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Diff for /loncom/homework/randomlabel.pm between versions 1.3 and 1.4

version 1.3, 2001/08/30 19:39:12 version 1.4, 2001/10/13 05:57:43
Line 4 Line 4
 # 8/10/2001 Isaac Tsai,   # 8/10/2001 Isaac Tsai, 
 # 8/30/2001 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=image>  #    <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-1</label>  #      <label>TEXT-1</label>
 #      <label>TEXT-2</label>  #      <label>TEXT-2</label>
 #      <label>TEXT-3</label>  #      <label>TEXT-3</label>
Line 46  sub start_randomlabel { Line 46  sub start_randomlabel {
   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 $w= &Apache::lonxml::get_param('width',$parstack,$safeeval);
   my $h= &Apache::lonxml::get_param('height',$parstack,$safeeval);    my $h= &Apache::lonxml::get_param('height',$parstack,$safeeval);
       my $texwidth= &Apache::lonxml::get_param('texwidth',$parstack,$safeeval);
     if (!$code) { $code='GLabel.class'; }
     if (!$codebase) { $codebase='/res/adm/includes/'; }
   $Apache::randomlabel::tlabel_cnt=0;    $Apache::randomlabel::tlabel_cnt=0;
   $Apache::randomlabel::ilabel_cnt=0;    $Apache::randomlabel::ilabel_cnt=0;
   if ($target eq 'web') {    if ($target eq 'web') {
     $result.="<applet code=$code codebase=$codebase width=\"$w\" height=\"$h\">";      $result.="<applet code=\"$code\" codebase=\"$codebase\" width=\"$w\" height=\"$h\">";
     $result.="<param name=\"bgimg\" value=\"$bgimg\">";      $result.="<param name=\"bgimg\" value=\"$bgimg\">";
     } elsif ($target eq 'tex') {
       $bgimg=~s/(.gif|.jpg)$/.ps/;
       $result.='\vspace*{2mm} \\ \noindent \epsfxsize='.$texwidth.' \epsffile{'.
         $bgimg.'}\setlength{\unitlength}{1mm} \\ \begin{picture}(0,0)(0,-5)';
   } elsif ($target eq 'edit') {    } elsif ($target eq 'edit') {
       $result.=&Apache::edit::tag_start($target,$token);
       $result.=&Apache::edit::text_arg('Image:','bgimg',$token,75).'<br />'.
         &Apache::edit::text_arg('Width(pixel):','width',$token,4).
    &Apache::edit::text_arg('Height(pixel):','height',$token,4).
     &Apache::edit::text_arg('TeXWidth(mm):','texwidth',$token,4).
       '</td></tr><tr><td colspan="3">';
   } elsif ($target eq 'modified') {    } elsif ($target eq 'modified') {
   } else {      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;
 }  }
Line 64  sub end_randomlabel { Line 82  sub end_randomlabel {
   my $result='';    my $result='';
   my $count;    my $count;
   
   $count = $Apache::randomlabel::tlabel_cnt;  
   if( $count != 0) {  
     $result.= "<param name=\"count\" value=\"$count\">";  
   }  
   $count = $Apache::randomlabel::ilabel_cnt;  
   if( $count != 0) {  
     $result.= "<param name=\"icount\" value=\"$count\">";  
   }  
   if ($target eq 'web') {    if ($target eq 'web') {
       $count = $Apache::randomlabel::tlabel_cnt;
       if( $count != 0) { $result.= "<param name=\"count\" value=\"$count\">"; }
       $count = $Apache::randomlabel::ilabel_cnt;
       if( $count != 0) { $result.= "<param name=\"icount\" value=\"$count\">"; }
     $result .= "</applet><BR />";      $result .= "</applet><BR />";
     } elsif ($target eq 'tex') {
       $result='\end{picture}';
     } elsif ($target eq 'edit') {
       $result.=&Apache::edit::end_table;
   }    }
   return $result;    return $result;
 }  }
Line 84  sub start_labelgroup { Line 103  sub start_labelgroup {
   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);
   $type =~tr/A-Z/a-z/;    $type =~tr/A-Z/a-z/;
   $Apache::randomlabel::groupname=$name;    if ($target eq 'web' || $target eq 'tex') {
   $Apache::randomlabel::type=$type;      $Apache::randomlabel::groupname=$name;
   @Apache::randomlabel::xcoord = ();      $Apache::randomlabel::type=$type;
   @Apache::randomlabel::ycoord = ();      @Apache::randomlabel::xcoord = ();
   @Apache::randomlabel::label_arr  = ();      @Apache::randomlabel::ycoord = ();
       @Apache::randomlabel::label_arr  = ();
     } 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'],$token).
    '</td></tr><tr><td colspan="3">';
     } elsif ($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;    return $result;
 }  }
   
