##// END OF EJS Templates
HG_REPOSITORIES » LPP » INSTRUMENTATION » USERS » JEANDET » qtcharts
RSS

Clone from http://code.qt.io/qt/qtcharts.git

Adds preseterchart example
Adds preseterchart example
Jani Honkonen - - Load All Authors

File last commit:

r209:c977a59b6d90
r246:b65459a7fb5b
Show More
piepresenter.cpp
158 lines | 4.8 KiB | text/x-c | CppLexer
/ src / piechart / piepresenter.cpp
History | Source | Raw |Copy content |Copy permalink
Jani Honkonen
Pie chart refactoring
 r142
Jani Honkonen
Moved pie stuff to own .pri file and rename stuff
 r146 #include "piepresenter.h"
Jani Honkonen
Pie chart refactoring
 r142 #include "pieslice.h"
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 #include "qpieslice.h"
Jani Honkonen
Pie chart refactoring
 r142 #include <QDebug>
Jani Honkonen
Make pie work better with chartwidgettest
 r163 #include <QTime>
Jani Honkonen
Pie chart refactoring
 r142
QTCOMMERCIALCHART_BEGIN_NAMESPACE
Jani Honkonen
Refactoring piechart API (and internals)
 r174 PiePresenter::PiePresenter(QGraphicsItem *parent, QPieSeries *series)
:ChartItem(parent),
m_series(series)
Jani Honkonen
Pie chart refactoring
 r142 {
Q_ASSERT(series);
Jani Honkonen
Refactoring piechart API (and internals)
 r174 connect(series, SIGNAL(changed(const QPieSeries::ChangeSet&)), this, SLOT(handleSeriesChanged(const QPieSeries::ChangeSet&)));
Jani Honkonen
Make pie work better with chartwidgettest
 r163 connect(series, SIGNAL(sizeFactorChanged()), this, SLOT(updateGeometry()));
connect(series, SIGNAL(positionChanged()), this, SLOT(updateGeometry()));
Jani Honkonen
Pie chart refactoring
 r142 }
Jani Honkonen
Moved pie stuff to own .pri file and rename stuff
 r146 PiePresenter::~PiePresenter()
Jani Honkonen
Pie chart refactoring
 r142 {
Jani Honkonen
Refactoring piechart API (and internals)
 r174 // slices deleted automatically through QGraphicsItem
Jani Honkonen
Pie chart refactoring
 r142 }
Jani Honkonen
Refactoring piechart API (and internals)
 r174 void PiePresenter::paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *)
Jani Honkonen
Pie chart refactoring
 r142 {
Jani Honkonen
Refactoring piechart API (and internals)
 r174 // TODO: paint shadows for all components
// - get paths from items & merge & offset and draw with shadow color?
}
void PiePresenter::handleSeriesChanged(const QPieSeries::ChangeSet& changeSet)
{
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 //qDebug() << "PiePresenter::handleSeriesChanged()";
//qDebug() << " added : " << changeSet.added();
//qDebug() << " changed: " << changeSet.changed();
//qDebug() << " removed: " << changeSet.removed();
Jani Honkonen
Refactoring piechart API (and internals)
 r174
// ignore changeset when there are no visual slices
// changeset might not be valid about the added slices
if (m_slices.count() == 0) {
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 foreach (QPieSlice* s, m_series->m_slices)
addSlice(s);
Jani Honkonen
Refactoring piechart API (and internals)
 r174 return;
Jani Honkonen
Make pie work better with chartwidgettest
 r163 }
Jani Honkonen
Pie chart refactoring
 r142
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 foreach (QPieSlice* s, changeSet.removed())
deleteSlice(s);
Jani Honkonen
Pie chart refactoring
 r142
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 foreach (QPieSlice* s, changeSet.added())
addSlice(s);
}
Jani Honkonen
Refactoring piechart API (and internals)
 r174
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 void PiePresenter::handleDomainChanged(const Domain& domain)
{
// TODO
}
void PiePresenter::handleGeometryChanged(const QRectF& rect)
{
m_rect = rect;
updateGeometry();
Jani Honkonen
Pie chart refactoring
 r142 }
Jani Honkonen
Use signals from pieseries, visible hover and exploding slices
 r157 void PiePresenter::updateGeometry()
Jani Honkonen
Pie chart refactoring
 r142 {
Jani Honkonen
Use signals from pieseries, visible hover and exploding slices
 r157 prepareGeometryChange();
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 QRectF pieRect = m_rect;
Jani Honkonen
Pie chart refactoring
 r142
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 if (pieRect.width() < pieRect.height()) {
pieRect.setWidth(pieRect.width() * m_series->sizeFactor());
pieRect.setHeight(pieRect.width());
pieRect.moveCenter(m_rect.center());
Jani Honkonen
Pie chart refactoring
 r142 } else {
