@@ -1,117 +1,94 | |||||
1 | #include "qlineseries.h" |
|
1 | #include "qlineseries.h" | |
2 |
|
2 | |||
3 | QTCOMMERCIALCHART_BEGIN_NAMESPACE |
|
3 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | |
4 |
|
4 | |||
5 | /*! |
|
5 | /*! | |
6 | \class QLineSeries |
|
6 | \class QLineSeries | |
7 | \brief The QLineSeries class is used for making line charts. |
|
7 | \brief The QLineSeries class is used for making line charts. | |
8 |
|
8 | |||
9 | \mainclass |
|
9 | \mainclass | |
10 |
|
10 | |||
11 | A line chart is used to show information as a series of data points |
|
11 | A line chart is used to show information as a series of data points | |
12 | connected by straight lines. |
|
12 | connected by straight lines. | |
13 |
|
13 | |||
14 | \image linechart.png |
|
14 | \image linechart.png | |
15 |
|
15 | |||
16 | Creating basic line chart is simple: |
|
16 | Creating basic line chart is simple: | |
17 | \code |
|
17 | \code | |
18 | QLineSeries* series = new QLineSeries(); |
|
18 | QLineSeries* series = new QLineSeries(); | |
19 | series->add(0, 6); |
|
19 | series->add(0, 6); | |
20 | series->add(2, 4); |
|
20 | series->add(2, 4); | |
21 | ... |
|
21 | ... | |
22 | chartView->addSeries(series); |
|
22 | chartView->addSeries(series); | |
23 | \endcode |
|
23 | \endcode | |
24 | */ |
|
24 | */ | |
25 |
|
25 | |||
26 | /*! |
|
26 | /*! | |
27 | \fn virtual QSeriesType QLineSeries::type() const |
|
27 | \fn virtual QSeriesType QLineSeries::type() const | |
28 | \brief Returns type of series. |
|
28 | \brief Returns type of series. | |
29 | \sa QSeries, QSeriesType |
|
29 | \sa QSeries, QSeriesType | |
30 | */ |
|
30 | */ | |
31 |
|
31 | |||
32 | /*! |
|
32 | /*! | |
33 | \fn QPen QLineSeries::pen() const |
|
33 | \fn QPen QLineSeries::pen() const | |
34 | \brief Returns the pen used to draw line for this series. |
|
34 | \brief Returns the pen used to draw line for this series. | |
35 | \sa setPen() |
|
35 | \sa setPen() | |
36 | */ |
|
36 | */ | |
37 |
|
37 | |||
38 | /*! |
|
38 | /*! | |
39 | \fn bool QLineSeries::pointsVisible() const |
|
39 | \fn bool QLineSeries::pointsVisible() const | |
40 | \brief Returns if the points are drawn for this series. |
|
40 | \brief Returns if the points are drawn for this series. | |
41 | \sa setPointsVisible() |
|
41 | \sa setPointsVisible() | |
42 | */ |
|
42 | */ | |
43 |
|
43 | |||
44 |
|
44 | |||
45 | /*! |
|
45 | /*! | |
46 | \fn void QLineSeries::pointReplaced(int index) |
|
46 | \fn void QLineSeries::pointReplaced(int index) | |
47 | \brief \internal \a index |
|
47 | \brief \internal \a index | |
48 | */ |
|
48 | */ | |
49 |
|
49 | |||
50 | /*! |
|
50 | /*! | |
51 | \fn void QLineSeries::pointAdded(int index) |
|
51 | \fn void QLineSeries::pointAdded(int index) | |
52 | \brief \internal \a index |
|
52 | \brief \internal \a index | |
53 | */ |
|
53 | */ | |
54 |
|
54 | |||
55 | /*! |
|
55 | /*! | |
56 | \fn void QLineSeries::pointRemoved(int index) |
|
56 | \fn void QLineSeries::pointRemoved(int index) | |
57 | \brief \internal \a index |
|
57 | \brief \internal \a index | |
58 | */ |
|
58 | */ | |
59 |
|
59 | |||
60 | /*! |
|
60 | /*! | |
61 | \fn void QLineSeries::updated() |
|
61 | \fn void QLineSeries::updated() | |
62 | \brief \internal |
|
62 | \brief \internal | |
63 | */ |
|
63 | */ | |
64 |
|
64 | |||
65 | /*! |
|
65 | /*! | |
66 | Constructs empty series object which is a child of \a parent. |
|
66 | Constructs empty series object which is a child of \a parent. | |
67 | When series object is added to QChartView or QChart instance ownerships is transfered. |
|
67 | When series object is added to QChartView or QChart instance ownerships is transfered. | |
68 | */ |
|
68 | */ | |
69 |
QLineSeries::QLineSeries(QObject* parent):QXYSeries(parent) |
|
69 | QLineSeries::QLineSeries(QObject* parent):QXYSeries(parent) | |
70 | m_pointsVisible(false) |
|
|||
71 | { |
|
70 | { | |
72 | } |
|
71 | } | |
73 | /*! |
|
72 | /*! | |
74 | Destroys the object. Series added to QChartView or QChart instances are owned by those, |
|
73 | Destroys the object. Series added to QChartView or QChart instances are owned by those, | |
75 | and are deleted when mentioned object are destroyed. |
|
74 | and are deleted when mentioned object are destroyed. | |
76 | */ |
|
75 | */ | |
