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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

7 files changed, 575 insertions, 0 deletions

diff --git a/examples/gestures/gestures.pro b/examples/gestures/gestures.pro
new file mode 100644
index 0000000000..1e9e2270f3
--- /dev/null
+++ b/examples/gestures/gestures.pro
@@ -0,0 +1,10 @@
+TEMPLATE      = \
+              subdirs
+SUBDIRS       = \
+              imagegestures
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/gestures
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS gestures.pro README
+sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/gestures
+INSTALLS += target sources
diff --git a/examples/gestures/imagegestures/imagegestures.pro b/examples/gestures/imagegestures/imagegestures.pro
new file mode 100644
index 0000000000..10326e658d
--- /dev/null
+++ b/examples/gestures/imagegestures/imagegestures.pro
@@ -0,0 +1,21 @@
+HEADERS   = imagewidget.h \
+            mainwidget.h
+SOURCES   = imagewidget.cpp \
+            main.cpp \
+            mainwidget.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/gestures/imagegestures
+sources.files = $$SOURCES \
+    $$HEADERS \
+    $$RESOURCES \
+    $$FORMS \
+    imagegestures.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/gestures/imagegestures
+INSTALLS += target \
+    sources
+
+symbian {
+    TARGET.UID3 = 0xA000D7D0
+    include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri)
+}
diff --git a/examples/gestures/imagegestures/imagewidget.cpp b/examples/gestures/imagegestures/imagewidget.cpp
new file mode 100644
index 0000000000..8bbb96563e
--- /dev/null
+++ b/examples/gestures/imagegestures/imagewidget.cpp
@@ -0,0 +1,267 @@
+
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples 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 "imagewidget.h"
+
+#include <QtGui>
+
+//! [constructor]
+ImageWidget::ImageWidget(QWidget *parent)
+    : QWidget(parent),
+    position(0),
+    horizontalOffset(0),
+    verticalOffset(0),
+    rotationAngle(0),
+    scaleFactor(1),
+    currentStepScaleFactor(1)
+
+{
+    setMinimumSize(QSize(100,100));
+
+//! [enable gestures]
+    grabGesture(Qt::PanGesture);
+    grabGesture(Qt::PinchGesture);
+    grabGesture(Qt::SwipeGesture);
+//! [enable gestures]
+}
+//! [constructor]
+
+//! [event handler]
+bool ImageWidget::event(QEvent *event)
+{
+    if (event->type() == QEvent::Gesture)
+        return gestureEvent(static_cast<QGestureEvent*>(event));
+    return QWidget::event(event);
+}
+//! [event handler]
+
+void ImageWidget::paintEvent(QPaintEvent*)
+{
+    QPainter p(this);
+
+    float iw = currentImage.width();
+    float ih = currentImage.height();
+    float wh = height();
+    float ww = width();
+
+    p.translate(ww/2, wh/2);
+    p.translate(horizontalOffset, verticalOffset);
+    p.rotate(rotationAngle);
+    p.scale(currentStepScaleFactor * scaleFactor, currentStepScaleFactor * scaleFactor);
+    p.translate(-iw/2, -ih/2);
+    p.drawImage(0, 0, currentImage);
+}
+
+void ImageWidget::mouseDoubleClickEvent(QMouseEvent *)
+{
+    rotationAngle = 0;
+    scaleFactor = 1;
+    currentStepScaleFactor = 1;
+    verticalOffset = 0;
+    horizontalOffset = 0;
+    update();
+}
+
+//! [gesture event handler]
+bool ImageWidget::gestureEvent(QGestureEvent *event)
+{
+    if (QGesture *swipe = event->gesture(Qt::SwipeGesture))
+        swipeTriggered(static_cast<QSwipeGesture *>(swipe));
+    else if (QGesture *pan = event->gesture(Qt::PanGesture))
+        panTriggered(static_cast<QPanGesture *>(pan));
+    if (QGesture *pinch = event->gesture(Qt::PinchGesture))
+        pinchTriggered(static_cast<QPinchGesture *>(pinch));
+    return true;
+}
+//! [gesture event handler]
+
+void ImageWidget::panTriggered(QPanGesture *gesture)
+{
+#ifndef QT_NO_CURSOR
+    switch (gesture->state()) {
