[LON-CAPA-cvs] cvs: loncom(BZ4492) /homework radiobuttonresponse.pm

foxr foxr at source.lon-capa.org
Tue Jan 24 07:05:12 EST 2012


foxr		Tue Jan 24 12:05:12 2012 EDT

  Modified files:              (Branch: BZ4492)
    /loncom/homework	radiobuttonresponse.pm 
  Log:
  BZ 4492 - Get exam mode printing to understand 'horizontal' orientation.
  
  
-------------- next part --------------
Index: loncom/homework/radiobuttonresponse.pm
diff -u loncom/homework/radiobuttonresponse.pm:1.153.6.4 loncom/homework/radiobuttonresponse.pm:1.153.6.5
--- loncom/homework/radiobuttonresponse.pm:1.153.6.4	Mon Jan 23 12:00:13 2012
+++ loncom/homework/radiobuttonresponse.pm	Tue Jan 24 12:05:12 2012
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # mutliple choice style responses
 #
-# $Id: radiobuttonresponse.pm,v 1.153.6.4 2012/01/23 12:00:13 foxr Exp $
+# $Id: radiobuttonresponse.pm,v 1.153.6.5 2012/01/24 12:05:12 foxr Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -31,6 +31,7 @@
 use Apache::lonlocal;
 use Apache::lonnet;
 use Apache::response;
+use Apache::caparesponse;
 
 my $default_bubbles_per_line = 10;
 my @alphabet      = ( 'A' .. 'Z' ); # Foil labels.
@@ -375,7 +376,7 @@
 }
 
 ##
-sub displayallfoils {
+sub displayallfoils{
     my ( $direction, $target ) = @_;
     my $result;
     &Apache::lonxml::debug("survey style display");
@@ -384,6 +385,31 @@
         @names = @{ $Apache::response::foilgroup{'names'} };
     }
 
+    # Figure out how to bracket the list of foils for
+    # the TeX target:
+    #
+
+    my $begin_environment;
+    my $end_environment;
+    
+    if ($target eq 'tex') {
+
+	# Decide how to bracket the list of foils:
+
+
+        if (   $env{'form.pdfFormFields'} eq 'yes'
+            && $Apache::inputtags::status[-1] eq 'CAN_ANSWER' )
+        {
+            $begin_environment = '\begin{itemize}';
+	    $end_environment   = '\end{itemize}';
+        }
+        else {
+            $begin_environment = '\begin{enumerate}';
+	    $end_environment   = '\end{enumerate}';
+        }	
+	$result .= $begin_environment;
+    }
+
     my $temp = 0;
     my $i    = 0;
     my $id   = $Apache::inputtags::response['-1'];
@@ -536,6 +562,12 @@
     if ( ( $direction eq 'horizontal' ) && ( $target ne 'tex' ) ) {
         $result .= '</tr></table>';
     }
+
+    # Close tex bracketing:
+
+    if ($target eq 'tex') {
+	$result .= $end_environment;
+    }
     return $result;
 }
 
@@ -934,78 +966,100 @@
 ##
 #  Display foils in exam mode for latex
 #
-# @param $whichfoils - Reference to an array that contains the foil names to display
+# @param $whichfoils       - Reference to an array that contains the foil names to display
 # @param $bubbles_per_line - Number of bubbles on a line.
+# @param $direction        - Rendering direction 'horizontal' is what we're looking for.
+# @param $vbegin           - Start latex fragment in vertical rendering.
+# @param $vend             - End latex fragmentin vertical rendering.
 #
 # @return string
 # @return the latex rendering of the exam problem.
 #
-# @note The direction is not honored for exams.   The lines reflect the number of
-#       bubbles on an exam sheet.
 #
 sub display_latex_exam {
-    my ($whichfoils, $bubbles_per_line) = @_;
+    my ($whichfoils, $bubbles_per_line, $direction, $vbegin, $vend) = @_;
     my $result;
     my $numlines;
     my $bubble_number = 0;
     my $line          = 0;
     my $i             = 0;
 
