qbarseries.cpp
487 lines
| 13.3 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 | ||||
| ** $QT_END_LICENSE$ | ||||
| ** | ||||
| ****************************************************************************/ | ||||
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r338 | #include "qbarseries.h" | ||
Michal Klocek
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r938 | #include "qbarseries_p.h" | ||
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r172 | #include "qbarset.h" | ||
|
Michal Klocek
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r938 | #include "qbarset_p.h" | ||
|
Michal Klocek
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r943 | #include "domain_p.h" | ||
|
Michal Klocek
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r950 | #include "legendmarker_p.h" | ||
|
Michal Klocek
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r943 | #include "chartdataset_p.h" | ||
| #include "charttheme_p.h" | ||||
| #include "chartanimator_p.h" | ||||
|
Michal Klocek
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r938 | |||
Marek Rosa
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r862 | #include <QAbstractItemModel> | ||
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Marek Rosa
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r877 | #include <QModelIndex> | ||
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r126 | |||
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r56 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||
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r313 | /*! | ||
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r338 | \class QBarSeries | ||
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r313 | \brief part of QtCommercial chart API. | ||
Tero Ahola
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r995 | \mainclass | ||
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r313 | |||
|
Michal Klocek
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r974 | QBarSeries represents a series of data shown as bars. One QBarSeries can contain multiple | ||
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r338 | QBarSet data sets. QBarSeries groups the data from sets to categories, which are defined | ||
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r377 | by QStringList. | ||
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r313 | |||
|
Tero Ahola
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r995 | See the \l {BarChart Example} {bar chart example} to learn how to create a simple bar chart. | ||
| \image examples_barchart.png | ||||
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r319 | |||
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r377 | \sa QBarSet, QStackedBarSeries, QPercentBarSeries | ||
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r313 | */ | ||
| /*! | ||||
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r1008 | \fn void QBarSeries::clicked(QBarSet *barset, QString category) | ||
|
Tero Ahola
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r973 | |||
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r1008 | The signal is emitted if the user clicks with a mouse on top of QBarSet \a barset of category \a category | ||
|
Tero Ahola
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r973 | contained by the series. | ||
| */ | ||||
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r980 | /*! | ||
| \fn void QBarSeries::hovered(QBarSet* barset, bool status) | ||||
| The signal is emitted if mouse is hovered on top of series. | ||||
| Parameter \a barset is the pointer of barset, where hover happened. | ||||
| Parameter \a status is true, if mouse entered on top of series, false if mouse left from top of series. | ||||
| */ | ||||
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r313 | /*! | ||
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r387 | Constructs empty QBarSeries. Parameter \a categories defines the categories for chart. | ||
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r338 | QBarSeries is QObject which is a child of a \a parent. | ||
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r313 | */ | ||
|
Tero Ahola
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r973 | QBarSeries::QBarSeries(QBarCategories categories, QObject *parent) : | ||
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Tero Ahola
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r988 | QAbstractSeries(*new QBarSeriesPrivate(categories, this),parent) | ||
|
Michal Klocek
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r938 | { | ||
| } | ||||
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r980 | /*! | ||
| Destructs barseries and owned barsets. | ||||
| */ | ||||
| QBarSeries::~QBarSeries() | ||||
| { | ||||
| // NOTE: d_ptr destroyed by QObject | ||||
| } | ||||
|
Tero Ahola
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r973 | /*! | ||
| \internal | ||||
| */ | ||||
| QBarSeries::QBarSeries(QBarSeriesPrivate &d, QObject *parent) : | ||||
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Tero Ahola
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r988 | QAbstractSeries(d,parent) | ||
|
Michal Klocek
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r943 | { | ||
