|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2015 The Qt Company Ltd
|
|
|
** All rights reserved.
|
|
|
** For any questions to The Qt Company, please use contact form at http://qt.io
|
|
|
**
|
|
|
** This file is part of the Qt Charts module.
|
|
|
**
|
|
|
** Licensees holding valid commercial license for Qt may use this file in
|
|
|
** accordance with the Qt License Agreement provided with the Software
|
|
|
** or, alternatively, in accordance with the terms contained in a written
|
|
|
** agreement between you and The Qt Company.
|
|
|
**
|
|
|
** If you have questions regarding the use of this file, please use
|
|
|
** contact form at http://qt.io
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
|
|
|
#include <private/piechartitem_p.h>
|
|
|
#include <private/piesliceitem_p.h>
|
|
|
#include <QtCharts/QPieSlice>
|
|
|
#include <private/qpieslice_p.h>
|
|
|
#include <QtCharts/QPieSeries>
|
|
|
#include <private/qpieseries_p.h>
|
|
|
#include <private/chartpresenter_p.h>
|
|
|
#include <private/chartdataset_p.h>
|
|
|
#include <private/pieanimation_p.h>
|
|
|
#include <QtGui/QPainter>
|
|
|
#include <QtCore/QTimer>
|
|
|
|
|
|
QT_CHARTS_BEGIN_NAMESPACE
|
|
|
|
|
|
PieChartItem::PieChartItem(QPieSeries *series, QGraphicsItem* item)
|
|
|
: ChartItem(series->d_func(),item),
|
|
|
m_series(series),
|
|
|
m_animation(0)
|
|
|
{
|
|
|
Q_ASSERT(series);
|
|
|
|
|
|
QPieSeriesPrivate *p = QPieSeriesPrivate::fromSeries(series);
|
|
|
connect(series, SIGNAL(visibleChanged()), this, SLOT(handleSeriesVisibleChanged()));
|
|
|
connect(series, SIGNAL(opacityChanged()), this, SLOT(handleOpacityChanged()));
|
|
|
connect(series, SIGNAL(added(QList<QPieSlice*>)), this, SLOT(handleSlicesAdded(QList<QPieSlice*>)));
|
|
|
connect(series, SIGNAL(removed(QList<QPieSlice*>)), this, SLOT(handleSlicesRemoved(QList<QPieSlice*>)));
|
|
|
connect(p, SIGNAL(horizontalPositionChanged()), this, SLOT(updateLayout()));
|
|
|
connect(p, SIGNAL(verticalPositionChanged()), this, SLOT(updateLayout()));
|
|
|
connect(p, SIGNAL(pieSizeChanged()), this, SLOT(updateLayout()));
|
|
|
connect(p, SIGNAL(calculatedDataChanged()), this, SLOT(updateLayout()));
|
|
|
|
|
|
// Note: the following does not affect as long as the item does not have anything to paint
|
|
|
setZValue(ChartPresenter::PieSeriesZValue);
|
|
|
|
|
|
// Note: will not create slice items until we have a proper rectangle to draw on.
