Added autotest for gestures.

1 files changed, 487 insertions, 0 deletions

diff --git a/tests/auto/gestures/tst_gestures.cpp b/tests/auto/gestures/tst_gestures.cpp
new file mode 100644
index 0000000..eb692e9
--- /dev/null
+++ b/tests/auto/gestures/tst_gestures.cpp
@@ -0,0 +1,487 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <qapplication.h>
+#include <qlayout.h>
+
+#include <QtTest/QtTest>
+
+#include "customgesturerecognizer.h"
+
+//TESTED_CLASS=
+//TESTED_FILES=
+
+// color generator for syntax highlighting from QQ-26 by Helder Correia
+QVector<QColor> highlight(const QColor &bg, const
+                          QColor &fg, int noColors)
+{
+    QVector<QColor> colors;
+    const int HUE_BASE = (bg.hue() == -1) ? 90 : bg.hue();
+    int h, s, v;
+    for (int i = 0; i < noColors; i++) {
+        h = int(HUE_BASE + (360.0 / noColors * i)) % 360;
+        s = 240;
+        v = int(qMax(bg.value(), fg.value()) * 0.85);
+        
+        const int M = 35;
+        if ((h < bg.hue() + M && h > bg.hue() - M)
+            || (h < fg.hue() + M && h > fg.hue() - M))
+        {
+            h = ((bg.hue() + fg.hue()) / (i+1)) % 360;
+            s = ((bg.saturation() + fg.saturation() + 2*i)
+                 / 2) % 256;
+            v = ((bg.value() + fg.value() + 2*i) / 2)
+                % 256;
+        }
+        colors.append(QColor::fromHsv(h, s, v));
+    }
+    return colors;
+}
+
+
+// a hack to mark an event as spontaneous.
+class QETWidget
+{
+public:
+    static void setSpont(QEvent *event, bool spont) { event->spont = spont; }
+};
+
+class GestureWidget : public QWidget
+{
+    Q_OBJECT
+    static QVector<QColor> colors;
+    static int numberOfWidgets;
+
+public:
+    enum Type { DoNotGrabGestures, GrabAllGestures, GrabSingleshot, GrabPinch, GrabSecondFinger };
+
+    static const int LeftMargin = 10;
+    static const int TopMargin  = 20;
+
+    GestureWidget(Type type = GrabAllGestures)
+    {
+        if (colors.isEmpty()) {
+            colors = highlight(palette().color(QPalette::Window), palette().color(QPalette::Text), 5);
+        }
+        QPalette p = palette();
+        p.setColor(QPalette::Window, colors[numberOfWidgets % colors.size()]);
+        setPalette(p);
+        setAutoFillBackground(true);
+        ++numberOfWidgets;
+
+        QVBoxLayout *l = new QVBoxLayout(this);
+        l->setSpacing(0);
+        l->setContentsMargins(LeftMargin, TopMargin, LeftMargin, TopMargin);
+
+        singleshotGestureId = -1;
+        pinchGestureId = -1;
+        secondFingerGestureId = -1;
+        if (type == GrabAllGestures || type == GrabSingleshot) {
+            singleshotGestureId = grabGesture(SingleshotGestureRecognizer::Name);
+        }
+        if (type == GrabAllGestures || type == GrabPinch) {
+            pinchGestureId = grabGesture(PinchGestureRecognizer::Name);
+        }
+        if (type == GrabAllGestures || type == GrabSecondFinger) {
+            secondFingerGestureId = grabGesture(SecondFingerGestureRecognizer::Name);
+        }
+
+        reset();
+    }
+    ~GestureWidget()
+    {
+        --numberOfWidgets;
+        ungrabGestures();
+    }
+
+    void grabSingleshotGesture()
+    {
