--- loncom/interface/lonprintout.pm 2002/07/16 20:30:53 1.38 +++ loncom/interface/lonprintout.pm 2003/05/05 18:01:21 1.149 @@ -1,7 +1,7 @@ # The LearningOnline Network # Printout # -# $Id: lonprintout.pm,v 1.38 2002/07/16 20:30:53 www Exp $ +# $Id: lonprintout.pm,v 1.149 2003/05/05 18:01:21 bowersj2 Exp $ # # Copyright Michigan State University Board of Trustees # @@ -43,12 +43,19 @@ use strict; use Apache::Constants qw(:common :http); use Apache::lonxml; use Apache::lonnet; +use Apache::loncommon; use Apache::inputtags; +use Apache::grades; use Apache::edit; use Apache::File(); +use Apache::lonnavmaps; use POSIX qw(strftime); +use GDBM_File; +my %hash; +my $LaTeXwidth = 0; + sub headerform { my $r = shift; $r->print(<
-$ENV{'form.postdata'}

-

What do you want to print? Make a choice.


ENDHEADER + + if ($ENV{'form.postdata'}=~m|^/res/|) { + $r->print(<Path to current document: $ENV{'form.postdata'}

+ENDHEADER1 + } } sub menu_for_output { my $r = shift; + my ($title_for_single_resource,$title_for_sequence,$title_for_main_map) = &details_for_menu; + my $assignment = $title_for_sequence; + if ($title_for_single_resource ne '') {$title_for_single_resource = '"'.$title_for_single_resource.'"';} + if ($title_for_sequence ne '') {$title_for_sequence = '"'.$title_for_sequence.'"';} + if ($title_for_main_map ne '') {$title_for_main_map = '"'.$title_for_main_map.'"';} + $ENV{'form.postdata'} =~ s|http://[^/]+||; + my $subdir_to_print = $ENV{'form.postdata'}; + $subdir_to_print =~ m/\/([^\/]+)$/; + $subdir_to_print =~ s/\Q$1\E//; $r->print(<What do you want to print? Make a choice.
- Current document -(you will print what you see on the screen)
- All problems from the primary sequence
- The whole primary sequence (problems plus all html and xml files)
- All problems from the top level sequence
-
+ + Current document $title_for_single_resource +(prints what you just saw on the screen)
ENDMENUOUT1 - my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'}); - $subdirtoprint =~ s/\/[^\/]+$//; - if (&Apache::lonnet::allowed('bre',$subdirtoprint) eq 'F') { + if ($ENV{'form.postdata'}=~/\/res\//) { $r->print(< All problems from current subdirectory (where this particular problem is)
+ Problem(s) from $title_for_sequence
+ Problem(s) plus page(s) or html/xml file(s) from $title_for_sequence
ENDMENUOUT2 -} - $r->print(<print(< All problems in this course (warning: this may be time consuming)
+
+ All problems from $title_for_sequence for selected students

+ENDMENUOUT6 + } + my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'}); + $subdirtoprint =~ s/\/[^\/]+$//; + if ((&Apache::lonnet::allowed('bre',$subdirtoprint) eq 'F') and ($ENV{'form.postdata'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)/)) { + $r->print(< Problems from current subdirectory $subdir_to_print
+ENDMENUOUT4 + } + $r->print(<


And what page format do you prefer?

@@ -94,21 +125,315 @@ ENDMENUOUT2 + +
  - Number of columns: + Number of columns: + + Paper size (format [width x height]):

