1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "mymodel.h"
#include <QTime>
//! [quoting mymodel_a]
MyModel::MyModel(QObject *parent)
: QAbstractTableModel(parent)
, timer(new QTimer(this))
{
timer->setInterval(1000);
connect(timer, &QTimer::timeout , this, &MyModel::timerHit);
timer->start();
}
//! [quoting mymodel_a]
//-------------------------------------------------------
int MyModel::rowCount(const QModelIndex & /*parent */) const
{
return 2;
}
//-------------------------------------------------------
int MyModel::columnCount(const QModelIndex & /*parent */) const
{
return 3;
}
//-------------------------------------------------------
//! [quoting mymodel_QVariant ]
QVariant MyModel::data(const QModelIndex &index, int role) const
{
int row = index.row();
int col = index.column();
if (role == Qt::DisplayRole && row == 0 && col == 0)
return QTime::currentTime().toString();
return QVariant();
}
//! [quoting mymodel_QVariant ]
//-------------------------------------------------------
//! [quoting mymodel_b ]
void MyModel::timerHit()
{
// we identify the top left cell
QModelIndex topLeft = createIndex(0,0);
// emit a signal to make the view reread identified data
emit dataChanged(topLeft, topLeft, {Qt::DisplayRole});
}
//! [quoting mymodel_b ]
|
