|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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 "splinechartitem_p.h"
|
|
|
#include "qsplineseries_p.h"
|
|
|
#include "chartpresenter_p.h"
|
|
|
#include "splineanimation_p.h"
|
|
|
#include "abstractdomain_p.h"
|
|
|
#include <QPainter>
|
|
|
#include <QGraphicsSceneMouseEvent>
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
SplineChartItem::SplineChartItem(QSplineSeries *series, QGraphicsItem* item)
|
|
|
: XYChart(series,item),
|
|
|
m_series(series),
|
|
|
m_pointsVisible(false),
|
|
|
m_animation(0)
|
|
|
{
|
|
|
setAcceptHoverEvents(true);
|
|
|
setZValue(ChartPresenter::SplineChartZValue);
|
|
|
QObject::connect(m_series->d_func(), SIGNAL(updated()), this, SLOT(handleUpdated()));
|
|
|
QObject::connect(series, SIGNAL(visibleChanged()), this, SLOT(handleUpdated()));
|
|
|
QObject::connect(series, SIGNAL(opacityChanged()), this, SLOT(handleUpdated()));
|
|
|
handleUpdated();
|
|
|
}
|
|
|
|
|
|
QRectF SplineChartItem::boundingRect() const
|
|
|
{
|
|
|
return m_rect;
|
|
|
}
|
|
|
|
|
|
QPainterPath SplineChartItem::shape() const
|
|
|
{
|
|
|
QPainterPathStroker stroker;
|
|
|
return stroker.createStroke(m_path);
|
|
|
}
|
|
|
|
|
|
void SplineChartItem::setAnimation(SplineAnimation *animation)
|
|
|
{
|
|
|
m_animation = animation;
|
|
|
XYChart::setAnimation(animation);
|
|
|
}
|
|
|
|
|
|
ChartAnimation *SplineChartItem::animation() const
|
|
|
{
|
|
|
return m_animation;
|
|
|
}
|
|
|
|
|
|
void SplineChartItem::setControlGeometryPoints(QVector<QPointF>& points)
|
|
|
{
|
|
|
m_controlPoints = points;
|
|
|
}
|
|
|
|
|
|
QVector<QPointF> SplineChartItem::controlGeometryPoints() const
|
|
|
{
|
|
|
return m_controlPoints;
|
|
|
}
|
|
|
|
|
|
void SplineChartItem::updateChart(QVector<QPointF> &oldPoints, QVector<QPointF> &newPoints, int index)
|
|
|
{
|
|
|
QVector<QPointF> controlPoints;
|
|
|
|
|
|
if (newPoints.count() >= 2)
|
|
|
controlPoints.resize(newPoints.count() * 2 - 2);
|
|
|
|
|
|
for (int i = 0; i < newPoints.size() - 1; i++) {
|
|
|
controlPoints[2 * i] = calculateGeometryControlPoint(2 * i);
|
|
|
controlPoints[2 * i + 1] = calculateGeometryControlPoint(2 * i + 1);
|
|
|
}
|
|
|
|
|
|
if (m_animation)
|
|
|
m_animation->setup(oldPoints, newPoints, m_controlPoints, controlPoints, index);
|
|
|
|
|
|
m_points = newPoints;
|
|
|
m_controlPoints = controlPoints;
|
|
|
setDirty(false);
|
|
|
|
|
|
if (m_animation)
|
|
|
presenter()->startAnimation(m_animation);
|
|
|
else
|
|
|
updateGeometry();
|
|
|
}
|
|
|
|
|
|
QPointF SplineChartItem::calculateGeometryControlPoint(int index) const
|
|
|
{
|
|
|
return domain()->calculateGeometryPoint(m_series->d_func()->controlPoint(index));
|
|
|
}
|
|
|
|
|
|
void SplineChartItem::updateGeometry()
|
|
|
{
|
|
|
const QVector<QPointF> &points = m_points;
|
|
|
const QVector<QPointF> &controlPoints = m_controlPoints;
|
|
|
|
|
|
if ((points.size() < 2) || (controlPoints.size() < 2)) {
|
|
|
prepareGeometryChange();
|
|
|
m_path = QPainterPath();
|
|
|
m_rect = QRect();
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
Q_ASSERT(points.count() * 2 - 2 == controlPoints.count());
|
|
|
|
|
|
QPainterPath splinePath(points.at(0));
|
|
|
|
|
|
for (int i = 0; i < points.size() - 1; i++) {
|
|
|
const QPointF &point = points.at(i + 1);
|
|
|
splinePath.cubicTo(controlPoints[2 * i], controlPoints[2 * i + 1], point);
|
|
|
}
|
|
|
|
|
|
prepareGeometryChange();
|
|
|
// QPainterPathStroker stroker;
|
|
|
// stroker.setWidth(m_linePen.width() / 2.0);
|
|
|
// m_path = stroker.createStroke(splinePath);
|
|
|
m_path = splinePath;
|
|
|
m_rect = splinePath.boundingRect();
|
|
|
|
|
|
}
|
|
|
|
|
|
//handlers
|
|
|
|
|
|
void SplineChartItem::handleUpdated()
|
|
|
{
|
|
|
setVisible(m_series->isVisible());
|
|
|
setOpacity(m_series->opacity());
|
|
|
m_pointsVisible = m_series->pointsVisible();
|
|
|
m_linePen = m_series->pen();
|
|
|
m_pointPen = m_series->pen();
|
|
|
m_pointPen.setWidthF(2 * m_pointPen.width());
|
|
|
update();
|
|
|
}
|
|
|
|
|
|
//painter
|
|
|
|
|
|
void SplineChartItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
|
|
|
{
|
|
|
Q_UNUSED(widget)
|
|
|
Q_UNUSED(option)
|
|
|
|
|
|
painter->save();
|
|
|
painter->setClipRect(QRectF(QPointF(0,0),domain()->size()));
|
|
|
painter->setPen(m_linePen);
|
|
|
// painter->setBrush(m_linePen.color());
|
|
|
|
|
|
painter->drawPath(m_path);
|
|
|
if (m_pointsVisible) {
|
|
|
painter->setPen(m_pointPen);
|
|
|
painter->drawPoints(geometryPoints());
|
|
|
}
|
|
|
painter->restore();
|
|
|
}
|
|
|
|
|
|
void SplineChartItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
|
|
|
{
|
|
|
emit XYChart::clicked(domain()->calculateDomainPoint(event->pos()));
|
|
|
QGraphicsItem::mousePressEvent(event);
|
|
|
}
|
|
|
|
|
|
void SplineChartItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
|
|
|
{
|
|
|
emit XYChart::hovered(domain()->calculateDomainPoint(event->pos()), true);
|
|
|
event->accept();
|
|
|
}
|
|
|
|
|
|
void SplineChartItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
|
|
|
{
|
|
|
emit XYChart::hovered(domain()->calculateDomainPoint(event->pos()), false);
|
|
|
event->accept();
|
|
|
}
|
|
|
|
|
|
#include "moc_splinechartitem_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