| } | ||||
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r980 | /*! | ||
| Returns the type of series. Derived classes override this. | ||||
| */ | ||||
|
Tero Ahola
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r988 | QAbstractSeries::QSeriesType QBarSeries::type() const | ||
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r71 | { | ||
|
Tero Ahola
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r988 | return QAbstractSeries::SeriesTypeBar; | ||
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r71 | } | ||
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r313 | /*! | ||
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r425 | Adds a set of bars to series. Takes ownership of \a set. | ||
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r313 | */ | ||
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r776 | void QBarSeries::appendBarSet(QBarSet *set) | ||
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r171 | { | ||
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r934 | Q_D(QBarSeries); | ||
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r1005 | d->m_barSets.append(set); | ||
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r1008 | QObject::connect(set->d_ptr.data(), SIGNAL(updatedBars()), d, SLOT(barsetChanged())); | ||
|
Michal Klocek
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r938 | emit d->restructuredBars(); | ||
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r171 | } | ||
|
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r313 | /*! | ||
|
Michal Klocek
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r974 | Removes a set of bars from series. Releases ownership of \a set. Doesn't delete \a set. | ||
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r313 | */ | ||
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r338 | void QBarSeries::removeBarSet(QBarSet *set) | ||
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r171 | { | ||
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r934 | Q_D(QBarSeries); | ||
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r1005 | if (d->m_barSets.contains(set)) { | ||
| d->m_barSets.removeOne(set); | ||||
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r1008 | QObject::disconnect(set, SIGNAL(updatedBars()), this, SLOT(barsetChanged())); | ||
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r1005 | emit d->restructuredBars(); | ||
| } | ||||
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r850 | } | ||
| /*! | ||||
| Adds a list of barsets to series. Takes ownership of \a sets. | ||||
| */ | ||||
| void QBarSeries::appendBarSets(QList<QBarSet* > sets) | ||||
| { | ||||
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r934 | Q_D(QBarSeries); | ||
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r1008 | foreach (QBarSet* set, sets) { | ||
| d->m_barSets.append(set); | ||||
| QObject::connect(set, SIGNAL(updatedBars()), this, SLOT(barsetChanged())); | ||||
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r850 | } | ||
|
Michal Klocek
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r938 | emit d->restructuredBars(); | ||
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r850 | } | ||
| /*! | ||||
|
Michal Klocek
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r974 | Removes a list of barsets from series. Releases ownership of \a sets. Doesn't delete \a sets. | ||
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r850 | */ | ||
| void QBarSeries::removeBarSets(QList<QBarSet* > sets) | ||||
| { | ||||
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r934 | Q_D(QBarSeries); | ||
|
Michal Klocek
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r938 | |||
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r1008 | foreach (QBarSet* set, sets) { | ||
| if (d->m_barSets.contains(set)) { | ||||
| d->m_barSets.removeOne(set); | ||||
| QObject::disconnect(set, SIGNAL(updatedBars()), this, SLOT(barsetChanged())); | ||||
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r1005 | } | ||
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r850 | } | ||
|
Michal Klocek
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r938 | emit d->restructuredBars(); | ||
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r172 | } | ||
|
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r313 | /*! | ||
| Returns number of sets in series. | ||||
| */ | ||||
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r776 | int QBarSeries::barsetCount() const | ||
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r214 | { | ||
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r934 | Q_D(const QBarSeries); | ||
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r1005 | return d->m_barSets.count(); | ||
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r214 | } | ||
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r323 | /*! | ||
| Returns number of categories in series | ||||
| */ | ||||
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r776 | int QBarSeries::categoryCount() const | ||
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r323 | { | ||
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r934 | Q_D(const QBarSeries); | ||
