Comment on virtual method and maybe the lack of them

2 files changed, 8 insertions, 3 deletions

diff --git a/libopie2/opieui/okeyconfigwidget.h b/libopie2/opieui/okeyconfigwidget.h
index d11054c..3d2260c 100644
--- a/libopie2/opieui/okeyconfigwidget.h
+++ b/libopie2/opieui/okeyconfigwidget.h
@@ -1,137 +1,141 @@
 /*
  * Copyright (C) 2004
  * LGPL v2  zecke@handhelds.org
  */
 
 
 #ifndef ODP_KEY_CONFIG_WIDGET_H
 #define ODP_KEY_CONFIG_WIDGET_H
 
 #include <opie2/okeyconfigmanager.h>
 
 #include <qhbox.h>
 
 
 class QKeyEvent;
 class QLabel;
 class QPushButton;
 class QListViewItem;
 class QRadioButton;
 class QTimer;
 
 namespace Opie {
 namespace Ui {
 namespace Internal {
     class OKeyConfigWidgetPrivate;
     typedef QValueList<OKeyConfigWidgetPrivate> OKeyConfigWidgetPrivateList;
     class OKeyListViewItem;
 }
     class OListViewItem;
     class OListView;
 
 
 /**
  * With this Widget you can let the Keyboard Shortcuts
  * be configured by the user.
  * There are two ways you can use this widget. Either in a tab were
  * all changes are immediately getting into effect or in a queue
  * were you ask for saving. Save won't write the data but only set
- * it to the OKeyConfigManager
+ * it to the OKeyConfigManager.
+ *
+ * Normally subclassing this widget does not make much sense as the widget content
+ * as such is immutable. If I'm wrong I'm willing to learn and you could mail me which
+ * functions do make sense with virtual on it (zecke@handhelds.org).
  *
  * @since 1.2
  */
 class OKeyConfigWidget : public QWidget {
     Q_OBJECT
 
 public:
     /**
      * Immediate Apply the change directly to the underlying OKeyConfigManager
      * Queue Save all items and then apply when you save()
      */
     enum ChangeMode { Imediate, Queue };
     OKeyConfigWidget( QWidget* parent = 0, const char* name = 0, WFlags fl = 0 );
-    ~OKeyConfigWidget();
+    virtual ~OKeyConfigWidget();
 
     void setChangeMode( enum ChangeMode );
     ChangeMode changeMode()const;
 
     void insert( const QString& name, Opie::Core::OKeyConfigManager* );
 
     void load();
     void save();
 
-private slots:
+protected slots:
     void slotListViewItem(  QListViewItem* );
     void slotNoKey();
     void slotDefaultKey();
     void slotCustomKey();
     void slotConfigure();
 
 private:
     static bool sanityCheck(  Opie::Ui::Internal::OKeyListViewItem* man,
                               const Opie::Core::OKeyPair& newItem );
     void updateItem( Opie::Ui::Internal::OKeyListViewItem* man,
                      const Opie::Core::OKeyPair& newItem);
     void initUi();
     Opie::Ui::OListView *m_view;
     Opie::Ui::Internal::OKeyConfigWidgetPrivateList m_list;
     QLabel *m_lbl;
     QPushButton *m_btn;
     QRadioButton *m_def, *m_cus, *m_none;
     QWidget* m_box;
     ChangeMode m_mode;
     class Private;
     Private *d;
 };
 
 
 /**
  * This is a small dialog that allows you to
  * capture a key sequence.
  * If you want it to close after a key was captured you
  * can use this code snippet.
  *
  * \code
  *  OKeyChooserConfigDialog diag(0,0,true);
  *  connect(&diag,SIGNAL(keyCaptured()),
  *         this,SLOT(accept()));
  *  if( QPEApplication::execDialog(&diag) == QDialog::Accept ){
  *     take_the_key_and_do_something
  *  }
  *
  * \endcode
  *
  */
 class OKeyChooserConfigDialog : public QDialog {
     Q_OBJECT
 public:
     OKeyChooserConfigDialog( QWidget* parent = 0, const char* name = 0, bool modal = false, WFlags fl = 0 );
     ~OKeyChooserConfigDialog();
 
     Opie::Core::OKeyPair keyPair()const;
 
 protected:
     void keyPressEvent( QKeyEvent* );
     void keyReleaseEvent( QKeyEvent* );
 
 signals:
     void keyCaptured();
 
 private slots:
     void  slotTimeUp();
 
 private:
     QTimer *m_timer;
     QLabel *m_lbl;
     bool m_virtKey : 1;
     Opie::Core::OKeyPair m_keyPair;
     int m_key, m_mod;
     class Private;
     Private *d;
 };
 
