qpieseries.cpp
606 lines
| 14.0 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 | ||||
| ** $QT_END_LICENSE$ | ||||
| ** | ||||
| ****************************************************************************/ | ||||
|
Jani Honkonen
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r142 | #include "qpieseries.h" | ||
Michal Klocek
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r938 | #include "qpieseries_p.h" | ||
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r818 | #include "qpieslice.h" | ||
| #include "pieslicedata_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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r950 | #include "legendmarker_p.h" | ||
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r142 | |||
| QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
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r320 | /*! | ||
| \class QPieSeries | ||||
| \brief Pie series API for QtCommercial Charts | ||||
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r952 | The pie series defines a pie chart which consists of pie slices which are defined as QPieSlice objects. | ||
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r320 | The slices can have any values as the QPieSeries will calculate its relative value to the sum of all slices. | ||
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r386 | The actual slice size is determined by that relative value. | ||
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r320 | |||
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r952 | Pie size and position on the chart is controlled by using relative values which range from 0.0 to 1.0 | ||
| These relate to the actual chart rectangle. | ||||
| By default the pie is defined as a full pie but it can also be a partial pie. | ||||
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r320 | This can be done by setting a starting angle and angle span to the series. | ||
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r952 | Full pie is 360 degrees where 0 is at 12 a'clock. | ||
Tero Ahola
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r995 | |||
| See the \l {PieChart Example} {pie chart example} to learn how to create a simple pie chart. | ||||
| \image examples_piechart.png | ||||
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Jani Honkonen
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r320 | */ | ||
Marek Rosa
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r924 | /*! | ||
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r928 | \property QPieSeries::horizontalPosition | ||
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r932 | \brief Defines the horizontal position of the pie. | ||
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r924 | |||
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r932 | The value is a relative value to the chart rectangle where: | ||
| \list | ||||
| \o 0.0 is the absolute left. | ||||
| \o 1.0 is the absolute right. | ||||
| \endlist | ||||
| Default value is 0.5 (center). | ||||
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Marek Rosa
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r924 | */ | ||
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r928 | /*! | ||
| \property QPieSeries::verticalPosition | ||||
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r932 | \brief Defines the vertical position of the pie. | ||
| The value is a relative value to the chart rectangle where: | ||||
| \list | ||||
| \o 0.0 is the absolute top. | ||||
| \o 1.0 is the absolute bottom. | ||||
| \endlist | ||||
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r928 | |||
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r932 | Default value is 0.5 (center). | ||
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r928 | */ | ||
| /*! | ||||
| \property QPieSeries::size | ||||
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r932 | \brief Defines the pie size. | ||
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r928 | |||
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r932 | The value is a relative value to the chart rectangle where: | ||
| \list | ||||
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r974 | \o 0.0 is the minimum size (pie not drawn). | ||
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r932 | \o 1.0 is the maximum size that can fit the chart. | ||
| \endlist | ||||
| Default value is 0.7. | ||||
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r928 | */ | ||
| /*! | ||||
| \property QPieSeries::startAngle | ||||
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r932 | \brief Defines the starting angle of the pie. | ||
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r928 | |||
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r932 | Full pie is 360 degrees where 0 degrees is at 12 a'clock. | ||
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r928 | |||
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r932 | Default is value is 0. | ||
| */ | ||||
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r928 | |||
| /*! | ||||
| \property QPieSeries::endAngle | ||||
