version 1.94.2.1, 2006/04/24 21:31:03
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version 1.101, 2006/06/12 18:05:02
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# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
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BEGIN { |
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eval "use Apache2::compat();"; |
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}; |
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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; |
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use strict; |
use strict; |
Line 164 END
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Line 161 END
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} |
} |
&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','',''); |
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print $bodytag; |
print(&Apache::loncommon::start_page('Creating PDF')); |
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my $identifier = $ENV{'QUERY_STRING'}; |
my $identifier = $ENV{'QUERY_STRING'}; |
my $texfile = $env{'cgi.'.$identifier.'.file'}; |
my $texfile = $env{'cgi.'.$identifier.'.file'}; |
Line 358 foreach $texfile (@texfile) {
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Line 355 foreach $texfile (@texfile) {
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\%prog_state,$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 $status_statement First LaTeX of file for table of contents", |
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\%prog_state,$dvi_file); |
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&busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null", |
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"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 476 foreach $texfile (@texfile) {
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Line 476 foreach $texfile (@texfile) {
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"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 $new_name_file) { |
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&repaginate_postscript($new_name_file); |
print "<h1>PDF output file (see link below)</h1>\n"; |
print "<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'; |
Line 550 foreach $texfile (@texfile) {
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Line 551 foreach $texfile (@texfile) {
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"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 $new_name_file) { |
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&repaginate_postscript($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 = $1.'temporar.ps'; |
Line 628 if ($number_of_files>1) {
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Line 630 if ($number_of_files>1) {
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print "<br /> A <a href=\"$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); } |
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print(&Apache::loncommon::end_page()); |
my $done; |
my $done; |
sub REAPER { |
sub REAPER { |
$done=1; |
$done=1; |
Line 639 sub busy_wait_command {
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Line 641 sub busy_wait_command {
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$SIG{CHLD} = \&REAPER; |
$SIG{CHLD} = \&REAPER; |
$done=0; |
$done=0; |
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print("<p> Doing : <tt>$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 658 sub busy_wait_command {
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Line 661 sub busy_wait_command {
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$SIG{CHLD}='IGNORE'; |
$SIG{CHLD}='IGNORE'; |
close(CMD); |
close(CMD); |
} |
} |
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print("<p> End</p>"); |
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# Repagninate a postscript file. |
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# What we need to do: |
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# - Count the number of pages in each student. |
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# - Add pages between each student so that each student's output is |
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# the maximum number of pages. |
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# |
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sub repaginate_postscript { |
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# We will try to do this in 2 passes through the postscript since |
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# the postscript is potentially large, to do 2 passes, the first pass |
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# must be able to calculate the total number of document pages so that |
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# at the beginning of the second pass we already know how to replace |
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# %%Pages: |
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# Figure out |
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# 1. Number of pages in the document |
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# 2. Maximum number of pages in a student |
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# 3. Number of pages in each student. |
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my ($postscript_filename) = @_; |
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open(PSFILE, "<$postscript_filename"); |
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my $line; |
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my $total_pages; # Total pages in document. |
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my $seen_pages = 0; # There are several %%Pages only the first is useful |
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my $student_number = 0; # Index of student we're working on. |
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my @pages_in_student; # For each student his/her initial page count. |
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my $max_pages = 0; # Pages in 'longest' student. |
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while ($line = <PSFILE>) { |
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my $page_number = 0; |
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# Check for total pages (%%Pages:) |
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if (($line =~ /^%%Pages:/) && (!$seen_pages)) { |
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my @pageinfo = split(/ /,$line); |
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$total_pages = $pageinfo[1]; |
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$seen_pages = 1; |
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} |
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# Check for %%Page: n m $page_number will be the |
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# biggest of these until we see an endofstudent. |
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# Note that minipages generate spurious %Page: 1 1's so |
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# we only are looking for the largest n (n is page number at the |
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# bottom of the page, m the page number within the document. |
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# |
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if ($line =~ /^%%Page:/) { |
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my @pageinfo = split(/ /, $line); |
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if ($page_number < $pageinfo[1]) { |
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$page_number = $pageinfo[1]; |
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} |
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} |
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# ENDOFSTUDENTSTAMP - save the page_number, reset and, if necessary |
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# udpate max_pages. |
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# |
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if ($line =~ /ENDOFSTUDENTSTAMP/) { |
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$pages_in_student[$student_number] = $page_number; |
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$student_number++; |
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if ($page_number > $max_pages) { |
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$max_pages = $page_number; |
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} |
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$page_number = 0; |
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} |
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} |
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close(PSFILE); |
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# Figure out how many total pages we need to add and adjust the |
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# $total_pages accordingly: |
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# |
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my $add_pages = 0; |
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for (my $i =0; $i < $student_number; $i++) { |
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$add_pages += ($max_pages - $pages_in_student[$i]); |
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} |
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# If we don't need to add any pages, we're done! |
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# You might think that we don't need to do anything if |
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# there are no pages to add, however we still need to at least strip out |
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# the ENDOFSTUDENTSTAMP stamps...as they are not postscript comments!! |
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# Now pass 2; we're going to write the new. ps file: |
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# - Modify its first %%Pages: line so that it has the new correct number of |
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# pages |
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# - For each student, insert as many blank pages as needed (and |
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# associated structured comments) to expand a student out to |
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# max_pages pages. |
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# - Remove the ENDOFSTUDENTSTAMP lines. |
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# |
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$total_pages += $add_pages; |
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$student_number = 0; |
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open(PSFILE, "<$postscript_filename"); |
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open(PSOFILE,">$postscript_filename"."repaginating"); # unique if original fname is. |
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$seen_pages = 0; # Reset seen %%Pages flag... |
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while ($line = <PSFILE>) { |
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if (($line =~ /^%%Pages:/) && (!$seen_pages)) { |
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$line = "%%Pages: $total_pages\n"; |
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$seen_pages = 1; |
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} |
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if ($line =~ /ENDOFSTUDENTSTAMP/) { |
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$add_pages = ($max_pages - $pages_in_student[$student_number]); |
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$line = "\n"; |
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my $last_student_page = $pages_in_student[$student_number]; |
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my $last_total_page = $student_number*$max_pages + $last_student_page; |
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while ($add_pages) { |
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$line .= "%Page: $last_student_page $last_total_page\n"; |
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my $bop = $last_total_page-1; |
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$line .= "TeXDict begin $last_student_page $bop bop eop end\n"; |
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$last_student_page++; |
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$last_total_page++; |
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$add_pages--; |
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} |
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$student_number++; |
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} |
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print PSOFILE ($line); |
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} |
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close(PSOFILE); |
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close(PSFILE); |
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rename($postscript_filename."repaginating", $postscript_filename); |
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} |
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