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/*
propertyaggregator.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2015 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 "propertyaggregator.h"
#include "propertydata.h"
#include "objectinstance.h"
#include <compat/qasconst.h>
#include <QDebug>
#include <algorithm>
#include <numeric>
using namespace GammaRay;
PropertyAggregator::PropertyAggregator(QObject *parent)
: PropertyAdaptor(parent)
{
}
PropertyAggregator::~PropertyAggregator() = default;
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;
for (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;
for (const auto adaptor : qAsConst(m_propertyAdaptors)) {
if (index < offset + adaptor->count()) {
QPointer<PropertyAggregator> guard(this);
adaptor->writeProperty(index - offset, value);
if (guard) {
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());
for (const auto adaptor : qAsConst(m_propertyAdaptors)) {
if (adaptor->canAddProperty()) {
adaptor->addProperty(data);
return;
}
}
Q_ASSERT(false);
}
void PropertyAggregator::resetProperty(int index)
{
if (!object().isValid())
return;
int offset = 0;
for (const auto adaptor : qAsConst(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, &PropertyAdaptor::propertyChanged, this, &PropertyAggregator::slotPropertyChanged);
connect(adaptor, &PropertyAdaptor::propertyAdded, this, &PropertyAggregator::slotPropertyAdded);
connect(adaptor, &PropertyAdaptor::propertyRemoved, this, &PropertyAggregator::slotPropertyRemoved);
connect(adaptor, &PropertyAdaptor::objectInvalidated, this, &PropertyAdaptor::objectInvalidated);
}
void PropertyAggregator::slotPropertyChanged(int first, int last)
{
auto source = sender();
Q_ASSERT(source);
int offset = 0;
for (auto pa : qAsConst(m_propertyAdaptors)) {
if (pa == source) {
emit propertyChanged(first + offset, last + offset);
return;
}
offset += pa->count();
}
}
void PropertyAggregator::slotPropertyAdded(int first, int last)
{
auto source = sender();
Q_ASSERT(source);
int offset = 0;
for (auto pa : qAsConst(m_propertyAdaptors)) {
if (pa == source) {
emit propertyAdded(first + offset, last + offset);
return;
}
offset += pa->count();
}
}
void PropertyAggregator::slotPropertyRemoved(int first, int last)
{
auto source = sender();
Q_ASSERT(source);
int offset = 0;
for (auto pa : qAsConst(m_propertyAdaptors)) {
if (pa == source) {
emit propertyRemoved(first + offset, last + offset);
return;
}
offset += pa->count();
}
}
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