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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qpieslice.h"
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#include "qpieslice_p.h"
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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/*!
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\class QPieSlice
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\brief Defines a slice in pie series.
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This object defines the properties of a single slice in a QPieSeries.
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In addition to the obvious value and label properties the user can also control
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the visual appearance of a slice. By modifying the visual appearance also means that
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the user is overriding the default appearance set by the theme.
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Note that if the user has customized slices and theme is changed all customizations will be lost.
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To enable user interaction with the pie some basic signals are provided about clicking and hovering.
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*/
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/*!
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\qmlclass PieSlice QPieSlice
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PieSlice defines the properties of a single slice in a PieSeries. The element should be used
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as a child for a PieSeries. For example:
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\snippet ../examples/qmlpiechart/qml/qmlpiechart/main.qml 2
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An alternative (dynamic) method for adding slices to a PieSeries is using PieSeries.append
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method.
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\snippet ../examples/qmlpiechart/qml/qmlpiechart/main.qml 4
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In that case you may want to use PieSeries.at or PieSeries.find to access the properties of
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an individual PieSlice instance.
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\snippet ../examples/qmlpiechart/qml/qmlpiechart/main.qml 5
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\sa PieSeries
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*/
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/*!
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\enum QPieSlice::LabelPosition
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This enum describes the position of the slice label.
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\value LabelOutside Label is outside the slice with an arm.
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\value LabelInsideHorizontal Label is centered inside the slice and laid out horizontally.
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\value LabelInsideTangential Label is centered inside the slice and rotated to be parallel to the tangential of the slice's arc.
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\value LabelInsideNormal Label is centered inside the slice rotated to be parallel to the normal of the slice's arc.
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*/
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/*!
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\property QPieSlice::label
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Label of the slice.
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\sa labelVisible, labelBrush, labelFont, labelArmLengthFactor
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*/
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/*!
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\qmlproperty string PieSlice::label
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Label (text) of the slice.
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*/
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/*!
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\fn void QPieSlice::labelChanged()
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This signal emitted when the slice label has been changed.
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\sa label
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*/
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/*!
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\qmlsignal PieSlice::onLabelChanged()
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This signal emitted when the slice label has been changed.
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\sa label
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*/
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/*!
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\property QPieSlice::value
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Value of the slice.
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Note that if users sets a negative value it is converted to a positive value.
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\sa percentage(), QPieSeries::sum()
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*/
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/*!
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\qmlproperty real PieSlice::value
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Value of the slice. Note that if users sets a negative value it is converted to a positive value.
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*/
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/*!
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\fn void QPieSlice::valueChanged()
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This signal is emitted when the slice value changes.
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\sa value
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*/
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/*!
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\qmlsignal PieSlice::onValueChanged()
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This signal is emitted when the slice value changes.
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\sa value
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*/
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/*!
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\property QPieSlice::labelVisible
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Defines the visibility of slice label. By default the label is not visible.
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\sa label, labelBrush, labelFont, labelArmLengthFactor
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*/
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/*!
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\qmlproperty bool PieSlice::labelVisible
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Defines the visibility of slice label. By default the label is not visible.
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*/
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/*!
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\fn void QPieSlice::labelVisibleChanged()
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This signal emitted when visibility of the slice label has changed.
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\sa labelVisible
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*/
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/*!
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\qmlsignal PieSlice::onLabelVisibleChanged()
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This signal emitted when visibility of the slice label has changed.
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\sa labelVisible
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*/
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/*!
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\property QPieSlice::exploded
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If set to true the slice is "exploded" away from the pie.
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\sa explodeDistanceFactor
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*/
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/*!
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\qmlproperty bool PieSlice::exploded
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If set to true the slice is "exploded" away from the pie.
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\sa explodeDistanceFactor
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*/
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/*!
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\property QPieSlice::pen
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Pen used to draw the slice border.
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*/
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/*!
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\fn void QPieSlice::penChanged()
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This signal is emitted when the pen of the slice has changed.
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\sa pen
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*/
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/*!
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\property QPieSlice::borderColor
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Color used to draw the slice border.
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This is a convenience property for modifying the slice pen.
