Qt: use dynamic ID for DialogEvent

modules/gui/qt4/dialogs_provider.cpp

@@ -117,7 +117,7 @@ void DialogsProvider::quit()
 
 void DialogsProvider::customEvent( QEvent *event )
 {
-    if( event->type() == (int)DialogEvent_Type )
+    if( event->type() == DialogEvent::DialogEvent_Type )
     {
         DialogEvent *de = static_cast<DialogEvent*>(event);
         switch( de->i_dialog )
@@ -178,6 +178,9 @@ void DialogsProvider::customEvent( QEvent *event )
 /****************************************************************************
  * Individual simple dialogs
  ****************************************************************************/
+const QEvent::Type DialogEvent::DialogEvent_Type =
+        (QEvent::Type)QEvent::registerEventType();
+
 void DialogsProvider::playlistDialog()
 {
     PlaylistDialog::getInstance( p_intf )->toggleVisible();

modules/gui/qt4/dialogs_provider.hpp

@@ -57,13 +57,6 @@ enum {
     EXT_FILTER_SUBTITLE  =  0x10,
 };
 
-enum {
-    DialogEvent_Type = QEvent::User + DialogEventTypeOffset + 1,
-    //PLUndockEvent_Type = QEvent::User + DialogEventType + 2;
-    //PLDockEvent_Type = QEvent::User + DialogEventType + 3;
-    SetVideoOnTopEvent_Type = QEvent::User + DialogEventTypeOffset + 4,
-};
-
 class QEvent;
 class QSignalMapper;
 class VLCMenuBar;
@@ -186,8 +179,9 @@ signals:
 class DialogEvent : public QEvent
 {
 public:
+    static const QEvent::Type DialogEvent_Type;
     DialogEvent( int _i_dialog, int _i_arg, intf_dialog_args_t *_p_arg ) :
-                 QEvent( (QEvent::Type)(DialogEvent_Type) )
+                 QEvent( DialogEvent_Type )
     {
         i_dialog = _i_dialog;
         i_arg = _i_arg;