--- loncom/interface/lonprintout.pm	2004/02/19 19:35:06	1.270.2.1
+++ loncom/interface/lonprintout.pm	2004/02/03 21:57:48	1.273
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Printout
 #
-# $Id: lonprintout.pm,v 1.270.2.1 2004/02/19 19:35:06 albertel Exp $
+# $Id: lonprintout.pm,v 1.273 2004/02/03 21:57:48 sakharuk Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -647,20 +647,6 @@ sub path_to_problem {
     return '{\small\noindent\verb|'.$newurlp.'|\vskip 0 mm}';
 }
 
-sub recalcto_mm {
-    my $textwidth=shift;
-    my $LaTeXwidth;
-    if ($textwidth=~/(\d+\.?\d*)\s*cm/) {
-	$LaTeXwidth = $1*10;
-    } elsif ($textwidth=~/(\d+\.?\d*)\s*mm/) {
-	$LaTeXwidth = $1;
-    } elsif ($textwidth=~/(\d+\.?\d*)\s*in/) {
-	$LaTeXwidth = $1*25.4;
-    }
-    $LaTeXwidth.=' mm';
-    return $LaTeXwidth;
-}
-
 sub output_data {
     my ($r,$helper,$rparmhash) = @_;
     my %parmhash = %$rparmhash;
@@ -710,7 +696,17 @@ ENDPART
     }
     my ($textwidth,$textheight,$oddoffset,$evenoffset) = &page_format($papersize,$laystyle,$numberofcolumns);
     my $assignment =  $ENV{'form.assignment'};
-    my $LaTeXwidth=&recalcto_mm($textwidth);
+    my $LaTeXwidth; 
+    if ($textwidth=~/(\d+\.?\d*)\s*cm/) {
+	$LaTeXwidth = $1*10;
+    } elsif ($textwidth=~/(\d+\.?\d*)\s*mm/) {
+	$LaTeXwidth = $1;
+    } elsif ($textwidth=~/(\d+\.?\d*)\s*in/) {
+	$LaTeXwidth = $1*25.4;
+    }
+    $LaTeXwidth.=' mm';
+    my @print_array=();
+    
     if ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'current_document') {
       #-- single document - problem, page, html, xml, ...
 	my $currentURL;
@@ -737,12 +733,7 @@ ENDPART
 		}
 		my %form;
 		$form{'grade_target'}='tex';
-		if ($helper->{'VARS'}->{'pagesize.width'}=~/\d+/ &&
-                    $helper->{'VARS'}->{'pagesize.widthunit'}=~/\w+/) {
-		    $form{'textwidth'}=&recalcto_mm($helper->{'VARS'}->{'pagesize.width'}.' '.$helper->{'VARS'}->{'pagesize.widthunit'});
-		} else {
-		    $form{'textwidth'}=$LaTeXwidth;
-		}
+		$form{'textwidth'}=$LaTeXwidth;	
 		$form{'problem_split'}=$parmhash{'problem_stream_switch'};
 		$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
 		if ($helper->{'VARS'}->{'curseed'}) {
@@ -752,7 +743,7 @@ ENDPART
 		&Apache::lonnet::appenv(%moreenv);
 		&Apache::lonnet::delenv('form.counter');
 		&Apache::lonxml::init_counter();
-		$texversion.=&Apache::lonnet::ssi($currentURL,%form);
+		$texversion=&Apache::lonnet::ssi($currentURL,%form);
 		&Apache::lonnet::delenv('form.counter');
 		&Apache::lonnet::delenv('request.filename');
 	    }
@@ -807,12 +798,7 @@ ENDPART
 		    if ($helper->{'VARS'}->{'ANSWER_TYPE'} ne 'only') {
 			my %form;
 			$form{'grade_target'}='tex';
-			if ($helper->{'VARS'}->{'pagesize.width'}=~/\d+/ &&
-			    $helper->{'VARS'}->{'pagesize.widthunit'}=~/\w+/) {
