qpieslice.cpp
536 lines
| 11.2 KiB
| text/x-c
|
CppLexer
Jani Honkonen
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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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r203 | #include "qpieslice.h" | ||
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r1274 | #include "qpieslice_p.h" | ||
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r203 | |||
| QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
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r314 | /*! | ||
| \class QPieSlice | ||||
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r339 | \brief Defines a slice in pie series. | ||
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r314 | |||
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r952 | This object defines the properties of a single slice in a QPieSeries. | ||
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r320 | |||
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r952 | In addition to the obvious value and label properties the user can also control | ||
| the visual appearance of a slice. By modifying the visual appearance also means that | ||||
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r1277 | the user is overriding the default appearance set by the theme. | ||
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r952 | |||
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r1277 | Note that if the user has customized slices and theme is changed all customizations will be lost. | ||
| To enable user interaction with the pie some basic signals are provided about clicking and hovering. | ||||
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r314 | */ | ||
| /*! | ||||
| \property QPieSlice::label | ||||
| Label of the slice. | ||||
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r1277 | |||
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r1307 | \sa labelVisible, labelBrush, labelFont, labelArmLengthFactor | ||
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r1277 | */ | ||
| /*! | ||||
| \fn void QPieSlice::labelChanged() | ||||
| This signal emitted when the slice label has been changed. | ||||
| \sa label | ||||
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r314 | */ | ||
| /*! | ||||
| \property QPieSlice::value | ||||
| Value of the slice. | ||||
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r952 | |||
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r1280 | Note that if users sets a negative value it is converted to a positive value. | ||
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r952 | \sa percentage(), QPieSeries::sum() | ||
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r314 | */ | ||
| /*! | ||||
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r1277 | \fn void QPieSlice::valueChanged() | ||
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r320 | |||
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r1277 | This signal is emitted when the slice value changes. | ||
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r203 | |||
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r1277 | \sa value | ||
| */ | ||||
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r203 | |||
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r314 | /*! | ||
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r1277 | \property QPieSlice::labelVisible | ||
| Defienes the visibility of the slice label. | ||||
| Default is not visible. | ||||
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r1307 | \sa label, labelBrush, labelFont, labelArmLengthFactor | ||
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r314 | */ | ||
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r203 | |||
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r314 | /*! | ||
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r1277 | \fn void QPieSlice::labelVisibleChanged() | ||
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r1274 | |||
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r1277 | This signal emitted when visibility of the slice label has changed. | ||
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r203 | |||
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r1277 | \sa labelVisible | ||
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r314 | */ | ||
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r203 | |||
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r314 | /*! | ||
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r1277 | \property QPieSlice::exploded | ||
| Defines if the slice is exploded from the pie. | ||||
| \sa explodeDistanceFactor | ||||
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r314 | */ | ||
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r203 | |||
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r314 | /*! | ||
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r1277 | \fn void QPieSlice::explodedChanged() | ||
| This signal is emitted the the slice has been exploded from the pie or is returned back to the pie. | ||||
| \sa exploded | ||||
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r314 | */ | ||
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r203 | |||
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r314 | /*! | ||
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r1277 | \property QPieSlice::pen | ||
| Pen used to draw the slice border. | ||||
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r314 | */ | ||
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r203 | |||
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r314 | /*! | ||
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r1277 | \fn void QPieSlice::penChanged() | ||
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r454 | |||
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r1277 | This signal is emitted when the pen of the slice has changed. | ||
| \sa pen | ||||
| */ | ||||
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r454 | |||
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r1277 | /*! | ||
| \property QPieSlice::brush | ||||
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r454 | |||
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r1277 | Brush used to draw the slice. | ||
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r314 | */ | ||
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r289 | |||
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r314 | /*! | ||
