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Diff for /loncom/homework/randomlabel.pm between versions 1.53 and 1.67

version 1.53, 2003/11/11 00:25:24 version 1.67, 2005/04/07 06:56:22
Line 25 Line 25
 #  #
 # http://www.lon-capa.org/  # 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" width="12" height="45" texwidth="50">  # <randomlabel bgimg="URL" width="12" height="45" texwidth="50">
 #    <labelgroup name="GroupOne" type="image">  #    <labelgroup name="GroupOne" type="image">
Line 67  my %args; Line 64  my %args;
 my $cgi_id;  my $cgi_id;
   
 BEGIN {  BEGIN {
     &Apache::lonxml::register('Apache::randomlabel',('randomlabel','labelgroup','location','label'));      &Apache::lonxml::register('Apache::randomlabel',('randomlabel','labelgroup','location','label','bgimg'));
 }  }
   
 sub check_int {  sub check_int {
Line 82  sub check_int { Line 79  sub check_int {
     return $num;      return $num;
 }  }
   
   my ($height_param,$width_param);
 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 $result='';
     push (@Apache::lonxml::namespace,'randomlabel');      push (@Apache::lonxml::namespace,'randomlabel');
       ($height_param,$width_param)=(0,0);
     my $bgimg= &Apache::lonxml::get_param('bgimg',$parstack,$safeeval);      my $bgimg= &Apache::lonxml::get_param('bgimg',$parstack,$safeeval);
     if ( $bgimg !~ /^http:/ ) {      if ( defined($bgimg) && $bgimg !~ /^http:/ ) {
  $bgimg=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$bgimg);   $bgimg=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$bgimg);
  if (&Apache::lonnet::repcopy($bgimg) ne OK) {   if (&Apache::lonnet::repcopy($bgimg) ne 'ok') {
     $bgimg='/home/httpd/html/adm/lonKaputt/lonlogo_broken.gif';      $bgimg='/home/httpd/html/adm/lonKaputt/lonlogo_broken.gif';
  }   }
     }      }
     my $w= &check_int(&Apache::lonxml::get_param('width',$parstack,$safeeval));      $Apache::randomlabel::obj_cnt=0;
     my $h= &check_int(&Apache::lonxml::get_param('height',$parstack,$safeeval));  
     my $texwidth=&adjust_textwidth(&Apache::lonxml::get_param('texwidth',$parstack,$safeeval,undef,1));  
     if (!$texwidth) { $texwidth=90; }  
     $Apache::randomlabel::tlabel_cnt=0;  
     $Apache::randomlabel::ilabel_cnt=0;  
     if ($target eq 'web') {      if ($target eq 'web') {
  $cgi_id=&Apache::loncommon::get_cgi_id();   $cgi_id=&Apache::loncommon::get_cgi_id();
  %args=();   %args=();
  $args{"cgi.$cgi_id.BGIMG"}=&Apache::lonnet::escape($bgimg);   $args{"cgi.$cgi_id.BGIMG"}=&Apache::lonnet::escape($bgimg);
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex' && defined($bgimg)) {
  my $newbgimg = $bgimg;   $result.=&make_eps_image($bgimg,$parstack,$safeeval);
  $bgimg=~s/\.(gif|jpg|png|jpeg)$/\.eps/i;  
  $bgimg= &Apache::lonnet::filelocation($bgimg);  
  $bgimg=~s/http:\/[^\/]*/\/home\/httpd\/html/;  
  $bgimg=~s/\/$//;  
  #if no eps file try to replicate it  
  if (not-e $bgimg) {  
     if (&Apache::lonnet::repcopy($bgimg) ne OK ) {  
  #if replication failed try to find ps file  
  $bgimg=~s/\.eps$/\.ps/;  
  #if no ps file try to replicate it  
  if (not -e $bgimg &&  
     &Apache::lonnet::repcopy($bgimg) ne OK) {  
                     #if replication failed try to produce eps file dynamically  
     $bgimg=~s/\.ps$/\.eps/;  