 }
 }
 
 
 #endif
diff --git a/libopie2/opieui/otaskbarapplet.h b/libopie2/opieui/otaskbarapplet.h
index ec7b9c4..77cc461 100644
--- a/libopie2/opieui/otaskbarapplet.h
+++ b/libopie2/opieui/otaskbarapplet.h
@@ -1,129 +1,130 @@
 /*
                              This file is part of the Opie Project
 
                              Copyright (C) 2003 Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
               =.
             .=l.
            .>+-=
  _;:,     .>    :=|.         This program is free software; you can
 .> <`_,   >  .   <=          redistribute it and/or  modify it under
 :`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
 .="- .-=="i,     .._         License as published by the Free Software
  - .   .-<_>     .<>         Foundation; either version 2 of the License,
      ._= =}       :          or (at your option) any later version.
     .%`+i>       _;_.
     .i_,=:_.      -<s.       This program is distributed in the hope that
      +  .  -:.       =       it will be useful,  but WITHOUT ANY WARRANTY;
     : ..    .:,     . . .    without even the implied warranty of
     =_        +     =;=|`    MERCHANTABILITY or FITNESS FOR A
   _.=:.       :    :=>`:     PARTICULAR PURPOSE. See the GNU
 ..}^=.=       =       ;      Library General Public License for more
 ++=   -.     .`     .:       details.
  :     =  ...= . :.=-
  -.   .:....=;==+<;          You should have received a copy of the GNU
   -_. . .   )=.  =           Library General Public License along with
     --        :-=`           this library; see the file COPYING.LIB.
                              If not, write to the Free Software Foundation,
                              Inc., 59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
 #ifndef OTASKBARAPPLET_H
 #define OTASKBARAPPLET_H
 
 #include <qpe/taskbarappletinterface.h>
 #include <qpe/qcom.h>
 
 #include <qwidget.h>
 
 class QMouseEvent;
 
 namespace Opie {
 namespace Ui   {
 namespace Internal {
 /*======================================================================================
  * OTaskbarAppletWrapper
  *======================================================================================*/
 
 class OTaskbarAppletWrapperPrivate;
 template<class T> class OTaskbarAppletWrapper : public TaskbarAppletInterface
 {
   public:
     OTaskbarAppletWrapper():_applet( 0 )
     {
     }
 
     virtual ~OTaskbarAppletWrapper()
     {
         delete _applet;
     }
 
     QRESULT queryInterface( const QUuid& uuid, QUnknownInterface** iface )
     {
         qDebug( "OTaskbarAppletWrapper::queryInterface()" );
         *iface = 0;
         if ( uuid == IID_QUnknown )
             *iface = this;
         else if ( uuid == IID_TaskbarApplet )
             *iface = this;
 	else
 	    return QS_FALSE;
 
         if ( *iface ) (*iface)->addRef();
         return QS_OK;
     }
 
     Q_REFCOUNT
 
     virtual T* applet( QWidget* parent )
     {
         if ( !_applet ) _applet = new T( parent );
         return _applet;
     }
 
     virtual int position() const
     {
         return T::position();
     }
 
   private:
     T* _applet;
     OTaskbarAppletWrapperPrivate *d;
 };
 
 }
 /*======================================================================================
  * OTaskbarApplet
  *======================================================================================*/
 
 // Must be inline until after we shipped Opie 1.0
 
 // Having OTaskBarApplet reside in libopieui2 is not possible
 // until we link the launcher binary against libopieui2 -
 // otherwise the necessary symbols are not present, when
 // the dynamic loader [dlopen] tries to resolve an applet which
 // inherits OTaskbarApplet
 
 class OTaskbarApplet : public QWidget
 {
   public:
     OTaskbarApplet( QWidget* parent, const char* name = 0 );
     virtual ~OTaskbarApplet();
 
+
   protected:
     virtual void popup( QWidget* widget );
 private:
     class Private;
     Private *d;
 };
 }
 }
 
 #define EXPORT_OPIE_APPLET_v1(  AppLet ) \
     Q_EXPORT_INTERFACE() { \
     Q_CREATE_INSTANCE(  Opie::Ui::Internal::OTaskbarAppletWrapper<AppLet> ) \
     }
 
 #endif