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Diff for /loncom/interface/printout.pl between versions 1.97 and 1.113

version 1.97, 2006/04/20 02:24:08 version 1.113, 2006/11/13 11:18:46
Line 29  use lib '/home/httpd/lib/perl'; Line 29  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 File::Copy;
 use IO::File;  use IO::File;
 use Image::Magick;  use Image::Magick;
 use Apache::lonhtmlcommon();  use Apache::lonhtmlcommon();
Line 161  END Line 162  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');
  print(&Apache::loncommon::start_page('Creating PDF'));  
     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 203  print "<a href=\"$backref\"><b>Return</b Line 205  print "<a href=\"$backref\"><b>Return</b
       foreach my $not_eps (@content_of_file) {        foreach my $not_eps (@content_of_file) {
   chomp($not_eps);    chomp($not_eps);
   if ($not_eps ne '') {    if ($not_eps ne '') {
       # print "Converting $not_eps"; # Debugging.         # print "Converting $not_eps"; # Debugging.
               my $status_statement='EPS picture for '.$not_eps;                my $status_statement='EPS picture for '.$not_eps;
       # print "$status_statement\n";        # print "$status_statement\n";
       $not_eps=~s|\/\.\/|\/|g;        $not_eps=~s|\/\.\/|\/|g;
       my $eps_f = $not_eps;        my $eps_f = $not_eps;
       # $eps_f =~ s/\.[^.]*$/\.eps/i;        # $eps_f =~ s/\.[^.]*$/\.eps/i;
       $eps_f .= '.eps'; # Just append the eps ext.  
       if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {        if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
                   $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;                    $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
   $eps_f = '/home/httpd/prtspool/'.$eps_f;    $eps_f = '/home/httpd/prtspool/'.$eps_f;
Line 221  print "<a href=\"$backref\"><b>Return</b Line 222  print "<a href=\"$backref\"><b>Return</b
   $eps_f = '/home/httpd/prtspool/'.$1.'/'.$2;    $eps_f = '/home/httpd/prtspool/'.$1.'/'.$2;
       }        }
       $eps_f  =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX.        $eps_f  =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX.
       my $path=$eps_f;        # 
       $path =~ s/\/([^\/]+)\.eps$//;        # If the file is already an .eps or .ps file,
       # print "Final file path: $path "; # Debugging        # We really just need to copy it from where it was to prtspool
       File::Path::mkpath($path,0,0777);        # but with the spaces substituted to _'s.
       $not_eps =~ s/^\s+//;        #
       $not_eps =~ s/\s+$//;        my ($nsname,$path, $sext) = fileparse($eps_f, qr/\.(ps|eps)/i);
       $not_eps =~ s/ /\\ /g;        if ($sext =~/ps$/i) {
       if ( exists($done_conversion{$not_eps})) { next; }    # print "$not_eps is a postscript file. copy to $path\n";
       if ($advanced_role) {    File::Path::mkpath($path,0,0777);
   my $prettyname=$not_eps;      print "Made path: $path";
   $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;  #  $not_eps =~ s/^\s+//;
   $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;  #  $not_eps =~ s/\s+$//;
   &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Converting to EPS '.$prettyname);  #  $not_eps =~ s/ /\__/g;
       }    print "Copying $not_eps to $eps_f\n";
       $done_conversion{$not_eps}=1;    copy("$not_eps", "$eps_f"); 
       # print "Converting $not_eps -> $eps_f"; # Debugging    # print "Copy complete\n";
       system("convert $not_eps $eps_f");        } else {
               #check is eps exist in prtspool        
               if(not -e $eps_f) {    $eps_f .= '.eps'; # Just append the eps ext.
   for (my $i=0;$i<10000;$i++) {    my $path=$eps_f;
       if (-e $eps_f.'.'.$i) {    $path =~ s/\/([^\/]+)\.eps$//;
   rename $eps_f.'.'.$i, $eps_f;    # print "Final file path: $path "; # Debugging
   last;    File::Path::mkpath($path,0,0777);
     $not_eps =~ s/^\s+//;
     $not_eps =~ s/\s+$//;
     $not_eps =~ s/ /\\ /g;
     if ( exists($done_conversion{$not_eps})) { next; }
     if ($advanced_role) {
         my $prettyname=$not_eps;
         $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
         $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;
         &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
       'Converting to EPS '.$prettyname);
     }
     $done_conversion{$not_eps}=1;
     # print "Converting $not_eps -> $eps_f"; # Debugging
     system("convert $not_eps $eps_f");
     # check is eps exist in prtspool
     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++) {
     if (-e $eps_f.'.'.$i) {
         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;
     }
         }
     }
     
