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Diff for /loncom/xml/londefdef.pm between versions 1.230 and 1.249

version 1.230, 2004/07/15 17:05:20 version 1.249, 2004/12/29 11:39:25
Line 63  sub initialize_londefdef { Line 63  sub initialize_londefdef {
     $Apache::londefdef::TD_redirection=0;      $Apache::londefdef::TD_redirection=0;
     @Apache::londefdef::table = ();      @Apache::londefdef::table = ();
     $Apache::londefdef::select=0;      $Apache::londefdef::select=0;
     @Apache::londefdef::description=();      undef(@Apache::londefdef::description);
     $Apache::londefdef::DD_redirection=0;      @Apache::londefdef::DD=(0);
     $Apache::londefdef::DT_redirection=0;      @Apache::londefdef::DT=(0);
       @Apache::londefdef::seenDT=(0);
       $Apache::londefdef::list_index=0;
 }  }
   
 #======================= TAG SUBROUTINES =====================  #======================= TAG SUBROUTINES =====================
Line 150  sub start_html { Line 152  sub start_html {
     my $options=$ENV{'course.'.$ENV{'request.course.id'}.'.tthoptions'};      my $options=$ENV{'course.'.$ENV{'request.course.id'}.'.tthoptions'};
     &Apache::lontexconvert::init_tth();      &Apache::lontexconvert::init_tth();
     if ($target eq 'web' || $target eq 'edit') {      if ($target eq 'web' || $target eq 'edit') {
  $currentstring = &Apache::lonxml::xmlbegin().   $currentstring = &Apache::lonxml::xmlbegin();
     &Apache::lonxml::fontsettings();       
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  @Apache::londefdef::table = ();   @Apache::londefdef::table = ();
  $currentstring .= '\documentclass[letterpaper]{article}';   $currentstring .= '\documentclass[letterpaper]{article}';
Line 162  sub start_html { Line 163  sub start_html {
                           '\usepackage{textcomp}'.                            '\usepackage{textcomp}'.
                           '\usepackage{makeidx}'.                            '\usepackage{makeidx}'.
                           '\usepackage[dvips]{graphicx}'.                            '\usepackage[dvips]{graphicx}'.
     '\usepackage{picins}'.
                           '\usepackage{epsfig}'.                            '\usepackage{epsfig}'.
                           '\usepackage{calc}'.                            '\usepackage{calc}'.
                           '\usepackage{amsmath}'.                            '\usepackage{amsmath}'.
Line 176  sub start_html { Line 178  sub start_html {
 }  }
   
 sub end_html {  sub end_html {
     my ($target,$token) = @_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web') {      if ($target eq 'web') {
  $currentstring = &Apache::lonxml::xmlend();   $currentstring = &Apache::lonxml::xmlend($target,$parser);
     }      }
     return $currentstring;      return $currentstring;
 }  }
Line 189  sub start_head { Line 191  sub start_head {
     my ($target,$token) = @_;      my ($target,$token) = @_;
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web') {      if ($target eq 'web') {
  $currentstring = $token->[4];        $currentstring = $token->[4].&Apache::lonxml::fontsettings();
     }       } 
     return $currentstring;      return $currentstring;
 }  }
Line 478  sub end_accessrule { Line 480  sub end_accessrule {
 sub start_body {  sub start_body {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';      my $currentstring = '';
   
     if ($target eq 'web') {      if ($target eq 'web') {
  if ($Apache::lonhomework::parsing_a_problem) {   if ($Apache::lonhomework::parsing_a_problem) {
     &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");      &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
Line 529  sub start_body { Line 532  sub start_body {
  $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().   $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
     ';'.$onUnload;      ';'.$onUnload;
   