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r1005 | return d->m_categories.count(); | ||
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r323 | } | ||
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r313 | /*! | ||
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r357 | Returns a list of sets in series. Keeps ownership of sets. | ||
| */ | ||||
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r776 | QList<QBarSet*> QBarSeries::barSets() const | ||
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r214 | { | ||
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r934 | Q_D(const QBarSeries); | ||
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r1005 | return d->m_barSets; | ||
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r214 | } | ||
|
Marek Rosa
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r879 | /*! | ||
| \fn bool QBarSeries::setModel(QAbstractItemModel *model) | ||||
| Sets the \a model to be used as a data source | ||||
| */ | ||||
|
Tero Ahola
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r737 | bool QBarSeries::setModel(QAbstractItemModel *model) | ||
|
Marek Rosa
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r527 | { | ||
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r934 | Q_D(QBarSeries); | ||
| return d->setModel(model); | ||||
|
Marek Rosa
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r527 | } | ||
|
Marek Rosa
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r900 | /*! | ||
| \fn bool QBarSeries::setModelMapping(int categories, int bottomBoundry, int topBoundry, Qt::Orientation orientation) | ||||
| Sets column/row specified by \a categories to be used as a list of bar series categories. | ||||
| Parameter \a bottomBoundry indicates the column/row where the first bar set is located in the model. | ||||
| Parameter \a topBoundry indicates the column/row where the last bar set is located in the model. | ||||
| All the columns/rows inbetween those two values are also used as data for bar sets. | ||||
|
Michal Klocek
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r974 | The \a orientation parameter specifies whether the data is in columns or in rows. | ||
|
Marek Rosa
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r900 | */ | ||
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r934 | void QBarSeries::setModelMapping(int categories, int bottomBoundary, int topBoundary, Qt::Orientation orientation) | ||
|
Marek Rosa
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r527 | { | ||
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r934 | Q_D(QBarSeries); | ||
| d->setModelMapping(categories,bottomBoundary,topBoundary,orientation); | ||||
|
Marek Rosa
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r527 | } | ||
|
Tero Ahola
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r973 | /*! | ||
| Returns the bar categories of the series. | ||||
| */ | ||||
|
Michal Klocek
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r703 | QBarCategories QBarSeries::categories() const | ||
| { | ||||
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r934 | Q_D(const QBarSeries); | ||
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r1005 | return d->m_categories; | ||
|
Michal Klocek
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r703 | } | ||
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r839 | /*! | ||
| Sets the visibility of labels in series to \a visible | ||||
| */ | ||||
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r820 | void QBarSeries::setLabelsVisible(bool visible) | ||
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r813 | { | ||
| foreach (QBarSet* s, barSets()) { | ||||
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r820 | s->setLabelsVisible(visible); | ||
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r813 | } | ||
| } | ||||
|
Michal Klocek
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r938 | /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | ||
|
Tero Ahola
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r988 | QBarSeriesPrivate::QBarSeriesPrivate(QBarCategories categories, QBarSeries *q) : | ||
| QAbstractSeriesPrivate(q), | ||||
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r1005 | m_categories(categories), | ||
|
Michal Klocek
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r938 | m_mapCategories(-1), | ||
| m_mapBarBottom(-1), | ||||
| m_mapBarTop(-1), | ||||
| m_mapOrientation(Qt::Vertical) | ||||
| { | ||||
| } | ||||
| QBarSet* QBarSeriesPrivate::barsetAt(int index) | ||||
| { | ||||
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r1005 | return m_barSets.at(index); | ||
|
Michal Klocek
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r938 | } | ||
| QString QBarSeriesPrivate::categoryName(int category) | ||||
| { | ||||
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r1005 | return m_categories.at(category); | ||
|
Michal Klocek
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r938 | } | ||
| qreal QBarSeriesPrivate::min() | ||||
| { | ||||
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r1005 | if (m_barSets.count() <= 0) { | ||
| return 0; | ||||
| } | ||||
| qreal min = INT_MAX; | ||||
