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Qdatetimeaxis docs fix
Marek Rosa -
r2040:a58d6158955b
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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 "qdatetimeaxis.h"
21 #include "qdatetimeaxis.h"
22 #include "qdatetimeaxis_p.h"
22 #include "qdatetimeaxis_p.h"
23 #include "chartdatetimeaxisx_p.h"
23 #include "chartdatetimeaxisx_p.h"
24 #include "chartdatetimeaxisy_p.h"
24 #include "chartdatetimeaxisy_p.h"
25 #include "domain_p.h"
25 #include "domain_p.h"
26 #include <cmath>
26 #include <cmath>
27
27
28 QTCOMMERCIALCHART_BEGIN_NAMESPACE
28 QTCOMMERCIALCHART_BEGIN_NAMESPACE
29 /*!
29 /*!
30 \class QDateTimeAxis
30 \class QDateTimeAxis
31 \brief The QDateTimeAxis class is used for manipulating chart's axis.
31 \brief The QDateTimeAxis class is used for manipulating chart's axis.
32 \mainclass
32 \mainclass
33
33
34 The labels can be configured by setting an appropriate DateTime format.
34 The labels can be configured by setting an appropriate DateTime format.
35 QDateTimeAxis works correctly with dates from 4714 BCE to 287396 CE
35 QDateTimeAxis works correctly with dates from 4714 BCE to 287396 CE
36 There are also other limitiation related to QDateTime . Please refer to QDateTime documentation.
36 There are also other limitiation related to QDateTime . Please refer to QDateTime documentation.
37 QDateTimeAxis can be setup to show axis line with tick marks, grid lines and shades.
37 QDateTimeAxis can be setup to show axis line with tick marks, grid lines and shades.
38
38
39 NOTE: QDateTimeAxis is disabled on ARM platform at the present time.
39 NOTE: QDateTimeAxis is disabled on ARM architecture.
40
40
41 \image api_datatime_axis.png
41 \image api_datatime_axis.png
42
42
43 QDateTimeAxis can be used with QLineSeries, QSplineSeries or QScatterSeries.
43 QDateTimeAxis can be used with QLineSeries, QSplineSeries or QScatterSeries.
44 To add a data point to the series QDateTime::toMSecsSinceEpoch() is used.
44 To add a data point to the series QDateTime::toMSecsSinceEpoch() is used.
45 \code
45 \code
46 QLineSeries *series = new QLineSeries;
46 QLineSeries *series = new QLineSeries;
47
47
48 QDateTime xValue;
48 QDateTime xValue;
49 xValue.setDate(QDate(2012, 1 , 18));
49 xValue.setDate(QDate(2012, 1 , 18));
50 xValue.setTime(QTime(9, 34));
50 xValue.setTime(QTime(9, 34));
51 qreal yValue = 12;
51 qreal yValue = 12;
52 series->append(xValue.toMSecsSinceEpoch(), yValue);
52 series->append(xValue.toMSecsSinceEpoch(), yValue);
53
53
54 xValue.setDate(QDate(2013, 5 , 11));
54 xValue.setDate(QDate(2013, 5 , 11));
55 xValue.setTime(QTime(11, 14));
55 xValue.setTime(QTime(11, 14));
56 qreal yValue = 22;
56 qreal yValue = 22;
57 series->append(xValue.toMSecsSinceEpoch(), yValue);
57 series->append(xValue.toMSecsSinceEpoch(), yValue);
58 \endcode
58 \endcode
59
59
60 Adding the series to the chart and setting up the QDateTimeAxis.
60 Adding the series to the chart and setting up the QDateTimeAxis.
61 \code
61 \code
62 QChartView *chartView = new QChartView;
62 QChartView *chartView = new QChartView;
63 chartView->chart()->addSeries(series);
63 chartView->chart()->addSeries(series);
64
64
65 // ...
65 // ...
66 QDateTimeAxis *axisX = new QDateTimeAxis;
66 QDateTimeAxis *axisX = new QDateTimeAxis;
67 axisX->setFormat("dd-MM-yyyy h:mm");
67 axisX->setFormat("dd-MM-yyyy h:mm");
68 chartView->chart()->setAxisX(series, axisX);
68 chartView->chart()->setAxisX(series, axisX);
69 \endcode
69 \endcode
70 */
70 */
71
71
72 /*!
72 /*!
73 \qmlclass DateTimeAxis QDateTimeAxis
73 \qmlclass DateTimeAxis QDateTimeAxis
74 \brief The DateTimeAxis element is used for manipulating chart's axes
74 \brief The DateTimeAxis element is used for manipulating chart's axes
75 \inherits AbstractAxis
75 \inherits AbstractAxis
76
76
77 The labels can be configured by setting an appropriate DateTime format.
77 The labels can be configured by setting an appropriate DateTime format.
78 Note that any date before 4714 BCE or after about 1.4 million CE may not be accurately stored.
78 Note that any date before 4714 BCE or after about 1.4 million CE may not be accurately stored.
79 DateTimeAxis can be setup to show axis line with tick marks, grid lines and shades.
79 DateTimeAxis can be setup to show axis line with tick marks, grid lines and shades.
80 */
80 */
81
81
82 /*!
82 /*!
83 \property QDateTimeAxis::min
83 \property QDateTimeAxis::min
84 Defines the minimum value on the axis.
84 Defines the minimum value on the axis.
85 When setting this property the max is adjusted if necessary, to ensure that the range remains valid.
85 When setting this property the max is adjusted if necessary, to ensure that the range remains valid.
86 */
86 */
87 /*!
87 /*!
88 \qmlproperty real ValuesAxis::min
88 \qmlproperty real ValuesAxis::min
89 Defines the minimum value on the axis.
89 Defines the minimum value on the axis.
90 When setting this property the max is adjusted if necessary, to ensure that the range remains valid.
90 When setting this property the max is adjusted if necessary, to ensure that the range remains valid.
91 */
91 */
92
92
93 /*!
93 /*!
94 \property QDateTimeAxis::max
94 \property QDateTimeAxis::max
95 Defines the maximum value on the axis.
95 Defines the maximum value on the axis.
96 When setting this property the min is adjusted if necessary, to ensure that the range remains valid.
96 When setting this property the min is adjusted if necessary, to ensure that the range remains valid.
97 */
97 */
98 /*!
98 /*!
99 \qmlproperty real ValuesAxis::max
99 \qmlproperty real ValuesAxis::max
100 Defines the maximum value on the axis.
100 Defines the maximum value on the axis.
101 When setting this property the min is adjusted if necessary, to ensure that the range remains valid.
101 When setting this property the min is adjusted if necessary, to ensure that the range remains valid.
102 */
102 */
103
103
104 /*!
104 /*!
105 \fn void QDateTimeAxis::minChanged(QDateTime min)
105 \fn void QDateTimeAxis::minChanged(QDateTime min)
106 Axis emits signal when \a min of axis has changed.
106 Axis emits signal when \a min of axis has changed.
107 */
107 */
108 /*!
108 /*!
109 \qmlsignal ValuesAxis::onMinChanged(QDateTime min)
109 \qmlsignal ValuesAxis::onMinChanged(QDateTime min)
110 Axis emits signal when \a min of axis has changed.
110 Axis emits signal when \a min of axis has changed.
111 */
111 */
112
112
113 /*!
113 /*!
114 \fn void QDateTimeAxis::maxChanged(QDateTime max)
114 \fn void QDateTimeAxis::maxChanged(QDateTime max)
115 Axis emits signal when \a max of axis has changed.
115 Axis emits signal when \a max of axis has changed.
116 */
116 */
117 /*!
117 /*!
118 \qmlsignal ValuesAxis::onMaxChanged(QDateTime max)
118 \qmlsignal ValuesAxis::onMaxChanged(QDateTime max)
119 Axis emits signal when \a max of axis has changed.
119 Axis emits signal when \a max of axis has changed.
120 */
120 */
121
121
122 /*!
122 /*!
123 \fn void QDateTimeAxis::rangeChanged(QDateTime min, QDateTime max)
123 \fn void QDateTimeAxis::rangeChanged(QDateTime min, QDateTime max)
124 Axis emits signal when \a min or \a max of axis has changed.
124 Axis emits signal when \a min or \a max of axis has changed.
125 */
125 */
126
126
127 /*!
127 /*!
128 \property QDateTimeAxis::tickCount
128 \property QDateTimeAxis::tickCount
129 The number of tick marks for the axis.
129 The number of tick marks for the axis.
130 */
130 */
131
131
132 /*!
132 /*!
133 \qmlproperty int DateTimeAxis::tickCount
133 \qmlproperty int DateTimeAxis::tickCount
134 The number of tick marks for the axis.
134 The number of tick marks for the axis.
135 */
135 */
136
136
137 /*!
137 /*!
138 \property QDateTimeAxis::format
138 \property QDateTimeAxis::format
139 The format string that is used when creating label for the axis out of a QDateTime object.
139 The format string that is used when creating label for the axis out of a QDateTime object.
140 Check QDateTime documentation for information on how the string should be defined.
140 Check QDateTime documentation for information on how the string should be defined.
141 */
141 */
142 /*!
142 /*!
143 \qmlproperty string DateTimeAxis::format
143 \qmlproperty string DateTimeAxis::format
144 The format string that is used when creating label for the axis out of a QDateTime object.
144 The format string that is used when creating label for the axis out of a QDateTime object.
145 Check QDateTime documentation for information on how the string should be defined.
145 Check QDateTime documentation for information on how the string should be defined.
146 */
146 */
147
147
148 /*!
148 /*!
149 \fn void QDateTimeAxis::formatChanged(QString format)
149 \fn void QDateTimeAxis::formatChanged(QString format)
150 Axis emits signal when \a format of the axis has changed.
150 Axis emits signal when \a format of the axis has changed.
151 */
151 */
152 /*!
152 /*!
153 \qmlsignal DateTimeAxis::onFormatChanged(string format)
153 \qmlsignal DateTimeAxis::onFormatChanged(string format)
154 Axis emits signal when \a format of the axis has changed.
154 Axis emits signal when \a format of the axis has changed.
155 */
155 */
156
156
157 /*!
157 /*!
158 Constructs an axis object which is a child of \a parent.
158 Constructs an axis object which is a child of \a parent.
159 */
159 */
160 QDateTimeAxis::QDateTimeAxis(QObject *parent) :
160 QDateTimeAxis::QDateTimeAxis(QObject *parent) :
161 QAbstractAxis(*new QDateTimeAxisPrivate(this),parent)
161 QAbstractAxis(*new QDateTimeAxisPrivate(this),parent)
162 {
162 {
163
163
164 }
164 }
165
165
166 /*!
166 /*!
167 \internal
167 \internal
168 */
168 */
169 QDateTimeAxis::QDateTimeAxis(QDateTimeAxisPrivate &d,QObject *parent) : QAbstractAxis(d,parent)
169 QDateTimeAxis::QDateTimeAxis(QDateTimeAxisPrivate &d,QObject *parent) : QAbstractAxis(d,parent)
170 {
170 {
171
171
172 }
172 }
173
173
174 /*!
174 /*!
175 Destroys the object
175 Destroys the object
176 */
176 */
177 QDateTimeAxis::~QDateTimeAxis()
177 QDateTimeAxis::~QDateTimeAxis()
178 {
178 {
179
179
180 }
180 }
181
181
182 void QDateTimeAxis::setMin(QDateTime min)
182 void QDateTimeAxis::setMin(QDateTime min)
183 {
183 {
184 Q_D(QDateTimeAxis);
184 Q_D(QDateTimeAxis);
185 if (min.isValid())
185 if (min.isValid())
186 setRange(min, qMax(d->m_max, min));
186 setRange(min, qMax(d->m_max, min));
187 }
187 }
188
188
189 QDateTime QDateTimeAxis::min() const
189 QDateTime QDateTimeAxis::min() const
190 {
190 {
191 Q_D(const QDateTimeAxis);
191 Q_D(const QDateTimeAxis);
192 return d->m_min;
192 return d->m_min;
193 }
193 }
194
194
195 void QDateTimeAxis::setMax(QDateTime max)
195 void QDateTimeAxis::setMax(QDateTime max)
196 {
196 {
197 Q_D(QDateTimeAxis);
197 Q_D(QDateTimeAxis);
198 if (max.isValid())
198 if (max.isValid())
199 setRange(qMin(d->m_min, max), max);
199 setRange(qMin(d->m_min, max), max);
200 }
200 }
201
201
202 QDateTime QDateTimeAxis::max() const
202 QDateTime QDateTimeAxis::max() const
203 {
203 {
204 Q_D(const QDateTimeAxis);
204 Q_D(const QDateTimeAxis);
205 return d->m_max;
205 return d->m_max;
206 }
206 }
207
207
208 /*!
208 /*!
209 Sets range from \a min to \a max on the axis.
209 Sets range from \a min to \a max on the axis.
210 If min is greater than max then this function returns without making any changes.
210 If min is greater than max then this function returns without making any changes.
211 */
211 */
212 void QDateTimeAxis::setRange(QDateTime min, QDateTime max)
212 void QDateTimeAxis::setRange(QDateTime min, QDateTime max)
213 {
213 {
214 Q_D(QDateTimeAxis);
214 Q_D(QDateTimeAxis);
215 if (!min.isValid() || !max.isValid() || min > max)
215 if (!min.isValid() || !max.isValid() || min > max)
216 return;
216 return;
217
217
218 bool changed = false;
218 bool changed = false;
219 if (d->m_min != min) {
219 if (d->m_min != min) {
220 d->m_min = min;
220 d->m_min = min;
221 changed = true;
221 changed = true;
222 emit minChanged(min);
222 emit minChanged(min);
223 }
223 }
224
224
225 if (d->m_max != max) {
225 if (d->m_max != max) {
226 d->m_max = max;
226 d->m_max = max;
227 changed = true;
227 changed = true;
228 emit maxChanged(max);
228 emit maxChanged(max);
229 }
229 }
230
230
231 if (changed) {
231 if (changed) {
232 emit rangeChanged(d->m_min,d->m_max);
232 emit rangeChanged(d->m_min,d->m_max);
233 d->emitUpdated();
233 d->emitUpdated();
234 }
234 }
235 }
235 }
236
236
237 void QDateTimeAxis::setFormat(QString format)
237 void QDateTimeAxis::setFormat(QString format)
238 {
238 {
239 Q_D(QDateTimeAxis);
239 Q_D(QDateTimeAxis);
240 if (d->m_format != format) {
240 if (d->m_format != format) {
241 d->m_format = format;
241 d->m_format = format;
242 emit formatChanged(format);
242 emit formatChanged(format);
243 }
243 }
244 }
244 }
245
245
246 QString QDateTimeAxis::format() const
246 QString QDateTimeAxis::format() const
247 {
247 {
248 Q_D(const QDateTimeAxis);
248 Q_D(const QDateTimeAxis);
249 return d->m_format;
249 return d->m_format;
250 }
250 }
251
251
252 /*!
252 /*!
253 Sets \a count for ticks on the axis.
253 Sets \a count for ticks on the axis.
254 */
254 */
255 void QDateTimeAxis::setTickCount(int count)
255 void QDateTimeAxis::setTickCount(int count)
256 {
256 {
257 Q_D(QDateTimeAxis);
257 Q_D(QDateTimeAxis);
258 if (d->m_tickCount != count && count >=2) {
258 if (d->m_tickCount != count && count >=2) {
259 d->m_tickCount = count;
259 d->m_tickCount = count;
260 d->emitUpdated();
260 d->emitUpdated();
261 }
261 }
262 }
262 }
263
263
264 /*!
