--- a/qtmobility/examples/bearercloud/cloud.cpp Thu Aug 19 10:43:30 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,365 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the Qt Mobility Components.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-** the names of its contributors may be used to endorse or promote
-** products derived from this software without specific prior written
-** permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "cloud.h"
-#include "bearercloud.h"
-
-#include <qnetworksession.h>
-
-#include <QGraphicsTextItem>
-#include <QGraphicsSvgItem>
-#include <QGraphicsSceneMouseEvent>
-#include <QSvgRenderer>
-#include <QPainter>
-
-#include <QDebug>
-
-#include <math.h>
-
-static QMap<QString, QSvgRenderer *> svgCache;
-
-//! [0]
-Cloud::Cloud(const QNetworkConfiguration &config, QGraphicsItem *parent)
-: QGraphicsItem(parent), configuration(config), deleteAfterAnimation(false)
-{
- session = new QNetworkSession(configuration, this);
- connect(session, SIGNAL(newConfigurationActivated()),
- this, SLOT(newConfigurationActivated()));
- connect(session, SIGNAL(stateChanged(QNetworkSession::State)),
- this, SLOT(stateChanged(QNetworkSession::State)));
-
- setFlag(ItemIsMovable);
-#if (QT_VERSION >= QT_VERSION_CHECK(4, 6, 0))
- setFlag(ItemSendsGeometryChanges);
-#endif
- setZValue(1);
-
- icon = new QGraphicsSvgItem(this);
- text = new QGraphicsTextItem(this);
-
- currentScale = 0;
- finalScale = 1;
- setTransform(QTransform::fromScale(currentScale, currentScale), false);
- setOpacity(0);
-
- newConfigurationActivated();
-}
-//! [0]
-
-Cloud::~Cloud()
-{
-}
-
-void Cloud::setFinalScale(qreal factor)
-{
- finalScale = factor;
-}
-
-void Cloud::setDeleteAfterAnimation(bool deleteAfter)
-{
- deleteAfterAnimation = deleteAfter;
-}
-
-void Cloud::calculateForces()
-{
- if (!scene() || scene()->mouseGrabberItem() == this) {
- newPos = pos();
- return;
- }
-
- // sum up all the forces push this item away
- qreal xvel = 0;
- qreal yvel = 0;
- QLineF orbitForce;
- foreach (QGraphicsItem *item, scene()->items()) {
- // other clouds
- Cloud *cloud = qgraphicsitem_cast<Cloud *>(item);
- if (!cloud && item->data(0) != QLatin1String("This Device"))
- continue;
-
- qreal factor = 1.0;
-
- QLineF line(cloud ? item->mapToScene(0, 0) : QPointF(0, 0), mapToScene(0, 0));
- if (item->data(0) == QLatin1String("This Device"))
- orbitForce = line;
-
- if (cloud)
- factor = cloud->currentScale;
-
- qreal dx = line.dx();
- qreal dy = line.dy();
- double l = 2.0 * (dx * dx + dy * dy);
- if (l > 0) {
- xvel += factor * dx * 200.0 / l;
- yvel += factor * dy * 200.0 / l;
- }
- }
-
- // tendency to stay at a fixed orbit
- qreal orbit = getRadiusForState(configuration.state());
- qreal distance = orbitForce.length();
-
- QLineF unit = orbitForce.unitVector();
-
- orbitForce.setLength(xvel * unit.dx() + yvel * unit.dy());
-
- qreal w = 2 - exp(-pow(distance-orbit, 2)/(2 * 50));
-
- if (distance < orbit) {
- xvel += orbitForce.dx() * w;
- yvel += orbitForce.dy() * w;
- } else {
- xvel -= orbitForce.dx() * w;
- yvel -= orbitForce.dy() * w;
- }
-
- if (qAbs(xvel) < 0.1 && qAbs(yvel) < 0.1)
- xvel = yvel = 0;
-
- QRectF sceneRect = scene()->sceneRect();
- newPos = pos() + QPointF(xvel, yvel);
- newPos.setX(qMin(qMax(newPos.x(), sceneRect.left() + 10), sceneRect.right() - 10));
- newPos.setY(qMin(qMax(newPos.y(), sceneRect.top() + 10), sceneRect.bottom() - 10));
-}
-
-bool Cloud::advance()
-{
- static const qreal scaleDelta = 0.01;
-
- bool animated = false;
-
- if (currentScale < finalScale) {
- animated = true;
- currentScale = qMin<qreal>(currentScale + scaleDelta, finalScale);
- setTransform(QTransform::fromScale(currentScale, currentScale), false);
- } else if (currentScale > finalScale) {
- animated = true;
- currentScale = qMax<qreal>(currentScale - scaleDelta, finalScale);
- setTransform(QTransform::fromScale(currentScale, currentScale), false);
- }
-
- if (newPos != pos()) {
- setPos(newPos);
- animated = true;
- }
-
- if (opacity() != finalOpacity) {
- animated = true;
- if (qAbs(finalScale - currentScale) > 0.0) {
- // use scale as reference
- setOpacity(opacity() + scaleDelta * (finalOpacity - opacity()) /
- qAbs(finalScale - currentScale));
- } else {
- setOpacity(finalOpacity);