| for (int i = 0; i < m_barSets.count(); i++) { | ||||
| int categoryCount = m_barSets.at(i)->count(); | ||||
| for (int j = 0; j < categoryCount; j++) { | ||||
| qreal temp = m_barSets.at(i)->at(j); | ||||
| if (temp < min) | ||||
| min = temp; | ||||
| } | ||||
| } | ||||
| return min; | ||||
|
Michal Klocek
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r938 | } | ||
| qreal QBarSeriesPrivate::max() | ||||
| { | ||||
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r1005 | if (m_barSets.count() <= 0) { | ||
| return 0; | ||||
| } | ||||
| qreal max = INT_MIN; | ||||
| for (int i = 0; i < m_barSets.count(); i++) { | ||||
| int categoryCount = m_barSets.at(i)->count(); | ||||
| for (int j = 0; j < categoryCount; j++) { | ||||
| qreal temp = m_barSets.at(i)->at(j); | ||||
| if (temp > max) | ||||
| max = temp; | ||||
| } | ||||
| } | ||||
| return max; | ||||
|
Michal Klocek
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r938 | } | ||
| qreal QBarSeriesPrivate::valueAt(int set, int category) | ||||
| { | ||||
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r1005 | if ((set < 0) || (set >= m_barSets.count())) { | ||
| // No set, no value. | ||||
| return 0; | ||||
| } else if ((category < 0) || (category >= m_barSets.at(set)->count())) { | ||||
| // No category, no value. | ||||
| return 0; | ||||
| } | ||||
| return m_barSets.at(set)->at(category); | ||||
|
Michal Klocek
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r938 | } | ||
| qreal QBarSeriesPrivate::percentageAt(int set, int category) | ||||
| { | ||||
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r1005 | if ((set < 0) || (set >= m_barSets.count())) { | ||
| // No set, no value. | ||||
| return 0; | ||||
| } else if ((category < 0) || (category >= m_barSets.at(set)->count())) { | ||||
| // No category, no value. | ||||
| return 0; | ||||
| } | ||||
| qreal value = m_barSets.at(set)->at(category); | ||||
| qreal sum = categorySum(category); | ||||
| if ( qFuzzyIsNull(sum) ) { | ||||
| return 0; | ||||
| } | ||||
| return value / sum; | ||||
|
Michal Klocek
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r938 | } | ||
| qreal QBarSeriesPrivate::categorySum(int category) | ||||
| { | ||||
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r1005 | qreal sum(0); | ||
| int count = m_barSets.count(); // Count sets | ||||
| for (int set = 0; set < count; set++) { | ||||
| if (category < m_barSets.at(set)->count()) | ||||
| sum += m_barSets.at(set)->at(category); | ||||
| } | ||||
| return sum; | ||||
|
Michal Klocek
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r938 | } | ||
| qreal QBarSeriesPrivate::absoluteCategorySum(int category) | ||||
| { | ||||
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r1005 | qreal sum(0); | ||
| int count = m_barSets.count(); // Count sets | ||||
| for (int set = 0; set < count; set++) { | ||||
| if (category < m_barSets.at(set)->count()) | ||||
| sum += qAbs(m_barSets.at(set)->at(category)); | ||||
| } | ||||
| return sum; | ||||
|
Michal Klocek
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r938 | } | ||
| qreal QBarSeriesPrivate::maxCategorySum() | ||||
| { | ||||
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r1005 | qreal max = INT_MIN; | ||
| int count = m_categories.count(); | ||||
| for (int i = 0; i < count; i++) { | ||||
| qreal sum = categorySum(i); | ||||
| if (sum > max) | ||||
| max = sum; | ||||
| } | ||||
| return max; | ||||
|
Michal Klocek
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r938 | } | ||
| bool QBarSeriesPrivate::setModel(QAbstractItemModel *model) | ||||
| { | ||||
| // disconnect signals from old model | ||||
| if(m_model) | ||||
| { | ||||
| disconnect(m_model, 0, this, 0); | ||||
| m_mapCategories = -1; | ||||
| m_mapBarBottom = -1; | ||||
| m_mapBarTop = -1; | ||||
| m_mapOrientation = Qt::Vertical; | ||||
| } | ||||
| // set new model | ||||
| if(model) | ||||
| { | ||||
| m_model = model; | ||||
| return true; | ||||
| } | ||||
| else | ||||
| { | ||||
| m_model = 0; | ||||
| return false; | ||||
| } | ||||
| } | ||||
| void QBarSeriesPrivate::setModelMapping(int categories, int bottomBoundry, int topBoundry, Qt::Orientation orientation) | ||||
| { | ||||
| Q_Q(QBarSeries); | ||||
|
Marek Rosa
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r947 | if (m_model == 0) | ||
|
Michal Klocek
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r938 | return; | ||
| m_mapCategories = categories; | ||||
| m_mapBarBottom = bottomBoundry; | ||||
| m_mapBarTop = topBoundry; | ||||
| m_mapOrientation = orientation; | ||||
| // connect the signals | ||||
|
Marek Rosa
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r990 | connect(m_model,SIGNAL(dataChanged(QModelIndex,QModelIndex)), | ||
| this, SLOT(modelUpdated(QModelIndex,QModelIndex))); | ||||
|
Michal Klocek
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r938 | |||
| // create the initial bars | ||||
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r1005 | m_categories.clear(); | ||
|
Michal Klocek
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r938 | if (m_mapOrientation == Qt::Vertical) { | ||
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r1005 | for (int k = 0; k < m_model->rowCount(); k++) { | ||
