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382 lines
12 KiB
C++
382 lines
12 KiB
C++
/**
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******************************************************************************
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*
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* @file connectionmanager.cpp
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
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* Parts by Nokia Corporation (qt-info@nokia.com) Copyright (C) 2009.
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* @addtogroup GCSPlugins GCS Plugins
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* @{
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* @addtogroup CorePlugin Core Plugin
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* @{
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* @brief The Core GCS plugin
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "connectionmanager.h"
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#include <aggregation/aggregate.h>
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#include <coreplugin/iconnection.h>
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#include <extensionsystem/pluginmanager.h>
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#include "qextserialport/src/qextserialenumerator.h"
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#include "qextserialport/src/qextserialport.h"
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#include <QDebug>
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#include <QLabel>
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#include <QHBoxLayout>
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#include <QComboBox>
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namespace Core {
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ConnectionManager::ConnectionManager(Internal::MainWindow *mainWindow, QTabWidget *modeStack) :
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QWidget(mainWindow), // Pip
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m_availableDevList(0),
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m_connectBtn(0),
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m_ioDev(NULL),
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m_mainWindow(mainWindow)
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{
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// Q_UNUSED(mainWindow);
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/* QVBoxLayout *top = new QVBoxLayout;
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top->setSpacing(0);
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top->setMargin(0);*/
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QHBoxLayout *layout = new QHBoxLayout;
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layout->setSpacing(5);
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layout->setContentsMargins(5,5,5,5);
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layout->addWidget(new QLabel(tr("Connections:")));
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m_availableDevList = new QComboBox;
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//m_availableDevList->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
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m_availableDevList->setMinimumWidth(100);
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m_availableDevList->setMaximumWidth(150);
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m_availableDevList->setContextMenuPolicy(Qt::CustomContextMenu);
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layout->addWidget(m_availableDevList);
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m_connectBtn = new QPushButton(tr("Connect"));
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m_connectBtn->setEnabled(false);
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layout->addWidget(m_connectBtn);
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/* Utils::StyledBar *bar = new Utils::StyledBar;
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bar->setLayout(layout);
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top->addWidget(bar);*/
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setLayout(layout);
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// modeStack->insertCornerWidget(modeStack->cornerWidgetCount()-1, this);
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modeStack->setCornerWidget(this, Qt::TopRightCorner);
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QObject::connect(m_connectBtn, SIGNAL(pressed()), this, SLOT(onConnectPressed()));
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}
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ConnectionManager::~ConnectionManager()
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{
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disconnectDevice(); // Pip
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suspendPolling(); // Pip
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}
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void ConnectionManager::init()
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{
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//register to the plugin manager so we can receive
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//new connection object from plugins
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QObject::connect(ExtensionSystem::PluginManager::instance(), SIGNAL(objectAdded(QObject*)), this, SLOT(objectAdded(QObject*)));
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QObject::connect(ExtensionSystem::PluginManager::instance(), SIGNAL(aboutToRemoveObject(QObject*)), this, SLOT(aboutToRemoveObject(QObject*)));
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}
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/**
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* Method called when the user clicks the "Connect" button
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*/
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bool ConnectionManager::connectDevice()
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{
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devListItem connection_device = findDevice(m_availableDevList->itemData(m_availableDevList->currentIndex(),Qt::ToolTipRole).toString());
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if (!connection_device.connection)
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return false;
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QIODevice *io_dev = connection_device.connection->openDevice(connection_device.Name);
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if (!io_dev)
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return false;
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io_dev->open(QIODevice::ReadWrite);
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// check if opening the device worked
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if (!io_dev->isOpen()) {
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qDebug() << "Error: io_dev->isOpen() returned FALSE .. could not open connection to " << connection_device.devName
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<< ": " << io_dev->errorString();
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// close the device
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// EDOUARD: why do we close if we could not open ???
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try {
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connection_device.connection->closeDevice(connection_device.devName);
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}
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catch (...) { // handle exception
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qDebug() << "Exception: connection_device.connection->closeDevice(" << connection_device.devName << ")";
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}
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return false;
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}
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// we appear to have connected to the device OK
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// remember the connection/device details
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m_connectionDevice = connection_device;
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m_ioDev = io_dev;
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connect(m_connectionDevice.connection, SIGNAL(destroyed(QObject *)), this, SLOT(onConnectionDestroyed(QObject *)), Qt::QueuedConnection);
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// signal interested plugins that we connected to the device
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emit deviceConnected(m_ioDev);
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m_connectBtn->setText("Disconnect");
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m_availableDevList->setEnabled(false);
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return true;
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}
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/**
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* Method called by plugins who want to force a disconnection.
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* Used by Uploader gadget for instance.
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*/
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bool ConnectionManager::disconnectDevice()
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{
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if (!m_ioDev) {
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// apparently we are already disconnected: this can
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// happen if a plugin tries to force a disconnect whereas
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// we are not connected. Just return.
