diff options
Diffstat (limited to 'src/qml/qml/qqmlabstractbinding_p.h')
| -rw-r--r-- | src/qml/qml/qqmlabstractbinding_p.h | 120 |
1 files changed, 70 insertions, 50 deletions
diff --git a/src/qml/qml/qqmlabstractbinding_p.h b/src/qml/qml/qqmlabstractbinding_p.h index fc53be3e7b..8230c6aa6b 100644 --- a/src/qml/qml/qqmlabstractbinding_p.h +++ b/src/qml/qml/qqmlabstractbinding_p.h @@ -1,41 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtQml module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only #ifndef QQMLABSTRACTBINDING_P_H #define QQMLABSTRACTBINDING_P_H @@ -59,19 +23,27 @@ QT_BEGIN_NAMESPACE class QQmlObjectCreator; +class QQmlAnyBinding; -class Q_QML_PRIVATE_EXPORT QQmlAbstractBinding +class Q_QML_EXPORT QQmlAbstractBinding { + friend class QQmlAnyBinding; protected: QQmlAbstractBinding(); public: + enum Kind { + ValueTypeProxy, + QmlBinding, + PropertyToPropertyBinding, + }; + virtual ~QQmlAbstractBinding(); typedef QExplicitlySharedDataPointer<QQmlAbstractBinding> Ptr; virtual QString expression() const; - virtual bool isValueTypeProxy() const; + virtual Kind kind() const = 0; // Should return the encoded property index for the binding. Should return this value // even if the binding is not enabled or added to an object. @@ -82,17 +54,23 @@ public: // binding is not enabled or added to the object. QObject *targetObject() const { return m_target.data(); } + void setTarget(const QQmlProperty &); + bool setTarget(QObject *, const QQmlPropertyData &, const QQmlPropertyData *valueType); + bool setTarget(QObject *, int coreIndex, bool coreIsAlias, int valueTypeIndex); + virtual void setEnabled(bool e, QQmlPropertyData::WriteFlags f = QQmlPropertyData::DontRemoveBinding) = 0; void addToObject(); void removeFromObject(); - static void printBindingLoopError(QQmlProperty &prop); + static void printBindingLoopError(const QQmlProperty &prop); inline QQmlAbstractBinding *nextBinding() const; inline bool canUseAccessor() const - { return m_nextBinding.flag2(); } + { return m_nextBinding.tag().testFlag(CanUseAccessor); } + void setCanUseAccessor(bool canUseAccessor) + { m_nextBinding.setTag(m_nextBinding.tag().setFlag(CanUseAccessor, canUseAccessor)); } struct RefCount { RefCount() {} @@ -103,6 +81,20 @@ public: }; RefCount ref; + enum TargetTag { + NoTargetTag = 0x0, + UpdatingBinding = 0x1, + BindingEnabled = 0x2 + }; + Q_DECLARE_FLAGS(TargetTags, TargetTag) + + enum NextBindingTag { + NoBindingTag = 0x0, + AddedToObject = 0x1, + CanUseAccessor = 0x2 + }; + Q_DECLARE_FLAGS(NextBindingTags, NextBindingTag) + protected: friend class QQmlData; friend class QQmlValueTypeProxyBinding; @@ -113,27 +105,35 @@ protected: inline void setNextBinding(QQmlAbstractBinding *); + void getPropertyData( + const QQmlPropertyData **propertyData, QQmlPropertyData *valueTypeData) const; + + inline bool updatingFlag() const; + inline void setUpdatingFlag(bool); + inline bool enabledFlag() const; + inline void setEnabledFlag(bool); + void updateCanUseAccessor(); + QQmlPropertyIndex m_targetIndex; // Pointer is the target object to which the binding binds - // flag1 is the updating flag - // flag2 is the enabled flag - QFlagPointer<QObject> m_target; + QTaggedPointer<QObject, TargetTags> m_target; // Pointer to the next binding in the linked list of bindings. - // flag1 is used for addedToObject - // flag2 indicates if an accessor is can be used (i.e. there is no interceptor on the target) - QFlagPointer<QQmlAbstractBinding> m_nextBinding; + QTaggedPointer<QQmlAbstractBinding, NextBindingTags> m_nextBinding; }; +Q_DECLARE_OPERATORS_FOR_FLAGS(QQmlAbstractBinding::TargetTags) +Q_DECLARE_OPERATORS_FOR_FLAGS(QQmlAbstractBinding::NextBindingTags) + void QQmlAbstractBinding::setAddedToObject(bool v) { - m_nextBinding.setFlagValue(v); + m_nextBinding.setTag(m_nextBinding.tag().setFlag(AddedToObject, v)); } bool QQmlAbstractBinding::isAddedToObject() const { - return m_nextBinding.flag(); + return m_nextBinding.tag().testFlag(AddedToObject); } QQmlAbstractBinding *QQmlAbstractBinding::nextBinding() const @@ -150,6 +150,26 @@ void QQmlAbstractBinding::setNextBinding(QQmlAbstractBinding *b) m_nextBinding = b; } +bool QQmlAbstractBinding::updatingFlag() const +{ + return m_target.tag().testFlag(UpdatingBinding); +} + +void QQmlAbstractBinding::setUpdatingFlag(bool v) +{ + m_target.setTag(m_target.tag().setFlag(UpdatingBinding, v)); +} + +bool QQmlAbstractBinding::enabledFlag() const +{ + return m_target.tag().testFlag(BindingEnabled); +} + +void QQmlAbstractBinding::setEnabledFlag(bool v) +{ + m_target.setTag(m_target.tag().setFlag(BindingEnabled, v)); +} + QT_END_NAMESPACE #endif // QQMLABSTRACTBINDING_P_H |