+ENDMENUOUT5 +} + + +sub sequence_content_menu { + my ($key_to,$r) = @_; + my $primary_sequence; + my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'}); + my @sequence = split('___',$symbolic); + $primary_sequence=&Apache::lonnet::clutter($sequence[0]); + my @master_seq = &coming_from_hash($primary_sequence); + my @titles_master_seq = (); + for (my $i=0;$i<=$#master_seq;$i++) { + my ($path,$title,$symb) = split /&&/,$master_seq[$i]; + $master_seq[$i] = $path.'&&'.$symb; + push @titles_master_seq, $title; + } + my @master_seq_view = @master_seq; + if ($ENV{'user.adv'}) { + for (my $i=0;$i<=$#master_seq_view;$i++) { + $master_seq_view[$i]=~/___\d+___(.+)$/; + $master_seq_view[$i]='/'.$1; + } + } else { + for (my $i=0;$i<=$#master_seq_view;$i++) { + $master_seq_view[$i]=' '; + } + } + $r->print(< + + + + + +

Mark item(s) which you want to print

+ + +  +  + +

+ENDMENUOUT1 + my $inc=0; + for (my $i=0;$i<=$#master_seq_view;$i++) { + if ($key_to==1 && $master_seq[$i]=~/\.(problem|exam|quiz|assess|survey|form|library)$/) { + $r->print('
'."\n".''. + $titles_master_seq[$i].'   '.$master_seq_view[$i].''); + $inc++; + } elsif ($key_to==0 && $master_seq[$i]=~/\.(problem|exam|quiz|assess|survey|form|library|xml|htm|html|page)$/) { + $r->print('
'."\n".''. + $titles_master_seq[$i].'   '.$master_seq_view[$i].''); + $inc++; + } + } + $r->print(<
+ + +  +  + +ENDMENUOUT2 + +} + + +sub problem_choice_menu { + my $r = shift; + my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'}); + $subdirtoprint =~ s/\/[^\/]+$//; + my @list_of_files = (); + my @content_directory = (); + $r->print("Subdir: " . $subdirtoprint . "
"); + if ($subdirtoprint =~ m|/home/([^/]+)/public_html|) { + #localmachine CSTR space + my $user=$1; + my $domain=$Apache::lonnet::perlvar{'lonDefDomain'}; + @content_directory = &Apache::lonnet::dirlist($subdirtoprint, + $domain, $user,''); + } else { + #local library server res space (allows to print only from the own library server) + @content_directory = &Apache::lonnet::dirlist($subdirtoprint,$ENV{'user.domain'}, $ENV{'user.name'},''); + } + for (my $iy=0;$iy<=$#content_directory;$iy++) { + my @tempo_array = split(/&/,$content_directory[$iy]); + if ($tempo_array[0] =~ m/^[^\.]+\.(problem|exam|quiz|assess|survey|form|library)$/) { + push(@list_of_files,$tempo_array[0]); + } + } + $subdirtoprint =~ s/\/$//; + for (my $i=0;$i<=$#list_of_files;$i++) { + $list_of_files[$i] = $subdirtoprint.'/'.$list_of_files[$i]; + } + $r->print(< + + + +

Mark problems which you want to print

+ +  +  + +

+ENDMENUOUT1 + my $i=0; + foreach my $file (sort @list_of_files) { + $r->print('
'. + $file); + $i++; + } + $r->print(<
+ + + +  +  + +ENDMENUOUT2 +} + + +sub additional_class_menu { + my $r = shift; + $r->print(< + + + + +

Select student(s) whose assignment you want to print

+ENDMENUOUT1 + my %courselist=&Apache::lonnet::dump( + 'classlist', + $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, + $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); + my $now=time; + $r->print(< + function checkall() { + for (i=0; i +  + +  + +

+ENDDISHEADER + my $i = 0; + foreach (sort keys %courselist) { + my ($end,$start)=split(/\:/,$courselist{$_}); + my $active=1; + if (($end) && ($now>$end)) { $active=0; } + if ($active) { + my ($sname,$sdom)=split(/\:/,$_); + my %reply=&Apache::lonnet::get('environment', + ['firstname','middlename','lastname','generation'], + $sdom,$sname); + my $section=&Apache::lonnet::usection + ($sdom,$sname,$ENV{'request.course.id'}); + if ($section == -1) { $section = ''; } + $r->print( + '
'. + $reply{'firstname'}.' '. + $reply{'middlename'}.' '. + $reply{'lastname'}.' '. + $reply{'generation'}. + ' ('.$_.') '.$section); + $i++; + } + } + $r->print(<