77 | QLineSeries::~QLineSeries() |
|
76 | QLineSeries::~QLineSeries() | |
78 | { |
|
77 | { | |
79 | } |
|
78 | } | |
80 |
|
79 | |||
81 | /*! |
|
|||
82 | Sets \a pen used for drawing given series.. |
|
|||
83 | */ |
|
|||
84 | void QLineSeries::setPen(const QPen& pen) |
|
|||
85 | { |
|
|||
86 | if(pen!=m_pen){ |
|
|||
87 | m_pen=pen; |
|
|||
88 | emit updated(); |
|
|||
89 | } |
|
|||
90 | } |
|
|||
91 |
|
||||
92 | /*! |
|
|||
93 | Sets if data points are \a visible and should be drawn on line. |
|
|||
94 | */ |
|
|||
95 | void QLineSeries::setPointsVisible(bool visible) |
|
|||
96 | { |
|
|||
97 | if(m_pointsVisible!=visible){ |
|
|||
98 | m_pointsVisible=visible; |
|
|||
99 | emit updated(); |
|
|||
100 | } |
|
|||
101 | } |
|
|||
102 |
|
||||
103 | QDebug operator<< (QDebug debug, const QLineSeries series) |
|
80 | QDebug operator<< (QDebug debug, const QLineSeries series) | |
104 | { |
|
81 | { | |
105 | Q_ASSERT(series.m_x.size() == series.m_y.size()); |
|
82 | Q_ASSERT(series.m_x.size() == series.m_y.size()); | |
106 |
|
83 | |||
107 | int size = series.m_x.size(); |
|
84 | int size = series.m_x.size(); | |
108 |
|
85 | |||
109 | for (int i=0;i<size;i++) { |
|
86 | for (int i=0;i<size;i++) { | |
110 | debug.nospace() << "(" << series.m_x.at(i) << ','<< series.m_y.at(i) << ") "; |
|
87 | debug.nospace() << "(" << series.m_x.at(i) << ','<< series.m_y.at(i) << ") "; | |
111 | } |
|
88 | } | |
112 | return debug.space(); |
|
89 | return debug.space(); | |
113 | } |
|
90 | } | |
114 |
|
91 | |||
115 | #include "moc_qlineseries.cpp" |
|
92 | #include "moc_qlineseries.cpp" | |
116 |
|
93 | |||
117 | QTCOMMERCIALCHART_END_NAMESPACE |
|
94 | QTCOMMERCIALCHART_END_NAMESPACE |
@@ -1,35 +1,27 | |||||
1 | #ifndef QLINESERIES_H_ |
|
1 | #ifndef QLINESERIES_H_ | |
2 | #define QLINESERIES_H_ |
|
2 | #define QLINESERIES_H_ | |
3 |
|
3 | |||
4 | #include "qchartglobal.h" |
|
4 | #include "qchartglobal.h" | |
5 | #include "qxyseries.h" |
|
5 | #include "qxyseries.h" | |
6 | #include <QDebug> |
|
6 | #include <QDebug> | |
7 | #include <QPen> |
|
7 | #include <QPen> | |
8 | #include <QBrush> |
|
8 | #include <QBrush> | |
9 |
|
9 | |||
10 | QTCOMMERCIALCHART_BEGIN_NAMESPACE |
|
10 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | |
11 |
|
11 | |||
12 | class QTCOMMERCIALCHART_EXPORT QLineSeries : public QXYSeries |
|
12 | class QTCOMMERCIALCHART_EXPORT QLineSeries : public QXYSeries | |
13 | { |
|
13 | { | |
14 | Q_OBJECT |
|
14 | Q_OBJECT | |
15 | public: |
|
15 | public: | |
16 | QLineSeries(QObject* parent=0); |
|
16 | QLineSeries(QObject* parent=0); | |
17 | virtual ~QLineSeries(); |
|
17 | virtual ~QLineSeries(); | |
18 |
|
18 | |||
19 | public: // from QChartSeries |
|
19 | public: // from QChartSeries | |
20 | virtual QSeriesType type() const {return QSeries::SeriesTypeLine;} |
|
20 | virtual QSeriesType type() const {return QSeries::SeriesTypeLine;} | |
21 | void setPen(const QPen& pen); |
|
|||
22 | QPen pen() const {return m_pen;} |
|
|||
23 |
|
||||
24 | void setPointsVisible(bool visible); |
|
|||
25 | bool pointsVisible() const {return m_pointsVisible;} |
|
|||
26 |
|
||||
27 | friend QDebug operator<< (QDebug d, const QLineSeries series); |
|
21 | friend QDebug operator<< (QDebug d, const QLineSeries series); | |
28 | private: |
|
22 | ||
29 | QPen m_pen; |
|
|||
30 | bool m_pointsVisible; |
|
|||
31 | }; |
|
23 | }; | |
32 |
|
24 | |||
33 | QTCOMMERCIALCHART_END_NAMESPACE |
|
25 | QTCOMMERCIALCHART_END_NAMESPACE | |
34 |
|
26 | |||
35 | #endif |
|
27 | #endif |
@@ -1,142 +1,142 | |||||
1 | #include "qsplineseries.h" |
|
1 | #include "qsplineseries.h" | |
2 |
|
2 | |||
3 | /*! |
|
3 | /*! | |
4 | \class QSplineSeries |
|
4 | \class QSplineSeries | |
5 | \brief Series type used to store data needed to draw a spline. |
|
5 | \brief Series type used to store data needed to draw a spline. | |
6 |
|
6 | |||
7 | QSplineSeries stores the data points along with the segment control points needed by QPainterPath to draw spline |
|
7 | QSplineSeries stores the data points along with the segment control points needed by QPainterPath to draw spline | |
8 | Control points are automatically calculated when data changes. The algorithm computes the points so that the normal spline can be drawn. |
|
