|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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
|
|
|
** $QT_END_LICENSE$
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
|
|
|
#include "piechartitem_p.h"
|
|
|
#include "piesliceitem_p.h"
|
|
|
#include "qpieslice.h"
|
|
|
#include "qpieseries.h"
|
|
|
#include "chartpresenter_p.h"
|
|
|
#include "chartdataset_p.h"
|
|
|
#include "chartanimator_p.h"
|
|
|
#include <QDebug>
|
|
|
#include <QPainter>
|
|
|
#include <QTimer>
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
PieChartItem::PieChartItem(QPieSeries *series, ChartPresenter* presenter)
|
|
|
:ChartItem(presenter),
|
|
|
m_series(series)
|
|
|
{
|
|
|
Q_ASSERT(series);
|
|
|
connect(series, SIGNAL(added(QList<QPieSlice*>)), this, SLOT(handleSlicesAdded(QList<QPieSlice*>)));
|
|
|
connect(series, SIGNAL(removed(QList<QPieSlice*>)), this, SLOT(handleSlicesRemoved(QList<QPieSlice*>)));
|
|
|
connect(series, SIGNAL(piePositionChanged()), this, SLOT(handlePieLayoutChanged()));
|
|
|
connect(series, SIGNAL(pieSizeChanged()), this, SLOT(handlePieLayoutChanged()));
|
|
|
|
|
|
QTimer::singleShot(0, this, SLOT(initialize()));
|
|
|
|
|
|
// Note: the following does not affect as long as the item does not have anything to paint
|
|
|
setZValue(ChartPresenter::PieSeriesZValue);
|
|
|
}
|
|
|
|
|
|
PieChartItem::~PieChartItem()
|
|
|
{
|
|
|
// slices deleted automatically through QGraphicsItem
|
|
|
}
|
|
|
|
|
|
void PieChartItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
|
|
|
{
|
|
|
Q_UNUSED(painter)
|
|
|
// TODO: paint shadows for all components
|
|
|
// - get paths from items & merge & offset and draw with shadow color?
|
|
|
//painter->setBrush(QBrush(Qt::red));
|
|
|
//painter->drawRect(m_debugRect);
|
|
|
}
|
|
|
|
|
|
void PieChartItem::initialize()
|
|
|
{
|
|
|
handleSlicesAdded(m_series->slices());
|
|
|
}
|
|
|
|
|
|
void PieChartItem::handleSlicesAdded(QList<QPieSlice*> slices)
|
|
|
{
|
|
|
bool isEmpty = m_slices.isEmpty();
|
|
|
|
|
|
presenter()->chartTheme()->decorate(m_series, presenter()->dataSet()->seriesIndex(m_series), false);
|
|
|
|
|
|
foreach (QPieSlice *s, slices) {
|
|
|
PieSliceItem* item = new PieSliceItem(this);
|
|
|
m_slices.insert(s, item);
|
|
|
connect(s, SIGNAL(changed()), this, SLOT(handleSliceChanged()));
|
|
|
connect(item, SIGNAL(clicked(Qt::MouseButtons)), s, SIGNAL(clicked(Qt::MouseButtons)));
|
|
|
connect(item, SIGNAL(hoverEnter()), s, SIGNAL(hoverEnter()));
|
|
|
connect(item, SIGNAL(hoverLeave()), s, SIGNAL(hoverLeave()));
|
|
|
|
|
|
PieSliceData data = sliceData(s);
|
|
|
|
|
|
if (animator())
|
|
|
animator()->addAnimation(this, s, data, isEmpty);
|
|
|
else
|
|
|
setLayout(s, data);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void PieChartItem::handleSlicesRemoved(QList<QPieSlice*> slices)
|
|
|
{
|
|
|
presenter()->chartTheme()->decorate(m_series, presenter()->dataSet()->seriesIndex(m_series), false);
|
|
|
|
|
|
foreach (QPieSlice *s, slices) {
|
|
|
if (animator())
|
|
|
animator()->removeAnimation(this, s);
|
|
|
else
|
|
|
destroySlice(s);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void PieChartItem::handlePieLayoutChanged()