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\sa pen, borderWidth
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*/
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/*!
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\qmlproperty color PieSlice::borderColor
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Color used to draw the slice border (pen color).
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\sa borderWidth
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*/
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/*!
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\fn void QPieSlice::borderColorChanged()
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This signal is emitted when slice border color changes.
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\sa pen, borderColor
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*/
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/*!
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\qmlsignal PieSlice::onBorderColorChanged()
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This signal is emitted when slice border color changes.
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\sa borderColor
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*/
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/*!
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\property QPieSlice::borderWidth
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Width of the slice border.
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This is a convenience property for modifying the slice pen.
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\sa pen, borderColor
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*/
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/*!
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\qmlproperty int PieSlice::borderWidth
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Width of the slice border.
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This is a convenience property for modifying the slice pen.
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\sa borderColor
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*/
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/*!
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\fn void QPieSlice::borderWidthChanged()
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This signal is emitted when slice border width changes.
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\sa pen, borderWidth
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*/
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/*!
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\qmlsignal PieSlice::onBorderWidthChanged()
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This signal is emitted when slice border width changes.
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\sa borderWidth
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*/
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/*!
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\property QPieSlice::brush
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Brush used to draw the slice.
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*/
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/*!
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\fn void QPieSlice::brushChanged()
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This signal is emitted when the brush of the slice has changed.
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\sa brush
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*/
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/*!
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\property QPieSlice::color
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Fill (brush) color of the slice.
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This is a convenience property for modifying the slice brush.
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\sa brush
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*/
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/*!
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\qmlproperty color PieSlice::color
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Fill (brush) color of the slice.
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*/
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/*!
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\fn void QPieSlice::colorChanged()
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This signal is emitted when slice color changes.
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\sa brush
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*/
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/*!
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\qmlsignal PieSlice::onColorChanged()
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This signal is emitted when slice color changes.
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*/
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/*!
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\property QPieSlice::labelBrush
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Brush used to draw label and label arm of the slice.
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\sa label, labelVisible, labelFont, labelArmLengthFactor
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*/
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/*!
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\fn void QPieSlice::labelBrushChanged()
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This signal is emitted when the label brush of the slice has changed.
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\sa labelBrush
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*/
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/*!
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\property QPieSlice::labelColor
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Color used to draw the slice label.
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This is a convenience property for modifying the slice label brush.
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\sa labelBrush
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*/
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/*!
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\qmlproperty color PieSlice::labelColor
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Color used to draw the slice label.
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*/
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/*!
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\fn void QPieSlice::labelColorChanged()
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This signal is emitted when slice label color changes.
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\sa labelColor
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*/
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/*!
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\qmlsignal PieSlice::onLabelColorChanged()
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This signal is emitted when slice label color changes.
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\sa labelColor
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*/
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/*!
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\property QPieSlice::labelFont
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Font used for drawing label text.
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\sa label, labelVisible, labelArmLengthFactor
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*/
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/*!
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\fn void QPieSlice::labelFontChanged()
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This signal is emitted when the label font of the slice has changed.
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\sa labelFont
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*/
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/*!
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\qmlproperty Font PieSlice::labelFont
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Defines the font used for slice label.
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See the \l {Font} {QML Font Element} for detailed documentation.
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\sa labelVisible, labelPosition
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*/
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/*!
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\property QPieSlice::labelPosition
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Position of the slice label.
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\sa label, labelVisible
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*/
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/*!
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\qmlproperty LabelPosition PieSlice::labelPosition
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Position of the slice label. One of PieSlice.LabelOutside or PieSlice.LabelInside.
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\sa labelVisible
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*/
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/*!
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\property QPieSlice::labelArmLengthFactor
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Defines the length of the label arm.
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The factor is relative to pie radius. For example:
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1.0 means the length is the same as the radius.
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0.5 means the length is half of the radius.
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By default the arm length is 0.15
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\sa label, labelVisible, labelBrush, labelFont
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*/
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/*!
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\qmlproperty real PieSlice::labelArmLengthFactor
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Defines the length of the label arm.
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The factor is relative to pie radius. For example:
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1.0 means the length is the same as the radius.
