qxyseries.cpp
660 lines
| 19.0 KiB
| text/x-c
|
CppLexer
Jani Honkonen
|
r794 | /**************************************************************************** | ||
| ** | ||||
| ** Copyright (C) 2012 Digia Plc | ||||
| ** All rights reserved. | ||||
| ** For any questions to Digia, please use contact form at http://qt.digia.com | ||||
| ** | ||||
| ** This file is part of the Qt Commercial Charts Add-on. | ||||
| ** | ||||
| ** $QT_BEGIN_LICENSE$ | ||||
| ** Licensees holding valid Qt Commercial licenses may use this file in | ||||
| ** accordance with the Qt Commercial License Agreement provided with the | ||||
| ** Software or, alternatively, in accordance with the terms contained in | ||||
| ** a written agreement between you and Digia. | ||||
| ** | ||||
| ** If you have questions regarding the use of this file, please use | ||||
| ** contact form at http://qt.digia.com | ||||
| ** $QT_END_LICENSE$ | ||||
| ** | ||||
| ****************************************************************************/ | ||||
Michal Klocek
|
r466 | #include "qxyseries.h" | ||
|
Michal Klocek
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r938 | #include "qxyseries_p.h" | ||
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Michal Klocek
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r943 | #include "domain_p.h" | ||
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Michal Klocek
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r950 | #include "legendmarker_p.h" | ||
Marek Rosa
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r862 | #include <QAbstractItemModel> | ||
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Michal Klocek
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r466 | |||
| QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
| /*! | ||||
| \class QXYSeries | ||||
|
Michal Klocek
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r470 | \brief The QXYSeries class is a base class for line, spline and scatter series. | ||
|
Michal Klocek
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r466 | */ | ||
| /*! | ||||
| \fn QPen QXYSeries::pen() const | ||||
|
Michal Klocek
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r480 | \brief Returns pen used to draw points for series. | ||
|
Michal Klocek
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r466 | \sa setPen() | ||
| */ | ||||
|
Michal Klocek
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r480 | /*! | ||
| \fn QBrush QXYSeries::brush() const | ||||
| \brief Returns brush used to draw points for series. | ||||
| \sa setBrush() | ||||
| */ | ||||
|
Michal Klocek
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r574 | /*! | ||
| \fn void QXYSeries::clicked(const QPointF& point) | ||||
| \brief Signal is emitted when user clicks the \a point on chart. | ||||
| */ | ||||
|
Michal Klocek
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r466 | /*! | ||
|
Marek Rosa
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r940 | \fn void QXYSeriesPrivate::pointReplaced(int index) | ||
|
Michal Klocek
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r466 | \brief \internal \a index | ||
| */ | ||||
| /*! | ||||
|
Marek Rosa
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r940 | \fn void QXYSeriesPrivate::pointAdded(int index) | ||
|
Michal Klocek
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r466 | \brief \internal \a index | ||
| */ | ||||
| /*! | ||||
|
Marek Rosa
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r940 | \fn void QXYSeriesPrivate::pointRemoved(int index) | ||
|
Michal Klocek
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r466 | \brief \internal \a index | ||
| */ | ||||
| /*! | ||||
|
Marek Rosa
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r940 | \fn void QXYSeriesPrivate::updated() | ||
|
Michal Klocek
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r466 | \brief \internal | ||
| */ | ||||
|
Marek Rosa
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r900 | /*! | ||
| \fn int QXYSeries::mapFirst() const | ||||
| Returns the index of the model's item that is used as a first one for the series. | ||||
| \sa mapCount() | ||||
| */ | ||||
| /*! | ||||
| \fn int QXYSeries::mapCount() const | ||||
| Returns the number of the items that are taken from the model. | ||||
| If -1 it means all the items of the model following the first one are used. | ||||
| \sa mapFirst() | ||||
| */ | ||||
|
Michal Klocek
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r466 | /*! | ||
| Constructs empty series object which is a child of \a parent. | ||||
| When series object is added to QChartView or QChart instance ownerships is transfered. | ||||
| */ | ||||
|
Michal Klocek
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r938 | QXYSeries::QXYSeries(QXYSeriesPrivate &d,QObject *parent):QSeries(d,parent) | ||