+        singleshotGestureId = grabGesture(SingleshotGestureRecognizer::Name);
+    }
+    void grabPinchGesture()
+    {
+        pinchGestureId = grabGesture(PinchGestureRecognizer::Name);
+    }
+    void grabSecondFingerGesture()
+    {
+        secondFingerGestureId = grabGesture(SecondFingerGestureRecognizer::Name);
+    }
+    void ungrabGestures()
+    {
+        releaseGesture(singleshotGestureId);
+        singleshotGestureId = -1;
+        releaseGesture(pinchGestureId);
+        pinchGestureId = -1;
+        releaseGesture(secondFingerGestureId);
+        secondFingerGestureId = -1;
+    }
+
+    int singleshotGestureId;
+    int pinchGestureId;
+    int secondFingerGestureId;
+
+    bool shouldAcceptSingleshotGesture;
+    bool shouldAcceptPinchGesture;
+    bool shouldAcceptSecondFingerGesture;
+
+    int seenGestureEvent;
+    struct LastGestureEvent
+    {
+        struct SingleshotGesture
+        {
+            bool delivered;
+            QPoint offset;
+        } singleshot;
+        struct PinchGesture
+        {
+            bool delivered;
+            TouchPoint startPoints[2];
+            TouchPoint lastPoints[2];
+            TouchPoint points[2];
+            QPoint offset;
+        } pinch;
+        struct SecondFingerGesture
+        {
+            bool delivered;
+            TouchPoint startPoint;
+            TouchPoint lastPoint;
+            TouchPoint point;
+            QPoint offset;
+        } secondfinger;
+        QSet<QString> cancelled;
+    } last;
+    void reset()
+    {
+        seenGestureEvent = 0;
+        last.singleshot.delivered = false;
+        last.singleshot.offset = QPoint();
+        last.pinch.delivered = false;
+        last.pinch.startPoints[0] = TouchPoint();
+        last.pinch.startPoints[1] = TouchPoint();
+        last.pinch.lastPoints[0] = TouchPoint();
+        last.pinch.lastPoints[1] = TouchPoint();
+        last.pinch.points[0] = TouchPoint();
+        last.pinch.points[1] = TouchPoint();
+        last.pinch.offset = QPoint();
+        last.secondfinger.delivered = false;
+        last.secondfinger.startPoint = TouchPoint();
+        last.secondfinger.lastPoint = TouchPoint();
+        last.secondfinger.point = TouchPoint();
+        last.secondfinger.offset = QPoint();
+        last.cancelled.clear();
+
+        shouldAcceptSingleshotGesture = true;
+        shouldAcceptPinchGesture = true;
+        shouldAcceptSecondFingerGesture = true;
+    }
+
+protected:
+    bool event(QEvent *event)
+    {
+        if (event->type() == QEvent::Gesture) {
+            QGestureEvent *e = static_cast<QGestureEvent*>(event);
+            ++seenGestureEvent;
+            if (SingleshotGesture *g = (SingleshotGesture*)e->gesture(SingleshotGestureRecognizer::Name)) {
+                last.singleshot.delivered = true;
+                last.singleshot.offset = g->offset;
+                if (shouldAcceptSingleshotGesture)
+                    g->accept();
+            }
+            if (PinchGesture *g = (PinchGesture*)e->gesture(PinchGestureRecognizer::Name)) {
+                last.pinch.delivered = true;
+                last.pinch.startPoints[0] = g->startPoints[0];
+                last.pinch.startPoints[1] = g->startPoints[1];
