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/***************************************************************************** |
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* |
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* Copyright (C) 2009 - 2022 Florian Pose <fp@igh.de> |
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* |
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* This file is part of the QtPdCom library. |
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* |
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* The QtPdCom library is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or (at your |
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* option) any later version. |
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* |
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* The QtPdCom library 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 Lesser General Public |
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* License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with the QtPdCom Library. If not, see <http://www.gnu.org/licenses/>. |
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* |
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****************************************************************************/ |
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#include "MessageModel.h" |
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using QtPdCom::MessageModel; |
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#include "MessageImpl.h" |
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#include "MessageItem.h" |
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#include "MessageManager.h" |
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#include "MessageModelImpl.h" |
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#include "Process.h" |
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#include <QEvent> |
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#include <QFile> |
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#include <QDomDocument> |
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#include <QMetaEnum> |
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#include <QtGlobal> |
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/****************************************************************************/ |
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/** Constructor. |
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*/ |
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MessageModel::MessageModel(QObject *parent): |
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QAbstractTableModel(parent), |
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impl(std::unique_ptr<Impl>(new MessageModel::Impl(this))) |
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{} |
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/****************************************************************************/ |
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/** Destructor. |
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*/ |
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MessageModel::~MessageModel() |
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{ |
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clear(); |
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} |
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/****************************************************************************/ |
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/** Loads messages from an Xml file. |
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*/ |
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void MessageModel::load( |
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const QString &path, /**< Path to Xml file. */ |
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const QString &lang, /**< Language identifier. */ |
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const QString &pathPrefix /**< Prefix to path (with leading /). */ |
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) |
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{ |
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QFile file(path); |
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QDomDocument doc; |
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QDomElement docElem; |
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if (!file.open(QIODevice::ReadOnly)) { |
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throw Exception(QtPdCom::MessageModel::tr("Failed to open %1.") |
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.arg(file.fileName())); |
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} |
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#if QT_VERSION < 0x060500 |
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{ |
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QString errorMessage; |
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int errorRow, errorColumn; |
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if (!doc.setContent(&file, &errorMessage, &errorRow, &errorColumn)) { |
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throw Exception( |
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QtPdCom::MessageModel::tr("Failed to parse %1, line %2," |
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" column %3: %4") |
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.arg(file.fileName()) |
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.arg(errorRow) |
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.arg(errorColumn) |
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.arg(errorMessage)); |
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} |
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} |
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#else |
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{ |
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QDomDocument::ParseResult res = doc.setContent(&file); |
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if (not res) { |
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throw Exception( |
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QtPdCom::MessageModel::tr("Failed to parse %1, line %2," |
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" column %3: %4") |
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.arg(file.fileName()) |
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.arg(res.errorLine) |
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.arg(res.errorColumn) |
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.arg(res.errorMessage)); |
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} |
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} |
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#endif |
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file.close(); |