| { | ||||
|
Michal Klocek
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r466 | } | ||
| /*! | ||||
| Destroys the object. Series added to QChartView or QChart instances are owned by those, | ||||
| and are deleted when mentioned object are destroyed. | ||||
| */ | ||||
| QXYSeries::~QXYSeries() | ||||
| { | ||||
| } | ||||
| /*! | ||||
| Adds data point \a x \a y to the series. Points are connected with lines on the chart. | ||||
| */ | ||||
|
Jani Honkonen
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r796 | void QXYSeries::append(qreal x,qreal y) | ||
|
Michal Klocek
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r466 | { | ||
|
Michal Klocek
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r938 | Q_D(QXYSeries); | ||
| Q_ASSERT(d->m_x.size() == d->m_y.size()); | ||||
| d->m_x<<x; | ||||
| d->m_y<<y; | ||||
| emit d->pointAdded(d->m_x.size()-1); | ||||
|
Michal Klocek
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r466 | } | ||
| /*! | ||||
| This is an overloaded function. | ||||
| Adds data \a point to the series. Points are connected with lines on the chart. | ||||
| */ | ||||
|
Jani Honkonen
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r796 | void QXYSeries::append(const QPointF &point) | ||
|
Michal Klocek
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r466 | { | ||
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Jani Honkonen
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r796 | append(point.x(),point.y()); | ||
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Michal Klocek
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r466 | } | ||
|
Michal Klocek
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r481 | /*! | ||
| This is an overloaded function. | ||||
| Adds list of data \a points to the series. Points are connected with lines on the chart. | ||||
| */ | ||||
|
Jani Honkonen
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r796 | void QXYSeries::append(const QList<QPointF> points) | ||
|
Michal Klocek
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r481 | { | ||
| foreach(const QPointF& point , points) { | ||||
|
Jani Honkonen
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r796 | append(point.x(),point.y()); | ||
|
Michal Klocek
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r481 | } | ||
| } | ||||
|
Michal Klocek
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r466 | /*! | ||
| Modifies \a y value for given \a x a value. | ||||
| */ | ||||
| void QXYSeries::replace(qreal x,qreal y) | ||||
| { | ||||
|
Michal Klocek
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r938 | Q_D(QXYSeries); | ||
| int index = d->m_x.indexOf(x); | ||||
| d->m_x[index] = x; | ||||
| d->m_y[index] = y; | ||||
| emit d->pointReplaced(index); | ||||
|
Michal Klocek
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r466 | } | ||
| /*! | ||||
| This is an overloaded function. | ||||
| Replaces current y value of for given \a point x value with \a point y value. | ||||
| */ | ||||
sauimone
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r743 | void QXYSeries::replace(const QPointF &point) | ||
|
Michal Klocek
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r466 | { | ||
|
Marek Rosa
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r519 | replace(point.x(),point.y()); | ||
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Michal Klocek
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r466 | } | ||
|
Michal Klocek
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r622 | /*! | ||
| Removes first \a x value and related y value. | ||||
| */ | ||||
| void QXYSeries::remove(qreal x) | ||||
| { | ||||
|
Michal Klocek
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r938 | Q_D(QXYSeries); | ||
| int index = d->m_x.indexOf(x); | ||||
|
Michal Klocek
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r622 | |||
|
sauimone
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r743 | if (index == -1) return; | ||
|
Michal Klocek
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r622 | |||
|
Michal Klocek
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r938 | d->m_x.remove(index); | ||
| d->m_y.remove(index); | ||||
|
Michal Klocek
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r622 | |||
|
Michal Klocek
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r938 | emit d->pointRemoved(index); | ||
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Michal Klocek
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r622 | } | ||
|
Michal Klocek
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r466 | /*! | ||
|
Michal Klocek
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r541 | Removes current \a x and \a y value. | ||
|
Michal Klocek
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r466 | */ | ||