|
|
|
|
|
|
setFlag(QGraphicsItem::ItemIsSelectable);
|
|
|
}
|
|
|
|
|
|
PieChartItem::~PieChartItem()
|
|
|
{
|
|
|
// slices deleted automatically through QGraphicsItem
|
|
|
if (m_series) {
|
|
|
m_series->disconnect(this);
|
|
|
QPieSeriesPrivate::fromSeries(m_series)->disconnect(this);
|
|
|
}
|
|
|
foreach (QPieSlice *slice, m_sliceItems.keys()) {
|
|
|
slice->disconnect(this);
|
|
|
QPieSlicePrivate::fromSlice(slice)->disconnect(this);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void PieChartItem::setAnimation(PieAnimation *animation)
|
|
|
{
|
|
|
m_animation = animation;
|
|
|
}
|
|
|
|
|
|
ChartAnimation *PieChartItem::animation() const
|
|
|
{
|
|
|
return m_animation;
|
|
|
}
|
|
|
|
|
|
void PieChartItem::handleDomainUpdated()
|
|
|
{
|
|
|
QRectF rect(QPointF(0,0),domain()->size());
|
|
|
if(m_rect!=rect){
|
|
|
prepareGeometryChange();
|
|
|
m_rect = rect;
|
|
|
updateLayout();
|
|
|
|
|
|
if (m_sliceItems.isEmpty())
|
|
|
handleSlicesAdded(m_series->slices());
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void PieChartItem::updateLayout()
|
|
|
{
|
|
|
// find pie center coordinates
|
|
|
m_pieCenter.setX(m_rect.left() + (m_rect.width() * m_series->horizontalPosition()));
|
|
|
m_pieCenter.setY(m_rect.top() + (m_rect.height() * m_series->verticalPosition()));
|
|
|
|
|
|
// find maximum radius for pie
|
|
|
m_pieRadius = m_rect.height() / 2;
|
|
|
if (m_rect.width() < m_rect.height())
|
|
|
m_pieRadius = m_rect.width() / 2;
|
|
|
|
|
|
m_holeSize = m_pieRadius;
|
|
|
// apply size factor
|
|
|
m_pieRadius *= m_series->pieSize();
|
|
|
m_holeSize *= m_series->holeSize();
|
|
|
|
|
|
// set layouts for existing slice items
|
|
|
foreach (QPieSlice *slice, m_series->slices()) {
|
|
|
PieSliceItem *sliceItem = m_sliceItems.value(slice);
|
|
|
if (sliceItem) {
|
|
|
PieSliceData sliceData = updateSliceGeometry(slice);
|
|
|
if (m_animation)
|
|
|
presenter()->startAnimation(m_animation->updateValue(sliceItem, sliceData));
|
|
|
else
|
|
|
sliceItem->setLayout(sliceData);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
update();
|
|
|
}
|
|
|
|
|
|
void PieChartItem::handleSlicesAdded(QList<QPieSlice *> slices)
|
|
|
{
|
|
|
// delay creating slice items until there is a proper rectangle
|
|
|
if (!m_rect.isValid() && m_sliceItems.isEmpty())
|
|
|
return;
|
|
|
|
|
|
themeManager()->updateSeries(m_series);
|
|
|
|
|
|
bool startupAnimation = m_sliceItems.isEmpty();
|
|
|
|
|
|
foreach(QPieSlice * slice, slices) {
|
|
|
PieSliceItem *sliceItem = new PieSliceItem(this);
|
|
|
m_sliceItems.insert(slice, sliceItem);
|
|
|
|
|
|
// Note: no need to connect to slice valueChanged() etc.
|
|
|
// This is handled through calculatedDataChanged signal.
|
|
|
connect(slice, SIGNAL(labelChanged()), this, SLOT(handleSliceChanged()));
|
|
|
connect(slice, SIGNAL(labelVisibleChanged()), this, SLOT(handleSliceChanged()));
|
|
|
connect(slice, SIGNAL(penChanged()), this, SLOT(handleSliceChanged()));
|
|
|
connect(slice, SIGNAL(brushChanged()), this, SLOT(handleSliceChanged()));
|
|
|
connect(slice, SIGNAL(labelBrushChanged()), this, SLOT(handleSliceChanged()));
|
|
|
connect(slice, SIGNAL(labelFontChanged()), this, SLOT(handleSliceChanged()));