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r932 | \brief Defines the ending angle of the pie. | ||
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r928 | |||
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r932 | Full pie is 360 degrees where 0 degrees is at 12 a'clock. | ||
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r928 | |||
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r932 | Default is value is 360. | ||
| */ | ||||
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r928 | |||
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r1224 | /*! | ||
| \property QPieSeries::count | ||||
| \brief Number of slices in the series. | ||||
| */ | ||||
| /*! | ||||
| \property QPieSeries::sum | ||||
| \brief Sum of all slices. | ||||
| The series keeps track of the sum of all slices it holds. | ||||
| */ | ||||
|
Marek Rosa
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r924 | |||
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r314 | /*! | ||
| Constructs a series object which is a child of \a parent. | ||||
| */ | ||||
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r203 | QPieSeries::QPieSeries(QObject *parent) : | ||
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r988 | QAbstractSeries(*new QPieSeriesPrivate(this),parent) | ||
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r203 | { | ||
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r157 | |||
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r203 | } | ||
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r174 | |||
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r314 | /*! | ||
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r933 | Destroys the series and its slices. | ||
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r314 | */ | ||
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r203 | QPieSeries::~QPieSeries() | ||
| { | ||||
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r669 | // NOTE: d_prt destroyed by QObject | ||
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r203 | } | ||
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r314 | /*! | ||
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r320 | Returns QChartSeries::SeriesTypePie. | ||
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Jani Honkonen
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r314 | */ | ||
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Michal Klocek
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r1107 | QAbstractSeries::SeriesType QPieSeries::type() const | ||
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r314 | { | ||
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Tero Ahola
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r988 | return QAbstractSeries::SeriesTypePie; | ||
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Jani Honkonen
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r314 | } | ||
| /*! | ||||
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r933 | Appends an array of \a slices to the series. | ||
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r314 | Slice ownership is passed to the series. | ||
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r1224 | |||
| Returns true if append was successfull. | ||||
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r314 | */ | ||
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r1104 | bool QPieSeries::append(QList<QPieSlice*> slices) | ||
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r203 | { | ||
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r669 | Q_D(QPieSeries); | ||
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r1104 | if (slices.count() == 0) | ||
| return false; | ||||
| foreach (QPieSlice* s, slices) { | ||||
| if (!s || d->m_slices.contains(s)) | ||||
| return false; | ||||
| } | ||||
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r203 | foreach (QPieSlice* s, slices) { | ||
| s->setParent(this); | ||||
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r669 | d->m_slices << s; | ||
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r174 | } | ||
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r157 | |||
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r669 | d->updateDerivativeData(); | ||
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r174 | |||
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r203 | foreach (QPieSlice* s, slices) { | ||
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r1224 | connect(s, SIGNAL(valueChanged()), d, SLOT(sliceChanged())); | ||
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r1009 | connect(s, SIGNAL(clicked()), d, SLOT(sliceClicked())); | ||
| connect(s, SIGNAL(hovered(bool)), d, SLOT(sliceHovered(bool))); | ||||
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Jani Honkonen
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r203 | } | ||
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r1213 | emit added(slices); | ||
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r1104 | |||
| return true; | ||||
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r142 | } | ||
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Jani Honkonen