|
Michal Klocek
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r541 | void QXYSeries::remove(qreal x,qreal y) | ||
|
Michal Klocek
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r466 | { | ||
|
Michal Klocek
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r938 | Q_D(QXYSeries); | ||
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Michal Klocek
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r541 | int index =-1; | ||
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sauimone
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r743 | do { | ||
|
Michal Klocek
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r938 | index = d->m_x.indexOf(x,index+1); | ||
| } while (index !=-1 && d->m_y.at(index)!=y); | ||||
|
Michal Klocek
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r541 | |||
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sauimone
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r743 | if (index==-1) return; | ||
|
Marek Rosa
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r545 | |||
|
Michal Klocek
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r938 | d->m_x.remove(index); | ||
| d->m_y.remove(index); | ||||
| emit d->pointRemoved(index); | ||||
|
Michal Klocek
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r466 | } | ||
| /*! | ||||
| Removes current \a point x value. Note \a point y value is ignored. | ||||
| */ | ||||
|
sauimone
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r743 | void QXYSeries::remove(const QPointF &point) | ||
|
Michal Klocek
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r466 | { | ||
|
Michal Klocek
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r541 | remove(point.x(),point.y()); | ||
|
Michal Klocek
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r466 | } | ||
| /*! | ||||
|
Michal Klocek
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r481 | Removes all data points from the series. | ||
|
Michal Klocek
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r466 | */ | ||
|
Michal Klocek
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r481 | void QXYSeries::removeAll() | ||
|
Michal Klocek
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r466 | { | ||
|
Michal Klocek
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r938 | Q_D(QXYSeries); | ||
| d->m_x.clear(); | ||||
| d->m_y.clear(); | ||||
|
Michal Klocek
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r466 | } | ||
| /*! | ||||
| \internal \a pos | ||||
| */ | ||||
| qreal QXYSeries::x(int pos) const | ||||
| { | ||||
|
Michal Klocek
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r938 | Q_D(const QXYSeries); | ||
| if (d->m_model) { | ||||
| if (d->m_mapOrientation == Qt::Vertical) | ||||
|
Marek Rosa
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r527 | // consecutive data is read from model's column | ||
|
Michal Klocek
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r938 | return d->m_model->data(d->m_model->index(pos + d->m_mapFirst, d->m_mapX), Qt::DisplayRole).toDouble(); | ||
|
Marek Rosa
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r527 | else | ||
| // consecutive data is read from model's row | ||||
|
Michal Klocek
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r938 | return d->m_model->data(d->m_model->index(d->m_mapX, pos + d->m_mapFirst), Qt::DisplayRole).toDouble(); | ||
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sauimone
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r743 | } else { | ||
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Marek Rosa
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r527 | // model is not specified, return the data from series' internal data store | ||
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Michal Klocek
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r938 | return d->m_x.at(pos); | ||
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sauimone
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r743 | } | ||
|
Michal Klocek
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r466 | } | ||
| /*! | ||||
| \internal \a pos | ||||
| */ | ||||
| qreal QXYSeries::y(int pos) const | ||||
| { | ||||
|
Michal Klocek
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r938 | Q_D(const QXYSeries); | ||
| if (d->m_model) { | ||||
| if (d->m_mapOrientation == Qt::Vertical) | ||||
|
Marek Rosa
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r527 | // consecutive data is read from model's column | ||
|
Michal Klocek
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r938 | return d->m_model->data(d->m_model->index(pos + d->m_mapFirst, d->m_mapY), Qt::DisplayRole).toDouble(); | ||
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Marek Rosa
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r527 | else | ||