   sub add_var {
     my ($name,$value,$type,$safeeval) = @_;
     if ($type eq 'array') {
       my $code = 'push(@'.$name.',\''.$value.'\');';
       my $out=Apache::run::run($code,$safeeval);
     } else {
       &Apache::lonxml::error('Unsupported add_var type :'.$type.':');
     }
   }
 # 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;  
   my $type  = $Apache::randomlabel::type;    my $type  = $Apache::randomlabel::type;
   my $code;    my $result='';
   my $out;    if ($target eq 'web') {
   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='';        my $str;
   my $str;        my $xstr;
   my $xstr;        my $ystr;
   my $ystr;        my $label = "$Apache::randomlabel::label_arr[ $idx_arr[$_] ]";
         if( $type eq 'text') {
   my @idx_arr = (0 .. $#Apache::randomlabel::label_arr);   &add_var($gname,$label,'array',$safeeval);
   &Apache::structuretags::shuffle(\@idx_arr);   $str = 'LB'.$Apache::randomlabel::tlabel_cnt;
   for(0 .. $#Apache::randomlabel::label_arr) {   $xstr = 'X'.$Apache::randomlabel::tlabel_cnt;
     $label = "$Apache::randomlabel::label_arr[ $idx_arr[$_] ]";   $ystr = 'Y'.$Apache::randomlabel::tlabel_cnt;
     if( $type eq 'text') {   $Apache::randomlabel::tlabel_cnt += 1;
       $code = "push(\@$gname, $label);" ;        } elsif ( $type eq 'image') {
       $str = 'LB'.$Apache::randomlabel::tlabel_cnt;   &add_var($gname,$idx_arr[$_],'array',$safeeval);
       $xstr = 'X'.$Apache::randomlabel::tlabel_cnt;   $str = 'LB'.$Apache::randomlabel::ilabel_cnt;
       $ystr = 'Y'.$Apache::randomlabel::tlabel_cnt;   $xstr = 'X'.$Apache::randomlabel::ilabel_cnt;
       $Apache::randomlabel::tlabel_cnt += 1;   $ystr = 'Y'.$Apache::randomlabel::ilabel_cnt;
     } elsif ( $type eq 'image') {   $Apache::randomlabel::ilabel_cnt += 1;
       $code = "push(\@$gname, $idx_arr[$_]);" ;        } else {
       $str = 'LB'.$Apache::randomlabel::ilabel_cnt;   &Apache::lonxml::error('Unknown type of label :'.$type.':');
       $xstr = 'X'.$Apache::randomlabel::ilabel_cnt;        }
       $ystr = 'Y'.$Apache::randomlabel::ilabel_cnt;        my $x = $Apache::randomlabel::xcoord[$_];
       $Apache::randomlabel::ilabel_cnt += 1;        my $y = $Apache::randomlabel::ycoord[$_];
     } else {        $result .= '<param name="' . $str  . '" value="'.$label.'">';
         $result .= '<param name="' . $xstr . '" value="'.$x.'">';
         $result .= '<param name="' . $ystr . '" value="'.$y.'">';
     }      }
     # $x = pop @Apache::randomlabel::xcoord;    } elsif ($target eq 'tex') {
     # $y = pop @Apache::randomlabel::ycoord;      my $WX1=0; #  Web x-coord. of upper left corner (ULC)
     $x = $Apache::randomlabel::xcoord[$_];      my $WY1=0; #  Web y-coord. of (ULC)
     $y = $Apache::randomlabel::ycoord[$_];      my $wwidth=&Apache::lonxml::get_param('width',$parstack,$safeeval,-2);
     $text .= "<param name=\"" . $str  . "\" value=\"$label\">";      my $wheight=&Apache::lonxml::get_param('height',$parstack,$safeeval,-2);
     $text .= "<param name=\"" . $xstr . "\" value=\"$x\"> ";      my $texwidth=&Apache::lonxml::get_param('texwidth',$parstack,$safeeval,-2);
     $text .= "<param name=\"" . $ystr . "\" value=\"$y\">";      my $TX1=0;
     $out=Apache::run::run($code,$safeeval);      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 $tcX=$x*($texwidth/$wwidth);
         my $tcY=$TY1-$y*($TY1/$wheight)-2;
         $tcX=sprintf('%.2f',$tcX);
         $tcY=sprintf('%.2f',$tcY);
         $result.='\put('.$tcX.','.$tcY.'){\normalsize \bf '.$label.'}'."\n";
         if( $type eq 'text') {
    &add_var($gname,$label,'array',$safeeval);
         } elsif ( $type eq 'image') {
    &add_var($gname,$idx_arr[$i],'array',$safeeval);
         } else {
    &Apache::lonxml::error('Unknown type of label :'.$type.':');
         }
       }
     } elsif ($target eq 'edit') {
       $result.=&Apache::edit::end_table;
   }    }
   return $text;    return $result;
 }  }
   
