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Diffstat (limited to 'src/quickcontrols2/qquickattachedobject_p.h')
-rw-r--r-- | src/quickcontrols2/qquickattachedobject_p.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/quickcontrols2/qquickattachedobject_p.h b/src/quickcontrols2/qquickattachedobject_p.h new file mode 100644 index 00000000..5d4194ef --- /dev/null +++ b/src/quickcontrols2/qquickattachedobject_p.h @@ -0,0 +1,95 @@ +/**************************************************************************** +** +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** 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 http://www.qt.io/terms-conditions. For further +** information use the contact form at http://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.LGPLv3 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.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 later 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 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QQUICKATTACHEDOBJECT_P_H +#define QQUICKATTACHEDOBJECT_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 <QtQml/qqml.h> +#include <QtCore/qlist.h> +#include <QtCore/qobject.h> +#include <QtCore/qpointer.h> +#include <QtQuick/private/qquickitemchangelistener_p.h> +#include <QtQuickControls2/private/qtquickcontrols2global_p.h> + +QT_BEGIN_NAMESPACE + +class QQuickWindow; + +class Q_QUICKCONTROLS2_PRIVATE_EXPORT QQuickAttachedObject : public QObject, public QQuickItemChangeListener +{ + Q_OBJECT + +public: + explicit QQuickAttachedObject(QObject *parent = nullptr); + ~QQuickAttachedObject(); + + QList<QQuickAttachedObject *> attachedChildren() const; + + QQuickAttachedObject *attachedParent() const; + void setAttachedParent(QQuickAttachedObject *parent); + +protected: + QQuickAttachedObject(QObjectPrivate &dd, QObject *parent = nullptr); + + void init(); + + virtual void attachedParentChange(QQuickAttachedObject *newParent, QQuickAttachedObject *oldParent); + + void itemWindowChanged(QQuickWindow *window); + void itemParentChanged(QQuickItem *item, QQuickItem *parent) override; + +private: + void attachTo(QObject *object); + void detachFrom(QObject *object); + + QList<QQuickAttachedObject *> m_attachedChildren; + QPointer<QQuickAttachedObject> m_attachedParent; +}; + +QT_END_NAMESPACE + +#endif // QQUICKATTACHEDOBJECT_P_H |