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qt5base-lts/tests/auto/widgets/util/qscroller/tst_qscroller.cpp
David Fries e6cb06a835 correct send vs sent grammar 
Correct the tense of send vs sent in comments and documentation.

Change-Id: I1c5ce9a7b1e49b8b0e8dcfde7d732e4c69acf73a
Reviewed-by: Kurt Pattyn <pattyn.kurt@gmail.com>
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
2014-03-14 15:27:03 +01:00

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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the $MODULE$ of the Qt Toolkit.
**
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**
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** 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
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**
** 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
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****************************************************************************/
#include <QtGui>
#include <QtWidgets>
#include <QtTest>
#include <qpa/qwindowsysteminterface.h>
// #include <QDebug>
class tst_QScrollerWidget : public QWidget
{
public:
tst_QScrollerWidget()
: QWidget()
{
reset();
}
void reset()
{
receivedPrepare = false;
receivedScroll = false;
receivedFirst = false;
receivedLast = false;
receivedOvershoot = false;
}
bool event(QEvent *e)
{
switch (e->type()) {
case QEvent::Gesture:
e->setAccepted(false); // better reject the event or QGestureManager will make trouble
return false;
case QEvent::ScrollPrepare:
{
receivedPrepare = true;
QScrollPrepareEvent *se = static_cast<QScrollPrepareEvent *>(e);
se->setViewportSize(QSizeF(100,100));
se->setContentPosRange(scrollArea);
se->setContentPos(scrollPosition);
se->accept();
return true;
}
case QEvent::Scroll:
{
receivedScroll = true;
QScrollEvent *se = static_cast<QScrollEvent *>(e);
// qDebug() << "Scroll for"<<this<<"pos"<<se->scrollPos()<<"ov"<<se->overshoot()<<"first"<<se->isFirst()<<"last"<<se->isLast();
if (se->scrollState() == QScrollEvent::ScrollStarted)
receivedFirst = true;
if (se->scrollState() == QScrollEvent::ScrollFinished)
receivedLast = true;
currentPos = se->contentPos();
overshoot = se->overshootDistance();
if (!qFuzzyCompare( overshoot.x() + 1.0, 1.0 ) ||
!qFuzzyCompare( overshoot.y() + 1.0, 1.0 ))
receivedOvershoot = true;
return true;
}
default:
return QObject::event(e);
}
}
QRectF scrollArea;
QPointF scrollPosition;
bool receivedPrepare;
bool receivedScroll;
bool receivedFirst;
bool receivedLast;
bool receivedOvershoot;
QPointF currentPos;
QPointF overshoot;
};
class tst_QScroller : public QObject
{
Q_OBJECT
public:
tst_QScroller() { }
~tst_QScroller() { }
private:
void kineticScroll( tst_QScrollerWidget *sw, QPointF from, QPoint touchStart, QPoint touchUpdate, QPoint touchEnd);
void kineticScrollNoTest( tst_QScrollerWidget *sw, QPointF from, QPoint touchStart, QPoint touchUpdate, QPoint touchEnd);
private slots:
void staticScrollers();
void scrollerProperties();
void scrollTo();
void scroll();
void overshoot();
};
/*! \internal
Generates touchBegin, touchUpdate and touchEnd events to trigger scrolling.
Tests some in between states but does not wait until scrolling is finished.
*/
void tst_QScroller::kineticScroll( tst_QScrollerWidget *sw, QPointF from, QPoint touchStart, QPoint touchUpdate, QPoint touchEnd)
{
sw->scrollPosition = from;
sw->currentPos= from;
QScroller *s1 = QScroller::scroller(sw);
QCOMPARE( s1->state(), QScroller::Inactive );
QScrollerProperties sp1 = QScroller::scroller(sw)->scrollerProperties();
QTouchEvent::TouchPoint rawTouchPoint;
rawTouchPoint.setId(0);
// send the touch begin event
QTouchEvent::TouchPoint touchPoint(0);
touchPoint.setState(Qt::TouchPointPressed);
touchPoint.setPos(touchStart);
touchPoint.setScenePos(touchStart);
touchPoint.setScreenPos(touchStart);
QTouchDevice *device = new QTouchDevice;
device->setType(QTouchDevice::TouchScreen);
QWindowSystemInterface::registerTouchDevice(device);
QTouchEvent touchEvent1(QEvent::TouchBegin,
device,
Qt::NoModifier,
Qt::TouchPointPressed,
(QList<QTouchEvent::TouchPoint>() << touchPoint));
QApplication::sendEvent(sw, &touchEvent1);
QCOMPARE( s1->state(), QScroller::Pressed );
// send the touch update far enough to trigger a scroll
QTest::qWait(200); // we need to wait a little or else the speed would be infinite. now we have around 500 pixel per second.