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docElem = doc.documentElement(); |
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if (docElem.tagName() != "EtherLabPlainMessages") { |
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throw Exception( |
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QtPdCom::MessageModel::tr("Failed to process %1:" |
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" No plain message file (%2)!")); |
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} |
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QDomNodeList children = docElem.childNodes(); |
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QDomNode node; |
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QDomElement child; |
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for (int i = 0; i < children.size(); i++) { |
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node = children.item(i); |
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if (node.isElement()) { |
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child = node.toElement(); |
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if (child.tagName() == "Message") { |
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try { |
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QString path = Message::Impl::pathFromPlainXmlElement( |
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child, |
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pathPrefix); |
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int index = |
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Message::Impl::indexFromPlainXmlElement(child); |
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Message *&msg = impl->messageMap[path][index]; |
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if (!msg) { |
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msg = new Message(); |
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} |
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msg->impl->fromPlainXmlElement(child, pathPrefix); |
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QObject::connect( |
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msg, |
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SIGNAL(stateChanged()), |
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impl.get(), |
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SLOT(stateChanged())); |
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} |
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catch (Message::Exception &e) { |
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qWarning() << e.msg; |
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} |
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} |
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} |
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} |
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impl->lang = lang; |
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} |
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/****************************************************************************/ |
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/** Clears the messages. |
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*/ |
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void MessageModel::clear() |
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{ |
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if (impl->announcedMessageItem) { |
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impl->announcedMessageItem = nullptr; |
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#if PD_DEBUG_MESSAGE_MODEL |
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qDebug() << __func__ << "currentMessage null"; |
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#endif |
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emit currentMessage(nullptr); |
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} |
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if (impl->messageItemList.count()) { |
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beginRemoveRows(QModelIndex(), 0, impl->messageItemList.count() - 1); |
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qDeleteAll(impl->messageItemList); |
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impl->messageItemList.clear(); |
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endRemoveRows(); |
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} |
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for (auto &h : impl->messageMap) { |
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qDeleteAll(h); |
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} |
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impl->messageMap.clear(); |
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} |
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/****************************************************************************/ |
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/** Sets the maximum number of rows to fetch. |
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*/ |
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void MessageModel::setRowLimit(int limit /**< Maximum number of rows. */) |
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{ |
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impl->rowLimit = limit; |
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} |
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/****************************************************************************/ |
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/** Gets the maxium number of rows to fetch. |
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*/ |
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int MessageModel::getRowLimit() const |
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{ |
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return impl->rowLimit; |
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} |
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/****************************************************************************/ |
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/** Connects messages to the given process. |
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*/ |
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void MessageModel::connect(QtPdCom::Process *process /**< PdCom process. */ |
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) |
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{ |
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impl->processReset(); |
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impl->messageManager = nullptr; |
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impl->process = process; |
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if (!process) { |
