|
|
#include "qpieslice.h"
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
#define DEFAULT_PEN_COLOR Qt::black
|
|
|
#define DEFAULT_BRUSH_COLOR Qt::white
|
|
|
#define DEFAULT_LABEL_ARM_LENGTH 40
|
|
|
#define DEFAULT_EXPOLODE_DISTANCE 20
|
|
|
|
|
|
/*!
|
|
|
\class QPieSlice
|
|
|
\brief Defines a slice in pie series.
|
|
|
|
|
|
Holds all the data of a single slice in a QPieSeries and provides the means
|
|
|
to modify slice data and customize the visual appearance of the slice.
|
|
|
|
|
|
It also provides the means to customize user interaction with the slice by
|
|
|
providing signals for clicking and hover events.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QPieSlice::label
|
|
|
|
|
|
Label of the slice.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QPieSlice::value
|
|
|
|
|
|
Value of the slice.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
Constructs an empty slice with a \a parent.
|
|
|
|
|
|
Note that QPieSeries takes ownership of the slice when it is set/added.
|
|
|
|
|
|
\sa QPieSeries::set(), QPieSeries::add()
|
|
|
*/
|
|
|
QPieSlice::QPieSlice(QObject *parent)
|
|
|
:QObject(parent),
|
|
|
m_value(0),
|
|
|
m_isLabelVisible(false),
|
|
|
m_isExploded(false),
|
|
|
m_explodeDistance(DEFAULT_EXPOLODE_DISTANCE),
|
|
|
m_percentage(0),
|
|
|
m_angle(0),
|
|
|
m_angleSpan(0),
|
|
|
m_pen(DEFAULT_PEN_COLOR),
|
|
|
m_brush(DEFAULT_BRUSH_COLOR),
|
|
|
m_labelPen(DEFAULT_PEN_COLOR),
|
|
|
m_labelArmLength(DEFAULT_LABEL_ARM_LENGTH)
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Constructs an empty slice with given \a value, \a label and a \a parent.
|
|
|
Note that QPieSeries takes ownership of the slice when it is set/added.
|
|
|
\sa QPieSeries::set(), QPieSeries::add()
|
|
|
*/
|
|
|
QPieSlice::QPieSlice(qreal value, QString label, QObject *parent)
|
|
|
:QObject(parent),
|
|
|
m_value(value),
|
|
|
m_label(label),
|
|
|
m_isLabelVisible(false),
|
|
|
m_isExploded(false),
|
|
|
m_explodeDistance(DEFAULT_EXPOLODE_DISTANCE),
|
|
|
m_percentage(0),
|
|
|
m_angle(0),
|
|
|
m_angleSpan(0),
|
|
|
m_pen(DEFAULT_PEN_COLOR),
|
|
|
m_brush(DEFAULT_BRUSH_COLOR),
|
|
|
m_labelPen(DEFAULT_PEN_COLOR),
|
|
|
m_labelArmLength(DEFAULT_LABEL_ARM_LENGTH)
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Destroys the slice.
|
|
|
User should not delete the slice if it has been added to the series.
|
|
|
*/
|
|
|
QPieSlice::~QPieSlice()
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Gets the value of the slice.
|
|
|
Note that all values in the series
|
|
|
\sa setValue()
|
|
|
*/
|
|
|
qreal QPieSlice::value() const
|
|
|
{
|
|
|
return m_value;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Gets the label of the slice.
|
|
|
\sa setLabel()
|
|
|
*/
|
|
|
QString QPieSlice::label() const
|
|
|
{
|
|
|
return m_label;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns true if label is set as visible.
|
|
|
\sa setLabelVisible()
|
|
|
*/
|
|
|
bool QPieSlice::isLabelVisible() const
|
|
|
{
|
|
|
return m_isLabelVisible;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns true if slice is exloded from the pie.
|
|
|
\sa setExploded()
|
|
|
*/
|
|
|
bool QPieSlice::isExploded() const
|
|
|
{
|
|
|
return m_isExploded;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the explosion distance of the slice.
|
|
|
Default value is 20.
|
|
|
\sa setExplodeDistance()
|
|
|
*/
|
|
|
qreal QPieSlice::explodeDistance() const
|
|
|
{
|
|
|
return m_explodeDistance;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the percentage of this slice compared to all slices in the same series.
|
|
|
|
|
|
Updated internally after the slice is added to the series.
|
|
|
*/
|
|
|
qreal QPieSlice::percentage() const
|
|
|
{
|
|
|
return m_percentage;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the starting angle of this slice in the series it belongs to.
|
|
|
|
|
|
Full pie is 360 degrees where 0 degrees is at 12 a'clock.
|
|
|
|
|
|
Updated internally after the slice is added to the series.
|
|
|
*/
|
|
|
qreal QPieSlice::angle() const
|
|
|
{
|
|
|
return m_angle;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the angle span of this slice in the series it belongs to.
|
|
|
|
|
|
Full pie is 360 degrees where 0 degrees is at 12 a'clock.
|
|
|
|
|
|
Updated internally after the slice is added to the series.
|
|
|
*/
|
|
|
qreal QPieSlice::angleSpan() const
|
|
|
{
|
|
|
return m_angleSpan;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the pen used to draw this slice.
