Move the statemachine documentation into qtcore

Moved the documentation from qtdoc to here, so the
statemachine class docs can link to it.

Change-Id: I49a10cc7c418d415c64ea538376eb9bd7b031c27
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Casper van Donderen <casper.vandonderen@nokia.com>

6 files changed, 593 insertions, 0 deletions

diff --git a/src/corelib/doc/snippets/statemachine/eventtest.cpp b/src/corelib/doc/snippets/statemachine/eventtest.cpp
new file mode 100644
index 0000000000..26987b6cdc
--- /dev/null
+++ b/src/corelib/doc/snippets/statemachine/eventtest.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+class MyTransition : public QAbstractTransition
+{
+    Q_OBJECT
+public:
+    MyTransition() {}
+
+protected:
+//![0]
+    bool eventTest(QEvent *event)
+    {
+        if (event->type() == QEvent::Wrapped) {
+            QEvent *wrappedEvent = static_cast<QStateMachine::WrappedEvent *>(event)->event();
+            if (wrappedEvent->type() == QEvent::KeyPress) {
+                QKeyEvent *keyEvent = static_cast<QKeyEvent *>(wrappedEvent);
+                // Do your event test
+            }       
+        }
+        return false;
+    }
+//![0]      
+
+    void onTransition(QEvent *event)
+    {
+
+    }
+};
+
+int main(int argv, char **args)
+{
+    return 0;
+}
diff --git a/src/corelib/doc/snippets/statemachine/main.cpp b/src/corelib/doc/snippets/statemachine/main.cpp
new file mode 100644
index 0000000000..ee0cfd6700
--- /dev/null
+++ b/src/corelib/doc/snippets/statemachine/main.cpp
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+int main(int argv, char **args)
+{
+    QApplication app(argv, args);
+
+    QLabel *label = new QLabel;
+
+//![0]
+    QStateMachine machine;
+    QState *s1 = new QState();
+    QState *s2 = new QState();
+    QState *s3 = new QState();
+//![0]
+
+//![4]
+    s1->assignProperty(label, "text", "In state s1");
+    s2->assignProperty(label, "text", "In state s2");
+    s3->assignProperty(label, "text", "In state s3");
+//![4]
+
+//![5]
+    QObject::connect(s3, SIGNAL(entered()), button, SLOT(showMaximized()));
+    QObject::connect(s3, SIGNAL(exited()), button, SLOT(showMinimized()));
+//![5]
+
+//![1]
+    s1->addTransition(button, SIGNAL(clicked()), s2);
+    s2->addTransition(button, SIGNAL(clicked()), s3);
+    s3->addTransition(button, SIGNAL(clicked()), s1);
+//![1]
+
+//![2]
+    machine.addState(s1);
+    machine.addState(s2);
+    machine.addState(s3);
+    machine.setInitialState(s1);
+//![2]
+
+//![3]
+    machine.start();
+//![3]
+
+    label->show();
+
+    return app.exec();
+}
diff --git a/src/corelib/doc/snippets/statemachine/main2.cpp b/src/corelib/doc/snippets/statemachine/main2.cpp
new file mode 100644
index 0000000000..931a29676e
--- /dev/null
+++ b/src/corelib/doc/snippets/statemachine/main2.cpp
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+int main(int argv, char **args)
+{
+  QApplication app(argv, args);
+
+    QStateMachine machine;
+
+//![0]
+    QState *s1 = new QState();
+    QState *s11 = new QState(s1);
+    QState *s12 = new QState(s1);
+    QState *s13 = new QState(s1);
+    s1->setInitialState(s11);
+    machine.addState(s1);
+//![0]
+
+//![2]
+    s12->addTransition(quitButton, SIGNAL(clicked()), s12);
+//![2]
+
+//![1]
+    QFinalState *s2 = new QFinalState();