8 | Control points are automatically calculated when data changes. The algorithm computes the points so that the normal spline can be drawn. | |
9 | */ |
|
9 | */ | |
10 |
|
10 | |||
11 | /*! |
|
11 | /*! | |
12 | \fn QSeriesType QSplineSeries::type() const |
|
12 | \fn QSeriesType QSplineSeries::type() const | |
13 | Returns the type of the series |
|
13 | Returns the type of the series | |
14 | */ |
|
14 | */ | |
15 |
|
15 | |||
16 | /*! |
|
16 | /*! | |
17 | \fn QSeriesType QSplineSeries::controlPoint(int index) const |
|
17 | \fn QSeriesType QSplineSeries::controlPoint(int index) const | |
18 | Returns the control point specified by \a index |
|
18 | Returns the control point specified by \a index | |
19 | */ |
|
19 | */ | |
20 |
|
20 | |||
21 | QTCOMMERCIALCHART_BEGIN_NAMESPACE |
|
21 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | |
22 |
|
22 | |||
23 | /*! |
|
23 | /*! | |
24 | Constructs empty series object which is a child of \a parent. |
|
24 | Constructs empty series object which is a child of \a parent. | |
25 | When series object is added to QChartView or QChart instance then the ownerships is transfered. |
|
25 | When series object is added to QChartView or QChart instance then the ownerships is transfered. | |
26 | */ |
|
26 | */ | |
27 |
|
27 | |||
28 | QSplineSeries::QSplineSeries(QObject *parent) : |
|
28 | QSplineSeries::QSplineSeries(QObject *parent) : | |
29 |
Q |
|
29 | QXYSeries(parent) | |
30 | { |
|
30 | { | |
31 | connect(this,SIGNAL(pointAdded(int)), this, SLOT(updateControlPoints())); |
|
31 | connect(this,SIGNAL(pointAdded(int)), this, SLOT(updateControlPoints())); | |
32 | connect(this,SIGNAL(pointRemoved(int)), this, SLOT(updateControlPoints())); |
|
32 | connect(this,SIGNAL(pointRemoved(int)), this, SLOT(updateControlPoints())); | |
33 | connect(this,SIGNAL(pointReplaced(int)), this, SLOT(updateControlPoints())); |
|
33 | connect(this,SIGNAL(pointReplaced(int)), this, SLOT(updateControlPoints())); | |
34 | } |
|
34 | } | |
35 |
|
35 | |||
36 | /*! |
|
36 | /*! | |
37 | \internal |
|
37 | \internal | |
38 | Calculates control points which are needed by QPainterPath.cubicTo function to draw the cubic Bezier cureve between two points. |
|
38 | Calculates control points which are needed by QPainterPath.cubicTo function to draw the cubic Bezier cureve between two points. | |
39 | */ |
|
39 | */ | |
40 | void QSplineSeries::calculateControlPoints() |
|
40 | void QSplineSeries::calculateControlPoints() | |
41 | { |
|
41 | { | |
42 |
|
42 | |||
43 | // Based on http://www.codeproject.com/Articles/31859/Draw-a-Smooth-Curve-through-a-Set-of-2D-Points-wit |
|
43 | // Based on http://www.codeproject.com/Articles/31859/Draw-a-Smooth-Curve-through-a-Set-of-2D-Points-wit | |
44 | // CPOL License |
|
44 | // CPOL License | |
45 |
|
45 | |||
46 | int n = m_x.size() - 1; |
|
46 | int n = m_x.size() - 1; | |
47 | if (n == 1) |
|
47 | if (n == 1) | |
48 | { // Special case: Bezier curve should be a straight line. |
|
48 | { // Special case: Bezier curve should be a straight line. | |
49 | // firstControlPoints = new Point[1]; |
|
49 | // firstControlPoints = new Point[1]; | |
50 | // 3P1 = 2P0 + P3 |
|
50 | // 3P1 = 2P0 + P3 | |
51 | m_controlPoints.append(QPointF((2 * m_x[0] + m_x[1]) / 3, (2 * m_y[0] + m_y[1]) / 3)); |
|
51 | m_controlPoints.append(QPointF((2 * m_x[0] + m_x[1]) / 3, (2 * m_y[0] + m_y[1]) / 3)); | |
52 |
|
52 | |||
53 | // P2 = 2P1 P0 |
|
53 | // P2 = 2P1 P0 | |
54 | m_controlPoints.append(QPointF(2 * m_controlPoints[0].x() - m_x[0], 2 * m_controlPoints[0].y() - m_y[0])); |
|
54 | m_controlPoints.append(QPointF(2 * m_controlPoints[0].x() - m_x[0], 2 * m_controlPoints[0].y() - m_y[0])); | |
55 | return; |
|
55 | return; | |
56 | } |
|
56 | } | |
57 |
|
57 | |||
58 | // Calculate first Bezier control points |
|
58 | // Calculate first Bezier control points | |
59 | // Right hand side vector |
|
59 | // Right hand side vector | |
60 | // Set of equations for P0 to Pn points. |
|
60 | // Set of equations for P0 to Pn points. | |
61 | // |
|
61 | // | |
62 | // | 2 1 0 0 ... 0 0 0 ... 0 0 0 | | P1_1 | | P0 + 2 * P1 | |
|
62 | // | 2 1 0 0 ... 0 0 0 ... 0 0 0 | | P1_1 | | P0 + 2 * P1 | | |
63 | // | 1 4 1 0 ... 0 0 0 ... 0 0 0 | | P1_2 | | 4 * P1 + 2 * P2 | |
|
63 | // | 1 4 1 0 ... 0 0 0 ... 0 0 0 | | P1_2 | | 4 * P1 + 2 * P2 | | |
