MDL-32065 Allow feedback images to be themed

mod/feedback/edit.php

@@ -349,10 +349,10 @@ if ($do_show == 'edit') {
                 echo '<span class="feedback_item_command_toggle">';
                 if ($feedbackitem->required == 1) {
                     $buttontitle = get_string('switch_item_to_not_required', 'feedback');
-                    $buttonimg = 'pics/required.gif';
+                    $buttonimg = $OUTPUT->pix_url('required', 'feedback');
                 } else {
                     $buttontitle = get_string('switch_item_to_required', 'feedback');
-                    $buttonimg = 'pics/notrequired.gif';
+                    $buttonimg = $OUTPUT->pix_url('notrequired', 'feedback');
                 }
                 $urlparams = array('switchitemrequired'=>$feedbackitem->id);
                 $requiredurl = new moodle_url($url, $urlparams);

mod/feedback/item/multichoice/lib.php

@@ -216,6 +216,7 @@ class feedback_item_multichoice extends feedback_item_base {
     }
 
     public function print_analysed($item, $itemnr = '', $groupid = false, $courseid = false) {
+        global $OUTPUT;
         $sep_dec = get_string('separator_decimal', 'feedback');
         if (substr($sep_dec, 0, 2) == '[[') {
             $sep_dec = FEEDBACK_DECIMAL;
@@ -237,7 +238,7 @@ class feedback_item_multichoice extends feedback_item_base {
             $pixnr = 0;
             foreach ($analysed_vals as $val) {
                 $intvalue = $pixnr % 10;
-                $pix = "pics/$intvalue.gif";
+                $pix = $OUTPUT->pix_url('multichoice/' . $intvalue, 'feedback');
                 $pixnr++;
                 $pixwidth = intval($val->quotient * FEEDBACK_MAX_PIX_LENGTH);
                 $quotient = number_format(($val->quotient * 100), 2, $sep_dec, $sep_thous);

mod/feedback/item/multichoicerated/lib.php

@@ -192,6 +192,7 @@ class feedback_item_multichoicerated extends feedback_item_base {
     }
 
     public function print_analysed($item, $itemnr = '', $groupid = false, $courseid = false) {
+        global $OUTPUT;
         $sep_dec = get_string('separator_decimal', 'feedback');
         if (substr($sep_dec, 0, 2) == '[[') {
             $sep_dec = FEEDBACK_DECIMAL;
@@ -212,7 +213,7 @@ class feedback_item_multichoicerated extends feedback_item_base {
             $avg = 0.0;
             foreach ($analysed_vals as $val) {
                 $intvalue = $pixnr % 10;
-                $pix = "pics/$intvalue.gif";
+                $pix = $OUTPUT->pix_url('multichoice/' . $intvalue, 'feedback');
                 $pixnr++;
                 $pixwidth = intval($val->quotient * FEEDBACK_MAX_PIX_LENGTH);