     my $temp_file;  
     my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";  
     $temp_file = Apache::File->new('>>'.$filename);  
     $newbgimg =~ s/(.*)\/res\//\/home\/httpd\/html\/res\//;  
     print $temp_file "$newbgimg\n";  
     $bgimg=~s/\/home\/httpd\/html\/res/\/home\/httpd\/prtspool/; }  
     }  
  }  
  $bgimg=~s/\/$//;  
  my $dirtywidth=$texwidth+5;  
  $result.='\vspace*{2mm}\noindent \parbox{'.$dirtywidth.' mm}{  \noindent \epsfxsize='.  
     $texwidth.' mm \epsffile{'.$bgimg.'}\setlength{\unitlength}{1mm}  \begin{picture}('.  
     $texwidth.','.$texwidth*$h/$w.')(0,-'.$texwidth*$h/$w.')';  
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $result.=&Apache::edit::tag_start($target,$token);   $result.=&Apache::edit::tag_start($target,$token);
  $Apache::edit::bgimgsrc=   $Apache::edit::bgimgsrc=
Line 162  sub end_randomlabel { Line 129  sub end_randomlabel {
     my $count;      my $count;
     pop @Apache::lonxml::namespace;      pop @Apache::lonxml::namespace;
     if ($target eq 'web') {      if ($target eq 'web') {
  $count = $Apache::randomlabel::tlabel_cnt;   $count = $Apache::randomlabel::obj_cnt;
  if( $count != 0) { $args{"cgi.$cgi_id.COUNT"}=$count; }   if( $count != 0) { $args{"cgi.$cgi_id.OBJCOUNT"}=$count; }
  $count = $Apache::randomlabel::ilabel_cnt;  
  if( $count != 0) { $args{"cgi.$cgi_id.ICOUNT"}=$count; }  
  $result.='<img src="/adm/randomlabel.png?token='.$cgi_id.'" /><br />'."\n";   $result.='<img src="/adm/randomlabel.png?token='.$cgi_id.'" /><br />'."\n";
  &Apache::lonnet::appenv(%args);   &Apache::lonnet::appenv(%args);
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $result='\end{picture}\\\\';   $result='\end{picture}\\\\';
  my $height=&Apache::lonxml::get_param('height',$parstack,$safeeval);   $result.= ' \vskip -'.$height_param.' mm }  \\\\ ';
  my $width=&Apache::lonxml::get_param('width',$parstack,$safeeval);  
  my $texwidth=&adjust_textwidth(&Apache::lonxml::get_param('texwidth',$parstack,$safeeval,undef,1));  
         if (!$texwidth) { $texwidth=90; }  
  my $howtoskipback = $texwidth*$height/$width;  
  $result.= ' \vskip -'.$howtoskipback.' mm }  \\\\ ';  
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $result.=&Apache::edit::end_table;   $result.=&Apache::edit::end_table;
     }      }
     return $result;      return $result;
 }  }
   
 sub adjust_textwidth {  sub start_bgimg {
     my $texwidth=shift;       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $pagewidth=$ENV{'form.textwidth'};      my $result='';
     $pagewidth=~s/\s*mm\s*$//;      if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') { 
     if ($texwidth>$pagewidth) {$texwidth=$pagewidth;}   &Apache::lonxml::startredirection(); 
     return $texwidth;      }
       return $result;
   }
   
   sub end_bgimg {
       my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result='';
       if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') { 
    my $bgimg=&Apache::lonxml::endredirection(); 
    if ($target eq 'web') {
       $bgimg=&Apache::imageresponse::clean_up_image($bgimg);
       $args{"cgi.$cgi_id.BGIMG"}=&Apache::lonnet::escape($bgimg);
    } elsif ($target eq 'tex') {
       $result.=&make_eps_image($bgimg,$parstack,$safeeval,-2);
    }
       }
       return $result;
   }
   