| m_categories << m_model->data(m_model->index(k, m_mapCategories), Qt::DisplayRole).toString(); | ||||
| } | ||||
|
Michal Klocek
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r938 | |||
| for (int i = m_mapBarBottom; i <= m_mapBarTop; i++) { | ||||
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Marek Rosa
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r1012 | QBarSet* barSet = new QBarSet(m_model->headerData(i, Qt::Horizontal, Qt::DisplayRole).toString()); | ||
|
Marek Rosa
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r990 | for(int m = 0; m < m_model->rowCount(); m++) | ||
|
Michal Klocek
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r938 | *barSet << m_model->data(m_model->index(m, i), Qt::DisplayRole).toDouble(); | ||
| q->appendBarSet(barSet); | ||||
| } | ||||
| } else { | ||||
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r1005 | for (int k = 0; k < m_model->columnCount(); k++) { | ||
| m_categories << m_model->data(m_model->index(m_mapCategories, k), Qt::DisplayRole).toString(); | ||||
| } | ||||
|
Michal Klocek
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r938 | |||
| for (int i = m_mapBarBottom; i <= m_mapBarTop; i++) { | ||||
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Marek Rosa
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r1012 | QBarSet* barSet = new QBarSet(m_model->headerData(i, Qt::Vertical, Qt::DisplayRole).toString()); | ||
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Marek Rosa
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r990 | for(int m = 0; m < m_model->columnCount(); m++) | ||
|
Michal Klocek
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r938 | *barSet << m_model->data(m_model->index(i, m), Qt::DisplayRole).toDouble(); | ||
| q->appendBarSet(barSet); | ||||
| } | ||||
| } | ||||
| } | ||||
| void QBarSeriesPrivate::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight) | ||||
| { | ||||
| Q_UNUSED(bottomRight) | ||||
| if (m_mapOrientation == Qt::Vertical) | ||||
| { | ||||
| // model update is relevant to BarSeries if the change was made to the part of the model that was mapped to BarSeries | ||||
|
Marek Rosa
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r990 | if (topLeft.column() >= m_mapBarBottom && topLeft.column() <= m_mapBarTop) | ||
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sauimone
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r993 | barsetAt(topLeft.column() - m_mapBarBottom)->replace(topLeft.row(), m_model->data(topLeft, Qt::DisplayRole).toDouble()); | ||
|
Michal Klocek
|
r938 | } | ||
| else | ||||
| { | ||||
| // model update is relevant to BarSeries if the change was made to the part of the model that was mapped to BarSeries | ||||
|
Marek Rosa
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r990 | if (topLeft.row() >= m_mapBarBottom && topLeft.row() <= m_mapBarTop) | ||
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sauimone
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r993 | barsetAt(topLeft.row() - m_mapBarBottom)->replace(topLeft.column(), m_model->data(topLeft, Qt::DisplayRole).toDouble()); | ||
|
Michal Klocek
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r938 | } | ||
| } | ||||
| void QBarSeriesPrivate::barsetChanged() | ||||
| { | ||||
| emit updatedBars(); | ||||
| } | ||||
|
sauimone
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r813 | |||
|
Michal Klocek
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r943 | void QBarSeriesPrivate::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()); | ||||
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sauimone
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r1005 | qreal x = m_categories.count(); | ||
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sauimone
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r962 | qreal y = max(); | ||
|
Michal Klocek
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r943 | minX = qMin(minX, x); | ||
| minY = qMin(minY, y); | ||||
| maxX = qMax(maxX, x); | ||||
| maxY = qMax(maxY, y); | ||||
| tickXCount = x+1; | ||||
| domain.setRangeX(minX,maxX,tickXCount); | ||||
| domain.setRangeY(minY,maxY,tickYCount); | ||||
| } | ||||
| Chart* QBarSeriesPrivate::createGraphics(ChartPresenter* presenter) | ||||
| { | ||||
| Q_Q(QBarSeries); | ||||
| BarChartItem* bar = new BarChartItem(q,presenter); | ||||
| if(presenter->animationOptions().testFlag(QChart::SeriesAnimations)) { | ||||
| presenter->animator()->addAnimation(bar); | ||||
| } | ||||
| presenter->chartTheme()->decorate(q, presenter->dataSet()->seriesIndex(q)); | ||||
| return bar; | ||||
| } | ||||
|
Michal Klocek
|
r950 | QList<LegendMarker*> QBarSeriesPrivate::createLegendMarker(QLegend* legend) | ||
| { | ||||
| Q_Q(QBarSeries); | ||||
| QList<LegendMarker*> markers; | ||||
| foreach(QBarSet* set, q->barSets()) { | ||||
| BarLegendMarker* marker = new BarLegendMarker(q,set,legend); | ||||
| markers << marker; | ||||
| } | ||||
| return markers; | ||||
| } | ||||
|
sauimone
|
r338 | #include "moc_qbarseries.cpp" | ||
|
Michal Klocek
|
r938 | #include "moc_qbarseries_p.cpp" | ||
|
sauimone
|
r71 | |||
|
sauimone
|
r56 | QTCOMMERCIALCHART_END_NAMESPACE | ||