+        case Qt::GestureStarted:
+        case Qt::GestureUpdated:
+            setCursor(Qt::SizeAllCursor);
+            break;
+        default:
+            setCursor(Qt::ArrowCursor);
+    }
+#endif
+    QPointF delta = gesture->delta();
+    horizontalOffset += delta.x();
+    verticalOffset += delta.y();
+    update();
+}
+
+void ImageWidget::pinchTriggered(QPinchGesture *gesture)
+{
+    QPinchGesture::ChangeFlags changeFlags = gesture->changeFlags();
+    if (changeFlags & QPinchGesture::RotationAngleChanged) {
+        qreal value = gesture->property("rotationAngle").toReal();
+        qreal lastValue = gesture->property("lastRotationAngle").toReal();
+        rotationAngle += value - lastValue;
+    }
+    if (changeFlags & QPinchGesture::ScaleFactorChanged) {
+        qreal value = gesture->property("scaleFactor").toReal();
+        currentStepScaleFactor = value;
+    }
+    if (gesture->state() == Qt::GestureFinished) {
+        scaleFactor *= currentStepScaleFactor;
+        currentStepScaleFactor = 1;
+    }
+    update();
+}
+
+//! [swipe function]
+void ImageWidget::swipeTriggered(QSwipeGesture *gesture)
+{
+    if (gesture->state() == Qt::GestureFinished) {
+        if (gesture->horizontalDirection() == QSwipeGesture::Left
+            || gesture->verticalDirection() == QSwipeGesture::Up)
+            goPrevImage();
+        else
+            goNextImage();
+        update();
+    }
+}
+//! [swipe function]
+
+void ImageWidget::resizeEvent(QResizeEvent*)
+{
+    update();
+}
+
+void ImageWidget::openDirectory(const QString &path)
+{
+    this->path = path;
+    QDir dir(path);
+    QStringList nameFilters;
+    nameFilters << "*.jpg" << "*.png";
+    files = dir.entryList(nameFilters, QDir::Files|QDir::Readable, QDir::Name);
+
+    position = 0;
+    goToImage(0);
+    update();
+}
+
+QImage ImageWidget::loadImage(const QString &fileName)
+{
+    QImageReader reader(fileName);
+    if (!reader.canRead()) {
+        qDebug() << fileName << ": can't load image";
+        return QImage();
+    }
+
+    QImage image;
+    if (!reader.read(&image)) {
+        qDebug() << fileName << ": corrupted image";
+        return QImage();
+    }
+    return image;
+}
+
+void ImageWidget::goNextImage()
+{
+    if (files.isEmpty())
+        return;
+
+    if (position < files.size()-1) {
+        ++position;
+        prevImage = currentImage;
+        currentImage = nextImage;
+        if (position+1 < files.size())
+            nextImage = loadImage(path+QLatin1String("/")+files.at(position+1));
+        else
+            nextImage = QImage();
+    }
+    update();
+}
+
+void ImageWidget::goPrevImage()
+{
+    if (files.isEmpty())
+        return;
+
+    if (position > 0) {
+        --position;
+        nextImage = currentImage;
+        currentImage = prevImage;
+        if (position > 0)
+            prevImage = loadImage(path+QLatin1String("/")+files.at(position-1));
+        else
+            prevImage = QImage();
+    }
+    update();
+}
+
+void ImageWidget::goToImage(int index)
+{
+    if (files.isEmpty())
+        return;
+
+    if (index < 0 || index >= files.size()) {
+        qDebug() << "goToImage: invalid index: " << index;
+        return;
+    }
+
+    if (index == position+1) {
+        goNextImage();
+        return;
+    }
+
+    if (position > 0 && index == position-1) {
+        goPrevImage();
+        return;
+    }
+
+    position = index;
+
+    if (index > 0)
+        prevImage = loadImage(path+QLatin1String("/")+files.at(position-1));
+    else
+        prevImage = QImage();
+    currentImage = loadImage(path+QLatin1String("/")+files.at(position));
+    if (position+1 < files.size())
+        nextImage = loadImage(path+QLatin1String("/")+files.at(position+1));
+    else
+        nextImage = QImage();
+    update();
+}
