version 1.39, 2003/10/30 20:52:54
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version 1.41, 2003/11/11 00:25:24
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Line 29
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Line 29
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#currently |
#currently |
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package Apache::imageresponse; |
package Apache::imageresponse; |
use Apache::randomlylabel; |
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use strict; |
use strict; |
use Image::Magick; |
use Image::Magick; |
use GD; |
use Apache::randomlylabel; |
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use Apache::Constants qw(:common :http); |
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BEGIN { |
BEGIN { |
&Apache::lonxml::register('Apache::imageresponse',('imageresponse')); |
&Apache::lonxml::register('Apache::imageresponse',('imageresponse')); |
Line 103 sub whichfoils {
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Line 103 sub whichfoils {
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return @whichopt; |
return @whichopt; |
} |
} |
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sub prep_image { |
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my ($image)=@_; |
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my $part=$Apache::inputtags::part; |
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my $respid=$Apache::inputtags::response['-1']; |
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my $id=&Apache::loncommon::get_cgi_id(); |
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my %x; |
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$x{"cgi.$id.BGIMG"}=$image; |
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my ($x,$y)=split(/:/,$Apache::lonhomework::history{"resource.$part.$respid.submission"}); |
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#draws 2 xs on the image at the clicked location |
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#one in white and then one in red on top of the one in white |
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if (defined($x) && defined($y)) { |
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$x{"cgi.$id.LINECOUNT"}=4; |
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my $length = 6; |
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my $width = 1; |
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my $extrawidth = 2; |
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$x{"cgi.$id.LINE0"}= |
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join(':',(($x-$length),($y-$length),($x+$length),($y+$length), |
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"FFFFFF",($width+$extrawidth))); |
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$x{"cgi.$id.LINE1"}= |
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join(':',(($x-$length),($y+$length),($x+$length),($y-$length), |
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"FFFFFF",($width+$extrawidth))); |
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$x{"cgi.$id.LINE2"}= |
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join(':',(($x-$length),($y-$length),($x+$length),($y+$length), |
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"FF0000",($width))); |
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$x{"cgi.$id.LINE3"}= |
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join(':',(($x-$length),($y+$length),($x+$length),($y-$length), |
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"FF0000",($width))); |
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} |
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&Apache::lonnet::appenv(%x); |
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return $id; |
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} |
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sub displayfoils { |
sub displayfoils { |
my ($target,@whichopt) = @_; |
my ($target,@whichopt) = @_; |
my $result =''; |
my $result =''; |
Line 114 sub displayfoils {
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Line 146 sub displayfoils {
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if ($target eq 'tex') {$result.="\\vskip 0 mm \n";} else {$result.="<br />\n";} |
if ($target eq 'tex') {$result.="\\vskip 0 mm \n";} else {$result.="<br />\n";} |
my $image=$Apache::response::foilgroup{"$name.image"}; |
my $image=$Apache::response::foilgroup{"$name.image"}; |
&Apache::lonxml::debug("image is $image"); |
&Apache::lonxml::debug("image is $image"); |
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if ( $target eq 'web' && $image !~ /^http:/ ) { |
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$image=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$image); |
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if (&Apache::lonnet::repcopy($image) ne OK) { |
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$image='/home/httpd/html/adm/lonKaputt/lonlogo_broken.gif'; |
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} |
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} |
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&Apache::lonxml::debug("image is $image"); |
if ( &Apache::response::show_answer() ) { |
if ( &Apache::response::show_answer() ) { |
if ($target eq 'tex') { |
if ($target eq 'tex') { |
$result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n"; |
$result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n"; |
} else { |
} else { |
$result.="<img src=\"$image\"/> <br />\n"; |
my $token=&prep_image($image); |
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$result.="<img src=\"/adm/randomlabel.png?token=$token\" /><br />\n"; |
} |
} |
} else { |
} else { |
if ($target eq 'tex') { |
if ($target eq 'tex') { |
$result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n"; |
$result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n"; |
} else { |
} else { |
$result.="<input type=\"image\" name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\" src=\"$image\"/> <br />\n"; |
my $id=$Apache::inputtags::response['-1']; |
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my $token=&prep_image($image); |
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my $temp=1; |
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$result.="<input type=\"image\" name=\"HWVAL_$id:$temp\" ". |
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"src=\"/adm/randomlabel.png?token=$token\" /><br />\n"; |
} |
} |
} |
} |
$temp++; |
$temp++; |
Line 315 sub end_image {
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Line 359 sub end_image {
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if ($target eq 'web') { |
if ($target eq 'web') { |
my $image = &Apache::lonxml::endredirection; |
my $image = &Apache::lonxml::endredirection; |
&Apache::lonxml::debug("original image is $image"); |
&Apache::lonxml::debug("original image is $image"); |
my $id=$Apache::inputtags::response['-1']; |
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my $temp=1; |
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my $x=$ENV{"form.HWVAL_$id:$temp.x"}; |
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my $y=$ENV{"form.HWVAL_$id:$temp.y"}; |
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if (defined ($x) && defined ($y)) { |
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&Apache::lonxml::debug("x and y defined as $x,$y"); |
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my $currentImage = &Apache::randomlylabel::get_image('/home/httpd/html'.$image,1); |
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if (! defined($currentImage)) { |
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&Apache::lonnet::logthis('Unable to create image object for '.$image); |
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return ''; |
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} |
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my $red; |
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if (!($red = $currentImage->colorResolve(255,0,0))) { |
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$red = $currentImage->colorClosestHWB(255,0,0); |
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} |
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my $length = 6; |
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$currentImage->line($x-$length,$y-$length,$x+$length,$y+$length,$red); |
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$currentImage->line($x-$length,$y+$length,$x+$length,$y-$length,$red); |
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my ($nameWOext) = ($image =~ /^.*\/(.*)\..*$/); |
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&Apache::lonxml::debug("graph name $nameWOext"); |
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my $webImageName = "/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_". |
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$nameWOext.'.png'; #needs to be more random or specific |
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my $newImageName = '/home/httpd'.$webImageName; |
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my $imgfh = Apache::File->new('>'.$newImageName); |
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print $imgfh $currentImage->png; |
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$image = $webImageName; |
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} |
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&Apache::lonxml::debug("out image is $image"); |
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if ( $Apache::imageresponse::conceptgroup |
if ( $Apache::imageresponse::conceptgroup |
&& !&Apache::response::showallfoils()) { |
&& !&Apache::response::showallfoils()) { |
$Apache::response::conceptgroup{"$name.image"} = $image; |
$Apache::response::conceptgroup{"$name.image"} = $image; |