Qt4: really clear shortcuts - fixes #1666

modules/gui/qt4/components/preferences_widgets.cpp

@@ -1140,6 +1140,7 @@ KeySelectorControl::KeySelectorControl( vlc_object_t *_p_this,
     l->addWidget( keyContainer, line, 0, 1, 2 );
 
     CONNECT( clearButton, clicked(), shortcutValue, clear() );
+    CONNECT( clearButton, clicked(), this, setTheKey() );
     BUTTONACT( setButton, setTheKey() );
 }
 

modules/gui/qt4/components/preferences_widgets.hpp

@@ -427,7 +427,9 @@ class KeyShortcutEdit: public QLineEdit
     Q_OBJECT
 public:
     void setValue( int _value ){ value = _value; }
-    int getValue(){ return value; }
+    int getValue() const { return value; }
+public slots:
+    virtual void clear(void) { value = 0; QLineEdit::clear(); }
 private:
     int value;
     virtual void mousePressEvent( QMouseEvent *event );