|
|
|
|
|
#include "piepresenter_p.h"
|
|
|
#include "pieslice_p.h"
|
|
|
#include "qpieslice.h"
|
|
|
#include "pieslicelabel_p.h"
|
|
|
#include "qpieseries.h"
|
|
|
#include <qmath.h>
|
|
|
#include <QDebug>
|
|
|
#include <QFontMetrics>
|
|
|
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
PiePresenter::PiePresenter(QGraphicsItem *parent, QPieSeries *series)
|
|
|
:ChartItem(parent),
|
|
|
m_series(series)
|
|
|
{
|
|
|
Q_ASSERT(series);
|
|
|
connect(series, SIGNAL(changed(const QPieSeries::ChangeSet&)), this, SLOT(handleSeriesChanged(const QPieSeries::ChangeSet&)));
|
|
|
connect(series, SIGNAL(sizeFactorChanged()), this, SLOT(updateGeometry()));
|
|
|
connect(series, SIGNAL(positionChanged()), this, SLOT(updateGeometry()));
|
|
|
|
|
|
if (m_series->count()) {
|
|
|
QPieSeries::ChangeSet changeSet;
|
|
|
changeSet.appendAdded(m_series->m_slices);
|
|
|
handleSeriesChanged(changeSet);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
PiePresenter::~PiePresenter()
|
|
|
{
|
|
|
// slices deleted automatically through QGraphicsItem
|
|
|
}
|
|
|
|
|
|
void PiePresenter::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
|
|
|
{
|
|
|
// TODO: paint shadows for all components
|
|
|
// - get paths from items & merge & offset and draw with shadow color?
|
|
|
}
|
|
|
|
|
|
void PiePresenter::handleSeriesChanged(const QPieSeries::ChangeSet& changeSet)
|
|
|
{
|
|
|
//qDebug() << "PiePresenter::handleSeriesChanged()";
|
|
|
//qDebug() << " added : " << changeSet.added();
|
|
|
//qDebug() << " changed: " << changeSet.changed();
|
|
|
//qDebug() << " removed: " << changeSet.removed();
|
|
|
|
|
|
foreach (QPieSlice* s, changeSet.added())
|
|
|
addSlice(s);
|
|
|
|
|
|
foreach (QPieSlice* s, changeSet.changed())
|
|
|
updateSlice(s);
|
|
|
|
|
|
foreach (QPieSlice* s, changeSet.removed())
|
|
|
deleteSlice(s);
|
|
|
|
|
|
// every change possibly changes the actual pie size
|
|
|
updateGeometry();
|
|
|
}
|
|
|
|
|
|
void PiePresenter::handleDomainChanged(const Domain& domain)
|
|
|
{
|
|
|
// TODO
|
|
|
}
|
|
|
|
|
|
void PiePresenter::handleGeometryChanged(const QRectF& rect)
|
|
|
{
|
|
|
m_rect = rect;
|
|
|
prepareGeometryChange();
|
|
|
updateGeometry();
|
|
|
}
|
|
|
|
|
|
void PiePresenter::updateGeometry()
|
|
|
{
|
|
|
if (!m_rect.isValid() || m_rect.isEmpty())
|
|
|
return;
|
|
|
|
|
|
// calculate maximum rectangle for pie
|
|
|
QRectF pieRect = m_rect;
|
|
|
if (pieRect.width() < pieRect.height()) {
|
|
|
pieRect.setWidth(pieRect.width() * m_series->sizeFactor());
|
|
|
pieRect.setHeight(pieRect.width());
|
|
|
pieRect.moveCenter(m_rect.center());
|
|
|
} else {
|
|
|
pieRect.setHeight(pieRect.height() * m_series->sizeFactor());
|
|
|
pieRect.setWidth(pieRect.height());
|
|
|
pieRect.moveCenter(m_rect.center());
|
|
|
}
|
|
|
|
|
|
// position the pie rectangle
|
|
|
switch (m_series->position()) {
|
|
|
case QPieSeries::PiePositionTopLeft: {
|
|
|
pieRect.setHeight(pieRect.height() / 2);
|
|
|
pieRect.setWidth(pieRect.height());
|
|
|
pieRect.moveCenter(QPointF(m_rect.center().x() / 2, m_rect.center().y() / 2));
|
|
|
break;
|
|
|
}
|
|
|
case QPieSeries::PiePositionTopRight: {
|
|
|
pieRect.setHeight(pieRect.height() / 2);
|
|
|
pieRect.setWidth(pieRect.height());
|
|
|
pieRect.moveCenter(QPointF((m_rect.center().x() / 2) * 3, m_rect.center().y() / 2));
|
|
|
break;
|
|
|
}
|
|
|
case QPieSeries::PiePositionBottomLeft: {
|
|
|
pieRect.setHeight(pieRect.height() / 2);
|
|
|
pieRect.setWidth(pieRect.height());
|
|
|