-    # This section puts out the prefix that tells the user
-    # (if necessary) to only choose one bubble in the next n lines
-    # for problems with more than one line worth of bubbles in the grid sheet:
-
-    my $numitems = scalar( @{$whichfoils} );
-    $numlines = int( $numitems / $bubbles_per_line );
-    if ( ( $numitems % $bubbles_per_line ) != 0 ) {
-	$numlines++;
-    }
-    if ( $numlines < 1 ) {
-	$numlines = 1;
-    }
-    if ( $numlines > 1 ) {
-	my $linetext;
-	for ( my $i = 0 ; $i < $numlines ; $i++ ) {
-	    $linetext .= $Apache::lonxml::counter + $i . ', ';
+    &Apache::lonnet::logthis("LaTeX exam:  $direction  $vbegin $vend");
+
+    if ($direction eq  'horizontal') {
+
+	# Marshall the display text for each foil and turn things over to
+	# Apache::response::make_horizontal_bubbles:
+
+	my @foil_texts;
+	foreach my $name (@{$whichfoils}) {
+	    push(@foil_texts, $Apache::response::foilgroup{$name . '.text'});
 	}
-	$linetext =~ s/,\s$//;
-	$result .=
-	    '\item[\small {\textbf{'
-	    . $linetext . '}}]'
-	    . ' {\footnotesize '
-	    . &mt( '(Bubble once in [_1] lines)', $numlines )
-	    . '} \hspace*{\fill} \\\\';
-    }
-    else {
-	$result .= '\item[\textbf{' . $Apache::lonxml::counter . '}.]';
-    }
+	$result .= &Apache::caparesponse::make_horizontal_latex_bubbles(
+	    $whichfoils, \@foil_texts, '$\bigcirc$');
 
-    # Now output the bubbles themselves:
 
-    foreach my $name (@{$whichfoils}) {
-	if ( $bubble_number >= $bubbles_per_line ) {
-	    $line++;
-	    $i             = 0;
-	    $bubble_number = 0;
+    } else {
+	$result .= $vbegin;
+	
+	# This section puts out the prefix that tells the user
+	# (if necessary) to only choose one bubble in the next n lines
+	# for problems with more than one line worth of bubbles in the grid sheet:
+	
+	my $numitems = scalar( @{$whichfoils} );
+	$numlines = int( $numitems / $bubbles_per_line );
+	if ( ( $numitems % $bubbles_per_line ) != 0 ) {
+	    $numlines++;
+	}
+	if ( $numlines < 1 ) {
+	    $numlines = 1;
 	}
-	my $identifier;
 	if ( $numlines > 1 ) {
-	    $identifier = $Apache::lonxml::counter + $line;
+	    my $linetext;
+	    for ( my $i = 0 ; $i < $numlines ; $i++ ) {
+		$linetext .= $Apache::lonxml::counter + $i . ', ';
+	    }
+	    $linetext =~ s/,\s$//;
+	    $result .=
+		'\item[\small {\textbf{'
+		. $linetext . '}}]'
+		. ' {\footnotesize '
+		. &mt( '(Bubble once in [_1] lines)', $numlines )
+		. '} \hspace*{\fill} \\\\';
 	}
-	$result .=
-	    '{\small \textbf{'
-	    . $identifier
-	    . $alphabet[$i]
-	    . '}}$\bigcirc$'
-	    . $Apache::response::foilgroup{ $name . '.text' }
-	. '\\\\';    #' stupid emacs -- it thinks it needs that apostrophe to close the quote
+	else {
+	    $result .= '\item[\textbf{' . $Apache::lonxml::counter . '}.]';
+	}
+	
+	# Now output the bubbles themselves:
+	
+	foreach my $name (@{$whichfoils}) {
+	    if ( $bubble_number >= $bubbles_per_line ) {
+		$line++;
+		$i             = 0;
+		$bubble_number = 0;
+	    }
+	    my $identifier;
+	    if ( $numlines > 1 ) {
+		$identifier = $Apache::lonxml::counter + $line;
+	    }
+	    $result .=
+		'{\small \textbf{'
+		. $identifier
+		. $alphabet[$i]
+		. '}}$\bigcirc$'
+		. $Apache::response::foilgroup{ $name . '.text' }
+	    . '\\\\';    #' stupid emacs -- it thinks it needs that apostrophe to close the quote
+	    
+	    $i++;
+	    $bubble_number++;
+	}
+	$result .= $vend
 
