1 files changed, 114 insertions, 0 deletions
diff --git a/examples/gestures/collidingmice/main.cpp b/examples/gestures/collidingmice/main.cpp
new file mode 100644
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+++ b/examples/gestures/collidingmice/main.cpp
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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 $MODULE$ of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** 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 "mouse.h"
+
+#include <QtGui>
+
+#include <math.h>
+
+static const int MouseCount = 7;
+
+class PannableGraphicsView : public QGraphicsView
+{
+public:
+    PannableGraphicsView(QGraphicsScene *scene, QWidget *parent = 0)
+        : QGraphicsView(scene, parent)
+    {
+        grabGesture(Qt::Pan);
+    }
+protected:
+    bool event(QEvent *event)
+    {
+        if (event->type() == QEvent::Gesture) {
+            QGestureEvent *ge = static_cast<QGestureEvent*>(event);
+            if (const QPannableGesture *g = dynamic_cast<const QPannableGesture*>(ge->gesture(Qt::Pan))) {
+                QPoint pt = g->pos() - g->lastPos();
+                horizontalScrollBar()->setValue(horizontalScrollBar()->value() - pt.x());
+                verticalScrollBar()->setValue(verticalScrollBar()->value() - pt.y());
+                event->accept();
+                return true;
+            }
+        }
+        return QGraphicsView::event(event);
+    }
+};
+
+//! [0]
+int main(int argc, char **argv)
+{
+    QApplication app(argc, argv);
+    QApplication::setAttribute(Qt::AA_EnableGestures);
+    qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));
+//! [0]
+
+//! [1]
+    QGraphicsScene scene;
+    scene.setSceneRect(-600, -600, 1200, 1200);
+//! [1] //! [2]
+    scene.setItemIndexMethod(QGraphicsScene::NoIndex);
+//! [2]
+
+//! [3]
+    for (int i = 0; i < MouseCount; ++i) {
+        Mouse *mouse = new Mouse;
+        mouse->setPos(::sin((i * 6.28) / MouseCount) * 200,
+                      ::cos((i * 6.28) / MouseCount) * 200);
+        scene.addItem(mouse);
+    }
+//! [3]
+
+//! [4]
+    PannableGraphicsView view(&scene);
+    view.setRenderHint(QPainter::Antialiasing);
+    view.setBackgroundBrush(QPixmap(":/images/cheese.jpg"));
+//! [4] //! [5]
+    view.setCacheMode(QGraphicsView::CacheBackground);
+    view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
+    //view.setDragMode(QGraphicsView::ScrollHandDrag);
+//! [5] //! [6]
+    view.setWindowTitle(QT_TRANSLATE_NOOP(QGraphicsView, "Colliding Mice"));
+    view.resize(400, 300);
+    view.show();
+
+    return app.exec();
+}
+//! [6]