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 pieRect.setHeight(pieRect.height() * m_series->sizeFactor());
pieRect.setWidth(pieRect.height());
pieRect.moveCenter(m_rect.center());
Jani Honkonen
Pie chart refactoring
 r142 }
Jani Honkonen
Refactoring piechart API (and internals)
 r174 switch (m_series->position()) {
Jani Honkonen
Pie chart refactoring
 r142 case QPieSeries::PiePositionTopLeft: {
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 pieRect.setHeight(pieRect.height() / 2);
pieRect.setWidth(pieRect.height());
pieRect.moveCenter(QPointF(m_rect.center().x() / 2, m_rect.center().y() / 2));
Jani Honkonen
Pie chart refactoring
 r142 break;
}
case QPieSeries::PiePositionTopRight: {
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 pieRect.setHeight(pieRect.height() / 2);
pieRect.setWidth(pieRect.height());
pieRect.moveCenter(QPointF((m_rect.center().x() / 2) * 3, m_rect.center().y() / 2));
Jani Honkonen
Pie chart refactoring
 r142 break;
}
case QPieSeries::PiePositionBottomLeft: {
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 pieRect.setHeight(pieRect.height() / 2);
pieRect.setWidth(pieRect.height());
pieRect.moveCenter(QPointF(m_rect.center().x() / 2, (m_rect.center().y() / 2) * 3));
Jani Honkonen
Pie chart refactoring
 r142 break;
}
case QPieSeries::PiePositionBottomRight: {
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 pieRect.setHeight(pieRect.height() / 2);
pieRect.setWidth(pieRect.height());
pieRect.moveCenter(QPointF((m_rect.center().x() / 2) * 3, (m_rect.center().y() / 2) * 3));
Jani Honkonen
Pie chart refactoring
 r142 break;
}
default:
break;
}
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 if (m_pieRect != pieRect) {
m_pieRect = pieRect;
//qDebug() << "PiePresenter::updateGeometry()" << m_pieRect;
foreach (PieSlice* s, m_slices.values()) {
s->setPieRect(m_pieRect);
s->updateGeometry();
}
Jani Honkonen
Refactoring piechart API (and internals)
 r174 }
Jani Honkonen
Pie chart refactoring
 r142 }
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 void PiePresenter::addSlice(QPieSlice* sliceData)
Jani Honkonen
Pie chart refactoring
 r142 {
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 //qDebug() << "PiePresenter::addSlice()" << sliceData;
Jani Honkonen
Pie chart refactoring
 r142
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 if (m_slices.keys().contains(sliceData)) {
//qWarning() << "PiePresenter::addSlice(): slice already exists!" << sliceData;
Q_ASSERT(0);
Jani Honkonen
Refactoring piechart API (and internals)
 r174 return;
}
// create slice
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 PieSlice *slice = new PieSlice(this);
Jani Honkonen
Fix initial pie position bug
 r208 slice->setPieRect(m_pieRect);
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 slice->updateData(sliceData);
Jani Honkonen
Fix issue with pie label not drawn correctly when first created
 r209 slice->updateGeometry();
slice->update();
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 m_slices.insert(sliceData, slice);
// connect signals
connect(sliceData, SIGNAL(changed()), slice, SLOT(handleSliceDataChanged()));
connect(slice, SIGNAL(clicked()), sliceData, SIGNAL(clicked()));
connect(slice, SIGNAL(hoverEnter()), sliceData, SIGNAL(hoverEnter()));
connect(slice, SIGNAL(hoverLeave()), sliceData, SIGNAL(hoverLeave()));
Jani Honkonen
Refactoring piechart API (and internals)
 r174 }
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 void PiePresenter::deleteSlice(QPieSlice* sliceData)
Jani Honkonen
Refactoring piechart API (and internals)
 r174 {
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 //qDebug() << "PiePresenter::deleteSlice()" << sliceData;
Jani Honkonen
Refactoring piechart API (and internals)
 r174
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 if (m_slices.contains(sliceData))
delete m_slices.take(sliceData);
Jani Honkonen
Refactoring piechart API (and internals)
 r174 else {
Jani Honkonen
Refactor pie (again). QPieSlice's now emit signals and no id's anymore. Just pointers in the interface.
 r203 // nothing to remove
Q_ASSERT(0); // TODO: remove before release
Jani Honkonen
Refactoring piechart API (and internals)
 r174 }
Jani Honkonen
Pie chart refactoring
 r142 }
Jani Honkonen
Moved pie stuff to own .pri file and rename stuff
 r146 #include "moc_piepresenter.cpp"
Jani Honkonen
Pie chart refactoring
 r142
QTCOMMERCIALCHART_END_NAMESPACE