diff --git a/examples/gestures/imagegestures/imagewidget.h b/examples/gestures/imagegestures/imagewidget.h
new file mode 100644
index 0000000000..fff24fbcdf
--- /dev/null
+++ b/examples/gestures/imagegestures/imagewidget.h
@@ -0,0 +1,100 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples 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."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef IMAGEWIDGET_H
+#define IMAGEWIDGET_H
+
+#include <QWidget>
+#include <QImage>
+#include <QtGui>
+
+QT_BEGIN_NAMESPACE
+class QGestureEvent;
+class QPanGesture;
+class QPinchGesture;
+class QSwipeGesture;
+QT_END_NAMESPACE
+
+//! [class definition begin]
+class ImageWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    ImageWidget(QWidget *parent = 0);
+    void openDirectory(const QString &path);
+
+protected:
+    bool event(QEvent *event);
+    void paintEvent(QPaintEvent *event);
+    void resizeEvent(QResizeEvent *event);
+    void mouseDoubleClickEvent(QMouseEvent *event);
+
+private:
+    bool gestureEvent(QGestureEvent *event);
+    void panTriggered(QPanGesture*);
+    void pinchTriggered(QPinchGesture*);
+    void swipeTriggered(QSwipeGesture*);
+//! [class definition begin]
+
+    void updateImage();
+    QImage loadImage(const QString &fileName);
+    void loadImage();
+    void goNextImage();
+    void goPrevImage();
+    void goToImage(int index);
+
+    QString path;
+    QStringList files;
+    int position;
+
+    QImage prevImage, nextImage;
+    QImage currentImage;
+
+    float horizontalOffset;
+    float verticalOffset;
+    float rotationAngle;
+    float scaleFactor;
+    float currentStepScaleFactor;
+//! [class definition end]
+};
+//! [class definition end]
+
+#endif
diff --git a/examples/gestures/imagegestures/main.cpp b/examples/gestures/imagegestures/main.cpp
new file mode 100644
index 0000000000..ca37a733f7
--- /dev/null
+++ b/examples/gestures/imagegestures/main.cpp
@@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples 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>
+
+#include "mainwidget.h"
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+
+    MainWidget w;
+    w.show();
+
+    if (QApplication::arguments().size() > 1)
+        w.openDirectory(QApplication::arguments().at(1));
+    else
+        w.openDirectory(QFileDialog::getExistingDirectory(0, "Select image folder"));
+
+    return app.exec();
+}
diff --git a/examples/gestures/imagegestures/mainwidget.cpp b/examples/gestures/imagegestures/mainwidget.cpp
new file mode 100644
index 0000000000..329cfe3bfd
--- /dev/null
+++ b/examples/gestures/imagegestures/mainwidget.cpp
@@ -0,0 +1,55 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples 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 "imagewidget.h"
+#include "mainwidget.h"
+
+MainWidget::MainWidget(QWidget *parent)
+    : QMainWindow(parent)
+{
+    resize(400, 300);
+    imageWidget = new ImageWidget(this);
+    setCentralWidget(imageWidget);
+}
+
+void MainWidget::openDirectory(const QString &path)
+{
+    imageWidget->openDirectory(path);
+}
diff --git a/examples/gestures/imagegestures/mainwidget.h b/examples/gestures/imagegestures/mainwidget.h
new file mode 100644
index 0000000000..066b1ee680
--- /dev/null
+++ b/examples/gestures/imagegestures/mainwidget.h
@@ -0,0 +1,64 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples 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."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MAINWIDGET_H
+#define MAINWIDGET_H
+
+#include <QMainWindow>
+
+class ImageWidget;
+
+class MainWidget : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    MainWidget(QWidget *parent = 0);
+
+public slots:
+    void openDirectory(const QString &path);
+
+private:
+    bool loadImage(const QString &fileName);
+
+    ImageWidget *imageWidget;
+};
+
+#endif