+                last.pinch.lastPoints[0] = g->lastPoints[0];
+                last.pinch.lastPoints[1] = g->lastPoints[1];
+                last.pinch.points[0] = g->points[0];
+                last.pinch.points[1] = g->points[1];
+                last.pinch.offset = g->offset;
+                if (shouldAcceptPinchGesture)
+                    g->accept();
+            }
+            if (SecondFingerGesture *g = (SecondFingerGesture*)e->gesture(SecondFingerGestureRecognizer::Name)) {
+                last.secondfinger.delivered = true;
+                last.secondfinger.startPoint = g->startPoint;
+                last.secondfinger.lastPoint = g->lastPoint;
+                last.secondfinger.point = g->point;
+                last.secondfinger.offset = g->offset;
+                if (shouldAcceptSecondFingerGesture)
+                    g->accept();
+            }
+            last.cancelled = e->cancelledGestures();
+            return true;
+        }
+        return QWidget::event(event);
+    }
+};
+QVector<QColor> GestureWidget::colors;
+int GestureWidget::numberOfWidgets = 0;
+
+class tst_Gestures : public QObject
+{
+    Q_OBJECT
+
+public:
+    tst_Gestures();
+    virtual ~tst_Gestures();
+
+public slots:
+    void initTestCase();
+    void cleanupTestCase();
+    void init();
+    void cleanup();
+
+private slots:
+    void singleshotGesture();
+    void pinchGesture();
+
+    void simplePropagation();
+    void simplePropagation2();
+    void acceptedGesturePropagation();
+
+private:
+    SingleshotGestureRecognizer *singleshotRecognizer;
+    PinchGestureRecognizer *pinchRecognizer;
+    SecondFingerGestureRecognizer *secondFingerRecognizer;
+    GestureWidget *mainWidget;
+
+    bool sendSpontaneousEvent(QWidget *receiver, QEvent *event);
+    void sendPinchEvents(QWidget *receiver, const QPoint &fromFinger1, const QPoint &fromFinger2);
+};
+
+tst_Gestures::tst_Gestures()
+{
+    singleshotRecognizer = new SingleshotGestureRecognizer;
+    pinchRecognizer = new PinchGestureRecognizer;
+    secondFingerRecognizer = new SecondFingerGestureRecognizer;
+    qApp->addGestureRecognizer(singleshotRecognizer);
+    qApp->addGestureRecognizer(pinchRecognizer);
+    qApp->addGestureRecognizer(secondFingerRecognizer);
+}
+
+tst_Gestures::~tst_Gestures()
+{
+}
+
+
+void tst_Gestures::initTestCase()
+{
+    mainWidget = new GestureWidget(GestureWidget::DoNotGrabGestures);
+    mainWidget->setObjectName("MainGestureWidget");
+    mainWidget->resize(500, 600);
+    mainWidget->show();
+}
+
+void tst_Gestures::cleanupTestCase()
+{
+    delete mainWidget; mainWidget = 0;
+}
+
+void tst_Gestures::init()
+{
+    // TODO: Add initialization code here.
+    // This will be executed immediately before each test is run.
+    mainWidget->reset();
+}
+
+void tst_Gestures::cleanup()
+{
+}
+
+bool tst_Gestures::sendSpontaneousEvent(QWidget *receiver, QEvent *event)
+{
+    QETWidget::setSpont(event, true);
+    return qApp->notify(receiver, event);
+}
+
+void tst_Gestures::singleshotGesture()
+{
+    mainWidget->grabSingleshotGesture();
+    SingleshotEvent event;
+    sendSpontaneousEvent(mainWidget, &event);
+    QVERIFY(mainWidget->seenGestureEvent);
+    QVERIFY(mainWidget->last.singleshot.delivered);
