--- loncom/homework/randomlylabel.pm	2024/04/05 02:31:23	1.34
+++ loncom/homework/randomlylabel.pm	2024/04/09 18:47:23	1.37
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # randomlabel.png: composite together text and images into 1 image
 #
-# $Id: randomlylabel.pm,v 1.34 2024/04/05 02:31:23 raeburn Exp $
+# $Id: randomlylabel.pm,v 1.37 2024/04/09 18:47:23 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -94,7 +94,7 @@ The argumants for the possible object ty
 
 x1:y1:x2:y2:color:thickness
 
-=item RECTANGLE 
+=item RECTANGLE
 
 x1:y1:x2:y2:color:thickness:filled
 
@@ -120,7 +120,7 @@ x:y:file:transparent:srcX:srcY:destW:des
 
 =over 4
 
-=item srcX,srcY,srcW,srcH 
+=item srcX,srcY,srcW,srcH
 
 the start and extant of the region in file to copy to x,y with width/height
            destW destH
@@ -146,13 +146,19 @@ installed TTF font and point size
 
 either B<horizontal> or B<vertical>
 
+=item rotation
+
+number of degrees to rotate the text, relative to the horizontal.
+only used if font attribute is set to a freetype font (e.g., helvetica 12),
+and in that case, if set to a valid value, overrides value set for direction.
+
 =back
 
 =item  POLYGON
 
 color:width:open:filled
 
-=over 4 
+=over 4
 
 =item open
 
@@ -171,7 +177,7 @@ The possible values for this for the dif
 
 =over 4
 
-=item POLYGON 
+=item POLYGON
 
 a list of coords in the form
 
@@ -207,7 +213,7 @@ use GD::Polyline();
 use Apache::lonnet;
 use lib '/home/httpd/lib/perl/';
 use LONCAPA;
-use LONCAPA::LWPReq; 
+use LONCAPA::LWPReq;
 
 #
 # Note: Math::Trig is included in the standard perl package for many distros.
@@ -296,8 +302,6 @@ sub add_click {
 
 sub handler {
     my $r = shift;
-    $r->content_type('image/png');
-    $r->send_http_header;
 
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
 
@@ -307,6 +311,22 @@ sub handler {
     } else {
 	$prefix="cgi.$env{'form.token'}.";
     }
+    my $epsfile;
+    if (defined($env{$prefix."EPSFILE"})) {
+        my $user = $env{'user.name'}.'_'.$env{'user.domain'};
+        if ($env{$prefix."EPSFILE"} =~ /^\Q$user\E_\d+_\d+_\d+_drawimage\.eps$/) {
+            $epsfile = $Apache::lonnet::perlvar{'lonPrtDir'}.'/'.$env{$prefix."EPSFILE"};
+        } else {
+            &Apache::lonnet::logthis('Unable to create eps file for image object for -'.
+                                     $env{'form.token'}.'- for '.$user.' as EPSFILE has '.
+                                     'unexpected value');
+            return OK;
+        }
+    }
+    unless ($epsfile) {
+        $r->content_type('image/png');
+        $r->send_http_header;
+    }
 
     my $image;
     if (defined($env{$prefix."BGIMG"})) {
@@ -372,7 +392,6 @@ sub handler {
 		$polygon->addPt($x,$y);
 		$added++;
 	    }
-	    
 	    $image->setThickness($width);
 	    if ($added) {
 		if ($open && lc($open) ne 'no') {
@@ -466,7 +485,16 @@ sub handler {
     }
     if (exists($env{'form.clickdata'})) { &add_click($image); }
     $image->setThickness(1);
-    $r->print($image->png);
+    if ($epsfile) {
+        if (open(my $pipe, "| convert png:- $epsfile")) {
+            print $pipe $image->png;
+            close($pipe);
+        } else {
+            &Apache::lonnet::logthis("randomlylabel unable to open pipe to convert png to eps");
+        }
+    } else {
+        $r->print($image->png);
+    }
     return OK;
 }