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Fix the dynamicspline example
Michal Klocek -
r1304:052ae85991a9
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@@ -1,66 +1,64
1 /****************************************************************************
1 /****************************************************************************
2 **
2 **
3 ** Copyright (C) 2012 Digia Plc
3 ** Copyright (C) 2012 Digia Plc
4 ** All rights reserved.
4 ** All rights reserved.
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
5 ** For any questions to Digia, please use contact form at http://qt.digia.com
6 **
6 **
7 ** This file is part of the Qt Commercial Charts Add-on.
7 ** This file is part of the Qt Commercial Charts Add-on.
8 **
8 **
9 ** $QT_BEGIN_LICENSE$
9 ** $QT_BEGIN_LICENSE$
10 ** Licensees holding valid Qt Commercial licenses may use this file in
10 ** Licensees holding valid Qt Commercial licenses may use this file in
11 ** accordance with the Qt Commercial License Agreement provided with the
11 ** accordance with the Qt Commercial License Agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia.
13 ** a written agreement between you and Digia.
14 **
14 **
15 ** If you have questions regarding the use of this file, please use
15 ** If you have questions regarding the use of this file, please use
16 ** contact form at http://qt.digia.com
16 ** contact form at http://qt.digia.com
17 ** $QT_END_LICENSE$
17 ** $QT_END_LICENSE$
18 **
18 **
19 ****************************************************************************/
19 ****************************************************************************/
20
20
21 #include "chart.h"
21 #include "chart.h"
22 #include <QAxis>
22 #include <QAxis>
23 #include <QSplineSeries>
23 #include <QSplineSeries>
24 #include <QTime>
24 #include <QTime>
25
25
26 Chart::Chart(QGraphicsItem *parent, Qt::WindowFlags wFlags)
26 Chart::Chart(QGraphicsItem *parent, Qt::WindowFlags wFlags)
27 :QChart(parent, wFlags),
27 :QChart(parent, wFlags),
28 m_step(1),
28 m_step(1),
29 m_x(0),
29 m_x(0),
30 m_y(1)
30 m_y(1)
31 {
31 {
32 qsrand((uint) QTime::currentTime().msec());
32 qsrand((uint) QTime::currentTime().msec());
33
33
34 QObject::connect(&m_timer, SIGNAL(timeout()), this, SLOT(handleTimeout()));
34 QObject::connect(&m_timer, SIGNAL(timeout()), this, SLOT(handleTimeout()));
35 m_timer.setInterval(1000);
35 m_timer.setInterval(1000);
36
36
37 m_series = new QSplineSeries(this);
37 m_series = new QSplineSeries(this);
38 QPen green(Qt::red);
38 QPen green(Qt::red);
39 green.setWidth(3);
39 green.setWidth(3);
40 m_series->setPen(green);
40 m_series->setPen(green);
41 m_series->append(m_x, m_y);
41 m_series->append(m_x, m_y);
42
42
43 addSeries(m_series);
43 addSeries(m_series);
44
44
45 axisY()->setRange(-5, 5);
45 axisY()->setRange(-5, 5);
46 axisX()->setRange(-9, 1);
46 axisX()->setRange(-9, 1);
47 axisX()->setTicksCount(11);
47 axisX()->setTicksCount(11);
48
48
49 m_timer.start();
49 m_timer.start();
50 }
50 }
51
51
52 Chart::~Chart()
52 Chart::~Chart()
53 {
53 {
54
54
55 }
55 }
56
56
57 void Chart::handleTimeout()
57 void Chart::handleTimeout()
58 {
58 {
59 m_x += m_step;
59 m_x += m_step;
60 qreal y = m_y;
61 m_y = qrand() % 5 - 2.5;
60 m_y = qrand() % 5 - 2.5;
62 m_series->append(m_x, m_y);
61 m_series->append(m_x, m_y);
63 if (m_x >= 10)
64 m_series->remove(m_x - 10,y);
65 scrollRight();
62 scrollRight();
63 if(m_x==100) m_timer.stop();
66 }
64 }
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