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Diffstat (limited to 'examples/svg/network/bearercloud/cloud.cpp')
| -rw-r--r-- | examples/svg/network/bearercloud/cloud.cpp | 390 |
1 files changed, 0 insertions, 390 deletions
diff --git a/examples/svg/network/bearercloud/cloud.cpp b/examples/svg/network/bearercloud/cloud.cpp deleted file mode 100644 index 1117c94..0000000 --- a/examples/svg/network/bearercloud/cloud.cpp +++ /dev/null @@ -1,390 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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<QNetworkConfiguration::BearerType, 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); - setFlag(ItemSendsGeometryChanges); - 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; - const auto graphicsItems = scene()->items(); - for (QGraphicsItem *item : graphicsItems) { - // 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::advanceAnimation() -{ - 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; - - QString tooltip; - - if (configuration.name().isEmpty()) - tooltip += tr("<b>HIDDEN NETWORK</b><br>"); - else - tooltip += tr("<b>%1</b><br>").arg(configuration.name()); - -#ifndef QT_NO_NETWORKINTERFACE - const QNetworkInterface interface = session->interface(); - if (interface.isValid()) - tooltip += tr("<br>Interface: %1").arg(interface.humanReadableName()); - tooltip += tr("<br>Id: %1").arg(configuration.identifier()); -#endif - - const QString bearerTypeName = configuration.bearerTypeName(); - if (!bearerTypeName.isEmpty()) - tooltip += tr("<br>Bearer: %1").arg(bearerTypeName); - - 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); -} -//! [2] - -//! [1] -void Cloud::newConfigurationActivated() -{ - QNetworkConfiguration::BearerType bearerType = configuration.bearerType(); - if (!svgCache.contains(bearerType)) { - QSvgRenderer *renderer = 0; - switch (bearerType) { - case QNetworkConfiguration::BearerWLAN: - renderer = new QSvgRenderer(QLatin1String(":wlan.svg")); - break; - case QNetworkConfiguration::BearerEthernet: - renderer = new QSvgRenderer(QLatin1String(":lan.svg")); - break; - case QNetworkConfiguration::Bearer2G: - renderer = new QSvgRenderer(QLatin1String(":cell.svg")); - break; - case QNetworkConfiguration::BearerBluetooth: - renderer = new QSvgRenderer(QLatin1String(":bluetooth.svg")); - break; - case QNetworkConfiguration::BearerCDMA2000: - case QNetworkConfiguration::BearerWCDMA: - case QNetworkConfiguration::BearerHSPA: - renderer = new QSvgRenderer(QLatin1String(":umts.svg")); - break; - default: - renderer = new QSvgRenderer(QLatin1String(":unknown.svg")); - } - - if (renderer) - svgCache.insert(bearerType, renderer); - } - - icon->setSharedRenderer(svgCache[bearerType]); - - 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; - } -} - |