diff options
Diffstat (limited to 'src/declarative/qml/qmlbinding.cpp')
-rw-r--r-- | src/declarative/qml/qmlbinding.cpp | 308 |
1 files changed, 0 insertions, 308 deletions
diff --git a/src/declarative/qml/qmlbinding.cpp b/src/declarative/qml/qmlbinding.cpp deleted file mode 100644 index feadd0f..0000000 --- a/src/declarative/qml/qmlbinding.cpp +++ /dev/null @@ -1,308 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying -** this package. -** -** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qmlbinding.h" -#include "qmlbinding_p.h" - -#include "qml.h" -#include "qmlcontext.h" -#include "qmlinfo.h" -#include "qmlcontext_p.h" -#include "qmldeclarativedata_p.h" -#include "qmlstringconverters_p.h" - -#include <qfxperf_p_p.h> - -#include <QVariant> -#include <QtCore/qdebug.h> - -QT_BEGIN_NAMESPACE - -QML_DEFINE_NOCREATE_TYPE(QmlBinding); - -QmlBindingData::QmlBindingData() -: updating(false), enabled(false) -{ -} - -QmlBindingData::~QmlBindingData() -{ - removeError(); -} - -void QmlBindingData::refresh() -{ - if (enabled && !updating && q) { - QmlBinding *b = static_cast<QmlBinding *>(QmlExpressionPrivate::get(q)); - b->update(); - } -} - -QmlBindingPrivate::QmlBindingPrivate() -: QmlExpressionPrivate(new QmlBindingData) -{ -} - -QmlBinding::QmlBinding(void *data, QmlRefCount *rc, QObject *obj, QmlContext *ctxt, const QString &url, int lineNumber, QObject *parent) -: QmlExpression(ctxt, data, rc, obj, url, lineNumber, *new QmlBindingPrivate) -{ - setParent(parent); -} - -QmlBinding::QmlBinding(const QString &str, QObject *obj, QmlContext *ctxt, QObject *parent) -: QmlExpression(ctxt, str, obj, *new QmlBindingPrivate) -{ - setParent(parent); -} - -QmlBinding::~QmlBinding() -{ -} - -void QmlBinding::setTarget(const QmlMetaProperty &prop) -{ - Q_D(QmlBinding); - d->bindingData()->property = prop; - - update(); -} - -QmlMetaProperty QmlBinding::property() const -{ - Q_D(const QmlBinding); - return d->bindingData()->property; -} - -void QmlBinding::update(QmlMetaProperty::WriteFlags flags) -{ - Q_D(QmlBinding); - -#ifdef Q_ENABLE_PERFORMANCE_LOG - QmlPerfTimer<QmlPerf::BindableValueUpdate> bu; -#endif - QmlBindingData *data = d->bindingData(); - - if (!data->enabled) - return; - - data->addref(); - - if (!data->updating) { - data->updating = true; - - if (data->property.propertyCategory() == QmlMetaProperty::Bindable) { - - int idx = data->property.coreIndex(); - Q_ASSERT(idx != -1); - - - QmlBinding *t = this; - int status = -1; - void *a[] = { &t, 0, &status, &flags }; - QMetaObject::metacall(data->property.object(), - QMetaObject::WriteProperty, - idx, a); - - } else { - bool isUndefined = false; - QVariant value = this->value(&isUndefined); - - if (isUndefined && !data->error.isValid() && data->property.isResettable()) { - - data->property.reset(); - - } else if (isUndefined && !data->error.isValid()) { - - QUrl url = QUrl(data->url); - int line = data->line; - if (url.isEmpty()) url = QUrl(QLatin1String("<Unknown File>")); - - data->error.setUrl(url); - data->error.setLine(line); - data->error.setColumn(-1); - data->error.setDescription(QLatin1String("Unable to assign [undefined] to ") + QLatin1String(QMetaType::typeName(data->property.propertyType()))); - - } else if (!isUndefined && data->property.object() && - !data->property.write(value, flags)) { - - QUrl url = QUrl(data->url); - int line = data->line; - if (url.isEmpty()) url = QUrl(QLatin1String("<Unknown File>")); - - const char *valueType = 0; - if (value.userType() == QVariant::Invalid) valueType = "null"; - else valueType = QMetaType::typeName(value.userType()); - - data->error.setUrl(url); - data->error.setLine(line); - data->error.setColumn(-1); - data->error.setDescription(QLatin1String("Unable to assign ") + - QLatin1String(valueType) + - QLatin1String(" to ") + - QLatin1String(QMetaType::typeName(data->property.propertyType()))); - } - - if (data->error.isValid()) { - QmlEnginePrivate *p = (data->context() && data->context()->engine())? - QmlEnginePrivate::get(data->context()->engine()):0; - if (!data->addError(p)) - qWarning().nospace() << qPrintable(this->error().toString()); - } else { - data->removeError(); - } - } - - data->updating = false; - } else { - qmlInfo(data->property.object()) << tr("Binding loop detected for property \"%1\"").arg(data->property.name()); - } - - data->release(); -} - -void QmlBinding::emitValueChanged() -{ - update(); - // don't bother calling valueChanged() -} - -void QmlBinding::setEnabled(bool e, QmlMetaProperty::WriteFlags flags) -{ - Q_D(QmlBinding); - d->bindingData()->enabled = e; - setTrackChange(e); - - QmlAbstractBinding::setEnabled(e, flags); - - if (e) { - addToObject(d->bindingData()->property.object()); - update(flags); - } else { - removeFromObject(); - } -} - -int QmlBinding::propertyIndex() -{ - Q_D(QmlBinding); - return d->bindingData()->property.coreIndex(); -} - -bool QmlBinding::enabled() const -{ - Q_D(const QmlBinding); - - return d->bindingData()->enabled; -} - -QString QmlBinding::expression() const -{ - return QmlExpression::expression(); -} - -QmlAbstractBinding::QmlAbstractBinding() -: m_object(0), m_mePtr(0), m_prevBinding(0), m_nextBinding(0) -{ -} - -QmlAbstractBinding::~QmlAbstractBinding() -{ - removeFromObject(); - if (m_mePtr) - *m_mePtr = 0; -} - -void QmlAbstractBinding::destroy() -{ - delete this; -} - -void QmlAbstractBinding::addToObject(QObject *object) -{ - Q_ASSERT(object); - - removeFromObject(); - - Q_ASSERT(!m_prevBinding); - - QmlDeclarativeData *data = QmlDeclarativeData::get(object, true); - m_nextBinding = data->bindings; - if (m_nextBinding) m_nextBinding->m_prevBinding = &m_nextBinding; - m_prevBinding = &data->bindings; - data->bindings = this; - m_object = object; - - data->setBindingBit(m_object, propertyIndex()); -} - -void QmlAbstractBinding::removeFromObject() -{ - if (m_prevBinding) { - Q_ASSERT(m_object); - - *m_prevBinding = m_nextBinding; - if (m_nextBinding) m_nextBinding->m_prevBinding = m_prevBinding; - m_prevBinding = 0; - m_nextBinding = 0; - - QmlDeclarativeData *data = QmlDeclarativeData::get(m_object, false); - if (data) data->clearBindingBit(propertyIndex()); - m_object = 0; - } -} - -void QmlAbstractBinding::clear() -{ - if (m_mePtr) - *m_mePtr = 0; -} - -QString QmlAbstractBinding::expression() const -{ - return QLatin1String("<Unknown>"); -} - -void QmlAbstractBinding::setEnabled(bool e, QmlMetaProperty::WriteFlags) -{ - if (e) m_mePtr = 0; -} - -QT_END_NAMESPACE |