##// END OF EJS Templates
Fixed: datetimeaxis not redrawing when datetime format changed
Fixed: datetimeaxis not redrawing when datetime format changed

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r2275:95c64613f4b2
r2326:96f0cba4f31e
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xychart.cpp
154 lines | 4.2 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 "xychart_p.h"
#include "qxyseries.h"
#include "qxyseries_p.h"
#include "chartpresenter_p.h"
#include "abstractdomain_p.h"
#include "qxymodelmapper.h"
#include <QPainter>
#include <QAbstractItemModel>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
//TODO: optimize : remove points which are not visible
XYChart::XYChart(QXYSeries *series,QGraphicsItem* item):
ChartItem(series->d_func(),item),
m_series(series),
m_animation(0),
m_dirty(true)
{
QObject::connect(series, SIGNAL(pointReplaced(int)), this, SLOT(handlePointReplaced(int)));
QObject::connect(series, SIGNAL(pointsReplaced()), this, SLOT(handlePointsReplaced()));
QObject::connect(series, SIGNAL(pointAdded(int)), this, SLOT(handlePointAdded(int)));
QObject::connect(series, SIGNAL(pointRemoved(int)), this, SLOT(handlePointRemoved(int)));
QObject::connect(this, SIGNAL(clicked(QPointF)), series, SIGNAL(clicked(QPointF)));
QObject::connect(this, SIGNAL(hovered(QPointF,bool)), series, SIGNAL(hovered(QPointF,bool)));
}
void XYChart::setGeometryPoints(const QVector<QPointF>& points)
{
m_points = points;
}
void XYChart::setAnimation(XYAnimation *animation)
{
m_animation = animation;
}
void XYChart::setDirty(bool dirty)
{
m_dirty = dirty;
}
void XYChart::updateChart(QVector<QPointF> &oldPoints, QVector<QPointF> &newPoints, int index)
{
if (m_animation) {
m_animation->setup(oldPoints, newPoints, index);
m_points = newPoints;
setDirty(false);
presenter()->startAnimation(m_animation);
} else {
m_points = newPoints;
updateGeometry();
}
}
//handlers
void XYChart::handlePointAdded(int index)
{
Q_ASSERT(index < m_series->count());
Q_ASSERT(index >= 0);
QVector<QPointF> points;
if (m_dirty) {
points = domain()->calculateGeometryPoints(m_series->points());
} else {
points = m_points;
QPointF point = domain()->calculateGeometryPoint(m_series->points()[index]);
points.insert(index, point);
}
updateChart(m_points, points, index);
}
void XYChart::handlePointRemoved(int index)
{
Q_ASSERT(index <= m_series->count());
Q_ASSERT(index >= 0);
QVector<QPointF> points;
if (m_dirty) {
points = domain()->calculateGeometryPoints(m_series->points());
} else {
points = m_points;
points.remove(index);
}
updateChart(m_points, points, index);
}
void XYChart::handlePointReplaced(int index)
{
Q_ASSERT(index < m_series->count());
Q_ASSERT(index >= 0);
QVector<QPointF> points;
if (m_dirty) {
points = domain()->calculateGeometryPoints(m_series->points());
} else {
QPointF point = domain()->calculateGeometryPoint(m_series->points()[index]);
points = m_points;
points.replace(index, point);
}
updateChart(m_points, points, index);
}
void XYChart::handlePointsReplaced()
{
// All the points were replaced -> recalculate
QVector<QPointF> points = domain()->calculateGeometryPoints(m_series->points());
updateChart(m_points, points, -1);
}
void XYChart::handleDomainUpdated()
{
if (isEmpty()) return;
QVector<QPointF> points = domain()->calculateGeometryPoints(m_series->points());
updateChart(m_points, points);
}
bool XYChart::isEmpty()
{
return domain()->isEmpty() || m_series->points().isEmpty();
}
#include "moc_xychart_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE