--- loncom/interface/printout.pl 2006/04/08 07:06:35 1.96 +++ loncom/interface/printout.pl 2006/12/07 22:12:19 1.116 @@ -29,13 +29,14 @@ use lib '/home/httpd/lib/perl'; use LONCAPA::loncgi; use File::Path; use File::Basename; +use File::Copy; use IO::File; use Image::Magick; -use Apache::lonhtmlcommon; +use Apache::lonhtmlcommon(); use Apache::lonnet; -use Apache::loncommon; +use Apache::loncommon(); use Apache::lonlocal; -use Apache::lonmsg; +use Apache::lonmsg(); use LONCAPA::Enrollment; use strict; @@ -161,8 +162,8 @@ END } &Apache::lonlocal::get_language_handle(); &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 $texfile = $env{'cgi.'.$identifier.'.file'}; @@ -204,13 +205,12 @@ print "ReturnReturn $eps_f"; # Debugging - system("convert $not_eps $eps_f"); - #check is eps exist in prtspool - if(not -e $eps_f) { - for (my $i=0;$i<10000;$i++) { - if (-e $eps_f.'.'.$i) { - rename $eps_f.'.'.$i, $eps_f; - last; + # + # If the file is already an .eps or .ps file, + # We really just need to copy it from where it was to prtspool + # but with the spaces substituted to _'s. + # + my ($nsname,$path, $sext) = &fileparse($eps_f, qr/\.(ps|eps)/i); + if ($sext =~/ps$/i) { + # print "$not_eps is a postscript file. copy to $path\n"; + &File::Path::mkpath($path,0,0777); + #print("Made path: $path"); + #$not_eps =~ s/^\s+//; + #$not_eps =~ s/\s+$//; + #$not_eps =~ s/ /\__/g; + #print("Copying $not_eps to $eps_f\n"); + copy("$not_eps", "$eps_f"); + # print "Copy complete\n"; + } else { + + $eps_f .= '.eps'; # Just append the eps ext. + my $path=$eps_f; + $path =~ s/\/([^\/]+)\.eps$//; + # print "Final file path: $path "; # Debugging + &File::Path::mkpath($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) { @@ -455,7 +498,75 @@ foreach $texfile (@texfile) { "for $status_statement now Converting to PS", \%prog_state,$new_name_file); if (-e $new_name_file) { - print "

PDF output file (see link below)

\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); + # + # One last little hinky kinky thing. + # It's just possible that some fonts could not be maded + # at the resolution of the pdf print driver. + # In that case a file called missfont.log will have been + # created that will contain the commands that were attempted + # to create the missing fonts. If we basically + # take all the 8000 strings in that file, and + # replace them with 600 (the ljfour resolution) + # run the commands in that file and redvips, + # we'll be able to print the missing glyphs at 600dpi. + # + # Supposedly it is possible to tune TeX/Metafont to do this + # right but I failed to get that to work when following the + # docs at the tug site, hence this rather kludgey fix. + # + # We make the (I think) reasonable assumption that + # missing glyphs won't change the pagination and I think + # this is true because TeX/dvips will leave a space + # instead of these glyphs based on the font metrics + # (fancy way to say there will be a blank the size of the missing + # glyphs). + # + my $print_directory = dirname($name_file); + my $missfonts_file = $print_directory."/missfont.log"; + #print("
Missing fonts file is: $missfonts_file"); + if (-e $missfonts_file) { + #print("
Missing fonts file exists\n"); + &create_missing_fonts($missfonts_file); + unlink($missfonts_file, \%prog_state); + &busy_wait_command("$comma $name_file 1>dev/null 2>/dev/null", + "for $status_statement dvips generated missing fonts", + \%prog_state, $new_name_file); + } + + # + print "\n

PDF output file (see link below)