touchPoint.setPos(touchUpdate);
touchPoint.setScenePos(touchUpdate);
touchPoint.setScreenPos(touchUpdate);
QTouchEvent touchEvent2(QEvent::TouchUpdate,
device,
Qt::NoModifier,
Qt::TouchPointMoved,
(QList<QTouchEvent::TouchPoint>() << touchPoint));
QApplication::sendEvent(sw, &touchEvent2);
QCOMPARE( s1->state(), QScroller::Dragging );
QCOMPARE( sw->receivedPrepare, true );
QTRY_COMPARE( sw->receivedFirst, true );
QCOMPARE( sw->receivedScroll, true );
QCOMPARE( sw->receivedOvershoot, false );
// note that the scrolling goes in a different direction than the mouse move
QPoint calculatedPos = from.toPoint() - touchUpdate - touchStart;
QVERIFY(qAbs(sw->currentPos.x() - calculatedPos.x()) < 1.0);
QVERIFY(qAbs(sw->currentPos.y() - calculatedPos.y()) < 1.0);
// send the touch end
touchPoint.setPos(touchEnd);
touchPoint.setScenePos(touchEnd);
touchPoint.setScreenPos(touchEnd);
QTouchEvent touchEvent5(QEvent::TouchEnd,
device,
Qt::NoModifier,
Qt::TouchPointReleased,
(QList<QTouchEvent::TouchPoint>() << touchPoint));
QApplication::sendEvent(sw, &touchEvent5);
}
/*! \internal
Generates touchBegin, touchUpdate and touchEnd events to trigger scrolling.
This function does not have any in between tests, it does not expect the scroller to actually scroll.
*/
void tst_QScroller::kineticScrollNoTest( tst_QScrollerWidget *sw, QPointF from, QPoint touchStart, QPoint touchUpdate, QPoint touchEnd)
{
sw->scrollPosition = from;
sw->currentPos = from;
QScroller *s1 = QScroller::scroller(sw);
QCOMPARE( s1->state(), QScroller::Inactive );
QScrollerProperties sp1 = s1->scrollerProperties();
int fps = 60;
QTouchEvent::TouchPoint rawTouchPoint;
rawTouchPoint.setId(0);
// send the touch begin event
QTouchEvent::TouchPoint touchPoint(0);
touchPoint.setState(Qt::TouchPointPressed);
touchPoint.setPos(touchStart);
touchPoint.setScenePos(touchStart);
touchPoint.setScreenPos(touchStart);
QTouchDevice *device = new QTouchDevice;
device->setType(QTouchDevice::TouchScreen);
QWindowSystemInterface::registerTouchDevice(device);
QTouchEvent touchEvent1(QEvent::TouchBegin,
device,
Qt::NoModifier,
Qt::TouchPointPressed,
(QList<QTouchEvent::TouchPoint>() << touchPoint));
QApplication::sendEvent(sw, &touchEvent1);
// send the touch update far enough to trigger a scroll
QTest::qWait(200); // we need to wait a little or else the speed would be infinite. now we have around 500 pixel per second.
