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Diff for /loncom/interface/printout.pl between versions 1.100 and 1.112

version 1.100, 2006/06/12 11:21:07 version 1.112, 2006/11/06 11:40:02
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, $sext) = fileparse($not_eps, 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;  #  $not_eps =~ s/^\s+//;
   $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;  #  $not_eps =~ s/\s+$//;
   $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;  #  $not_eps =~ s/ /\__/g;
   &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,'Converting to EPS '.$prettyname);    # print "Copying $not_eps to $eps_f\n";
       }    copy("$not_eps", "$eps_f"); 
       $done_conversion{$not_eps}=1;    # print "Copy complete\n";
       # print "Converting $not_eps -> $eps_f"; # Debugging        } else {
       system("convert $not_eps $eps_f");        
               # check is eps exist in prtspool    $eps_f .= '.eps'; # Just append the eps ext.
               if (not -e $eps_f) {    my $path=$eps_f;
   # converting an animated gif creates either:    $path =~ s/\/([^\/]+)\.eps$//;
                   # anim.gif.eps.0    # print "Final file path: $path "; # Debugging
                   # or    File::Path::mkpath($path,0,0777);
                   # anim.gif-0.eps    $not_eps =~ s/^\s+//;
   for (my $i=0;$i<10000;$i++) {    $not_eps =~ s/\s+$//;
       if (-e $eps_f.'.'.$i) {    $not_eps =~ s/ /\\ /g;
   rename($eps_f.'.'.$i, $eps_f);    if ( exists($done_conversion{$not_eps})) { next; }
   last;    if ($advanced_role) {
       }        my $prettyname=$not_eps;
       my $anim_eps = $eps_f;        $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
       $anim_eps =~ s/(\.[^.]*)\.eps$/$1-$i\.eps/i;        $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;
       if (-e $anim_eps) {        &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
   rename($anim_eps, $eps_f);      'Converting to EPS '.$prettyname);
   last;    }
     $done_conversion{$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    # imagemagick 6.2.0-6.2.7 fails to properly handle
               # convert anim.gif anim.gif.eps    # convert anim.gif anim.gif.eps
               # it creates anim.eps instead.     # it creates anim.eps instead. 
               if (not -e $eps_f) {    if (not -e $eps_f) {
   my $eps_f2 = $eps_f;        my $eps_f2 = $eps_f;
   $eps_f2 =~ s/\.[^.]*\.eps$/\.eps/i;        $eps_f2 =~ s/\.[^.]*\.eps$/\.eps/i;
   if(-e $eps_f2) {        if(-e $eps_f2) {
       rename($eps_f2,$eps_f);    rename($eps_f2,$eps_f);
         }
   }    }
       }        }
   
Line 475  foreach $texfile (@texfile) { Line 497  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 $new_name_file) {
       &repaginate_postscript($new_name_file);        my $latex_file = $name_file;
       print "<h1>PDF output file (see link below)</h1>\n";        $latex_file    =~ s/\.dvi/\.tex/;
         &repaginate($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 550  foreach $texfile (@texfile) { Line 603  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 $new_name_file) {
       &repaginate_postscript($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 = $1.'temporar.ps';
Line 631  if ($number_of_files>1) { Line 710  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 660  sub busy_wait_command { Line 740  sub busy_wait_command {
     close(CMD);      close(CMD);
 }  }
   
   #  Repagninate
 #  Repagninate a postscript file.  
 #  What we need to do:  #  What we need to do:
 #   - Count the number of pages in each student.  #   - Count the number of pages in each student.
 #   - Add pages between each student so that each student's output is  #   - Rewrite the latex file replacing the \specials that
 #     the maximum number of pages.  #     mark the end of student with an appropriate number of newlines.
 #     #   parameters:
 sub repaginate_postscript {  #     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      # 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      # the postscript is potentially large, to do 2 passes, the first pass
Line 680  sub repaginate_postscript { Line 762  sub repaginate_postscript {
     #    2. Maximum number of pages in a student      #    2. Maximum number of pages in a student
     #    3. Number of pages in each student.      #    3. Number of pages in each student.
   
     my ($postscript_filename) = @_;      my ($postscript_filename, $latex_filename, $num_columns) = @_;
     open(PSFILE, "<$postscript_filename");      open(PSFILE, "<$postscript_filename");
     my $line;      my $line;
     my $total_pages; # Total pages in document.      my $total_pages; # Total pages in document.
     my $seen_pages        = 0; # There are several %%Pages only the first is useful      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 @pages_in_student; # For each student his/her initial page count.
     my $max_pages = 0; # Pages in 'longest' student.      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 ($line = <PSFILE>) {      while ($line = <PSFILE>) {
  my $page_number = 0;  
   
