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Clone from http://code.qt.io/qt/qtcharts.git

Fixes and improvments to series API...
Michal Klocek -
r1057:d444309c9f1b
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@@ -189,9 +189,10 QChart* ThemeWidget::createAreaChart() const
189 QLineSeries *upperSeries = new QLineSeries(chart);
189 QLineSeries *upperSeries = new QLineSeries(chart);
190 for (int j(0); j < m_dataTable[i].count(); j++) {
190 for (int j(0); j < m_dataTable[i].count(); j++) {
191 Data data = m_dataTable[i].at(j);
191 Data data = m_dataTable[i].at(j);
192 if (lowerSeries)
192 if (lowerSeries){
193 upperSeries->append(QPointF(j, lowerSeries->y(i) + data.first.y()));
193 const QList<QPointF>& points = lowerSeries->points();
194 else
194 upperSeries->append(QPointF(j, points[i].y() + data.first.y()));
195 }else
195 upperSeries->append(QPointF(j, data.first.y()));
196 upperSeries->append(QPointF(j, data.first.y()));
196 }
197 }
197 QAreaSeries *area = new QAreaSeries(upperSeries, lowerSeries);
198 QAreaSeries *area = new QAreaSeries(upperSeries, lowerSeries);
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@@ -57,9 +57,10 Chart::~Chart()
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;
60 m_y = qrand() % 5 - 2.5;
61 m_y = qrand() % 5 - 2.5;
61 m_series->append(m_x, m_y);
62 m_series->append(m_x, m_y);
62 if (m_x >= 10)
63 if (m_x >= 10)
63 m_series->remove(m_x - 10);
64 m_series->remove(m_x - 10,y);
64 scrollRight();
65 scrollRight();
65 }
66 }
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@@ -231,20 +231,25 void QAreaSeriesPrivate::scaleDomain(Domain& domain)
231 QLineSeries* upperSeries = q->upperSeries();
231 QLineSeries* upperSeries = q->upperSeries();
232 QLineSeries* lowerSeries = q->lowerSeries();
232 QLineSeries* lowerSeries = q->lowerSeries();
233
233
234 for (int i = 0; i < upperSeries->count(); i++)
234 const QList<QPointF>& points = upperSeries->points();
235
236 for (int i = 0; i < points.count(); i++)
235 {
237 {
236 qreal x = upperSeries->x(i);
238 qreal x = points[i].x();
237 qreal y = upperSeries->y(i);
239 qreal y = points[i].y();
238 minX = qMin(minX, x);
240 minX = qMin(minX, x);
239 minY = qMin(minY, y);
241 minY = qMin(minY, y);
240 maxX = qMax(maxX, x);
242 maxX = qMax(maxX, x);
241 maxY = qMax(maxY, y);
243 maxY = qMax(maxY, y);
242 }
244 }
243 if(lowerSeries) {
245 if(lowerSeries) {
244 for (int i = 0; i < lowerSeries->count(); i++)
246
247 const QList<QPointF>& points = upperSeries->points();
248
249 for (int i = 0; i < points.count(); i++)
245 {
250 {
246 qreal x = lowerSeries->x(i);
251 qreal x = points[i].x();
247 qreal y = lowerSeries->y(i);
252 qreal y = points[i].y();
248 minX = qMin(minX, x);
253 minX = qMin(minX, x);
249 minY = qMin(minY, y);
254 minY = qMin(minY, y);
250 maxX = qMax(maxX, x);
255 maxX = qMax(maxX, x);
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@@ -98,7 +98,7 void ScatterChartItem::deletePoints(int count)
98
98
99 void ScatterChartItem::markerSelected(Marker *marker)
99 void ScatterChartItem::markerSelected(Marker *marker)
100 {
100 {
101 emit XYChartItem::clicked(QPointF(m_series->x(marker->index()), m_series->y(marker->index())));
101 emit XYChartItem::clicked(marker->point());
102 }
102 }
103
103