|
|
|
{
|
|
|
PieLayout layout = calculateLayout();
|
|
|
applyLayout(layout);
|
|
|
update();
|
|
|
}
|
|
|
|
|
|
void PieChartItem::handleSliceChanged()
|
|
|
{
|
|
|
QPieSlice* slice = qobject_cast<QPieSlice *>(sender());
|
|
|
Q_ASSERT(m_slices.contains(slice));
|
|
|
PieSliceData data = sliceData(slice);
|
|
|
updateLayout(slice, data);
|
|
|
update();
|
|
|
}
|
|
|
|
|
|
void PieChartItem::handleDomainChanged(qreal, qreal, qreal, qreal)
|
|
|
{
|
|
|
// TODO
|
|
|
}
|
|
|
|
|
|
void PieChartItem::handleGeometryChanged(const QRectF& rect)
|
|
|
{
|
|
|
prepareGeometryChange();
|
|
|
m_rect = rect;
|
|
|
handlePieLayoutChanged();
|
|
|
}
|
|
|
|
|
|
void PieChartItem::calculatePieLayout()
|
|
|
{
|
|
|
// find pie center coordinates
|
|
|
m_pieCenter.setX(m_rect.left() + (m_rect.width() * m_series->pieHorizontalPosition()));
|
|
|
m_pieCenter.setY(m_rect.top() + (m_rect.height() * m_series->pieVerticalPosition()));
|
|
|
|
|
|
// find maximum radius for pie
|
|
|
m_pieRadius = m_rect.height() / 2;
|
|
|
if (m_rect.width() < m_rect.height())
|
|
|
m_pieRadius = m_rect.width() / 2;
|
|
|
|
|
|
// apply size factor
|
|
|
m_pieRadius *= m_series->pieSize();
|
|
|
}
|
|
|
|
|
|
PieSliceData PieChartItem::sliceData(QPieSlice *slice)
|
|
|
{
|
|
|
// TODO: This function is kid of useless now. Refactor.
|
|
|
PieSliceData sliceData = PieSliceData::data(slice);
|
|
|
sliceData.m_center = PieSliceItem::sliceCenter(m_pieCenter, m_pieRadius, slice);
|
|
|
sliceData.m_radius = m_pieRadius;
|
|
|
return sliceData;
|
|
|
}
|
|
|
|
|
|
PieLayout PieChartItem::calculateLayout()
|
|
|
{
|
|
|
calculatePieLayout();
|
|
|
PieLayout layout;
|
|
|
foreach (QPieSlice* s, m_series->slices()) {
|
|
|
if (m_slices.contains(s)) // calculate layout only for those slices that are already visible
|
|
|
layout.insert(s, sliceData(s));
|
|
|
}
|
|
|
return layout;
|
|
|
}
|
|
|
|
|
|
void PieChartItem::applyLayout(const PieLayout &layout)
|
|
|
{
|
|
|
if (animator())
|
|
|
animator()->updateLayout(this, layout);
|
|
|
else
|
|
|
setLayout(layout);
|
|
|
}
|
|
|
|
|
|
void PieChartItem::updateLayout(QPieSlice *slice, const PieSliceData &sliceData)
|
|
|
{
|
|
|
if (animator())
|
|
|
animator()->updateLayout(this, slice, sliceData);
|
|
|
else
|
|
|
setLayout(slice, sliceData);
|
|
|
}
|
|
|
|
|
|
void PieChartItem::setLayout(const PieLayout &layout)
|
|
|
{
|
|
|
foreach (QPieSlice *slice, layout.keys()) {
|
|
|
PieSliceItem *item = m_slices.value(slice);
|
|
|
Q_ASSERT(item);
|
|
|
item->setSliceData(layout.value(slice));
|
|
|
item->updateGeometry();
|
|
|
item->update();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void PieChartItem::setLayout(QPieSlice *slice, const PieSliceData &sliceData)
|
|
|
{
|
|
|
// find slice
|
|
|
PieSliceItem *item = m_slices.value(slice);
|
|
|
Q_ASSERT(item);
|
|
|
item->setSliceData(sliceData);
|
|
|
item->updateGeometry();
|
|
|
item->update();
|
|
|
}
|
|
|
|
|
|
void PieChartItem::destroySlice(QPieSlice *slice)
|
|
|
{
|
|
|
delete m_slices.take(slice);
|
|
|
}
|
|
|
|
|
|
#include "moc_piechartitem_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