| // consecutive data is read from model's row | ||||
|
Michal Klocek
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r938 | return d->m_model->data(d->m_model->index(d->m_mapY, pos + d->m_mapFirst), Qt::DisplayRole).toDouble(); | ||
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sauimone
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r743 | } else { | ||
|
Marek Rosa
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r527 | // model is not specified, return the data from series' internal data store | ||
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Michal Klocek
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r938 | return d->m_y.at(pos); | ||
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sauimone
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r743 | } | ||
|
Michal Klocek
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r466 | } | ||
| /*! | ||||
| Returns number of data points within series. | ||||
| */ | ||||
| int QXYSeries::count() const | ||||
| { | ||||
|
Michal Klocek
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r938 | Q_D(const QXYSeries); | ||
| Q_ASSERT(d->m_x.size() == d->m_y.size()); | ||||
|
Michal Klocek
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r466 | |||
|
Michal Klocek
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r938 | if (d->m_model) { | ||
| if (d->m_mapOrientation == Qt::Vertical) { | ||||
|
Marek Rosa
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r734 | // data is in a column. Return the number of mapped items if the model's column have enough items | ||
| // or the number of items that can be mapped | ||||
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Michal Klocek
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r938 | if (d->m_mapLimited) | ||
| return qMin(d->m_mapCount, qMax(d->m_model->rowCount() - d->m_mapFirst, 0)); | ||||
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Marek Rosa
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r734 | else | ||
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Michal Klocek
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r938 | return qMax(d->m_model->rowCount() - d->m_mapFirst, 0); | ||
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sauimone
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r743 | } else { | ||
|
Marek Rosa
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r734 | // data is in a row. Return the number of mapped items if the model's row have enough items | ||
| // or the number of items that can be mapped | ||||
|
Michal Klocek
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r938 | if (d->m_mapLimited) | ||
| return qMin(d->m_mapCount, qMax(d->m_model->columnCount() - d->m_mapFirst, 0)); | ||||
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Marek Rosa
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r734 | else | ||
|
Michal Klocek
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r938 | return qMax(d->m_model->columnCount() - d->m_mapFirst, 0); | ||
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Marek Rosa
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r734 | } | ||
|
Jani Honkonen
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r609 | } | ||
| // model is not specified, return the number of points in the series internal data store | ||||
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Michal Klocek
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r938 | return d->m_x.size(); | ||
|
Michal Klocek
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r466 | } | ||
Tero Ahola
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r491 | /*! | ||
| Returns the data points of the series. | ||||
| */ | ||||
| QList<QPointF> QXYSeries::data() | ||||
| { | ||||
|
Michal Klocek
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r938 | Q_D(QXYSeries); | ||
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Tero Ahola
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r491 | QList<QPointF> data; | ||
|
Michal Klocek
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r938 | for (int i(0); i < d->m_x.count() && i < d->m_y.count(); i++) | ||
| data.append(QPointF(d->m_x.at(i), d->m_y.at(i))); | ||||
|
Tero Ahola
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r491 | return data; | ||
| } | ||||
|
Michal Klocek
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r467 | /*! | ||
|
Michal Klocek
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r481 | Sets \a pen used for drawing points on the chart. If the pen is not defined, the | ||
| pen from chart theme is used. | ||||
|
Marek Rosa
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r909 | \sa QChart::setTheme() | ||
|
Michal Klocek
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r467 | */ | ||
|
sauimone