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return; |
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} |
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impl->messageManager = |
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dynamic_cast<MessageManager *>(process->getMessageManager()); |
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if (impl->messageManager) { |
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QObject::connect( |
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impl->messageManager, |
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&MessageManager::processMessageSignal, |
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impl.get(), |
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&Impl::processMessage); |
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QObject::connect( |
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process, |
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&Process::processConnected, |
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impl.get(), |
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&Impl::reloadActiveMessages); |
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QObject::connect( |
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impl->messageManager, |
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&MessageManager::processResetSignal, |
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impl.get(), |
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&Impl::processReset); |
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if (process->isConnected()) { |
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impl->reloadActiveMessages(); |
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} |
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} |
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else { |
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qWarning() << QtPdCom::MessageModel::tr( |
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"Failed to connect to message manager."); |
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} |
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for (auto h : impl->messageMap) { |
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Impl::MessageHash::iterator i; |
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for (i = h.begin(); i != h.end(); ++i) { |
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if (i.key() != -1) { /* FIXME vector messages */ |
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continue; |
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} |
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Message *msg = i.value(); |
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PdCom::Selector selector; |
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if (msg->getIndex() > -1) { |
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selector = PdCom::ScalarSelector({msg->getIndex()}); |
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} |
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#if PD_DEBUG_MESSAGE_MODEL |
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qDebug() << "Subscribing to" << msg->getPath() << msg->getIndex(); |
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#endif |
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try { |
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msg->impl->variable.setVariable( |
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process, |
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msg->getPath(), |
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selector); |
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} |
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catch (AbstractScalarVariable::Exception &e) { |
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qWarning() << QtPdCom::MessageModel::tr( |
| 260 |
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"Failed to subscribe to %1: %2") |
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.arg(msg->getPath()) |
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.arg(e.msg); |
| 263 |
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} |
| 264 |
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} |
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} |
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} |
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/****************************************************************************/ |
| 269 |
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✗ |
QtPdCom::Process *MessageModel::getProcess() const |
| 271 |
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{ |
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return impl->process; |
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} |
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/****************************************************************************/ |
| 276 |
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/** Sets a new language and notifies views. |
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*/ |
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✗ |
void MessageModel::translate(const QString &lang) |
| 280 |
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{ |
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✗ |
impl->lang = lang; |
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for (int i = 0; i < impl->messageItemList.count(); i++) { |
| 284 |
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QModelIndex idx = index(i, 0); // only text column |
| 285 |
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emit dataChanged(idx, idx); |
| 286 |
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} |
| 287 |
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✗ |
if (impl->announcedMessageItem) { |
| 289 |
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#if PD_DEBUG_MESSAGE_MODEL |
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qDebug() << __func__ << "currentMessage" << impl->announcedMessageItem |
| 291 |
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<< impl->announcedMessageItem->message; |
| 292 |
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#endif |
| 293 |
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✗ |
emit currentMessage(impl->announcedMessageItem->message); |
| 294 |
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} |
| 295 |
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} |
| 296 |
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/****************************************************************************/ |
| 298 |
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/** Sets an icon for a specific message type. |
| 300 |
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*/ |
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✗ |
void MessageModel::setIcon(Message::Type type, const QIcon &icon) |
| 302 |
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{ |
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✗ |
impl->iconHash[type] = icon; |
| 304 |
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✗ |
if (rowCount({}) > 0) { |
| 305 |
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✗ |
emit dataChanged( |
| 306 |
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✗ |
index(0, TextColumn), |
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✗ |
index(rowCount({}) - 1, TextColumn), |
| 308 |
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{Qt::DecorationRole}); |
| 309 |
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} |
| 310 |
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} |
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/****************************************************************************/ |
| 313 |
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/** \return Icon for given message type. |
| 315 |
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*/ |
| 316 |
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✗ |
const QIcon &MessageModel::getIcon(Message::Type type) const |
| 317 |
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{ |
| 318 |
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✗ |
return impl->iconHash[type]; |
| 319 |
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} |
| 320 |
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/****************************************************************************/ |
| 322 |
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| 323 |
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/** Sets the path (url) to an icon for a specific message type. |
| 324 |
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If the model is used with QML views this is the only way |
| 325 |
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to store the icon information. |
| 326 |
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*/ |
| 327 |
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✗ |
void MessageModel::setIconPath(Message::Type type, const QString &iconPath) |
| 328 |
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{ |
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✗ |
impl->iconPathHash[type] = iconPath; |
| 330 |
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// and also add it to the iconHash |
| 331 |
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✗ |
setIcon(type, QIcon(iconPath)); |
| 332 |
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/* vice versa would be nice, but does not work because |
| 333 |
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to a QIcon the Path is not known */ |
| 334 |
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} |
| 335 |
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| 336 |
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/****************************************************************************/ |
| 337 |
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|
| 338 |
|
✗ |
QVariantMap QtPdCom::MessageModel::getIconPathMap() const |
| 339 |
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{ |
| 340 |
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✗ |
const auto metaEnum = QMetaEnum::fromType<Message::Type>(); |
| 341 |
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✗ |
QVariantMap ans; |
| 342 |
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✗ |
for (auto it = impl->iconPathHash.keyBegin(); |
| 343 |
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✗ |
it != impl->iconPathHash.keyEnd(); |
| 344 |
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++it) { |
| 345 |
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✗ |
ans[QString(metaEnum.valueToKey(*it))] = impl->iconPathHash[*it]; |
| 346 |
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} |
| 347 |
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✗ |
return ans; |
| 348 |
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} |
| 349 |
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| 350 |
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/****************************************************************************/ |
| 351 |
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|
| 352 |
|
✗ |
void QtPdCom::MessageModel::setIconPathMap(QVariantMap const map) |
| 353 |
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{ |
| 354 |
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✗ |
const auto metaEnum = QMetaEnum::fromType<Message::Type>(); |
| 355 |
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✗ |
bool ok = false; |
| 356 |
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✗ |
for (auto it = map.keyBegin(); it != map.keyEnd(); ++it) { |
| 357 |
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const auto key_enum = |
| 358 |
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✗ |
metaEnum.keyToValue(it->toStdString().c_str(), &ok); |
| 359 |
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✗ |
if (ok) { |
| 360 |
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✗ |
setIconPath( |
| 361 |
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static_cast<QtPdCom::Message::Type>(key_enum), |
| 362 |
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✗ |
map[*it].toString()); |
| 363 |
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} |
| 364 |
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} |
| 365 |
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} |
| 366 |
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|
| 367 |
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/****************************************************************************/ |
| 368 |
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|
| 369 |
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/** Implements the model interface. |
| 370 |
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* |
| 371 |
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* \returns Number of active messages. |
| 372 |
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*/ |
| 373 |
|
✗ |
int MessageModel::rowCount(const QModelIndex &index) const |
| 374 |
|
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{ |
| 375 |
|
✗ |
if (!index.isValid()) { |
| 376 |
|
✗ |
return impl->messageItemList.count(); |
| 377 |
|
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} |
| 378 |
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else { |
| 379 |
|
✗ |
return 0; |
| 380 |
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} |
| 381 |
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} |
| 382 |
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|
| 383 |
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/****************************************************************************/ |
| 384 |
|
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|
| 385 |