-			    $form{'textwidth'}=&recalcto_mm($helper->{'VARS'}->{'pagesize.width'}.' '.$helper->{'VARS'}->{'pagesize.widthunit'});
-			} else {
-			    $form{'textwidth'}=$LaTeXwidth;
-			}
+			$form{'textwidth'}=$LaTeXwidth;
 			$form{'problem_split'}=$parmhash{'problem_stream_switch'};
 			$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
 			$form{'rndseed'}=$rndseed;
@@ -858,12 +844,7 @@ ENDPART
 	} elsif ($currentURL=~/\/smppg$/) { 
 		my %form;
 		$form{'grade_target'}='tex';
-		if ($helper->{'VARS'}->{'pagesize.width'}=~/\d+/ &&
-                    $helper->{'VARS'}->{'pagesize.widthunit'}=~/\w+/) {
-		    $form{'textwidth'}=&recalcto_mm($helper->{'VARS'}->{'pagesize.width'}.' '.$helper->{'VARS'}->{'pagesize.widthunit'});
-		} else {
-		    $form{'textwidth'}=$LaTeXwidth;
-		}	
+		$form{'textwidth'}=$LaTeXwidth;	
 		$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
 		my $texversion=&Apache::lonnet::ssi($currentURL,%form);
 		$result .= $texversion;
@@ -885,12 +866,7 @@ ENDPART
         #-- produce an output string
 	my %form=();	   
 	$form{'grade_target'}='tex';
-	if ($helper->{'VARS'}->{'pagesize.width'}=~/\d+/ &&
-	    $helper->{'VARS'}->{'pagesize.widthunit'}=~/\w+/) {
-	    $form{'textwidth'}=&recalcto_mm($helper->{'VARS'}->{'pagesize.width'}.' '.$helper->{'VARS'}->{'pagesize.widthunit'});
-	} else {
-	    $form{'textwidth'}=$LaTeXwidth;
-	}
+	$form{'textwidth'}=$LaTeXwidth;
 	$form{'problem_split'}=$parmhash{'problem_stream_switch'};
 	$form{'latex_type'}=$helper->{'VARS'}->{'LATEX_TYPE'};
 	my $flag_latex_header_remove = 'NO';
@@ -979,22 +955,19 @@ ENDPART
 	     $selectionmade=8;
 	 }
 	 my @students=split /\|\|\|/, $helper->{'VARS'}->{'STUDENTS'};
+         if ($helper->{'VARS'}->{'NUMBER_TO_PRINT'} eq '0') {$helper->{'VARS'}->{'NUMBER_TO_PRINT'}=$#students+1;}
 	 my @master_seq=split /\|\|\|/, $helper->{'VARS'}->{'RESOURCES'};
 	 #loop over students
 	 my $flag_latex_header_remove = 'NO'; 
 	 my %moreenv;
-	 if ($helper->{'VARS'}->{'pagesize.width'}=~/\d+/ &&
-	     $helper->{'VARS'}->{'pagesize.widthunit'}=~/\w+/) {
-	     $moreenv{'textwidth'}=&recalcto_mm($helper->{'VARS'}->{'pagesize.width'}.' '.$helper->{'VARS'}->{'pagesize.widthunit'});
-	 } else {
-	     $moreenv{'textwidth'}=$LaTeXwidth;
-	 }
+	 $moreenv{'form.textwidth'}=$LaTeXwidth;
 	 &Apache::lonnet::appenv(%moreenv);
 	 my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1);
+	 my $student_counter=-1;
 	 foreach my $person (@students) {
+	     $student_counter++;
 	    my $current_output = ''; 
-#	    my ($usersection,$username,$userdomain) = split /:/,$person;
-	    my ($username,$userdomain) = split /:/,$person;
+	    my ($username,$userdomain,$usersection) = split /:/,$person;
 	    my $fullname = &get_name($username,$userdomain);
 
