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/*
propertyaggregator.cpp
This file is part of GammaRay, the Qt application inspection and
manipulation tool.
Copyright (C) 2015-2018 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com
Author: Volker Krause <volker.krause@kdab.com>
Licensees holding valid commercial KDAB GammaRay licenses may use this file in
accordance with GammaRay Commercial License Agreement provided with the Software.
Contact info@kdab.com if any conditions of this licensing are not clear to you.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "propertyaggregator.h"
#include "propertydata.h"
#include "objectinstance.h"
#include <QDebug>
#include <algorithm>
#include <numeric>
using namespace GammaRay;
PropertyAggregator::PropertyAggregator(QObject *parent)
: PropertyAdaptor(parent)
{
}
PropertyAggregator::~PropertyAggregator()
{
}
void PropertyAggregator::doSetObject(const ObjectInstance &oi)
{
std::for_each(m_propertyAdaptors.begin(), m_propertyAdaptors.end(), [&oi](PropertyAdaptor *pa) {
pa->setObject(oi);
});
}
int PropertyAggregator::count() const
{
if (!object().isValid())
return 0;
return std::accumulate(m_propertyAdaptors.constBegin(), m_propertyAdaptors.constEnd(), 0,
[](int lhs, PropertyAdaptor *rhs) {
return lhs + rhs->count();
});
}
PropertyData PropertyAggregator::propertyData(int index) const
{
if (!object().isValid())
return PropertyData();
int offset = 0;
foreach (const auto adaptor, m_propertyAdaptors) {
if (index < offset + adaptor->count())
return adaptor->propertyData(index - offset);
offset += adaptor->count();
}
Q_ASSERT(false);
return PropertyData();
}
void PropertyAggregator::writeProperty(int index, const QVariant &value)
{
if (!object().isValid())
return;
int offset = 0;
foreach (const auto adaptor, m_propertyAdaptors) {
if (index < offset + adaptor->count()) {
adaptor->writeProperty(index - offset, value);
m_oi = adaptor->object(); // propagate changes back to us, particularly matters for value types
return;
}
offset += adaptor->count();
}
Q_ASSERT(false);
}
bool PropertyAggregator::canAddProperty() const
{
auto count
= std::count_if(m_propertyAdaptors.constBegin(), m_propertyAdaptors.constEnd(),
[](PropertyAdaptor *pa) {
return pa->canAddProperty();
});
return count == 1;
}
void PropertyAggregator::addProperty(const PropertyData &data)
{
if (!object().isValid())
return;
Q_ASSERT(canAddProperty());
foreach (const auto adaptor, m_propertyAdaptors) {
if (adaptor->canAddProperty()) {
adaptor->addProperty(data);
return;
}
}
Q_ASSERT(false);
}
void PropertyAggregator::resetProperty(int index)
{
if (!object().isValid())
return;
int offset = 0;
foreach (const auto adaptor, m_propertyAdaptors) {
if (index < offset + adaptor->count()) {
adaptor->resetProperty(index - offset);
return;
}
offset += adaptor->count();
}
Q_ASSERT(false);
}
void PropertyAggregator::addPropertyAdaptor(PropertyAdaptor *adaptor)
{
m_propertyAdaptors.push_back(adaptor);
connect(adaptor, SIGNAL(propertyChanged(int,int)), this, SLOT(slotPropertyChanged(int,int)));
connect(adaptor, SIGNAL(propertyAdded(int,int)), this, SLOT(slotPropertyAdded(int,int)));
connect(adaptor, SIGNAL(propertyRemoved(int,int)), this, SLOT(slotPropertyRemoved(int,int)));
connect(adaptor, SIGNAL(objectInvalidated()), this, SIGNAL(objectInvalidated()));
}
void PropertyAggregator::slotPropertyChanged(int first, int last)
{
auto source = sender();
Q_ASSERT(source);
int offset = 0;
foreach (auto pa, m_propertyAdaptors) {
if (pa == source) {
emit propertyChanged(first + offset, last + offset);
return;
} else {
offset += pa->count();
}
}
}
void PropertyAggregator::slotPropertyAdded(int first, int last)
{
auto source = sender();
Q_ASSERT(source);
int offset = 0;
foreach (auto pa, m_propertyAdaptors) {
if (pa == source) {
emit propertyAdded(first + offset, last + offset);
return;
} else {
offset += pa->count();
}
}
}
void PropertyAggregator::slotPropertyRemoved(int first, int last)
{
auto source = sender();
Q_ASSERT(source);
int offset = 0;
foreach (auto pa, m_propertyAdaptors) {
if (pa == source) {
emit propertyRemoved(first + offset, last + offset);
return;
} else {
offset += pa->count();
}
}
}
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