qt4: cleaning the singletons implementation.

modules/gui/qt4/actions_manager.hpp

@@ -66,11 +66,13 @@ public:
     }
     static void killInstance()
     {
-        if( instance ) delete instance;
+        delete instance;
+        instance = NULL;
     }
-    virtual ~ActionsManager();
 
 private:
+    virtual ~ActionsManager();
+
     static ActionsManager *instance;
     ActionsManager( intf_thread_t  *_p_i, QObject *_parent );
     intf_thread_t       *p_intf;

modules/gui/qt4/components/extended_panels.cpp

@@ -615,8 +615,7 @@ ExtV4l2::ExtV4l2( intf_thread_t *_p_intf, QWidget *_parent )
 
 ExtV4l2::~ExtV4l2()
 {
-    if( box )
-        delete box;
+    delete box;
 }
 
 void ExtV4l2::showEvent( QShowEvent *event )

modules/gui/qt4/dialogs/bookmarks.hpp

@@ -42,12 +42,13 @@ public:
     }
     static void killInstance()
     {
-        if( instance ) delete instance;
+        delete instance;
         instance = NULL;
     }
-    virtual ~BookmarksDialog();
 private:
     BookmarksDialog( intf_thread_t * );
+    virtual ~BookmarksDialog();
+
     static BookmarksDialog *instance;
     void update();
     QTreeWidget *bookmarksList;

modules/gui/qt4/dialogs/extended.hpp

@@ -42,13 +42,14 @@ public:
     }
     static void killInstance()
     {
-        if( instance ) delete instance;
+        delete instance;
         instance = NULL;
     }
-    virtual ~ExtendedDialog();
     void showTab( int i );
 private:
     ExtendedDialog( intf_thread_t * );
+    virtual ~ExtendedDialog();
+
     static ExtendedDialog *instance;
 
     SyncControls *syncW;

modules/gui/qt4/dialogs/help.hpp

@@ -50,12 +50,14 @@ public:
         return instance;
     }
     static void killInstance()
-    { if( instance ) delete instance; instance = NULL;}
-    virtual ~HelpDialog();
+    { delete instance; instance = NULL;}
 
 private:
     HelpDialog( intf_thread_t * );
+    virtual ~HelpDialog();
+
     static HelpDialog *instance;
+
 public slots:
     void close();
 };
@@ -99,7 +101,7 @@ public:
         return instance;
     }
     static void killInstance()
-    { if( instance ) delete instance; instance = NULL;}
+    { delete instance; instance = NULL;}
 
     void updateNotify( bool );
 

modules/gui/qt4/dialogs/mediainfo.hpp

@@ -45,18 +45,18 @@ public:
 
     static void killInstance()
     {
-        if( instance ) delete instance;
+        delete instance;
         instance = NULL;
     }
 
-    virtual ~MediaInfoDialog();
-
     void showTab( int );
 #if 0
     void setInput( input_item_t * );
 #endif
 
 private:
+    virtual ~MediaInfoDialog();
+
     static MediaInfoDialog *instance;
     bool isMainInputInfo;
 

modules/gui/qt4/dialogs/messages.hpp

@@ -47,14 +47,15 @@ public:
     }
     static void killInstance()
     {
-        if( instance ) delete instance;
+        delete instance;
         instance = NULL;
     }
 
-    virtual ~MessagesDialog();
 
 private:
     MessagesDialog( intf_thread_t * );
+    virtual ~MessagesDialog();
+
     static MessagesDialog *instance;
     QTabWidget *mainTab;
     QSpinBox *verbosityBox;

modules/gui/qt4/dialogs/open.hpp

@@ -64,10 +64,9 @@ public:
 
     static void killInstance()
     {
-        if( instance ) delete instance;
+        delete instance;
         instance = NULL;
     }
-    virtual ~OpenDialog();
 