  $currentstring .= '<'.$token->[1];   if ($ENV{'request.state'} ne 'construct') {
       $currentstring .= '<'.$token->[1];
    }
  foreach (keys %{$token->[2]}) {   foreach (keys %{$token->[2]}) {
     $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';      $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
  }   }
  $currentstring.='>';   if ($ENV{'request.state'} ne 'construct') {
       $currentstring.='>';
    }
  if ($ENV{'request.state'} ne 'published') {   if ($ENV{'request.state'} ne 'published') {
       my $remote=($ENV{'environment.remote'} ne 'off');
       $currentstring=&Apache::loncommon::bodytag(undef,undef,
          $currentstring,$remote);
     $currentstring.=(<<EDITBUTTON);      $currentstring.=(<<EDITBUTTON);
  <form method="post">   <form method="post">
  <input type="submit" name="editmode" accesskey="e" value="Edit" />   <input type="submit" name="editmode" accesskey="e" value="Edit" />
Line 1134  sub end_p { Line 1144  sub end_p {
  $currentstring .= $token->[2];   $currentstring .= $token->[2];
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);   my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
  if ($align eq 'center') {   if (not defined $align) {
       $currentstring.='\strut\\\\\strut ';
    } elsif ($align eq 'center') {
     $currentstring .= '\end{center}';      $currentstring .= '\end{center}';
  } elsif ($align eq 'right') {   } elsif ($align eq 'right') {
     $currentstring .= '}}';      $currentstring .= '}}';
  } elsif ($align eq 'left') {   } elsif ($align eq 'left') {
     $currentstring .= '}\hfill}';      $currentstring .= '}\hfill}';
  }   } 
     }      }
     return $currentstring;      return $currentstring;
 }  }
Line 1483  sub start_li { Line 1495  sub start_li {
     if ($target eq 'web') {      if ($target eq 'web') {
  $currentstring = $token->[4];        $currentstring = $token->[4];     
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  my  $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,1);   my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
  if ($type=~/circle/) {   my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
     $currentstring .= ' \item[o] ';   #FIXME need to support types i and I 
    if ($type=~/disc/) {
       $currentstring .= ' \item[$\bullet$] ';
    } elsif ($type=~/circle/) {
       $currentstring .= ' \item[$\circ$] ';
  } elsif ($type=~/square/) {   } elsif ($type=~/square/) {
     $currentstring .= ' \item[$\Box$] ';      $currentstring .= ' \item[$\diamond$] ';
  } elsif ($type ne '') {    } elsif ($type eq '1') {
     $currentstring .= ' \item['.$type.'] ';      $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]';
    } elsif ($type eq 'A') {
       $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]';
    } elsif ($type eq 'a') {
       $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]';
    } elsif ($value ne '') {
       $currentstring .= ' \item['.$value.'] ';
  } else {   } else {
     $currentstring .= ' \item ';      $currentstring .= ' \item ';
  }     }  
     }    $Apache::londefdef::list_index++;
       }
     return $currentstring;      return $currentstring;
 }  }
   
