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/*
objectlistmodel.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2010 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Volker Krause <volker.krause@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#include "objectlistmodel.h"
#include "probe.h"
#include <QThread>
#include <QCoreApplication>
#include <algorithm>
#include <iostream>
using namespace GammaRay;
using namespace std;
ObjectListModel::ObjectListModel(Probe *probe)
: ObjectModelBase<QAbstractTableModel>(probe)
{
connect(probe, &Probe::objectCreated,
this, &ObjectListModel::objectAdded);
connect(probe, &Probe::objectDestroyed,
this, &ObjectListModel::objectRemoved);
}
QPair<int, QVariant> ObjectListModel::defaultSelectedItem()
{
// select the qApp object (if any) in the object model
return QPair<int, QVariant>(ObjectModel::ObjectRole, QVariant::fromValue<QObject *>(qApp));
}
QVariant ObjectListModel::data(const QModelIndex &index, int role) const
{
QMutexLocker lock(Probe::objectLock());
if (index.row() >= 0 && index.row() < m_objects.size()) {
QObject *obj = m_objects.at(index.row());
if (Probe::instance()->isValidObject(obj))
return dataForObject(obj, index, role);
}
return QVariant();
}
int ObjectListModel::columnCount(const QModelIndex &parent) const
{
if (parent.isValid())
return 0;
return ObjectModelBase<QAbstractTableModel>::columnCount(parent);
}
int ObjectListModel::rowCount(const QModelIndex &parent) const
{
if (parent.isValid())
return 0;
return m_objects.size();
}
void ObjectListModel::objectAdded(QObject *obj)
{
// see Probe::objectCreated, that promises a valid object in the main thread
Q_ASSERT(QThread::currentThread() == thread());
Q_ASSERT(obj);
Q_ASSERT(Probe::instance()->isValidObject(obj));
auto it = std::lower_bound(m_objects.begin(), m_objects.end(), obj);
Q_ASSERT(it == m_objects.end() || *it != obj);
const int row = std::distance(m_objects.begin(), it);
Q_ASSERT(row >= 0 && row <= m_objects.size());
beginInsertRows(QModelIndex(), row, row);
m_objects.insert(it, obj);
Q_ASSERT(m_objects.at(row) == obj);
endInsertRows();
}
void ObjectListModel::objectRemoved(QObject *obj)
{
Q_ASSERT(thread() == QThread::currentThread());
auto it = std::lower_bound(m_objects.begin(), m_objects.end(), obj);
if (it == m_objects.end() || *it != obj) {
// not found
return;
}
const int row = std::distance(m_objects.begin(), it);
Q_ASSERT(row >= 0 && row < m_objects.size());
Q_ASSERT(m_objects.at(row) == obj);
beginRemoveRows(QModelIndex(), row, row);
m_objects.erase(it);
endRemoveRows();
}
const QVector<QObject *> &ObjectListModel::objects() const
{
return m_objects;
}
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