tests/manual/qtouchevent/touchwidget.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the test suite module of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include "touchwidget.h"
       
    43 
       
    44 #include <QApplication>
       
    45 #include <QtEvents>
       
    46 #include <QTimer>
       
    47 #include <QTouchEvent>
       
    48 
       
    49 void TouchWidget::reset()
       
    50 {
       
    51     acceptTouchBegin
       
    52         = acceptTouchUpdate
       
    53         = acceptTouchEnd
       
    54         = seenTouchBegin
       
    55         = seenTouchUpdate
       
    56         = seenTouchEnd
       
    57         = closeWindowOnTouchEnd
       
    58 
       
    59         = acceptMousePress
       
    60         = acceptMouseMove
       
    61         = acceptMouseRelease
       
    62         = seenMousePress
       
    63         = seenMouseMove
       
    64         = seenMouseRelease
       
    65         = closeWindowOnMouseRelease
       
    66 
       
    67         = false;
       
    68     touchPointCount = 0;
       
    69 }
       
    70 
       
    71 bool TouchWidget::event(QEvent *event)
       
    72 {
       
    73     switch (event->type()) {
       
    74     case QEvent::TouchBegin:
       
    75         if (seenTouchBegin) qWarning("TouchBegin: already seen a TouchBegin");
       
    76         if (seenTouchUpdate) qWarning("TouchBegin: TouchUpdate cannot happen before TouchBegin");
       
    77         if (seenTouchEnd) qWarning("TouchBegin: TouchEnd cannot happen before TouchBegin");
       
    78         seenTouchBegin = !seenTouchBegin && !seenTouchUpdate && !seenTouchEnd;
       
    79         touchPointCount = qMax(touchPointCount, static_cast<QTouchEvent *>(event)->touchPoints().count());
       
    80         if (acceptTouchBegin) {
       
    81             event->accept();
       
    82             return true;
       
    83         }
       
    84         break;
       
    85     case QEvent::TouchUpdate:
       
    86         if (!seenTouchBegin) qWarning("TouchUpdate: have not seen TouchBegin");
       
    87         if (seenTouchEnd) qWarning("TouchUpdate: TouchEnd cannot happen before TouchUpdate");
       
    88         seenTouchUpdate = seenTouchBegin && !seenTouchEnd;
       
    89         touchPointCount = qMax(touchPointCount, static_cast<QTouchEvent *>(event)->touchPoints().count());
       
    90         if (acceptTouchUpdate) {
       
    91             event->accept();
       
    92             return true;
       
    93         }
       
    94         break;
       
    95     case QEvent::TouchEnd:
       
    96         if (!seenTouchBegin) qWarning("TouchEnd: have not seen TouchBegin");
       
    97         if (seenTouchEnd) qWarning("TouchEnd: already seen a TouchEnd");
       
    98         seenTouchEnd = seenTouchBegin && !seenTouchEnd;
       
    99         touchPointCount = qMax(touchPointCount, static_cast<QTouchEvent *>(event)->touchPoints().count());
       
   100         if (closeWindowOnTouchEnd)
       
   101             window()->close();
       
   102         if (acceptTouchEnd) {
       
   103             event->accept();
       
   104             return true;
       
   105         }
       
   106         break;
       
   107     case QEvent::MouseButtonPress:
       
   108     case QEvent::MouseButtonDblClick:
       
   109         seenMousePress = true;
       
   110         if (acceptMousePress) {
       
   111             event->accept();
       
   112             return true;
       
   113         }
       
   114         break;
       
   115     case QEvent::MouseMove:
       
   116         seenMouseMove = true;
       
   117         if (acceptMouseMove) {
       
   118             event->accept();
       
   119             return true;
       
   120         }
       
   121         break;
       
   122     case QEvent::MouseButtonRelease:
       
   123         seenMouseRelease = true;
       
   124         if (closeWindowOnMouseRelease)
       
   125             window()->close();        
       
   126         if (acceptMouseRelease) {
       
   127             event->accept();
       
   128             return true;
       
   129         }
       
   130         break;
       
   131     default:
       
   132         break;
       
   133     }
       
   134     return QWidget::event(event);
       
   135 }