Line 1540  sub start_ul { Line 1563  sub start_ul {
  $currentstring = $token->[4];        $currentstring = $token->[4];     
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);   my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
    $Apache::londefdef::list_index=0;
  if ($TeXtype eq 'disc') {   if ($TeXtype eq 'disc') {
     $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.      $currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
                               '\renewcommand{\labelitemii}{$\bullet$}'.                                 '\renewcommand{\labelitemii}{$\bullet$}'. 
Line 1628  sub start_ol { Line 1652  sub start_ol {
     if ($target eq 'web') {      if ($target eq 'web') {
  $currentstring = $token->[4];        $currentstring = $token->[4];     
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
    $Apache::londefdef::list_index=0;
  my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);   my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
  if ($type eq '1') {   if ($type eq '1') {
     $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.      $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
Line 1682  sub start_dl { Line 1707  sub start_dl {
  $currentstring = $token->[4];        $currentstring = $token->[4];     
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $currentstring = '\begin{description}';   $currentstring = '\begin{description}';
  @Apache::londefdef::description=();   $Apache::londefdef::DL++;
  $Apache::londefdef::DD_redirection=0;   push(@Apache::londefdef::description,[]);
  $Apache::londefdef::DT_redirection=0;   $Apache::londefdef::DD[$Apache::londefdef::DL]=0;
    $Apache::londefdef::DT[$Apache::londefdef::DL]=0;
    $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
     }       } 
     return $currentstring;      return $currentstring;
 }  }
Line 1695  sub end_dl { Line 1722  sub end_dl {
     if ($target eq 'web') {      if ($target eq 'web') {
  $currentstring = $token->[2];        $currentstring = $token->[2];     
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  if ($Apache::londefdef::DT_redirection) {   if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
     my $data=&item_cleanup;   if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
     push @Apache::londefdef::description,'\item['.$data.']';   foreach my $element (@{$Apache::londefdef::description[-1]}) {
     $Apache::londefdef::DT_redirection=0;  
  } elsif ($Apache::londefdef::DD_redirection) {  
     $Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();  
  }  
  foreach my $element (@Apache::londefdef::description) {  
     $currentstring.=' '.$element.' ';      $currentstring.=' '.$element.' ';
  }   }
  @Apache::londefdef::description=();   pop(@Apache::londefdef::description);
  $currentstring.='\end{description}';     $currentstring.='\end{description}';  
    delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
    delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
    delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
    $Apache::londefdef::DL--;
     }       } 
     return $currentstring;      return $currentstring;
 }  }
Line 1718  sub start_dt { Line 1744  sub start_dt {
     if ($target eq 'web') {      if ($target eq 'web') {
  $currentstring = $token->[4];        $currentstring = $token->[4];     
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  if ($Apache::londefdef::DT_redirection) {   if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
     my $data=&item_cleanup;   if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
     push @Apache::londefdef::description,'\item['.$data.']';  
     $Apache::londefdef::DT_redirection=0;  
  } elsif ($Apache::londefdef::DD_redirection) {  
     $Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();  
     $Apache::londefdef::DD_redirection=0;  
  }  
  &Apache::lonxml::startredirection();   &Apache::lonxml::startredirection();
  $Apache::londefdef::DT_redirection=1;   $Apache::londefdef::DT[-1]++;
    $Apache::londefdef::seenDT[-1]=1;
     }       } 
     return $currentstring;      return $currentstring;
 }  }
Line 1738  sub end_dt { Line 1759  sub end_dt {
     if ($target eq 'web') {      if ($target eq 'web') {
  $currentstring = $token->[2];       $currentstring = $token->[2];    
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  my $data=&item_cleanup;   if ($Apache::londefdef::DT[-1]) {
  push @Apache::londefdef::description,'\item['.$data.']';      my $data=&item_cleanup();
  $Apache::londefdef::DT_redirection=0;      push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
       $Apache::londefdef::DT[-1]--;
    }
     }       } 
     return $currentstring;      return $currentstring;
 }  }
Line 1759  sub start_dd { Line 1782  sub start_dd {
     if ($target eq 'web') {      if ($target eq 'web') {
  $currentstring = $token->[4];        $currentstring = $token->[4];     
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  if ($Apache::londefdef::DT_redirection) {   if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
     my $data=&item_cleanup;   if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
     push @Apache::londefdef::description,'\item['.$data.']';   if (!$Apache::londefdef::seenDT[-1]) {
     $Apache::londefdef::DT_redirection=0;      push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm ');
  }   }
  $Apache::londefdef::DD_redirection=1;   push(@{$Apache::londefdef::description[-1]},'');
    $Apache::londefdef::description[-1]->[-1].=' \strut ';
    $Apache::londefdef::DD[-1]++;
  &Apache::lonxml::startredirection();   &Apache::lonxml::startredirection();
     }       } 
     return $currentstring;      return $currentstring;
Line 1776  sub end_dd { Line 1801  sub end_dd {
     if ($target eq 'web') {      if ($target eq 'web') {
  $currentstring = $token->[2];       $currentstring = $token->[2];    
     }  elsif ($target eq 'tex') {      }  elsif ($target eq 'tex') {
  $Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();   $Apache::londefdef::description[-1]->[-1].=
  $Apache::londefdef::DD_redirection=0;      &Apache::lonxml::endredirection().' \vskip 0mm ';
    $Apache::londefdef::DD[-1]--;
     }      }
     return $currentstring;      return $currentstring;
 }  }
Line 2193  sub end_td_tex { Line 2219  sub end_td_tex {
     push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;      push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
     push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';      push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
     push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';      push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
    } elsif ($data=~/\\parbox\{\s*\d+\.?\d*\s*(mm|cm|in|pc|pt)*\s*\}/ or $data=~/\\epsfxsize\s*=\s*\d+\.?\d*\s*(mm|cm|in|pc|pt)*/) {
       my $garbage_data=$data;
       my $fwidth=0;
               while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) {
    my $current_length=&recalc($1);
    $current_length=~/(\d+\.?\d*)/;
    if ($fwidth<$1) {$fwidth=$1;}
    $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
       }
               while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
    my $current_length=&recalc($1);
    $current_length=~/(\d+\.?\d*)/;
    if ($fwidth<$1) {$fwidth=$1;}
    $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
       }
       push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
       push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
       push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
       push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
       $data=~s/\\\\\s*$//; 
  } else {     } else {  
     $data=~s/^\s+(\S.*)/$1/;       $data=~s/^\s+(\S.*)/$1/; 
     $data=~s/(.*\S)\s+$/$1/;      $data=~s/(.*\S)\s+$/$1/;
Line 2374  sub end_th { Line 2420  sub end_th {
 }  }
             