+
Number of blank pages added to each student assignments to print these assignments on physically different sheets (requires manual addjustment):
+
+ + + + +ENDMENUOUT2 +} + + +sub additional_print_menu { + my $r = shift; + my $what_to_print = ''; + for (my $i=0; $i<$ENV{'form.numberofstudents'};$i++) { + $what_to_print .= ''; + } + for (my $i=0; $i<$ENV{'form.numberofproblems'};$i++) { + $what_to_print .= ''; + } + for (my $i=0; $i<$ENV{'form.numberoffiles'};$i++) { + $what_to_print .= ''; + } + $r->print(< + + + + + + + + + +Define one column layout parameters:
+Width:
+Height:
+Left margin:
+ + -ENDMENUOUT3 +ENDMENUOUT } - - sub output_data { my $r = shift; $r->print(<$symb)); + &Apache::lonnet::delenv('form.grade_target','form.textwidth'); + if ($urlp =~ m/\.page/) { + ($texversion,my $number_of_columns_page) = &page_cleanup($texversion); + if ($number_of_columns_page > $number_of_columns) {$number_of_columns=$number_of_columns_page;} + $texversion =~ s/\\end{document}\d*/\\end{document}/; + $flag_page_in_sequence = 'YES'; + } + if ($flag_latex_header_remove ne 'NO') { + $texversion = &latex_header_footer_remove($texversion); + } else { + $texversion =~ s/\\end{document}//; + } + $result .= $texversion; + $flag_latex_header_remove = 'YES'; + } + &Apache::lonnet::delenv('form.counter'); + if ($flag_page_in_sequence eq 'YES') {$result =~ s/\\usepackage{calc}/\\usepackage{calc}\\usepackage{longtable}/;} + $result .= '\end{document}'; + } elsif ($choice eq 'Standard LaTeX output for the top level sequence') { + # where is the main sequence of the course? + $selectionmade = 4; + my $main_seq=&Apache::lonnet::clutter($ENV{'request.course.uri'}); + my @file_seq = &coming_from_hash($main_seq); + for (my $i=0;$i<=$#file_seq;$i++) { + my ($path,$title,$symb) = split /&&/,$file_seq[$i]; + $file_seq[$i] = $path.'&&'.$symb; + } + my $flag_latex_header_remove = 'NO'; + #-- produce an output string + for (my $i=0;$i<=$#file_seq;$i++) { + if (not $file_seq[$i]=~/^&&/) { + my ($urlp,$symb) = split /&&/, $file_seq[$i]; + $urlp=~s/\/home\/httpd\/html//; + if ($urlp=~m/\.(problem|exam|quiz|assess|survey|form|library)/) { my %moreenv; $moreenv{'form.grade_target'}='tex'; + $moreenv{'form.textwidth'}=$LaTeXwidth; &Apache::lonnet::appenv(%moreenv); - my $texversion=&Apache::lonnet::ssi($urlp); - &Apache::lonnet::delenv('form.grade_target'); - $result .= $texversion; - } - } - $result = &additional_cleanup($result); - } elsif ($choice eq 'Standard LaTeX output for the top level sequence') { - my @master_seq = (); - my @add_file_seq = (); -#-- where is the main sequence of the course? - my $main_seq = '/res/'.$ENV{'request.course.uri'}; - my $file=&Apache::lonnet::filelocation("",$main_seq); - my $filecontents=&Apache::lonnet::getfile($file); - my @file_seq = &content_map($filecontents); -#-- do we have any other sequence inside? - my $i=0; - while ($i<=$#file_seq) { - $_ = $file_seq[$i]; - if (/\.sequence$/) { - $file = &Apache::lonnet::filelocation("",$file_seq[$i]); - $filecontents=&Apache::lonnet::getfile($file); - @add_file_seq = &content_map($filecontents); - splice(@file_seq,$i,1,@add_file_seq); - @add_file_seq = (); - $i = -1; + my $texversion=&Apache::lonnet::ssi($urlp,('symb'=>$symb)); + &Apache::lonnet::delenv('form.grade_target','form.textwidth'); + if ($flag_latex_header_remove ne 'NO') { + $texversion = &latex_header_footer_remove($texversion); + } else { + $texversion =~ s/\\end{document}//; + } + $result .= $texversion; + $flag_latex_header_remove = 'YES'; + } + } + } + $result .= '\end{document}'; + } elsif ($choice eq 'All class print') { + #-- prints assignments for whole class or for selected students + $selectionmade = 5; + my @students = (); + for (my $i=0; $i<$ENV{'form.numberofstudents'};$i++) { + if ($ENV{'form.whomtoprint'.$i}=~/:/) { + push @students,$ENV{'form.whomtoprint'.