104 void ScatterChartItem::setLayout(QVector<QPointF>& points)
104 void ScatterChartItem::setLayout(QVector<QPointF>& points)
@@ -126,7 +126,7 void ScatterChartItem::setLayout(QVector<QPointF>& points)
126 Marker* item = static_cast<Marker*>(items.at(i));
126 Marker* item = static_cast<Marker*>(items.at(i));
127 const QPointF& point = points.at(i);
127 const QPointF& point = points.at(i);
128 const QRectF& rect = item->boundingRect();
128 const QRectF& rect = item->boundingRect();
129 item->setIndex(i);
129 item->setPoint(point);
130 item->setPos(point.x()-rect.width()/2,point.y()-rect.height()/2);
130 item->setPos(point.x()-rect.width()/2,point.y()-rect.height()/2);
131 if(!clipRect().contains(point)) {
131 if(!clipRect().contains(point)) {
132 item->setVisible(false);
132 item->setVisible(false);
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@@ -72,7 +72,7 class Marker: public QAbstractGraphicsShapeItem
72
72
73 public:
73 public:
74
74
75 Marker(QAbstractGraphicsShapeItem *item , ScatterChartItem *parent) : QAbstractGraphicsShapeItem(0) ,m_item(item), m_parent(parent), m_index(-1)
75 Marker(QAbstractGraphicsShapeItem *item , ScatterChartItem *parent) : QAbstractGraphicsShapeItem(0) ,m_item(item), m_parent(parent)
76 {
76 {
77 }
77 }
78
78
@@ -81,14 +81,14 public:
81 delete m_item;
81 delete m_item;
82 }
82 }
83
83
84 void setIndex(int index)
84 void setPoint(const QPointF& point)
85 {
85 {
86 m_index=index;
86 m_point=point;
87 }
87 }
88
88
89 int index() const
89 QPointF point() const
90 {
90 {
91 return m_index;
91 return m_point;
92 }
92 }
93
93
94 QPainterPath shape() const
94 QPainterPath shape() const
@@ -132,7 +132,7 protected:
132 private:
132 private:
133 QAbstractGraphicsShapeItem* m_item;
133 QAbstractGraphicsShapeItem* m_item;
134 ScatterChartItem* m_parent;
134 ScatterChartItem* m_parent;
135 int m_index;
135 QPointF m_point;
136 };
136 };
137
137
138 QTCOMMERCIALCHART_END_NAMESPACE
138 QTCOMMERCIALCHART_END_NAMESPACE
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@@ -105,15 +105,15 QSplineSeriesPrivate::QSplineSeriesPrivate(QSplineSeries* q):QLineSeriesPrivate(
105 void QSplineSeriesPrivate::calculateControlPoints()
105 void QSplineSeriesPrivate::calculateControlPoints()
106 {
106 {
107
107
108 Q_Q(QSplineSeries);
108 int n = m_points.count() - 1;
109
110 int n = q->count() - 1;
111
109
112 if (n == 1)
110 if (n == 1)
113 {
111 {
114 //for n==1
112 //for n==1
115 m_controlPoints.append(QPointF((2 * q->x(0) + q->x(1)) / 3, (2 * q->y(0) + q->y(1)) / 3));
113 m_controlPoints[0].setX((2 * m_points[0].x() + m_points[1].x()) / 3);
116 m_controlPoints.append(QPointF(2 * m_controlPoints[0].x() - q->x(0), 2 * m_controlPoints[0].y() - q->y(0)));
114 m_controlPoints[0].setY((2 * m_points[0].y() + m_points[1].y()) / 3);
115 m_controlPoints[1].setX(2 * m_controlPoints[0].x() - m_points[0].x());
116 m_controlPoints[1].setY(2 * m_controlPoints[0].y() - m_points[0].y());
117 return;
117 return;
118 }
118 }
119
119
@@ -130,53 +130,68 void QSplineSeriesPrivate::calculateControlPoints()
130 // | 0 0 0 0 0 0 0 0 ... 1 4 1 | | P1_(n-1)| | 4 * P(n-2) + 2 * P(n-1) |
130 // | 0 0 0 0 0 0 0 0 ... 1 4 1 | | P1_(n-1)| | 4 * P(n-2) + 2 * P(n-1) |
131 // | 0 0 0 0 0 0 0 0 ... 0 2 7 | | P1_n | | 8 * P(n-1) + Pn |