+    s1->addTransition(quitButton, SIGNAL(clicked()), s2);
+    machine.addState(s2);
+
+    QObject::connect(&machine, SIGNAL(finished()), QApplication::instance(), SLOT(quit()));
+//![1]
+
+  QButton *interruptButton = new QPushButton("Interrupt Button");
+  QWidget *mainWindow = new QWidget();
+
+//![3]
+    QHistoryState *s1h = new QHistoryState(s1);
+
+    QState *s3 = new QState();
+    s3->assignProperty(label, "text", "In s3");
+    QMessageBox *mbox = new QMessageBox(mainWindow);
+    mbox->addButton(QMessageBox::Ok);
+    mbox->setText("Interrupted!");
+    mbox->setIcon(QMessageBox::Information);
+    QObject::connect(s3, SIGNAL(entered()), mbox, SLOT(exec()));
+    s3->addTransition(s1h);
+    machine.addState(s3);
+
+    s1->addTransition(interruptButton, SIGNAL(clicked()), s3);
+//![3]
+
+  return app.exec();
+}
+
diff --git a/src/corelib/doc/snippets/statemachine/main3.cpp b/src/corelib/doc/snippets/statemachine/main3.cpp
new file mode 100644
index 0000000000..446db541e8
--- /dev/null
+++ b/src/corelib/doc/snippets/statemachine/main3.cpp
@@ -0,0 +1,60 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+int main(int argv, char **args)
+{
+    QApplication app(argv, args);
+
+//![0]
+    QState *s1 = new QState(QState::ParallelStates);
+    // s11 and s12 will be entered in parallel
+    QState *s11 = new QState(s1);
+    QState *s12 = new QState(s1);
+//![0]
+
+//![1]
+  s1->addTransition(s1, SIGNAL(finished()), s2);
+//![1]
+
+    return app.exec();
+}
+
diff --git a/src/corelib/doc/snippets/statemachine/main4.cpp b/src/corelib/doc/snippets/statemachine/main4.cpp
new file mode 100644
index 0000000000..8c9a8aca0e
--- /dev/null
+++ b/src/corelib/doc/snippets/statemachine/main4.cpp
@@ -0,0 +1,110 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+
+//![0]
+struct StringEvent : public QEvent
+{
+    StringEvent(const QString &val)
+    : QEvent(QEvent::Type(QEvent::User+1)),
+      value(val) {}
+
+    QString value;
+};
+//![0]
+
+//![1]
+class StringTransition : public QAbstractTransition
+{
+public:
+    StringTransition(const QString &value)
+        : m_value(value) {}
+
+protected:
+    virtual bool eventTest(QEvent *e) const
+    {
+        if (e->type() != QEvent::Type(QEvent::User+1)) // StringEvent
+            return false;
+        StringEvent *se = static_cast<StringEvent*>(e);
+        return (m_value == se->value);
+    }
+    
+    virtual void onTransition(QEvent *) {}
+
+private:
+    QString m_value;
+};
+//![1]
+
+int main(int argv, char **args)
+{
+    QApplication app(argv, args);
+
+//![2]
+    QStateMachine machine;
+    QState *s1 = new QState();
+    QState *s2 = new QState();
+    QFinalState *done = new QFinalState();
+
+    StringTransition *t1 = new StringTransition("Hello");
+    t1->setTargetState(s2);
+    s1->addTransition(t1);
+    StringTransition *t2 = new StringTransition("world");
+    t2->setTargetState(done);
+    s2->addTransition(t2);
+
+    machine.addState(s1);
+    machine.addState(s2);
+    machine.addState(done);
+    machine.setInitialState(s1);
+//![2]
+
+//![3]
+    machine.postEvent(new StringEvent("Hello"));
+    machine.postEvent(new StringEvent("world"));
+//![3]
+
+    return app.exec();
+}
+
+#include "main4.moc"
+