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/** Implements the model interface. |
| 386 |
|
|
* |
| 387 |
|
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* \returns Number of columns. |
| 388 |
|
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*/ |
| 389 |
|
✗ |
int MessageModel::columnCount(const QModelIndex &index) const |
| 390 |
|
|
{ |
| 391 |
|
|
Q_UNUSED(index); |
| 392 |
|
✗ |
return 3; |
| 393 |
|
|
} |
| 394 |
|
|
|
| 395 |
|
|
/****************************************************************************/ |
| 396 |
|
|
|
| 397 |
|
|
/** Implements the Model interface. |
| 398 |
|
|
*/ |
| 399 |
|
✗ |
QVariant MessageModel::data(const QModelIndex &index, int role) const |
| 400 |
|
|
{ |
| 401 |
|
✗ |
if (!index.isValid()) { |
| 402 |
|
✗ |
return QVariant(); |
| 403 |
|
|
} |
| 404 |
|
|
|
| 405 |
|
✗ |
auto msgItem = impl->messageItemList[index.row()]; |
| 406 |
|
|
|
| 407 |
|
✗ |
switch (index.column()) { |
| 408 |
|
✗ |
case TextColumn: // text |
| 409 |
|
✗ |
switch (role) { |
| 410 |
|
✗ |
case Qt::DisplayRole: |
| 411 |
|
✗ |
return msgItem->getText(impl->lang); |
| 412 |
|
✗ |
case Qt::DecorationRole: |
| 413 |
|
✗ |
return impl->iconHash[msgItem->getType()]; |
| 414 |
|
✗ |
case DecorationPathRole: |
| 415 |
|
✗ |
return impl->iconPathHash[msgItem->getType()]; |
| 416 |
|
✗ |
case TimeStringRole: |
| 417 |
|
|
// it is necessary to return other columns under |
| 418 |
|
|
// column 0 because in QML a View can't address |
| 419 |
|
|
// from column but only from roles |
| 420 |
|
✗ |
return msgItem->getTimeString(); |
| 421 |
|
✗ |
case ResetTimeStringRole: |
| 422 |
|
✗ |
return msgItem->getResetTimeString(); |
| 423 |
|
✗ |
case MessageTypeRole: |
| 424 |
|
✗ |
return msgItem->getType(); |
| 425 |
|
✗ |
case Qt::ToolTipRole: |
| 426 |
|
✗ |
return impl->wrapText( |
| 427 |
|
✗ |
msgItem->getDescription(impl->lang)); |
| 428 |
|
✗ |
default: |
| 429 |
|
✗ |
return QVariant(); |
| 430 |
|
|
} |
| 431 |
|
|
break; |
| 432 |
|
|
|
| 433 |
|
✗ |
case TimeOccurredColumn: // set time |
| 434 |
|
✗ |
switch (role) { |
| 435 |
|
✗ |
case Qt::DisplayRole: |
| 436 |
|
✗ |
return msgItem->getTimeString(); |
| 437 |
|
✗ |
case Qt::UserRole + 1: |
| 438 |
|
✗ |
return ""; |
| 439 |
|
✗ |
default: |
| 440 |
|
✗ |
return QVariant(); |
| 441 |
|
|
} |
| 442 |
|
|
break; |
| 443 |
|
|
|
| 444 |
|
✗ |
case TimeResetColumn: // reset time |
| 445 |
|
✗ |
switch (role) { |
| 446 |
|
✗ |
case Qt::DisplayRole: |
| 447 |
|
✗ |
return msgItem->getResetTimeString(); |
| 448 |
|
✗ |
case Qt::UserRole + 1: |
| 449 |
|
✗ |
return ""; |
| 450 |
|
✗ |
default: |
| 451 |
|
✗ |
return QVariant(); |
| 452 |
|
|
} |
| 453 |
|
|
break; |
| 454 |
|
|
|
| 455 |
|
✗ |
default: |
| 456 |
|
✗ |
return QVariant(); |
| 457 |
|
|
} |
| 458 |
|
|
} |
| 459 |
|
|
|
| 460 |
|
|
/****************************************************************************/ |
| 461 |
|
|
|
| 462 |
|
|
/** Implements the Model interface. |
| 463 |
|
|
*/ |
| 464 |
|
|
QVariant |
| 465 |
|
✗ |
MessageModel::headerData(int section, Qt::Orientation o, int role) const |
| 466 |
|
|
{ |
| 467 |
|
✗ |
if (role == Qt::DisplayRole && o == Qt::Horizontal) { |
| 468 |
|
✗ |
switch (section) { |
| 469 |
|
✗ |
case TextColumn: |
| 470 |
|
✗ |
return QtPdCom::MessageModel::tr("Message"); |
| 471 |
|
|
|
| 472 |
|
✗ |
case TimeOccurredColumn: |
| 473 |
|
✗ |
return QtPdCom::MessageModel::tr("Time"); |
| 474 |
|
|
|
| 475 |
|
✗ |
case TimeResetColumn: |
| 476 |
|
✗ |
return QtPdCom::MessageModel::tr("Reset"); |
| 477 |
|
|
|
| 478 |
|
✗ |
default: |
| 479 |
|
✗ |
return QVariant(); |
| 480 |
|
|
} |
| 481 |
|
|
} |
| 482 |
|
|
else { |
| 483 |
|
✗ |
return QVariant(); |
| 484 |
|
|
} |
| 485 |
|
|
} |
| 486 |
|
|
|
| 487 |
|
|
/****************************************************************************/ |
| 488 |
|
|
|
| 489 |
|
|
/** Implements the Model interface. |
| 490 |
|
|
*/ |
| 491 |
|
✗ |
Qt::ItemFlags MessageModel::flags(const QModelIndex &index) const |
| 492 |
|
|
{ |
| 493 |
|
✗ |
if (!index.isValid()) { |
| 494 |
|
✗ |
return Qt::ItemFlags(); |
| 495 |
|
|
} |
| 496 |
|
|
|
| 497 |
|
✗ |
auto msgItem {impl->messageItemList[index.row()]}; |
| 498 |
|
✗ |
return msgItem->isActive() ? Qt::ItemIsEnabled : Qt::ItemFlags(); |
| 499 |
|
|
} |
| 500 |
|
|
|
| 501 |
|
|
/****************************************************************************/ |
| 502 |
|
|
|
| 503 |
|
|
/** Additional Rolename for decoration for use in QML views |
| 504 |
|
|
*/ |
| 505 |
|
|
|
| 506 |
|
✗ |
QHash<int, QByteArray> MessageModel::roleNames() const |
| 507 |
|
|
{ |
| 508 |
|
|
// default role names |
| 509 |
|
✗ |
QHash<int, QByteArray> roles = QAbstractTableModel::roleNames(); |
| 510 |
|
|
|
| 511 |
|
|
// extended role names |
| 512 |
|
✗ |
roles[DecorationPathRole] = "decorationPath"; |
| 513 |
|
✗ |
roles[TimeStringRole] = "timeString"; |
| 514 |
|
✗ |
roles[ResetTimeStringRole] = "resetTimeString"; |
| 515 |
|
✗ |
roles[MessageTypeRole] = "messageTyp"; |
| 516 |
|
✗ |
return roles; |
| 517 |
|
|
} |
| 518 |
|
|
|
| 519 |
|
|
/****************************************************************************/ |
| 520 |
|
|
|
| 521 |
|
✗ |
void MessageModel::fetchMore(const QModelIndex &parent) |
| 522 |
|
|
{ |
| 523 |
|
|
#if PD_DEBUG_MESSAGE_MODEL |
| 524 |
|
|
qDebug() << __func__ << parent; |
| 525 |
|
|
#endif |
| 526 |
|
✗ |
if (canFetchMore(parent)) { |
| 527 |
|
|
#if PD_DEBUG_MESSAGE_MODEL |
| 528 |
|
|
qDebug() << __func__ << parent << "fetching"; |
| 529 |
|
|
#endif |
| 530 |
|
✗ |
impl->getHistoryMessage(); |
| 531 |
|
|
} |
| 532 |
|
|
} |
| 533 |
|
|
|
| 534 |
|
|
/****************************************************************************/ |
| 535 |
|
|
|
| 536 |
|
✗ |
bool MessageModel::canFetchMore(const QModelIndex &parent) const |
| 537 |
|
|
{ |
| 538 |
|
✗ |
bool ret = !parent.isValid() and impl->canFetchMore |
| 539 |
|
✗ |
and impl->historicSeqNo |
| 540 |
|
✗ |
and impl->messageItemList.count() < impl->rowLimit; |
| 541 |
|
|
#if PD_DEBUG_MESSAGE_MODEL |
| 542 |
|
|
qDebug() << __func__ << parent << "can" << impl->canFetchMore << "hist" |
| 543 |
|
|
<< impl->historicSeqNo << "space" |
| 544 |
|
|
<< (impl->messageItemList.count() < impl->rowLimit) << "ret" |
| 545 |
|
|
<< ret; |
| 546 |
|
|
#endif |
| 547 |
|
✗ |
return ret; |
| 548 |
|
|
} |
| 549 |
|
|
|
| 550 |
|
|
/****************************************************************************/ |
| 551 |
|
|
|
| 552 |
|
|
/** Event handler. |
| 553 |
|
|
*/ |
| 554 |
|
✗ |
bool MessageModel::event(QEvent *event /**< Paint event flags. */ |
| 555 |
|
|
) |
| 556 |
|
|
{ |
| 557 |
|
✗ |
if (event->type() == QEvent::LanguageChange) { |
| 558 |
|
✗ |
emit headerDataChanged(Qt::Horizontal, 0, 1); |
| 559 |
|
|
} |
| 560 |
|
|
|
| 561 |
|
✗ |
return QAbstractTableModel::event(event); |
| 562 |
|
|
} |
| 563 |
|
|
|
| 564 |
|
|
/****************************************************************************/ |
| 565 |
|
|
|