$i}; } - $i++; } - @master_seq = @file_seq; -#-- produce an output string + #where is the primary sequence containing current resource (the same for all students)? + my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'}); + my @sequence = split('___',$symbolic); + my $primary_sequence; + + $primary_sequence=&Apache::lonnet::clutter($sequence[0]); + my @master_seq = &coming_from_hash($primary_sequence); for (my $i=0;$i<=$#master_seq;$i++) { - $_ = $master_seq[$i]; - m/\"(.*)\"/; - $_ = $1; - my $urlp = $1; - if (/\.(problem|exam|quiz|assess|survey|form|library)/) { + my ($path,$title,$symb) = split /&&/,$master_seq[$i]; + $master_seq[$i] = $path.'&&'.$symb; + } + #loop over students + my $flag_latex_header_remove = 'NO'; + my %moreenv; + $moreenv{'form.textwidth'}=$LaTeXwidth; + &Apache::lonnet::appenv(%moreenv); + my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Print Status','Class Print Status',$#students+1); + foreach my $person (@students) { + my $current_output = ''; + my ($usersection,$username,$userdomain) = split /:/,$person; + my $fullname = &get_name($username,$userdomain); + #goes through all resources, checks if they are available for current student, and produces output + foreach my $curresline (@master_seq) { + my ($curres,$symb) = split /&&/, $curresline; + if ($curres=~ m/\.(problem|exam|quiz|assess|survey|form|library)/) { + my ($map,$id,$res_url) = split(/___/,$symb); + if (&Apache::lonnet::allowed('bre',$res_url)) { + my $rendered = &Apache::loncommon::get_student_view($symb,$username,$userdomain, + $ENV{'request.course.id'},'tex'); + if ($flag_latex_header_remove eq 'YES') { + $rendered = &latex_header_footer_remove($rendered); + } else { + $rendered =~ s/\\end{document}//; + } + $current_output .= $rendered; + } + $flag_latex_header_remove = 'YES'; + } + } + my $courseidinfo = $ENV{'course.'.$ENV{'request.course.id'}.'.description'}; + if ($current_output=~/\\documentclass/) { + $current_output =~ s/\\begin{document}/\\setlength{\\topmargin}{1cm}\\usepackage{fancyhdr}\\pagestyle{fancy}\\rhead{}\\chead{} \\begin{document}\\noindent\\lhead{\\textit{\\textbf{$fullname}} - $courseidinfo \\hfill \\thepage \\\\ \\textit{$assignment}}\\vskip 3 mm /; + } else { + my $blanspages = ''; + for (my $j=0;$j<$ENV{'form.addedpages'};$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 \\vskip 3mm'.$blanspages.'\setcounter{page}{1}\noindent\parbox{\minipagewidth}{\noindent\\lhead{\\textit{\\textbf{'.$fullname.'}} - '.$courseidinfo.' \\hfill \\thepage \\\\ \\textit{'.$assignment.'}}\hskip 1.4in } \vskip 5 mm '.$current_output; + } + $result .= $current_output; + &Apache::lonnet::delenv('form.counter'); + &Apache::lonxml::init_counter(); + &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state, + 'last student '.$fullname); + } + &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); + $result .= '\end{document}'; + &Apache::lonnet::delenv('form.textwidth'); + } elsif ($choice eq 'Subdirectory print') { + #prints selected problems from the subdirectory + $selectionmade = 6; + my @list_of_files = (); + for (my $i=0; $i<$ENV{'form.numberofproblems'};$i++) { + if ($ENV{'form.whattoprint'.$i}=~/^\//) { + push @list_of_files,$ENV{'form.whattoprint'.$i}; + } + } + my $flag_latex_header_remove = 'NO'; + for (my $i=0;$i<=$#list_of_files;$i++) { + my $urlp = $list_of_files[$i]; + if ($urlp=~/\//) { my %moreenv; $moreenv{'form.grade_target'}='tex'; + $moreenv{'form.textwidth'}=$LaTeXwidth; &Apache::lonnet::appenv(%moreenv); + if ($urlp =~ m|/home/([^/]+)/public_html|) { + $urlp =~ s|/home/([^/]*)/public_html|/~$1|; + } else { + $urlp =~ s|^/home/httpd/html||; + } my $texversion=&Apache::lonnet::ssi($urlp); - &Apache::lonnet::delenv('form.grade_target'); - $result .= $texversion; - } - } - $result = &additional_cleanup($result); - } elsif ($choice eq 'Subdirectory print') { - my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'}); - $subdirtoprint =~ s/\/[^\/]+$//; - my @list_of_files = (); - my $localdirectory = $subdirtoprint; - $localdirectory =~ s/.