 	    if ($parmhash{'anonymous_quiz'}=~/yes/) {$fullname=' ';} #put here something reasonable for anonymous exams or quiz
@@ -1041,6 +1014,7 @@ ENDPART
 	    }
 	    my $courseidinfo = &get_course();
 	    if (defined($courseidinfo)) { $courseidinfo=' - '.$courseidinfo }
+            if ($usersection ne '') {$courseidinfo.=' - Sec. '.$usersection}
 	    my $currentassignment=&Apache::lonxml::latex_special_symbols($helper->{VARS}->{'assignment'},'header');
 	    if ($current_output=~/\\documentclass/) {
 		$current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm} \\begin{document}\\noindent\\lhead{\\textit{\\textbf{$fullname}}$courseidinfo \\hfill \\thepage \\\\ \\textit{$currentassignment}}\\vskip 3 mm /;
@@ -1049,14 +1023,14 @@ ENDPART
 		for (my $j=0;$j<$helper->{'VARS'}->{'EMPTY_PAGES'};$j++) {$blanspages.='\clearpage\strut\clearpage';}
 		$current_output = '\strut\\newline\\noindent\\makebox[\\textwidth/$number_of_columns][b]{\\hrulefill}\\newline\\noindent{\\tiny Printed from LON-CAPA\\copyright MSU{\\hfill} Licensed under GNU General Public License }\\newpage '.$blanspages.'\setcounter{page}{1}\noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$fullname.'}}'.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$currentassignment.'}}} \vskip -5 mm '.$current_output;
 	    }
-	    $result .= $current_output;
+            $print_array[int($student_counter/$helper->{'VARS'}->{'NUMBER_TO_PRINT'})].=$current_output;
 	    &Apache::lonnet::delenv('form.counter');	    
 	    &Apache::lonxml::init_counter(); 
 	    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
 					     &mt('last student').' '.$fullname);
 	}
 	&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
-	$result .= '\end{document}';
+	$result .= $print_array[0].'  \end{document}';
 	&Apache::lonnet::delenv('form.textwidth');
     } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'problems_from_directory') {      
     #prints selected problems from the subdirectory 
@@ -1074,12 +1048,7 @@ ENDPART
 	    if ($urlp=~/\//) {
 		my %form;
 		$form{'grade_target'}='tex';
-		if ($helper->{'VARS'}->{'pagesize.width'}=~/\d+/ &&
-                    $helper->{'VARS'}->{'pagesize.widthunit'}=~/\w+/) {
-		    $form{'textwidth'}=&recalcto_mm($helper->{'VARS'}->{'pagesize.width'}.' '.$helper->{'VARS'}->{'pagesize.widthunit'});
-		} else {
-		    $form{'textwidth'}=$LaTeXwidth;
-		}
+		$form{'textwidth'}=$LaTeXwidth;
 		$form{'rndseed'}=$rndseed;
 		if ($urlp =~ m|/home/([^/]+)/public_html|) {
 		    $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
@@ -1138,6 +1107,7 @@ ENDPART
 #-------------------------------------------------------- corrections for the different page formats
     $result = &page_format_transformation($papersize,$laystyle,$numberofcolumns,$helper->{'VARS'}->{'PRINT_TYPE'},$result,$helper->{VARS}->{'assignment'},$helper->{'VARS'}->{'TABLE_CONTENTS'},$helper->{'VARS'}->{'TABLE_INDEX'});
     $result = &latex_corrections($number_of_columns,$result);
+    for (my $i=1;$i<=$#print_array;$i++) {$print_array[$i] = &latex_corrections($number_of_columns,$print_array[$i]);}
     #changes page's parameters for the one column output 
     if ($numberofcolumns == 1) {
 	$result =~ s/\\textwidth\s*=\s*\d*\.?\d*\s*(cm|mm|in)/\\textwidth= $helper->{'VARS'}->{'pagesize.width'} $helper->{'VARS'}->{'pagesize.widthunit'} /;
@@ -1152,6 +1122,25 @@ ENDPART
 	$r->log_error("Couldn't open $filename for output $!");
 	return SERVER_ERROR; 
     }
+    print $temp_file $result;
+    my $begin=index($result,'\begin{document}',0);
+    my $inc=substr($result,0,$begin+16);
+    if ($#print_array>0) {
+        for (my $i=1;$i<=$#print_array;$i++) {
+            my $anobegin=index($print_array[$i],'\setcounter{page}',0);
+	    substr($print_array[$i],0,$anobegin)='';
+	    $print_array[$i]=$inc.$print_array[$i].'\end{document}';
+	    my $temp_file;
+	    my $newfilename=$filename;
+	    $newfilename =~s/\.tex$/_add$i\.tex/; 
+	    unless ($temp_file = Apache::File->new('>'.$newfilename)) {
+		$r->log_error("Couldn't open $newfilename for output $!");
+		return SERVER_ERROR; 
+	    }
+	    print $temp_file $print_array[$i];
+	}
+
+    }
 
