examples/tutorials/modelview/3_changingmodel/mymodel.cpp
changeset 33 3e2da88830cd
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30:5dc02b23752f 33:3e2da88830cd
       
     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2010 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 examples of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:BSD$
       
    10 ** You may use this file under the terms of the BSD license as follows:
       
    11 **
       
    12 ** "Redistribution and use in source and binary forms, with or without
       
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    26 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
       
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    37 ** $QT_END_LICENSE$
       
    38 **
       
    39 ****************************************************************************/
       
    40 
       
    41 #include <QTimer>
       
    42 #include <QTime>
       
    43 #include <QBrush>
       
    44 #include "mymodel.h"
       
    45 
       
    46 //! [quoting mymodel_a]
       
    47 MyModel::MyModel(QObject *parent)
       
    48     :QAbstractTableModel(parent)
       
    49 {
       
    50 //    selectedCell = 0;
       
    51     timer = new QTimer(this);
       
    52     timer->setInterval(1000);
       
    53     connect(timer, SIGNAL(timeout()) , this, SLOT(timerHit()));
       
    54     timer->start();
       
    55 }
       
    56 //! [quoting mymodel_a]
       
    57 //-------------------------------------------------------
       
    58 int MyModel::rowCount(const QModelIndex & /*parent */) const
       
    59 {
       
    60     return 2;
       
    61 }
       
    62 
       
    63 //-------------------------------------------------------
       
    64 int MyModel::columnCount(const QModelIndex & /*parent */) const
       
    65 {
       
    66     return 3;
       
    67 }
       
    68 
       
    69 //-------------------------------------------------------
       
    70 //! [quoting mymodel_QVariant ]
       
    71 QVariant MyModel::data(const QModelIndex &index, int role) const
       
    72 {
       
    73     int row = index.row();
       
    74     int col = index.column();
       
    75 
       
    76     if (role == Qt::DisplayRole)
       
    77     {
       
    78         if (row == 0 && col == 0)
       
    79         {
       
    80             return QTime::currentTime().toString();
       
    81         }
       
    82     }
       
    83     return QVariant();
       
    84 }
       
    85 //! [quoting mymodel_QVariant ]
       
    86 //-------------------------------------------------------
       
    87 //! [quoting mymodel_b ]
       
    88 void MyModel::timerHit()
       
    89 {
       
    90     //we identify the top left cell
       
    91     QModelIndex topLeft = createIndex(0,0);
       
    92     //emit a signal to make the view reread identified data
       
    93     emit dataChanged(topLeft, topLeft);
       
    94 }
       
    95 //! [quoting mymodel_b ]