[BACK]Return to printout.pl CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / interface

Diff for /loncom/interface/printout.pl between versions 1.94 and 1.103

version 1.94, 2005/12/15 18:41:21 version 1.103, 2006/06/19 22:30:15
Line 25 Line 25
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
   
 BEGIN {  
     eval "use Apache2::compat();";  
 };  
 use lib '/home/httpd/lib/perl';  use lib '/home/httpd/lib/perl';
 use LONCAPA::loncgi;  use LONCAPA::loncgi;
 use File::Path;  use File::Path;
 use File::Basename;  use File::Basename;
 use IO::File;  use IO::File;
 use Image::Magick;  use Image::Magick;
 use Apache::lonhtmlcommon;  use Apache::lonhtmlcommon();
 use Apache::lonnet;  use Apache::lonnet;
 use Apache::loncommon;  use Apache::loncommon();
 use Apache::lonlocal;  use Apache::lonlocal;
 use Apache::lonmsg;  use Apache::lonmsg();
 use LONCAPA::Enrollment;  use LONCAPA::Enrollment;
   
 use strict;  use strict;
Line 164  END Line 161  END
 }  }
  &Apache::lonlocal::get_language_handle();   &Apache::lonlocal::get_language_handle();
  &Apache::loncommon::content_type(undef,'text/html');   &Apache::loncommon::content_type(undef,'text/html');
  my $bodytag=&Apache::loncommon::bodytag('Creating PDF','','');  
  print $bodytag;    print(&Apache::loncommon::start_page('Creating PDF'));
   
   my $identifier = $ENV{'QUERY_STRING'};    my $identifier = $ENV{'QUERY_STRING'};
   my $texfile = $env{'cgi.'.$identifier.'.file'};    my $texfile = $env{'cgi.'.$identifier.'.file'};
Line 242  print "<a href=\"$backref\"><b>Return</b Line 239  print "<a href=\"$backref\"><b>Return</b
       $done_conversion{$not_eps}=1;        $done_conversion{$not_eps}=1;
       # print "Converting $not_eps -> $eps_f"; # Debugging        # print "Converting $not_eps -> $eps_f"; # Debugging
       system("convert $not_eps $eps_f");        system("convert $not_eps $eps_f");
               #check is eps exist in prtspool                # check is eps exist in prtspool
               if(not -e $eps_f) {                if (not -e $eps_f) {
     # converting an animated gif creates either:
                     # anim.gif.eps.0
                     # or
                     # anim.gif-0.eps
   for (my $i=0;$i<10000;$i++) {    for (my $i=0;$i<10000;$i++) {
       if (-e $eps_f.'.'.$i) {        if (-e $eps_f.'.'.$i) {
   rename $eps_f.'.'.$i, $eps_f;    rename($eps_f.'.'.$i, $eps_f);
     last;
         }
         my $anim_eps = $eps_f;
         $anim_eps =~ s/(\.[^.]*)\.eps$/$1-$i\.eps/i;
         if (-e $anim_eps) {
     rename($anim_eps, $eps_f);
   last;    last;
       }        }
   }    }
       }          }
         # imagemagick 6.2.0-6.2.7 fails to properly handle
                 # convert anim.gif anim.gif.eps
                 # it creates anim.eps instead. 
                 if (not -e $eps_f) {
     my $eps_f2 = $eps_f;
     $eps_f2 =~ s/\.[^.]*\.eps$/\.eps/i;
     if(-e $eps_f2) {
         rename($eps_f2,$eps_f);
     }
         }
   