   sub make_eps_image {
       my ($bgimg,$parstack,$safeeval,$depth)=@_;
       my ($path,$file) = &Apache::londefdef::get_eps_image($bgimg);
       ($height_param,$width_param)=
    &Apache::londefdef::image_size($bgimg,0.3,$parstack,$safeeval,
          $depth,1);
       my $dirtywidth=$width_param+5;
       my $result.='\vspace*{2mm}\noindent \parbox{'.$dirtywidth.
    ' mm}{  \noindent \epsfxsize='.$width_param.
    ' mm \epsffile{'.$path.$file.
    '}\setlength{\unitlength}{1mm}  \begin{picture}('.
    $width_param.','.$height_param.')(0,-'.$height_param.')';
       return $result;
 }  }
   
 sub start_labelgroup {  sub start_labelgroup {
Line 211  sub start_labelgroup { Line 202  sub start_labelgroup {
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $result.=&Apache::edit::tag_start($target,$token);   $result.=&Apache::edit::tag_start($target,$token);
  $result.=&Apache::edit::text_arg('Name:','name',$token).   $result.=&Apache::edit::text_arg('Name:','name',$token).
     &Apache::edit::select_arg('Type:','type',['text','image'],$token).      &Apache::edit::select_arg('Type:','type',['text','image'],$token);
     &Apache::edit::end_row().&Apache::edit::start_spanning_row();   if (!defined($token->[2]{'TeXsize'})) {
       $token->[2]{'TeXsize'}='\normalsize';
    }
    $result.=&Apache::edit::select_arg('TeX font size:','TeXsize',
      ['\tiny','\scriptsize',
       '\footnotesize','\small',
       '\normalsize','\large','\Large',
       '\LARGE','\huge','\Huge'],
      $token);
    $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  my $constructtag=&Apache::edit::get_new_args($token,$parstack,   my $constructtag=&Apache::edit::get_new_args($token,$parstack,
      $safeeval,'name','type');       $safeeval,'name','type',
        'TeXsize');
  if ($constructtag) {   if ($constructtag) {
     $result = &Apache::edit::rebuild_tag($token);      $result = &Apache::edit::rebuild_tag($token);
     $result.=&Apache::edit::handle_insert();      $result.=&Apache::edit::handle_insert();
Line 226  sub start_labelgroup { Line 227  sub start_labelgroup {
   
