Merge branch '4.6' of scm.dev.nokia.troll.no:qt/qt into 4.6

1 files changed, 118 insertions, 0 deletions

diff --git a/tests/manual/gestures/pinch/pinchwidget.cpp b/tests/manual/gestures/pinch/pinchwidget.cpp
new file mode 100644
index 0000000..cc16443
--- /dev/null
+++ b/tests/manual/gestures/pinch/pinchwidget.cpp
@@ -0,0 +1,118 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite 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 http://qt.nokia.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "pinchwidget.h"
+
+#include <QPainter>
+#include <QImage>
+#include <QPixmap>
+#include <QPanGesture>
+#include <QPinchGesture>
+#include <QPushButton>
+
+PinchWidget::PinchWidget(const QImage &image, QWidget *parent)
+    : QWidget(parent)
+{
+    setMinimumSize(100,100);
+    this->image = image;
+    pan = new QPanGesture(this);
+    connect(pan, SIGNAL(triggered()), this, SLOT(onPanTriggered()));
+    connect(pan, SIGNAL(finished()), this, SLOT(onPanFinished()));
+    pinch = new QPinchGesture(this);
+    connect(pinch, SIGNAL(triggered()), this, SLOT(onPinchTriggered()));
+    connect(pinch, SIGNAL(finished()), this, SLOT(onPinchFinished()));
+}
+
+QSize PinchWidget::sizeHint() const
+{
+    return image.size()*1.5;
+}
+
+void PinchWidget::paintEvent(QPaintEvent *)
+{
+    QPainter p(this);
+    QTransform t = worldTransform * currentPanTransform * currentPinchTransform;
+    p.setTransform(t);
+    QPoint center = QPoint(width()/2, height()/2);
+    QPoint size = QPoint(image.width()/2, image.height()/2);
+    p.translate(center - size);
+    p.drawImage(QPoint(0,0), image);
+}
+
+void PinchWidget::acceptTouchEvents()
+{
+    setAttribute(Qt::WA_AcceptTouchEvents);
+    if (QWidget *w = qobject_cast<QPushButton*>(sender()))
+        w->setEnabled(false);
+}
+
+void PinchWidget::onPanTriggered()
+{
+    currentPanTransform = QTransform()
+        .translate(pan->totalOffset().width(),
+                   pan->totalOffset().height());
+    update();
+}
+
+void PinchWidget::onPanFinished()
+{
+    worldTransform *= currentPanTransform;
+    currentPanTransform.reset();
+    update();
+}
+
+void PinchWidget::onPinchTriggered()
+{
+    QPoint transformCenter = worldTransform.map(QPoint(width()/2, height()/2));
+    currentPinchTransform = QTransform()
+        .translate(transformCenter.x(), transformCenter.y())
+        .scale(pinch->totalScaleFactor(), pinch->totalScaleFactor())
+        .rotate(pinch->totalRotationAngle())
+        .translate(-transformCenter.x(), -transformCenter.y());
+    update();
+}
+
+void PinchWidget::onPinchFinished()
+{
+    worldTransform *= currentPinchTransform;
+    currentPinchTransform.reset();
+    update();
+}