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0.5 means the length is half of the radius.
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By default the arm length is 0.15
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\sa labelVisible
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*/
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/*!
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\property QPieSlice::explodeDistanceFactor
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When the slice is exploded this factor defines how far the slice is exploded away from the pie.
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The factor is relative to pie radius. For example:
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1.0 means the distance is the same as the radius.
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0.5 means the distance is half of the radius.
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By default the distance is is 0.15
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\sa exploded
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*/
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/*!
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\qmlproperty real PieSlice::explodeDistanceFactor
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When the slice is exploded this factor defines how far the slice is exploded away from the pie.
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The factor is relative to pie radius. For example:
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1.0 means the distance is the same as the radius.
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0.5 means the distance is half of the radius.
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By default the distance is is 0.15
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\sa exploded
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*/
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/*!
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\property QPieSlice::percentage
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Percentage of the slice compared to the sum of all slices in the series.
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The actual value ranges from 0.0 to 1.0.
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Updated automatically once the slice is added to the series.
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\sa value, QPieSeries::sum
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*/
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/*!
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\qmlproperty real PieSlice::percentage
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Percentage of the slice compared to the sum of all slices in the series.
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The actual value ranges from 0.0 to 1.0.
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Updated automatically once the slice is added to the series.
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*/
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/*!
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\fn void QPieSlice::percentageChanged()
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This signal is emitted when the percentage of the slice has changed.
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\sa percentage
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*/
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/*!
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\qmlsignal void PieSlice::onPercentageChanged()
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This signal is emitted when the percentage of the slice has changed.
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\sa percentage
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*/
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/*!
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\property QPieSlice::startAngle
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Defines the starting angle of this slice in the series it belongs to.
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Full pie is 360 degrees where 0 degrees is at 12 a'clock.
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Updated automatically once the slice is added to the series.
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*/
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/*!
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\qmlproperty real PieSlice::startAngle
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Defines the starting angle of this slice in the series it belongs to.
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Full pie is 360 degrees where 0 degrees is at 12 a'clock.
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Updated automatically once the slice is added to the series.
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*/
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/*!
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\fn void QPieSlice::startAngleChanged()
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This signal is emitted when the starting angle f the slice has changed.
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\sa startAngle
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*/
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/*!
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\qmlsignal PieSlice::onStartAngleChanged()
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This signal is emitted when the starting angle f the slice has changed.
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\sa startAngle
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*/
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/*!
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\property QPieSlice::angleSpan
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Span of the slice in degrees.
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Full pie is 360 degrees where 0 degrees is at 12 a'clock.
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Updated automatically once the slice is added to the series.
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*/
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/*!
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\qmlproperty real PieSlice::angleSpan
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Span of the slice in degrees.
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Full pie is 360 degrees where 0 degrees is at 12 a'clock.
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Updated automatically once the slice is added to the series.
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*/
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/*!
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\fn void QPieSlice::angleSpanChanged()
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This signal is emitted when the angle span of the slice has changed.
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\sa angleSpan
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*/
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/*!
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\qmlsignal PieSlice::onAngleSpanChanged()
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This signal is emitted when the angle span of the slice has changed.
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\sa angleSpan
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*/
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/*!
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\fn void QPieSlice::clicked()
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This signal is emitted when user has clicked the slice.
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\sa QPieSeries::clicked()
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*/
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/*!
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\qmlsignal PieSlice::onClicked()
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This signal is emitted when user has clicked the slice.
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*/
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/*!
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\fn void QPieSlice::hovered(bool state)
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This signal is emitted when user has hovered over or away from the slice.
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\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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\sa QPieSeries::hovered()
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*/
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/*!
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\qmlsignal PieSlice::onHovered(bool state)
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This signal is emitted when user has hovered over or away from the slice.
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\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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*/
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/*!
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Constructs an empty slice with a \a parent.
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\sa QPieSeries::append(), QPieSeries::insert()
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*/
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QPieSlice::QPieSlice(QObject *parent)
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:QObject(parent),
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d_ptr(new QPieSlicePrivate(this))
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{
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}
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/*!
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Constructs an empty slice with given \a value, \a label and a \a parent.