264 /*!
265 \fn int QDateTimeAxis::tickCount() const
265 \fn int QDateTimeAxis::tickCount() const
266 Return number of ticks on the axis
266 Return number of ticks on the axis
267 */
267 */
268 int QDateTimeAxis::tickCount() const
268 int QDateTimeAxis::tickCount() const
269 {
269 {
270 Q_D(const QDateTimeAxis);
270 Q_D(const QDateTimeAxis);
271 return d->m_tickCount;
271 return d->m_tickCount;
272 }
272 }
273
273
274 /*!
274 /*!
275 Returns the type of the axis
275 Returns the type of the axis
276 */
276 */
277 QAbstractAxis::AxisType QDateTimeAxis::type() const
277 QAbstractAxis::AxisType QDateTimeAxis::type() const
278 {
278 {
279 return AxisTypeDateTime;
279 return AxisTypeDateTime;
280 }
280 }
281
281
282 /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
282 /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
283
283
284 QDateTimeAxisPrivate::QDateTimeAxisPrivate(QDateTimeAxis* q):
284 QDateTimeAxisPrivate::QDateTimeAxisPrivate(QDateTimeAxis* q):
285 QAbstractAxisPrivate(q),
285 QAbstractAxisPrivate(q),
286 m_min(QDateTime::fromMSecsSinceEpoch(0)),
286 m_min(QDateTime::fromMSecsSinceEpoch(0)),
287 m_max(QDateTime::fromMSecsSinceEpoch(0)),
287 m_max(QDateTime::fromMSecsSinceEpoch(0)),
288 m_tickCount(5)
288 m_tickCount(5)
289 {
289 {
290 m_format = "dd-MM-yyyy\nh:mm";
290 m_format = "dd-MM-yyyy\nh:mm";
291 }
291 }
292
292
293 QDateTimeAxisPrivate::~QDateTimeAxisPrivate()
293 QDateTimeAxisPrivate::~QDateTimeAxisPrivate()
294 {
294 {
295
295
296 }
296 }
297
297
298 void QDateTimeAxisPrivate::handleDomainUpdated()
298 void QDateTimeAxisPrivate::handleDomainUpdated()
299 {
299 {
300 Q_Q(QDateTimeAxis);
300 Q_Q(QDateTimeAxis);
301 Domain* domain = qobject_cast<Domain*>(sender());
301 Domain* domain = qobject_cast<Domain*>(sender());
302 Q_ASSERT(domain);
302 Q_ASSERT(domain);
303
303
304 if(orientation()==Qt::Horizontal){
304 if(orientation()==Qt::Horizontal){
305 q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minX()), QDateTime::fromMSecsSinceEpoch(domain->maxX()));
305 q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minX()), QDateTime::fromMSecsSinceEpoch(domain->maxX()));
306 }else if(orientation()==Qt::Vertical){
306 }else if(orientation()==Qt::Vertical){
307 q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minY()), QDateTime::fromMSecsSinceEpoch(domain->maxY()));
307 q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minY()), QDateTime::fromMSecsSinceEpoch(domain->maxY()));
308 }
308 }
309 }
309 }
310
310
311
311
312 void QDateTimeAxisPrivate::setMin(const QVariant &min)
312 void QDateTimeAxisPrivate::setMin(const QVariant &min)
313 {
313 {
314 Q_Q(QDateTimeAxis);
314 Q_Q(QDateTimeAxis);
315 if (min.canConvert(QVariant::DateTime))
315 if (min.canConvert(QVariant::DateTime))
316 q->setMin(min.toDateTime());
316 q->setMin(min.toDateTime());
317 }
317 }
318
318
319 void QDateTimeAxisPrivate::setMax(const QVariant &max)
