--- loncom/homework/randomlabel.pm	2002/05/17 21:16:55	1.26
+++ loncom/homework/randomlabel.pm	2002/10/22 21:25:34	1.38
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # random labelling tool
 #
-# $Id: randomlabel.pm,v 1.26 2002/05/17 21:16:55 albertel Exp $
+# $Id: randomlabel.pm,v 1.38 2002/10/22 21:25:34 sakharuk Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -60,6 +60,8 @@ package Apache::randomlabel;
 use Apache::lonnet;
 use strict;
 use Apache::edit;
+use Apache::File();
+use Apache::Constants qw(:common :http);
 
 BEGIN {
   &Apache::lonxml::register('Apache::randomlabel',('randomlabel','labelgroup','location','label'));
@@ -91,7 +93,7 @@ sub start_randomlabel {
     } elsif ($bgimg =~ m:^/home/.*/public_html:) {
       $bgimg =~ s:^/home/(.*)/public_html:/~$1:;
     }
-    $bgimg="http://".$ENV{'SERVER_NAME'}.$bgimg;
+    $bgimg='http://'.$ENV{'SERVER_NAME'}.$bgimg;
   }
   my $code = &Apache::lonxml::get_param('code',$parstack,$safeeval);
   my $codebase = &Apache::lonxml::get_param('codebase',$parstack,$safeeval);
@@ -106,12 +108,44 @@ sub start_randomlabel {
     $result.="<applet code=\"$code\" codebase=\"$codebase\" width=\"$w\" height=\"$h\">\n";
     $result.="<param name=\"bgimg\" value=\"$bgimg\">\n";
   } elsif ($target eq 'tex') {
+    my $newbgimg = $bgimg;
     $bgimg=~s/(.gif|.jpg)$/.eps/;
     $bgimg= &Apache::lonnet::filelocation($bgimg);
-    $bgimg=~s/http:\/[^\/]*/\/home\/httpd\/html/;
+    if (not $ENV{'request.role'}=~/^au\./) {
+	$bgimg=~s/http:\/[^\/]*/\/home\/httpd\/html/;
+	$bgimg=~s/\/$//;
+        #if no eps file try to replicate it
+	if (not-e $bgimg) {
+	    if (&Apache::lonnet::repcopy($bgimg) ne OK ) {
+		#if replication failed try to find ps file
+		$bgimg=~s/\.eps$/\.ps/;
+		#if no ps file try to replicate it
+		if (not-e $bgimg &&
+		    &Apache::lonnet::repcopy($bgimg) ne OK) {
+                    #if replication failed try to produce eps file dynamically
+		    $bgimg=~s/\.ps$/\.eps/;
+		    my $temp_file;
+		    my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
+		    $temp_file = Apache::File->new('>>'.$filename);
+		    $newbgimg =~ s/(.*)\/res\//\/home\/httpd\/html\/res\//;
+		    print $temp_file "$newbgimg\n";
+		    $bgimg =~ m/\/([^\/]+)$/;
+		    $bgimg = '/home/httpd/prtspool/'.$1;
+		}
+	    }
+	}
+    } else {
+	$bgimg=~s/http:\/[^\/]*\/~([^\/]+)/\/home\/$1\/public_html/;
+    }
     $bgimg=~s/\/$//;
-    $result.='\vspace*{2mm}  \noindent \epsfxsize='.$texwidth.' mm \epsffile{'.
-    $bgimg.'}\setlength{\unitlength}{1mm}  \begin{picture}(0,0)('.$texwidth.','.$texwidth*$h/$w.')'
+    my $dirtywidth=$texwidth+5;
+    if ($texwidth==90) {
+	$result.='\vspace*{2mm}\noindent \parbox{'.$dirtywidth.' mm}{  \noindent \epsfxsize='.$texwidth.' mm \epsffile{'.
+	    $bgimg.'}\setlength{\unitlength}{1mm}  \begin{picture}('.$texwidth.','.$texwidth*$h/$w.')(0,-'.$texwidth*$h/$w.')';
+    } else {
+	$result.='\vspace*{2mm}\noindent \parbox{'.$dirtywidth.' mm}{  \noindent \epsfxsize='.$texwidth.' mm \epsffile{'.
+	    $bgimg.'}\setlength{\unitlength}{1mm}  \begin{picture}('.$texwidth.','.$texwidth*$h/$w.')(0,-'.$texwidth*$h/$w.')';
+    }
   } elsif ($target eq 'edit') {
     $result.=&Apache::edit::tag_start($target,$token);
     $result.=&Apache::edit::text_arg('Image:','bgimg',$token,75).' ';
@@ -145,7 +179,15 @@ sub end_randomlabel {
     if( $count != 0) { $result.= "<param name=\"ICOUNT\" value=\"$count\">\n"; }
     $result .= "</applet>\n<BR />";
   } elsif ($target eq 'tex') {
-    $result='\end{picture}\\\\';
+      $result='\end{picture}\\\\';
+	  @$parstack[-1]=~/\$height\s*=\s*?"(.+)?"/;
+      my $one=$1;
+	  @$parstack[-1]=~/\$width\s*=\s*?"(.+)?"/;
+      my $two=$1;
+	  @$parstack[-1]=~/\$texwidth\s*=\s*?"(.+)?"/;
+      my $three=$1;
+      my $howtoskipback = $three*$one/$two;
+      $result.=' \vskip -'.$howtoskipback.' mm }';
   } elsif ($target eq 'edit') {
     $result.=&Apache::edit::end_table;
   }
@@ -158,8 +200,8 @@ sub start_labelgroup {
   my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
   my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
   $type =~tr/A-Z/a-z/;
-  if ($target eq 'web' || $target eq 'tex' || 
-      $target eq 'grade' || $target eq 'answer') {
+  if ($target eq 'web' || $target eq 'tex' ||
+      $target eq 'grade' || $target eq 'answer' || $target eq 'analyze') {
     $Apache::randomlabel::groupname=$name;
     $Apache::randomlabel::type=$type;
     @Apache::randomlabel::xcoord = ();
@@ -184,7 +226,7 @@ sub start_labelgroup {
 }
 
 sub add_vars {
-  my ($name,$order,$label,$labelorder,$value,$safeeval) = @_;
+  my ($name,$order,$label,$labelorder,$value,$image,$safeeval) = @_;
   my $code = '${'.$name."}{'".($order+1)."'}='".$label."';";
   my $out=Apache::run::run($code,$safeeval);
   if ($value) {
@@ -193,6 +235,10 @@ sub add_vars {
     $code = '${'.$name."}{'labelvalue_".($labelorder+1)."'}='".$value."';";
     $out=Apache::run::run($code,$safeeval);
   }
+  if ($image) {
+      my $code = '${'.$name."}{'image_".($order+1)."'}='".$image."';";
+      my $out=Apache::run::run($code,$safeeval);
+  }
   $code = '${'.$name."}{'numlocations'}='".($order+1)."';";
   $out=Apache::run::run($code,$safeeval);
 }
@@ -203,7 +249,8 @@ sub end_labelgroup {
   my $gname = $Apache::randomlabel::groupname;
   my $type  = $Apache::randomlabel::type;
   my $result='';
-  if ($target eq 'web' || $target eq 'answer' || $target eq 'grade') {
+  if ($target eq 'web' || $target eq 'answer' || $target eq 'grade' ||
+      $target eq 'analyze') {
     my @idx_arr = (0 .. $#Apache::randomlabel::label_arr);
     &Apache::structuretags::shuffle(\@idx_arr);
     for(0 .. $#Apache::randomlabel::label_arr) {
@@ -215,13 +262,15 @@ sub end_labelgroup {
       my $y = $Apache::randomlabel::ycoord[$_];
       my $value = $Apache::randomlabel::value[$_];
       if( $type eq 'text') {
-	&add_vars($gname,$_,$label,$idx_arr[$_],$value,$safeeval);
+	&add_vars($gname,$_,$label,$idx_arr[$_],$value,'',$safeeval);
 	$str = 'LB'.$Apache::randomlabel::tlabel_cnt;
 	$xstr = 'X'.$Apache::randomlabel::tlabel_cnt;
 	$ystr = 'Y'.$Apache::randomlabel::tlabel_cnt;
 	$Apache::randomlabel::tlabel_cnt += 1;
       } elsif ( $type eq 'image') {
-	&add_vars($gname,$_,$idx_arr[$_],$idx_arr[$_],$value,$safeeval);
+	&add_vars($gname,$_,
+		  $Apache::randomlabel::description[$idx_arr[$_]],
+		  $idx_arr[$_],$value,$label,$safeeval);
 	$str = 'IMG'.$Apache::randomlabel::ilabel_cnt;
 	$xstr = 'IX'.$Apache::randomlabel::ilabel_cnt;
 	$ystr = 'IY'.$Apache::randomlabel::ilabel_cnt;
@@ -261,18 +310,20 @@ sub end_labelgroup {
       my $x = $Apache::randomlabel::xcoord[$i];
       my $y = $Apache::randomlabel::ycoord[$i];
       my $value = $Apache::randomlabel::value[$i];
-#      my $tcX=$x*($texwidth/$wwidth) - $texwidth;
-      my $tcX=($x-10)*($texwidth/$wwidth);
-#      my $tcY=$TY1-$y*($TY1/$wheight)-2;
-      my $ratio=($wwidth > 0 ? $wheight/$wwidth : 1 );
-      my $tcY=$TY1-$y*($TY1/$wheight)+$texwidth*$ratio;
+      #x latex coordinate
+      my $tcX=($x)*($texwidth/$wwidth);
+      #y latex coordinate
+#      my $ratio=($wwidth > 0 ? $wheight/$wwidth : 1 );
+      my $tcY=$TY1-$y*($TY1/$wheight);
       $tcX=sprintf('%.2f',$tcX);
       $tcY=sprintf('%.2f',$tcY);
       $result.='\put('.$tcX.','.$tcY.'){\normalsize \bf '.$label.'}'."\n";
       if( $type eq 'text') {
-	&add_vars($gname,$i,$label,$idx_arr[$i],$value,$safeeval);
+	&add_vars($gname,$i,$label,$idx_arr[$i],$value,'',$safeeval);
       } elsif ( $type eq 'image') {
-	&add_vars($gname,$i,$idx_arr[$i],$idx_arr[$i],$value,$safeeval);
+	&add_vars($gname,$i,
+		  $Apache::randomlabel::description[$idx_arr[$i]],
+		  $idx_arr[$i],$value,$label,$safeeval);
       } else {
 	&Apache::lonxml::error('Unknown type of label :'.$type.':');
       }
@@ -323,8 +374,8 @@ sub start_label {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result='';
   my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
-  if ($target eq 'web' || $target eq 'tex' || 
-      $target eq 'grade' || $target eq 'answer') {
+  if ($target eq 'web' || $target eq 'tex' ||
+      $target eq 'grade' || $target eq 'answer' || $target eq 'analyze') {
     my $ltext=&Apache::lonxml::get_all_text("/label",$$parser[-1]);
     $ltext=&Apache::run::evaluate($ltext,$safeeval,$$parstack[-1]);
     if ($type eq 'image') {
@@ -339,9 +390,11 @@ sub start_label {
     push(@Apache::randomlabel::label_arr,$ltext);
   } elsif ($target eq 'edit') {
     $result.=&Apache::edit::tag_start($target,$token,"$type Label");
-    $result.=&Apache::edit::text_arg('Description:','description',$token);
     my $text=&Apache::lonxml::get_all_text("/label",$$parser[-1]);
-    $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
+    if ($type eq 'image') {
+      $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
+      $result.=&Apache::edit::text_arg('Description:','description',$token);
+    }
     if ($type eq 'text') { $result.="Label Text:"; }
     if ($type eq 'image') { $result.="Path to image:"; }
     $result.=&Apache::edit::editline('',$text,'',20).