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     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

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     6 **

     7 ** This file is part of the QtCore module of the Qt Toolkit.

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    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

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    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

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    38 ** $QT_END_LICENSE$

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    40 ****************************************************************************/

    41 

    42 #ifndef QSTATE_H

    43 #define QSTATE_H

    44 

    45 #include <QtCore/qabstractstate.h>

    46 

    47 QT_BEGIN_HEADER

    48 

    49 QT_BEGIN_NAMESPACE

    50 

    51 QT_MODULE(Core)

    52 

    53 #ifndef QT_NO_STATEMACHINE

    54 

    55 class QAbstractTransition;

    56 class QSignalTransition;

    57 

    58 class QStatePrivate;

    59 class Q_CORE_EXPORT QState : public QAbstractState

    60 {

    61     Q_OBJECT

    62     Q_PROPERTY(QAbstractState* initialState READ initialState WRITE setInitialState)

    63     Q_PROPERTY(QAbstractState* errorState READ errorState WRITE setErrorState)

    64     Q_PROPERTY(ChildMode childMode READ childMode WRITE setChildMode)

    65     Q_ENUMS(ChildMode)

    66 public:

    67     enum ChildMode {

    68         ExclusiveStates,

    69         ParallelStates

    70     };

    71 

    72     QState(QState *parent = 0);

    73     QState(ChildMode childMode, QState *parent = 0);

    74     ~QState();

    75 

    76     QAbstractState *errorState() const;

    77     void setErrorState(QAbstractState *state);

    78 

    79     QAbstractTransition *addTransition(QAbstractTransition *transition);

    80     QSignalTransition *addTransition(QObject *sender, const char *signal, QAbstractState *target);

    81     QAbstractTransition *addTransition(QAbstractState *target);

    82     void removeTransition(QAbstractTransition *transition);

    83 

    84     QAbstractState *initialState() const;

    85     void setInitialState(QAbstractState *state);

    86 

    87     ChildMode childMode() const;

    88     void setChildMode(ChildMode mode);

    89 

    90 #ifndef QT_NO_PROPERTIES

    91     void assignProperty(QObject *object, const char *name,

    92                         const QVariant &value);

    93 #endif

    94 

    95 Q_SIGNALS:

    96     void finished();

    97     void polished();

    98 

    99 protected:

   100     void onEntry(QEvent *event);

   101     void onExit(QEvent *event);

   102 

   103     bool event(QEvent *e);

   104 

   105 protected:

   106     QState(QStatePrivate &dd, QState *parent);

   107 

   108 private:

   109     Q_DISABLE_COPY(QState)

   110     Q_DECLARE_PRIVATE(QState)

   111 };

   112 

   113 #endif //QT_NO_STATEMACHINE

   114 

   115 QT_END_NAMESPACE

   116 

   117 QT_END_HEADER

   118 

   119 #endif