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Diff for /loncom/homework/randomlabel.pm between versions 1.1 and 1.27

version 1.1, 2001/08/29 09:23:26 version 1.27, 2002/05/17 21:27:44
Line 1 Line 1
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
 # random labelling tool  # random labelling tool
 # 7/20/2001 Isaac Tsai  #
 # 8/10/2001 Isaac Tsai  # $Id$
   #
   # 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/
   #
   # 7/20/2001 Isaac Tsai, initial syntax
   # 8/10/2001 Isaac Tsai, 
   # 8/30/2001 Isaac Tsai, 
 # SYNTAX:  # SYNTAX:
 # <randomlabel bgimg=URL code=JAVACLASS codebase=URL width=12 height=45>  # <randomlabel bgimg="URL" width="12" height="45" texwidth="50">
 #    <labelgroup name=GroupOne type=img>  #    <labelgroup name="GroupOne" type="image">
 #      <location x=123 y=456 />  #      <location x="123" y="456" />
 #      <location x=321 y=654 />  #      <location x="321" y="654" />
 #      <location x=213 y=546 />  #      <location x="213" y="546" />
 #      <label>IMG-URL</label>  #      <label description="TEXT-1">IMG-URL</label>
 #      <label>IMG-URL</label>  #      <label description="TEXT-2">IMG-URL</label>
 #      <label>IMG-URL</label>  #      <label description="TEXT-3">IMG-URL</label>
 #    </labelgroup>  #    </labelgroup>
 #    <labelgroup name=GroupTwo type=text>  #    <labelgroup name="GroupTwo" type="text">
 #      <location x=12 y=45 />  #      <location x="12" y="45" />
 #      <location x=32 y=65 />  #      <location x="32" y="65" />
 #      <location x=21 y=54 />  #      <location x="21" y="54" />
 #      <label>TEXT</label>  #      <label>TEXT-1</label>
 #      <label>TEXT</label>  #      <label>TEXT-2</label>
 #      <label>TEXT</label>  #      <label>TEXT-3</label>
 #    </labelgroup>  #    </labelgroup>
 #   </randomlabel>  #   </randomlabel>
 #  ===========================================  #  ===========================================
 #    location (123,456): $GroupOne[1] = ...  #  side effect:
 #             (321,654): $GroupOne[2] = ...  #    location (123,456): $GroupOne[0] = 2  # images give out indexes
 #             (213,546): $GroupOne[3] = ...  #             (321,654): $GroupOne[1] = 1
 #    location (12,45)  : $GroupOne[1] = ...  #             (213,546): $GroupOne[2] = 0
 #             (321,654): $GroupOne[2] = ...  #    location (12,45)  : $GroupTwo[0] = "TEXT-3"
 #             (213,546): $GroupOne[3] = ...  #             (32,65)  : $GroupTwo[1] = "TEXT-1"
   #             (21,54)  : $GroupTwo[2] = "TEXT-2"
 #  ===========================================  #  ===========================================
 package Apache::randomlabel;  package Apache::randomlabel;
   use Apache::lonnet;
 use strict;  use strict;
   use Apache::edit;
   
 sub BEGIN {  BEGIN {
   &Apache::lonxml::register('Apache::randomlabel',('randomlabel','labelgroup','location','label'));    &Apache::lonxml::register('Apache::randomlabel',('randomlabel','labelgroup','location','label'));
 }  }
   
   sub check_int {
       # utility function to do error checking on a integer.
       my ($num,$default) = @_;
       $default = 100 if (! defined($default));
       $num =~ s/\s+//g;  # We dont need no stinkin white space!
       # If it is a real, just grab the integer part.
       ($num,undef) = split (/\./,$num) if ($num =~ /\./); 
       # set to default if what we have left doesn't match anything...
       $num = $default unless ($num =~/^\d+$/);
       return $num;
   }
   