     # 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 454  foreach $texfile (@texfile) { Line 498  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, $name_file);
         if ($tableofcontents eq 'yes') {
     &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, $name_file);
         }
         if ($tableofindex eq 'yes') {
     my $idxname = $latex_file;
     $idxname =~ s/\.tex$/\.idx/;
     &busy_wait_command("makindex $idxname",
        "Re-creating index file",
        \%prog_state, $idxname);
     &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
        "for $status_statement now Recreting index (latex)",
        \%prog_state, $dvi_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 528  foreach $texfile (@texfile) { Line 604  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, $name_file);
         if ($tableofcontents eq 'yes') {
     &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, $name_file);
         }
         if ($tableofindex eq 'yes') {
     my $idxname = $latex_file;
     $idxname    =~ s/\.tex$/\.idx/;
     &busy_wait_command("makeindex $idxname",
        "Re-creating index file",
        \%prog_state, $idxname);
     &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
        "for $status_statement now Recreting index (latex)",
        \%prog_state, $dvi_file);
         }
         &busy_wait_command("$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 = $1.'temporar.ps';
Line 608  if ($number_of_files>1) { Line 711  if ($number_of_files>1) {
 if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }  if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
 print(&Apache::loncommon::end_page());  print(&Apache::loncommon::end_page());
 my $done;  my $done;
   
 sub REAPER {  sub REAPER {
     $done=1;      $done=1;
 }  }
Line 637  sub busy_wait_command { Line 741  sub busy_wait_command {
     close(CMD);      close(CMD);
 }  }
   
   #  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 @pages_in_student; # For each student his/her initial page count.
       my $max_pages = 0; # Pages in 'longest' student.
       my $page_number = 0;
       &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, 
     &mt("Counting pages for student: [_1]",1));
   
       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 = $pageinfo[1];
       } elsif ($pageinfo[2] ne 1) {
    #  current page count reset, and it's not because of a 
    #    minipage 
    # - save the page_number, reset and, if necessary
    #    update max_pages.
    push(@pages_in_student, $page_number);
    &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, 
         &mt("Counting pages for student: [_1]", scalar(@pages_in_student)));
    if ($page_number > $max_pages) {
       $max_pages = $page_number;
    }
    $page_number = $pageinfo[1];
       }
    }
   
   
       }
       # file ended so one more student
       push(@pages_in_student, $page_number);
       &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, 
     &mt("Counting pages for student: [_1]",scalar(@pages_in_student)));
       if ($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:
   
      
       if ($num_columns == 2) {
    if ($max_pages % 2) {
       $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");
   
   
       my $student_number    = 0; # Index of student we're working on.
       &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, 
     "Repaginating student ".$student_number+1);
   
       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];
       while($addlines)  {
    print LATEXOUT '\clearpage \strut \clearpage';
   
    $addlines--;
       }
       
       $student_number++;
       &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, 
     "Repaginating student ".$student_number+1);
       
    } else {
       print LATEXOUT $line;
    }
       }
   
       close(LATEXIN);
       close(LATEXOUT);
       rename($outfilename, $latex_filename);
   
   }
   
Removed from v.1.97  
changed lines
  Added in v.1.113

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