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r743 | void QXYSeries::setPen(const QPen &pen) | ||
|
Michal Klocek
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r467 | { | ||
|
Michal Klocek
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r938 | Q_D(QXYSeries); | ||
| if (d->m_pen!=pen) { | ||||
| d->m_pen = pen; | ||||
| emit d->updated(); | ||||
|
Michal Klocek
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r467 | } | ||
| } | ||||
|
Michal Klocek
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r938 | QPen QXYSeries::pen() const | ||
| { | ||||
| Q_D(const QXYSeries); | ||||
| return d->m_pen; | ||||
| } | ||||
|
Michal Klocek
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r467 | /*! | ||
|
Michal Klocek
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r481 | Sets \a brush used for drawing points on the chart. If the brush is not defined, brush | ||
| from chart theme setting is used. | ||||
|
Marek Rosa
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r909 | \sa QChart::setTheme() | ||
|
Michal Klocek
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r467 | */ | ||
|
sauimone
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r743 | void QXYSeries::setBrush(const QBrush &brush) | ||
|
Michal Klocek
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r467 | { | ||
|
Michal Klocek
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r938 | Q_D(QXYSeries); | ||
| if (d->m_brush!=brush) { | ||||
| d->m_brush = brush; | ||||
| emit d->updated(); | ||||
|
Michal Klocek
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r467 | } | ||
| } | ||||
|
Michal Klocek
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r938 | QBrush QXYSeries::brush() const | ||
| { | ||||
| Q_D(const QXYSeries); | ||||
| return d->m_brush; | ||||
| } | ||||
| /*! | ||||
| Sets if data points are \a visible and should be drawn on line. | ||||
| */ | ||||
| void QXYSeries::setPointsVisible(bool visible) | ||||
| { | ||||
| Q_D(QXYSeries); | ||||
| if (d->m_pointsVisible != visible){ | ||||
| d->m_pointsVisible = visible; | ||||
| emit d->updated(); | ||||
| } | ||||
| } | ||||
| bool QXYSeries::pointsVisible() const | ||||
| { | ||||
| Q_D(const QXYSeries); | ||||
| return d->m_pointsVisible; | ||||
| } | ||||
|
Michal Klocek
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r467 | |||
|
Michal Klocek
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r466 | /*! | ||
| Stream operator for adding a data \a point to the series. | ||||
|
Jani Honkonen
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r796 | \sa append() | ||
|
Michal Klocek
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r466 | */ | ||
| QXYSeries& QXYSeries::operator<< (const QPointF &point) | ||||
| { | ||||
|
Jani Honkonen
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r796 | append(point); | ||
|
Michal Klocek
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r466 | return *this; | ||
| } | ||||
|
Michal Klocek
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r481 | /*! | ||
| Stream operator for adding a list of \a points to the series. | ||||
|
Jani Honkonen
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r796 | \sa append() | ||
|
Michal Klocek
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r481 | */ | ||
| QXYSeries& QXYSeries::operator<< (const QList<QPointF> points) | ||||
| { | ||||
|
Jani Honkonen
|
r796 | append(points); | ||
|
Michal Klocek
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r481 | return *this; | ||
| } | ||||
|
Marek Rosa
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r877 | /*! | ||
| \internal | ||||
| */ | ||||
|
Marek Rosa
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r519 | void QXYSeries::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight) | ||
| { | ||||
|
Tero Ahola
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r611 | Q_UNUSED(bottomRight) | ||
|
Michal Klocek
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r938 | Q_D(QXYSeries); | ||
| if (d->m_mapOrientation == Qt::Vertical) { | ||||
| if (topLeft.row() >= d->m_mapFirst && (!d->m_mapLimited || topLeft.row() < d->m_mapFirst + d->m_mapCount)) | ||||
| emit d->pointReplaced(topLeft.row() - d->m_mapFirst); | ||||
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sauimone
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r743 | } else { | ||
|
Michal Klocek
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r938 | if (topLeft.column() >= d->m_mapFirst && (!d->m_mapLimited || topLeft.column() < d->m_mapFirst + d->m_mapCount)) | ||
| emit d->pointReplaced(topLeft.column() - d->m_mapFirst); | ||||
|
Marek Rosa
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r961 | } | ||
|
Marek Rosa
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r734 | } | ||
|
Marek Rosa
