($target,$token,$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");
push @{ $Apache::response::foilgroup{"$name.area"} },"rectangle:$area";
}
return '';
}
1;
__END__