##// END OF EJS Templates
astyle and manual coding style fixes for src-folder
astyle and manual coding style fixes for src-folder

File last commit:

r2097:db3c1ea5786f
r2097:db3c1ea5786f
Show More
splinechartitem.cpp
171 lines | 4.7 KiB | text/x-c | CppLexer
/****************************************************************************
**
** 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 <QPainter>
#include <QGraphicsSceneMouseEvent>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
SplineChartItem::SplineChartItem(QSplineSeries *series, ChartPresenter *presenter)
: XYChart(series, presenter),
QGraphicsItem(presenter ? presenter->rootItem() : 0),
m_series(series),
m_pointsVisible(false),
m_animation(0)
{
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
{
return 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 XYChart::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();
m_path = splinePath;
m_rect = splinePath.boundingRect();
setPos(origin());
}
//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(clipRect());
painter->setPen(m_linePen);
painter->drawPath(m_path);
if (m_pointsVisible) {
painter->setPen(m_pointPen);
painter->drawPoints(geometryPoints());
}
painter->restore();
}
void SplineChartItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
emit XYChart::clicked(calculateDomainPoint(event->pos()));
QGraphicsItem::mousePressEvent(event);
}
#include "moc_splinechartitem_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE