--- loncom/homework/imageresponse.pm	2002/07/29 20:43:47	1.20
+++ loncom/homework/imageresponse.pm	2003/05/05 22:36:54	1.26
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # image click response style
 #
-# $Id: imageresponse.pm,v 1.20 2002/07/29 20:43:47 albertel Exp $
+# $Id: imageresponse.pm,v 1.26 2003/05/05 22:36:54 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -26,10 +26,12 @@
 # http://www.lon-capa.org/
 #
 
-#FIXME assumes multiple possbile submissions but only one is possible currently
+#FIXME LATER assumes multiple possible submissions but only one is possible 
+#currently
 
 package Apache::imageresponse;
 use strict;
+use Image::Magick;
 
 BEGIN {
   &Apache::lonxml::register('Apache::imageresponse',('imageresponse'));
@@ -84,7 +86,7 @@ sub whichfoils {
     if (&Apache::response::showallfoils()) {
       $aopt=0;
     } else {
-      $aopt=int(rand($#names+1));
+      $aopt=int(&Math::Random::random_uniform() * ($#names+1));
     }
     &Apache::lonxml::debug("From $#names elms, picking $aopt");
     $aopt=splice(@names,$aopt,1);
@@ -95,17 +97,26 @@ sub whichfoils {
 }
 
 sub displayfoils {
-  my (@whichopt) = @_;
+  my ($target,@whichopt) = @_;
   my $result ='';
   my $name;
   my $temp=1;
   foreach $name (@whichopt) {
-    $result.=$Apache::response::foilgroup{"$name.text"}."<br />\n";
+    $result.=$Apache::response::foilgroup{"$name.text"};
+    if ($target eq 'tex') {$result.="\\vskip 0 mm \n";} else {$result.="<br />\n";}
     my $image=$Apache::response::foilgroup{"$name.image"};
     if ($Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"} =~ /^correct/ ) {
-      $result.="<img src=\"$image\"/> <br />\n";
+      if ($target eq 'tex') {
+	$result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
+      } else {
+        $result.="<img src=\"$image\"/> <br />\n";
+      }
     } else {
-      $result.="<input type=\"image\" name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\" src=\"$image\"/> <br />\n";
+      if ($target eq 'tex') {
+	$result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
+      } else {
+        $result.="<input type=\"image\" name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\" src=\"$image\"/> <br />\n";
+      }
     }
     $temp++;
   }
@@ -154,19 +165,19 @@ sub end_foilgroup {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result='';
   my @whichopt;
-  if ($target eq 'web' || $target eq 'grade') {
+  if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
     my ($count,$max) = &getfoilcounts($parstack,$safeeval);
     if ($count>$max) { $count=$max }
     &Apache::lonxml::debug("Count is $count from $max");
     @whichopt = &whichfoils($max);
-  }
-  if ($target eq 'web') {
-    $result=&displayfoils(@whichopt);
-  }
-  if ($target eq 'grade') {
+  } elsif ($target eq 'web' || $target eq 'tex') {
+    $result=&displayfoils($target,@whichopt);
+  } elsif ($target eq 'grade') {
     if ( defined $ENV{'form.submitted'}) {
       &gradefoils(@whichopt);
     }
+  } elsif ($target eq 'edit') {
+      $result=&Apache::edit::end_table();
   }
   return $result;
 }
@@ -179,11 +190,12 @@ sub start_conceptgroup {
 
 sub end_conceptgroup {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-  $Apache::imageresponse::conceptgroup=0;  
-  if ($target eq 'web' || $target eq 'grade') {
+  $Apache::imageresponse::conceptgroup=0;
+  my $result;
+  if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
     if (defined(@{ $Apache::response::conceptgroup{'names'} })) {
       my @names = @{ $Apache::response::conceptgroup{'names'} };
-      my $pick=int(rand($#names+1));
+      my $pick=int(&Math::Random::random_uniform() * ($#names+1));
       my $name=$names[$pick];
       if (defined(@{ $Apache::response::conceptgroup{"$name.area"} })) {
 	push @{ $Apache::response::foilgroup{'names'} }, $name;
@@ -195,14 +207,16 @@ sub end_conceptgroup {
 	&Apache::lonxml::debug("Selecting $name in $concept");
       }
     }
+  } elsif ($target eq 'edit') {
+      $result=&Apache::edit::end_table();
   }
-  return '';
+  return $result;
 }
 
 $Apache::imageresponse::curname='';
 sub start_foil {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web' || $target eq 'grade') {
+  if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
     my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
     if ($name eq '') { $name=$Apache::lonxml::curdepth; }
     if ( $Apache::imageresponse::conceptgroup
@@ -217,19 +231,36 @@ sub start_foil {
 }
 
 sub end_foil {
-  my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-  return '';
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    my $result;
+    if ($target eq 'edit') {
+	$result=&Apache::edit::end_table();
+    }
+    return $result;
 }
 
 sub start_text {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web') { &Apache::lonxml::startredirection; }
-  return '';
+  my $result='';
+  if ($target eq 'web' || $target eq 'tex') { 
+     &Apache::lonxml::startredirection; 
+  } elsif ($target eq 'edit') {
+    my $descr=&Apache::lonxml::get_all_text('/text',$parser);
+    $result=&Apache::edit::tag_start($target,$token,'Task Description').
+	&Apache::edit::editfield($token->[1],$descr,'Text',60,2).
+        &Apache::edit::end_row();
+  } elsif ($target eq "modified") {
+    my $descr=&Apache::lonxml::get_all_text('/text',$parser);
+    $result=$token->[4].&Apache::edit::modifiedfield($token);
+    &Apache::lonxml::debug($result);
+  }
+  return $result;
 }
 
 sub end_text {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web') {
+  my $result;
+  if ($target eq 'web' || $target eq 'tex') {
     my $name = $Apache::imageresponse::curname;
     if ( $Apache::imageresponse::conceptgroup
        && !&Apache::response::showallfoils() ) {
@@ -237,21 +268,37 @@ sub end_text {
     } else {
       $Apache::response::foilgroup{"$name.text"} = &Apache::lonxml::endredirection;
     }
+  } elsif ($target eq 'edit') {
+      $result=&Apache::edit::end_table();
   }
-  return '';
+  return $result;
 }
 
 sub start_image {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web' || $target eq 'tex') { &Apache::lonxml::startredirection; }
-  return '';
+  my $result='';
+  if ($target eq 'web' || $target eq 'tex') { 
+      &Apache::lonxml::startredirection; 
+  } elsif ($target eq 'edit') {
+    my $bgimg=&Apache::lonxml::get_all_text('/image',$parser);
+    $result=&Apache::edit::tag_start($target,$token,'Clickable Image').
+	&Apache::edit::editline($token->[1],$bgimg,'Image Source File',40);
+    $result.=&Apache::edit::browse(undef,'textnode').' ';
+    $result.=&Apache::edit::search(undef,'textnode').
+        &Apache::edit::end_row();
+  } elsif ($target eq "modified") {
+    my $bgimg=&Apache::lonxml::get_all_text('/image',$parser);
+    $result=$token->[4].&Apache::edit::modifiedfield($token);
+    &Apache::lonxml::debug($result);
+  }
+  return $result;
 }
 
 sub end_image {
-  my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;            
-  my $currentstring = '';
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+  my $result;
+  my $name = $Apache::imageresponse::curname;
   if ($target eq 'web') {
-    my $name = $Apache::imageresponse::curname;
     my $image = &Apache::lonxml::endredirection;
     &Apache::lonxml::debug("out is $image");
     if ( $Apache::imageresponse::conceptgroup
@@ -260,6 +307,8 @@ sub end_image {
     } else {
       $Apache::response::foilgroup{"$name.image"} = $image;
     }
+  } elsif ($target eq 'edit') {
+      $result=&Apache::edit::end_table();
   } elsif ($target eq 'tex') {
     my $src = &Apache::lonxml::endredirection;
     $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
@@ -323,23 +372,35 @@ sub end_image {
     #where can we find the picture?
     if (-e $newsrc) {
 	if ($path) {
-	    $currentstring .= '\vskip 0 mm \noindent\graphicspath{{'.$path.'}}\fbox{\includegraphics[width='.$width_param.' mm]{'.$file.'}} ';
+	  $Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
 	}
     } else {
 	my $temp_file;
 	my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
 	$temp_file = Apache::File->new('>>'.$filename); 
 	print $temp_file "$src\n";
-	$currentstring .= '\vskip 0 mm \graphicspath{{/home/httpd/prtspool/}}\fbox{\includegraphics[width='.$width_param.' mm]{'.$file.'}} ';
+$Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
     }
- } 
-  return $currentstring;
+  } 
+  return $result;
 }
 
 sub start_rectangle {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web' || $target eq 'grade') { &Apache::lonxml::startredirection; }
-  return '';
+  my $result='';
+  if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') { 
+     &Apache::lonxml::startredirection; 
+  } elsif ($target eq 'edit') {
+    my $coords=&Apache::lonxml::get_all_text('/rectangle',$parser);
+    $result=&Apache::edit::tag_start($target,$token,'Rectangle').
+	&Apache::edit::editline($token->[1],$coords,'Coordinate Pairs',40).
+        &Apache::edit::end_row();
+  } elsif ($target eq "modified") {
+    my $coords=&Apache::lonxml::get_all_text('/rectangle',$parser);
+    $result=$token->[4].&Apache::edit::modifiedfield($token);
+    &Apache::lonxml::debug($result);
+  }
+  return $result;
 }
 
 sub grade_rectangle {
@@ -361,7 +422,8 @@ sub grade_rectangle {
 
 sub end_rectangle {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web' || $target eq 'grade') {
+  my $result;
+  if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
     my $name = $Apache::imageresponse::curname;
     my $area = &Apache::lonxml::endredirection;
     &Apache::lonxml::debug("out is $area for $name");
@@ -371,8 +433,10 @@ sub end_rectangle {
     } else {
       push @{ $Apache::response::foilgroup{"$name.area"} },"rectangle:$area";
     }
+  } elsif ($target eq 'edit') {
+      $result=&Apache::edit::end_table();
   }
-  return '';
+  return $result;
 }
 1;
 __END__