+    QVERIFY(mainWidget->last.cancelled.isEmpty());
+}
+
+void tst_Gestures::sendPinchEvents(QWidget *receiver, const QPoint &fromFinger1, const QPoint &fromFinger2)
+{
+    int x1 = fromFinger1.x();
+    int y1 = fromFinger1.x();
+    int x2 = fromFinger2.x();
+    int y2 = fromFinger2.x();
+
+    TouchEvent event;
+    event.points[0] = TouchPoint(0,x1,y1, TouchPoint::Begin);
+    event.points[1] = TouchPoint();
+    sendSpontaneousEvent(receiver, &event);
+    event.points[0] = TouchPoint(0, x1+=2,y1+=2, TouchPoint::Update);
+    event.points[1] = TouchPoint();
+    sendSpontaneousEvent(receiver, &event);
+    event.points[0] = TouchPoint(0, x1,y1, TouchPoint::Update);
+    event.points[1] = TouchPoint(1, x2,y2, TouchPoint::Begin);
+    sendSpontaneousEvent(receiver, &event);
+    event.points[0] = TouchPoint(0, x1+=5,y1+=10, TouchPoint::End);
+    event.points[1] = TouchPoint(1, x2+=3,y2+=6, TouchPoint::Update);
+    sendSpontaneousEvent(receiver, &event);
+    event.points[0] = TouchPoint();
+    event.points[1] = TouchPoint(1, x2+=10,y2+=15, TouchPoint::Update);
+    sendSpontaneousEvent(receiver, &event);
+    event.points[0] = TouchPoint();
+    event.points[1] = TouchPoint(1, x2,y2, TouchPoint::End);
+    sendSpontaneousEvent(receiver, &event);
+}
+
+void tst_Gestures::pinchGesture()
+{
+    mainWidget->grabPinchGesture();
+    sendPinchEvents(mainWidget, QPoint(10,10), QPoint(20,20));
+
+    QVERIFY(mainWidget->seenGestureEvent);
+    QVERIFY(!mainWidget->last.singleshot.delivered);
+    QVERIFY(mainWidget->last.cancelled.isEmpty());
+    QVERIFY(mainWidget->last.pinch.delivered);
+    QCOMPARE(mainWidget->last.pinch.startPoints[0].pt, QPoint(10,10));
+    QCOMPARE(mainWidget->last.pinch.startPoints[1].pt, QPoint(20,20));
+    QCOMPARE(mainWidget->last.pinch.offset, QPoint(0,0));
+}
+
+void tst_Gestures::simplePropagation()
+{
+    mainWidget->grabSingleshotGesture();
+    GestureWidget offsetWidget(GestureWidget::DoNotGrabGestures);
+    offsetWidget.setFixedSize(30, 30);
+    mainWidget->layout()->addWidget(&offsetWidget);
+    GestureWidget nonGestureWidget(GestureWidget::DoNotGrabGestures);
+    mainWidget->layout()->addWidget(&nonGestureWidget);
+    QApplication::processEvents();
+
+    SingleshotEvent event;
+    sendSpontaneousEvent(&nonGestureWidget, &event);
+    QVERIFY(!offsetWidget.seenGestureEvent);
+    QVERIFY(!nonGestureWidget.seenGestureEvent);
+    QVERIFY(mainWidget->seenGestureEvent);
+    QVERIFY(mainWidget->last.cancelled.isEmpty());
+    QVERIFY(mainWidget->last.singleshot.delivered);
+    QCOMPARE(mainWidget->last.singleshot.offset, QPoint(GestureWidget::LeftMargin, 30 + GestureWidget::TopMargin));
+}
+
+void tst_Gestures::simplePropagation2()
+{
+    mainWidget->grabSingleshotGesture();
+    mainWidget->grabPinchGesture();
+    GestureWidget nonGestureMiddleWidget(GestureWidget::DoNotGrabGestures);
+    GestureWidget secondGestureWidget(GestureWidget::GrabPinch);
+    nonGestureMiddleWidget.layout()->addWidget(&secondGestureWidget);
+    mainWidget->layout()->addWidget(&nonGestureMiddleWidget);
+    QApplication::processEvents();
+
+    SingleshotEvent event;
+    sendSpontaneousEvent(&secondGestureWidget, &event);