|
|
|
\sa setPen()
|
|
|
*/
|
|
|
QPen QPieSlice::pen() const
|
|
|
{
|
|
|
return m_pen;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the brush used to draw this slice.
|
|
|
\sa setBrush()
|
|
|
*/
|
|
|
QBrush QPieSlice::brush() const
|
|
|
{
|
|
|
return m_brush;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the pen used to draw label in this slice.
|
|
|
\sa setLabelPen()
|
|
|
*/
|
|
|
QPen QPieSlice::labelPen() const
|
|
|
{
|
|
|
return m_labelPen;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the font used to draw label in this slice.
|
|
|
\sa setLabelFont()
|
|
|
*/
|
|
|
QFont QPieSlice::labelFont() const
|
|
|
{
|
|
|
return m_labelFont;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the label arm lenght used in this slice.
|
|
|
Default value is 40 pixels.
|
|
|
\sa setLabelArmLength()
|
|
|
*/
|
|
|
qreal QPieSlice::labelArmLength() const
|
|
|
{
|
|
|
return m_labelArmLength;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
\fn void QPieSlice::clicked()
|
|
|
|
|
|
This signal is emitted when user has clicked the slice.
|
|
|
|
|
|
\sa QPieSeries::clicked()
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QPieSlice::hoverEnter()
|
|
|
|
|
|
This signal is emitted when user has hovered over the slice.
|
|
|
|
|
|
\sa QPieSeries::hoverEnter()
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QPieSlice::hoverLeave()
|
|
|
|
|
|
This signal is emitted when user has hovered away from the slice.
|
|
|
|
|
|
\sa QPieSeries::hoverLeave()
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QPieSlice::changed()
|
|
|
|
|
|
This signal emitted when something has changed in the slice.
|
|
|
|
|
|
\sa QPieSeries::changed()
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
Sets the value of this slice.
|
|
|
\sa value()
|
|
|
*/
|
|
|
void QPieSlice::setValue(qreal value)
|
|
|
{
|
|
|
if (m_value != value) {
|
|
|
m_value = value;
|
|
|
emit changed();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the \a label of the slice.
|
|
|
\sa label()
|
|
|
*/
|
|
|
void QPieSlice::setLabel(QString label)
|
|
|
{
|
|
|
if (m_label != label) {
|
|
|
m_label = label;
|
|
|
emit changed();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the label \a visible in this slice.
|
|
|
\sa isLabelVisible(), QPieSeries::setLabelsVisible()
|
|
|
*/
|
|
|
void QPieSlice::setLabelVisible(bool visible)
|
|
|
{
|
|
|
if (m_isLabelVisible != visible) {
|
|
|
m_isLabelVisible = visible;
|
|
|
emit changed();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets this slice \a exploded.
|
|
|
\sa isExploded(), setExplodeDistance(), QPieSeries::enableClickExplodes()
|
|
|
*/
|
|
|
void QPieSlice::setExploded(bool exploded)
|
|
|
{
|
|
|
if (m_isExploded != exploded) {
|
|
|
m_isExploded = exploded;
|
|
|
emit changed();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the explosion \a distance of this slice.
|
|
|
It is the distance the slice is moved away from the pie center.
|
|
|
\sa explodeDistance(), isExploded(), QPieSeries::enableClickExplodes()
|
|
|
*/
|
|
|
void QPieSlice::setExplodeDistance(qreal distance)
|
|
|
{
|
|
|
if (m_explodeDistance != distance) {
|
|
|
m_explodeDistance = distance;
|
|
|
emit changed();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the \a pen used to draw this slice.
|
|
|
Note that applying a theme will override this.
|
|
|
\sa pen()
|
|
|
*/
|
|
|
void QPieSlice::setPen(QPen pen)
|
|
|
{
|
|
|
if (m_pen != pen) {
|
|
|
m_pen = pen;
|
|
|
emit changed();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the \a brush used to draw this slice.
|
|
|
Note that applying a theme will override this.
|
|
|
\sa brush()
|
|
|
*/
|
|
|
void QPieSlice::setBrush(QBrush brush)
|
|
|
{
|
|
|
if (m_brush != brush) {
|
|
|
m_brush = brush;
|
|
|
emit changed();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the \a pen used to draw the label in this slice.
|
|
|
Note that applying a theme will override this.
|
|
|
\sa labelPen()
|
|
|
*/
|
|
|
void QPieSlice::setLabelPen(QPen pen)
|
|
|
{
|
|
|
if (m_labelPen != pen) {
|
|
|
m_labelPen = pen;
|
|
|
emit changed();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the \a font used to draw the label in this slice.
|
|
|
Note that applying a theme will override this.
|
|
|
\sa labelFont()
|
|
|
*/
|
|
|
void QPieSlice::setLabelFont(QFont font)
|
|
|
{
|
|
|
if (m_labelFont != font) {
|
|
|
m_labelFont = font;
|
|
|
emit changed();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the label arm \a length used to draw the label in this slice.
|
|
|
\sa labelArmLength()
|
|
|
*/
|
|
|
void QPieSlice::setLabelArmLength(qreal length)
|
|
|
{
|
|
|
if (m_labelArmLength != length) {
|
|
|
m_labelArmLength = length;
|
|
|
emit changed();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
#include "moc_qpieslice.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