|
|
|
|
|
|
QPieSlicePrivate *p = QPieSlicePrivate::fromSlice(slice);
|
|
|
connect(p, SIGNAL(labelPositionChanged()), this, SLOT(handleSliceChanged()));
|
|
|
connect(p, SIGNAL(explodedChanged()), this, SLOT(handleSliceChanged()));
|
|
|
connect(p, SIGNAL(labelArmLengthFactorChanged()), this, SLOT(handleSliceChanged()));
|
|
|
connect(p, SIGNAL(explodeDistanceFactorChanged()), this, SLOT(handleSliceChanged()));
|
|
|
|
|
|
connect(sliceItem, SIGNAL(clicked(Qt::MouseButtons)), slice, SIGNAL(clicked()));
|
|
|
connect(sliceItem, SIGNAL(hovered(bool)), slice, SIGNAL(hovered(bool)));
|
|
|
connect(sliceItem, SIGNAL(pressed(Qt::MouseButtons)), slice, SIGNAL(pressed()));
|
|
|
connect(sliceItem, SIGNAL(released(Qt::MouseButtons)), slice, SIGNAL(released()));
|
|
|
connect(sliceItem, SIGNAL(doubleClicked(Qt::MouseButtons)), slice, SIGNAL(doubleClicked()));
|
|
|
|
|
|
PieSliceData sliceData = updateSliceGeometry(slice);
|
|
|
if (m_animation)
|
|
|
presenter()->startAnimation(m_animation->addSlice(sliceItem, sliceData, startupAnimation));
|
|
|
else
|
|
|
sliceItem->setLayout(sliceData);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void PieChartItem::handleSlicesRemoved(QList<QPieSlice *> slices)
|
|
|
{
|
|
|
themeManager()->updateSeries(m_series);
|
|
|
|
|
|
foreach (QPieSlice *slice, slices) {
|
|
|
|
|
|
PieSliceItem *sliceItem = m_sliceItems.value(slice);
|
|
|
|
|
|
// this can happen if you call append() & remove() in a row so that PieSliceItem is not even created
|
|
|
if (!sliceItem)
|
|
|
continue;
|
|
|
|
|
|
m_sliceItems.remove(slice);
|
|
|
slice->disconnect(this);
|
|
|
QPieSlicePrivate::fromSlice(slice)->disconnect(this);
|
|
|
|
|
|
if (m_animation)
|
|
|
presenter()->startAnimation(m_animation->removeSlice(sliceItem)); // animator deletes the PieSliceItem
|
|
|
else
|
|
|
delete sliceItem;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void PieChartItem::handleSliceChanged()
|
|
|
{
|
|
|
QPieSlice *slice = qobject_cast<QPieSlice *>(sender());
|
|
|
if (!slice) {
|
|
|
QPieSlicePrivate *slicep = qobject_cast<QPieSlicePrivate *>(sender());
|
|
|
slice = slicep->q_ptr;
|
|
|
}
|
|
|
Q_ASSERT(m_sliceItems.contains(slice));
|
|
|
|
|
|
PieSliceItem *sliceItem = m_sliceItems.value(slice);
|
|
|
PieSliceData sliceData = updateSliceGeometry(slice);
|
|
|
if (m_animation)
|
|
|
presenter()->startAnimation(m_animation->updateValue(sliceItem, sliceData));
|
|
|
else
|
|
|
sliceItem->setLayout(sliceData);
|
|
|
|
|
|
update();
|
|
|
}
|
|
|
|
|
|
void PieChartItem::handleSeriesVisibleChanged()
|
|
|
{
|
|
|
setVisible(m_series->isVisible());
|
|
|
}
|
|
|
|
|
|
void PieChartItem::handleOpacityChanged()
|
|
|
{
|
|
|
setOpacity(m_series->opacity());
|
|
|
}
|
|
|
|
|
|
PieSliceData PieChartItem::updateSliceGeometry(QPieSlice *slice)
|
|
|
{
|
|
|
PieSliceData &sliceData = QPieSlicePrivate::fromSlice(slice)->m_data;
|
|
|
sliceData.m_center = PieSliceItem::sliceCenter(m_pieCenter, m_pieRadius, slice);
|
|
|
sliceData.m_radius = m_pieRadius;
|
|
|
sliceData.m_holeRadius = m_holeSize;
|
|
|
return sliceData;
|
|
|
}
|
|
|
|
|
|
#include "moc_piechartitem_p.cpp"
|
|
|
|
|
|
QT_CHARTS_END_NAMESPACE
|
|
|
|