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\sa QPieSeries::append(), QPieSeries::insert()
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*/
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QPieSlice::QPieSlice(QString label, qreal value, QObject *parent)
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:QObject(parent),
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d_ptr(new QPieSlicePrivate(this))
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{
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setValue(value);
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setLabel(label);
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}
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/*!
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Destroys the slice.
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User should not delete the slice if it has been added to the series.
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*/
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QPieSlice::~QPieSlice()
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{
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}
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void QPieSlice::setLabel(QString label)
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{
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if (d_ptr->m_data.m_labelText != label) {
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d_ptr->m_data.m_labelText = label;
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emit labelChanged();
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}
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}
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QString QPieSlice::label() const
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{
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return d_ptr->m_data.m_labelText;
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}
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void QPieSlice::setValue(qreal value)
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{
|
|
|
value = qAbs(value); // negative values not allowed
|
|
|
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;
|
|
|
}
|
|
|
|
|
|
void QPieSlice::setLabelVisible(bool visible)
|
|
|
{
|
|
|
if (d_ptr->m_data.m_isLabelVisible != visible) {
|
|
|
d_ptr->m_data.m_isLabelVisible = visible;
|
|
|
emit labelVisibleChanged();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
bool QPieSlice::isLabelVisible() const
|
|
|
{
|
|
|
return d_ptr->m_data.m_isLabelVisible;
|
|
|
}
|
|
|
|
|
|
void QPieSlice::setExploded(bool exploded)
|
|
|
{
|
|
|
if (d_ptr->m_data.m_isExploded != exploded) {
|
|
|
d_ptr->m_data.m_isExploded = exploded;
|
|
|
emit d_ptr->explodedChanged();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QPieSlice::LabelPosition QPieSlice::labelPosition()
|
|
|
{
|
|
|
return d_ptr->m_data.m_labelPosition;
|
|
|
}
|
|
|
|
|
|
void QPieSlice::setLabelPosition(LabelPosition position)
|
|
|
{
|
|
|
if (d_ptr->m_data.m_labelPosition != position) {
|
|
|
d_ptr->m_data.m_labelPosition = position;
|
|
|
emit d_ptr->labelPositionChanged();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
bool QPieSlice::isExploded() const
|
|
|
{
|
|
|
return d_ptr->m_data.m_isExploded;
|
|
|
}
|
|
|
|
|
|
void QPieSlice::setPen(const QPen &pen)
|
|
|
{
|
|
|
d_ptr->setPen(pen, false);
|
|
|
}
|
|
|
|
|
|
QPen QPieSlice::pen() const
|
|
|
{
|
|
|
return d_ptr->m_data.m_slicePen;
|
|
|
}
|
|
|
|
|
|
QColor QPieSlice::borderColor()
|
|
|
{
|
|
|
return pen().color();
|
|
|
}
|
|
|
|
|
|
void QPieSlice::setBorderColor(QColor color)
|
|
|
{
|
|
|
QPen p = pen();
|
|
|
if (color != p.color()) {
|
|
|
p.setColor(color);
|
|
|
setPen(p);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
int QPieSlice::borderWidth()