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return false;
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}
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// We are connected - disconnect from the device
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// signal interested plugins that user is disconnecting his device
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emit deviceAboutToDisconnect();
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try {
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if (m_connectionDevice.connection)
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m_connectionDevice.connection->closeDevice(m_connectionDevice.devName);
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} catch (...) { // handle exception
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qDebug() << "Exception: m_connectionDevice.connection->closeDevice(" << m_connectionDevice.devName << ")";
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}
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m_connectionDevice.connection = NULL;
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m_ioDev = NULL;
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m_connectBtn->setText("Connect");
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m_availableDevList->setEnabled(true);
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return true;
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}
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/**
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* Slot called when a plugin added an object to the core pool
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*/
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void ConnectionManager::objectAdded(QObject *obj)
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{
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//Check if a plugin added a connection object to the pool
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IConnection *connection = Aggregation::query<IConnection>(obj);
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if (!connection) return;
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//qDebug() << "Connection object registered:" << connection->connectionName();
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//qDebug() << connection->availableDevices();
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//register devices and populate CB
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devChanged(connection);
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// Keep track of the registration to be able to tell plugins
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// to do things
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m_connectionsList.append(connection);
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QObject::connect(connection, SIGNAL(availableDevChanged(IConnection *)), this, SLOT(devChanged(IConnection *)));
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}
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void ConnectionManager::aboutToRemoveObject(QObject *obj)
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{
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//Check if a plugin added a connection object to the pool
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IConnection *connection = Aggregation::query<IConnection>(obj);
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if (!connection) return;
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if (m_connectionDevice.connection && m_connectionDevice.connection == connection) // Pip
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{ // we are currently using the one that is about to be removed
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m_connectionDevice.connection = NULL;
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m_ioDev = NULL;
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}
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if (m_connectionsList.contains(connection))
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m_connectionsList.removeAt(m_connectionsList.indexOf(connection));
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}
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void ConnectionManager::onConnectionDestroyed(QObject *obj) // Pip
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{
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Q_UNUSED(obj)
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//onConnectionClosed(obj);
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disconnectDevice();
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}
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/**
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* Slot called when the user pressed the connect/disconnect button
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*/
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void ConnectionManager::onConnectPressed()
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{
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// Check if we have a ioDev already created:
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if (!m_ioDev)
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{ // connecting
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connectDevice();
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}
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else
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{ // disconnecting
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disconnectDevice();
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}
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}
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/**
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* Find a device by its displayed (visible on screen) name
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*/
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devListItem ConnectionManager::findDevice(const QString &devName)
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{
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foreach (devListItem d, m_devList)
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{
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if (d.devName == devName)
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return d;
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}
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qDebug() << "findDevice: cannot find " << devName << " in device list";
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devListItem d;
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d.connection = NULL;
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return d;
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}
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/**
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* Tells every connection plugin to stop polling for devices if they
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* are doing that.
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*
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*/
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void ConnectionManager::suspendPolling()
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{
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foreach (IConnection *cnx, m_connectionsList)
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{
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cnx->suspendPolling();
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}
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m_connectBtn->setEnabled(false);
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m_availableDevList->setEnabled(false);
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}
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/**
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* Tells every connection plugin to resume polling for devices if they
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* are doing that.
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*/
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void ConnectionManager::resumePolling()
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{
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foreach (IConnection *cnx, m_connectionsList)
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{
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cnx->resumePolling();
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}
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m_connectBtn->setEnabled(true);
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m_availableDevList->setEnabled(true);
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}
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/**
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* Unregister all devices from one connection plugin
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* \param[in] connection Connection type that you want to forget about :)
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*/
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void ConnectionManager::unregisterAll(IConnection *connection)
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{
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for (QLinkedList<devListItem>::iterator iter = m_devList.begin(); iter != m_devList.end(); )
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{
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if (iter->connection == connection)
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{
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if (m_connectionDevice.connection && m_connectionDevice.connection == connection)
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{ // we are currently using the one we are about to erase
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//onConnectionClosed(m_connectionDevice.connection);
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disconnectDevice();
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}
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iter = m_devList.erase(iter);
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}
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else
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++iter;
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}
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}
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/**
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* Register a device from a specific connection plugin
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* @param devN contains the connection shortname + device name which is diplayed in the tooltip
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* @param disp is the name that is displayed in the dropdown menu
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* @param name is the actual device name
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*/
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void ConnectionManager::registerDevice(IConnection *conn, const QString &devN, const QString &name, const QString &disp)
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{
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devListItem d;
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d.connection = conn;
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d.devName = devN;
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d.Name = name;
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d.displayName=disp;
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m_devList.append(d);
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}
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/**
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* A device plugin notified us that its device list has changed
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* (eg: user plug/unplug a usb device)
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* \param[in] connection Connection type which signaled the update
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*/
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void ConnectionManager::devChanged(IConnection *connection)
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{
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//clear device list combobox
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m_availableDevList->clear();
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//remove registered devices of this IConnection from the list
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unregisterAll(connection);
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//and add them back in the list
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QList <IConnection::device> availableDev = connection->availableDevices();
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foreach (IConnection::device dev, availableDev)
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{
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QString cbName = connection->shortName() + ": " + dev.name;
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QString disp = connection->shortName() + " : " + dev.displayName;
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registerDevice(connection,cbName,dev.name,disp);
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}
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//add all the list again to the combobox
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foreach (devListItem d, m_devList)
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{
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m_availableDevList->addItem(d.displayName);
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m_availableDevList->setItemData(m_availableDevList->count()-1,(const QString)d.devName,Qt::ToolTipRole);
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if(!m_ioDev && d.displayName.startsWith("USB"))
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{
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if(m_mainWindow->generalSettings()->autoConnect() || m_mainWindow->generalSettings()->autoSelect())
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m_availableDevList->setCurrentIndex(m_availableDevList->count()-1);
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if(m_mainWindow->generalSettings()->autoConnect())
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connectDevice();
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}
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}
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if(m_ioDev)//if a device is connected make it the one selected on the dropbox
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{
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for(int x=0;x<m_availableDevList->count();++x)
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{
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if(m_connectionDevice.devName==m_availableDevList->itemData(x,Qt::ToolTipRole).toString())
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m_availableDevList->setCurrentIndex(x);
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}
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}
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//disable connection button if the liNameif (m_availableDevList->count() > 0)
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if (m_availableDevList->count() > 0)
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m_connectBtn->setEnabled(true);
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else
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m_connectBtn->setEnabled(false);
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}
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} //namespace Core
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