 #-- <img> tag (end tag forbidden)  #-- <img> tag (end tag forbidden)
   #
   #  Render the <IMG> tag.
   #     <IMG> has the following attributes (in addition to the 
   #     standard HTML ones:
   #      TeXwrap   - Governs how the tex target will try to wrap text around
   #                  horizontally aligned images.
   #      TeXwidth  - The width of the image when rendered for print (mm).
   #      TeXheight - The height of the image when rendered for print (mm)
   #         (Note there seems to also be support for this as a % of page size)
   #      
 sub start_img {  sub start_img {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,      my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
Line 2385  sub start_img { Line 2441  sub start_img {
     $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;      $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
     my $currentstring = '';      my $currentstring = '';
     my $scaling = .3;      my $scaling = .3;
   
      # Render unto browsers that which are the browser's...
   
     if ($target eq 'web') {      if ($target eq 'web') {
  if ($ENV{'browser.imagesuppress'} ne 'on') {   if ($ENV{'browser.imagesuppress'} ne 'on') {
     $currentstring.= $token->[4];      $currentstring.= $token->[4];
Line 2397  sub start_img { Line 2456  sub start_img {
     }      }
     $currentstring.='[IMAGE: '.$alttag.']';      $currentstring.='[IMAGE: '.$alttag.']';
  }   }
   
    # and render unto TeX that which is LaTeX
   
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);   #
         #if uploaded restore the path   #  The alignment will require some superstructure to be put around
  if ($src=~/^\/uploaded\/([^\/]+)\/([^\/]+)\/simplepage\/([^\/]+)$/) {   #  the \includegraphics stuff.  At present we can only partially
     $src=&Apache::loncommon::propath($1,$2).'/userfiles/simplepage/'.$3;   #  simulate the alignments offered by html.
  } elsif ($src=~/^\/uploaded\/([^\/]+)\/([^\/]+)\/aboutme\/([^\/]+)$/) {   #
     $src=&Apache::loncommon::propath($1,$2).'/userfiles/aboutme/'.$3;   #
    my $align = lc(&Apache::lonxml::get_param('align', 
     $parstack,
     $safeeval,
     undef,1));
    if(!$align) {
       $align = "bottom"; # This is html's default so it's ours too.
    }
    #
    &Apache::lonxml::debug("Alignemnt = $align");
    #  LaTeX's image/text wrapping is really bad since it wants to
    #  make figures float.  
           #   The user has the optional parameter (applicable only to l/r
    # alignment to use the picins/parpic directive to get wrapped text
    # this is also imperfect.. that's why we give them a choice...
    # so they can't yell at us for our choice.
    #
    my $latex_rendering = &Apache::lonxml::get_param('TeXwrap',
       $parstack,
       $safeeval,
       undef,0);
    &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
    if(!$latex_rendering) {
       $latex_rendering = "parbox";
  }   }
    &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
   
