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diff --git a/kparts/event.h b/kparts/event.h
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+/* This file is part of the KDE project
+   Copyright (C) 1999 Simon Hausmann <hausmann@kde.org>
+             (C) 1999 David Faure <faure@kde.org>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library 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., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+#ifndef __kparts_event_h__
+#define __kparts_event_h__
+
+#include <qevent.h>
+
+#include <kdelibs_export.h>
+
+class QWidget;
+
+namespace KParts
+{
+class Part;
+
+/**
+ * Base class for all KParts events.
+ */
+class KPARTS_EXPORT Event : public QCustomEvent
+{
+public:
+  Event( const char *eventName );
+
+  virtual const char *eventName() const;
+
+  static bool test( const QEvent *event );
+  static bool test( const QEvent *event, const char *name );
+};
+
+/**
+ * This event is sent to a Part when its GUI has been activated or deactivated.
+ * This is related to PartActivateEvent, but the difference is that
+ * GUIActivateEvent happens later (when the GUI is actually built),
+ * only for parts that have GUI elements, and only if using KParts::MainWindow.
+ * @see KParts::Part::guiActivateEvent()
+ */
+class KPARTS_EXPORT GUIActivateEvent : public Event
+{
+public:
+  GUIActivateEvent( bool activated ) : Event( s_strGUIActivateEvent ), m_bActivated( activated ) {}
+
+  bool activated() const { return m_bActivated; }
+
+  static bool test( const QEvent *event ) { return Event::test( event, s_strGUIActivateEvent ); }
+
+private:
+  static const char *s_strGUIActivateEvent;
+  bool m_bActivated;
+};
+
+/**
+ * This event is sent by the part manager when the active part changes.
+ * Each time the active part changes, it will send first a PartActivateEvent
+ * with activated=false, part=oldActivePart, widget=oldActiveWidget
+ * and then another PartActivateEvent
+ * with activated=true, part=newPart, widget=newWidget.
+ * @see KParts::Part::partActivateEvent
+ */
+class KPARTS_EXPORT PartActivateEvent : public Event
+{
+public:
+  PartActivateEvent( bool activated, Part *part, QWidget *widget ) : Event( s_strPartActivateEvent ), m_bActivated( activated ), m_part( part ), m_widget( widget ) {}
+
+  bool activated() const { return m_bActivated; }
+
+  Part *part() const { return m_part; }
+  QWidget *widget() const { return m_widget; }
+
+  static bool test( const QEvent *event ) { return Event::test( event, s_strPartActivateEvent ); }
+
+private:
+  static const char *s_strPartActivateEvent;
+  bool m_bActivated;
+  Part *m_part;
+  QWidget *m_widget;
+};
+
+/**
+ * This event is sent when a part is selected or deselected.
+ * @see KParts::PartManager::setSelectionPolicy
+ */
+class KPARTS_EXPORT PartSelectEvent : public Event
+{
+public:
+  PartSelectEvent( bool selected, Part *part, QWidget *widget ) : Event( s_strPartSelectEvent ), m_bSelected( selected ), m_part( part ), m_widget( widget ) {}
+
+  bool selected() const { return m_bSelected; }
+
+  Part *part() const { return m_part; }
+  QWidget *widget() const { return m_widget; }
+
+  static bool test( const QEvent *event ) { return Event::test( event, s_strPartSelectEvent ); }
+
+private:
+  static const char *s_strPartSelectEvent;
+  bool m_bSelected;
+  Part *m_part;
+  QWidget *m_widget;
+};
+
+} // namespace
+
+#endif