  # Check for total pages (%%Pages:)   # Check for total pages (%%Pages:)
   
  if (($line =~ "^%%Pages:") && (!$seen_pages)) {   if (($line =~ /^%%Pages:/) && (!$seen_pages)) {
     my @pageinfo = split(/ /,$line);      my @pageinfo = split(/ /,$line);
     $total_pages = $pageinfo[1];      $total_pages = $pageinfo[1];
     $seen_pages  = 1;      $seen_pages  = 1;
Line 704  sub repaginate_postscript { Line 788  sub repaginate_postscript {
  #  we only are looking for the largest n (n is page number at the   #  we only are looking for the largest n (n is page number at the
  #  bottom of the page, m the page number within the document.   #  bottom of the page, m the page number within the document.
  #   #
  if ($line =~ "^%%Page:") {  
    if ($line =~ /^%%Page:/) {
     my @pageinfo = split(/ /, $line);      my @pageinfo = split(/ /, $line);
     if ($page_number < $pageinfo[1]) {      if ($page_number < $pageinfo[1]) {
  $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 = $pageinfo[1];
     }      }
  }   }
  #  ENDOFSTUDENTSTAMP - save the page_number, reset and, if necessary  
  #                      udpate max_pages.  
  #  
  if ($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);      # 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;
           
     #   Figure out how many total pages we need to add and adjust the      close(PSFILE);
     #   $total_pages accordingly:  
     #  
     my $add_pages  = 0;  
     for (my $i =0; $i < $student_number; $i++) {  
  $add_pages += ($max_pages - $pages_in_student[$i]);  
     }      
     #  If we don't need to add any pages, we're done!  
     #  You  might think that we don't need to do anything if   
     #  there are no pages to add, however we still need to at least strip out  
     #   the ENDOFSTUDENTSTAMP stamps...as they are not postscript comments!!  
   
         #  If 2 columns, max_pages must go to an even number of columns:
     #  Now pass 2; we're going to write the new. ps file:  
     #  -  Modify its first %%Pages: line so that it has the new correct number of  
     #     pages  
     #  -  For each student, insert as many blank pages as needed (and  
     #     associated structured comments) to expand a  student out to  
     #     max_pages pages.  
     #  -  Remove the ENDOFSTUDENTSTAMP lines.  
     #  
   
     $total_pages += $add_pages;     
     $student_number = 0;      if ($num_columns == 2) {
     if ($max_pages % 2) {
    open(PSFILE, "<$postscript_filename");      $max_pages++;
     open(PSOFILE,">$postscript_filename"."repaginating"); # unique if original fname is.  
     $seen_pages = 0; # Reset seen %%Pages flag...  
     while ($line = <PSFILE>) {  
  if (($line =~ "^%%Pages:") && (!$seen_pages)) {  
     $line = "%%Pages: $total_pages\n";  
     $seen_pages = 1;  
  }   }
  if ($line =~ "ENDOFSTUDENTSTAMP") {      }
     $add_pages = ($max_pages - $pages_in_student[$student_number]);      
     $line = "\n";      #  Now rewrite the LaTex file, substituting our \special
     my $last_student_page = $pages_in_student[$student_number];      #  with an appropriate number of \newpage directives.
     my $last_total_page   = $student_number*$max_pages + $last_student_page;  
     while ($add_pages) {      my $outfilename = $latex_filename."temp";
  $line .= "%Page: $last_student_page $last_total_page\n";  
  my $bop = $last_total_page-1;      open(LATEXIN, "<$latex_filename");
  $line .= "TeXDict begin $last_student_page $bop bop eop end\n";      open(LATEXOUT, ">$outfilename");
  $last_student_page++;  
  $last_total_page++;  
  $add_pages--;      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++;      $student_number++;
       &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state, 
     "Repaginating student ".$student_number+1);
       
    } else {
       print LATEXOUT $line;
  }   }
  print PSOFILE $line;  
     }      }
     close PSOFILE;  
     close PSFILE;  
   
     rename($postscript_filename."repaginating", $postscript_filename);      close(LATEXIN);
       close(LATEXOUT);
       rename($outfilename, $latex_filename);
   
 }  }
   
Removed from v.1.100  
changed lines
  Added in v.1.112

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