summaryrefslogtreecommitdiffstats
path: root/src/declarative/qml/qmlpropertycache.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/declarative/qml/qmlpropertycache.cpp')
-rw-r--r--src/declarative/qml/qmlpropertycache.cpp213
1 files changed, 213 insertions, 0 deletions
diff --git a/src/declarative/qml/qmlpropertycache.cpp b/src/declarative/qml/qmlpropertycache.cpp
new file mode 100644
index 0000000..63ce00c
--- /dev/null
+++ b/src/declarative/qml/qmlpropertycache.cpp
@@ -0,0 +1,213 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qmlpropertycache_p.h"
+#include <private/qmlengine_p.h>
+#include <QtDeclarative/qmlbinding.h>
+
+QT_BEGIN_NAMESPACE
+
+void QmlPropertyCache::Data::load(const QMetaProperty &p)
+{
+ propType = p.userType();
+ if (propType == QVariant::LastType)
+ propType = qMetaTypeId<QVariant>();
+ coreIndex = p.propertyIndex();
+ notifyIndex = p.notifySignalIndex();
+ name = QLatin1String(p.name());
+
+ if (p.isConstant())
+ flags |= Data::IsConstant;
+ if (p.isWritable())
+ flags |= Data::IsWritable;
+
+ if (propType == qMetaTypeId<QmlBinding *>()) {
+ flags |= Data::IsQmlBinding;
+ } else if (p.isEnumType()) {
+ flags |= Data::IsEnumType;
+ } else {
+ QmlMetaType::TypeCategory cat = QmlMetaType::typeCategory(propType);
+ if (cat == QmlMetaType::Object)
+ flags |= Data::IsQObjectDerived;
+ else if (cat == QmlMetaType::List)
+ flags |= Data::IsQList;
+ else if (cat == QmlMetaType::QmlList)
+ flags |= Data::IsQmlList;
+ }
+}
+
+void QmlPropertyCache::Data::load(const QMetaMethod &m)
+{
+ name = QLatin1String(m.signature());
+ int parenIdx = name.indexOf(QLatin1Char('('));
+ Q_ASSERT(parenIdx != -1);
+ name = name.left(parenIdx);
+
+ coreIndex = m.methodIndex();
+ flags |= Data::IsFunction;
+}
+
+
+QmlPropertyCache::QmlPropertyCache()
+{
+}
+
+QmlPropertyCache::~QmlPropertyCache()
+{
+ for (int ii = 0; ii < indexCache.count(); ++ii)
+ indexCache.at(ii)->release();
+
+ for (StringCache::ConstIterator iter = stringCache.begin();
+ iter != stringCache.end(); ++iter)
+ (*iter)->release();
+
+ for (IdentifierCache::ConstIterator iter = identifierCache.begin();
+ iter != identifierCache.end(); ++iter)
+ (*iter)->release();
+}
+
+QmlPropertyCache::Data QmlPropertyCache::create(const QMetaObject *metaObject,
+ const QString &property)
+{
+ Q_ASSERT(metaObject);
+
+ QmlPropertyCache::Data rv;
+
+ int idx = metaObject->indexOfProperty(property.toUtf8());
+ if (idx != -1) {
+ rv.load(metaObject->property(idx));
+ return rv;
+ }
+
+ int methodCount = metaObject->methodCount();
+ for (int ii = methodCount - 1; ii >= 0; --ii) {
+ QMetaMethod m = metaObject->method(ii);
+ QString methodName = QLatin1String(m.signature());
+
+ int parenIdx = methodName.indexOf(QLatin1Char('('));
+ Q_ASSERT(parenIdx != -1);
+ methodName = methodName.left(parenIdx);
+
+ if (methodName == property) {
+ rv.load(m);
+ return rv;
+ }
+ }
+
+ return rv;
+}
+
+// ### Optimize - check engine for the parent meta object etc.
+QmlPropertyCache *QmlPropertyCache::create(QmlEngine *engine, const QMetaObject *metaObject)
+{
+ Q_ASSERT(engine);
+ Q_ASSERT(metaObject);
+
+ QmlPropertyCache *cache = new QmlPropertyCache;
+
+ QmlEnginePrivate *enginePriv = QmlEnginePrivate::get(engine);
+
+ // ### The properties/methods should probably be spliced on a per-metaobject basis
+ int propCount = metaObject->propertyCount();
+
+ cache->indexCache.resize(propCount);
+ for (int ii = propCount - 1; ii >= 0; --ii) {
+ QMetaProperty p = metaObject->property(ii);
+ QString propName = QLatin1String(p.name());
+
+ RData *data = new RData;
+ data->identifier = enginePriv->objectClass->createPersistentIdentifier(propName);
+
+ data->load(p);
+
+ cache->indexCache[ii] = data;
+
+ if (cache->stringCache.contains(propName))
+ continue;
+
+ cache->stringCache.insert(propName, data);
+ cache->identifierCache.insert(data->identifier.identifier, data);
+ data->addref();
+ data->addref();
+ }
+
+ int methodCount = metaObject->methodCount();
+ for (int ii = methodCount - 1; ii >= 0; --ii) {
+ QMetaMethod m = metaObject->method(ii);
+ QString methodName = QLatin1String(m.signature());
+
+ int parenIdx = methodName.indexOf(QLatin1Char('('));
+ Q_ASSERT(parenIdx != -1);
+ methodName = methodName.left(parenIdx);
+
+ if (cache->stringCache.contains(methodName))
+ continue;
+
+ RData *data = new RData;
+ data->identifier = enginePriv->objectClass->createPersistentIdentifier(methodName);
+
+ data->load(m);
+
+ cache->stringCache.insert(methodName, data);
+ cache->identifierCache.insert(data->identifier.identifier, data);
+ data->addref();
+ data->addref();
+ }
+
+ return cache;
+}
+
+QmlPropertyCache::Data *
+QmlPropertyCache::property(int index) const
+{
+ if (index < 0 || index >= indexCache.count())
+ return 0;
+
+ return indexCache.at(index);
+}
+
+QmlPropertyCache::Data *
+QmlPropertyCache::property(const QString &str) const
+{
+ return stringCache.value(str);
+}
+
+QT_END_NAMESPACE
generated by cgit v0.12 at 2025-02-01 14:57:31 (GMT)