 sub start_randomlabel {  sub start_randomlabel {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result='';    my $result='';
     push (@Apache::lonxml::extlinks, '/res/adm/includes/GLabel.class');
     push (@Apache::lonxml::namespace,'randomlabel');
   my $bgimg= &Apache::lonxml::get_param('bgimg',$parstack,$safeeval);    my $bgimg= &Apache::lonxml::get_param('bgimg',$parstack,$safeeval);
     if ( $bgimg !~ /^http:/ ) {
       push (@Apache::lonxml::extlinks,$bgimg);
       $bgimg=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$bgimg);
       if ($bgimg =~ /$Apache::lonnet::perlvar{'lonDocRoot'}/) {
         $bgimg=~s/$Apache::lonnet::perlvar{'lonDocRoot'}//;
       } elsif ($bgimg =~ m:^/home/.*/public_html:) {
         $bgimg =~ s:^/home/(.*)/public_html:/~$1:;
       }
       $bgimg="http://".$ENV{'SERVER_NAME'}.$bgimg;
     }
   my $code = &Apache::lonxml::get_param('code',$parstack,$safeeval);    my $code = &Apache::lonxml::get_param('code',$parstack,$safeeval);
   my $codebase = &Apache::lonxml::get_param('codebase',$parstack,$safeeval);    my $codebase = &Apache::lonxml::get_param('codebase',$parstack,$safeeval);
   my $w= &Apache::lonxml::get_param('width',$parstack,$safeeval);    my $w= &check_int(&Apache::lonxml::get_param('width',$parstack,$safeeval));
   my $h= &Apache::lonxml::get_param('height',$parstack,$safeeval);    my $h= &check_int(&Apache::lonxml::get_param('height',$parstack,$safeeval));
       my $texwidth= &Apache::lonxml::get_param('texwidth',$parstack,$safeeval);
   $result.="<applet code=$code codebase=$codebase width=\"$w\" height=\"$h\">";    if (!$code) { $code='GLabel.class'; }
   $result.="<param name=\"bgimg\" value=\"$bgimg\">";    if (!$codebase) { $codebase='/res/adm/includes/'; }
   if ($target eq 'edit') {    $Apache::randomlabel::tlabel_cnt=0;
   }    $Apache::randomlabel::ilabel_cnt=0;
   if ($target eq 'modified') {    if ($target eq 'web') {
       $result.="<applet code=\"$code\" codebase=\"$codebase\" width=\"$w\" height=\"$h\">\n";
       $result.="<param name=\"bgimg\" value=\"$bgimg\">\n";
     } elsif ($target eq 'tex') {
       $bgimg=~s/(.gif|.jpg)$/.eps/;
       $bgimg= &Apache::lonnet::filelocation($bgimg);
       $bgimg=~s/http:\/[^\/]*/\/home\/httpd\/html/;
       $bgimg=~s/\/$//;
       $result.='\vspace*{2mm}  \noindent \epsfxsize='.$texwidth.' mm \epsffile{'.
       $bgimg.'}\setlength{\unitlength}{1mm}  \begin{picture}(0,0)('.$texwidth.','.$texwidth*$h/$w.')'
     } elsif ($target eq 'edit') {
       $result.=&Apache::edit::tag_start($target,$token);
       $result.=&Apache::edit::text_arg('Image:','bgimg',$token,75).' ';
       $result.=&Apache::edit::browse('bgimg').' ';
       $result.=&Apache::edit::search('bgimg').'<br />'.
           &Apache::edit::text_arg('Width(pixel):' ,'width'   ,$token,6).
           &Apache::edit::text_arg('Height(pixel):','height'  ,$token,6).
           &Apache::edit::text_arg('TeXWidth(mm):' ,'texwidth',$token,6).
           &Apache::edit::end_row().&Apache::edit::start_spanning_row();     
     } elsif ($target eq 'modified') {
       my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
    'bgimg','width','height',
    'texwidth');
       if ($constructtag) {
         $result = &Apache::edit::rebuild_tag($token);
         $result.=&Apache::edit::handle_insert();
       }
   }    }
   return $result;    return $result;
 }  }
   
