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Limit code presented on qlineseries docs
Michal Klocek -
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1 1 #include "qlineseries.h"
2 2
3 3 QTCOMMERCIALCHART_BEGIN_NAMESPACE
4 4
5 5 /*!
6 6 \class QLineSeries
7 7 \brief The QLineSeries class is used for making line charts.
8 8
9 9 \mainclass
10 10
11 11 A line chart is used to show information as a series of data points
12 12 connected by straight lines.
13 13
14 14 \image linechart.png
15 15
16 To create line charts, users need to first QLineSeries object.
17
18 \snippet ../example/linechart/main.cpp 1
19
20 Populate with the data
21
22 \snippet ../example/linechart/main.cpp 2
23
24 Add created series objects to QChartView or QChart instance.
25
26 \snippet ../example/linechart/main.cpp 3
27
16 Creating basic line chart is simple:
17 \code
18 QLineSeries* series = new QLineSeries();
19 series->add(0, 6);
20 series->add(2, 4);
21 ...
22 chartView->addSeries(series);
23 \endcode
28 24 */
29 25
30 26 /*!
31 27 \fn virtual QSeriesType QLineSeries::type() const
32 28 \brief Returns type of series.
33 29 \sa QSeries, QSeriesType
34 30 */
35 31
36 32 /*!
37 33 \fn QPen QLineSeries::pen() const
38 34 \brief Returns the pen used to draw line for this series.
39 35 \sa setPen()
40 36 */
41 37
42 38 /*!
43 39 \fn bool QLineSeries::pointsVisible() const
44 40 \brief Returns if the points are drawn for this series.
45 41 \sa setPointsVisible()
46 42 */
47 43
48 44
49 45 /*!
50 46 \fn void QLineSeries::changed(int index)
51 47 \brief \internal \a index
52 48 */
53 49
54 50 /*!
55 51 Constructs empty series object which is a child of \a parent.
56 52 When series object is added to QChartView or QChart instance ownerships is transfered.
57 53 */
58 54 QLineSeries::QLineSeries(QObject* parent):QSeries(parent),
59 55 m_pointsVisible(false)
60 56 {
61 57 }
62 58 /*!
63 59 Destroys the object. Series added to QChartView or QChart instances are owned by those,
64 60 and are deleted when mentioned object are destroyed.
65 61 */
66 62 QLineSeries::~QLineSeries()
67 63 {
68 64 }
69 65
70 66 /*!
71 67 Adds data point \a x \a y to the series. Points are connected with lines on the chart.
72 68 */
73 69 void QLineSeries::add(qreal x,qreal y)
74 70 {
75 71 m_x<<x;
76 72 m_y<<y;
77 73 }
78 74
79 75 /*!
80 76 This is an overloaded function.
81 77 Adds data \a point to the series. Points are connected with lines on the chart.
82 78 */
83 79 void QLineSeries::add(const QPointF& point)
84 80 {
85 81 m_x<<point.x();
86 82 m_y<<point.y();
87 83 }
88 84
89 85 /*!
90 86 Modifies \a y value for given \a x a value.
91 87 */
92 88 void QLineSeries::replace(qreal x,qreal y)
93 89 {
94 90 int index = m_x.indexOf(x);
95 91 m_x[index]=x;
96 92 m_y[index]=y;
97 93 emit changed(index);
98 94 }
99 95
100 96 /*!
101 97 This is an overloaded function.
102 98 Replaces current y value of for given \a point x value with \a point y value.
103 99 */
104 100 void QLineSeries::replace(const QPointF& point)
105 101 {
106 102 int index = m_x.indexOf(point.x());
107 103 m_x[index]=point.x();
108 104 m_y[index]=point.y();
109 105 emit changed(index);
110 106 }
111 107
112 108 /*!
113 109 Removes current \a x and y value.
114 110 */
115 111 void QLineSeries::remove(qreal x)
116 112 {
117 113
118 114 }
119 115
120 116 /*!
121 117 Removes current \a point x value. Note \a point y value is ignored.
122 118 */
123 119 void QLineSeries::remove(const QPointF& point)
124 120 {
125 121
126 122 }
127 123
128 124 /*!
129 125 Clears all the data.
130 126 */
131 127 void QLineSeries::clear()
132 128 {
133 129 m_x.clear();
134 130 m_y.clear();
135 131 }
136 132
137 133 /*!
138 134 \internal \a pos
139 135 */
140 136 qreal QLineSeries::x(int pos) const
141 137 {
142 138 return m_x.at(pos);
143 139 }
144 140
145 141 /*!
146 142 \internal \a pos
147 143 */
148 144 qreal QLineSeries::y(int pos) const
149 145 {
150 146 return m_y.at(pos);
151 147 }
152 148
153 149 /*!
154 150 Returns number of data points within series.
155 151 */
156 152 int QLineSeries::count() const
157 153 {
158 154 Q_ASSERT(m_x.size() == m_y.size());
159 155
160 156 return m_x.size();
161 157
162 158 }
163 159
164 160 /*!
165 161 Sets \a pen used for drawing given series..
166 162 */
167 163 void QLineSeries::setPen(const QPen& pen)
168 164 {
169 165 m_pen=pen;
170 166 }
171 167
172 168 /*!
173 169 Sets if data points are \a visible and should be drawn on line.
174 170 */
175 171 void QLineSeries::setPointsVisible(bool visible)
176 172 {
177 173 m_pointsVisible=visible;
178 174 }
179 175
180 176 QDebug operator<< (QDebug debug, const QLineSeries series)
181 177 {
182 178 Q_ASSERT(series.m_x.size() == series.m_y.size());
183 179
184 180 int size = series.m_x.size();
185 181
186 182 for (int i=0;i<size;i++) {
187 183 debug.nospace() << "(" << series.m_x.at(i) << ','<< series.m_y.at(i) << ") ";
188 184 }
189 185 return debug.space();
190 186 }
191 187
192 188
193 189 #include "moc_qlineseries.cpp"
194 190
195 191 QTCOMMERCIALCHART_END_NAMESPACE
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