   }    }
       }        }
       if ($advanced_role) {         if ($advanced_role) { 
Line 337  foreach $texfile (@texfile) { Line 355  foreach $texfile (@texfile) {
  \%prog_state,$dvi_file);   \%prog_state,$dvi_file);
       if ($tableofcontents eq 'yes') {        if ($tableofcontents eq 'yes') {
       &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",        &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
  "for $status_statement now LaTeXing file for table of contents",   "for $status_statement First LaTeX of file for table of contents",
    \%prog_state,$dvi_file);
         &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
    "for $status_statement Second LaTeX of file for table of contents",
  \%prog_state,$dvi_file);   \%prog_state,$dvi_file);
       } #to create table of contents        } #to create table of contents
       my $idxname=$name_file;        my $idxname=$name_file;
Line 455  foreach $texfile (@texfile) { Line 476  foreach $texfile (@texfile) {
      "for $status_statement now Converting to PS",       "for $status_statement now Converting to PS",
      \%prog_state,$new_name_file);       \%prog_state,$new_name_file);
   if (-e $new_name_file) {    if (-e $new_name_file) {
       print "<h1>PDF output file (see link below)</h1>\n";        my $latex_file = $name_file;
         $latex_file    =~ s/\.dvi/\.tex/;
         &repaginate($new_name_file, $latex_file, $numberofcolumns);
         #
         #  Now have to re-latex, re dvips again to 
         #  get the repaginated postscript.
         #
         &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
    "for $status_statement first latex to repaginate",
    \%prog_state, $name_file);
         &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
    "for $status_statement second latex to repaginate",
    \%prog_state, $name_file);
         &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
    "for $status_statement third latex to repaginate",
    \%prog_state, $name_file);
         &busy_wait_command("$comma $name_file 1>dev/null 2>/dev/null",
    "for $status_statement dvips to repaginate",
    \%prog_state, $new_name_file);
   
         print "\n<h1>PDF output file (see link below)</h1>\n";
       $new_name_file =~ m/^(.*)\./;        $new_name_file =~ m/^(.*)\./;
       my $ps_file = my $tempo_file = $1.'temporar.ps';        my $ps_file = my $tempo_file = $1.'temporar.ps';
       my $pdf_file = $1.'.pdf';        my $pdf_file = $1.'.pdf';
Line 529  foreach $texfile (@texfile) { Line 570  foreach $texfile (@texfile) {
      "for $status_statement now Converting to PS",       "for $status_statement now Converting to PS",
      \%prog_state,$new_name_file);       \%prog_state,$new_name_file);
   if (-e $new_name_file) {    if (-e $new_name_file) {
         my $latex_file = $name_file;
         $latex_file =~ s/\.dvi/\.tex/;
         &repaginate($new_name_file, $latex_file,  $numberofcolumns);
         &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
    "for $status_statement first latex to repaginate",
    \%prog_state, $name_file);
         &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
    "for $status_statement second latex to repaginate",
    \%prog_state, $name_file);
         &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
    "for $status_statement third latex to repaginate",
    \%prog_state, $name_file);
         &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
    "for $status_statement dvips to repaginate",
    \%prog_state, $new_name_file);
       print "<br />";        print "<br />";
       $new_name_file =~ m/^(.*)\./;        $new_name_file =~ m/^(.*)\./;
       my $ps_file = my $tempo_file = $1.'temporar.ps';        my $ps_file = my $tempo_file = $1.'temporar.ps';
Line 607  if ($number_of_files>1) { Line 663  if ($number_of_files>1) {
     print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";      print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
 }  }
 if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }  if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
   print(&Apache::loncommon::end_page());
 my $done;  my $done;
   
 sub REAPER {  sub REAPER {
     $done=1;      $done=1;
 }  }
Line 618  sub busy_wait_command { Line 675  sub busy_wait_command {
           
     $SIG{CHLD} = \&REAPER;      $SIG{CHLD} = \&REAPER;
     $done=0;      $done=0;
       print("<p> Doing : <tt>$command</tt>");
     my $pid=open(CMD,"$command |");      my $pid=open(CMD,"$command |");
     if ($advanced_role) {      if ($advanced_role) {
  &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);   &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
Line 637  sub busy_wait_command { Line 695  sub busy_wait_command {
     $SIG{CHLD}='IGNORE';      $SIG{CHLD}='IGNORE';
     close(CMD);      close(CMD);
 }  }
       print("<p> End</p>");
   