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r877 | /*! | ||
| \internal | ||||
| */ | ||||
|
Marek Rosa
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r734 | void QXYSeries::modelDataAboutToBeAdded(QModelIndex parent, int start, int end) | ||
| { | ||||
| Q_UNUSED(parent) | ||||
| // Q_UNUSED(end) | ||||
|
Michal Klocek
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r938 | Q_D(QXYSeries); | ||
| if (d->m_mapLimited) { | ||||
| if (start >= d->m_mapFirst + d->m_mapCount) { | ||||
|
Marek Rosa
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r734 | // the added data is below mapped area | ||
| // therefore it has no relevance | ||||
| return; | ||||
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sauimone
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r743 | } else { | ||
|
Marek Rosa
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r734 | // the added data is in the mapped area or before it and update is needed | ||
| // check how many mapped items there is currently (before new items are added) | ||||
| // if the number of items currently is equal the m_mapCount then some needs to be removed from xychartitem | ||||
| // internal storage before new ones can be added | ||||
|
Marek Rosa
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r735 | |||
|
Michal Klocek
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r938 | int itemsToRemove = qMin(count() - qMax(start - d->m_mapFirst, 0), end - start + 1); | ||
| if (d->m_mapCount == count()) { | ||||
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Marek Rosa
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r735 | for (int i = 0; i < itemsToRemove; i++) | ||
|
Michal Klocek
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r938 | emit d->pointRemoved(qMin(end, count()) - i); | ||
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sauimone
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r743 | } | ||
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Marek Rosa
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r734 | } | ||
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sauimone
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r743 | } else { | ||
|
Marek Rosa
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r734 | // map is not limited (it includes all the items starting from m_mapFirst till the end of model) | ||
| // nothing to do | ||||
| // emit pointAdded(qMax(start - m_mapFirst, 0)); | ||||
| } | ||||
|
Marek Rosa
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r519 | } | ||
|
Marek Rosa
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r877 | /*! | ||
| \internal | ||||
| */ | ||||
|
Marek Rosa
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r545 | void QXYSeries::modelDataAdded(QModelIndex parent, int start, int end) | ||
| { | ||||
|
Tero Ahola
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r611 | Q_UNUSED(parent) | ||
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Marek Rosa
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r734 | // Q_UNUSED(end) | ||
|
Michal Klocek
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r938 | Q_D(QXYSeries); | ||
| if (d->m_mapLimited) { | ||||
| if (start >= d->m_mapFirst + d->m_mapCount) { | ||||
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Marek Rosa
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r734 | // the added data is below mapped area | ||
| // therefore it has no relevance | ||||
| return; | ||||
|
sauimone
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r743 | } else { | ||
|
Marek Rosa
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r734 | // the added data is in the mapped area or before it | ||
| // update needed | ||||
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sauimone
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r743 | if (count() > 0) { | ||
|
Michal Klocek
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r938 | int toBeAdded = qMin(d->m_mapCount - (start - d->m_mapFirst), end - start + 1); | ||
|
Marek Rosa
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r833 | for (int i = 0; i < toBeAdded; i++) | ||
|
Michal Klocek
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r938 | if (start + i >= d->m_mapFirst) | ||
| emit d->pointAdded(start + i); | ||||
|
sauimone
|
r743 | } | ||
|
Marek Rosa
|
r734 | } | ||
|
sauimone
|
r743 | } else { | ||
|
Marek Rosa
|
r734 | // map is not limited (it included all the items starting from m_mapFirst till the end of model) | ||
| for (int i = 0; i < end - start + 1; i++) | ||||
|
Michal Klocek
|
r938 | emit d->pointAdded(start + i); | ||
|
Marek Rosa
|
r734 | } | ||
| } | ||||
|
Marek Rosa
|
r877 | /*! | ||
| \internal | ||||
| */ | ||||
|
Marek Rosa
|
r734 | void QXYSeries::modelDataAboutToBeRemoved(QModelIndex parent, int start, int end) | ||