\n"; $new_name_file =~ m/^(.*)\./; my $ps_file = my $tempo_file = $1.'temporar.ps'; my $pdf_file = $1.'.pdf'; @@ -528,7 +639,69 @@ foreach $texfile (@texfile) { &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null", "for $status_statement now Converting to PS", \%prog_state,$new_name_file); + # + # One last little hinky kinky thing. + # It's just possible that some fonts could not be maded + # at the resolution of the pdf print driver. + # In that case a file called missfont.log will have been + # created that will contain the commands that were attempted + # to create the missing fonts. If we basically + # take all the 8000 strings in that file, and + # replace them with 600 (the ljfour resolution) + # run the commands in that file and redvips, + # we'll be able to print the missing glyphs at 600dpi. + # + # Supposedly it is possible to tune TeX/Metafont to do this + # right but I failed to get that to work when following the + # docs at the tug site, hence this rather kludgey fix. + # + # We make the (I think) reasonable assumption that + # missing glyphs won't change the pagination and I think + # this is true because TeX/dvips will leave a space + # instead of these glyphs based on the font metrics + # (fancy way to say there will be a blank the size of the missing + # glyphs). + # + my $print_directory = dirname($name_file); + my $missfonts_file = $print_directory."/missfont.log"; + #print("
Missing fonts file is: $missfonts_file"); + if (-e $missfonts_file) { + #print("
Missing fonts file exists\n"); + &create_missing_fonts($missfonts_file); + unlink($missfonts_file, \%prog_state); + &busy_wait_command("$comma $name_file 1>dev/null 2>/dev/null", + "for $status_statement dvips generated missing fonts", + \%prog_state, $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 "
"; $new_name_file =~ m/^(.*)\./; my $ps_file = my $tempo_file = $1.'temporar.ps'; @@ -607,8 +780,9 @@ if ($number_of_files>1) { print "
A ZIP file of all the PDFs."; } if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); } - +print(&Apache::loncommon::end_page()); my $done; + sub REAPER { $done=1; } @@ -638,6 +812,186 @@ sub busy_wait_command { close(CMD); } +# Repagninate +# What we need to do: +# - Count the number of pages in each student. +# - Rewrite the latex file replacing the \specials that +# mark the end of student with an appropriate number of newlines. +# parameters: +# psfile - Postscript filename +# latexfile - LaTeX filename +# columns - number of columns. +sub repaginate { + + # We will try to do this in 2 passes through the postscript since + # the postscript is potentially large, to do 2 passes, the first pass + # must be able to calculate the total number of document pages so that + # at the beginning of the second pass we already know how to replace + # %%Pages: + + # Figure out + # 1. Number of pages in the document + # 2. Maximum number of pages in a student + # 3. Number of pages in each student. + + my ($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 = ) { + + # 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 $line = ) { + if ($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, $latex_filename); + +} + +# +# Create missing fonts given a latex missfonts.log file. +# This file will have lines like: +# +# mktexpk --mfmode ljfour --bdpi 8000 --mag 1+0/8000 --dpi 8000 tcrm0500 +# +# We want to execute those lines with the 8000's changed to 600's +# in order to match the resolution of the ljfour printer. +# Of course if some wiseguy has changed the default printer from ljfour +# in the dvips's config.ps file that will break so we'll also +# ensure that --mfmode is ljfour. +# +sub create_missing_fonts { + my ($fontfile, $state) = @_; + # Open and read in the font file..we'll read it into the array + # font_commands. + # + my $font_handle = IO::File->new($fontfile); + my @font_commands = <$font_handle>; + + + # Now process each command replacing the appropriate 8000's with + # 600's ensuring that font names with 8000's in them are not corrupted. + # and if the --mfmode is not ljfour we turn it into ljfour. + # Then we execute the command. + # + + foreach my $command (@font_commands) { + #print("
Raw command: $command"); + $command =~ s/ 8000/ 600/g; # dpi directives. + $command =~ s/\/8000/\/600/g; # mag directives. + #print("
After dpi replacements: $command"); + + my @cmdarray = split(/ /,$command); + for (my $i =0; $i < scalar(@cmdarray); $i++) { + if ($cmdarray[$i] eq '--mfmode') { + $cmdarray[$i+1] = "ljfour"; + } + } + #print("
before reassembly : (@cmdarray)"); + $command = join(" ", (@cmdarray)); + #print("
Creating fonts via command: $command"); + &busy_wait_command("$command 1>dev/null 2>/dev/null", + "Creating missing font", + $state, $command); + + } +}