    my $oldSRC=$src;
           $oldSRC=~s/\.(gif|jpg|png)$/\.eps/;
    $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
  #if original gif/jpg/png file exist do following:   #if original gif/jpg/png file exist do following:
  if (-e $src) {   if (-e $src) {
     #what is the image size?      #what is the image size?
     my $width_param=&image_size($src,$scaling,$parstack,$safeeval);      my $width_param=&image_width($src,$scaling,$parstack,$safeeval);
       my $height_param=&image_height($src,$scaling,$parstack,$safeeval);
             my ($file,$path)=&file_path($src);               my ($file,$path)=&file_path($src); 
     my $newsrc = $src;      my $newsrc = $src;
     $newsrc =~ s/\.(gif|jpg|png)$/.eps/i;      $newsrc =~ s/\.(gif|jpg|png)$/.eps/i;
       &Apache::lonnet::repcopy($oldSRC);
     $file=~s/\.(gif|jpg|png)$/.eps/i;      $file=~s/\.(gif|jpg|png)$/.eps/i;
     #where can we find the picture?      #where can we find the picture?
     if (-e $newsrc) {      if (-e $newsrc) {
  #eps counterpart for image exist    #eps counterpart for image exist 
  if ($path) {   if ($path) {
     $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';      $currentstring .= '\graphicspath{{'.$path.'}}'
                .'\includegraphics[width='.$width_param.' mm,height='.$height_param.'mm]{'.$file.'} ';
  }   }
     } else {      } else {
  #there is no eps counterpart for image - check for ps one   #there is no eps counterpart for image - check for ps one
Line 2426  sub start_img { Line 2519  sub start_img {
     #ps counterpart for image exist       #ps counterpart for image exist 
     $file =~ s/\.eps$/\.ps/;      $file =~ s/\.eps$/\.ps/;
     if ($path) {      if ($path) {
  $currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';   $currentstring .= '\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
     }      }
  } else {   } else {
     #care about eps dynamical generation      #care about eps dynamical generation
     $currentstring.='\vskip 1 mm '.&eps_generation($src,$file,$width_param);      $currentstring.=&eps_generation($src,$file,$width_param);
  }   }
     }      }
       #    If there's an alignment specification we need to honor it here.
       #    For the horizontal alignments, we will also honor the
       #    value of the latex specfication.  The default is parbox,
       #    and that's used for illegal values too.  
       #    
       #    Even though we set a default alignment value, the user
       #    could have given us an illegal value.  In that case we
       #    just use the default alignment of bottom..
       if      ($align eq "top")    {
    $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';
       } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
    my $offset = $height_param/2;
    $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';
       } elsif ($align eq "left")   { 
    if ($latex_rendering eq "parpic") { 
       $currentstring = '\parpic[l]{'.$currentstring.'}';
    } else {                                     # parbox rendering
       $currentstring = '\newline'."\n".'\parbox{'.$width_param.'mm}{'.$currentstring.'}';
    }
       } elsif ($align eq "right")  {   
    if ($latex_rendering eq "parpic") {
       $currentstring = '\parpic[r]{'.$currentstring.'}';
    } else {                                 # parbox rendering. 
       $currentstring = '\parbox{'.$width_param.'mm}{\begin{flushright}'
                .$currentstring.'\end{flushright}} \newline'."\n";
    }
       } else { # Bottom is also default.
    # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';
       }
  } else {   } else {
     #original image file doesn't exist so check the alt attribute      #original image file doesn't exist so check the alt attribute
     my $alt =       my $alt = 
Line 2447  sub start_img { Line 2569  sub start_img {
  #<allow> tag will care about replication    #<allow> tag will care about replication 
     }      }
  }   }
   
    # And here's where the semi-quote breaks down: allow the user
           # to edit the beast as well by rendering the problem for edit:
   