131 // | 0 0 0 0 0 0 0 0 ... 0 2 7 | | P1_n | | 8 * P(n-1) + Pn |
132 //
132 //
133 QList<qreal> points;
133 QVector<qreal> vector;
134 vector.resize(n);
134
135
135 points.append(q->x(0) + 2 * q->x(1));
136 vector[0] = m_points[0].x() + 2 * m_points[1].x();
136
137
137
138
138 for (int i = 1; i < n - 1; ++i)
139 for (int i = 1; i < n - 1; ++i){
139 points.append(4 * q->x(i) + 2 * q->x(i + 1));
140 vector[i] = 4 * m_points[i].x() + 2 * m_points[i + 1].x();
141 }
140
142
141 points.append((8 * q->x(n - 1) + q->x(n)) / 2.0);
143 vector[n - 1] = (8 * m_points[n-1].x() + m_points[n].x()) / 2.0;
142
144
143 QList<qreal> xControl = firstControlPoints(points);
145 QVector<qreal> xControl = firstControlPoints(vector);
144 points[0] = q->y(0) + 2 * q->y(1);
146
147 vector[0] = m_points[0].y() + 2 * m_points[1].y();
145
148
146 for (int i = 1; i < n - 1; ++i) {
149 for (int i = 1; i < n - 1; ++i) {
147 points[i] = 4 * q->y(i) + 2 * q->y(i + 1);
150 vector[i] = 4 * m_points[i].y() + 2 * m_points[i + 1].y();
148 }
151 }
149
152
150 points[n - 1] = (8 * q->y(n - 1) + q->y(n)) / 2.0;
153 vector[n - 1] = (8 * m_points[n-1].y() + m_points[n].y()) / 2.0;
154
155 QVector<qreal> yControl = firstControlPoints(vector);
151
156
152 QList<qreal> yControl = firstControlPoints(points);
157 for (int i = 0,j =0; i < n; ++i, ++j) {
153
158
154 for (int i = 0; i < n; ++i) {
159 m_controlPoints[j].setX(xControl[i]);
160 m_controlPoints[j].setY(yControl[i]);
155
161
156 m_controlPoints.append(QPointF(xControl[i], yControl[i]));
162 j++;
157
163
158 if (i < n - 1)
164 if (i < n - 1){
159 m_controlPoints.append(QPointF(2 * q->x(i + 1) - xControl[i + 1], 2 * q->y(i + 1) - yControl[i + 1]));
165 m_controlPoints[j].setX(2 * m_points[i+1].x() - xControl[i + 1]);
160 else
166 m_controlPoints[j].setY(2 * m_points[i+1].y() - yControl[i + 1]);
161 m_controlPoints.append(QPointF((q->x(n) + xControl[n - 1]) / 2, (q->y(n) + yControl[n - 1]) / 2));
167 }else{
168 m_controlPoints[j].setX((m_points[n].x() + xControl[n - 1]) / 2);
169 m_controlPoints[j].setY((m_points[n].y() + yControl[n - 1]) / 2);
170 }
162 }
171 }
163 }
172 }
164
173
165 QList<qreal> QSplineSeriesPrivate::firstControlPoints(QList<qreal> list)
174 QVector<qreal> QSplineSeriesPrivate::firstControlPoints(const QVector<qreal>& vector)
166 {
175 {
167 QList<qreal> result;
176 QVector<qreal> result;
168 QList<qreal> temp;
177
178 int count = vector.count();
179 result.resize(count);
180 result[0] = vector[0] / 2.0;
181
182 QVector<qreal> temp;
183 temp.resize(count);
184 temp[0] = 0;
169
185
170 qreal b = 2.0;
186 qreal b = 2.0;
171 result.append(list[0] / b);
187
172 temp.append(0);
188 for (int i = 1; i < count; i++) {
173 for (int i = 1; i < list.size(); i++) {
189 temp[i] = 1 / b;
174 temp.append(1 / b);
190 b = (i < count - 1 ? 4.0 : 3.5) - temp[i];
175 b = (i < list.size() - 1 ? 4.0 : 3.5) - temp[i];
191 result[i]=(vector[i] - result[i - 1]) / b;
176 result.append((list[i] - result[i - 1]) / b);
177 }
192 }
178 for (int i = 1; i < list.size(); i++)
193 for (int i = 1; i < count; i++)
179 result[list.size() - i - 1] -= temp[list.size() - i] * result[list.size() - i];
194 result[count - i - 1] -= temp[count - i] * result[count - i];
180
195
181 return result;
196 return result;
182 }
197 }