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r314 | /*! | ||
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r933 | Appends a single \a slice to the series. | ||
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r314 | Slice ownership is passed to the series. | ||
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r1224 | |||
| Returns true if append was succesfull. | ||||
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r314 | */ | ||
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r1104 | bool QPieSeries::append(QPieSlice* slice) | ||
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r142 | { | ||
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r1104 | return append(QList<QPieSlice*>() << slice); | ||
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r142 | } | ||
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r415 | /*! | ||
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r933 | Appends a single \a slice to the series and returns a reference to the series. | ||
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r415 | Slice ownership is passed to the series. | ||
| */ | ||||
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r406 | QPieSeries& QPieSeries::operator << (QPieSlice* slice) | ||
| { | ||||
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r796 | append(slice); | ||
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r406 | return *this; | ||
| } | ||||
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r314 | |||
| /*! | ||||
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r1206 | Appends a single slice to the series with give \a value and \a label. | ||
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r314 | Slice ownership is passed to the series. | ||
| */ | ||||
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r1206 | QPieSlice* QPieSeries::append(QString label, qreal value) | ||
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r142 | { | ||
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r1206 | QPieSlice* slice = new QPieSlice(label, value); | ||
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r796 | append(slice); | ||
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r203 | return slice; | ||
| } | ||||
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r174 | |||
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r809 | /*! | ||
| Inserts a single \a slice to the series before the slice at \a index position. | ||||
| Slice ownership is passed to the series. | ||||
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r1224 | |||
| Returns true if insert was successfull. | ||||
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Jani Honkonen
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r809 | */ | ||
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r1104 | bool QPieSeries::insert(int index, QPieSlice* slice) | ||
|
Marek Rosa
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r604 | { | ||
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r669 | Q_D(QPieSeries); | ||
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r1104 | |||
| if (index < 0 || index > d->m_slices.count()) | ||||
| return false; | ||||
| if (!slice || d->m_slices.contains(slice)) | ||||
| return false; | ||||
|
Marek Rosa
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r1204 | slice->setParent(this); | ||
| d->m_slices.insert(index, slice); | ||||
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Marek Rosa
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r1195 | |||
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r1204 | d->updateDerivativeData(); | ||
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r604 | |||
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r1224 | connect(slice, SIGNAL(valueChanged()), d, SLOT(sliceChanged())); | ||
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Marek Rosa
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r1204 | connect(slice, SIGNAL(clicked()), d, SLOT(sliceClicked())); | ||
| connect(slice, SIGNAL(hovered(bool)), d, SLOT(sliceHovered(bool))); | ||||
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Marek Rosa
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r604 | |||
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r1213 | emit added(QList<QPieSlice*>() << slice); | ||
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r1104 | |||
| return true; | ||||
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Marek Rosa
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r604 | } | ||
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Jani Honkonen
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r314 | /*! | ||
| Removes a single \a slice from the series and deletes the slice. | ||||
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r320 | |||
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r952 | Do not reference the pointer after this call. | ||
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r1224 | |||
| Returns true if remove was successfull. | ||||
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r314 | */ | ||
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r1104 | bool QPieSeries::remove(QPieSlice* slice) | ||