   
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
  $currentstring .=&Apache::edit::tag_start($target,$token);   $currentstring .=&Apache::edit::tag_start($target,$token);
  $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).   $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
Line 2457  sub start_img { Line 2584  sub start_img {
  $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';   $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
  $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);   $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
  $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);   $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
    $currentstring .=&Apache::edit::select_arg('Alignment:','align',
      ['','bottom','middle','top','left','right'],$token,5);
    $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
      ['', 'parbox', 'parpic'], $token, 2);
  $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();   $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
  my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval);   my $src=    &Apache::lonxml::get_param('src',$parstack,$safeeval);
  my $alt=&Apache::lonxml::get_param('alt',$parstack,$safeeval);   my $alt=    &Apache::lonxml::get_param('alt',$parstack,$safeeval);
  my $width=&Apache::lonxml::get_param('width',$parstack,$safeeval);   my $width=  &Apache::lonxml::get_param('width',$parstack,$safeeval);
  my $height=&Apache::lonxml::get_param('height',$parstack,$safeeval);   my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
   
   
  $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';   $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
  if ($width) { $currentstring.=' width="'.$width.'" '; }   if ($width) { $currentstring.=' width="'.$width.'" '; }
  if ($height) { $currentstring.=' height="'.$height.'" '; }   if ($height) { $currentstring.=' height="'.$height.'" '; }
Line 2470  sub start_img { Line 2603  sub start_img {
  my ($osrc,$owidth,$oheight)=   my ($osrc,$owidth,$oheight)=
     ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});      ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
  my $ctag=&Apache::edit::get_new_args($token,$parstack,   my $ctag=&Apache::edit::get_new_args($token,$parstack,
      $safeeval,'src','alt',       $safeeval,'src','alt','align',
      'TeXwidth','TeXheight',       'TeXwidth','TeXheight', 'TeXwrap',
      'width','height');       'width','height');
  my ($nsrc,$nwidth,$nheight)=   my ($nsrc,$nwidth,$nheight)=
     ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});      ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
Line 2637  sub start_allow { Line 2770  sub start_allow {
     $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);      $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
     $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=      $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
  &Apache::lonnet::clutter($src);   &Apache::lonnet::clutter($src);
     &image_replication($src);      if ($target eq 'tex') { &image_replication($src); }
     my $result;      my $result;
     if ($target eq 'edit') {      if ($target eq 'edit') {
  $result .=&Apache::edit::tag_start($target,$token);   $result .=&Apache::edit::tag_start($target,$token);
Line 3655  sub image_size { Line 3788  sub image_size {
     $width_param = $TeXwidth;      $width_param = $TeXwidth;
  }   }
     } elsif ($TeXheight ne '') {      } elsif ($TeXheight ne '') {
  $width_param = $TeXheight/$height_param*$width_param;   $height_param = $TeXheight;
    $width_param  = $TeXheight/$height_param*$width_param;
     } elsif ($width ne '') {      } elsif ($width ne '') {
  $width_param = $width*$scaling;         $width_param = $width*$scaling;      
     }      }
     if ($width_param > $ENV{'form.textwidth'}) {$width_param =0.95*$ENV{'form.textwidth'}}      if ($width_param > $ENV{'form.textwidth'}) {$width_param =0.95*$ENV{'form.textwidth'}}
     return $width_param;      return ($height_param, $width_param);
   }
   
   sub image_width {
       my ($height, $width) = &image_size(@_);
       return $width;
   }
   #  Not yet 100% sure this is correct in all circumstances..
   #  due to my uncertainty about mods to image_size.
   #
   sub image_height {
       my ($height, $width) = &image_size(@_);
       return $height;
 }  }
   
 sub eps_generation {  sub eps_generation {
Line 3678  sub eps_generation { Line 3824  sub eps_generation {
  $newsrc=~s/\/home\/httpd\/lonUsers//;   $newsrc=~s/\/home\/httpd\/lonUsers//;
  $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;   $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;
     }      }
     return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';      if ($newsrc=~/\/userfiles\//) {
    return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
       } else {
    return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
       }
 }  }
   
 sub file_path {       sub file_path {     
Removed from v.1.230  
changed lines
  Added in v.1.249

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