 sub add_vars {  sub add_vars {
     my ($name,$order,$label,$labelorder,$value,$image,$safeeval) = @_;      my ($name,$order,$label,$labelorder,$value,$image,$safeeval) = @_;
       if (!defined($name) || $name eq '') { return; }
     my $code = '${'.$name."}{'".($order+1)."'}='".$label."';";      my $code = '${'.$name."}{'".($order+1)."'}='".$label."';";
     my $out=Apache::run::run($code,$safeeval);      my $out=Apache::run::run($code,$safeeval);
     if ($value) {      if ($value) {
Line 254  sub end_labelgroup { Line 256  sub end_labelgroup {
  &Apache::structuretags::shuffle(\@idx_arr);   &Apache::structuretags::shuffle(\@idx_arr);
  for(0 .. $#Apache::randomlabel::label_arr) {   for(0 .. $#Apache::randomlabel::label_arr) {
     my $str;      my $str;
     my $xstr;  
     my $ystr;  
     my $label = "$Apache::randomlabel::label_arr[ $idx_arr[$_] ]";      my $label = "$Apache::randomlabel::label_arr[ $idx_arr[$_] ]";
     my $x = $Apache::randomlabel::xcoord[$_];      my $x = $Apache::randomlabel::xcoord[$_];
     my $y = $Apache::randomlabel::ycoord[$_];      my $y = $Apache::randomlabel::ycoord[$_];
     my $value = $Apache::randomlabel::value[$_];      my $value = $Apache::randomlabel::value[$_];
       my $i=$Apache::randomlabel::obj_cnt++;
     if( $type eq 'text') {      if( $type eq 'text') {
  &add_vars($gname,$_,$label,$idx_arr[$_],$value,'',$safeeval);   &add_vars($gname,$_,$label,$idx_arr[$_],$value,'',$safeeval);
  $str = 'LB'.$Apache::randomlabel::tlabel_cnt;   $str = join(':',$x,$y,&Apache::lonnet::escape($label));
  $xstr = 'X'.$Apache::randomlabel::tlabel_cnt;   $args{"cgi.$cgi_id.OBJTYPE"}.='LABEL:';
  $ystr = 'Y'.$Apache::randomlabel::tlabel_cnt;  
  $Apache::randomlabel::tlabel_cnt += 1;  
     } elsif ( $type eq 'image') {      } elsif ( $type eq 'image') {
  &add_vars($gname,$_,   &add_vars($gname,$_,
   $Apache::randomlabel::description[$idx_arr[$_]],    $Apache::randomlabel::description[$idx_arr[$_]],
   $idx_arr[$_],$value,$label,$safeeval);    $idx_arr[$_],$value,$label,$safeeval);
  $str = 'IMG'.$Apache::randomlabel::ilabel_cnt;   $str = join(':',$x,$y,&Apache::lonnet::escape($label));
  $xstr = 'IX'.$Apache::randomlabel::ilabel_cnt;   $args{"cgi.$cgi_id.OBJTYPE"}.='IMAGE:';
  $ystr = 'IY'.$Apache::randomlabel::ilabel_cnt;  
  $Apache::randomlabel::ilabel_cnt += 1;  
     } else {      } else {
  &Apache::lonxml::error('Unknown type of label :'.$type.':');   &Apache::lonxml::error('Unknown type of label :'.$type.':');
     }      }
     if ($target eq 'web') {      if ($target eq 'web') { $args{"cgi.$cgi_id.OBJ$i"} =$str; }
  $args{"cgi.$cgi_id.$str"} =&Apache::lonnet::escape($label);  
  $args{"cgi.$cgi_id.$xstr"}=$x;  
  $args{"cgi.$cgi_id.$ystr"}=$y;  
     }  
  }   }
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  my $WX1=0; #  Web x-coord. of upper left corner (ULC)   my $WX1=0; #  Web x-coord. of upper left corner (ULC)
  my $WY1=0; #  Web y-coord. of (ULC)   my $WY1=0; #  Web y-coord. of (ULC)
  my $wwidth=&Apache::lonxml::get_param('width',$parstack,$safeeval,-2);   my $wwidth=&Apache::lonxml::get_param('width',$parstack,$safeeval,-2);
  my $wheight=&Apache::lonxml::get_param('height',$parstack,$safeeval,-2);   my $wheight=&Apache::lonxml::get_param('height',$parstack,$safeeval,-2);
  my $texwidth=&adjust_textwidth(&Apache::lonxml::get_param('texwidth',$parstack,$safeeval,-2,1));   my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
  if (!$texwidth) { $texwidth=90; }   if (!defined($TeXsize)) { $TeXsize='\\normalsize'; }
  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);   my @idx_arr = (0 .. $#Apache::randomlabel::label_arr);
  &Apache::structuretags::shuffle(\@idx_arr);   &Apache::structuretags::shuffle(\@idx_arr);
   