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r1277 | \fn void QPieSlice::brushChanged() | ||
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r320 | |||
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r1277 | This signal is emitted when the brush of the slice has changed. | ||
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r952 | |||
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r1277 | \sa brush | ||
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r314 | */ | ||
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r203 | |||
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r314 | /*! | ||
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r1307 | \property QPieSlice::labelBrush | ||
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r320 | |||
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r1277 | Pen used to draw label and label arm of the slice. | ||
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r320 | |||
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r1277 | \sa label, labelVisible, labelFont, labelArmLengthFactor | ||
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r314 | */ | ||
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r203 | |||
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r314 | /*! | ||
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r1307 | \fn void QPieSlice::labelBrushChanged() | ||
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r320 | |||
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r1277 | This signal is emitted when the label pen of the slice has changed. | ||
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r320 | |||
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r1307 | \sa labelBrush | ||
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r314 | */ | ||
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r203 | |||
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r314 | /*! | ||
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r1277 | \property QPieSlice::labelFont | ||
| Font used for drawing label text. | ||||
| \sa label, labelVisible, labelArmLengthFactor | ||||
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r314 | */ | ||
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r203 | |||
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r314 | /*! | ||
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r1277 | \fn void QPieSlice::labelFontChanged() | ||
| This signal is emitted when the label font of the slice has changed. | ||||
| \sa labelFont | ||||
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r314 | */ | ||
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r203 | |||
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r314 | /*! | ||
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r1277 | \property QPieSlice::labelArmLengthFactor | ||
| Defines the length of the label arm. | ||||
| The factor is relative to pie radius. For example: | ||||
| 1.0 means the length is the same as the radius. | ||||
| 0.5 means the length is half of the radius. | ||||
| Default value is 0.15 | ||||
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r1307 | \sa label, labelVisible, labelBrush, labelFont | ||
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r314 | */ | ||
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r203 | |||
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r314 | /*! | ||
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r1277 | \fn void QPieSlice::labelArmLengthFactorChanged() | ||
| This signal is emitted when the label arm factor of the slice has changed. | ||||
| \sa labelArmLengthFactor | ||||
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r314 | */ | ||
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r203 | |||
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r314 | /*! | ||
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r1277 | \property QPieSlice::explodeDistanceFactor | ||
| When the slice is exploded this factor defines how far the slice is exploded away from the pie. | ||||
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r454 | |||
| The factor is relative to pie radius. For example: | ||||
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r1277 | 1.0 means the distance is the same as the radius. | ||
| 0.5 means the distance is half of the radius. | ||||
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r454 | |||
| Default value is 0.15 | ||||
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r1277 | \sa exploded | ||
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r314 | */ | ||
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r203 | |||
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r1224 | /*! | ||
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r1277 | \fn void QPieSlice::explodeDistanceFactorChanged() | ||
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r1224 | |||
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r1277 | This signal is emitted when the explode distance factor of the slice has changed. | ||
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r1224 | |||
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r1277 | \sa explodeDistanceFactor | ||
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r1224 | */ | ||
| /*! | ||||
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r1277 | \property QPieSlice::percentage | ||
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r1224 | |||
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r1277 | Percentage of the slice compared to the sum of all slices in the series. | ||
| The actual value ranges from 0.0 to 1.0. | ||||
| Updated automatically once the slice is added to the series. | ||||
| \sa value, QPieSeries::sum | ||||
| */ | ||||
| /*! | ||||
| \fn void QPieSlice::percentageChanged() | ||||
| This signal is emitted when the percentage of the slice has changed. | ||||
| \sa percentage | ||||
| */ | ||||
| /*! | ||||
| \property QPieSlice::startAngle | ||||
| Defines the starting angle of this slice in the series it belongs to. | ||||
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r1224 | |||
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r1277 | Full pie is 360 degrees where 0 degrees is at 12 a'clock. | ||
| Updated automatically once the slice is added to the series. | ||||
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r1224 | */ | ||
| /*! | ||||
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r1277 | \fn void QPieSlice::startAngleChanged() | ||