     my $identifier = time.'_'.int(rand(1000));
     &Apache::lonnet::appenv('cgi.'.$identifier.'.file'   => $filename,
@@ -1160,9 +1149,9 @@ ENDPART
                             'cgi.'.$identifier.'.selection' => $selectionmade,
 			    'cgi.'.$identifier.'tableofcontents' => $helper->{'VARS'}->{'TABLE_CONTENTS'},
 			    'cgi.'.$identifier.'tableofindex' => $helper->{'VARS'}->{'TABLE_INDEX'},
-			    'cgi.'.$identifier.'role' => $ENV{'request.role.adv'});
+			    'cgi.'.$identifier.'role' => $ENV{'request.role.adv'},
+                            'cgi.'.$identifier.'numberoffiles' => $#print_array);
  
-    print $temp_file $result;
 
 $r->print(<<FINALEND);
 <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$identifier">
@@ -1412,7 +1401,6 @@ HELPERFRAGMENT
 	if ($helper->{VARS}->{'assignment'}) {
 	    push @{$printChoices}, ["<b>Problems</b> from <b><i>$sequenceTitle</i></b> for <b>selected students</b>", 'problems_for_students', 'CHOOSE_STUDENTS'];
 	}
-
         &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
   <state name="ALL_PROBLEMS" title="Select Problem(s) to print">
     <message>(mark them then click "next" button) <br /></message>
@@ -1443,10 +1431,16 @@ HELPERFRAGMENT
     </state>
 CHOOSE_STUDENTS
 
+	addMessage("<hr width='33%' /><b>Number of assignments printed at the same time: </b>");
+        $paramHash = Apache::lonhelper::getParamHash();
+	$paramHash->{'variable'} = 'NUMBER_TO_PRINT';   
+	$helper->declareVar('NUMBER_TO_PRINT');         
+	addMessage("<input type='text' name='NUMBER_TO_PRINT.forminput' size='3' value='0' /><hr width='33%' />");
+
 	if ($helper->{VARS}->{'assignment'}) {
 	    push @{$printChoices}, ["<b>Resources</b> from <b><i>$sequenceTitle</i></b> for <b>selected students</b>", 'resources_for_students', 'CHOOSE_STUDENTS1'];
 	}
-        &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS1);
+	&Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS1);
   <state name="CHOOSE_STUDENTS1" title="Select Students and Resources">
     <student multichoice='1' variable="STUDENTS" nextstate="PAGESIZE" />
     <message><br /><big><i><b>Select resources for the assignment</b></i></big><br /></message>
@@ -1465,6 +1459,11 @@ CHOOSE_STUDENTS
     </state>
 CHOOSE_STUDENTS1
 
+ 	addMessage("<hr width='33%' /><b>Number of assignments printed at the same time: </b>");
+        $paramHash = Apache::lonhelper::getParamHash();
+	$paramHash->{'variable'} = 'NUMBER_TO_PRINT';   
+	$helper->declareVar('NUMBER_TO_PRINT');         
+	addMessage("<input type='text' name='NUMBER_TO_PRINT.forminput' size='3' value='0' /><hr width='33%' />");
     }
 
     # FIXME: That RE should come from a library somewhere.