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INT64_MAX -> INT_MAX in scatterinteractions example
Tero Ahola -
r1412:b77985346e74
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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 "chartview.h"
21 #include "chartview.h"
22 #include <math.h>
22 #include <math.h>
23 #include <QDebug>
23 #include <QDebug>
24
24
25 QTCOMMERCIALCHART_USE_NAMESPACE
25 QTCOMMERCIALCHART_USE_NAMESPACE
26
26
27 ChartView::ChartView(QWidget *parent)
27 ChartView::ChartView(QWidget *parent)
28 : QChartView(new QChart(), parent),
28 : QChartView(new QChart(), parent),
29 m_scatter(0),
29 m_scatter(0),
30 m_scatter2(0)
30 m_scatter2(0)
31 {
31 {
32 setRenderHint(QPainter::Antialiasing);
32 setRenderHint(QPainter::Antialiasing);
33
33
34 chart()->setTitle("Click to interact with scatter points");
34 chart()->setTitle("Click to interact with scatter points");
35
35
36 m_scatter = new QScatterSeries();
36 m_scatter = new QScatterSeries();
37 m_scatter->setName("scatter1");
37 m_scatter->setName("scatter1");
38 for(qreal x(0.5); x <= 4.0; x += 0.5) {
38 for(qreal x(0.5); x <= 4.0; x += 0.5) {
39 for(qreal y(0.5); y <= 4.0; y += 0.5) {
39 for(qreal y(0.5); y <= 4.0; y += 0.5) {
40 *m_scatter << QPointF(x, y);
40 *m_scatter << QPointF(x, y);
41 }
41 }
42 }
42 }
43 m_scatter2 = new QScatterSeries();
43 m_scatter2 = new QScatterSeries();
44 m_scatter2->setName("scatter2");
44 m_scatter2->setName("scatter2");
45
45
46 chart()->addSeries(m_scatter2);
46 chart()->addSeries(m_scatter2);
47 chart()->addSeries(m_scatter);
47 chart()->addSeries(m_scatter);
48 chart()->axisX()->setRange(0, 4.5);
48 chart()->axisX()->setRange(0, 4.5);
49 chart()->axisY()->setRange(0, 4.5);
49 chart()->axisY()->setRange(0, 4.5);
50
50
51 connect(m_scatter, SIGNAL(clicked(QPointF)), this, SLOT(handleClickedPoint(QPointF)));
51 connect(m_scatter, SIGNAL(clicked(QPointF)), this, SLOT(handleClickedPoint(QPointF)));
52 }
52 }
53
53
54 ChartView::~ChartView()
54 ChartView::~ChartView()
55 {
55 {
56 }
56 }
57
57
58 void ChartView::handleClickedPoint(const QPointF& point)
58 void ChartView::handleClickedPoint(const QPointF& point)
59 {
59 {
60 QPointF clickedPoint = point;
60 QPointF clickedPoint = point;
61 // Find the closest point from series 1
61 // Find the closest point from series 1
62 QPointF closest(INT64_MAX, INT64_MAX);
62 QPointF closest(INT_MAX, INT_MAX);
63 qreal distance(INT64_MAX);
63 qreal distance(INT_MAX);
64 foreach(QPointF currentPoint, m_scatter->points()) {
64 foreach(QPointF currentPoint, m_scatter->points()) {
65 qreal currentDistance = sqrt((currentPoint.x() - clickedPoint.x()) * (currentPoint.x() - clickedPoint.x())
65 qreal currentDistance = sqrt((currentPoint.x() - clickedPoint.x()) * (currentPoint.x() - clickedPoint.x())
66 + (currentPoint.y() - clickedPoint.y()) * (currentPoint.y() - clickedPoint.y()));
66 + (currentPoint.y() - clickedPoint.y()) * (currentPoint.y() - clickedPoint.y()));
67 if (currentDistance < distance) {
67 if (currentDistance < distance) {
68 distance = currentDistance;
68 distance = currentDistance;
69 closest = currentPoint;
69 closest = currentPoint;
70 }
70 }
71 }
71 }
72
72
73 // Remove the closes point from series 1 and append it to series 2
73 // Remove the closes point from series 1 and append it to series 2
74 m_scatter->remove(closest);
74 m_scatter->remove(closest);
75 m_scatter2->append(closest);
75 m_scatter2->append(closest);
76 }
76 }
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