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- Fixes BUG#947
- labels and images are placed correctly now.

    1: #!/usr/bin/perl
    2: # The LearningOnline Network with CAPA
    3: # randomlabel.png: composite together text and images into 1 image
    4: #
    5: # $Id: randomlylabel.pm,v 1.2 2002/11/13 23:52:41 albertel Exp $
    6: #
    7: # Copyright Michigan State University Board of Trustees
    8: #
    9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   10: #
   11: # LON-CAPA is free software; you can redistribute it and/or modify
   12: # it under the terms of the GNU General Public License as published by
   13: # the Free Software Foundation; either version 2 of the License, or
   14: # (at your option) any later version.
   15: #
   16: # LON-CAPA is distributed in the hope that it will be useful,
   17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   19: # GNU General Public License for more details.
   20: #
   21: # You should have received a copy of the GNU General Public License
   22: # along with LON-CAPA; if not, write to the Free Software
   23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   24: #
   25: # /home/httpd/html/adm/gpl.txt
   26: #
   27: # http://www.lon-capa.org/
   28: #
   29: ###
   30: 
   31: package Apache::randomlylabel;
   32: 
   33: use strict;
   34: use Image::Magick;
   35: use Apache::Constants qw(:common);
   36: use Apache::loncommon();
   37: 
   38: sub handler {
   39:     my $r = shift;
   40:     $r->content_type('image/png');
   41:     my (undef,$token) = split(/=/,$ENV{'QUERY_STRING'});
   42:     &Apache::loncommon::get_unprocessed_cgi(
   43:                &Apache::lonnet::unescape($ENV{'imagerequest.'.$token}));
   44:     &Apache::lonnet::delenv('imagerequest\.'.$token);
   45:     my $image = Image::Magick->new;
   46:     my $current_figure = $image->Read('filename'=>$ENV{"form.BGIMG"});
   47:     #binmode(STDOUT);
   48:     for(my $i=0;$i<$ENV{"form.ICOUNT"};$i++) {
   49: 	my $subimage = Image::Magick->new;
   50: 	$subimage->Read('filename' => $ENV{"form.IMG$i"});
   51: 	$image->Composite('x' => $ENV{"form.X$i"},'y' => $ENV{"form.Y$i"},
   52: 			 'compose'=> 'Over', 'image' => $subimage,
   53: 			 'gravity' => 'NorthWest');
   54: 	undef($subimage);
   55:     }
   56:     for(my $i=0;$i<$ENV{"form.COUNT"};$i++) {
   57: 	$image->Annotate('text' => $ENV{"form.LB$i"},'x' => $ENV{"form.X$i"},
   58: 			 'y' => $ENV{"form.Y$i"}, 'font' => 'Times-Bold',
   59: 			 'pointsize' => 18, 'antialias' => 'true',
   60: 			 'gravity' => 'NorthWest');
   61:     }
   62:     $image->Set('magick'=>'png');
   63:     my @blobs=$image->ImageToBlob();
   64:     $r->print($blobs[0]);
   65:     return OK;
   66: }
   67: 
   68: 1;