*(\/res\/)/$1/; - my @content_directory = &Apache::lonnet::dirlist($localdirectory); - for (my $iy=0;$iy<=$#content_directory;$iy++) { - my @tempo_array = split(/&/,$content_directory[$iy]); - $content_directory[$iy] = $tempo_array[0]; - if ($content_directory[$iy] =~ m/^[^\.]+\.problem$/) { - push @list_of_files,$content_directory[$iy]; + &Apache::lonnet::delenv('form.grade_target','form.textwidth'); + #this chunck is responsible for printing the path to problem + my $newurlp = ''; + my $HowMany = length($urlp)*2; + if ($HowMany > $LaTeXwidth) { + my @temporrary = split '/',$urlp; + my $HowManyNew = 0; + for (my $ii=0;$ii<=$#temporrary;$ii++) { + if ($temporrary[$ii] ne '') { + $HowManyNew += length($temporrary[$ii])*2; + if ($HowManyNew < $LaTeXwidth ) { + $newurlp .= '/'.$temporrary[$ii]; + } else { + $HowManyNew = 0; + $newurlp .= '|\vskip -1 mm \noindent \verb|'; + $ii--; + } + } + } + } + $texversion =~ s/(\\begin{minipage}{\\textwidth})/$1 {\\small\\noindent\\verb|$newurlp\|\\vskip 0 mm}/; + if ($flag_latex_header_remove ne 'NO') { + $texversion = &latex_header_footer_remove($texversion); + } else { + $texversion =~ s/\\end{document}//; + } + $result .= $texversion; } + $flag_latex_header_remove = 'YES'; } - $localdirectory =~ s/\/$//; - for (my $i=0;$i<=$#list_of_files;$i++) { - my $urlp = $localdirectory.'/'.$list_of_files[$i]; - my %moreenv; - $moreenv{'form.grade_target'}='tex'; - &Apache::lonnet::appenv(%moreenv); - my $texversion=&Apache::lonnet::ssi($urlp); - &Apache::lonnet::delenv('form.grade_target'); - $texversion =~ s/(\\begin{document})/$1 {\\tiny\\begin{verbatim}$urlp\\end{verbatim}}/; - $result .= $texversion; - } - $result = &additional_cleanup($result); - - - - - - + $result .= '\end{document}'; } -#-- corrections for the different page formats - if ($layout eq 'CBI' and $numberofcolumns eq '1') { - } elsif ($layout eq 'CBI' and $numberofcolumns eq '2') { - $result =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{-40pt}\\setlength{\\evensidemargin}{-60pt}\\setlength{\\topmargin}{200pt}\\setlength{\\textwidth}{4\.4in}\\setlength{\\textheight}{6\.8in}\\setlength{\\parindent}{20pt}\\setlength{\\marginparwidth}{90pt}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt} \\begin{document}/; +#-------------------------------------------------------- corrections for the different page formats + $result = &page_format_transformation($papersize,$layout,$numberofcolumns,$choice,$result,$assignment); + if ($layout eq 'CBI') { $laystyle = 'album'; - } elsif ($layout eq 'CAPA') { - my $courseidinfo = $ENV{'request.role'}; - $_ = $courseidinfo; - m/.*\/(.*)/; - $courseidinfo = $ENV{'course.physnet_'.$1.'.description'}; -# $result =~ s/\\documentclass\[letterpaper\]{article}/\\documentclass\[twocolumn\]{article}/; - $result =~ s/\\documentclass\[letterpaper\]{article}/\\documentclass{article}/; - $result =~ s/\\begin{document}/\\textheight 25\.9cm\\oddsidemargin = -0\.57in\\evensidemargin = -0\.57in\\textwidth= 9cm\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\begin{document}\\voffset=-1\.8cm\\setcounter{page}{1}\\parbox{\\minipagewidth}{\\noindent\\fbox{\\textbf{$ENV{'environment.firstname'} $ENV{'environment.lastname'}}}\\hskip 1\.4in $courseidinfo} \\vskip 5 mm /; - $result =~ s/\\includegraphics{/\\includegraphics\[width=9\.0 cm\]{/g; -# $result =~ s/\\includegraphics{/\\includegraphics\[width=\\textwidth\]{/g; -# $result =~ s/(\\end{document})/\\newline\\noindent\\makebox\[9.0cm\]\[b\]{\\hrulefill}\\newline\\noindent\\tiny Dept\. of Physics and Astronomy, MSU\\makebox\[1.5cm\]\[b\]{\\hfill}LON-CAPA\\copyright MSU GNU\/GPL $1/; - $result =~ s/(\\end{document})/\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill}\\newline\\noindent\\tiny Dept\. of Physics and Astronomy, MSU\\makebox\[1.5cm\]\[b\]{\\hfill}LON-CAPA\\copyright MSU GNU\/GPL $1/; -# $result =~ s/(\\end{longtable}\s*)(\\newline\\noindent\\makebox\[9\.0cm\]\[b\]{\\hrulefill})/$2$1/g; - $result =~ s/(\\end{longtable}\s*)(\\newline\\noindent\\makebox\[\\textwidth\/$number_of_columns\]\[b\]{\\hrulefill})/$2$1/g; - $result =~ s/(\\end{longtable}\s*)\\newline/$1/g; - $result =~ s/\$number_of_columns/$number_of_columns/g; } -#-- LaTeX corrections - my $first_comment = index($result,'',$first_comment); - substr($result,$first_comment,$end_comment-$first_comment+3) = ''; - $first_comment = index($result,'',$first_comment); + substr($result,$first_comment,$end_comment-$first_comment+3) = ''; + $first_comment = index($result,' + Seperate each student's problems with a full blank page + Seperate each student's problems with two full blank pages + + +CHOOSE_STUDENTS } + + # FIXME: That RE should come from a library somewhere. + if ((&Apache::lonnet::allowed('bre',$subdir) eq 'F') and ($helper->{VARS}->{'postdata'}=~/\.(problem|exam|quiz|assess|survey|form|library|page|xml|html|htm|xhtml|xhtm)/)) { + push @{$printChoices}, ["Problems from $subdir", 'problems_from_directory', 'CHOOSE_FROM_SUBDIR']; + + my $f = '$filename'; + my $xmlfrag = < + Select problems you wish to print from $subdir + + PAGESIZE + return '$subdir'; +CHOOSE_FROM_SUBDIR + + $xmlfrag .= <<'CHOOSE_FROM_SUBDIR'; + return $filename =~ + m/^[^\.]+\.(problem|exam|quiz|assess|survey|form|library)$/; + + + +CHOOSE_FROM_SUBDIR + &Apache::lonxml::xmlparse($r, 'helper', $xmlfrag); + } + + # Generate the first state, to select which resources get printed. + Apache::lonhelper::state->new("START", "Selecting Resources to Print"); + $paramHash = Apache::lonhelper::getParamHash(); + $paramHash->{MESSAGE_TEXT} = "What do you want to print?"; + Apache::lonhelper::message->new(); + $paramHash = Apache::lonhelper::getParamHash(); + $paramHash->{'variable'} = 'PRINT_TYPE'; + $helper->declareVar('PRINT_TYPE'); + $paramHash->{CHOICES} = $printChoices; + Apache::lonhelper::choices->new(); + Apache::lonprintout::page_format_state->new("FORMAT"); + + # Generate the PAGESIZE state which will offer the user the margin + # choices if they select one column + Apache::lonhelper::state->new("PAGESIZE", "Set Margins"); + Apache::lonprintout::page_size_state->new('pagesize', 'FORMAT', 'FINAL'); + + + $helper->process(); + + # MANUAL BAILOUT CONDITION: + # If we're in the "final" state, bailout and return to handler + if ($helper->{STATE} eq 'FINAL') { + return $helper; + } + + $r->print($helper->display()); + + Apache::lonhelper::unregisterHelperTags(); + + untie %hash; + return OK; +} -} 1; -__END__ +package Apache::lonprintout::page_format_state; +=pod +=head1 Helper element: page_format_state + +See lonhelper.pm documentation for discussion of the helper framework. + +Apache::lonprintout::page_format_state is an element that gives the +user an opportunity to select the page layout they wish to print +with: Number of columns, portrait/landscape, and paper size. If you +want to change the paper size choices, change the @paperSize array +contents in this package. + +page_format_state is always directly invoked in lonprintout.pm, so there +is no tag interface. You actually pass parameters to the constructor. + +=over 4 + +=item * B(varName): varName is where the print information will be stored in the format FIXME. + +=back + +=cut + +use Apache::lonhelper; + +no strict; +@ISA = ("Apache::lonhelper::element"); +use strict; + +my $maxColumns = 2; +my @paperSize = ("Letter [8 1/2x11 in]", "Legal [8 1/2x14 in]", + "Ledger/Tabloid [11x17 in]", "Executive [7 1/2x10 in]", + "A2 [420x594 mm]", "A3 [297x420 mm]", "A4 [210x297 mm]", + "A5 [148x210 mm]", "A6 [105x148 mm]" ); + +# Tentative format: Orientation (L = Landscape, P = portrait) | Colnum | +# Paper type + +sub new { + my $self = Apache::lonhelper::element->new(); + + shift; + + $self->{'variable'} = shift; + my $helper = Apache::lonhelper::getHelper(); + $helper->declareVar($self->{'variable'}); + bless($self); + return $self; +} + +sub render { + my $self = shift; + my $helper = Apache::lonhelper::getHelper(); + my $result = ''; + my $var = $self->{'variable'}; + + $result .= <How should the printing be formatted?