- }
- }
-
- if (!animated && deleteAfterAnimation)
- deleteLater();
-
- return animated;
-}
-
-QRectF Cloud::boundingRect() const
-{
- return childrenBoundingRect();
-}
-
-void Cloud::paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *)
-{
-}
-
-//! [4]
-QVariant Cloud::itemChange(GraphicsItemChange change, const QVariant &value)
-{
- switch (change) {
- case ItemPositionHasChanged:
- if (BearerCloud *bearercloud = qobject_cast<BearerCloud *>(scene()))
- bearercloud->cloudMoved();
- default:
- ;
- };
-
- return QGraphicsItem::itemChange(change, value);
-}
-//! [4]
-
-//! [3]
-void Cloud::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
-{
- if (event->button() == Qt::LeftButton) {
- if (session->isOpen())
- session->close();
- else
- session->open();
-
- event->accept();
- }
-}
-//! [3]
-
-//! [2]
-void Cloud::stateChanged(QNetworkSession::State state)
-{
- if (configuration.name().isEmpty())
- finalOpacity = qreal(0.1);
- else if (session->state() == QNetworkSession::NotAvailable)
- finalOpacity = 0.5;
- else
- finalOpacity = 1.0;
-
-#if !defined(Q_WS_MAEMO_5) && !defined(Q_WS_MAEMO_6) && \
- !defined(Q_OS_SYMBIAN) && !defined(Q_OS_WINCE)
- QString tooltip;
-
- if (configuration.name().isEmpty())
- tooltip += tr("<b>HIDDEN NETWORK</b><br>");
- else
- tooltip += tr("<b>%1</b><br>").arg(configuration.name());
-
- const QNetworkInterface interface = session->interface();
- if (interface.isValid())
- tooltip += tr("<br>Interface: %1").arg(interface.humanReadableName());
- tooltip += tr("<br>Id: %1").arg(configuration.identifier());
-
- const QString bearerName = configuration.bearerName();
- if (!bearerName.isEmpty())
- tooltip += tr("<br>Bearer: %1").arg(bearerName);
-
- QString s = tr("<br>State: %1 (%2)");
- switch (state) {
- case QNetworkSession::Invalid:
- s = s.arg(tr("Invalid"));
- break;
- case QNetworkSession::NotAvailable:
- s = s.arg(tr("Not Available"));
- break;
- case QNetworkSession::Connecting:
- s = s.arg(tr("Connecting"));
- break;
- case QNetworkSession::Connected:
- s = s.arg(tr("Connected"));
- break;
- case QNetworkSession::Closing:
- s = s.arg(tr("Closing"));
- break;
- case QNetworkSession::Disconnected:
- s = s.arg(tr("Disconnected"));
- break;
- case QNetworkSession::Roaming:
- s = s.arg(tr("Roaming"));
- break;
- default:
- s = s.arg(tr("Unknown"));
- }
-
- if (session->isOpen())
- s = s.arg(tr("Open"));
- else
- s = s.arg(tr("Closed"));
-
- tooltip += s;
-
- tooltip += tr("<br><br>Active time: %1 seconds").arg(session->activeTime());
- tooltip += tr("<br>Received data: %1 bytes").arg(session->bytesReceived());
- tooltip += tr("<br>Sent data: %1 bytes").arg(session->bytesWritten());
-
- setToolTip(tooltip);
-#else
- Q_UNUSED(state);
-#endif
-}
-//! [2]
-
-//! [1]
-void Cloud::newConfigurationActivated()
-{
- const QString bearerName = configuration.bearerName();
- if (!svgCache.contains(bearerName)) {
- if (bearerName == QLatin1String("WLAN"))
- svgCache.insert(bearerName, new QSvgRenderer(QLatin1String(":wlan.svg")));
- else if (bearerName == QLatin1String("Ethernet"))
- svgCache.insert(bearerName, new QSvgRenderer(QLatin1String(":lan.svg")));
- else
- svgCache.insert(bearerName, new QSvgRenderer(QLatin1String(":unknown.svg")));
- }
-
- icon->setSharedRenderer(svgCache[bearerName]);
-
- if (configuration.name().isEmpty()) {
- text->setPlainText(tr("HIDDEN NETWORK"));
- } else {
- if (configuration.type() == QNetworkConfiguration::ServiceNetwork)
- text->setHtml("<b>" + configuration.name() + "</b>");
- else
- text->setPlainText(configuration.name());
- }
-
- const qreal height = icon->boundingRect().height() + text->boundingRect().height();
-
- icon->setPos(icon->boundingRect().width() / -2, height / -2);
-
- text->setPos(text->boundingRect().width() / -2,
- height / 2 - text->boundingRect().height());
-
- stateChanged(session->state());
-}
-//! [1]
-
-qreal Cloud::getRadiusForState(QNetworkConfiguration::StateFlags state)
-{
- switch (state) {
- case QNetworkConfiguration::Active:
- return 100;
- break;
- case QNetworkConfiguration::Discovered:
- return 150;
- break;
- case QNetworkConfiguration::Defined:
- return 200;
- break;
- case QNetworkConfiguration::Undefined:
- return 250;
- break;
- default:
- return 300;
- }
-}
-