64 | // | 0 1 4 1 ... 0 0 0 ... 0 0 0 | | P1_3 | | 4 * P2 + 2 * P3 | |
|
64 | // | 0 1 4 1 ... 0 0 0 ... 0 0 0 | | P1_3 | | 4 * P2 + 2 * P3 | | |
65 | // | . . . . . . . . . . . . | | ... | | ... | |
|
65 | // | . . . . . . . . . . . . | | ... | | ... | | |
66 | // | 0 0 0 0 ... 1 4 1 ... 0 0 0 | * | P1_i | = | 4 * P(i-1) + 2 * Pi | |
|
66 | // | 0 0 0 0 ... 1 4 1 ... 0 0 0 | * | P1_i | = | 4 * P(i-1) + 2 * Pi | | |
67 | // | . . . . . . . . . . . . | | ... | | ... | |
|
67 | // | . . . . . . . . . . . . | | ... | | ... | | |
68 | // | 0 0 0 0 0 0 0 0 ... 1 4 1 | | P1_(n-1)| | 4 * P(n-2) + 2 * P(n-1) | |
|
68 | // | 0 0 0 0 0 0 0 0 ... 1 4 1 | | P1_(n-1)| | 4 * P(n-2) + 2 * P(n-1) | | |
69 | // | 0 0 0 0 0 0 0 0 ... 0 2 7 | | P1_n | | 8 * P(n-1) + Pn | |
|
69 | // | 0 0 0 0 0 0 0 0 ... 0 2 7 | | P1_n | | 8 * P(n-1) + Pn | | |
70 | // |
|
70 | // | |
71 | QList<qreal> rhs; |
|
71 | QList<qreal> rhs; | |
72 | rhs.append(m_x[0] + 2 * m_x[1]); |
|
72 | rhs.append(m_x[0] + 2 * m_x[1]); | |
73 |
|
73 | |||
74 | // Set right hand side X values |
|
74 | // Set right hand side X values | |
75 | for (int i = 1; i < n - 1; ++i) |
|
75 | for (int i = 1; i < n - 1; ++i) | |
76 | rhs.append(4 * m_x[i] + 2 * m_x[i + 1]); |
|
76 | rhs.append(4 * m_x[i] + 2 * m_x[i + 1]); | |
77 |
|
77 | |||
78 | rhs.append((8 * m_x[n - 1] + m_x[n]) / 2.0); |
|
78 | rhs.append((8 * m_x[n - 1] + m_x[n]) / 2.0); | |
79 | // Get first control points X-values |
|
79 | // Get first control points X-values | |
80 | QList<qreal> x = getFirstControlPoints(rhs); |
|
80 | QList<qreal> x = getFirstControlPoints(rhs); | |
81 | rhs[0] = m_y[0] + 2 * m_y[1]; |
|
81 | rhs[0] = m_y[0] + 2 * m_y[1]; | |
82 |
|
82 | |||
83 | // Set right hand side Y values |
|
83 | // Set right hand side Y values | |
84 | for (int i = 1; i < n - 1; ++i) |
|
84 | for (int i = 1; i < n - 1; ++i) | |
85 | rhs[i] = 4 * m_y[i] + 2 * m_y[i + 1]; |
|
85 | rhs[i] = 4 * m_y[i] + 2 * m_y[i + 1]; | |
86 |
|
86 | |||
87 | rhs[n - 1] = (8 * m_y[n - 1] + m_y[n]) / 2.0; |
|
87 | rhs[n - 1] = (8 * m_y[n - 1] + m_y[n]) / 2.0; | |
88 | // Get first control points Y-values |
|
88 | // Get first control points Y-values | |
89 | QList<qreal> y = getFirstControlPoints(rhs); |
|
89 | QList<qreal> y = getFirstControlPoints(rhs); | |
90 |
|
90 | |||
91 | // Fill output arrays. |
|
91 | // Fill output arrays. | |
92 | for (int i = 0; i < n; ++i) |
|
92 | for (int i = 0; i < n; ++i) | |
93 | { |
|
93 | { | |
94 | // First control point |
|
94 | // First control point | |
95 | m_controlPoints.append(QPointF(x[i], y[i])); |
|
95 | m_controlPoints.append(QPointF(x[i], y[i])); | |
96 | // Second control point |
|
96 | // Second control point | |
97 | if (i < n - 1) |
|
97 | if (i < n - 1) | |
98 | m_controlPoints.append(QPointF(2 * m_x[i + 1] - x[i + 1], 2 * m_y[i + 1] - y[i + 1])); |
|
98 | m_controlPoints.append(QPointF(2 * m_x[i + 1] - x[i + 1], 2 * m_y[i + 1] - y[i + 1])); | |
99 | else |
|
99 | else | |
100 | m_controlPoints.append(QPointF((m_x[n] + x[n - 1]) / 2, (m_y[n] + y[n - 1]) / 2)); |
|
100 | m_controlPoints.append(QPointF((m_x[n] + x[n - 1]) / 2, (m_y[n] + y[n - 1]) / 2)); | |
101 | } |
|
101 | } | |
102 | } |
|
102 | } | |
103 |
|
103 | |||
104 | /*! |
|
104 | /*! | |
105 | \internal |
|
105 | \internal | |
106 | */ |
|
106 | */ | |
107 | QList<qreal> QSplineSeries::getFirstControlPoints(QList<qreal> rhs) |
|
107 | QList<qreal> QSplineSeries::getFirstControlPoints(QList<qreal> rhs) | |
108 | { |
|
108 | { | |
109 | QList<qreal> x; // Solution vector. |
|
109 | QList<qreal> x; // Solution vector. | |
110 | QList<qreal> tmp; // Temp workspace. |
|
110 | QList<qreal> tmp; // Temp workspace. | |
111 |
|
111 | |||
112 | qreal b = 2.0; |
|
112 | qreal b = 2.0; | |
113 | x.append(rhs[0] / b); |
|
113 | x.append(rhs[0] / b); | |
114 | tmp.append(0); |
|
114 | tmp.append(0); | |
115 | for (int i = 1; i < rhs.size(); i++) // Decomposition and forward substitution. |
|
115 | for (int i = 1; i < rhs.size(); i++) // Decomposition and forward substitution. | |
116 | { |
|
116 | { | |
117 | tmp.append(1 / b); |
|
117 | tmp.append(1 / b); | |
118 | b = (i < rhs.size() - 1 ? 4.0 : 3.5) - tmp[i]; |
|
118 | b = (i < rhs.size() - 1 ? 4.0 : 3.5) - tmp[i]; | |
119 | x.append((rhs[i] - x[i - 1]) / b); |
|
119 | x.append((rhs[i] - x[i - 1]) / b); | |
