QDeclarativeStateGroupPrivate Class Reference

Inheritance diagram for QDeclarativeStateGroupPrivate:

Public Functions
QDeclarativeTransition *	findTransition (const QString &from, const QString &to)
	QDeclarativeStateGroupPrivate ()
void	setCurrentStateInternal (const QString &state, bool=false)
bool	updateAutoState ()
Public Functions inherited from QObjectPrivate
void	_q_reregisterTimers (void *pointer)
void	addConnection (int signal, Connection *c)
void	cleanConnectionLists ()
void	connectNotify (const char *signal)
void	deleteChildren ()
void	disconnectNotify (const char *signal)
bool	isSender (const QObject *receiver, const char *signal) const
bool	isSignalConnected (uint signalIdx) const
	Returns true if the signal with index signal_index from object sender is connected. More...
void	moveToThread_helper ()
	QObjectPrivate (int version=QObjectPrivateVersion)
QObjectList	receiverList (const char *signal) const
QObjectList	senderList () const
void	setParent_helper (QObject *)
void	setThreadData_helper (QThreadData *currentData, QThreadData *targetData)
int	signalIndex (const char *signalName) const
	Returns the signal index used in the internal connectionLists vector. More...
virtual	~QObjectPrivate ()
Public Functions inherited from QObjectData
virtual	~QObjectData ()=0

Static Public Functions
static void	append_state (QDeclarativeListProperty< QDeclarativeState > *list, QDeclarativeState *state)
static void	append_transition (QDeclarativeListProperty< QDeclarativeTransition > *list, QDeclarativeTransition *state)
static QDeclarativeState *	at_state (QDeclarativeListProperty< QDeclarativeState > *list, int index)
static QDeclarativeTransition *	at_transition (QDeclarativeListProperty< QDeclarativeTransition > *list, int index)
static void	clear_states (QDeclarativeListProperty< QDeclarativeState > *list)
static void	clear_transitions (QDeclarativeListProperty< QDeclarativeTransition > *list)
static int	count_state (QDeclarativeListProperty< QDeclarativeState > *list)
static int	count_transitions (QDeclarativeListProperty< QDeclarativeTransition > *list)
Static Public Functions inherited from QObjectPrivate
static void	clearGuards (QObject *)
static QObjectPrivate *	get (QObject *o)
static void	resetCurrentSender (QObject *receiver, Sender *currentSender, Sender *previousSender)
static Sender *	setCurrentSender (QObject *receiver, Sender *sender)
static void	signalSignature (const QMetaMethod &signal, QVarLengthArray< char > *result)

Public Variables
bool	applyingState
bool	componentComplete
QString	currentState
bool	ignoreTrans
QDeclarativeState *	nullState
QList< QDeclarativeState * >	states
QList< QDeclarativeTransition * >	transitions
int	unnamedCount
Public Variables inherited from QObjectPrivate
union {
QObject *   currentChildBeingDeleted
QAbstractDeclarativeData *   declarativeData
};
quint32	connectedSignals [2]
QObjectConnectionListVector *	connectionLists
Sender *	currentSender
QList< QPointer< QObject > >	eventFilters
ExtraData *	extraData
QString	objectName
Connection *	senders
QAtomicPointer< QtSharedPointer::ExternalRefCountData >	sharedRefcount
QThreadData *	threadData
void *	unused
Public Variables inherited from QObjectData
uint	blockSig: 1
QObjectList	children
uint	hasGuards: 1
uint	inEventHandler: 1
uint	inThreadChangeEvent: 1
uint	isWidget: 1
QMetaObject *	metaObject
uint	ownObjectName: 1
QObject *	parent
uint	pendTimer: 1
int	postedEvents
QObject *	q_ptr
uint	receiveChildEvents: 1
uint	sendChildEvents: 1
uint	unused: 22
uint	wasDeleted: 1

Additional Inherited Members
Public Types inherited from QObjectPrivate
typedef void(*	StaticMetaCallFunction) (QObject *, QMetaObject::Call, int, void **)

Detailed Description

Definition at line 60 of file qdeclarativestategroup.cpp.

Constructors and Destructors

QDeclarativeStateGroupPrivate()

QDeclarativeStateGroupPrivate::QDeclarativeStateGroupPrivate ( )

inline

Definition at line 64 of file qdeclarativestategroup.cpp.

    : nullState(0), componentComplete(true),
      ignoreTrans(false), applyingState(false), unnamedCount(0) {}

Functions

append_state()

void QDeclarativeStateGroupPrivate::append_state ( QDeclarativeListProperty< QDeclarativeState > *  list, QDeclarativeState *  state  )

static

Definition at line 177 of file qdeclarativestategroup.cpp.