@@ -186,9 +201,8 QList<qreal> QSplineSeriesPrivate::firstControlPoints(QList<qreal> list)
186 */
201 */
187 void QSplineSeriesPrivate::updateControlPoints()
202 void QSplineSeriesPrivate::updateControlPoints()
188 {
203 {
189 Q_Q(QSplineSeries);
204 if (m_points.count() > 1) {
190 if (q->count() > 1) {
205 m_controlPoints.resize(2*m_points.count()-2);
191 m_controlPoints.clear();
192 calculateControlPoints();
206 calculateControlPoints();
193 }
207 }
194 }
208 }
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@@ -41,13 +41,16 class QSplineSeriesPrivate: public QLineSeriesPrivate
41 public:
41 public:
42 Chart* createGraphics(ChartPresenter* presenter);
42 Chart* createGraphics(ChartPresenter* presenter);
43 QSplineSeriesPrivate(QSplineSeries* q);
43 QSplineSeriesPrivate(QSplineSeries* q);
44 void calculateControlPoints();
45 QList<qreal> firstControlPoints(QList<qreal> rhs);
46
44
47 public Q_SLOTS:
45 public Q_SLOTS:
48 void updateControlPoints();
46 void updateControlPoints();
47
48 private:
49 void calculateControlPoints();
50 QVector<qreal> firstControlPoints(const QVector<qreal>& vector);
51
49 public:
52 public:
50 QList<QPointF> m_controlPoints;
53 QVector<QPointF> m_controlPoints;
51 private:
54 private:
52 Q_DECLARE_PUBLIC(QSplineSeries)
55 Q_DECLARE_PUBLIC(QSplineSeries)
53 };
56 };
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@@ -98,11 +98,7 QXYSeries::~QXYSeries()
98 */
98 */
99 void QXYSeries::append(qreal x,qreal y)
99 void QXYSeries::append(qreal x,qreal y)
100 {
100 {
101 Q_D(QXYSeries);
101 append(QPointF(x,y));
102 Q_ASSERT(d->m_x.size() == d->m_y.size());
103 d->m_x<<x;
104 d->m_y<<y;
105 emit d->pointAdded(d->m_x.size()-1);
106 }
102 }
107
103
108 /*!
104 /*!
@@ -111,55 +107,35 void QXYSeries::append(qreal x,qreal y)
111 */
107 */
112 void QXYSeries::append(const QPointF &point)
108 void QXYSeries::append(const QPointF &point)
113 {
109 {
114 append(point.x(),point.y());
110 Q_D(QXYSeries);
111 d->m_points<<point;
112 emit d->pointAdded(d->m_points.count()-1);
115 }
113 }
116
114
117 /*!
115 /*!
118 This is an overloaded function.
116 This is an overloaded function.
119 Adds list of data \a points to the series. Points are connected with lines on the chart.
117 Adds list of data \a points to the series. Points are connected with lines on the chart.
120 */
118 */
121 void QXYSeries::append(const QList<QPointF> points)
119 void QXYSeries::append(const QList<QPointF> &points)
122 {
120 {
123 foreach(const QPointF& point , points) {
121 foreach(const QPointF& point , points) {
124 append(point.x(),point.y());
122 append(point);
125 }
123 }
126 }
124 }
127
125
128 /*!
129 Modifies \a y value for given \a x a value.
130 */
131 void QXYSeries::replace(qreal x,qreal y)
132 {
133 Q_D(QXYSeries);
134 int index = d->m_x.indexOf(x);
135 d->m_x[index] = x;
136 d->m_y[index] = y;
137 emit d->pointReplaced(index);
138 }
139
126
140 /*!
127 void QXYSeries::replace(qreal oldX,qreal oldY,qreal newX,qreal newY)
141 This is an overloaded function.
142 Replaces current y value of for given \a point x value with \a point y value.
143 */
144 void QXYSeries::replace(const QPointF &point)
145 {
128 {
146 replace(point.x(),point.y());
129 replace(QPointF(oldX,oldY),QPointF(newX,newY));
147 }
130 }
148
131
149 /*!
