Long live Qt!

14 files changed, 834 insertions, 0 deletions

diff --git a/examples/qtconcurrent/README b/examples/qtconcurrent/README
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--- /dev/null
+++ b/examples/qtconcurrent/README
@@ -0,0 +1,38 @@
+Qt 4 extends Qt's support for multithreaded applications with an API for
+concurrent programming which includes implementations of the well-known
+map-reduce and filter-reduce algorithms.
+
+
+The example launcher provided with Qt can be used to explore each of the
+examples in this directory.
+
+Documentation for these examples can be found via the Tutorial and Examples
+link in the main Qt documentation.
+
+
+Finding the Qt Examples and Demos launcher
+==========================================
+
+On Windows:
+
+The launcher can be accessed via the Windows Start menu. Select the menu
+entry entitled "Qt Examples and Demos" entry in the submenu containing
+the Qt tools.
+
+On Mac OS X:
+
+For the binary distribution, the qtdemo executable is installed in the
+/Developer/Applications/Qt directory. For the source distribution, it is
+installed alongside the other Qt tools on the path specified when Qt is
+configured.
+
+On Unix/Linux:
+
+The qtdemo executable is installed alongside the other Qt tools on the path
+specified when Qt is configured.
+
+On all platforms:
+
+The source code for the launcher can be found in the demos/qtdemo directory
+in the Qt package. This example is built at the same time as the Qt libraries,
+tools, examples, and demonstrations.
diff --git a/examples/qtconcurrent/imagescaling/imagescaling.cpp b/examples/qtconcurrent/imagescaling/imagescaling.cpp
new file mode 100644
index 0000000..d69adaa
--- /dev/null
+++ b/examples/qtconcurrent/imagescaling/imagescaling.cpp
@@ -0,0 +1,147 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples 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 "imagescaling.h"
+#include "math.h"
+
+#ifndef QT_NO_CONCURRENT
+
+const int imageSize = 100;
+
+QImage scale(const QString &imageFileName)
+{
+    QImage image(imageFileName);
+    return image.scaled(QSize(imageSize, imageSize), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
+}
+
+Images::Images(QWidget *parent) 
+: QWidget(parent)
+{
+    setWindowTitle(tr("Image loading and scaling example"));
+    resize(800, 600);
+
+    imageScaling = new QFutureWatcher<QImage>(this);
+    connect(imageScaling, SIGNAL(resultReadyAt(int)), SLOT(showImage(int)));
+    connect(imageScaling, SIGNAL(finished()), SLOT(finished()));
+
+    openButton = new QPushButton(tr("Open Images"));
+    connect(openButton, SIGNAL(clicked()), SLOT(open()));
+
+    cancelButton = new QPushButton(tr("Cancel"));
+    cancelButton->setEnabled(false);
+    connect(cancelButton, SIGNAL(clicked()), imageScaling, SLOT(cancel()));
+   
+    pauseButton = new QPushButton(tr("Pause/Resume"));
+    pauseButton->setEnabled(false);
+    connect(pauseButton, SIGNAL(clicked()), imageScaling, SLOT(togglePaused()));
+   
+    QHBoxLayout *buttonLayout = new QHBoxLayout();
+    buttonLayout->addWidget(openButton);
+    buttonLayout->addWidget(cancelButton);
+    buttonLayout->addWidget(pauseButton);
+    buttonLayout->addStretch();
+
+    imagesLayout = new QGridLayout();
+
+    mainLayout = new QVBoxLayout();
+    mainLayout->addLayout(buttonLayout);
+    mainLayout->addLayout(imagesLayout);
+    mainLayout->addStretch();
+    setLayout(mainLayout);
+}
+
+Images::~Images()
+{
+    imageScaling->cancel();
+    imageScaling->waitForFinished();
+}
+
+void Images::open()
+{
+    // Cancel and wait if we are already loading images.
+    if (imageScaling->isRunning()) {
+        imageScaling->cancel();
+        imageScaling->waitForFinished();
+    }
+
+    // Show a file open dialog at QDesktopServices::PicturesLocation.
