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     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the test suite of the Qt Toolkit.

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    41 

    42 #include "gestures.h"

    43 

    44 #include <QTouchEvent>

    45 

    46 Qt::GestureType ThreeFingerSlideGesture::Type = Qt::CustomGesture;

    47 

    48 QGesture *ThreeFingerSlideGestureRecognizer::createGesture(QObject *)

    49 {

    50     return new ThreeFingerSlideGesture;

    51 }

    52 

    53 QGestureRecognizer::Result ThreeFingerSlideGestureRecognizer::filterEvent(QGesture *state, QObject *, QEvent *event)

    54 {

    55     ThreeFingerSlideGesture *d = static_cast<ThreeFingerSlideGesture *>(state);

    56     QGestureRecognizer::Result result;

    57     switch (event->type()) {

    58     case QEvent::TouchBegin:

    59         result = QGestureRecognizer::MaybeGesture;

    60     case QEvent::TouchEnd:

    61         if (d->gestureFired)

    62             result = QGestureRecognizer::GestureFinished;

    63         else

    64             result = QGestureRecognizer::NotGesture;

    65     case QEvent::TouchUpdate:

    66         if (d->state() != Qt::NoGesture) {

    67             QTouchEvent *ev = static_cast<QTouchEvent*>(event);

    68             if (ev->touchPoints().size() == 3) {

    69                 d->gestureFired = true;

    70                 result = QGestureRecognizer::GestureTriggered;

    71             } else {

    72                 result = QGestureRecognizer::MaybeGesture;

    73                 for (int i = 0; i < ev->touchPoints().size(); ++i) {

    74                     const QTouchEvent::TouchPoint &pt = ev->touchPoints().at(i);

    75                     const int distance = (pt.pos().toPoint() - pt.startPos().toPoint()).manhattanLength();

    76                     if (distance > 20) {

    77                         result = QGestureRecognizer::NotGesture;

    78                     }

    79                 }

    80             }

    81         } else {

    82             result = QGestureRecognizer::NotGesture;

    83         }

    84 

    85         break;

    86     case QEvent::MouseButtonPress:

    87     case QEvent::MouseButtonRelease:

    88     case QEvent::MouseMove:

    89         if (d->state() != Qt::NoGesture)

    90             result = QGestureRecognizer::Ignore;

    91         else

    92             result = QGestureRecognizer::NotGesture;

    93         break;

    94     default:

    95         result = QGestureRecognizer::Ignore;

    96         break;

    97     }

    98     return result;

    99 }

   100 

   101 void ThreeFingerSlideGestureRecognizer::reset(QGesture *state)

   102 {

   103     static_cast<ThreeFingerSlideGesture *>(state)->gestureFired = false;

   104     QGestureRecognizer::reset(state);

   105 }

   106 

   107 

   108 QGesture *RotateGestureRecognizer::createGesture(QObject *)

   109 {

   110     return new QGesture;

   111 }

   112 

   113 QGestureRecognizer::Result RotateGestureRecognizer::filterEvent(QGesture *, QObject *, QEvent *event)

   114 {

   115     switch (event->type()) {

   116     case QEvent::TouchBegin:

   117     case QEvent::TouchEnd:

   118     case QEvent::TouchUpdate:

   119         break;

   120     default:

   121         break;

   122     }

   123     return QGestureRecognizer::Ignore;

   124 }

   125 

   126 void RotateGestureRecognizer::reset(QGesture *state)

   127 {

   128     QGestureRecognizer::reset(state);

   129 }

   130 

   131 #include "moc_gestures.cpp"