132 void QXYSeries::replace(const QPointF &oldPoint,const QPointF &newPoint)
150 Removes first \a x value and related y value.
151 */
152 void QXYSeries::remove(qreal x)
153 {
133 {
154 Q_D(QXYSeries);
134 Q_D(QXYSeries);
155 int index = d->m_x.indexOf(x);
135 int index = d->m_points.indexOf(oldPoint);
156
136 if(index==1) return;
157 if (index == -1) return;
137 d->m_points[index] = newPoint;
158
138 emit d->pointReplaced(index);
159 d->m_x.remove(index);
160 d->m_y.remove(index);
161
162 emit d->pointRemoved(index);
163 }
139 }
164
140
165 /*!
141 /*!
@@ -167,17 +143,7 void QXYSeries::remove(qreal x)
167 */
143 */
168 void QXYSeries::remove(qreal x,qreal y)
144 void QXYSeries::remove(qreal x,qreal y)
169 {
145 {
170 Q_D(QXYSeries);
146 remove(QPointF(x,y));
171 int index =-1;
172 do {
173 index = d->m_x.indexOf(x,index+1);
174 } while (index !=-1 && d->m_y.at(index)!=y);
175
176 if (index==-1) return;
177
178 d->m_x.remove(index);
179 d->m_y.remove(index);
180 emit d->pointRemoved(index);
181 }
147 }
182
148
183 /*!
149 /*!
@@ -185,7 +151,11 void QXYSeries::remove(qreal x,qreal y)
185 */
151 */
186 void QXYSeries::remove(const QPointF &point)
152 void QXYSeries::remove(const QPointF &point)
187 {
153 {
188 remove(point.x(),point.y());
154 Q_D(QXYSeries);
155 int index = d->m_points.indexOf(point);
156 if(index==1) return;
157 d->m_points.remove(index);
158 emit d->pointRemoved(index);
189 }
159 }
190
160
191 /*!
161 /*!
@@ -194,45 +164,41 void QXYSeries::remove(const QPointF &point)
194 void QXYSeries::removeAll()
164 void QXYSeries::removeAll()
195 {
165 {
196 Q_D(QXYSeries);
166 Q_D(QXYSeries);
197 d->m_x.clear();
167 foreach(const QPointF& point, d->m_points) {
198 d->m_y.clear();
168 remove(point);
199 }
200
201 /*!
202 \internal \a pos
203 */
204 qreal QXYSeries::x(int pos) const
205 {
206 Q_D(const QXYSeries);
207 if (d->m_model) {
208 if (d->m_mapOrientation == Qt::Vertical)
209 // consecutive data is read from model's column
210 return d->m_model->data(d->m_model->index(pos + d->m_mapFirst, d->m_mapX), Qt::DisplayRole).toDouble();
211 else
212 // consecutive data is read from model's row
213 return d->m_model->data(d->m_model->index(d->m_mapX, pos + d->m_mapFirst), Qt::DisplayRole).toDouble();
214 } else {
215 // model is not specified, return the data from series' internal data store
216 return d->m_x.at(pos);
217 }
169 }
218 }
170 }
219
171
220 /*!
172 /*!