120 | } |
|
120 | } | |
121 | for (int i = 1; i < rhs.size(); i++) |
|
121 | for (int i = 1; i < rhs.size(); i++) | |
122 | x[rhs.size() - i - 1] -= tmp[rhs.size() - i] * x[rhs.size() - i]; // Backsubstitution. |
|
122 | x[rhs.size() - i - 1] -= tmp[rhs.size() - i] * x[rhs.size() - i]; // Backsubstitution. | |
123 |
|
123 | |||
124 | return x; |
|
124 | return x; | |
125 | } |
|
125 | } | |
126 |
|
126 | |||
127 | /*! |
|
127 | /*! | |
128 | \internal |
|
128 | \internal | |
129 | Updates the control points, besed on currently avaiable knots. |
|
129 | Updates the control points, besed on currently avaiable knots. | |
130 | */ |
|
130 | */ | |
131 | void QSplineSeries::updateControlPoints() |
|
131 | void QSplineSeries::updateControlPoints() | |
132 | { |
|
132 | { | |
133 | if(m_x.size() > 1) |
|
133 | if(m_x.size() > 1) | |
134 | { |
|
134 | { | |
135 | m_controlPoints.clear(); |
|
135 | m_controlPoints.clear(); | |
136 | calculateControlPoints(); |
|
136 | calculateControlPoints(); | |
137 | } |
|
137 | } | |
138 | } |
|
138 | } | |
139 |
|
139 | |||
140 | #include "moc_qsplineseries.cpp" |
|
140 | #include "moc_qsplineseries.cpp" | |
141 |
|
141 | |||
142 | QTCOMMERCIALCHART_END_NAMESPACE |
|
142 | QTCOMMERCIALCHART_END_NAMESPACE |
@@ -1,42 +1,43 | |||||
1 | #ifndef QSPLINESERIES_H |
|
1 | #ifndef QSPLINESERIES_H | |
2 | #define QSPLINESERIES_H |
|
2 | #define QSPLINESERIES_H | |
3 |
|
3 | |||
4 | #include "qchartglobal.h" |
|
4 | #include "qchartglobal.h" | |
5 | #include <QtGlobal> |
|
5 | #include <QtGlobal> | |
6 |
#include "q |
|
6 | #include "qxyseries.h" | |
7 | #include <QList> |
|
7 | #include <QList> | |
8 | #include <QPointF> |
|
8 | #include <QPointF> | |
9 |
|
9 | |||
10 | QTCOMMERCIALCHART_BEGIN_NAMESPACE |
|
10 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | |
11 |
|
11 | |||
12 |
class QSplineSeries : public Q |
|
12 | class QTCOMMERCIALCHART_EXPORT QSplineSeries : public QXYSeries | |
13 | { |
|
13 | { | |
14 | Q_OBJECT |
|
14 | Q_OBJECT | |
15 |
|
|
15 | public: | |
16 |
|
16 | |||
17 | QSplineSeries(QObject *parent = 0); |
|
17 | QSplineSeries(QObject *parent = 0); | |
18 |
QSeriesType type() const { |
|
18 | QSeriesType type() const {return QSeries::SeriesTypeSpline;} | |
19 |
|
19 | |||
20 | // int count() const { return m_x.size(); } |
|
20 | // int count() const { return m_x.size(); } | |
21 |
QPointF controlPoint(int index) const { |
|
21 | QPointF controlPoint(int index) const {return m_controlPoints[index];} | |
22 |
|
22 | |||
23 | // TODO: allow the user to set custom control points |
|
23 | // TODO: allow the user to set custom control points | |
24 | // void setCustomControlPoints(QList<QPointsF> controlPoints); |
|
24 | // void setCustomControlPoints(QList<QPointsF> controlPoints); | |
25 | // bool calculateControlPointsAutomatically(); |
|
25 | // bool calculateControlPointsAutomatically(); | |
26 | // void setCalculateControlPointsAutomatically(); |
|
26 | // void setCalculateControlPointsAutomatically(); | |
27 |
|
27 | |||
28 | private: |
|
28 | ||
|
29 | private: | |||
29 | void calculateControlPoints(); |
|
30 | void calculateControlPoints(); | |
30 | QList<qreal> getFirstControlPoints(QList<qreal> rhs); |
|
31 | QList<qreal> getFirstControlPoints(QList<qreal> rhs); | |
31 |
|
32 | |||
32 |
|
|
33 | private slots: | |
33 | void updateControlPoints(); |
|
34 | void updateControlPoints(); | |
34 |
|
35 | |||
35 |
|
|
36 | private: | |
36 | QList<QPointF> m_controlPoints; |
|
37 | QList<QPointF> m_controlPoints; | |
37 |
|
38 | |||
38 | }; |
|
39 | }; | |
39 |
|
40 | |||
40 | QTCOMMERCIALCHART_END_NAMESPACE |
|
41 | QTCOMMERCIALCHART_END_NAMESPACE | |
41 |
|
42 | |||
42 | #endif // QSPLINESERIES_H |
|
43 | #endif // QSPLINESERIES_H |
@@ -1,189 +1,213 | |||||
1 | #include "qxyseries.h" |
|
1 | #include "qxyseries.h" | |
2 |
|
2 | |||
3 | QTCOMMERCIALCHART_BEGIN_NAMESPACE |
|
3 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | |
4 |
|
4 | |||
5 | /*! |
|
5 | /*! | |
6 | \class QXYSeries |
|
6 | \class QXYSeries | |
7 | \brief The QXYSeries class is used for making line charts. |
|
7 | \brief The QXYSeries class is used for making line charts. | |
8 |
|
8 | |||
9 | \mainclass |
|
9 | \mainclass | |
10 |
|
10 | |||
11 | A line chart is used to show information as a series of data points |