Line 308  sub end_labelgroup { Line 291  sub end_labelgroup {
  for(my $i=0;$i <= $#Apache::randomlabel::label_arr; $i++) {   for(my $i=0;$i <= $#Apache::randomlabel::label_arr; $i++) {
     my $label = "$Apache::randomlabel::label_arr[ $idx_arr[$i] ]";      my $label = "$Apache::randomlabel::label_arr[ $idx_arr[$i] ]";
     my $x = $Apache::randomlabel::xcoord[$i];      my $x = $Apache::randomlabel::xcoord[$i];
     my $y = $Apache::randomlabel::ycoord[$i];      # FIXME the 3.5 here is the 'height' of the letter in TeX
       my $y = $Apache::randomlabel::ycoord[$i]-3.5;
     my $value = $Apache::randomlabel::value[$i];      my $value = $Apache::randomlabel::value[$i];
     #x latex coordinate      #x latex coordinate
     my $tcX=($x)*($texwidth/$wwidth);      my $tcX=($x)*($width_param/$wwidth);
     #y latex coordinate      #y latex coordinate
             #      my $ratio=($wwidth > 0 ? $wheight/$wwidth : 1 );              #      my $ratio=($wwidth > 0 ? $wheight/$wwidth : 1 );
     my $tcY=$TY1-$y*($TY1/$wheight);      my $tcY=$height_param-$y*($height_param/$wheight);
     $tcX=sprintf('%.2f',$tcX);      $tcX=sprintf('%.2f',$tcX);
     $tcY=sprintf('%.2f',$tcY);      $tcY=sprintf('%.2f',$tcY);
     $result.='\put('.$tcX.','.$tcY.'){\normalsize \bf '.$label.'}'."\n";      $result.='\put('.$tcX.','.$tcY.'){'.$TeXsize.' \bf '.$label.'}'."\n";
     if( $type eq 'text') {      if( $type eq 'text') {
  &add_vars($gname,$i,$label,$idx_arr[$i],$value,'',$safeeval);   &add_vars($gname,$i,$label,$idx_arr[$i],$value,'',$safeeval);
     } elsif ( $type eq 'image') {      } elsif ( $type eq 'image') {
Line 377  sub start_label { Line 361  sub start_label {
     my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);      my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
     if ($target eq 'web' || $target eq 'tex' ||      if ($target eq 'web' || $target eq 'tex' ||
  $target eq 'grade' || $target eq 'answer' || $target eq 'analyze') {   $target eq 'grade' || $target eq 'answer' || $target eq 'analyze') {
  my $ltext=&Apache::lonxml::get_all_text("/label",$parser);   &Apache::lonxml::startredirection; 
  $ltext=&Apache::run::evaluate($ltext,$safeeval,$$parstack[-1]);  
  if ($type eq 'image') {  
     &Apache::lonxml::debug("Turning $ltext, $Apache::lonxml::pwd[-1]");  
     $ltext=&Apache::lonnet::filelocation($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 ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $result.=&Apache::edit::tag_start($target,$token,"$type Label");   $result.=&Apache::edit::tag_start($target,$token,"$type Label");
  my $text=&Apache::lonxml::get_all_text("/label",$parser);   my $text=&Apache::lonxml::get_all_text("/label",$parser);
Line 422  sub start_label { Line 395  sub start_label {
 sub end_label {  sub end_label {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my @result;      my @result;
     if ($target eq 'edit') { @result=('','no') }      if ($target eq 'edit') {
    @result=('','no') ;
       } elsif ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
        $target eq 'answer' || $target eq 'analyze') {
    my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
    my $ltext=&Apache::lonxml::endredirection; 
    if ($type eq 'image') {
       &Apache::lonxml::debug("Turning $ltext, $Apache::lonxml::pwd[-1]");
       $ltext=&Apache::imageresponse::clean_up_image($ltext);
   #    $ltext=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],
   # $ltext);
       &Apache::lonxml::debug("into $ltext");
       my $description = &Apache::lonxml::get_param('description',
    $parstack,$safeeval);
       push(@Apache::randomlabel::description,$description);
    } else {
       $ltext=~s/[\r\n]*//gs
    }
    push(@Apache::randomlabel::label_arr,$ltext);
       }
     return @result;      return @result;
 }  }
   
Removed from v.1.53  
changed lines
  Added in v.1.67

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