Fix caption inclusion

lib/Alchemy/Phrasea/Out/Module/PDF.php

@@ -91,19 +91,19 @@ class PDF
         $this->pdf = $pdf;
 
         switch ($layout) {
-            case "preview":
+            case self::LAYOUT_PREVIEW:
-                $this->print_preview(false);
+                $this->print_preview(false, false);
                 break;
-            case "previewCaption":
+            case self::LAYOUT_PREVIEWCAPTION:
-                $this->print_preview(false);
+                $this->print_preview(false, true);
                 break;
-            case "previewCaptionTdm":
+            case self::LAYOUT_PREVIEWCAPTIONTDM:
-                $this->print_preview(true);
+                $this->print_preview(true, true);
                 break;
-            case "thumbnailList":
+            case self::LAYOUT_THUMBNAILLIST:
                 $this->print_thumbnailList();
                 break;
-            case "thumbnailGrid":
+            case self::LAYOUT_THUMBNAILGRID:
                 $this->print_thumbnailGrid();
                 break;
         }
@@ -306,7 +306,7 @@ class PDF
         $this->pdf->SetLeftMargin($lmargin);
     }
 
-    protected function print_preview($withtdm)
+    protected function print_preview($withtdm, $write_caption)
     {
         $core = \bootstrap::getCore();
         $appbox = \appbox::get_instance($core);
@@ -454,10 +454,12 @@ class PDF
             $this->pdf->SetXY($lmargin, $y += ( $himg + 5));
 
             $nf = 0;
+            if ($write_caption) {
                 foreach ($rec->get_caption()->get_fields() as $field) {
                     /* @var $field caption_field */
-                if ($nf > 0)
+                    if ($nf > 0) {
                         $this->pdf->Write(6, "\n");
+                    }
 
                     $this->pdf->SetFont(PhraseaPDF::FONT, 'B', 12);
                     $this->pdf->Write(5, $field->get_name() . " : ");
@@ -475,6 +477,7 @@ class PDF
                     $nf++;
                 }
             }
+        }
 
         return;
     }