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// 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 QSTATE_P_H
#define QSTATE_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 "qstate.h"
#include "private/qabstractstate_p.h"
#include <QtCore/qlist.h>
#include <QtCore/qbytearray.h>
#include <QtCore/qpointer.h>
#include <QtCore/qvariant.h>
#include <QtCore/private/qproperty_p.h>
QT_REQUIRE_CONFIG(statemachine);
QT_BEGIN_NAMESPACE
#ifndef QT_NO_PROPERTIES
struct QPropertyAssignment
{
QPropertyAssignment()
: object(nullptr), explicitlySet(true) {}
QPropertyAssignment(QObject *o, const QByteArray &n,
const QVariant &v, bool es = true)
: object(o), propertyName(n), value(v), explicitlySet(es)
{}
bool objectDeleted() const { return !object; }
void write() const { Q_ASSERT(object != nullptr); object->setProperty(propertyName, value); }
bool hasTarget(QObject *o, const QByteArray &pn) const
{ return object == o && propertyName == pn; }
QPointer<QObject> object;
QByteArray propertyName;
QVariant value;
bool explicitlySet; // false means the property is being restored to its old value
};
Q_DECLARE_TYPEINFO(QPropertyAssignment, Q_RELOCATABLE_TYPE);
#endif // QT_NO_PROPERTIES
class QAbstractTransition;
class QHistoryState;
class QState;
class Q_STATEMACHINE_EXPORT QStatePrivate : public QAbstractStatePrivate
{
Q_DECLARE_PUBLIC(QState)
public:
QStatePrivate();
~QStatePrivate();
static QStatePrivate *get(QState *q) { return q ? q->d_func() : nullptr; }
static const QStatePrivate *get(const QState *q) { return q? q->d_func() : nullptr; }
QList<QAbstractState*> childStates() const;
QList<QHistoryState*> historyStates() const;
QList<QAbstractTransition*> transitions() const;
void emitFinished();
void emitPropertiesAssigned();
void initialStateChanged()
{
emit q_func()->initialStateChanged(QState::QPrivateSignal());
}
Q_OBJECT_BINDABLE_PROPERTY_WITH_ARGS(QStatePrivate, QAbstractState*, initialState,
nullptr, &QStatePrivate::initialStateChanged);
void errorStateChanged()
{
emit q_func()->errorStateChanged(QState::QPrivateSignal());
}
Q_OBJECT_BINDABLE_PROPERTY_WITH_ARGS(QStatePrivate, QAbstractState*, errorState,
nullptr, &QStatePrivate::errorStateChanged);
void childModeChanged()
{
emit q_func()->childModeChanged(QState::QPrivateSignal());
}
Q_OBJECT_BINDABLE_PROPERTY_WITH_ARGS(QStatePrivate, QState::ChildMode, childMode,
QState::ExclusiveStates, &QStatePrivate::childModeChanged);
mutable bool childStatesListNeedsRefresh;
mutable bool transitionsListNeedsRefresh;
mutable QList<QAbstractState*> childStatesList;
mutable QList<QAbstractTransition*> transitionsList;
#ifndef QT_NO_PROPERTIES
QList<QPropertyAssignment> propertyAssignments;
#endif
};
QT_END_NAMESPACE
#endif
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