+    QStringList files = QFileDialog::getOpenFileNames(this, tr("Select Images"), 
+                            QDesktopServices::storageLocation(QDesktopServices::PicturesLocation),
+                            "*.jpg *.png");
+
+    if (files.count() == 0)
+        return;
+
+    // Do a simple layout.
+    qDeleteAll(labels);
+    labels.clear();
+
+    int dim = sqrt(qreal(files.count())) + 1;
+    for (int i = 0; i < dim; ++i) {
+        for (int j = 0; j < dim; ++j) {
+            QLabel *imageLabel = new QLabel;
+            imageLabel->setFixedSize(imageSize,imageSize);
+            imagesLayout->addWidget(imageLabel,i,j);
+            labels.append(imageLabel);
+        }
+    }
+
+    // Use mapped to run the thread safe scale function on the files.
+    imageScaling->setFuture(QtConcurrent::mapped(files, scale));
+
+    openButton->setEnabled(false);
+    cancelButton->setEnabled(true);
+    pauseButton->setEnabled(true);
+}
+
+void Images::showImage(int num)
+{
+    labels[num]->setPixmap(QPixmap::fromImage(imageScaling->resultAt(num)));
+}
+
+void Images::finished()
+{
+    openButton->setEnabled(true);
+    cancelButton->setEnabled(false);
+    pauseButton->setEnabled(false);
+}
+
+#endif // QT_NO_CONCURRENT
+
diff --git a/examples/qtconcurrent/imagescaling/imagescaling.h b/examples/qtconcurrent/imagescaling/imagescaling.h
new file mode 100644
index 0000000..46dccf5
--- /dev/null
+++ b/examples/qtconcurrent/imagescaling/imagescaling.h
@@ -0,0 +1,82 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef IMAGESCALING_H
+#define IMAGESCALING_H
+
+#include <QtGui>
+
+#ifndef QT_NO_CONCURRENT
+
+class Images : public QWidget
+{
+Q_OBJECT
+public:
+    Images(QWidget *parent = 0);
+    ~Images();
+public Q_SLOTS:
+    void open();
+    void showImage(int num);
+    void finished();
+private:
+    QPushButton *openButton;
+    QPushButton *cancelButton;
+    QPushButton *pauseButton;
+    QVBoxLayout *mainLayout;
+    QList<QLabel *> labels;
+    QGridLayout *imagesLayout;
+    QFutureWatcher<QImage> *imageScaling;
+};
+
+#else
+
+// Dummy class required because QT_NO_CONCURRENT is not set when moc is run.
+class Images : public QWidget
+{
+Q_OBJECT
+public Q_SLOTS:
+    void open() {}
+    void showImage(int) {}
+    void finished() {}
+};
+
+#endif // QT_NO_CONCURRENT
+
+#endif // IMAGESCALING_H
diff --git a/examples/qtconcurrent/imagescaling/imagescaling.pro b/examples/qtconcurrent/imagescaling/imagescaling.pro
new file mode 100644
index 0000000..fbf864a
--- /dev/null
+++ b/examples/qtconcurrent/imagescaling/imagescaling.pro
@@ -0,0 +1,13 @@
+TEMPLATE = app
+DEPENDPATH += .
+INCLUDEPATH += .
+
+# Input
+SOURCES += main.cpp imagescaling.cpp
+HEADERS += imagescaling.h
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/qtconcurrent/imagescaling
+sources.files = $$SOURCES $$HEADERS $$FORMS $$RESOURCES *.pro *.png
+sources.path = $$[QT_INSTALL_EXAMPLES]/qtconcurrent/imagescaling
+INSTALLS += target sources
diff --git a/examples/qtconcurrent/imagescaling/main.cpp b/examples/qtconcurrent/imagescaling/main.cpp
new file mode 100644
index 0000000..c0bf9ce
--- /dev/null
+++ b/examples/qtconcurrent/imagescaling/main.cpp
@@ -0,0 +1,64 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples 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 <QtGui>
+
+#ifndef QT_NO_CONCURRENT
+
+#include "imagescaling.h"
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc,argv);
+
+    Images imageView;
+    imageView.show();
+
+    return app.exec();
+}
+
+#else
+
+int main()
+{
+    qDebug() << "Qt Concurrent is not supported on this platform";
+}
+
+#endif
diff --git a/examples/qtconcurrent/map/main.cpp b/examples/qtconcurrent/map/main.cpp
new file mode 100644
index 0000000..35b484d
--- /dev/null
+++ b/examples/qtconcurrent/map/main.cpp
@@ -0,0 +1,82 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples 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 <QImage>
+#include <QList>
+#include <QThread>
+#include <QDebug>
+#include <QApplication>
+#include <qtconcurrentmap.h>
+
+#ifndef QT_NO_CONCURRENT
+
+QImage scale(const QImage &image)
+{
+    qDebug() << "Scaling image in thread" << QThread::currentThread();
+    return image.scaled(QSize(100, 100), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
+}
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+
+    const int imageCount = 20;
+
+    // Create a list containing imageCount images.
+    QList<QImage> images;
+    for (int i = 0; i < imageCount; ++i)
+        images.append(QImage(1600, 1200, QImage::Format_ARGB32_Premultiplied));
+
+    // Use QtConcurrentBlocking::mapped to apply the scale function to all the
+    // images in the list.
+    QList<QImage> thumbnails = QtConcurrent::blockingMapped(images, scale);
+
+    return 0;
+}
+
+#else
+
+int main()
+{
+	qDebug() << "Qt Concurrent is not yet supported on this platform";
+}
+
+#endif
diff --git a/examples/qtconcurrent/map/map.pro b/examples/qtconcurrent/map/map.pro
new file mode 100644
index 0000000..f20267b
--- /dev/null
+++ b/examples/qtconcurrent/map/map.pro
@@ -0,0 +1,14 @@
+TEMPLATE = app
+TARGET = mapdemo
+DEPENDPATH += .
+INCLUDEPATH += .
+
+# Input
+SOURCES += main.cpp
+CONFIG += console
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/qtconcurrent/map
+sources.files = $$SOURCES $$HEADERS $$FORMS $$RESOURCES *.pro *.png
+sources.path = $$[QT_INSTALL_EXAMPLES]/qtconcurrent/map
+INSTALLS += target sources
diff --git a/examples/qtconcurrent/progressdialog/main.cpp b/examples/qtconcurrent/progressdialog/main.cpp
new file mode 100644
index 0000000..249fbc1
--- /dev/null
+++ b/examples/qtconcurrent/progressdialog/main.cpp
@@ -0,0 +1,100 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples 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 <QtGui>
+
+#ifndef QT_NO_CONCURRENT
+
+using namespace QtConcurrent;
+
+const int iterations = 20;
+
+void spin(int &iteration)
+{
+    const int work = 1000 * 1000 * 40;
+    volatile int v = 0;
+    for (int j = 0; j < work; ++j)
+        ++v;
+
+    qDebug() << "iteration" << iteration << "in thread" << QThread::currentThreadId();
+}
+
+int main(int argc, char **argv)
+{
+    QApplication app(argc, argv);
+
+    // Prepare the vector.
+    QVector<int> vector;
+    for (int i = 0; i < iterations; ++i)
+        vector.append(i);
+
+    // Create a progress dialog.
+    QProgressDialog dialog;
+    dialog.setLabelText(QString("Progressing using %1 thread(s)...").arg(QThread::idealThreadCount()));
+ 
+    // Create a QFutureWatcher and conncect signals and slots.
+    QFutureWatcher<void> futureWatcher;
+    QObject::connect(&futureWatcher, SIGNAL(finished()), &dialog, SLOT(reset()));
+    QObject::connect(&dialog, SIGNAL(canceled()), &futureWatcher, SLOT(cancel()));
+    QObject::connect(&futureWatcher, SIGNAL(progressRangeChanged(int, int)), &dialog, SLOT(setRange(int, int)));
+    QObject::connect(&futureWatcher, SIGNAL(progressValueChanged(int)), &dialog, SLOT(setValue(int)));
+
+    // Start the computation.
+    futureWatcher.setFuture(QtConcurrent::map(vector, spin));
+
+    // Display the dialog and start the event loop.
