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/*
bindingnode.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2017 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Anton Kreuzkamp <anton.kreuzkamp@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
// Own
#include "bindingnode.h"
#include <core/util.h>
// Qt
#include <QDebug>
#include <QFile>
#include <QMetaProperty>
using namespace GammaRay;
BindingNode::BindingNode(QObject *obj, int propIndex, BindingNode *parent)
: m_parent(parent)
, m_object(obj)
, m_propertyIndex(propIndex)
{
Q_ASSERT(obj);
m_canonicalName = m_object->metaObject() ? m_object->metaObject()->property(m_propertyIndex).name() : QStringLiteral(":(");
refreshValue();
checkForLoops();
}
bool BindingNode::operator==(const BindingNode &other) const
{
return m_object == other.m_object && m_propertyIndex == other.m_propertyIndex;
}
void BindingNode::checkForLoops()
{
BindingNode *ancestor = m_parent;
while (ancestor) {
if (ancestor->m_object == m_object
&& ancestor->m_propertyIndex == m_propertyIndex) {
m_foundBindingLoop = true;
return;
}
ancestor = ancestor->m_parent;
}
m_foundBindingLoop = false;
}
QMetaProperty BindingNode::property() const
{
return m_object->metaObject()->property(m_propertyIndex);
}
QVariant BindingNode::cachedValue() const
{
return m_value;
}
QVariant BindingNode::readValue() const
{
return m_object->metaObject()->property(m_propertyIndex).read(m_object);
}
void BindingNode::refreshValue()
{
m_value = m_object->metaObject()->property(m_propertyIndex).read(m_object);
}
void BindingNode::setParent(BindingNode *newParent)
{
m_parent = newParent;
checkForLoops();
}
GammaRay::BindingNode *GammaRay::BindingNode::parent() const
{
return m_parent;
}
QObject *GammaRay::BindingNode::object() const
{
return m_object;
}
int GammaRay::BindingNode::propertyIndex() const
{
return m_propertyIndex;
}
const QString &GammaRay::BindingNode::canonicalName() const
{
return m_canonicalName;
}
bool GammaRay::BindingNode::hasFoundBindingLoop() const
{
return m_foundBindingLoop;
}
bool GammaRay::BindingNode::isPartOfBindingLoop() const
{
if (m_foundBindingLoop) {
return true;
}
for (const auto &dependency : m_dependencies) {
if (dependency->isPartOfBindingLoop()) {
return true;
}
}
return false;
}
GammaRay::SourceLocation GammaRay::BindingNode::sourceLocation() const
{
return m_sourceLocation;
}
std::vector<std::unique_ptr<BindingNode>> &GammaRay::BindingNode::dependencies()
{
return m_dependencies;
}
const std::vector<std::unique_ptr<BindingNode>> &GammaRay::BindingNode::dependencies() const
{
return m_dependencies;
}
void BindingNode::setCanonicalName(const QString &name)
{
m_canonicalName = name;
}
void BindingNode::setSourceLocation(const SourceLocation &location)
{
m_sourceLocation = location;
}
uint BindingNode::depth() const
{
uint depth = 0;
if (m_foundBindingLoop) {
return std::numeric_limits<uint>::max(); // to be considered as infinity.
}
for (const auto &dependency : m_dependencies) {
uint depDepth = dependency->depth();
if (depDepth == std::numeric_limits<uint>::max()) {
depth = depDepth;
break;
} else if (depDepth + 1 > depth) {
depth = depDepth + 1;
}
}
return depth;
}
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