     void showTab( int = OPEN_FILE_TAB );
     QString getMRL( bool b = true );
@@ -82,6 +81,7 @@ public slots:
 private:
     OpenDialog( QWidget *parent, intf_thread_t *, bool b_selectMode,
                 int _action_flag = 0, bool b_pl = true );
+    virtual ~OpenDialog();
 
     static OpenDialog *instance;
     input_thread_t *p_input;

modules/gui/qt4/dialogs/playlist.hpp

@@ -48,12 +48,12 @@ public:
     }
     static void killInstance()
     {
-        if( instance ) delete instance;
+        delete instance;
         instance = NULL;
     }
-    virtual ~PlaylistDialog();
 private:
     PlaylistDialog( intf_thread_t * );
+    virtual ~PlaylistDialog();
 
     void dropEvent( QDropEvent *);
     void dragEnterEvent( QDragEnterEvent * );

modules/gui/qt4/dialogs/toolbar.hpp

@@ -69,13 +69,14 @@ public:
         return instance;
     }
     static void killInstance()
-    { if( instance ) delete instance; instance = NULL;}
-    virtual ~ToolbarEditDialog();
+    { delete instance; instance = NULL;}
     int getOptions() { return flatBox->isChecked() * WIDGET_FLAT +
                         bigBox->isChecked() * WIDGET_BIG +
                         !shinyBox->isChecked() * WIDGET_SHINY; }
 private:
     ToolbarEditDialog( intf_thread_t * );
+    virtual ~ToolbarEditDialog();
+
     static ToolbarEditDialog *instance;
 
     QCheckBox *flatBox, *bigBox, *shinyBox;

modules/gui/qt4/dialogs_provider.hpp

@@ -103,14 +103,13 @@ public:
     }
     static void killInstance()
     {
-        if( instance ) delete instance;
+        delete instance;
         instance = NULL;
     }
     static bool isAlive()
     {
         return ( instance != NULL );
     }
-    virtual ~DialogsProvider();
 
     QStringList showSimpleOpen( QString help = QString(),
                                 int filters = EXT_FILTER_MEDIA |
@@ -126,8 +125,10 @@ protected:
 
 private:
     DialogsProvider( intf_thread_t *);
-    intf_thread_t *p_intf;
+    virtual ~DialogsProvider();
     static DialogsProvider *instance;
+
+    intf_thread_t *p_intf;
     bool b_isDying;
 
     void openDialog( int );

modules/gui/qt4/input_manager.hpp

@@ -213,9 +213,9 @@ public:
     }
     static void killInstance()
     {
-        if( instance ) delete instance;
+        delete instance;
+        instance = NULL;
     }
-    virtual ~MainInputManager();
 
     input_thread_t *getInput() { return p_input; };
     InputManager *getIM() { return im; };
@@ -225,6 +225,8 @@ public:
 
 private:
     MainInputManager( intf_thread_t * );
+    virtual ~MainInputManager();
+
     static MainInputManager *instance;
 
     void customEvent( QEvent * );

modules/gui/qt4/main_interface.cpp

@@ -291,7 +291,7 @@ MainInterface::~MainInterface()
     ActionsManager::killInstance();
 
     /* Delete the FSC controller */
-    if( fullscreenControls ) delete fullscreenControls;
+    delete fullscreenControls;
 
     /* Save states */
     settings->beginGroup( "MainWindow" );

modules/gui/qt4/recents.hpp

@@ -47,10 +47,9 @@ public:
     }
     static void killInstance()
     {
-        if( instance ) delete instance;
+        delete instance;
         instance = NULL;
     }
-    virtual ~RecentsMRL();
 
     void addRecent( const QString & );
     QList<QString> recents();
@@ -58,9 +57,12 @@ public:
 
 private:
     RecentsMRL( intf_thread_t* _p_intf );
+    virtual ~RecentsMRL();
+
+    static RecentsMRL *instance;
+
     void load();
     void save();
-    static RecentsMRL *instance;
     intf_thread_t* p_intf;
     QList<QString> *stack;
     bool isActive;