 sub end_randomlabel {  sub end_randomlabel {
   return '</applet><BR />';    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result='';
     my $count;
     pop @Apache::lonxml::namespace;
     if ($target eq 'web') {
       $count = $Apache::randomlabel::tlabel_cnt;
       if( $count != 0) { $result.= "<param name=\"COUNT\" value=\"$count\">\n"; }
       $count = $Apache::randomlabel::ilabel_cnt;
       if( $count != 0) { $result.= "<param name=\"ICOUNT\" value=\"$count\">\n"; }
       $result .= "</applet>\n<BR />";
     } elsif ($target eq 'tex') {
       $result='\end{picture}\\\\';
     } elsif ($target eq 'edit') {
       $result.=&Apache::edit::end_table;
     }
     return $result;
 }  }
   
 sub start_labelgroup {  sub start_labelgroup {
Line 63  sub start_labelgroup { Line 157  sub start_labelgroup {
   my $result='';    my $result='';
   my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);    my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
   my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);    my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
   $Apache::randomlabel::groupname=$name;    $type =~tr/A-Z/a-z/;
   @Apache::randomlabel::xcoord = ();    if ($target eq 'web' || $target eq 'tex' || 
   @Apache::randomlabel::ycoord = ();        $target eq 'grade' || $target eq 'answer') {
   @Apache::randomlabel::label_arr  = ();      $Apache::randomlabel::groupname=$name;
   return '';      $Apache::randomlabel::type=$type;
       @Apache::randomlabel::xcoord = ();
       @Apache::randomlabel::ycoord = ();
       @Apache::randomlabel::value = ();
       @Apache::randomlabel::label_arr  = ();
       @Apache::randomlabel::decription  = ();
     } elsif ($target eq 'edit') {
       $result.=&Apache::edit::tag_start($target,$token);
       $result.=&Apache::edit::text_arg('Name:','name',$token).
         &Apache::edit::select_arg('Type:','type',['text','image'],$token).
     &Apache::edit::end_row().&Apache::edit::start_spanning_row();
     } elsif ($target eq 'modified') {
       my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
    'name','type');
       if ($constructtag) {
         $result = &Apache::edit::rebuild_tag($token);
         $result.=&Apache::edit::handle_insert();
       }
     }
     return $result;
   }
   
   sub add_vars {
     my ($name,$order,$label,$labelorder,$value,$safeeval) = @_;
     my $code = '${'.$name."}{'".($order+1)."'}='".$label."';";
     my $out=Apache::run::run($code,$safeeval);
     if ($value) {
       $code = '${'.$name."}{'value_".($order+1)."'}='".$value."';";
       $out=Apache::run::run($code,$safeeval);
       $code = '${'.$name."}{'labelvalue_".($labelorder+1)."'}='".$value."';";
       $out=Apache::run::run($code,$safeeval);
     }
     $code = '${'.$name."}{'numlocations'}='".($order+1)."';";
     $out=Apache::run::run($code,$safeeval);
 }  }
   