+    QVERIFY(!secondGestureWidget.seenGestureEvent);
+    QVERIFY(!nonGestureMiddleWidget.seenGestureEvent);
+    QVERIFY(mainWidget->seenGestureEvent);
+    QVERIFY(mainWidget->last.singleshot.delivered);
+    QVERIFY(mainWidget->last.cancelled.isEmpty());
+    QCOMPARE(mainWidget->last.singleshot.offset, QPoint(GestureWidget::LeftMargin*2,GestureWidget::TopMargin*2));
+
+    mainWidget->reset();
+    nonGestureMiddleWidget.reset();
+    secondGestureWidget.reset();
+
+    sendPinchEvents(&secondGestureWidget, QPoint(10,10), QPoint(20,20));
+    QVERIFY(secondGestureWidget.seenGestureEvent);
+    QVERIFY(!secondGestureWidget.last.singleshot.delivered);
+    QVERIFY(secondGestureWidget.last.pinch.delivered);
+    QCOMPARE(secondGestureWidget.last.pinch.startPoints[0].pt, QPoint(10,10));
+    QCOMPARE(secondGestureWidget.last.pinch.startPoints[1].pt, QPoint(20,20));
+    QCOMPARE(secondGestureWidget.last.pinch.offset, QPoint(0,0));
+    QVERIFY(!nonGestureMiddleWidget.seenGestureEvent);
+    QVERIFY(!mainWidget->seenGestureEvent);
+}
+
+void tst_Gestures::acceptedGesturePropagation()
+{
+    mainWidget->grabSingleshotGesture();
+    mainWidget->grabPinchGesture();
+    mainWidget->grabSecondFingerGesture();
+    GestureWidget nonGestureMiddleWidget(GestureWidget::DoNotGrabGestures);
+    nonGestureMiddleWidget.setObjectName("nonGestureMiddleWidget");
+    GestureWidget secondGestureWidget(GestureWidget::GrabSecondFinger);
+    secondGestureWidget.setObjectName("secondGestureWidget");
+    nonGestureMiddleWidget.layout()->addWidget(&secondGestureWidget);
+    mainWidget->layout()->addWidget(&nonGestureMiddleWidget);
+    QApplication::processEvents();
+
+    sendPinchEvents(&secondGestureWidget, QPoint(10, 10), QPoint(40, 40));
+    QVERIFY(secondGestureWidget.seenGestureEvent);
+    QVERIFY(!secondGestureWidget.last.singleshot.delivered);
+    QVERIFY(!secondGestureWidget.last.pinch.delivered);
+    QVERIFY(secondGestureWidget.last.secondfinger.delivered);
+    QCOMPARE(secondGestureWidget.last.secondfinger.startPoint.pt, QPoint(40,40));
+    QVERIFY(!nonGestureMiddleWidget.seenGestureEvent);
+    QVERIFY(mainWidget->seenGestureEvent);
+    QVERIFY(!mainWidget->last.singleshot.delivered);
+    QVERIFY(!mainWidget->last.secondfinger.delivered);
+    QVERIFY(mainWidget->last.pinch.delivered);
+    QCOMPARE(mainWidget->last.pinch.startPoints[0].pt, QPoint(10,10));
+    QCOMPARE(mainWidget->last.pinch.startPoints[1].pt, QPoint(40,40));
+
+    mainWidget->reset();
+    nonGestureMiddleWidget.reset();
+    secondGestureWidget.reset();
+
+    // don't accept it and make sure it propagates to parent
+    secondGestureWidget.shouldAcceptSecondFingerGesture = false;
+    sendPinchEvents(&secondGestureWidget, QPoint(10, 10), QPoint(40, 40));
+    QVERIFY(secondGestureWidget.seenGestureEvent);
+    QVERIFY(secondGestureWidget.last.secondfinger.delivered);
+    QVERIFY(!nonGestureMiddleWidget.seenGestureEvent);
+    QVERIFY(mainWidget->seenGestureEvent);
+    QVERIFY(!mainWidget->last.singleshot.delivered);
+    QVERIFY(mainWidget->last.secondfinger.delivered);
+    QVERIFY(mainWidget->last.pinch.delivered);
+}
+
+
+QTEST_MAIN(tst_Gestures)
+#include "tst_gestures.moc"