-	$i++;
-	$bubble_number++;
-    }
-    
-    return $result;
+    }	
 
+    return $result;
+    
 }
 
 ##
@@ -1036,6 +1090,59 @@
 
 
 ##
+#  Render foils for a PDF form. This is a variant of tex rednering that provides
+#  sufficient markup that the final PDF is a form that can be filled in online,
+#  or offline.
+#
+# @param $whichfoils - References an array of foils to display in the order in which
+#                     they should be displayed.
+# @param $direction  - Rendering direction.  'horiztonal' means inputs are laid out
+#                      horizontally otherwise they are stacked vertically.
+#
+# @return string
+# @retval String containing the rendering of the resource.
+#
+sub display_pdf_form {
+    my ($whichfoils) = @_;
+    my $temp = 0;
+    my $result;
+
+    foreach my $name ( @{$whichfoils} ) {
+	
+	my $fieldname =
+	    $env{'request.symb'} 
+	. '&part_'
+	    . $Apache::inputtags::part
+	    . '&radiobuttonresponse'
+	    . '&HWVAL_'
+	    . $Apache::inputtags::response['-1'];
+	$result .= '\item[{'
+	    . &Apache::lonxml::print_pdf_radiobutton( $fieldname,
+						      $temp )
+	    . '}]'
+	    . $Apache::response::foilgroup{ $name . '.text' }
+	. "\n";
+	
+	$temp++;
+    }
+
+    return $result;
+}
+
+
+##
+# Display selected foils:  This is really just a dispatchter to appropriate renderers
+#  
+# @param $target   - Target (e.g. 'tex'...).
+# @param $answer   - True if answers should be shown.
+# @param $whichfoils - Array of foil selectors that indicate which foils shouild be
+#                      rendered, in rendering order.
+# @param $direction- Rendering direction ('horizontal' is the one we look for,
+#                    otherwise foils are rendered one per line vertically.
+# @param $bubbles_per_line - number of exam bubbles per line.
+#
+# @return string
+# @retval The rendered problem.
 
 sub displayfoils {
     my ( $target, $answer, $whichfoils, $direction, $bubbles_per_line ) = @_;
@@ -1092,9 +1199,10 @@
 	
 	if ( ( $Apache::lonhomework::type eq 'exam' ) )
 	{
-	    $result .= $begin_environment;
-	    $result .= &display_latex_exam($whichfoils, $bubbles_per_line);
-	    $result .= $end_environment;
+	    $result .= &display_latex_exam(
+		$whichfoils, $bubbles_per_line, $direction, $begin_environment, 
+		$end_environment);
+
 	    $result .= '\vskip 0mm ';
 	    
 	} else {	    
@@ -1107,24 +1215,7 @@
 		    && ($Apache::inputtags::status[-1] eq 'CAN_ANSWER'))
 	    {
 		$result .= $begin_environment;
-		foreach my $name ( @{$whichfoils} ) {
-		    
-		    my $fieldname =
-			$env{'request.symb'} 
-		        . '&part_'
-			. $Apache::inputtags::part
-			. '&radiobuttonresponse'
-			. '&HWVAL_'
-			. $Apache::inputtags::response['-1'];
-		    $result .= '\item[{'
-			. &Apache::lonxml::print_pdf_radiobutton( $fieldname,
-								  $temp )
-			. '}]'
-			. $Apache::response::foilgroup{ $name . '.text' }
-		    . "\n";
-		    
-		    $temp++;
-		}
+		$result .= &display_pdf_form($whichfoils, $direction);
 		$result .= $end_environment;
 	    } else {
 		$result .= &display_latex(


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