* fix probable memory leaks

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27849 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/preferences/backgrounds/ImageFilePanel.cpp

@@ -30,6 +30,13 @@ ImageFilePanel::ImageFilePanel(file_panel_mode mode, BMessenger *target,
 }
 
 
+ImageFilePanel::~ImageFilePanel()
+{
+	if (RefFilter())
+		delete RefFilter();
+}
+
+
 void
 ImageFilePanel::Show()
 {

src/preferences/backgrounds/ImageFilePanel.h

@@ -36,6 +36,7 @@ class ImageFilePanel : public BFilePanel {
 			uint32 nodeFlavors = 0, bool allowMultipleSelection = true,
 			BMessage* message = NULL, BRefFilter* filter = NULL,
 			bool modal = false, bool hideWhenDone = true);
+		~ImageFilePanel();
 
 		virtual void SelectionChanged();