+    dialog.exec();
+    
+    futureWatcher.waitForFinished();
+
+    // Query the future to check if was canceled.
+    qDebug() << "Canceled?" << futureWatcher.future().isCanceled();
+}
+
+#else
+
+int main()
+{
+	qDebug() << "Qt Concurrent is not yet supported on this platform";
+}
+
+#endif
+
diff --git a/examples/qtconcurrent/progressdialog/progressdialog.pro b/examples/qtconcurrent/progressdialog/progressdialog.pro
new file mode 100644
index 0000000..12ba0bf
--- /dev/null
+++ b/examples/qtconcurrent/progressdialog/progressdialog.pro
@@ -0,0 +1,14 @@
+TEMPLATE = app
+TARGET += 
+DEPENDPATH += .
+INCLUDEPATH += .
+
+# Input
+SOURCES += main.cpp
+CONFIG += console
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/qtconcurrent/progressdialog
+sources.files = $$SOURCES $$HEADERS $$FORMS $$RESOURCES *.pro *.png
+sources.path = $$[QT_INSTALL_EXAMPLES]/qtconcurrent/progressdialog
+INSTALLS += target sources
diff --git a/examples/qtconcurrent/qtconcurrent.pro b/examples/qtconcurrent/qtconcurrent.pro
new file mode 100644
index 0000000..53008f0
--- /dev/null
+++ b/examples/qtconcurrent/qtconcurrent.pro
@@ -0,0 +1,12 @@
+TEMPLATE      = subdirs
+SUBDIRS       = imagescaling \
+                map \
+                progressdialog \
+                runfunction \
+                wordcount
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/qtconcurrent
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS qtconcurrent.pro README
+sources.path = $$[QT_INSTALL_EXAMPLES]/qtconcurrent
+INSTALLS += target sources
diff --git a/examples/qtconcurrent/runfunction/main.cpp b/examples/qtconcurrent/runfunction/main.cpp
new file mode 100644
index 0000000..c758f83
--- /dev/null
+++ b/examples/qtconcurrent/runfunction/main.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples 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 <QDebug>
+#include <QThread>
+#include <QString>
+#include <qtconcurrentrun.h>
+#include <QApplication>
+
+#ifndef QT_NO_CONCURRENT
+
+using namespace QtConcurrent;
+
+void hello(QString name)
+{
+    qDebug() << "Hello" << name << "from" << QThread::currentThread();
+}
+
+int main(int argc, char **argv)
+{
+    QApplication app(argc, argv);
+    QFuture<void> f1 = run(hello, QString("Alice"));
+    QFuture<void> f2 = run(hello, QString("Bob"));
+    f1.waitForFinished();
+    f2.waitForFinished();
+}
+
+#else
+
+int main()
+{
+	qDebug() << "Qt Concurrent is not yet supported on this platform";
+}
+
+#endif
diff --git a/examples/qtconcurrent/runfunction/runfunction.pro b/examples/qtconcurrent/runfunction/runfunction.pro
new file mode 100644
index 0000000..9034476
--- /dev/null
+++ b/examples/qtconcurrent/runfunction/runfunction.pro
@@ -0,0 +1,14 @@
+TEMPLATE = app
+TARGET += 
+DEPENDPATH += .
+INCLUDEPATH += .
+
+# Input
+SOURCES += main.cpp
+CONFIG += console
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/qtconcurrent/runfunction
+sources.files = $$SOURCES $$HEADERS $$FORMS $$RESOURCES *.pro *.png
+sources.path = $$[QT_INSTALL_EXAMPLES]/qtconcurrent/runfunction
+INSTALLS += target sources
diff --git a/examples/qtconcurrent/wordcount/main.cpp b/examples/qtconcurrent/wordcount/main.cpp
new file mode 100644
index 0000000..5008eaf
--- /dev/null
+++ b/examples/qtconcurrent/wordcount/main.cpp
@@ -0,0 +1,167 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples 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 <QList>
+#include <QMap>
+#include <QTextStream>
+#include <QString>
+#include <QStringList>
+#include <QDir>
+#include <QTime>
+#include <QApplication>
+#include <QDebug>
+
+#include <qtconcurrentmap.h>
+
+#ifndef QT_NO_CONCURRENT
+
+using namespace QtConcurrent;
+
+/*
+    Utility function that recursivily searches for files.