Referenced by QDeclarativeStateGroup::statesProperty().

{
    QDeclarativeStateGroup *_this = static_cast<QDeclarativeStateGroup *>(list->object);
    if (state) {
        _this->d_func()->states.append(state);
        state->setStateGroup(_this);
    }

}

append_transition()

void QDeclarativeStateGroupPrivate::append_transition ( QDeclarativeListProperty< QDeclarativeTransition > *  list, QDeclarativeTransition *  state  )

static

Definition at line 241 of file qdeclarativestategroup.cpp.

Referenced by QDeclarativeStateGroup::transitionsProperty().

{
    QDeclarativeStateGroup *_this = static_cast<QDeclarativeStateGroup *>(list->object);
    if (trans)
        _this->d_func()->transitions.append(trans);
}

at_state()

QDeclarativeState * QDeclarativeStateGroupPrivate::at_state ( QDeclarativeListProperty< QDeclarativeState > *  list, int  index  )

static

Definition at line 193 of file qdeclarativestategroup.cpp.

Referenced by QDeclarativeStateGroup::statesProperty().

{
    QDeclarativeStateGroup *_this = static_cast<QDeclarativeStateGroup *>(list->object);
    return _this->d_func()->states.at(index);
}

at_transition()

QDeclarativeTransition * QDeclarativeStateGroupPrivate::at_transition ( QDeclarativeListProperty< QDeclarativeTransition > *  list, int  index  )

static

Definition at line 254 of file qdeclarativestategroup.cpp.

Referenced by QDeclarativeStateGroup::transitionsProperty().

{
    QDeclarativeStateGroup *_this = static_cast<QDeclarativeStateGroup *>(list->object);
    return _this->d_func()->transitions.at(index);
}

clear_states()

void QDeclarativeStateGroupPrivate::clear_states ( QDeclarativeListProperty< QDeclarativeState > *  list )

static

Definition at line 199 of file qdeclarativestategroup.cpp.

Referenced by QDeclarativeStateGroup::statesProperty().

{
    QDeclarativeStateGroup *_this = static_cast<QDeclarativeStateGroup *>(list->object);
    _this->d_func()->setCurrentStateInternal(QString(), true);
    for (int i = 0; i < _this->d_func()->states.count(); ++i) {
        _this->d_func()->states.at(i)->setStateGroup(0);
    }
    _this->d_func()->states.clear();
}

clear_transitions()

void QDeclarativeStateGroupPrivate::clear_transitions ( QDeclarativeListProperty< QDeclarativeTransition > *  list )

static

Definition at line 260 of file qdeclarativestategroup.cpp.

Referenced by QDeclarativeStateGroup::transitionsProperty().

{
    QDeclarativeStateGroup *_this = static_cast<QDeclarativeStateGroup *>(list->object);
    _this->d_func()->transitions.clear();
}

count_state()

int QDeclarativeStateGroupPrivate::count_state ( QDeclarativeListProperty< QDeclarativeState > *  list )

static

Definition at line 187 of file qdeclarativestategroup.cpp.

Referenced by QDeclarativeStateGroup::statesProperty().

{
    QDeclarativeStateGroup *_this = static_cast<QDeclarativeStateGroup *>(list->object);
    return _this->d_func()->states.count();
}

count_transitions()

int QDeclarativeStateGroupPrivate::count_transitions ( QDeclarativeListProperty< QDeclarativeTransition > *  list )

static

Definition at line 248 of file qdeclarativestategroup.cpp.

Referenced by QDeclarativeStateGroup::transitionsProperty().

{
    QDeclarativeStateGroup *_this = static_cast<QDeclarativeStateGroup *>(list->object);
    return _this->d_func()->transitions.count();
}

findTransition()

QDeclarativeTransition * QDeclarativeStateGroupPrivate::findTransition	(	const QString &	from,
		const QString &	to
	)

Definition at line 378 of file qdeclarativestategroup.cpp.

{
    QDeclarativeTransition *highest = 0;
    int score = 0;
    bool reversed = false;
    bool done = false;

    for (int ii = 0; !done && ii < transitions.count(); ++ii) {
        QDeclarativeTransition *t = transitions.at(ii);
        for (int ii = 0; ii < 2; ++ii)
        {
            if (ii && (!t->reversible() ||
                      (t->fromState() == QLatin1String("*") && 
                       t->toState() == QLatin1String("*"))))
                break;
            QStringList fromState;
            QStringList toState;

            fromState = t->fromState().split(QLatin1Char(','));
            toState = t->toState().split(QLatin1Char(','));
            if (ii == 1)
                qSwap(fromState, toState);
            int tScore = 0;
            if (fromState.contains(from))
                tScore += 2;
            else if (fromState.contains(QLatin1String("*")))
                tScore += 1;
            else
                continue;