| This signal is emitted when the starting angle f the slice has changed. | ||||
| \sa startAngle | ||||
| */ | ||||
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r1224 | |||
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r1277 | /*! | ||
| \property QPieSlice::angleSpan | ||||
| Span of the slice in degrees. | ||||
| Full pie is 360 degrees where 0 degrees is at 12 a'clock. | ||||
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r1224 | |||
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r1277 | Updated automatically once the slice is added to the series. | ||
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r1224 | */ | ||
| /*! | ||||
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r1277 | \fn void QPieSlice::angleSpanChanged() | ||
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r1224 | |||
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r1277 | This signal is emitted when the angle span of the slice has changed. | ||
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r1224 | |||
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r1277 | \sa angleSpan | ||
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r1224 | */ | ||
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r1277 | |||
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r314 | /*! | ||
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r1009 | \fn void QPieSlice::clicked() | ||
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r314 | |||
| This signal is emitted when user has clicked the slice. | ||||
| \sa QPieSeries::clicked() | ||||
| */ | ||||
| /*! | ||||
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r1009 | \fn void QPieSlice::hovered(bool state) | ||
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r314 | |||
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r1009 | This signal is emitted when user has hovered over or away from the slice. | ||
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r314 | |||
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r1009 | \a state is true when user has hovered over the slice and false when hover has moved away from the slice. | ||
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r314 | |||
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r1009 | \sa QPieSeries::hovered() | ||
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r314 | */ | ||
| /*! | ||||
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r1277 | Constructs an empty slice with a \a parent. | ||
| \sa QPieSeries::append(), QPieSeries::insert() | ||||
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r314 | */ | ||
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r1277 | QPieSlice::QPieSlice(QObject *parent) | ||
| :QObject(parent), | ||||
| d_ptr(new QPieSlicePrivate(this)) | ||||
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r203 | { | ||
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r1277 | |||
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r203 | } | ||
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r314 | /*! | ||
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r1277 | Constructs an empty slice with given \a value, \a label and a \a parent. | ||
| \sa QPieSeries::append(), QPieSeries::insert() | ||||
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r314 | */ | ||
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r1277 | QPieSlice::QPieSlice(QString label, qreal value, QObject *parent) | ||
| :QObject(parent), | ||||
| d_ptr(new QPieSlicePrivate(this)) | ||||
| { | ||||
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r1280 | setValue(value); | ||
| setLabel(label); | ||||
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r1277 | } | ||
| /*! | ||||
| Destroys the slice. | ||||
| User should not delete the slice if it has been added to the series. | ||||
| */ | ||||
| QPieSlice::~QPieSlice() | ||||
| { | ||||
| } | ||||
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r203 | void QPieSlice::setLabel(QString label) | ||
| { | ||||
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r1274 | if (d_ptr->m_data.m_labelText != label) { | ||
| d_ptr->m_data.m_labelText = label; | ||||
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r1224 | emit labelChanged(); | ||
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r203 | } | ||
| } | ||||
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r1277 | QString QPieSlice::label() const | ||
| { | ||||
| return d_ptr->m_data.m_labelText; | ||||
| } | ||||
| void QPieSlice::setValue(qreal value) | ||||
| { | ||||
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r1280 | value = qAbs(value); // negative values not allowed | ||
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r1277 | if (!qFuzzyIsNull(d_ptr->m_data.m_value - value)) { | ||
| d_ptr->m_data.m_value = value; | ||||
| emit valueChanged(); | ||||
| } | ||||
| } | ||||
| qreal QPieSlice::value() const | ||||
| { | ||||
| return d_ptr->m_data.m_value; | ||||
| } | ||||
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r203 | void QPieSlice::setLabelVisible(bool visible) | ||
| { | ||||
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r1274 | if (d_ptr->m_data.m_isLabelVisible != visible) { | ||
| d_ptr->m_data.m_isLabelVisible = visible; | ||||
| emit labelVisibleChanged(); | ||||
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r203 | } | ||
| } | ||||
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r1277 | bool QPieSlice::isLabelVisible() const | ||
| { | ||||
| return d_ptr->m_data.m_isLabelVisible; | ||||
| } | ||||
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r952 | |||
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r203 | void QPieSlice::setExploded(bool exploded) | ||
| { | ||||
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r1274 | if (d_ptr->m_data.m_isExploded != exploded) { | ||
| d_ptr->m_data.m_isExploded = exploded; | ||||
| emit explodedChanged(); | ||||
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r203 | } | ||
| } | ||||
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r1277 | bool QPieSlice::isExploded() const | ||
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r289 | { | ||
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r1277 | return d_ptr->m_data.m_isExploded; | ||
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r289 | } | ||
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r756 | void QPieSlice::setPen(const QPen &pen) | ||