|
|
|
{
|
|
|
return pen().width();
|
|
|
}
|
|
|
|
|
|
void QPieSlice::setBorderWidth(int width)
|
|
|
{
|
|
|
QPen p = pen();
|
|
|
if (width != p.width()) {
|
|
|
p.setWidth(width);
|
|
|
setPen(p);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void QPieSlice::setBrush(const QBrush &brush)
|
|
|
{
|
|
|
d_ptr->setBrush(brush, false);
|
|
|
}
|
|
|
|
|
|
QBrush QPieSlice::brush() const
|
|
|
{
|
|
|
return d_ptr->m_data.m_sliceBrush;
|
|
|
}
|
|
|
|
|
|
QColor QPieSlice::color()
|
|
|
{
|
|
|
return brush().color();
|
|
|
}
|
|
|
|
|
|
void QPieSlice::setColor(QColor color)
|
|
|
{
|
|
|
QBrush b = brush();
|
|
|
|
|
|
if (b == QBrush())
|
|
|
b.setStyle(Qt::SolidPattern);
|
|
|
b.setColor(color);
|
|
|
setBrush(b);
|
|
|
}
|
|
|
|
|
|
void QPieSlice::setLabelBrush(const QBrush &brush)
|
|
|
{
|
|
|
d_ptr->setLabelBrush(brush, false);
|
|
|
}
|
|
|
|
|
|
QBrush QPieSlice::labelBrush() const
|
|
|
{
|
|
|
return d_ptr->m_data.m_labelBrush;
|
|
|
}
|
|
|
|
|
|
QColor QPieSlice::labelColor()
|
|
|
{
|
|
|
return labelBrush().color();
|
|
|
}
|
|
|
|
|
|
void QPieSlice::setLabelColor(QColor color)
|
|
|
{
|
|
|
QBrush b = labelBrush();
|
|
|
if (color != b.color()) {
|
|
|
b.setColor(color);
|
|
|
setLabelBrush(b);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void QPieSlice::setLabelFont(const QFont &font)
|
|
|
{
|
|
|
d_ptr->setLabelFont(font, false);
|
|
|
}
|
|
|
|
|
|
QFont QPieSlice::labelFont() const
|
|
|
{
|
|
|
return d_ptr->m_data.m_labelFont;
|
|
|
}
|
|
|
|
|
|
void QPieSlice::setLabelArmLengthFactor(qreal factor)
|
|
|
{
|
|
|
if (!qFuzzyIsNull(d_ptr->m_data.m_labelArmLengthFactor - factor)) {
|
|
|
d_ptr->m_data.m_labelArmLengthFactor = factor;
|
|
|
emit d_ptr->labelArmLengthFactorChanged();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
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 d_ptr->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;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the series that this slice belongs to.
|
|
|
|
|
|
\sa QPieSeries::append()
|
|
|
*/
|
|
|
QPieSeries *QPieSlice::series() const
|
|
|
{
|
|
|
return d_ptr->m_series;
|
|
|
}
|
|
|
|
|
|
QPieSlicePrivate::QPieSlicePrivate(QPieSlice *parent)
|
|
|
:QObject(parent),
|
|
|
q_ptr(parent),
|
|
|
m_series(0)
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
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) {
|
|
|
|
|
|
QPen oldPen = m_data.m_slicePen;
|
|
|
|
|
|
m_data.m_slicePen = pen;
|
|
|
m_data.m_slicePen.setThemed(themed);
|
|
|
|
|
|
emit q_ptr->penChanged();
|
|
|
if (oldPen.color() != pen.color())
|
|
|
emit q_ptr->borderColorChanged();
|
|
|
if (oldPen.width() != pen.width())
|
|
|
emit q_ptr->borderWidthChanged();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void QPieSlicePrivate::setBrush(const QBrush &brush, bool themed)
|
|
|
{
|
|
|
if (m_data.m_sliceBrush != brush) {
|
|
|
|
|
|
QBrush oldBrush = m_data.m_sliceBrush;
|
|
|
|
|
|
m_data.m_sliceBrush = brush;
|
|
|
m_data.m_sliceBrush.setThemed(themed);
|
|
|
|
|
|
emit q_ptr->brushChanged();
|
|
|
if (oldBrush.color() != brush.color())
|
|
|
emit q_ptr->colorChanged();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void QPieSlicePrivate::setLabelBrush(const QBrush &brush, bool themed)
|
|
|
{
|
|
|
if (m_data.m_labelBrush != brush) {
|
|
|
|
|
|
QBrush oldBrush = m_data.m_labelBrush;
|
|
|
|
|
|
m_data.m_labelBrush = brush;
|
|
|
m_data.m_labelBrush.setThemed(themed);
|
|
|
|
|
|
emit q_ptr->labelBrushChanged();
|
|
|
if (oldBrush.color() != brush.color())
|
|
|
emit q_ptr->labelColorChanged();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
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();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
|
|
QTCOMMERCIALCHART_USE_NAMESPACE
|
|
|
#include "moc_qpieslice.cpp"
|
|
|
#include "moc_qpieslice_p.cpp"
|
|
|
|