 # begin to assign labels to locations  # begin to assign labels to locations
 sub end_labelgroup {  sub end_labelgroup {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $gname = $Apache::randomlabel::groupname;    my $gname = $Apache::randomlabel::groupname;
   my $count = $#Apache::randomlabel::label_arr + 1;    my $type  = $Apache::randomlabel::type;
   my $code;    my $result='';
   my $out;    if ($target eq 'web' || $target eq 'answer' || $target eq 'grade') {
   my $label;      my @idx_arr = (0 .. $#Apache::randomlabel::label_arr);
   my $x;      &Apache::structuretags::shuffle(\@idx_arr);
   my $y;      for(0 .. $#Apache::randomlabel::label_arr) {
   my $text= "<param name=\"count\" value=\"$count\">";        my $str;
         my $xstr;
   my @idx_arr = (0 .. $#Apache::randomlabel::label_arr);        my $ystr;
   &Apache::structuretags::shuffle(\@idx_arr);        my $label = "$Apache::randomlabel::label_arr[ $idx_arr[$_] ]";
   for(0 .. $#Apache::randomlabel::label_arr) {        my $x = $Apache::randomlabel::xcoord[$_];
     $label = "$Apache::randomlabel::label_arr[ $idx_arr[$_] ]";        my $y = $Apache::randomlabel::ycoord[$_];
     $x = pop @Apache::randomlabel::xcoord;        my $value = $Apache::randomlabel::value[$_];
     $y = pop @Apache::randomlabel::ycoord;        if( $type eq 'text') {
     $text .= "<param name=\"LB". $_ . "\" value=\"$label\">";   &add_vars($gname,$_,$label,$idx_arr[$_],$value,$safeeval);
     $text .= "<param name=\"X" . $_ . "\" value=\"$x\"> ";   $str = 'LB'.$Apache::randomlabel::tlabel_cnt;
     $text .= "<param name=\"Y" . $_ . "\" value=\"$y\">";   $xstr = 'X'.$Apache::randomlabel::tlabel_cnt;
     $code = "push(\@$gname, $label);" ;   $ystr = 'Y'.$Apache::randomlabel::tlabel_cnt;
     # print("CODE=$code");   $Apache::randomlabel::tlabel_cnt += 1;
     # $out=Apache::run::run($code,$safeeval,$$parstack[$#$parstack]);        } elsif ( $type eq 'image') {
     $out=Apache::run::run($code,$safeeval);   &add_vars($gname,$_,$idx_arr[$_],$idx_arr[$_],$value,$safeeval);
    $str = 'IMG'.$Apache::randomlabel::ilabel_cnt;
    $xstr = 'IX'.$Apache::randomlabel::ilabel_cnt;
    $ystr = 'IY'.$Apache::randomlabel::ilabel_cnt;
    $Apache::randomlabel::ilabel_cnt += 1;
         } else {
    &Apache::lonxml::error('Unknown type of label :'.$type.':');
         }
         if ($target eq 'web') {
    $result .= '<param name="' . $str  . '" value="'.$label.'">';
    $result .= '<param name="' . $xstr . '" value="'.$x.'">';
    $result .= '<param name="' . $ystr . '" value="'.$y.'">'."\n";
         }
       }
     } elsif ($target eq 'tex') {
       my $WX1=0; #  Web x-coord. of upper left corner (ULC)
       my $WY1=0; #  Web y-coord. of (ULC)
       my $wwidth=&Apache::lonxml::get_param('width',$parstack,$safeeval,-2);
       my $wheight=&Apache::lonxml::get_param('height',$parstack,$safeeval,-2);
       my $texwidth=&Apache::lonxml::get_param('texwidth',$parstack,$safeeval,-2);
       my $TX1=0;
       my $TY1=$texwidth*($wheight/$wwidth);
       my $TX2=$texwidth;
       my $TY2=0;
   
   
       my $slopex=($wwidth-$WX1)/($TX2-$TX1);
       my $slopey=($wheight-$WY1)/($TY2-($TY1-1.0));
       my $cstx=$wwidth-$slopex*($TX2);
       my $csty=$wheight-$slopey*($TY2);
   
       my @idx_arr = (0 .. $#Apache::randomlabel::label_arr);
       &Apache::structuretags::shuffle(\@idx_arr);
   
       &Apache::lonxml::debug("Array is:".$#Apache::randomlabel::label_arr.":");
       for(my $i=0;$i <= $#Apache::randomlabel::label_arr; $i++) {
         my $label = "$Apache::randomlabel::label_arr[ $idx_arr[$i] ]";
         my $x = $Apache::randomlabel::xcoord[$i];
         my $y = $Apache::randomlabel::ycoord[$i];
         my $value = $Apache::randomlabel::value[$i];
   #      my $tcX=$x*($texwidth/$wwidth) - $texwidth;
         my $tcX=($x-10)*($texwidth/$wwidth);
   #      my $tcY=$TY1-$y*($TY1/$wheight)-2;
         my $ratio=($wwidth > 0 ? $wheight/$wwidth : 1 );
         my $tcY=$TY1-$y*($TY1/$wheight)+$texwidth*$ratio;
         $tcX=sprintf('%.2f',$tcX);
         $tcY=sprintf('%.2f',$tcY);
         $result.='\put('.$tcX.','.$tcY.'){\normalsize \bf '.$label.'}'."\n";
         if( $type eq 'text') {
    &add_vars($gname,$i,$label,$idx_arr[$i],$value,$safeeval);
         } elsif ( $type eq 'image') {
    &add_vars($gname,$i,$idx_arr[$i],$idx_arr[$i],$value,$safeeval);
         } else {
    &Apache::lonxml::error('Unknown type of label :'.$type.':');
         }
       }
     } elsif ($target eq 'edit') {
       $result.=&Apache::edit::end_table;
   }    }
       return $result;
   return $text;  
 }  }
   