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r203 | { | ||
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r1274 | d_ptr->setPen(pen, false); | ||
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r203 | } | ||
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r1277 | QPen QPieSlice::pen() const | ||
| { | ||||
| return d_ptr->m_data.m_slicePen; | ||||
| } | ||||
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r952 | |||
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r756 | void QPieSlice::setBrush(const QBrush &brush) | ||
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r203 | { | ||
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r1274 | d_ptr->setBrush(brush, false); | ||
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r203 | } | ||
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r1277 | QBrush QPieSlice::brush() const | ||
| { | ||||
| return d_ptr->m_data.m_sliceBrush; | ||||
| } | ||||
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r952 | |||
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r1307 | void QPieSlice::setLabelBrush(const QBrush &brush) | ||
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r203 | { | ||
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Tero Ahola
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r1307 | d_ptr->setLabelBrush(brush, false); | ||
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r203 | } | ||
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Tero Ahola
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r1307 | QBrush QPieSlice::labelBrush() const | ||
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r1277 | { | ||
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Tero Ahola
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r1307 | return d_ptr->m_data.m_labelBrush; | ||
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r1277 | } | ||
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r952 | |||
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r469 | void QPieSlice::setLabelFont(const QFont &font) | ||
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r203 | { | ||
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r1274 | d_ptr->setLabelFont(font, false); | ||
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r203 | } | ||
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r1277 | QFont QPieSlice::labelFont() const | ||
| { | ||||
| return d_ptr->m_data.m_labelFont; | ||||
| } | ||||
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r454 | |||
| void QPieSlice::setLabelArmLengthFactor(qreal factor) | ||||
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r203 | { | ||
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r1274 | if (!qFuzzyIsNull(d_ptr->m_data.m_labelArmLengthFactor - factor)) { | ||
| d_ptr->m_data.m_labelArmLengthFactor = factor; | ||||
| emit labelArmLengthFactorChanged(); | ||||
| } | ||||
| } | ||||
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r1277 | qreal QPieSlice::labelArmLengthFactor() const | ||
| { | ||||
| return d_ptr->m_data.m_labelArmLengthFactor; | ||||
| } | ||||
| void QPieSlice::setExplodeDistanceFactor(qreal factor) | ||||
| { | ||||
| if (!qFuzzyIsNull(d_ptr->m_data.m_explodeDistanceFactor - factor)) { | ||||
| d_ptr->m_data.m_explodeDistanceFactor = factor; | ||||
| emit explodeDistanceFactorChanged(); | ||||
| } | ||||
| } | ||||
| qreal QPieSlice::explodeDistanceFactor() const | ||||
| { | ||||
| return d_ptr->m_data.m_explodeDistanceFactor; | ||||
| } | ||||
| qreal QPieSlice::percentage() const | ||||
| { | ||||
| return d_ptr->m_data.m_percentage; | ||||
| } | ||||
| qreal QPieSlice::startAngle() const | ||||
| { | ||||
| return d_ptr->m_data.m_startAngle; | ||||
| } | ||||
| qreal QPieSlice::angleSpan() const | ||||
| { | ||||
| return d_ptr->m_data.m_angleSpan; | ||||
| } | ||||
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r1274 | QPieSlicePrivate::QPieSlicePrivate(QPieSlice *parent) | ||
| :QObject(parent), | ||||
| q_ptr(parent) | ||||
| { | ||||
| } | ||||
| QPieSlicePrivate::~QPieSlicePrivate() | ||||
| { | ||||
| } | ||||
| QPieSlicePrivate *QPieSlicePrivate::fromSlice(QPieSlice *slice) | ||||
| { | ||||
| return slice->d_func(); | ||||
| } | ||||
| void QPieSlicePrivate::setPen(const QPen &pen, bool themed) | ||||
| { | ||||
| if (m_data.m_slicePen != pen) { | ||||
| m_data.m_slicePen = pen; | ||||
| m_data.m_slicePen.setThemed(themed); | ||||
| emit q_ptr->penChanged(); | ||||
| } | ||||
| } | ||||
| void QPieSlicePrivate::setBrush(const QBrush &brush, bool themed) | ||||
| { | ||||
| if (m_data.m_sliceBrush != brush) { | ||||
| m_data.m_sliceBrush = brush; | ||||
| m_data.m_sliceBrush.setThemed(themed); | ||||
| emit q_ptr->brushChanged(); | ||||
| } | ||||
| } | ||||
|
Tero Ahola
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r1307 | void QPieSlicePrivate::setLabelBrush(const QBrush &brush, bool themed) | ||
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r1274 | { | ||
|
Tero Ahola
|
r1307 | if (m_data.m_labelBrush != brush) { | ||
| m_data.m_labelBrush = brush; | ||||
| m_data.m_labelBrush.setThemed(themed); | ||||
| emit q_ptr->labelBrushChanged(); | ||||
|
Jani Honkonen
|
r1274 | } | ||
| } | ||||
| void QPieSlicePrivate::setLabelFont(const QFont &font, bool themed) | ||||
| { | ||||
| if (m_data.m_labelFont != font) { | ||||
| m_data.m_labelFont = font; | ||||
| m_data.m_labelFont.setThemed(themed); | ||||
| emit q_ptr->labelFontChanged(); | ||||
| } | ||||
| } | ||||
| void QPieSlicePrivate::setPercentage(qreal percentage) | ||||
| { | ||||
| if (!qFuzzyIsNull(m_data.m_percentage - percentage)) { | ||||
| m_data.m_percentage = percentage; | ||||
| emit q_ptr->percentageChanged(); | ||||
| } | ||||
| } | ||||
| void QPieSlicePrivate::setStartAngle(qreal angle) | ||||
| { | ||||
| if (!qFuzzyIsNull(m_data.m_startAngle - angle)) { | ||||
| m_data.m_startAngle = angle; | ||||
| emit q_ptr->startAngleChanged(); | ||||
| } | ||||
| } | ||||
| void QPieSlicePrivate::setAngleSpan(qreal span) | ||||
| { | ||||
| if (!qFuzzyIsNull(m_data.m_angleSpan - span)) { | ||||
| m_data.m_angleSpan = span; | ||||
| emit q_ptr->angleSpanChanged(); | ||||
|
Jani Honkonen
|
r203 | } | ||
| } | ||||
| QTCOMMERCIALCHART_END_NAMESPACE | ||||
|
Tero Ahola
|
r837 | |||
| QTCOMMERCIALCHART_USE_NAMESPACE | ||||
| #include "moc_qpieslice.cpp" | ||||
|
Jani Honkonen
|
r1274 | #include "moc_qpieslice_p.cpp" | ||