+*/
+QStringList findFiles(const QString &startDir, QStringList filters)
+{
+    QStringList names;
+    QDir dir(startDir);
+
+    foreach (QString file, dir.entryList(filters, QDir::Files))
+        names += startDir + "/" + file;
+
+    foreach (QString subdir, dir.entryList(QDir::AllDirs | QDir::NoDotAndDotDot))
+        names += findFiles(startDir + "/" + subdir, filters);
+    return names;
+}
+
+typedef QMap<QString, int> WordCount;
+
+/*
+    Single threaded word counter function.
+*/
+WordCount singleThreadedWordCount(QStringList files)
+{
+    WordCount wordCount;
+    foreach (QString file, files) {
+        QFile f(file);
+        f.open(QIODevice::ReadOnly);
+        QTextStream textStream(&f);
+        while (textStream.atEnd() == false)
+            foreach(QString word, textStream.readLine().split(" "))
+                wordCount[word] += 1;
+
+    }
+    return wordCount;
+}
+
+
+// countWords counts the words in a single file. This function is
+// called in parallel by several threads and must be thread
+// safe.
+WordCount countWords(const QString &file)
+{
+    QFile f(file);
+    f.open(QIODevice::ReadOnly);
+    QTextStream textStream(&f);
+    WordCount wordCount;
+
+    while (textStream.atEnd() == false)
+        foreach (QString word, textStream.readLine().split(" "))
+            wordCount[word] += 1;
+
+    return wordCount;
+}
+
+// reduce adds the results from map to the final
+// result. This functor will only be called by one thread
+// at a time.
+void reduce(WordCount &result, const WordCount &w)
+{
+    QMapIterator<QString, int> i(w);
+    while (i.hasNext()) {
+        i.next();
+        result[i.key()] += i.value();
+    }
+}
+
+int main(int argc, char** argv)
+{
+    QApplication app(argc, argv);
+    qDebug() << "finding files...";
+    QStringList files = findFiles("../../", QStringList() << "*.cpp" << "*.h");
+    qDebug() << files.count() << "files";
+
+    qDebug() << "warmup";
+    {
+        QTime time;
+        time.start();
+        WordCount total = singleThreadedWordCount(files);
+    }
+
+    qDebug() << "warmup done";
+
+    int singleThreadTime = 0;
+    {
+        QTime time;
+        time.start();
+        WordCount total = singleThreadedWordCount(files);
+        singleThreadTime = time.elapsed();
+        qDebug() << "single thread" << singleThreadTime;
+    }
+
+    int mapReduceTime = 0;
+    {
+        QTime time;
+        time.start();
+        WordCount total = mappedReduced(files, countWords, reduce);
+        mapReduceTime = time.elapsed();
+        qDebug() << "MapReduce" << mapReduceTime;
+    }
+    qDebug() << "MapReduce speedup x" << ((double)singleThreadTime - (double)mapReduceTime) / (double)mapReduceTime + 1;
+}
+
+#else
+
+int main()
+{
+	qDebug() << "Qt Concurrent is not yet supported on this platform";
+}
+
+#endif
diff --git a/examples/qtconcurrent/wordcount/wordcount.pro b/examples/qtconcurrent/wordcount/wordcount.pro
new file mode 100644
index 0000000..fba95ee
--- /dev/null
+++ b/examples/qtconcurrent/wordcount/wordcount.pro
@@ -0,0 +1,14 @@
+TEMPLATE = app
+TARGET += 
+DEPENDPATH += .
+INCLUDEPATH += .
+
+# Input
+SOURCES += main.cpp
+CONFIG += console
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/qtconcurrent/wordcount
+sources.files = $$SOURCES $$HEADERS $$FORMS $$RESOURCES *.pro *.png
+sources.path = $$[QT_INSTALL_EXAMPLES]/qtconcurrent/wordcount
+INSTALLS += target sources