| { | ||||
| Q_UNUSED(parent) | ||||
| // Q_UNUSED(end) | ||||
|
Michal Klocek
|
r938 | Q_D(QXYSeries); | ||
| if (d->m_mapLimited) { | ||||
| if (start >= d->m_mapFirst + d->m_mapCount) { | ||||
|
Marek Rosa
|
r734 | // the removed data is below mapped area | ||
| // therefore it has no relevance | ||||
| return; | ||||
|
sauimone
|
r743 | } else { | ||
|
Marek Rosa
|
r734 | // the removed data is in the mapped area or before it | ||
| // update needed | ||||
|
Marek Rosa
|
r735 | |||
| // check how many items need to be removed from the xychartitem storage | ||||
| // the number equals the number of items that are removed and that lay before | ||||
| // or in the mapped area. Items that lay beyond the map do not count | ||||
| // the max is the current number of items in storage (count()) | ||||
|
Michal Klocek
|
r938 | int itemsToRemove = qMin(count(), qMin(end, d->m_mapFirst + d->m_mapCount - 1) - start + 1); | ||
|
Marek Rosa
|
r734 | for (int i = 0; i < itemsToRemove; i++) | ||
|
Michal Klocek
|
r938 | emit d->pointRemoved(start); | ||
|
Marek Rosa
|
r734 | } | ||
|
sauimone
|
r743 | } else { | ||
|
Marek Rosa
|
r734 | // map is not limited (it included all the items starting from m_mapFirst till the end of model) | ||
| for (int i = 0; i < end - start + 1; i++) | ||||
|
Michal Klocek
|
r938 | emit d->pointRemoved(start); | ||
|
Marek Rosa
|
r734 | } | ||
|
Marek Rosa
|
r545 | } | ||
|
Marek Rosa
|
r877 | /*! | ||
| \internal | ||||
| */ | ||||
|
Marek Rosa
|
r545 | void QXYSeries::modelDataRemoved(QModelIndex parent, int start, int end) | ||
| { | ||||
|
Michal Klocek
|
r938 | |||
|
Tero Ahola
|
r611 | Q_UNUSED(parent) | ||
| Q_UNUSED(end) | ||||
|
Michal Klocek
|
r938 | Q_D(QXYSeries); | ||
|
Marek Rosa
|
r734 | // how many items there were before data was removed | ||
| // int oldCount = count() - 1; | ||||
|
Michal Klocek
|
r938 | if (d->m_mapLimited) { | ||
| if (start >= d->m_mapFirst + d->m_mapCount) { | ||||
|
Marek Rosa
|
r734 | // the removed data is below mapped area | ||
| // therefore it has no relevance | ||||
| return; | ||||
|
sauimone
|
r743 | } else { | ||
|
Marek Rosa
|
r735 | // if the current items count in the whole model is bigger than the index of the last item | ||
| // that was removed than it means there are some extra items available | ||||
|
Marek Rosa
|
r833 | |||
|
Michal Klocek
|
r938 | int removedItemsCount = qMin(count(), qMin(end, d->m_mapFirst + d->m_mapCount - 1) - start + 1); | ||
|
Marek Rosa
|
r734 | int extraItemsAvailable = 0; | ||
|
Michal Klocek
|
r938 | if (d->m_mapOrientation == Qt::Vertical) { | ||
| extraItemsAvailable = qMax(d->m_model->rowCount() + (end - start + 1) - qMax(end + 1, d->m_mapFirst + d->m_mapCount), 0); | ||||
|
sauimone
|
r743 | } else { | ||
|
Michal Klocek
|
r938 | extraItemsAvailable = qMax(d->m_model->columnCount() + (end - start + 1) - qMax(end + 1, d->m_mapFirst + d->m_mapCount), 0); | ||
|
Marek Rosa
|
r734 | } | ||
|
Marek Rosa
|
r735 | // if there are excess items available (below the mapped area) use them to repopulate mapped area | ||
| int toBeAdded = qMin(extraItemsAvailable, removedItemsCount); | ||||
| for (int k = 0; k < toBeAdded; k++) | ||||
|
Michal Klocek
|
r938 | emit d->pointAdded(d->m_mapFirst + d->m_mapCount - removedItemsCount + k); | ||
|
Marek Rosa
|
r734 | } | ||
|
sauimone
|
r743 | } else { | ||
|
Marek Rosa
|
r735 | // data was removed from XYSeries interal storage. Nothing more to do | ||
|
Marek Rosa
|
r734 | } | ||
|
Marek Rosa
|
r545 | } | ||
|
Marek Rosa
|
r877 | /*! | ||
| \fn bool QXYSeries::setModel(QAbstractItemModel *model) | ||||
| Sets the \a model to be used as a data source | ||||
|
Marek Rosa
|
r900 | \sa setModelMapping(), setModelMappingRange() | ||
|
Marek Rosa
|
r877 | */ | ||
|
Michal Klocek
|
r938 | bool QXYSeries::setModel(QAbstractItemModel *model) | ||
| { | ||||
| Q_D(QXYSeries); | ||||
|
Marek Rosa
|
r630 | // disconnect signals from old model | ||
|
Michal Klocek
|
r938 | if (d->m_model) { | ||
| QObject::disconnect(d->m_model, 0, this, 0); | ||||
| d->m_mapX = -1; | ||||
| d->m_mapY = -1; | ||||
| d->m_mapFirst = 0; | ||||
| d->m_mapCount = 0; | ||||
| d->m_mapLimited = false; | ||||
| d->m_mapOrientation = Qt::Vertical; | ||||
|
Marek Rosa
|
r630 | } | ||
| // set new model | ||||
|
sauimone
|
r743 | if (model) { | ||
|
Michal Klocek
|
r938 | d->m_model = model; | ||
|
Marek Rosa
|
r630 | return true; | ||
|
sauimone
|
r743 | } else { | ||
|
Michal Klocek
|
r938 | d->m_model = 0; | ||
|
Marek Rosa
|
r630 | return false; | ||
| } | ||||
|
Marek Rosa
|
r519 | } | ||
|
Marek Rosa
|
r900 | /*! | ||
| \fn bool QXYSeries::setModelMapping(int modelX, int modelY, Qt::Orientation orientation) | ||||
| Sets the \a modelX to be used as a data source for x coordinate and \a modelY to be used | ||||