   #  Repagninate
   #  What we need to do:
   #   - Count the number of pages in each student.
   #   - Rewrite the latex file replacing the \specials that
   #     mark the end of student with an appropriate number of newlines.
   #   parameters:
   #     psfile     - Postscript filename
   #     latexfile  - LaTeX filename
   #     columns    - number of columns.
   sub repaginate {
   
       # We will try to do this in 2 passes through the postscript since
       # the postscript is potentially large, to do 2 passes, the first pass
       # must be able to calculate the total number of document pages so that
       # at the beginning of the second pass we already know how to replace
       #  %%Pages:
   
       #  Figure out
       #    1. Number of pages in the document
       #    2. Maximum number of pages in a student
       #    3. Number of pages in each student.
   
       my ($postscript_filename, $latex_filename, $num_columns) = @_;
       open(PSFILE, "<$postscript_filename");
       my $line;
       my $total_pages; # Total pages in document.
       my $seen_pages        = 0; # There are several %%Pages only the first is useful
       my $student_number    = 0; # Index of student we're working on.
       my @pages_in_student; # For each student his/her initial page count.
       my $max_pages = 0; # Pages in 'longest' student.
       my $page_number = 0;
       while ($line = <PSFILE>) {
   
    # Check for total pages (%%Pages:)
   
    if (($line =~ /^%%Pages:/) && (!$seen_pages)) {
       my @pageinfo = split(/ /,$line);
       $total_pages = $pageinfo[1];
       $seen_pages  = 1;
    }
    #  Check for %%Page: n m  $page_number will be the
    #  biggest of these until we see an endofstudent.
    #  Note that minipages generate spurious %Page: 1 1's so
    #  we only are looking for the largest n (n is page number at the
    #  bottom of the page, m the page number within the document.
    #
   
    if ($line =~ /^%%Page:/) {
       my @pageinfo = split(/ /, $line);
       if ($page_number < $pageinfo[1]) {
    $page_number = $pageinfo[1];
       }
    }
    #  ENDOFSTUDENTSTAMP - save the page_number, reset and, if necessary
    #                      udpate max_pages.
    #
    if ($line =~ /ENDOFSTUDENTSTAMP/) {
       $pages_in_student[$student_number] = $page_number;
       $student_number++;
   
       if ($page_number > $max_pages) {
    $max_pages = $page_number;
       }
       $page_number = 0;
     
    }
   
   
       }
       close(PSFILE);
   
       #  If 2 columns, max_pages must go to an even number of columns:
   
       &Apache::lonnet::logthis("Before 2 col adjust max-pages = $max_pages");
      
       if ($num_columns == 2) {
    if ($max_pages % 2) {
       $max_pages++;
    }
       }
       &Apache::lonnet::logthis("after adjust: $max_pages");
       
       #  Now rewrite the LaTex file, substituting our \special
       #  with an appropriate number of \newpage directives.
   
       my $outfilename = $latex_filename."temp";
   
       open(LATEXIN, "<$latex_filename");
       open(LATEXOUT, ">$outfilename");
   
   
       $student_number = 0; # first student...
   
       while (my $line = <LATEXIN>) {
    if ($line eq "\\special{ps:ENDOFSTUDENTSTAMP}\n") {
       # only end of student stamp if next line is ENDOFSTUDENTSTAMP:
   
   
       # End of student replace with 0 or more newpages.
       
       my $addlines = $max_pages - $pages_in_student[$student_number];
       &Apache::lonnet::logthis("student: $pages_in_student[$student_number] add: $addlines");
       while($addlines)  {
    print LATEXOUT '\pagebreak';
    $addlines--;
       }
       
       $student_number++;
       
    } else {
       print LATEXOUT $line;
    }
       }
   
       close(LATEXIN);
       close(LATEXOUT);
      rename($outfilename, $latex_filename);
   
   }
   
Removed from v.1.94  
changed lines
  Added in v.1.103

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>