|
11 | A line chart is used to show information as a series of data points | |
12 | connected by straight lines. |
|
12 | connected by straight lines. | |
13 |
|
13 | |||
14 | \image linechart.png |
|
14 | \image linechart.png | |
15 |
|
15 | |||
16 | Creating basic line chart is simple: |
|
16 | Creating basic line chart is simple: | |
17 | \code |
|
17 | \code | |
18 | QXYSeries* series = new QXYSeries(); |
|
18 | QXYSeries* series = new QXYSeries(); | |
19 | series->add(0, 6); |
|
19 | series->add(0, 6); | |
20 | series->add(2, 4); |
|
20 | series->add(2, 4); | |
21 | ... |
|
21 | ... | |
22 | chartView->addSeries(series); |
|
22 | chartView->addSeries(series); | |
23 | \endcode |
|
23 | \endcode | |
24 | */ |
|
24 | */ | |
25 |
|
25 | |||
26 | /*! |
|
26 | /*! | |
27 | \fn virtual QSeriesType QXYSeries::type() const |
|
27 | \fn virtual QSeriesType QXYSeries::type() const | |
28 | \brief Returns type of series. |
|
28 | \brief Returns type of series. | |
29 | \sa QSeries, QSeriesType |
|
29 | \sa QSeries, QSeriesType | |
30 | */ |
|
30 | */ | |
31 |
|
31 | |||
32 | /*! |
|
32 | /*! | |
33 | \fn QPen QXYSeries::pen() const |
|
33 | \fn QPen QXYSeries::pen() const | |
34 | \brief Returns the pen used to draw line for this series. |
|
34 | \brief Returns the pen used to draw line for this series. | |
35 | \sa setPen() |
|
35 | \sa setPen() | |
36 | */ |
|
36 | */ | |
37 |
|
37 | |||
38 | /*! |
|
38 | /*! | |
39 | \fn bool QXYSeries::pointsVisible() const |
|
39 | \fn bool QXYSeries::pointsVisible() const | |
40 | \brief Returns if the points are drawn for this series. |
|
40 | \brief Returns if the points are drawn for this series. | |
41 | \sa setPointsVisible() |
|
41 | \sa setPointsVisible() | |
42 | */ |
|
42 | */ | |
43 |
|
43 | |||
44 |
|
44 | |||
45 | /*! |
|
45 | /*! | |
46 | \fn void QXYSeries::pointReplaced(int index) |
|
46 | \fn void QXYSeries::pointReplaced(int index) | |
47 | \brief \internal \a index |
|
47 | \brief \internal \a index | |
48 | */ |
|
48 | */ | |
49 |
|
49 | |||
50 | /*! |
|
50 | /*! | |
51 | \fn void QXYSeries::pointAdded(int index) |
|
51 | \fn void QXYSeries::pointAdded(int index) | |
52 | \brief \internal \a index |
|
52 | \brief \internal \a index | |
53 | */ |
|
53 | */ | |
54 |
|
54 | |||
55 | /*! |
|
55 | /*! | |
56 | \fn void QXYSeries::pointRemoved(int index) |
|
56 | \fn void QXYSeries::pointRemoved(int index) | |
57 | \brief \internal \a index |
|
57 | \brief \internal \a index | |
58 | */ |
|
58 | */ | |
59 |
|
59 | |||
60 | /*! |
|
60 | /*! | |
61 | \fn void QXYSeries::updated() |
|
61 | \fn void QXYSeries::updated() | |
62 | \brief \internal |
|
62 | \brief \internal | |
63 | */ |
|
63 | */ | |
64 |
|
64 | |||
65 | /*! |
|
65 | /*! | |
66 | Constructs empty series object which is a child of \a parent. |
|
66 | Constructs empty series object which is a child of \a parent. | |
67 | When series object is added to QChartView or QChart instance ownerships is transfered. |
|
67 | When series object is added to QChartView or QChart instance ownerships is transfered. | |
68 | */ |
|
68 | */ | |
69 | QXYSeries::QXYSeries(QObject* parent):QSeries(parent) |
|
69 | QXYSeries::QXYSeries(QObject* parent):QSeries(parent), | |
|
70 | m_pointsVisible(false) | |||
70 | { |
|
71 | { | |
71 | } |
|
72 | } | |
72 | /*! |
|
73 | /*! | |
73 | Destroys the object. Series added to QChartView or QChart instances are owned by those, |
|
74 | Destroys the object. Series added to QChartView or QChart instances are owned by those, | |
74 | and are deleted when mentioned object are destroyed. |
|
75 | and are deleted when mentioned object are destroyed. | |
75 | */ |
|
76 | */ | |
76 | QXYSeries::~QXYSeries() |
|
77 | QXYSeries::~QXYSeries() | |
77 | { |
|
78 | { | |
78 | } |
|
79 | } | |
79 |
|
80 | |||
80 | /*! |
|
81 | /*! | |
81 | Adds data point \a x \a y to the series. Points are connected with lines on the chart. |
|
82 | Adds data point \a x \a y to the series. Points are connected with lines on the chart. | |
82 | */ |
|
83 | */ | |
83 | void QXYSeries::add(qreal x,qreal y) |
|
84 | void QXYSeries::add(qreal x,qreal y) | |
84 | { |
|
85 | { | |
85 | Q_ASSERT(m_x.size() == m_y.size()); |
|
86 | Q_ASSERT(m_x.size() == m_y.size()); | |
86 | m_x<<x; |
|
87 | m_x<<x; | |
87 | m_y<<y; |
