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

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

Cleanup build setup...
Cleanup build setup * adds seprate pri files for bar line charts * keeps soruces/headers in subdirs
Tero Ahola - - Load All Authors

File last commit:

r228:d02101a951c6
r249:bfba57666177
Show More
scatterpresenter.cpp
111 lines | 3.7 KiB | text/x-c | CppLexer
/ src / scatterseries / scatterpresenter.cpp
History | Source | Raw |Copy content |Copy permalink
Tero Ahola
Moved scatter impl into a subfolder
 r194 #include "scatterpresenter_p.h"
Tero Ahola
Integrated scatter again. Missing functionality....
 r158 #include "qscatterseries.h"
#include <QPen>
#include <QPainter>
#include <QGraphicsScene>
#include <QDebug>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
ScatterPresenter::ScatterPresenter(QScatterSeries *series, QGraphicsObject *parent) :
ChartItem(parent),
m_series(series),
m_boundingRect(),
//m_markerColor(QColor()),
Tero Ahola
Enabled theme colors in scatter again
 r182 // m_markerColor(QColor(255, 0, 0)),
Tero Ahola
Integrated scatter again. Missing functionality....
 r158 m_visibleChartArea()
{
if (parent)
m_boundingRect = parent->boundingRect();
if (series) {
connect(series, SIGNAL(changed()), this, SLOT(handleModelChanged()));
}
}
void ScatterPresenter::handleDomainChanged(const Domain& domain)
{
m_visibleChartArea = domain;
changeGeometry();
}
void ScatterPresenter::handleGeometryChanged(const QRectF& rect)
{
m_boundingRect = rect;
changeGeometry();
}
void ScatterPresenter::handleModelChanged()
{
// TODO: more fine grained modelChanged signaling
changeGeometry();
}
void ScatterPresenter::paint(QPainter *painter, const QStyleOptionGraphicsItem */*option*/, QWidget */*widget*/)
{
Tero Ahola
Scatter series marker visuals
 r195 // TODO: Optimization: avoid setting on every paint method call?
// The custom settings in series override those defined by the theme
if (m_series->markerPen().color().isValid()) {
painter->setPen(m_series->markerPen());
painter->setBrush(m_series->markerBrush());
} else {
painter->setPen(m_markerPen);
painter->setBrush(m_markerBrush);
Tero Ahola
Integrated scatter again. Missing functionality....
 r158 }
Tero Ahola
Scatter series marker visuals
 r195 int shape = m_series->markerShape();
Tero Ahola
Integrated scatter again. Missing functionality....
 r158 for (int i(0); i < m_scenex.count() && i < m_sceney.count(); i++) {
if (scene()->width() > m_scenex.at(i) && scene()->height() > m_sceney.at(i))
Tero Ahola
Scatter series marker visuals
 r195 // Paint a shape
switch (shape) {
case QScatterSeries::MarkerShapeDefault:
// Fallthrough, defaults to circle
case QScatterSeries::MarkerShapeCircle:
painter->drawChord(m_scenex.at(i), m_sceney.at(i), 9, 9, 0, 5760);
break;
case QScatterSeries::MarkerShapePoint:
painter->drawPoint(m_scenex.at(i), m_sceney.at(i));
break;
case QScatterSeries::MarkerShapeRectangle:
painter->drawRect(m_scenex.at(i), m_sceney.at(i), 9, 9);
break;
Tero Ahola
Scatter series marker visuals
 r228 case QScatterSeries::MarkerShapeTiltedRectangle:
// TODO:
static const QPointF points[4] = {
QPointF(-1.0 + m_scenex.at(i), 0.0 + m_sceney.at(i)),
QPointF(0.0 + m_scenex.at(i), 1.0 + m_sceney.at(i)),
QPointF(1.0 + m_scenex.at(i), 0.0 + m_sceney.at(i)),
QPointF(0.0 + m_scenex.at(i), -1.0 + m_sceney.at(i))
};
painter->drawPolygon(points, 4);
Tero Ahola
Scatter series marker visuals
 r195 break;
default:
// TODO: implement the rest of the shapes
Q_ASSERT(false);
break;
}
Tero Ahola
Integrated scatter again. Missing functionality....
 r158 }
}
void ScatterPresenter::changeGeometry()
{
if (m_boundingRect.isValid()) {
prepareGeometryChange();
qreal scalex = m_boundingRect.width() / m_visibleChartArea.spanX();
qreal scaley = m_boundingRect.height() / m_visibleChartArea.spanY();
m_scenex.clear();
m_sceney.clear();
// Convert relative coordinates to absolute pixel coordinates that can be used for drawing
foreach (QPointF point, m_series->data()) {
m_scenex.append(m_boundingRect.left() + point.x() * scalex - m_visibleChartArea.m_minX * scalex);
m_sceney.append(m_boundingRect.bottom() - point.y() * scaley + m_visibleChartArea.m_minY * scaley);
}
}
}
Tero Ahola
Moved scatter impl into a subfolder
 r194 #include "moc_scatterpresenter_p.cpp"
Tero Ahola
Integrated scatter again. Missing functionality....
 r158
QTCOMMERCIALCHART_END_NAMESPACE