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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 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 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qstateaction.h"
+#include "qstateaction_p.h"
+#include <QtCore/qvarlengtharray.h>
+#include <QtCore/qmetaobject.h>
+
+QT_BEGIN_NAMESPACE
+
+QStateActionPrivate::QStateActionPrivate()
+{
+ when = ExecuteOnEntry;
+}
+
+QStateActionPrivate::~QStateActionPrivate()
+{
+}
+
+QStateActionPrivate *QStateActionPrivate::get(QStateAction *q)
+{
+ return q->d_func();
+}
+
+void QStateActionPrivate::callExecute()
+{
+ Q_Q(QStateAction);
+ q->execute();
+}
+
+/*!
+ \class QStateAction
+
+ \brief The QStateAction class is the base class of QState actions.
+
+ \ingroup statemachine
+
+ A state action is added to a state by calling QState::addEntryAction() or
+ QState::addExitAction(). QStateAction is part of \l{The State Machine
+ Framework}.
+
+ \section1 Subclassing
+
+ Subclasses must implement the execute() function.
+*/
+
+/*!
+ Constructs a new QStateAction object with the given \a parent.
+*/
+QStateAction::QStateAction(QObject *parent)
+ : QObject(
+#ifndef QT_STATEMACHINE_SOLUTION
+ *new QStateActionPrivate,
+#endif
+ parent)
+#ifdef QT_STATEMACHINE_SOLUTION
+ , d_ptr(new QStateActionPrivate)
+#endif
+{
+#ifdef QT_STATEMACHINE_SOLUTION
+ d_ptr->q_ptr = this;
+#endif
+}
+
+/*!
+ \internal
+*/
+QStateAction::QStateAction(QStateActionPrivate &dd, QObject *parent)
+ : QObject(
+#ifndef QT_STATEMACHINE_SOLUTION
+ dd,
+#endif
+ parent)
+#ifdef QT_STATEMACHINE_SOLUTION
+ , d_ptr(&dd)
+#endif
+{
+#ifdef QT_STATEMACHINE_SOLUTION
+ d_ptr->q_ptr = this;
+#endif
+}
+
+/*!
+ Destroys this QStateAction object.
+*/
+QStateAction::~QStateAction()
+{
+#ifdef QT_STATEMACHINE_SOLUTION
+ delete d_ptr;
+#endif
+}
+
+/*!
+ \fn QStateAction::execute()
+
+ Executes this action.
+*/
+
+/*!
+ \reimp
+*/
+bool QStateAction::event(QEvent *e)
+{
+ return QObject::event(e);
+}
+
+QStateInvokeMethodActionPrivate *QStateInvokeMethodActionPrivate::get(QStateInvokeMethodAction *q)
+{
+ return q->d_func();
+}
+
+/*!
+ \class QStateInvokeMethodAction
+
+ \brief The QStateInvokeMethodAction class provides an invoke method action for QObjects.
+
+ \ingroup statemachine
+
+ The QStateInvokeMethodAction class provides an action that calls a method of
+ a QObject when a QState is entered or exited. QStateInvokeMethodAction is
+ part of \l{The State Machine Framework}.
+
+ Typically you don't construct QStateInvokeMethodAction objects directly, but
+ rather call the QState::invokeMethodOnEntry() function or the
+ QState::invokeMethodOnExit() function.
+*/
+
+/*!
+ \property QStateInvokeMethodAction::arguments
+
+ \brief the arguments to the method this action invokes
+*/
+
+/*!
+ \property QStateInvokeMethodAction::methodName
+
+ \brief the name of the method this action invokes
+*/
+
+/*!
+ \property QStateInvokeMethodAction::target
+
+ \brief the object on which this action invokes a method
+*/
+
+/*!
+ Constructs a new QStateInvokeMethodAction object for the method named \a
+ methodName of the given \a target object, with the given \a parent.
+*/
+QStateInvokeMethodAction::QStateInvokeMethodAction(
+ QObject *target, const QByteArray &methodName, QObject *parent)
+ : QStateAction(*new QStateInvokeMethodActionPrivate, parent)
+{
+ Q_D(QStateInvokeMethodAction);
+ d->target = target;
+ d->methodName = methodName;
+ d->methodIndex = -1;
+}
+
+/*!
+ Constructs a new QStateInvokeMethodAction object for the method named \a
+ methodName of the given \a target object, with the given arguments, \a args,
+ and with the given \a parent.