|
88 | m_y<<y; | |
88 | emit pointAdded(m_x.size()-1); |
|
89 | emit pointAdded(m_x.size()-1); | |
89 | } |
|
90 | } | |
90 |
|
91 | |||
91 | /*! |
|
92 | /*! | |
92 | This is an overloaded function. |
|
93 | This is an overloaded function. | |
93 | Adds data \a point to the series. Points are connected with lines on the chart. |
|
94 | Adds data \a point to the series. Points are connected with lines on the chart. | |
94 | */ |
|
95 | */ | |
95 | void QXYSeries::add(const QPointF& point) |
|
96 | void QXYSeries::add(const QPointF& point) | |
96 | { |
|
97 | { | |
97 | add(point.x(),point.y()); |
|
98 | add(point.x(),point.y()); | |
98 | } |
|
99 | } | |
99 |
|
100 | |||
100 | /*! |
|
101 | /*! | |
101 | Modifies \a y value for given \a x a value. |
|
102 | Modifies \a y value for given \a x a value. | |
102 | */ |
|
103 | */ | |
103 | void QXYSeries::replace(qreal x,qreal y) |
|
104 | void QXYSeries::replace(qreal x,qreal y) | |
104 | { |
|
105 | { | |
105 | int index = m_x.indexOf(x); |
|
106 | int index = m_x.indexOf(x); | |
106 | m_x[index]=x; |
|
107 | m_x[index]=x; | |
107 | m_y[index]=y; |
|
108 | m_y[index]=y; | |
108 | emit pointReplaced(index); |
|
109 | emit pointReplaced(index); | |
109 | } |
|
110 | } | |
110 |
|
111 | |||
111 | /*! |
|
112 | /*! | |
112 | This is an overloaded function. |
|
113 | This is an overloaded function. | |
113 | Replaces current y value of for given \a point x value with \a point y value. |
|
114 | Replaces current y value of for given \a point x value with \a point y value. | |
114 | */ |
|
115 | */ | |
115 | void QXYSeries::replace(const QPointF& point) |
|
116 | void QXYSeries::replace(const QPointF& point) | |
116 | { |
|
117 | { | |
117 | replace(point.x(),point.y()); |
|
118 | replace(point.x(),point.y()); | |
118 | } |
|
119 | } | |
119 |
|
120 | |||
120 | /*! |
|
121 | /*! | |
121 | Removes current \a x and y value. |
|
122 | Removes current \a x and y value. | |
122 | */ |
|
123 | */ | |
123 | void QXYSeries::remove(qreal x) |
|
124 | void QXYSeries::remove(qreal x) | |
124 | { |
|
125 | { | |
125 | int index = m_x.indexOf(x); |
|
126 | int index = m_x.indexOf(x); | |
126 | emit pointRemoved(index); |
|
127 | emit pointRemoved(index); | |
127 | m_x.remove(index); |
|
128 | m_x.remove(index); | |
128 | m_y.remove(index); |
|
129 | m_y.remove(index); | |
129 | } |
|
130 | } | |
130 |
|
131 | |||
131 | /*! |
|
132 | /*! | |
132 | Removes current \a point x value. Note \a point y value is ignored. |
|
133 | Removes current \a point x value. Note \a point y value is ignored. | |
133 | */ |
|
134 | */ | |
134 | void QXYSeries::remove(const QPointF& point) |
|
135 | void QXYSeries::remove(const QPointF& point) | |
135 | { |
|
136 | { | |
136 | remove(point.x()); |
|
137 | remove(point.x()); | |
137 | } |
|
138 | } | |
138 |
|
139 | |||
139 | /*! |
|
140 | /*! | |
140 | Clears all the data. |
|
141 | Clears all the data. | |
141 | */ |
|
142 | */ | |
142 | void QXYSeries::clear() |
|
143 | void QXYSeries::clear() | |
143 | { |
|
144 | { | |
144 | m_x.clear(); |
|
145 | m_x.clear(); | |
145 | m_y.clear(); |
|
146 | m_y.clear(); | |
146 | } |
|
147 | } | |
147 |
|
148 | |||
148 | /*! |
|
149 | /*! | |
149 | \internal \a pos |
|
150 | \internal \a pos | |
150 | */ |
|
151 | */ | |
151 | qreal QXYSeries::x(int pos) const |
|
152 | qreal QXYSeries::x(int pos) const | |
152 | { |
|
153 | { | |
153 | return m_x.at(pos); |
|
154 | return m_x.at(pos); | |
154 | } |
|
155 | } | |
155 |
|
156 | |||
156 | /*! |
|
157 | /*! | |
157 | \internal \a pos |
|
158 | \internal \a pos | |
158 | */ |
|
159 | */ | |
159 | qreal QXYSeries::y(int pos) const |
|
160 | qreal QXYSeries::y(int pos) const | |
160 | { |
|
161 | { | |
161 | return m_y.at(pos); |
|
162 | return m_y.at(pos); | |
162 | } |
|
163 | } | |
163 |
|
164 | |||
164 | /*! |
|
165 | /*! | |
165 | Returns number of data points within series. |
|
166 | Returns number of data points within series. | |
166 | */ |
|
167 | */ | |
167 | int QXYSeries::count() const |
|
168 | int QXYSeries::count() const | |
168 | { |
|
169 | { | |
169 | Q_ASSERT(m_x.size() == m_y.size()); |
|
170 | Q_ASSERT(m_x.size() == m_y.size()); | |
170 |
|
171 | |||
171 | return m_x.size(); |
|
172 | return m_x.size(); | |
172 |
|
173 | |||
173 | } |
|
174 | } | |
174 |
|
175 | |||