   # <location x="123" y="456" value="some value"/>
 sub start_location {  sub start_location {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $x= &Apache::lonxml::get_param('x',$parstack,$safeeval);    my $x= &check_int(&Apache::lonxml::get_param('x',$parstack,$safeeval),50);
   my $y= &Apache::lonxml::get_param('y',$parstack,$safeeval);    my $y= &check_int(&Apache::lonxml::get_param('y',$parstack,$safeeval),50);
       my $value= &Apache::lonxml::get_param('value',$parstack,$safeeval);
     my $result='';
   push(@Apache::randomlabel::xcoord,$x);    push(@Apache::randomlabel::xcoord,$x);
   push(@Apache::randomlabel::ycoord,$y);     push(@Apache::randomlabel::ycoord,$y);
   return '';    push(@Apache::randomlabel::value,$value);
     if ($target eq 'edit') {
       $result.=&Apache::edit::tag_start($target,$token);
       $result.=&Apache::edit::text_arg('X:','x',$token,4).
         &Apache::edit::text_arg('Y:','y',$token,4).
    &Apache::edit::text_arg('Value:','value',$token).
     &Apache::edit::end_row();
       $result.=&Apache::edit::end_table;
     } elsif ($target eq 'modified') {
       my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
    'x','y','value');
       if ($constructtag) {
         $result = &Apache::edit::rebuild_tag($token);
         $result.=&Apache::edit::handle_insert();
       }
     }
     return $result;
 }  }
   
 sub end_location {  sub end_location {
   return '';    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my @result;
     if ($target eq 'edit') { @result=('','no') }
     return @result;
 }  }
   
   # <label>$var_abc</label>
 sub start_label {  sub start_label {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $ltext=&Apache::lonxml::get_all_text("/label",$$parser[$#$parser]);    my $result='';
     my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
   push(@Apache::randomlabel::label_arr,$ltext);    if ($target eq 'web' || $target eq 'tex' || 
   return '';        $target eq 'grade' || $target eq 'answer') {
       my $ltext=&Apache::lonxml::get_all_text("/label",$$parser[-1]);
       $ltext=&Apache::run::evaluate($ltext,$safeeval,$$parstack[-1]);
       if ($type eq 'image') {
         &Apache::lonxml::debug("Turning $ltext and $Apache::lonxml::pwd[-1]");
         $ltext="http://$ENV{'SERVER_NAME'}".&Apache::lonnet::hreflocation($Apache::lonxml::pwd[-1],
      $ltext);
         &Apache::lonxml::debug("into $ltext");
         my $description = &Apache::lonxml::get_param('description',
      $parstack,$safeeval);
         push(@Apache::randomlabel::description,$description);
       }
       push(@Apache::randomlabel::label_arr,$ltext);
     } elsif ($target eq 'edit') {
       $result.=&Apache::edit::tag_start($target,$token,"$type Label");
       my $text=&Apache::lonxml::get_all_text("/label",$$parser[-1]);
       if ($type eq 'image') {
         $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
         $result.=&Apache::edit::text_arg('Description:','description',$token);
       }
       if ($type eq 'text') { $result.="Label Text:"; }
       if ($type eq 'image') { $result.="Path to image:"; }
       $result.=&Apache::edit::editline('',$text,'',20).
         &Apache::edit::end_table();
     } elsif ($target eq 'modified') {
       my $text=$$parser[-1]->get_text("/label");
       $result = '<label>';
       if ($type eq 'image') {
         my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
      'description');
         if ($constructtag) {
    $result = &Apache::edit::rebuild_tag($token);
         } else {
    $result = $token->[4];
         }
       }
       $result.=&Apache::edit::modifiedfield($token);
     }
     return $result;
 }  }
   
 sub end_label {  sub end_label {
   return '';    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my @result;
     if ($target eq 'edit') { @result=('','no') }
     return @result;
 }  }
   
   
Removed from v.1.1  
changed lines
  Added in v.1.27

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