touchPoint.setPos(touchUpdate);
touchPoint.setScenePos(touchUpdate);
touchPoint.setScreenPos(touchUpdate);
QTouchEvent touchEvent2(QEvent::TouchUpdate,
device,
Qt::NoModifier,
Qt::TouchPointMoved,
(QList<QTouchEvent::TouchPoint>() << touchPoint));
QApplication::sendEvent(sw, &touchEvent2);
QTest::qWait(1000 / fps * 2); // wait until the first scroll move
// send the touch end
touchPoint.setPos(touchEnd);
touchPoint.setScenePos(touchEnd);
touchPoint.setScreenPos(touchEnd);
QTouchEvent touchEvent5(QEvent::TouchEnd,
device,
Qt::NoModifier,
Qt::TouchPointReleased,
(QList<QTouchEvent::TouchPoint>() << touchPoint));
QApplication::sendEvent(sw, &touchEvent5);
}
void tst_QScroller::staticScrollers()
{
// scrollers
{
QObject *o1 = new QObject(this);
QObject *o2 = new QObject(this);
// get scroller for object
QScroller *s1 = QScroller::scroller(o1);
QScroller *s2 = QScroller::scroller(o2);
QVERIFY(s1);
QVERIFY(s2);
QVERIFY(s1 != s2);
QVERIFY(!QScroller::scroller(static_cast<const QObject*>(0)));
QCOMPARE(QScroller::scroller(o1), s1);
delete o1;
delete o2;
}
// the same for properties
{
QObject *o1 = new QObject(this);
QObject *o2 = new QObject(this);
// get scroller for object
QScrollerProperties sp1 = QScroller::scroller(o1)->scrollerProperties();
QScrollerProperties sp2 = QScroller::scroller(o2)->scrollerProperties();
// default properties should be the same
QVERIFY(sp1 == sp2);
QCOMPARE(QScroller::scroller(o1)->scrollerProperties(), sp1);
delete o1;
delete o2;
}
}
void tst_QScroller::scrollerProperties()
{
QObject *o1 = new QObject(this);
QScrollerProperties sp1 = QScroller::scroller(o1)->scrollerProperties();
QScrollerProperties::ScrollMetric metrics[] =
{
QScrollerProperties::MousePressEventDelay, // qreal [s]
QScrollerProperties::DragStartDistance, // qreal [m]
QScrollerProperties::DragVelocitySmoothingFactor, // qreal [0..1/s] (complex calculation involving time) v = v_new* DASF + v_old * (1-DASF)
QScrollerProperties::AxisLockThreshold, // qreal [0..1] atan(|min(dx,dy)|/|max(dx,dy)|)
QScrollerProperties::DecelerationFactor, // slope of the curve
QScrollerProperties::MinimumVelocity, // qreal [m/s]
QScrollerProperties::MaximumVelocity, // qreal [m/s]
QScrollerProperties::MaximumClickThroughVelocity, // qreal [m/s]
QScrollerProperties::AcceleratingFlickMaximumTime, // qreal [s]
QScrollerProperties::AcceleratingFlickSpeedupFactor, // qreal [1..]
QScrollerProperties::SnapPositionRatio, // qreal [0..1]
QScrollerProperties::SnapTime, // qreal [s]
QScrollerProperties::OvershootDragResistanceFactor, // qreal [0..1]
QScrollerProperties::OvershootDragDistanceFactor, // qreal [0..1]
QScrollerProperties::OvershootScrollDistanceFactor, // qreal [0..1]
QScrollerProperties::OvershootScrollTime, // qreal [s]
};
for (unsigned int i = 0; i < sizeof(metrics) / sizeof(metrics[0]); i++) {
sp1.setScrollMetric(metrics[i], 0.9);
QCOMPARE(sp1.scrollMetric(metrics[i]).toDouble(), 0.9);
}
sp1.setScrollMetric(QScrollerProperties::ScrollingCurve, QEasingCurve(QEasingCurve::OutQuart));
QCOMPARE(sp1.scrollMetric(QScrollerProperties::ScrollingCurve).toEasingCurve().type(), QEasingCurve::OutQuart);
sp1.setScrollMetric(QScrollerProperties::HorizontalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootAlwaysOff));