175 | /*! |
|
176 | /*! | |
|
177 | Sets \a pen used for drawing given series.. | |||
|
178 | */ | |||
|
179 | void QXYSeries::setPen(const QPen& pen) | |||
|
180 | { | |||
|
181 | if(pen!=m_pen){ | |||
|
182 | m_pen=pen; | |||
|
183 | emit updated(); | |||
|
184 | } | |||
|
185 | } | |||
|
186 | ||||
|
187 | /*! | |||
|
188 | Sets if data points are \a visible and should be drawn on line. | |||
|
189 | */ | |||
|
190 | void QXYSeries::setPointsVisible(bool visible) | |||
|
191 | { | |||
|
192 | if(m_pointsVisible!=visible){ | |||
|
193 | m_pointsVisible=visible; | |||
|
194 | emit updated(); | |||
|
195 | } | |||
|
196 | } | |||
|
197 | ||||
|
198 | ||||
|
199 | /*! | |||
176 | Stream operator for adding a data \a point to the series. |
|
200 | Stream operator for adding a data \a point to the series. | |
177 | \sa add() |
|
201 | \sa add() | |
178 | */ |
|
202 | */ | |
179 |
|
203 | |||
180 | QXYSeries& QXYSeries::operator<< (const QPointF &point) |
|
204 | QXYSeries& QXYSeries::operator<< (const QPointF &point) | |
181 | { |
|
205 | { | |
182 | add(point); |
|
206 | add(point); | |
183 | return *this; |
|
207 | return *this; | |
184 | } |
|
208 | } | |
185 |
|
209 | |||
186 |
|
210 | |||
187 | #include "moc_qxyseries.cpp" |
|
211 | #include "moc_qxyseries.cpp" | |
188 |
|
212 | |||
189 | QTCOMMERCIALCHART_END_NAMESPACE |
|
213 | QTCOMMERCIALCHART_END_NAMESPACE |
@@ -1,49 +1,58 | |||||
1 | #ifndef QXYSERIES_H_ |
|
1 | #ifndef QXYSERIES_H_ | |
2 | #define QXYSERIES_H_ |
|
2 | #define QXYSERIES_H_ | |
3 |
|
3 | |||
4 | #include "qchartglobal.h" |
|
4 | #include "qchartglobal.h" | |
5 | #include "qseries.h" |
|
5 | #include "qseries.h" | |
6 | #include <QDebug> |
|
6 | #include <QDebug> | |
7 | #include <QPen> |
|
7 | #include <QPen> | |
8 | #include <QBrush> |
|
8 | #include <QBrush> | |
9 |
|
9 | |||
10 | QTCOMMERCIALCHART_BEGIN_NAMESPACE |
|
10 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | |
11 |
|
11 | |||
12 | class QTCOMMERCIALCHART_EXPORT QXYSeries : public QSeries |
|
12 | class QTCOMMERCIALCHART_EXPORT QXYSeries : public QSeries | |
13 | { |
|
13 | { | |
14 | Q_OBJECT |
|
14 | Q_OBJECT | |
15 | public: |
|
15 | public: | |
16 | QXYSeries(QObject* parent=0); |
|
16 | QXYSeries(QObject* parent=0); | |
17 | virtual ~QXYSeries(); |
|
17 | virtual ~QXYSeries(); | |
18 |
|
18 | |||
19 | public: |
|
19 | public: | |
20 | void add(qreal x, qreal y); |
|
20 | void add(qreal x, qreal y); | |
21 | void add(const QPointF& point); |
|
21 | void add(const QPointF& point); | |
22 | void replace(qreal x,qreal y); |
|
22 | void replace(qreal x,qreal y); | |
23 | void replace(const QPointF& point); |
|
23 | void replace(const QPointF& point); | |
24 | void remove(qreal x); |
|
24 | void remove(qreal x); | |
25 | void remove(const QPointF& point); |
|
25 | void remove(const QPointF& point); | |
26 | void clear(); |
|
26 | void clear(); | |
27 |
|
27 | |||
28 | int count() const; |
|
28 | int count() const; | |
29 | qreal x(int pos) const; |
|
29 | qreal x(int pos) const; | |
30 | qreal y(int pos) const; |
|
30 | qreal y(int pos) const; | |
31 |
|
31 | |||
32 | QXYSeries& operator << (const QPointF &point); |
|
32 | QXYSeries& operator << (const QPointF &point); | |
33 |
|
33 | |||
|
34 | void setPen(const QPen& pen); | |||
|
35 | QPen pen() const {return m_pen;} | |||
|
36 | ||||
|
37 | void setPointsVisible(bool visible); | |||
|
38 | bool pointsVisible() const {return m_pointsVisible;} | |||
|
39 | ||||
34 | signals: |
|
40 | signals: | |
35 | void updated(); |
|
41 | void updated(); | |
36 | void pointReplaced(int index); |
|
42 | void pointReplaced(int index); | |
37 | void pointRemoved(int index); |
|
43 | void pointRemoved(int index); | |
38 | void pointAdded(int index); |
|
44 | void pointAdded(int index); | |
39 |
|
45 | |||
40 |
|
46 | |||
41 | protected: |
|
47 | protected: | |
42 | QVector<qreal> m_x; |
|
48 | QVector<qreal> m_x; | |
43 | QVector<qreal> m_y; |
|
49 | QVector<qreal> m_y; | |
44 |
|
50 | |||
|
51 | QPen m_pen; | |||
|
52 | bool m_pointsVisible; | |||
|
53 | ||||
45 | }; |
|
54 | }; | |
46 |
|
55 | |||
47 | QTCOMMERCIALCHART_END_NAMESPACE |
|
56 | QTCOMMERCIALCHART_END_NAMESPACE | |
48 |
|
57 | |||
49 | #endif |
|
58 | #endif |
General Comments 0
You need to be logged in to leave comments.
Login now