 # <location x=123 y=456 />  # <location x=123 y=456 />
Line 144  sub start_location { Line 219  sub start_location {
   my $x= &Apache::lonxml::get_param('x',$parstack,$safeeval);    my $x= &Apache::lonxml::get_param('x',$parstack,$safeeval);
   my $y= &Apache::lonxml::get_param('y',$parstack,$safeeval);    my $y= &Apache::lonxml::get_param('y',$parstack,$safeeval);
   my $result='';    my $result='';
     
   push(@Apache::randomlabel::xcoord,$x);    push(@Apache::randomlabel::xcoord,$x);
   push(@Apache::randomlabel::ycoord,$y);     push(@Apache::randomlabel::ycoord,$y);
     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).
    '</td></tr><tr><td colspan="3">';
       $result.=&Apache::edit::end_table;
     } elsif ($target eq 'modified') {
       my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
    'x','y');
       if ($constructtag) {
         $result = &Apache::edit::rebuild_tag($token);
         $result.=&Apache::edit::handle_insert();
       }
     }
   return $result;    return $result;
 }  }
   
 sub end_location {  sub end_location {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result='';    my @result;
   return $result;    if ($target eq 'edit') { @result=('','no') }
     return @result;
 }  }
   
 # <label>$var_abc</label>  # <label>$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",$$parser[$#$parser]);  
   my $result='';    my $result='';
     if ($target eq 'web' || $target eq 'tex') {
   push(@Apache::randomlabel::label_arr,$ltext);      my $ltext=&Apache::lonxml::get_all_text("/label",$$parser[-1]);
       push(@Apache::randomlabel::label_arr,$ltext);
     } elsif ($target eq 'edit') {
       $result.=&Apache::edit::tag_start($target,$token);
       my $text=&Apache::lonxml::get_all_text("/label",$$parser[-1]);
       $result.='</td></tr><tr><td colspan="3">'.
         &Apache::edit::editfield('',$text,'',20,1).
    &Apache::edit::end_table();
     } elsif ($target eq 'modified') {
       my $text=$$parser[-1]->get_text("/label");
       $result.=&Apache::edit::modifiedfield($token);
     }
   return $result;    return $result;
 }  }
   
 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') }
   return $result;    return @result;
 }  }
   
   
Removed from v.1.3  
changed lines
  Added in v.1.4

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