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Jani Honkonen
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r203 | { | ||
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r669 | Q_D(QPieSeries); | ||
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Jani Honkonen
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r1104 | |||
| if (!d->m_slices.removeOne(slice)) | ||||
| return false; | ||||
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r174 | |||
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r669 | d->updateDerivativeData(); | ||
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r174 | |||
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r1213 | emit removed(QList<QPieSlice*>() << slice); | ||
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r621 | |||
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r203 | delete slice; | ||
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r823 | slice = 0; | ||
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r1104 | |||
| return true; | ||||
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r142 | } | ||
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r314 | /*! | ||
| Clears all slices from the series. | ||||
| */ | ||||
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r203 | void QPieSeries::clear() | ||
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r142 | { | ||
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r669 | Q_D(QPieSeries); | ||
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Marek Rosa
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r1204 | if (d->m_slices.count() == 0) | ||
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r203 | return; | ||
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r174 | |||
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r1204 | QList<QPieSlice*> slices = d->m_slices; | ||
| foreach (QPieSlice* s, d->m_slices) { | ||||
| d->m_slices.removeOne(s); | ||||
| delete s; | ||||
| } | ||||
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r566 | |||
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r1204 | d->updateDerivativeData(); | ||
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r621 | |||
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r1213 | emit removed(slices); | ||
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r142 | } | ||
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r314 | /*! | ||
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r933 | returns the number of the slices in this series. | ||
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r314 | */ | ||
| int QPieSeries::count() const | ||||
| { | ||||
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r669 | Q_D(const QPieSeries); | ||
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Marek Rosa
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r1204 | return d->m_slices.count(); | ||
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r314 | } | ||
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r621 | /*! | ||
| Returns true is the series is empty. | ||||
| */ | ||||
| bool QPieSeries::isEmpty() const | ||||
| { | ||||
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Jani Honkonen
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r669 | Q_D(const QPieSeries); | ||
| return d->m_slices.isEmpty(); | ||||
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Jani Honkonen
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r621 | } | ||
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Jani Honkonen
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r314 | /*! | ||
| Returns a list of slices that belong to this series. | ||||
| */ | ||||
| QList<QPieSlice*> QPieSeries::slices() const | ||||
| { | ||||
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r669 | Q_D(const QPieSeries); | ||
| return d->m_slices; | ||||
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Jani Honkonen
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r314 | } | ||
|
Tero Ahola
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r884 | void QPieSeries::setHorizontalPosition(qreal relativePosition) | ||
| { | ||||
| Q_D(QPieSeries); | ||||
| if (d->setRealValue(d->m_pieRelativeHorPos, relativePosition, 1.0)) | ||||
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Jani Honkonen
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r1009 | emit d->piePositionChanged(); | ||
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Tero Ahola
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r884 | } | ||
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r454 | |||
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Tero Ahola
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r884 | void QPieSeries::setVerticalPosition(qreal relativePosition) | ||
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Jani Honkonen
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r142 | { | ||
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Jani Honkonen
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r669 | Q_D(QPieSeries); | ||