319 void QDateTimeAxisPrivate::setMax(const QVariant &max)
320 {
320 {
321
321
322 Q_Q(QDateTimeAxis);
322 Q_Q(QDateTimeAxis);
323 if (max.canConvert(QVariant::DateTime))
323 if (max.canConvert(QVariant::DateTime))
324 q->setMax(max.toDateTime());
324 q->setMax(max.toDateTime());
325 }
325 }
326
326
327 void QDateTimeAxisPrivate::setRange(const QVariant &min, const QVariant &max)
327 void QDateTimeAxisPrivate::setRange(const QVariant &min, const QVariant &max)
328 {
328 {
329 Q_Q(QDateTimeAxis);
329 Q_Q(QDateTimeAxis);
330 if (min.canConvert(QVariant::DateTime) && max.canConvert(QVariant::DateTime))
330 if (min.canConvert(QVariant::DateTime) && max.canConvert(QVariant::DateTime))
331 q->setRange(min.toDateTime(), max.toDateTime());
331 q->setRange(min.toDateTime(), max.toDateTime());
332 }
332 }
333
333
334 ChartAxis* QDateTimeAxisPrivate::createGraphics(ChartPresenter* presenter)
334 ChartAxis* QDateTimeAxisPrivate::createGraphics(ChartPresenter* presenter)
335 {
335 {
336 Q_Q(QDateTimeAxis);
336 Q_Q(QDateTimeAxis);
337 if(m_orientation == Qt::Vertical){
337 if(m_orientation == Qt::Vertical){
338 return new ChartDateTimeAxisY(q,presenter);
338 return new ChartDateTimeAxisY(q,presenter);
339 }else{
339 }else{
340 return new ChartDateTimeAxisX(q,presenter);
340 return new ChartDateTimeAxisX(q,presenter);
341 }
341 }
342
342
343 }
343 }
344
344
345 void QDateTimeAxisPrivate::intializeDomain(Domain* domain)
345 void QDateTimeAxisPrivate::intializeDomain(Domain* domain)
346 {
346 {
347 Q_Q(QDateTimeAxis);
347 Q_Q(QDateTimeAxis);
348 if(m_max == m_min) {
348 if(m_max == m_min) {
349 if(m_orientation==Qt::Vertical){
349 if(m_orientation==Qt::Vertical){
350 q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minY()), QDateTime::fromMSecsSinceEpoch(domain->maxY()));
350 q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minY()), QDateTime::fromMSecsSinceEpoch(domain->maxY()));
351 }else{
351 }else{
352 q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minX()), QDateTime::fromMSecsSinceEpoch(domain->maxX()));
352 q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minX()), QDateTime::fromMSecsSinceEpoch(domain->maxX()));
353 }
353 }
354 } else {
354 } else {
355 if(m_orientation==Qt::Vertical){
355 if(m_orientation==Qt::Vertical){
356 domain->setRangeY(m_min.toMSecsSinceEpoch(), m_max.toMSecsSinceEpoch());
356 domain->setRangeY(m_min.toMSecsSinceEpoch(), m_max.toMSecsSinceEpoch());
357 }else{
357 }else{
358 domain->setRangeX(m_min.toMSecsSinceEpoch(), m_max.toMSecsSinceEpoch());
358 domain->setRangeX(m_min.toMSecsSinceEpoch(), m_max.toMSecsSinceEpoch());
359 }
359 }
360 }
360 }
361 }
361 }
362
362
363 #include "moc_qdatetimeaxis.cpp"
363 #include "moc_qdatetimeaxis.cpp"
364 #include "moc_qdatetimeaxis_p.cpp"
364 #include "moc_qdatetimeaxis_p.cpp"
365
365
366 QTCOMMERCIALCHART_END_NAMESPACE
366 QTCOMMERCIALCHART_END_NAMESPACE
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