+ + + + + + + + +
LayoutColumnsPaper type
+ Landscape
+ Portrait + 		+ \n"; + $result .= "
"; + return $result; +} + +sub postprocess { + my $self = shift; + + my $var = $self->{'variable'}; + my $helper = Apache::lonhelper->getHelper(); + $helper->{VARS}->{$var} = + $ENV{"form.$var.layout"} . '|' . $ENV{"form.$var.cols"} . '|' . + $ENV{"form.$var.paper"}; + return 1; +} + +1; + +package Apache::lonprintout::page_size_state; + +=pod + +=head1 Helper element: page_size_state + +See lonhelper.pm documentation for discussion of the helper framework. + +Apache::lonprintout::page_size_state is an element that gives the +user the opportunity to further refine the page settings if they +select a single-column page. + +page_size_state is always directly invoked in lonprintout.pm, so there +is no tag interface. You actually pass parameters to the constructor. + +=over 4 + +=item * B(varName): varName is where the print information will be stored in the format FIXME. + +=back + +=cut + +use Apache::lonhelper; + +no strict; +@ISA = ("Apache::lonhelper::element"); +use strict; + + + +sub new { + my $self = Apache::lonhelper::element->new(); + + shift; # disturbs me (probably prevents subclassing) but works (drops + # package descriptor)... - Jeremy + + $self->{'variable'} = shift; + my $helper = Apache::lonhelper::getHelper(); + $helper->declareVar($self->{'variable'}); + + # The variable name of the format element, so we can look into + # $helper->{VARS} to figure out whether the columns are one or two + $self->{'formatvar'} = shift; + + # The state to transition to after selection, or after discovering + # the cols are not set to 1 + $self->{NEXTSTATE} = shift; + bless($self); + return $self; +} + +sub render { + my $self = shift; + my $helper = Apache::lonhelper::getHelper(); + my $result = ''; + my $var = $self->{'variable'}; + + if (defined $self->{ERROR_MSG}) { + $result .= '
' . $self->{ERROR_MSG} . '
'; + } + + $result .= <How should the column be formatted?

