--- loncom/interface/printout.pl 2005/11/15 20:53:06 1.93
+++ loncom/interface/printout.pl 2006/06/12 11:21:07 1.100
@@ -25,20 +25,17 @@
# http://www.lon-capa.org/
#
-BEGIN {
- eval "use Apache2::compat();";
-};
use lib '/home/httpd/lib/perl';
use LONCAPA::loncgi;
use File::Path;
use File::Basename;
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;
@@ -164,8 +161,7 @@ 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'};
@@ -186,6 +182,8 @@ END
@names_pack=split(/_ENDPERSON_/,$student_names);
}
+print "Return to last resource.
";
+
my $figfile = $texfile;
$figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
my $duefile = $texfile;
@@ -201,6 +199,7 @@ END
my $noteps;
my %prog_state;
if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80'); }
+ print('
');
foreach my $not_eps (@content_of_file) {
chomp($not_eps);
if ($not_eps ne '') {
@@ -239,15 +238,36 @@ END
$done_conversion{$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) {
+ # 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, $eps_f;
+ rename($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) {
@@ -269,7 +289,6 @@ END
my $ind=-1;
my %prog_state;
-print "Return to last resource.
";
if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Print Status','Class Print Status',$number_of_files,'inline','80'); }
print "
";
my $num_files = @texfile;
@@ -335,7 +354,10 @@ foreach $texfile (@texfile) {
\%prog_state,$dvi_file);
if ($tableofcontents eq 'yes') {
&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);
} #to create table of contents
my $idxname=$name_file;
@@ -453,6 +475,7 @@ foreach $texfile (@texfile) {
"for $status_statement now Converting to PS",
\%prog_state,$new_name_file);
if (-e $new_name_file) {
+ &repaginate_postscript($new_name_file);
print "
PDF output file (see link below)
\n";
$new_name_file =~ m/^(.*)\./;
my $ps_file = my $tempo_file = $1.'temporar.ps';
@@ -527,6 +550,7 @@ foreach $texfile (@texfile) {
"for $status_statement now Converting to PS",
\%prog_state,$new_name_file);
if (-e $new_name_file) {
+ &repaginate_postscript($new_name_file);
print "
";
$new_name_file =~ m/^(.*)\./;
my $ps_file = my $tempo_file = $1.'temporar.ps';
@@ -605,7 +629,7 @@ if ($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 {
$done=1;
@@ -637,5 +661,127 @@ sub busy_wait_command {
}
+# Repagninate a postscript file.
+# What we need to do:
+# - Count the number of pages in each student.
+# - Add pages between each student so that each student's output is
+# the maximum number of pages.
+#
+sub repaginate_postscript {
+
+ # We will try to do this in 2 passes through the postscript since
+ # the postscript is potentially large, to do 2 passes, the first pass
+ # must be able to calculate the total number of document pages so that
+ # at the beginning of the second pass we already know how to replace
+ # %%Pages:
+
+ # Figure out
+ # 1. Number of pages in the document
+ # 2. Maximum number of pages in a student
+ # 3. Number of pages in each student.
+
+ my ($postscript_filename) = @_;
+ 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 $max_pages = 0; # Pages in 'longest' student.
+ while ($line = ) {
+ my $page_number = 0;
+
+ # Check for total pages (%%Pages:)
+
+ if (($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);
+
+ # Figure out how many total pages we need to add and adjust the
+ # $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!!
+
+
+ # 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;
+ $student_number = 0;
+
+ open(PSFILE, "<$postscript_filename");
+ open(PSOFILE,">$postscript_filename"."repaginating"); # unique if original fname is.
+ $seen_pages = 0; # Reset seen %%Pages flag...
+ while ($line = ) {
+ 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";
+ my $last_student_page = $pages_in_student[$student_number];
+ my $last_total_page = $student_number*$max_pages + $last_student_page;
+ while ($add_pages) {
+ $line .= "%Page: $last_student_page $last_total_page\n";
+ my $bop = $last_total_page-1;
+ $line .= "TeXDict begin $last_student_page $bop bop eop end\n";
+ $last_student_page++;
+ $last_total_page++;
+ $add_pages--;
+ }
+ $student_number++;
+ }
+ print PSOFILE $line;
+ }
+ close PSOFILE;
+ close PSFILE;
+
+ rename($postscript_filename."repaginating", $postscript_filename);
+
+}