src/hbcore/gui/hbfadeitem.cpp
changeset 0 16d8024aca5e
child 5 627c4a0fd0e7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hbcore/gui/hbfadeitem.cpp	Mon Apr 19 14:02:13 2010 +0300
@@ -0,0 +1,126 @@
+/****************************************************************************
+**
+** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (developer.feedback@nokia.com)
+**
+** This file is part of the HbCore module of the UI Extensions for Mobile.
+**
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this file.
+** Please review the following information to ensure the GNU Lesser General
+** Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at developer.feedback@nokia.com.
+**
+****************************************************************************/
+
+#include "hbfadeitem_p.h"
+#include "hbwidget_p.h"
+#include "hbgraphicsscene.h"
+#include <QEvent>
+#include <QApplication>
+
+/*!
+  \class HbFadeItem
+
+  \brief Item that blocks all scene events.
+
+  \internal
+*/
+
+class HbFadeItemPrivate : public HbWidgetPrivate
+{
+    Q_DECLARE_PUBLIC(HbFadeItem)
+
+    public:
+    HbFadeItemPrivate( );
+    virtual ~HbFadeItemPrivate();
+    void init();
+
+    mutable QRectF mRect;
+
+private:
+    static HbFadeItemPrivate *d_ptr(HbFadeItem *fadeItem) {
+        Q_ASSERT(fadeItem);
+        return fadeItem->d_func();
+    }
+};
+
+HbFadeItemPrivate::HbFadeItemPrivate()
+{
+}
+
+HbFadeItemPrivate::~HbFadeItemPrivate()
+{
+}
+
+void HbFadeItemPrivate::init()
+{
+    Q_Q(HbFadeItem);
+
+    q->setBackgroundItem(HbStyle::P_Fade_background);
+
+    q->setAcceptHoverEvents(true);
+    // This is needed to be able to block moving the focus to items behind background item by
+    // clicking on them.
+    q->setFlag(QGraphicsItem::ItemIsFocusable);
+}
+
+HbFadeItem::HbFadeItem( QGraphicsItem *parent ) : HbWidget(*new HbFadeItemPrivate, parent)
+{
+    Q_D(HbFadeItem);
+    d->q_ptr = this;
+    d->init();
+}
+
+HbFadeItem::HbFadeItem(HbFadeItemPrivate &dd, QGraphicsItem *parent) : HbWidget(dd, parent)
+{
+    Q_D(HbFadeItem);
+    d->q_ptr = this;
+    d->init();
+}
+
+QRectF HbFadeItem::boundingRect() const
+{
+    Q_D(const HbFadeItem);
+    if(!d->mRect.isValid()){
+        // set size so that it is big enough
+        // to cover the screen both landscape and portrait mode
+        const QSizeF screenSize = HbDeviceProfile::profile(this).logicalSize();
+        qreal dim = qMax(screenSize.width(), screenSize.height());
+        d->mRect.adjust(0,0,dim,dim);
+    }
+    return d->mRect;
+}
+
+bool HbFadeItem::sceneEvent(QEvent *event)
+{
+    if (event->type() == QEvent::FocusIn) {
+        // Prevents last focus item losing its focus
+        // This event is received only when popup is modal
+        QFocusEvent restoreLastFocus(QEvent::FocusIn, Qt::OtherFocusReason);
+        QApplication::sendEvent(window()->scene(), &restoreLastFocus);
+    }
+    event->accept();
+    return true;
+}
+
+bool HbFadeItem::event(QEvent *event)
+{
+    if (event->type() == QEvent::Polish) {
+        // No need for any real polishing.
+        Q_D(HbFadeItem);
+        d->polished = true;
+        return true;
+    }
+    return HbWidget::event(event);
+}