QCOMPARE(sp1.scrollMetric(QScrollerProperties::HorizontalOvershootPolicy).value<QScrollerProperties::OvershootPolicy>(), QScrollerProperties::OvershootAlwaysOff);
sp1.setScrollMetric(QScrollerProperties::VerticalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootAlwaysOn));
QCOMPARE(sp1.scrollMetric(QScrollerProperties::VerticalOvershootPolicy).value<QScrollerProperties::OvershootPolicy>(), QScrollerProperties::OvershootAlwaysOn);
sp1.setScrollMetric(QScrollerProperties::FrameRate, QVariant::fromValue(QScrollerProperties::Fps20));
QCOMPARE(sp1.scrollMetric(QScrollerProperties::FrameRate).value<QScrollerProperties::FrameRates>(), QScrollerProperties::Fps20);
}
void tst_QScroller::scrollTo()
{
#ifdef Q_OS_MAC
QSKIP("Flakey test - https://bugreports.qt-project.org/browse/QTBUG-29950");
#endif
{
tst_QScrollerWidget *sw = new tst_QScrollerWidget();
sw->scrollArea = QRectF( 0, 0, 1000, 1000 );
sw->scrollPosition = QPointF( 500, 500 );
QScroller *s1 = QScroller::scroller(sw);
QCOMPARE( s1->state(), QScroller::Inactive );
// a normal scroll
s1->scrollTo(QPointF(100,100), 100);
QTest::qWait(200);
QCOMPARE( sw->receivedPrepare, true );
QCOMPARE( sw->receivedScroll, true );
QCOMPARE( sw->receivedFirst, true );
QCOMPARE( sw->receivedLast, true );
QCOMPARE( sw->receivedOvershoot, false );
QVERIFY(qFuzzyCompare( sw->currentPos.x(), 100 ));
QVERIFY(qFuzzyCompare( sw->currentPos.y(), 100 ));
delete sw;
}
}
void tst_QScroller::scroll()
{
#ifdef Q_OS_MAC
QSKIP("Flakey test - https://bugreports.qt-project.org/browse/QTBUG-30133");
#endif
#ifndef QT_NO_GESTURES
// -- good case. normal scroll
tst_QScrollerWidget *sw = new tst_QScrollerWidget();
sw->scrollArea = QRectF(0, 0, 1000, 1000);
QScroller::grabGesture(sw, QScroller::TouchGesture);
sw->setGeometry(100, 100, 400, 300);
QScroller *s1 = QScroller::scroller(sw);
kineticScroll(sw, QPointF(500, 500), QPoint(0, 0), QPoint(100, 100), QPoint(200, 200));
// now we should be scrolling
QTRY_COMPARE( s1->state(), QScroller::Scrolling );
// wait until finished, check that no further first scroll is sent
sw->receivedFirst = false;
sw->receivedScroll = false;
while (s1->state() == QScroller::Scrolling)
QTest::qWait(100);
QCOMPARE( sw->receivedFirst, false );
QCOMPARE( sw->receivedScroll, true );
QCOMPARE( sw->receivedLast, true );
QVERIFY(sw->currentPos.x() < 400);
QVERIFY(sw->currentPos.y() < 400);
// -- try to scroll when nothing to scroll
sw->reset();
sw->scrollArea = QRectF(0, 0, 0, 1000);
kineticScrollNoTest(sw, QPointF(0, 500), QPoint(0, 0), QPoint(100, 0), QPoint(200, 0));
while (s1->state() != QScroller::Inactive)
QTest::qWait(20);
QCOMPARE(sw->currentPos.x(), 0.0);
QCOMPARE(sw->currentPos.y(), 500.0);
delete sw;
#endif
}
void tst_QScroller::overshoot()
{
#ifdef Q_OS_MAC
QSKIP("Flakey test - https://bugreports.qt-project.org/browse/QTBUG-29950");
#endif
#ifndef QT_NO_GESTURES
tst_QScrollerWidget *sw = new tst_QScrollerWidget();
sw->scrollArea = QRectF(0, 0, 1000, 1000);
QScroller::grabGesture(sw, QScroller::TouchGesture);
sw->setGeometry(100, 100, 400, 300);
QScroller *s1 = QScroller::scroller(sw);
QScrollerProperties sp1 = s1->scrollerProperties();
sp1.setScrollMetric(QScrollerProperties::OvershootDragResistanceFactor, 0.5);
sp1.setScrollMetric(QScrollerProperties::OvershootDragDistanceFactor, 0.2);