221 \internal \a pos
173 \internal \a pos
222 */
174 */
223 qreal QXYSeries::y(int pos) const
175 QList<QPointF> QXYSeries::points() const
224 {
176 {
225 Q_D(const QXYSeries);
177 Q_D(const QXYSeries);
226 if (d->m_model) {
178 if (d->m_model) {
227 if (d->m_mapOrientation == Qt::Vertical)
179 QList<QPointF> result;
180 if (d->m_mapOrientation == Qt::Vertical){
228 // consecutive data is read from model's column
181 // consecutive data is read from model's column
229 return d->m_model->data(d->m_model->index(pos + d->m_mapFirst, d->m_mapY), Qt::DisplayRole).toDouble();
182
230 else
183 for(int i = d->m_mapFirst; i< d->m_mapFirst + count(); ++i) {
184 qreal x = d->m_model->data(d->m_model->index(i, d->m_mapX), Qt::DisplayRole).toReal();
185 qreal y = d->m_model->data(d->m_model->index(i, d->m_mapY), Qt::DisplayRole).toReal();
186 result << QPointF(x,y);
187 }
188 return result;
189 }
190 else{
231 // consecutive data is read from model's row
191 // consecutive data is read from model's row
232 return d->m_model->data(d->m_model->index(d->m_mapY, pos + d->m_mapFirst), Qt::DisplayRole).toDouble();
192 for(int i = d->m_mapFirst; i< d->m_mapFirst + count(); ++i) {
193 qreal x = d->m_model->data(d->m_model->index(d->m_mapX, i), Qt::DisplayRole).toReal();
194 qreal y = d->m_model->data(d->m_model->index(d->m_mapY, i), Qt::DisplayRole).toReal();
195 result << QPointF(x,y);
196 }
197 return result;
198 }
233 } else {
199 } else {
234 // model is not specified, return the data from series' internal data store
200 // model is not specified, return the data from series' internal data store
235 return d->m_y.at(pos);
201 return d->m_points.toList();
236 }
202 }
237 }
203 }
238
204
@@ -243,8 +209,6 int QXYSeries::count() const
243 {
209 {
244 Q_D(const QXYSeries);
210 Q_D(const QXYSeries);
245
211
246 Q_ASSERT(d->m_x.size() == d->m_y.size());
247
248 if (d->m_model) {
212 if (d->m_model) {
249 if (d->m_mapOrientation == Qt::Vertical) {
213 if (d->m_mapOrientation == Qt::Vertical) {
250 // data is in a column. Return the number of mapped items if the model's column have enough items
214 // data is in a column. Return the number of mapped items if the model's column have enough items
@@ -264,19 +228,7 int QXYSeries::count() const
264 }
228 }
265
229
266 // model is not specified, return the number of points in the series internal data store
230 // model is not specified, return the number of points in the series internal data store
267 return d->m_x.size();
231 return d->m_points.count();
268 }
269
270 /*!
271 Returns the data points of the series.
272 */
273 QList<QPointF> QXYSeries::data()
274 {
275 Q_D(QXYSeries);
276 QList<QPointF> data;
277 for (int i(0); i < d->m_x.count() && i < d->m_y.count(); i++)
278 data.append(QPointF(d->m_x.at(i), d->m_y.at(i)));
279 return data;
280 }
232 }
281
233
282
234
@@ -359,7 +311,7 QXYSeries& QXYSeries::operator<< (const QPointF &point)
359 \sa append()
311 \sa append()
360 */
312 */
361
313
362 QXYSeries& QXYSeries::operator<< (const QList<QPointF> points)
314 QXYSeries& QXYSeries::operator<< (const QList<QPointF>& points)
363 {
315 {
364 append(points);
316 append(points);
365 return *this;
317 return *this;
@@ -443,11 +395,11 void QXYSeriesPrivate::scaleDomain(Domain& domain)
443 int tickXCount(domain.tickXCount());
395 int tickXCount(domain.tickXCount());
444 int tickYCount(domain.tickYCount());
396 int tickYCount(domain.tickYCount());
445
397
446 Q_Q(QXYSeries);
398 for (int i = 0; i < m_points.count(); i++)
447 for (int i = 0; i < q->count(); i++)
448 {
399 {
449 qreal x = q->x(i);
400
450 qreal y = q->y(i);
401 qreal x = m_points[i].x();
402 qreal y = m_points[i].y();
451 minX = qMin(minX, x);
403 minX = qMin(minX, x);
452 minY = qMin(minY, y);
404 minY = qMin(minY, y);
453 maxX = qMax(maxX, x);
405 maxX = qMax(maxX, x);
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@@ -42,21 +42,18 protected:
42 public:
42 public:
43 void append(qreal x, qreal y);
43 void append(qreal x, qreal y);
44 void append(const QPointF &point);