+*/
+QStateInvokeMethodAction::QStateInvokeMethodAction(
+ QObject *target, const QByteArray &methodName,
+ const QList<QVariant> &args, QObject *parent)
+ : QStateAction(*new QStateInvokeMethodActionPrivate, parent)
+{
+ Q_D(QStateInvokeMethodAction);
+ d->target = target;
+ d->methodName = methodName;
+ d->methodIndex = -1;
+ d->args = args;
+}
+
+/*!
+ Constructs a new QStateInvokeMethodAction object with the given \a parent.
+*/
+QStateInvokeMethodAction::QStateInvokeMethodAction(QObject *parent)
+ : QStateAction(*new QStateInvokeMethodActionPrivate, parent)
+{
+ Q_D(QStateInvokeMethodAction);
+ d->target = 0;
+ d->methodIndex = -1;
+}
+
+/*!
+ Destroys this QStateInvokeMethodAction object.
+*/
+QStateInvokeMethodAction::~QStateInvokeMethodAction()
+{
+}
+
+/*!
+ \reimp
+*/
+void QStateInvokeMethodAction::execute()
+{
+ Q_D(QStateInvokeMethodAction);
+ if (!d->target)
+ return;
+
+ if (d->methodIndex == -1) {
+ QVarLengthArray<char, 512> sig;
+ int len = d->methodName.length();
+ if (len <= 0)
+ return;
+ sig.append(d->methodName, len);
+ sig.append('(');
+
+ int paramCount;
+ for (paramCount = 0; paramCount < d->args.size() && paramCount < 10; ++paramCount) {
+ const char *tn = d->args.at(paramCount).typeName();
+ len = qstrlen(tn);
+ if (len <= 0)
+ break;
+ sig.append(tn, len);
+ sig.append(',');
+ }
+ if (paramCount == 0)
+ sig.append(')'); // no parameters
+ else
+ sig[sig.size() - 1] = ')';
+ sig.append('\0');
+
+ const QMetaObject *meta = d->target->metaObject();
+ int idx = meta->indexOfMethod(sig.constData());
+ if (idx < 0) {
+ QByteArray norm = QMetaObject::normalizedSignature(sig.constData());
+ idx = meta->indexOfMethod(norm.constData());
+ if ((idx < 0) || (idx >= meta->methodCount())) {
+ qWarning("InvokeMethodAction: unable to find method '%s' of %s(%p)",
+ sig.constData(), meta->className(), d->target);
+ return;
+ }
+ }
+ d->methodIndex = idx;
+ }
+
+ void *param[11];
+ param[0] = 0; // return value
+ for (int i = 0; i < 10; ++i)
+ param[i+1] = (i < d->args.size()) ? const_cast<void*>(d->args.at(i).constData()) : (void*)0;
+ (void)d->target->qt_metacall(QMetaObject::InvokeMetaMethod, d->methodIndex, param);
+}
+
+/*!
+ Returns the object on which this action invokes a method.
+*/
+QObject *QStateInvokeMethodAction::targetObject() const
+{
+ Q_D(const QStateInvokeMethodAction);
+ return d->target;
+}
+
+/*!
+ Sets the object on which this action invokes a method.
+*/
+void QStateInvokeMethodAction::setTargetObject(QObject *target)
+{
+ Q_D(QStateInvokeMethodAction);
+ d->target = target;
+}
+
+/*!
+ Returns the name of the method this action will invoke.
+*/
+QByteArray QStateInvokeMethodAction::methodName() const
+{
+ Q_D(const QStateInvokeMethodAction);
+ return d->methodName;
+}
+
+/*!
+ Sets the name of the method this action will invoke.
+*/
+void QStateInvokeMethodAction::setMethodName(const QByteArray &methodName)
+{
+ Q_D(QStateInvokeMethodAction);
+ if (methodName != d->methodName) {
+ d->methodName = methodName;
+ d->methodIndex = -1;
+ }
+}
+
+/*!
+ Returns the arguments to the method this action will invoke.
+*/
+QVariantList QStateInvokeMethodAction::arguments() const
+{
+ Q_D(const QStateInvokeMethodAction);
+ return d->args;
+}
+
+/*!
+ Sets the arguments to the method this action will invoke.
+*/
+void QStateInvokeMethodAction::setArguments(const QVariantList &arguments)
+{
+ Q_D(QStateInvokeMethodAction);
+ if (d->args != arguments) {
+ d->args = arguments;
+ d->methodIndex = -1;
+ }
+}
+
+/*!
+ \reimp
+*/
+bool QStateInvokeMethodAction::event(QEvent *e)
+{
+ return QStateAction::event(e);
+}
+
+QT_END_NAMESPACE