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#include "nmAttrRegistry.h"
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#include "nmDataAttribute.h"
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nmAttrRegistry::nmAttrRegistry(QObject* parent)
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: QObject(parent)
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, m_bSyncing(false)
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{
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}
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nmAttrRegistry::~nmAttrRegistry()
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{
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// 映射中的指针不拥有所有权，不需 delete
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// nmDataAttribute 的 destroyed 信号已自动清理映射
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m_nameToPtr.clear();
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m_ptrToName.clear();
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}
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void nmAttrRegistry::regAttr(QString name, nmDataAttribute* pAttr)
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{
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if (name.isEmpty() || pAttr == nullptr) {
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return;
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}
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// 如果同名已注册，先断开旧连接
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if (m_nameToPtr.contains(name)) {
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nmDataAttribute* pOld = m_nameToPtr[name];
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if (pOld != nullptr && pOld != pAttr) {
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disconnect(pOld, SIGNAL(sigValueChanged()), this, SLOT(onAttrValueChanged()));
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disconnect(pOld, SIGNAL(destroyed(QObject*)), this, SLOT(onAttrDestroyed(QObject*)));
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m_ptrToName.remove(pOld);
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}
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}
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// 如果同指针已注册（换名），先清理旧名
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if (m_ptrToName.contains(pAttr)) {
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QString oldName = m_ptrToName[pAttr];
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if (oldName != name) {
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m_nameToPtr.remove(oldName);
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}
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}
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m_nameToPtr[name] = pAttr;
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m_ptrToName[pAttr] = name;
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// 连接 nmDataAttribute 的信号
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connect(pAttr, SIGNAL(sigValueChanged()),
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this, SLOT(onAttrValueChanged()));
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connect(pAttr, SIGNAL(destroyed(QObject*)),
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this, SLOT(onAttrDestroyed(QObject*)));
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}
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void nmAttrRegistry::clear()
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{
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// 断开所有 nmDataAttribute 的信号连接
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QMap<nmDataAttribute*, QString>::iterator iter = m_ptrToName.begin();
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for (; iter != m_ptrToName.end(); iter++) {
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nmDataAttribute* pAttr = iter.key();
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if (pAttr != nullptr) {
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disconnect(pAttr, SIGNAL(sigValueChanged()), this, SLOT(onAttrValueChanged()));
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disconnect(pAttr, SIGNAL(destroyed(QObject*)), this, SLOT(onAttrDestroyed(QObject*)));
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}
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}
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m_nameToPtr.clear();
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m_ptrToName.clear();
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}
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QMap<QString, QVariant> nmAttrRegistry::collect(const QStringList& names) const
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{
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QMap<QString, QVariant> mapResult;
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for (int i = 0; i < names.size(); i++) {
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QString name = names[i];
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nmDataAttribute* pAttr = m_nameToPtr.value(name, nullptr);
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if (pAttr != nullptr) {
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mapResult[name] = pAttr->getValue();
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}
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}
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return mapResult;
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}
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void nmAttrRegistry::setValue(QString name, QVariant value)
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{
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nmDataAttribute* pAttr = m_nameToPtr.value(name, nullptr);
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if (pAttr == nullptr) {
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return;
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}
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m_bSyncing = true;
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pAttr->setValue(value); // → nmDataAttribute 发 sigValueChanged
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// → onAttrValueChanged 检测 m_bSyncing=true → 跳过 sigAttrChanged
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m_bSyncing = false;
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}
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void nmAttrRegistry::onAttrValueChanged()
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{
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nmDataAttribute* pAttr = qobject_cast<nmDataAttribute*>(sender());
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if (pAttr == nullptr) {
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return;
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}
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// 防循环：UI→Data 链路中跳过
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if (m_bSyncing) {
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return;
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}
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QString name = m_ptrToName.value(pAttr, "");
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if (name.isEmpty()) {
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return;
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}
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emit sigAttrChanged(name, pAttr->getValue());
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}
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void nmAttrRegistry::onAttrDestroyed(QObject* pObj)
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{
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// nmDataAttribute 析构时发出 destroyed，此时对象已部分销毁
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// 只用指针值做 key，不访问任何成员
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nmDataAttribute* pAttr = static_cast<nmDataAttribute*>(pObj);
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QString name = m_ptrToName.value(pAttr, "");
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if (!name.isEmpty()) {
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m_nameToPtr.remove(name);
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}
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m_ptrToName.remove(pAttr);
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}
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