44 void append(const QPointF &point);
45 void append(const QList<QPointF> points);
45 void append(const QList<QPointF> &points);
46 void replace(qreal x,qreal y);
46 void replace(qreal oldX,qreal oldY,qreal newX,qreal newY);
47 void replace(const QPointF &point);
47 void replace(const QPointF &oldPoint,const QPointF &newPoint);
48 void remove(qreal x);
49 void remove(qreal x, qreal y);
48 void remove(qreal x, qreal y);
50 void remove(const QPointF &point);
49 void remove(const QPointF &point);
51 void removeAll();
50 void removeAll();
52
51
53 int count() const;
52 int count() const;
54 qreal x(int pos) const;
53 QList<QPointF> points() const;
55 qreal y(int pos) const;
56 QList<QPointF> data();
57
54
58 QXYSeries& operator << (const QPointF &point);
55 QXYSeries& operator << (const QPointF &point);
59 QXYSeries& operator << (const QList<QPointF> points);
56 QXYSeries& operator << (const QList<QPointF> &points);
60
57
61 void setPen(const QPen &pen);
58 void setPen(const QPen &pen);
62 QPen pen() const;
59 QPen pen() const;
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@@ -62,8 +62,7 Q_SIGNALS:
62
62
63
63
64 protected:
64 protected:
65 QVector<qreal> m_x;
65 QVector<QPointF> m_points;
66 QVector<qreal> m_y;
67
66
68 QPen m_pen;
67 QPen m_pen;
69 QBrush m_brush;
68 QBrush m_brush;
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@@ -61,8 +61,9 QPointF XYChartItem::calculateGeometryPoint(int index) const
61 {
61 {
62 const qreal deltaX = m_size.width()/(m_maxX-m_minX);
62 const qreal deltaX = m_size.width()/(m_maxX-m_minX);
63 const qreal deltaY = m_size.height()/(m_maxY-m_minY);
63 const qreal deltaY = m_size.height()/(m_maxY-m_minY);
64 qreal x = (m_series->x(index) - m_minX)* deltaX;
64 const QList<QPointF>& vector = m_series->points();
65 qreal y = (m_series->y(index) - m_minY)*-deltaY + m_size.height();
65 qreal x = (vector[index].x() - m_minX)* deltaX;
66 qreal y = (vector[index].y() - m_minY)*-deltaY + m_size.height();
66 return QPointF(x,y);
67 return QPointF(x,y);
67 }
68 }
68
69
@@ -71,14 +72,16 QVector<QPointF> XYChartItem::calculateGeometryPoints() const
71 const qreal deltaX = m_size.width()/(m_maxX-m_minX);
72 const qreal deltaX = m_size.width()/(m_maxX-m_minX);
72 const qreal deltaY = m_size.height()/(m_maxY-m_minY);
73 const qreal deltaY = m_size.height()/(m_maxY-m_minY);
73
74
74 QVector<QPointF> points;
75 QVector<QPointF> result;
75 points.reserve(m_series->count());
76 result.resize(m_series->count());
77 const QList<QPointF>& vector = m_series->points();
76 for (int i = 0; i < m_series->count(); ++i) {
78 for (int i = 0; i < m_series->count(); ++i) {
77 qreal x = (m_series->x(i) - m_minX)* deltaX;
79 qreal x = (vector[i].x() - m_minX)* deltaX;
78 qreal y = (m_series->y(i) - m_minY)*-deltaY + m_size.height();
80 qreal y = (vector[i].y() - m_minY)*-deltaY + m_size.height();
79 points << QPointF(x,y);
81 result[i].setX(x);
82 result[i].setY(y);
80 }
83 }
81 return points;
84 return result;
82 }
85 }
83
86
84 QPointF XYChartItem::calculateDomainPoint(const QPointF &point) const
87 QPointF XYChartItem::calculateDomainPoint(const QPointF &point) const
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@@ -3,7 +3,7
3 }
3 }
4
4
5 TEMPLATE = subdirs
5 TEMPLATE = subdirs
6 SUBDIRS += qchartview qchart
6 SUBDIRS += qchartview qchart qlineseries
7
7
8 test_private:{
8 test_private:{
9 SUBDIRS += chartdataset domain
9 SUBDIRS += chartdataset domain
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@@ -58,10 +58,10 void WaveChart::update()
58 {
58 {
59
59
60 int fluctuate;
60 int fluctuate;
61
61 const QList<QPointF>& points = m_series->points();
62 for (qreal i = 0, x = 0; x <= 2 * PI; x += m_step, i++) {
62 for (qreal i = 0, x = 0; x <= 2 * PI; x += m_step, i++) {
63 fluctuate = qrand() % 100;
63 fluctuate = qrand() % 100;
64 m_series->replace(x, fabs(sin(x) * fluctuate));
64 m_series->replace(x,points[i].y(),x,fabs(sin(x) * fluctuate));
65
65
66 }
66 }
67
67
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