--- loncom/interface/lonprintout.pm	2003/05/14 13:33:27	1.168
+++ loncom/interface/lonprintout.pm	2003/05/15 14:55:24	1.175
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Printout
 #
-# $Id: lonprintout.pm,v 1.168 2003/05/14 13:33:27 albertel Exp $
+# $Id: lonprintout.pm,v 1.175 2003/05/15 14:55:24 sakharuk Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1041,6 +1041,8 @@ sub character_chart {
     sub page_format {
 	my ($papersize,$layout,$numberofcolumns) = @_; 
 	my ($textwidth,$textheight,$oddoffset,$evenoffset) = (0,0,0,0);
+
+
 	if ($papersize=~/Letter/) {
 	    if ($layout eq 'CAPA') {
 		if ($numberofcolumns == 1) {
@@ -1375,6 +1377,8 @@ ENDPART
 	    my %form;
 	    $form{'grade_target'}='tex';
 	    $form{'textwidth'}=$LaTeXwidth;
+	    my $rndseed=time;
+	    $form{'rndseed'}=$rndseed;
 	    &Apache::lonnet::appenv(%moreenv);
 	    my $texversion=&Apache::lonnet::ssi($currentURL,%form);
 	    &Apache::lonnet::delenv('form.counter');
@@ -1383,9 +1387,9 @@ ENDPART
 		my %form;
 		$form{'grade_target'}='answer';
 		$form{'answer_output_mode'}='tex';
+		$form{'rndseed'}=$rndseed;
 		my $answer=&Apache::lonnet::ssi($currentURL,%form);
-#		$r->print('<pre>'.$answer.'</pre>'); return OK;
-		$texversion=~s/(\\end{document})/$answer$1/;
+		$texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
 	    }
 	    $result .= $texversion;
 	    if ($currentURL=~m/\.page\s*$/) {
@@ -1417,7 +1421,7 @@ ENDPART
 	    } elsif ($helper->{'VARS'}->{'PRINT_TYPE'} eq 'all_problems') {
 		$selectionmade = 4;
 	    }
-	    my %form;
+	    my %form;	   
 	    $form{'grade_target'}='tex';
 	    $form{'textwidth'}=$LaTeXwidth;
 	    $form{'symb'}=$master_seq[$i];
@@ -1434,6 +1438,13 @@ ENDPART
 	    } else {
 		$texversion =~ s/\\end{document}//;
 	    }
+	    if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
+		my %form;
+		$form{'grade_target'}='answer';
+		$form{'answer_output_mode'}='tex';
+		my $answer=&Apache::lonnet::ssi($urlp,%form);
+		$texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
+	    }
 	    $result .= $texversion;         
 	    $flag_latex_header_remove = 'YES';   
 	}
@@ -1468,6 +1479,13 @@ ENDPART
 			} else {
 			    $rendered =~ s/\\end{document}//;
 			}
+			if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
+			    my %form;
+			    $form{'answer_output_mode'}='tex';
+			    my $ansrendered = &Apache::loncommon::get_student_answers($curresline,$username,$userdomain,
+										      $ENV{'request.course.id'},%form);
+			    $rendered=~s/(\\keephidden{ENDOFPROBLEM})/$ansrendered$1/;
+			}
 			$current_output .= $rendered;
 		    }
 		    $flag_latex_header_remove = 'YES';
@@ -1495,19 +1513,29 @@ ENDPART
 	$selectionmade = 6;
         my @list_of_files=split /\|\|\|/, $helper->{'VARS'}->{'FILES'};
 	@list_of_files=sort @list_of_files;
-	my $flag_latex_header_remove = 'NO';  
+	my $flag_latex_header_remove = 'NO'; 
+	my $rndseed=time;
 	for (my $i=0;$i<=$#list_of_files;$i++) {
 	    my $urlp = $list_of_files[$i];
 	    if ($urlp=~/\//) {
 		my %form;
 		$form{'grade_target'}='tex';
 		$form{'textwidth'}=$LaTeXwidth;
+		$form{'rndseed'}=$rndseed;
 		if ($urlp =~ m|/home/([^/]+)/public_html|) {
 		    $urlp =~ s|/home/([^/]*)/public_html|/~$1|;
 		} else {
 		    $urlp =~ s|^/home/httpd/html||;
 		}
 		my $texversion=&Apache::lonnet::ssi($urlp,%form);
+		if($helper->{'VARS'}->{'ANSWER_TYPE'} eq 'no') {
+		    my %form;
+		    $form{'grade_target'}='answer';
+		    $form{'answer_output_mode'}='tex';
+		    $form{'rndseed'}=$rndseed;
+		    my $answer=&Apache::lonnet::ssi($urlp,%form);
+		    $texversion=~s/(\\keephidden{ENDOFPROBLEM})/$answer$1/;
+		}
                 #this chunck is responsible for printing the path to problem
 		my $newurlp = '';
 		my $HowMany = length($urlp)*2;
@@ -1537,6 +1565,7 @@ ENDPART
 	    }
 	    $flag_latex_header_remove = 'YES';  
 	}
+	if ($helper->{VARS}->{'construction'} eq '1') {$result=~s/(\\typeout)/ RANDOM SEED IS $rndseed $1/;}
 	$result .= '\end{document}';      	
     }
 #-------------------------------------------------------- corrections for the different page formats
@@ -1826,7 +1855,7 @@ HELPERFRAGMENT
         &Apache::lonxml::xmlparse($r, 'helper', <<CHOOSE_STUDENTS);
   <state name="ALL_PROBLEMS" title="Select Problem(s) to print">
     <message>(mark them then click "next" button) <br /></message>
-    <resource variable="RESOURCES" multichoice="1">
+    <resource variable="RESOURCES" multichoice="1" suppressEmptySequences='1'>
       <nextstate>PAGESIZE</nextstate>
       <filterfunc>return $isProblemOrMap</filterfunc>
       <choicefunc>return $isProblem</choicefunc>
@@ -1888,7 +1917,8 @@ CHOOSE_FROM_SUBDIR
     $paramHash->{CHOICES} = $printChoices;
     Apache::lonhelper::choices->new();
 
-    if ($ENV{'request.role.adv'}) {
+    if (($ENV{'request.role.adv'} and &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) or 
+	($helper->{VARS}->{'construction'} eq '1')) {
         $paramHash = Apache::lonhelper::getParamHash();
         $paramHash->{MESSAGE_TEXT} = "<br /><big><b><i>Next option is available only for advanced users:</i></b></big><br />";
         Apache::lonhelper::message->new();