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Tero Ahola
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r884 | if (d->setRealValue(d->m_pieRelativeVerPos, relativePosition, 1.0)) | ||
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Jani Honkonen
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r1009 | emit d->piePositionChanged(); | ||
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Jani Honkonen
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r142 | } | ||
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Tero Ahola
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r884 | qreal QPieSeries::horizontalPosition() const | ||
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Jani Honkonen
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r142 | { | ||
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Jani Honkonen
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r669 | Q_D(const QPieSeries); | ||
| return d->m_pieRelativeHorPos; | ||||
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Jani Honkonen
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r142 | } | ||
|
Tero Ahola
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r884 | qreal QPieSeries::verticalPosition() const | ||
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Jani Honkonen
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r314 | { | ||
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Jani Honkonen
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r669 | Q_D(const QPieSeries); | ||
| return d->m_pieRelativeVerPos; | ||||
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Jani Honkonen
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r314 | } | ||
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Jani Honkonen
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r498 | void QPieSeries::setPieSize(qreal relativeSize) | ||
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Jani Honkonen
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r437 | { | ||
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Jani Honkonen
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r669 | Q_D(QPieSeries); | ||
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Tero Ahola
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r884 | if (d->setRealValue(d->m_pieRelativeSize, relativeSize, 1.0)) | ||
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Jani Honkonen
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r1009 | emit d->pieSizeChanged(); | ||
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Jani Honkonen
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r437 | } | ||
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Jani Honkonen
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r314 | |||
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Jani Honkonen
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r498 | qreal QPieSeries::pieSize() const | ||
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Jani Honkonen
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r203 | { | ||
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Jani Honkonen
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r669 | Q_D(const QPieSeries); | ||
| return d->m_pieRelativeSize; | ||||
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Jani Honkonen
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r437 | } | ||
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Jani Honkonen
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r498 | void QPieSeries::setPieStartAngle(qreal angle) | ||
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Jani Honkonen
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r437 | { | ||
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Jani Honkonen
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r669 | Q_D(QPieSeries); | ||
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Jani Honkonen
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r1207 | if (qFuzzyIsNull(d->m_pieStartAngle - angle)) | ||
| return; | ||||
| d->m_pieStartAngle = angle; | ||||
| d->updateDerivativeData(); | ||||
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Jani Honkonen
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r203 | } | ||
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Jani Honkonen
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r498 | qreal QPieSeries::pieStartAngle() const | ||
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Jani Honkonen
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r437 | { | ||
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r669 | Q_D(const QPieSeries); | ||
| return d->m_pieStartAngle; | ||||
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Jani Honkonen
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r437 | } | ||
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Jani Honkonen
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r454 | /*! | ||
| Sets the end angle of the pie. | ||||
| Full pie is 360 degrees where 0 degrees is at 12 a'clock. | ||||
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Jani Honkonen
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r498 | \a angle must be greater than start angle. | ||
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r454 | |||
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r498 | \sa pieEndAngle(), pieStartAngle(), setPieStartAngle() | ||
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Jani Honkonen
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r454 | */ | ||
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Jani Honkonen
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r498 | void QPieSeries::setPieEndAngle(qreal angle) | ||
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Jani Honkonen
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r437 | { | ||
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Jani Honkonen
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r669 | Q_D(QPieSeries); | ||
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Jani Honkonen
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r1207 | if (qFuzzyIsNull(d->m_pieEndAngle - angle)) | ||
| return; | ||||
| d->m_pieEndAngle = angle; | ||||
| d->updateDerivativeData(); | ||||
|
Jani Honkonen
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r437 | } | ||
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Jani Honkonen
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r454 | /*! | ||
| Returns the end angle of the pie. | ||||
| Full pie is 360 degrees where 0 degrees is at 12 a'clock. | ||||
|
Jani Honkonen
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r498 | \sa setPieEndAngle(), pieStartAngle(), setPieStartAngle() | ||
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Jani Honkonen
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r454 | */ | ||
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Jani Honkonen
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r498 | qreal QPieSeries::pieEndAngle() const | ||
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Jani Honkonen
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r437 | { | ||
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Jani Honkonen
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r669 | Q_D(const QPieSeries); | ||
| return d->m_pieEndAngle; | ||||
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Jani Honkonen
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r437 | } | ||
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Jani Honkonen
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r314 | /*! | ||
| Sets the all the slice labels \a visible or invisible. | ||||
| \sa QPieSlice::isLabelVisible(), QPieSlice::setLabelVisible() | ||||
| */ | ||||
|
Jani Honkonen
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r203 | void QPieSeries::setLabelsVisible(bool visible) | ||
| { | ||||
|
Jani Honkonen
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r669 | Q_D(QPieSeries); | ||
| foreach (QPieSlice* s, d->m_slices) | ||||
|
Jani Honkonen
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r203 | s->setLabelVisible(visible); | ||
| } | ||||
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Jani Honkonen
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r406 | /*! | ||
| Returns the sum of all slice values in this series. | ||||
|
Jani Honkonen
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r952 | \sa QPieSlice::value(), QPieSlice::setValue(), QPieSlice::percentage() | ||
|
Jani Honkonen
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r406 | */ | ||
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Jani Honkonen
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r939 | qreal QPieSeries::sum() const | ||
|
Jani Honkonen
|
r406 | { | ||
|
Jani Honkonen
|
r669 | Q_D(const QPieSeries); | ||
|
Jani Honkonen
|
r939 | return d->m_sum; | ||
|
Jani Honkonen
|
r406 | } | ||
|
Jani Honkonen
|
r1224 | /*! | ||
| \fn void QPieSeries::added(QList<QPieSlice*> slices) | ||||
| This signal is emitted when \a slices have been added to the series. | ||||
| \sa append(), insert() | ||||
| */ | ||||
| /*! | ||||
| \fn void QPieSeries::removed(QList<QPieSlice*> slices) | ||||
| This signal is emitted when \a slices have been removed from the series. | ||||
| \sa remove() | ||||
| */ | ||||
|
Jani Honkonen
|
r314 | /*! | ||
|
Jani Honkonen
|
r1009 | \fn void QPieSeries::clicked(QPieSlice* slice) | ||
|
Jani Honkonen
|
r314 | |||
|
Jani Honkonen
|
r1009 | This signal is emitted when a \a slice has been clicked. | ||
|
Jani Honkonen
|
r314 | |||
| \sa QPieSlice::clicked() | ||||
| */ | ||||
| /*! | ||||
|
Jani Honkonen
|
r1009 | \fn void QPieSeries::hovered(QPieSlice* slice, bool state) | ||
|
Jani Honkonen
|
r314 | |||
|
Jani Honkonen
|
r1009 | This signal is emitted when user has hovered over or away from the \a slice. | ||
|
Jani Honkonen
|
r314 | |||
|
Jani Honkonen
|
r1009 | \a state is true when user has hovered over the slice and false when hover has moved away from the slice. | ||
|
Jani Honkonen
|
r809 | |||
|
Jani Honkonen
|
r1009 | \sa QPieSlice::hovered() | ||
|
Jani Honkonen
|
r809 | */ | ||
|
Jani Honkonen
|
r174 | |||
|
Marek Rosa
|
r1056 | |||
|
Marek Rosa
|
r597 | |||
|
Michal Klocek
|
r938 | /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | ||