            if (toState.contains(to))
                tScore += 2;
            else if (toState.contains(QLatin1String("*")))
                tScore += 1;
            else
                continue;

            if (ii == 1)
                reversed = true;
            else
                reversed = false;

            if (tScore == 4) {
                highest = t;
                done = true;
                break;
            } else if (tScore > score) {
                score = tScore;
                highest = t;
            }
        }
    }

    if (highest)
        highest->setReversed(reversed);

    return highest;
}

setCurrentStateInternal()

void QDeclarativeStateGroupPrivate::setCurrentStateInternal	(	const QString &	state,
		bool	ignoreTrans = false
	)

Definition at line 437 of file qdeclarativestategroup.cpp.

{
    Q_Q(QDeclarativeStateGroup);
    if (!componentComplete) {
        currentState = state;
        return;
    }

    if (applyingState) {
        qmlInfo(q) << "Can't apply a state change as part of a state definition.";
        return;
    }

    applyingState = true;

    QDeclarativeTransition *transition = (ignoreTrans || ignoreTrans) ? 0 : findTransition(currentState, state);
    if (stateChangeDebug()) {
        qWarning() << this << "Changing state.  From" << currentState << ". To" << state;
        if (transition)
            qWarning() << "   using transition" << transition->fromState() 
                       << transition->toState();
    }

    QDeclarativeState *oldState = 0;
    if (!currentState.isEmpty()) {
        for (int ii = 0; ii < states.count(); ++ii) {
            if (states.at(ii)->name() == currentState) {
                oldState = states.at(ii);
                break;
            }
        }
    }

    currentState = state;
    emit q->stateChanged(currentState);

    QDeclarativeState *newState = 0;
    for (int ii = 0; ii < states.count(); ++ii) {
        if (states.at(ii)->name() == currentState) {
            newState = states.at(ii);
            break;
        }
    }

    if (oldState == 0 || newState == 0) {
        if (!nullState) { nullState = new QDeclarativeState; QDeclarative_setParent_noEvent(nullState, q); }
        if (!oldState) oldState = nullState;
        if (!newState) newState = nullState;
    }

    newState->apply(q, transition, oldState);
    applyingState = false;
    if (!transition)
        static_cast<QDeclarativeStatePrivate*>(QObjectPrivate::get(newState))->complete();
}

updateAutoState()

bool QDeclarativeStateGroupPrivate::updateAutoState

(

)

Definition at line 342 of file qdeclarativestategroup.cpp.

{
    Q_Q(QDeclarativeStateGroup);
    if (!componentComplete)
        return false;

    bool revert = false;
    for (int ii = 0; ii < states.count(); ++ii) {
        QDeclarativeState *state = states.at(ii);
        if (state->isWhenKnown()) {
            if (state->isNamed()) {
                if (state->when() && state->when()->evaluate().toBool()) {
                    if (stateChangeDebug()) 
                        qWarning() << "Setting auto state due to:" 
                                   << state->when()->expression();
                    if (currentState != state->name()) {
                        q->setState(state->name());
                        return true;
                    } else {
                        return false;
                    }
                } else if (state->name() == currentState) {
                    revert = true;
                }
            }
        }
    }
    if (revert) {
        bool rv = !currentState.isEmpty();
        q->setState(QString());
        return rv;
    } else {
        return false;
    }
}

Properties

applyingState

bool QDeclarativeStateGroupPrivate::applyingState

Definition at line 86 of file qdeclarativestategroup.cpp.

componentComplete

bool QDeclarativeStateGroupPrivate::componentComplete

Definition at line 84 of file qdeclarativestategroup.cpp.

currentState

QString QDeclarativeStateGroupPrivate::currentState

Definition at line 68 of file qdeclarativestategroup.cpp.

ignoreTrans

bool QDeclarativeStateGroupPrivate::ignoreTrans

Definition at line 85 of file qdeclarativestategroup.cpp.

nullState

QDeclarativeState* QDeclarativeStateGroupPrivate::nullState

Definition at line 69 of file qdeclarativestategroup.cpp.

states

QList<QDeclarativeState *> QDeclarativeStateGroupPrivate::states

Definition at line 81 of file qdeclarativestategroup.cpp.

transitions

QList<QDeclarativeTransition *> QDeclarativeStateGroupPrivate::transitions

Definition at line 82 of file qdeclarativestategroup.cpp.

unnamedCount

int QDeclarativeStateGroupPrivate::unnamedCount

Definition at line 87 of file qdeclarativestategroup.cpp.

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The documentation for this class was generated from the following file:

• /src/declarative/util/qdeclarativestategroup.cpp