diff -r a1f515018ac1 -r b39122337a00 ginebra2/Charms/ExternalEventCharm.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ginebra2/Charms/ExternalEventCharm.cpp	Fri Aug 06 17:23:08 2010 -0400
@@ -0,0 +1,119 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU Lesser General Public License as published by
+* the Free Software Foundation, version 2.1 of the License.
+*
+* 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 Lesser General Public License for more details.
+*
+* You should have received a copy of the GNU Lesser General Public License
+* along with this program.  If not,
+* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".
+*
+* Description:
+*/
+
+#include "ExternalEventCharm.h"
+
+namespace GVA {
+
+const QString ExternalEventCharm::s_mouseClick = "MouseClick";
+static const int KLongPressThreshold = 30;
+
+inline QGraphicsScene *ExternalEventCharm::scene() {
+    QGraphicsObject *item = static_cast<QGraphicsObject*>(m_object);
+    return item->scene();
+}
+
+ExternalEventCharm::ExternalEventCharm(QGraphicsObject *object)
+  : ObjectCharm(object),
+    m_pressed(false)
+{
+}
+
+bool ExternalEventCharm::eventFilter(QObject *object, QEvent *event) {
+    checkForExternalEvent(this, event);
+
+    switch (event->type()) {
+      case QEvent::Show:
+      {
+          scene()->installEventFilter(this);
+          break;
+      }
+      case QEvent::Hide:
+      {
+          scene()->removeEventFilter(this);
+          break;
+      }
+      default: break;
+    }
+
+    // standard event processing
+    return object->eventFilter(object, event);
+}
+
+void ExternalEventCharm::checkForExternalEvent(QObject * o, QEvent * e)
+{
+    Q_UNUSED(o);
+    bool emitClick = false;
+
+    switch (e->type()) {
+        case QEvent::GraphicsSceneMousePress: {
+            QGraphicsSceneMouseEvent * me = static_cast<QGraphicsSceneMouseEvent*>(e);
+            m_pressPos = me->scenePos();
+            m_pressed = true;
+            break;
+        }
+        case QEvent::GraphicsSceneMouseRelease: {
+            // See if we need to send a mouse-click signal.
+            // TODO: When gesture handling is implemented this should be replaced.
+            if(m_pressed) {
+                QGraphicsSceneMouseEvent * me = static_cast<QGraphicsSceneMouseEvent*>(e);
+                QPointF diff = m_pressPos - me->scenePos();
+                if(diff.manhattanLength() < KLongPressThreshold) {
+                    emitClick = true;
+                }
+                m_pressed = false;
+            }
+            break;
+        }
+        case QEvent::GraphicsSceneMouseDoubleClick:
+            m_pressed = false;
+            break;
+        default:
+            // Ignore other events.
+            return;
+    }
+
+    QGraphicsSceneMouseEvent * me = static_cast<QGraphicsSceneMouseEvent*>(e);
+    QGraphicsObject *item = static_cast<QGraphicsObject*>(m_object);
+    QRectF itemGeometry = item->sceneBoundingRect();
+
+    if (!itemGeometry.contains(me->scenePos())) {
+        if(emitClick)
+            emit externalMouseEvent(me, s_mouseClick, "");
+        else
+            emitExternalEvent(e);
+    }
+}
+
+void ExternalEventCharm::emitExternalEvent(QEvent * e)
+{
+    QString description;
+
+    QDebug stream(&description);
+    stream << e;
+
+    QString name = description;
+    name.truncate(name.indexOf('('));
+
+    emit externalMouseEvent(e, name, description.trimmed());
+}
+
+
+}   // end GVA namepace