|
Tero Ahola
|
r988 | QPieSeriesPrivate::QPieSeriesPrivate(QPieSeries *parent) : | ||
| QAbstractSeriesPrivate(parent), | ||||
|
Michal Klocek
|
r938 | m_pieRelativeHorPos(0.5), | ||
| m_pieRelativeVerPos(0.5), | ||||
| m_pieRelativeSize(0.7), | ||||
| m_pieStartAngle(0), | ||||
| m_pieEndAngle(360), | ||||
|
Marek Rosa
|
r1230 | m_sum(0) | ||
|
Michal Klocek
|
r938 | { | ||
| } | ||||
| QPieSeriesPrivate::~QPieSeriesPrivate() | ||||
| { | ||||
| } | ||||
| void QPieSeriesPrivate::updateDerivativeData() | ||||
| { | ||||
|
Jani Honkonen
|
r939 | m_sum = 0; | ||
|
Michal Klocek
|
r938 | |||
| // nothing to do? | ||||
| if (m_slices.count() == 0) | ||||
| return; | ||||
|
Jani Honkonen
|
r939 | // calculate sum of all slices | ||
|
Michal Klocek
|
r938 | foreach (QPieSlice* s, m_slices) | ||
|
Jani Honkonen
|
r939 | m_sum += s->value(); | ||
|
Michal Klocek
|
r938 | |||
| // nothing to show.. | ||||
|
Jani Honkonen
|
r939 | if (qFuzzyIsNull(m_sum)) | ||
|
Michal Klocek
|
r938 | return; | ||
| // update slice attributes | ||||
| qreal sliceAngle = m_pieStartAngle; | ||||
| qreal pieSpan = m_pieEndAngle - m_pieStartAngle; | ||||
| QVector<QPieSlice*> changed; | ||||
| foreach (QPieSlice* s, m_slices) { | ||||
|
Jani Honkonen
|
r1224 | PieSliceData data = PieSliceData::fromSlice(s); | ||
|
Jani Honkonen
|
r939 | data.m_percentage = s->value() / m_sum; | ||
|
Michal Klocek
|
r938 | data.m_angleSpan = pieSpan * data.m_percentage; | ||
| data.m_startAngle = sliceAngle; | ||||
| sliceAngle += data.m_angleSpan; | ||||
|
Jani Honkonen
|
r1224 | if (PieSliceData::fromSlice(s) != data) { | ||
| PieSliceData::fromSlice(s) = data; | ||||
|
Michal Klocek
|
r938 | changed << s; | ||
| } | ||||
| } | ||||
| // emit signals | ||||
| foreach (QPieSlice* s, changed) | ||||
|
Jani Honkonen
|
r1224 | PieSliceData::emitCalculatedDataChanged(s); | ||
|
Michal Klocek
|
r938 | } | ||
|
Jani Honkonen
|
r1009 | QPieSeriesPrivate* QPieSeriesPrivate::seriesData(QPieSeries &series) | ||
|
Michal Klocek
|
r938 | { | ||
|
Jani Honkonen
|
r1009 | return series.d_func(); | ||
|
Michal Klocek
|
r938 | } | ||
|
Jani Honkonen
|
r1009 | void QPieSeriesPrivate::sliceChanged() | ||
|
Michal Klocek
|
r938 | { | ||
|
Jani Honkonen
|
r1009 | Q_ASSERT(m_slices.contains(qobject_cast<QPieSlice *>(sender()))); | ||
| updateDerivativeData(); | ||||
|
Michal Klocek
|
r938 | } | ||
|
Jani Honkonen
|
r1009 | void QPieSeriesPrivate::sliceClicked() | ||
|
Michal Klocek
|
r938 | { | ||
| QPieSlice* slice = qobject_cast<QPieSlice *>(sender()); | ||||
| Q_ASSERT(m_slices.contains(slice)); | ||||
| Q_Q(QPieSeries); | ||||
|
Jani Honkonen
|
r1009 | emit q->clicked(slice); | ||
|
Michal Klocek
|
r938 | } | ||
|
Jani Honkonen
|
r1009 | void QPieSeriesPrivate::sliceHovered(bool state) | ||
|
Michal Klocek
|
r938 | { | ||
| QPieSlice* slice = qobject_cast<QPieSlice *>(sender()); | ||||
| Q_ASSERT(m_slices.contains(slice)); | ||||
| Q_Q(QPieSeries); | ||||
|
Jani Honkonen
|
r1009 | emit q->hovered(slice, state); | ||
|
Michal Klocek
|
r938 | } | ||
| bool QPieSeriesPrivate::setRealValue(qreal &value, qreal newValue, qreal max, qreal min) | ||||
| { | ||||
| // Remove rounding errors | ||||
| qreal roundedValue = newValue; | ||||
| if (qFuzzyIsNull(min) && qFuzzyIsNull(newValue)) | ||||
| roundedValue = 0.0; | ||||
| else if (qFuzzyCompare(newValue, max)) | ||||
| roundedValue = max; | ||||
| else if (qFuzzyCompare(newValue, min)) | ||||
| roundedValue = min; | ||||
| // Check if the position is valid after removing the rounding errors | ||||
| if (roundedValue < min || roundedValue > max) { | ||||
| qWarning("QPieSeries: Illegal value"); | ||||
| return false; | ||||
| } | ||||
| if (!qFuzzyIsNull(value - roundedValue)) { | ||||
| value = roundedValue; | ||||
| return true; | ||||
| } | ||||
| // The change was so small it is considered a rounding error | ||||
| return false; | ||||
| } | ||||
|
Michal Klocek
|
r943 | void QPieSeriesPrivate::scaleDomain(Domain& domain) | ||
| { | ||||
| Q_UNUSED(domain); | ||||
|
Jani Honkonen
|
r1191 | // does not apply to pie | ||
|
Michal Klocek
|
r943 | } | ||
| Chart* QPieSeriesPrivate::createGraphics(ChartPresenter* presenter) | ||||
| { | ||||
| Q_Q(QPieSeries); | ||||
| PieChartItem* pie = new PieChartItem(q,presenter); | ||||
| if(presenter->animationOptions().testFlag(QChart::SeriesAnimations)) { | ||||
| presenter->animator()->addAnimation(pie); | ||||
| } | ||||
| presenter->chartTheme()->decorate(q, presenter->dataSet()->seriesIndex(q)); | ||||
| return pie; | ||||
| } | ||||
|
Michal Klocek
|
r938 | |||
|
Michal Klocek
|
r950 | QList<LegendMarker*> QPieSeriesPrivate::createLegendMarker(QLegend* legend) | ||
| { | ||||
| Q_Q(QPieSeries); | ||||
| QList<LegendMarker*> markers; | ||||
| foreach(QPieSlice* slice, q->slices()) { | ||||
| PieLegendMarker* marker = new PieLegendMarker(q,slice,legend); | ||||
| markers << marker; | ||||
| } | ||||
| return markers; | ||||
| } | ||||
|
Jani Honkonen
|
r142 | #include "moc_qpieseries.cpp" | ||
|
Michal Klocek
|
r938 | #include "moc_qpieseries_p.cpp" | ||
|
Jani Honkonen
|
r142 | |||
| QTCOMMERCIALCHART_END_NAMESPACE | ||||