pieRect.moveCenter(QPointF(m_rect.center().x() / 2, (m_rect.center().y() / 2) * 3));
|
|
|
break;
|
|
|
}
|
|
|
case QPieSeries::PiePositionBottomRight: {
|
|
|
pieRect.setHeight(pieRect.height() / 2);
|
|
|
pieRect.setWidth(pieRect.height());
|
|
|
pieRect.moveCenter(QPointF((m_rect.center().x() / 2) * 3, (m_rect.center().y() / 2) * 3));
|
|
|
break;
|
|
|
}
|
|
|
default:
|
|
|
break;
|
|
|
}
|
|
|
|
|
|
// calculate how much space we need around the pie rectangle (labels & exploding)
|
|
|
qreal delta = 0;
|
|
|
qreal pieRadius = pieRect.height() / 2;
|
|
|
foreach (QPieSlice* s, m_series->m_slices) {
|
|
|
|
|
|
// calculate the farthest point in the slice from the pie center
|
|
|
qreal centerAngle = s->m_startAngle + (s->m_angleSpan / 2);
|
|
|
qreal len = pieRadius + s->labelArmLength() + s->explodeDistance();
|
|
|
QPointF dp(qSin(centerAngle*(PI/180)) * len, -qCos(centerAngle*(PI/180)) * len);
|
|
|
QPointF p = pieRect.center() + dp;
|
|
|
|
|
|
// TODO: consider the label text
|
|
|
|
|
|
// calculate how much the radius must get smaller to fit that point in the base rectangle
|
|
|
qreal dt = m_rect.top() - p.y();
|
|
|
if (dt > delta) delta = dt;
|
|
|
qreal dl = m_rect.left() - p.x();
|
|
|
if (dl > delta) delta = dl;
|
|
|
qreal dr = p.x() - m_rect.right();
|
|
|
if (dr > delta) delta = dr;
|
|
|
qreal db = p.y() - m_rect.bottom();
|
|
|
if (db > delta) delta = db;
|
|
|
|
|
|
//if (!m_rect.contains(p)) qDebug() << s->label() << dt << dl << dr << db << "delta" << delta;
|
|
|
}
|
|
|
|
|
|
// shrink the pie rectangle so that everything outside it fits the base rectangle
|
|
|
pieRect.adjust(delta, delta, -delta, -delta);
|
|
|
|
|
|
// update slices
|
|
|
if (m_pieRect != pieRect) {
|
|
|
m_pieRect = pieRect;
|
|
|
//qDebug() << "PiePresenter::updateGeometry()" << m_rect << m_pieRect;
|
|
|
foreach (PieSlice* s, m_slices.values()) {
|
|
|
s->setPieRect(m_pieRect);
|
|
|
s->updateGeometry();
|
|
|
s->update();
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void PiePresenter::addSlice(QPieSlice* sliceData)
|
|
|
{
|
|
|
//qDebug() << "PiePresenter::addSlice()" << sliceData;
|
|
|
|
|
|
if (m_slices.keys().contains(sliceData)) {
|
|
|
Q_ASSERT(0); // TODO: how to handle this nicely?
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
// create slice
|
|
|
PieSlice *slice = new PieSlice(this);
|
|
|
slice->setPieRect(m_pieRect);
|
|
|
slice->updateData(sliceData);
|
|
|
slice->updateGeometry();
|
|
|
slice->update();
|
|
|
m_slices.insert(sliceData, slice);
|
|
|
|
|
|
// connect signals
|
|
|
connect(slice, SIGNAL(clicked()), sliceData, SIGNAL(clicked()));
|
|
|
connect(slice, SIGNAL(hoverEnter()), sliceData, SIGNAL(hoverEnter()));
|
|
|
connect(slice, SIGNAL(hoverLeave()), sliceData, SIGNAL(hoverLeave()));
|
|
|
}
|
|
|
|
|
|
void PiePresenter::updateSlice(QPieSlice* sliceData)
|
|
|
{
|
|
|
//qDebug() << "PiePresenter::updateSlice()" << sliceData;
|
|
|
|
|
|
if (!m_slices.contains(sliceData)) {
|
|
|
Q_ASSERT(0); // TODO: how to handle this nicely?
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
m_slices[sliceData]->updateData(sliceData);
|
|
|
}
|
|
|
|
|
|
void PiePresenter::deleteSlice(QPieSlice* sliceData)
|
|
|
{
|
|
|
//qDebug() << "PiePresenter::deleteSlice()" << sliceData;
|
|
|
|
|
|
if (!m_slices.contains(sliceData)) {
|
|
|
Q_ASSERT(0); // TODO: how to handle this nicely?
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
delete m_slices.take(sliceData);
|
|
|
}
|
|
|
|
|
|
#include "moc_piepresenter_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
