--- loncom/homework/edit.pm	2003/05/04 22:14:53	1.48
+++ loncom/homework/edit.pm	2003/05/06 11:54:08	1.49
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # edit mode helpers
 #
-# $Id: edit.pm,v 1.48 2003/05/04 22:14:53 albertel Exp $
+# $Id: edit.pm,v 1.49 2003/05/06 11:54:08 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -40,6 +40,9 @@ use HTML::Entities();
 # depth of nesting of edit
 $Apache::edit::colordepth=0;
 @Apache::edit::inserttag=();
+# image-type responses: active background image and curdepth at definition
+$Apache::edit::bgimgsrc='';
+$Apache::edit::bgimgsrccurdepth='';
 
 sub initialize_edit {
   $Apache::edit::colordepth=0;
@@ -565,6 +568,64 @@ sub select_or_text_arg {
     return $result;
 }
 
+#----------------------------------------------------- image coordinates
+# single image coordinates, x, y 
+sub entercoords {
+    my ($idx,,$idy,$mode,$width,$height) = @_;
+    unless ($Apache::edit::bgimgsrc) { return ''; }
+    if ($idx) { $idx.='_'; }
+    if ($idy) { $idy.='_'; }
+    my $bgfile=&Apache::lonnet::escape($Apache::edit::bgimgsrc);
+    my $form    = 'lonhomework';
+    my $element;
+    if (! defined($mode) || $mode eq 'attribute') {
+        $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth");
+    } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
+        $element = &Apache::lonnet::escape('homework_edit_'.
+                                           $Apache::lonxml::curdepth);
+    }
+    my $formheight='';
+    if ($height) {
+	$formheight='&formheight='.$height.'_'.$Apache::edit::bgimgsrccurdepth;
+    }
+    my $formwidth='';
+    if ($width) {
+	$formwidth='&formwidth='.$width.'_'.$Apache::edit::bgimgsrccurdepth;
+    }
+    my $result = <<"ENDBUTTON";
+<a href="/cgi-bin/imagechoice.pl?formname=$form&file=$bgfile&formx=$idx$element&formy=$idy$element$formheight$formwidth"
+target="imagechoice">Click Coordinates</a>
+ENDBUTTON
+    return $result;
+}
+
+# coordinate pair (x1,y1)-(x2,y2)
+sub entercoordpair {
+    my ($id,$mode,$width,$height) = @_;
+    unless ($Apache::edit::bgimgsrc) { return ''; }
+    my $bgfile=&Apache::lonnet::escape($Apache::edit::bgimgsrc);
+    my $form    = 'lonhomework';
+    my $element;
+    if (! defined($mode) || $mode eq 'attribute') {
+        $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
+    } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
+        $element = &Apache::lonnet::escape('homework_edit_'.
+                                           $Apache::lonxml::curdepth);
+    }
+    my $formheight='';
+    if ($height) {
+	$formheight='&formheight='.$height.'_'.$Apache::edit::bgimgsrccurdepth;
+    }
+    my $formwidth='';
+    if ($width) {
+	$formwidth='&formwidth='.$width.'_'.$Apache::edit::bgimgsrccurdepth;
+    }
+    my $result = <<"ENDBUTTON";
+<a href="/cgi-bin/imagechoice.pl?mode=pair&formname=$form&file=$bgfile$formheight$formwidth"
+target="imagechoice">Click Coordinate Pair</a>
+ENDBUTTON
+    return $result;
+}
 #----------------------------------------------------- browse
 sub browse {
     # insert a link to call up the filesystem browser (lonindexer)
@@ -572,7 +633,7 @@ sub browse {
     my $form    = 'lonhomework';
     my $element;
     if (! defined($mode) || $mode eq 'attribute') {
-        $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth.$id");
+        $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
         $element = &Apache::lonnet::escape('homework_edit_'.
                                            $Apache::lonxml::curdepth);
@@ -586,9 +647,15 @@ ENDBUTTON
 #----------------------------------------------------- browse
 sub search {
     # insert a link to call up the filesystem browser (lonindexer)
-    $_ = shift;
+    my ($id, $mode) = @_;
     my $form    = 'lonhomework';
-    my $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth.$_");
+    my $element;
+    if (! defined($mode) || $mode eq 'attribute') {
+        $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
+    } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
+        $element = &Apache::lonnet::escape('homework_edit_'.
+                                           $Apache::lonxml::curdepth);
+    }
     my $result = <<"ENDBUTTON";
 <a href=\"javascript:opensearcher('$form','$element')\"\>Search</a>
 ENDBUTTON