examples/statemachine/eventtransitions/main.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/statemachine/eventtransitions/main.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,111 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+//! [0]
+class Window : public QWidget
+{
+public:
+    Window(QWidget *parent = 0)
+        : QWidget(parent)
+    {
+        QPushButton *button = new QPushButton(this);
+        button->setGeometry(QRect(100, 100, 100, 100));
+//! [0]
+
+//! [1]
+        QStateMachine *machine = new QStateMachine(this);
+
+        QState *s1 = new QState();
+        s1->assignProperty(button, "text", "Outside");
+
+        QState *s2 = new QState();
+        s2->assignProperty(button, "text", "Inside");
+//! [1]
+
+//! [2]
+        QEventTransition *enterTransition = new QEventTransition(button, QEvent::Enter);
+        enterTransition->setTargetState(s2);
+        s1->addTransition(enterTransition);
+//! [2]
+
+//! [3]
+        QEventTransition *leaveTransition = new QEventTransition(button, QEvent::Leave);
+        leaveTransition->setTargetState(s1);
+        s2->addTransition(leaveTransition);
+//! [3]
+
+//! [4]
+        QState *s3 = new QState();
+        s3->assignProperty(button, "text", "Pressing...");
+
+        QEventTransition *pressTransition = new QEventTransition(button, QEvent::MouseButtonPress);
+        pressTransition->setTargetState(s3);
+        s2->addTransition(pressTransition);
+
+        QEventTransition *releaseTransition = new QEventTransition(button, QEvent::MouseButtonRelease);
+        releaseTransition->setTargetState(s2);
+        s3->addTransition(releaseTransition);
+//! [4]
+
+//! [5]
+        machine->addState(s1);
+        machine->addState(s2);
+        machine->addState(s3);
+
+        machine->setInitialState(s1);
+        machine->start();
+    }
+};
+//! [5]
+
+//! [6]
+int main(int argc, char **argv)
+{
+    QApplication app(argc, argv);
+    Window window;
+    window.resize(300, 300);
+    window.show();
+
+    return app.exec();
+}
+//! [6]