sp1.setScrollMetric(QScrollerProperties::OvershootScrollDistanceFactor, 0.2);
// -- try to scroll with overshoot (when scrollable good case)
sp1.setScrollMetric(QScrollerProperties::HorizontalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootWhenScrollable));
s1->setScrollerProperties(sp1);
kineticScrollNoTest(sw, QPointF(500, 500), QPoint(0, 0), QPoint(400, 0), QPoint(490, 0));
while (s1->state() != QScroller::Inactive)
QTest::qWait(20);
//qDebug() << "Overshoot fuzzy: "<<sw->currentPos;
QVERIFY(qFuzzyCompare( sw->currentPos.x(), 0 ));
QVERIFY(qFuzzyCompare( sw->currentPos.y(), 500 ));
QCOMPARE( sw->receivedOvershoot, true );
// -- try to scroll with overshoot (when scrollable bad case)
sw->reset();
sw->scrollArea = QRectF(0, 0, 0, 1000);
sp1.setScrollMetric(QScrollerProperties::HorizontalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootWhenScrollable));
s1->setScrollerProperties(sp1);
kineticScrollNoTest(sw, QPointF(0, 500), QPoint(0, 0), QPoint(400, 0), QPoint(490, 0));
while (s1->state() != QScroller::Inactive)
QTest::qWait(20);
//qDebug() << "Overshoot fuzzy: "<<sw->currentPos;
QVERIFY(qFuzzyCompare( sw->currentPos.x(), 0 ));
QVERIFY(qFuzzyCompare( sw->currentPos.y(), 500 ));
QCOMPARE( sw->receivedOvershoot, false );
// -- try to scroll with overshoot (always on)
sw->reset();
sw->scrollArea = QRectF(0, 0, 0, 1000);
sp1.setScrollMetric(QScrollerProperties::HorizontalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootAlwaysOn));
s1->setScrollerProperties(sp1);
kineticScrollNoTest(sw, QPointF(0, 500), QPoint(0, 0), QPoint(400, 0), QPoint(490, 0));
while (s1->state() != QScroller::Inactive)
QTest::qWait(20);
//qDebug() << "Overshoot fuzzy: "<<sw->currentPos;
QVERIFY(qFuzzyCompare( sw->currentPos.x(), 0 ));
QVERIFY(qFuzzyCompare( sw->currentPos.y(), 500 ));
QCOMPARE( sw->receivedOvershoot, true );
// -- try to scroll with overshoot (always off)
sw->reset();
sw->scrollArea = QRectF(0, 0, 1000, 1000);
sp1.setScrollMetric(QScrollerProperties::HorizontalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootAlwaysOff));
s1->setScrollerProperties(sp1);
kineticScrollNoTest(sw, QPointF(500, 500), QPoint(0, 0), QPoint(400, 0), QPoint(490, 0));
while (s1->state() != QScroller::Inactive)
QTest::qWait(20);
QVERIFY(qFuzzyCompare( sw->currentPos.x(), 0 ));
QVERIFY(qFuzzyCompare( sw->currentPos.y(), 500 ));
QCOMPARE( sw->receivedOvershoot, false );
// -- try to scroll with overshoot (always on but max overshoot = 0)
sp1.setScrollMetric(QScrollerProperties::OvershootDragDistanceFactor, 0.0);
sp1.setScrollMetric(QScrollerProperties::OvershootScrollDistanceFactor, 0.0);
sw->reset();
sw->scrollArea = QRectF(0, 0, 1000, 1000);
sp1.setScrollMetric(QScrollerProperties::HorizontalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootAlwaysOn));
s1->setScrollerProperties(sp1);
kineticScrollNoTest(sw, QPointF(500, 500), QPoint(0, 0), QPoint(400, 0), QPoint(490, 0));
while (s1->state() != QScroller::Inactive)
QTest::qWait(20);
QVERIFY(qFuzzyCompare( sw->currentPos.x(), 0 ));
QVERIFY(qFuzzyCompare( sw->currentPos.y(), 500 ));
QCOMPARE( sw->receivedOvershoot, false );
delete sw;
#endif
}
QTEST_MAIN(tst_QScroller)
#include "tst_qscroller.moc"
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