+ + + + + + + + + + + + + + + + + +
Width: + +
Height: + +
Left margin: + +
+ +

Hint: Some instructors like to leave scratch space for the student by +making the width much smaller then the width of the page.

+ +ELEMENTHTML + + return $result; +} + +# If the user didn't select 1 column, skip this state. +sub preprocess { + my $self = shift; + my $helper = Apache::lonhelper::getHelper(); + + my $format = $helper->{VARS}->{$self->{'formatvar'}}; + if (substr($format, 2, 1) ne '1') { + $helper->changeState($self->{NEXTSTATE}); + } + + return 1; +} + +sub postprocess { + my $self = shift; + + my $var = $self->{'variable'}; + my $helper = Apache::lonhelper->getHelper(); + my $width = $helper->{VARS}->{$var .'.width'} = $ENV{"form.${var}.width"}; + my $height = $helper->{VARS}->{$var .'.height'} = $ENV{"form.${var}.height"}; + my $lmargin = $helper->{VARS}->{$var .'.lmargin'} = $ENV{"form.${var}.lmargin"}; + $helper->{VARS}->{$var .'.widthunit'} = $ENV{"form.${var}.widthunit"}; + $helper->{VARS}->{$var .'.heightunit'} = $ENV{"form.${var}.heightunit"}; + $helper->{VARS}->{$var .'.lmarginunit'} = $ENV{"form.${var}.lmarginunit"}; + + my $error = ''; + + # /^-?[0-9]+(\.[0-9]*)?$/ -> optional minus, at least on digit, followed + # by an optional period, followed by digits, ending the string + + if ($width !~ /^-?[0-9]+(\.[0-9]*)?$/) { + $error .= "Invalid width; please type only a number.
\n"; + } + if ($height !~ /^-?[0-9]+(\.[0-9]*)?$/) { + $error .= "Invalid height; please type only a number.
\n"; + } + if ($lmargin !~ /^-?[0-9]+(\.[0-9]*)?$/) { + $error .= "Invalid left margin; please type only a number.
\n"; + } + + if (!$error) { + Apache::lonhelper::getHelper()->changeState($self->{NEXTSTATE}); + return 1; + } else { + $self->{ERROR_MSG} = $error; + return 0; + } +} + + + +__END__ -#### Test block -# my $ere; -# foreach $ere (%ENV) { -# $result .= ' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n"; -# } -####