| as a data source for y coordinate. The \a orientation paramater specifies whether the data | ||||
| is in columns or in rows. | ||||
| \sa setModel(), setModelMappingRange() | ||||
| */ | ||||
|
Marek Rosa
|
r527 | void QXYSeries::setModelMapping(int modelX, int modelY, Qt::Orientation orientation) | ||
| { | ||||
|
Michal Klocek
|
r938 | Q_D(QXYSeries); | ||
| if (d->m_model == 0) | ||||
|
Marek Rosa
|
r630 | return; | ||
|
Michal Klocek
|
r938 | d->m_mapX = modelX; | ||
| d->m_mapY = modelY; | ||||
| d->m_mapFirst = 0; | ||||
| d->m_mapOrientation = orientation; | ||||
| if (d->m_mapOrientation == Qt::Vertical) { | ||||
| connect(d->m_model,SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(modelUpdated(QModelIndex, QModelIndex))); | ||||
| connect(d->m_model,SIGNAL(rowsAboutToBeInserted(QModelIndex, int, int)), this, SLOT(modelDataAboutToBeAdded(QModelIndex,int,int))); | ||||
| connect(d->m_model,SIGNAL(rowsInserted(QModelIndex, int, int)), this, SLOT(modelDataAdded(QModelIndex,int,int))); | ||||
| connect(d->m_model, SIGNAL(rowsAboutToBeRemoved(QModelIndex, int, int)), this, SLOT(modelDataAboutToBeRemoved(QModelIndex,int,int))); | ||||
| connect(d->m_model, SIGNAL(rowsRemoved(QModelIndex, int, int)), this, SLOT(modelDataRemoved(QModelIndex,int,int))); | ||||
|
sauimone
|
r743 | } else { | ||
|
Michal Klocek
|
r938 | connect(d->m_model,SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(modelUpdated(QModelIndex, QModelIndex))); | ||
| connect(d->m_model,SIGNAL(columnsAboutToBeInserted(QModelIndex, int, int)), this, SLOT(modelDataAboutToBeAdded(QModelIndex,int,int))); | ||||
| connect(d->m_model,SIGNAL(columnsInserted(QModelIndex, int, int)), this, SLOT(modelDataAdded(QModelIndex,int,int))); | ||||
| connect(d->m_model, SIGNAL(columnsAboutToBeRemoved(QModelIndex, int, int)), this, SLOT(modelDataAboutToBeRemoved(QModelIndex,int,int))); | ||||
| connect(d->m_model, SIGNAL(columnsRemoved(QModelIndex, int, int)), this, SLOT(modelDataRemoved(QModelIndex,int,int))); | ||||
|
Marek Rosa
|
r630 | } | ||
|
Marek Rosa
|
r527 | } | ||
|
Marek Rosa
|
r900 | /*! | ||
| \fn bool QXYSeries::setModelMappingRange(int first, int count) | ||||
| Allows limiting the model mapping. | ||||
| Parameter \a first specifies which element of the model should be used as a first one of the series. | ||||
| Parameter \a count specifies how many elements should be mapped. If count is not specified (defaults to -1) | ||||
| then all the items following \a first item in a model are used. | ||||
| \sa setModel(), setModelMapping() | ||||
| */ | ||||
|
Marek Rosa
|
r864 | void QXYSeries::setModelMappingRange(int first, int count) | ||
|
Marek Rosa
|
r734 | { | ||
|
Michal Klocek
|
r938 | Q_D(QXYSeries); | ||
| d->m_mapFirst = first; | ||||
|
sauimone
|
r743 | if (count == 0) { | ||
|
Michal Klocek
|
r938 | d->m_mapLimited = false; | ||
|
sauimone
|
r743 | } else { | ||
|
Michal Klocek
|
r938 | d->m_mapCount = count; | ||
| d->m_mapLimited = true; | ||||
|
Marek Rosa
|
r734 | } | ||
| } | ||||
|
Marek Rosa
|
r527 | |||
|
Michal Klocek
|
r938 | int QXYSeries::mapFirst() const | ||
| { | ||||
| Q_D(const QXYSeries); | ||||
| return d->m_mapFirst; | ||||
| } | ||||
| int QXYSeries::mapCount() const | ||||
| { | ||||
| Q_D(const QXYSeries); | ||||
| return d->m_mapCount; | ||||
| } | ||||
| ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | ||||
| QXYSeriesPrivate::QXYSeriesPrivate(QXYSeries *q): QSeriesPrivate(q), | ||||
| m_mapX(-1), | ||||
| m_mapY(-1), | ||||
| m_mapFirst(0), | ||||
| m_mapCount(0), | ||||
| m_mapLimited(false), | ||||
| m_mapOrientation( Qt::Vertical), | ||||
| m_pointsVisible(false) | ||||
| { | ||||
| } | ||||
|
Michal Klocek
|
r943 | void QXYSeriesPrivate::scaleDomain(Domain& domain) | ||
| { | ||||
| qreal minX(domain.minX()); | ||||
| qreal minY(domain.minY()); | ||||
| qreal maxX(domain.maxX()); | ||||
| qreal maxY(domain.maxY()); | ||||
| int tickXCount(domain.tickXCount()); | ||||
| int tickYCount(domain.tickYCount()); | ||||
| Q_Q(QXYSeries); | ||||
| for (int i = 0; i < q->count(); i++) | ||||
| { | ||||
| qreal x = q->x(i); | ||||
| qreal y = q->y(i); | ||||
| minX = qMin(minX, x); | ||||
| minY = qMin(minY, y); | ||||
| maxX = qMax(maxX, x); | ||||
| maxY = qMax(maxY, y); | ||||
| } | ||||
| domain.setRangeX(minX,maxX,tickXCount); | ||||
| domain.setRangeY(minY,maxY,tickYCount); | ||||
| } | ||||
|
Michal Klocek
|
r950 | QList<LegendMarker*> QXYSeriesPrivate::createLegendMarker(QLegend* legend) | ||
| { | ||||
| Q_Q(QXYSeries); | ||||
| QList<LegendMarker*> list; | ||||
| return list << new XYLegendMarker(q,legend); | ||||
| } | ||||
|
Michal Klocek
|
r466 | #include "moc_qxyseries.cpp" | ||
|
Michal Klocek
|
r938 | #include "moc_qxyseries_p.cpp" | ||
|
Michal Klocek
|
r466 | |||
| QTCOMMERCIALCHART_END_NAMESPACE | ||||