diff --git a/src/corelib/doc/snippets/statemachine/main5.cpp b/src/corelib/doc/snippets/statemachine/main5.cpp
new file mode 100644
index 0000000000..b801ad8982
--- /dev/null
+++ b/src/corelib/doc/snippets/statemachine/main5.cpp
@@ -0,0 +1,172 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+int main(int argv, char **args)
+{
+    QApplication app(argv, args);
+    QWidget *button;
+
+  {
+//![0]
+    QStateMachine machine;
+    machine.setGlobalRestorePolicy(QStateMachine::RestoreProperties);
+
+    QState *s1 = new QState();
+    s1->assignProperty(object, "fooBar", 1.0);
+    machine.addState(s1);
+    machine.setInitialState(s1);
+
+    QState *s2 = new QState();
+    machine.addState(s2);
+//![0]
+  }
+
+  {
+
+//![2]
+    QStateMachine machine;
+    machine.setGlobalRestorePolicy(QStateMachine::RestoreProperties);
+
+    QState *s1 = new QState();
+    s1->assignProperty(object, "fooBar", 1.0);
+    machine.addState(s1);
+    machine.setInitialState(s1);
+
+    QState *s2 = new QState(s1);
+    s2->assignProperty(object, "fooBar", 2.0);
+    s1->setInitialState(s2);
+
+    QState *s3 = new QState(s1);
+//![2]
+
+  }
+
+  {
+//![3]
+    QState *s1 = new QState();
+    QState *s2 = new QState();
+
+    s1->assignProperty(button, "geometry", QRectF(0, 0, 50, 50));
+    s2->assignProperty(button, "geometry", QRectF(0, 0, 100, 100));
+
+    s1->addTransition(button, SIGNAL(clicked()), s2);
+//![3]
+
+  }
+
+  {
+//![4]
+    QState *s1 = new QState();
+    QState *s2 = new QState();
+
+    s1->assignProperty(button, "geometry", QRectF(0, 0, 50, 50));
+    s2->assignProperty(button, "geometry", QRectF(0, 0, 100, 100));
+
+    QSignalTransition *transition = s1->addTransition(button, SIGNAL(clicked()), s2);
+    transition->addAnimation(new QPropertyAnimation(button, "geometry"));
+//![4]
+
+  }
+
+  {
+    QMainWindow *mainWindow = 0;
+
+//![5]
+    QMessageBox *messageBox = new QMessageBox(mainWindow);
+    messageBox->addButton(QMessageBox::Ok);
+    messageBox->setText("Button geometry has been set!");
+    messageBox->setIcon(QMessageBox::Information);
+
+    QState *s1 = new QState();
+
+    QState *s2 = new QState();
+    s2->assignProperty(button, "geometry", QRectF(0, 0, 50, 50));
+    connect(s2, SIGNAL(entered()), messageBox, SLOT(exec()));
+
+    s1->addTransition(button, SIGNAL(clicked()), s2);
+//![5]
+  }
+
+  {
+    QMainWindow *mainWindow = 0;
+
+//![6]
+    QMessageBox *messageBox = new QMessageBox(mainWindow);
+    messageBox->addButton(QMessageBox::Ok);
+    messageBox->setText("Button geometry has been set!");
+    messageBox->setIcon(QMessageBox::Information);
+
+    QState *s1 = new QState();
+
+    QState *s2 = new QState();
+    s2->assignProperty(button, "geometry", QRectF(0, 0, 50, 50));
+
+    QState *s3 = new QState();
+    connect(s3, SIGNAL(entered()), messageBox, SLOT(exec()));
+
+    s1->addTransition(button, SIGNAL(clicked()), s2);
+    s2->addTransition(s2, SIGNAL(propertiesAssigned()), s3);
+//![6]
+
+  }
+
+  {
+
+//![7]
+    QState *s1 = new QState();
+    QState *s2 = new QState();
+
+    s2->assignProperty(object, "fooBar", 2.0);
+    s1->addTransition(s2);
+
+    QStateMachine machine;
+    machine.setInitialState(s1);
+    machine.addDefaultAnimation(new QPropertyAnimation(object, "fooBar"));
+//![7]
+
+  }
+
+
+
+    return app.exec();
+}
+