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Diffstat (limited to 'src/qml/qml/qqmlaccessors_p.h')
| -rw-r--r-- | src/qml/qml/qqmlaccessors_p.h | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/src/qml/qml/qqmlaccessors_p.h b/src/qml/qml/qqmlaccessors_p.h deleted file mode 100644 index 55562a5307..0000000000 --- a/src/qml/qml/qqmlaccessors_p.h +++ /dev/null @@ -1,177 +0,0 @@ -/**************************************************************************** -** -** 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. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QQMLACCESSORS_P_H -#define QQMLACCESSORS_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include <private/qtqmlglobal_p.h> -#include <QtCore/qbytearray.h> -#include <QtCore/qvector.h> -#include <QtCore/qhash.h> -#include <QtCore/QReadWriteLock> - -#if defined(Q_OS_QNX) || defined(Q_OS_LINUX) -#include <stdint.h> -#endif - -QT_BEGIN_NAMESPACE - -class QObject; -struct QMetaObject; -class QQmlNotifier; - -// QML "accessor properties" allow V4 and V8 to bypass Qt's meta system to read and, more -// importantly, subscribe to properties directly. Any property that is primarily read -// from bindings is a candidate for inclusion as an accessor property. -// -// To define accessor properties, use the QML_DECLARE_PROPERTIES() and QML_DEFINE_PROPERTIES() -// macros. The QML_DECLARE_PROPERTIES() macro is used to specify the properties, and the -// QML_DEFINE_PROPERTIES() macro to register the properties with the -// QQmlAccessorProperties singleton. -// -// A class with accessor properties must also add the Q_CLASSINFO("qt_HasQmlAccessors", "true") -// tag to its declaration. This is essential for QML to maintain internal consistency, -// and forgetting to do so will probably cause your application to qFatal() with a -// helpful reminder of this requirement. -// -// It is important that QML_DEFINE_PROPERTIES() has been called before QML ever sees -// the type with the accessor properties. As QML_DEFINE_PROPERTIES() is idempotent, it is -// recommended to call it in the type's constructor as well as when the type is registered -// as a QML element (if it ever is). QML_DEFINE_PROPERTIES() is a very cheap operation -// if registration has already occurred. - -#define QML_DECLARE_PROPERTIES(type) \ - static volatile bool qqml_accessor_properties_isregistered_ ## type = false; \ - static QQmlAccessorProperties::Property qqml_accessor_properties_ ## type[] = - -#define QML_DEFINE_PROPERTIES(type) \ - do { \ - if (!qqml_accessor_properties_isregistered_ ## type) { \ - int count = sizeof(qqml_accessor_properties_ ## type) / \ - sizeof(QQmlAccessorProperties::Property); \ - QQmlAccessorProperties::registerProperties(&type::staticMetaObject, count, \ - qqml_accessor_properties_ ## type);\ - qqml_accessor_properties_isregistered_ ## type = true; \ - } \ - } while (false); - -#define QML_PRIVATE_ACCESSOR(clazz, cpptype, name, variable) \ - static void clazz ## _ ## name ## Read(QObject *o, void *rv) \ - { \ - clazz ## Private *d = clazz ## Private::get(static_cast<clazz *>(o)); \ - *static_cast<cpptype *>(rv) = d->variable; \ - } - -#define QML_PROPERTY_NAME(name) #name, sizeof #name - 1 - -class QQmlAccessors -{ -public: - void (*read)(QObject *object, void *output); - void (*notifier)(QObject *object, QQmlNotifier **notifier); -}; - -namespace QQmlAccessorProperties { - struct Property { - const char *name; - unsigned int nameLength; - qintptr data; - QQmlAccessors *accessors; - }; - - struct Properties { - inline Properties(); - Properties(Property *, int); - - bool operator==(const Properties &o) const { - return count == o.count && properties == o.properties; - } - - inline Property *property(const char *name); - - int count; - Property *properties; - quint32 nameMask; - }; - - Properties properties(const QMetaObject *); - void Q_QML_PRIVATE_EXPORT registerProperties(const QMetaObject *, int, Property *); -}; - -QQmlAccessorProperties::Property * -QQmlAccessorProperties::Properties::property(const char *name) -{ - if (count == 0) - return 0; - - const unsigned int length = (unsigned int)strlen(name); - - Q_ASSERT(length); - - if (nameMask & (1 << qMin(31U, length - 1))) { - - for (int ii = 0; ii < count; ++ii) { - if (properties[ii].nameLength == length && 0 == qstrcmp(name, properties[ii].name)) - return &properties[ii]; - } - - } - - return 0; -} - -QQmlAccessorProperties::Properties::Properties() -: count(0), properties(0), nameMask(0) -{ -} - -QT_END_NAMESPACE - -#endif // QQMLACCESSORS_P_H |