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/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "xychart_p.h"
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#include "qxyseries.h"
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#include "qxyseries_p.h"
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#include "chartpresenter_p.h"
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#include "abstractdomain_p.h"
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#include "qxymodelmapper.h"
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#include "qabstractaxis_p.h"
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#include <QPainter>
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#include <QAbstractItemModel>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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//TODO: optimize : remove points which are not visible
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XYChart::XYChart(QXYSeries *series, QGraphicsItem *item):
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ChartItem(series->d_func(),item),
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m_series(series),
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m_animation(0),
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m_dirty(true)
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{
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QObject::connect(series, SIGNAL(pointReplaced(int)), this, SLOT(handlePointReplaced(int)));
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QObject::connect(series, SIGNAL(pointsReplaced()), this, SLOT(handlePointsReplaced()));
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QObject::connect(series, SIGNAL(pointAdded(int)), this, SLOT(handlePointAdded(int)));
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QObject::connect(series, SIGNAL(pointRemoved(int)), this, SLOT(handlePointRemoved(int)));
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QObject::connect(this, SIGNAL(clicked(QPointF)), series, SIGNAL(clicked(QPointF)));
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QObject::connect(this, SIGNAL(hovered(QPointF,bool)), series, SIGNAL(hovered(QPointF,bool)));
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}
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void XYChart::setGeometryPoints(const QVector<QPointF> &points)
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{
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m_points = points;
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}
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void XYChart::setAnimation(XYAnimation *animation)
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{
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m_animation = animation;
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}
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void XYChart::setDirty(bool dirty)
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{
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m_dirty = dirty;
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}
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// Returns a vector with same size as geometryPoints vector, indicating
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// the off grid status of points.
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QVector<bool> XYChart::offGridStatusVector()
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{
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qreal minX = domain()->minX();
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qreal maxX = domain()->maxX();
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qreal minY = domain()->minY();
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qreal maxY = domain()->maxY();
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QVector<bool> returnVector;
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returnVector.resize(m_points.size());
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// During remove/append animation series may have different number of points,
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// so ensure we don't go over the index. No need to check for zero points, this
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// will not be called in such a situation.
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const int seriesLastIndex = m_series->count() - 1;
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for (int i = 0; i < m_points.size(); i++) {
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const QPointF &seriesPoint = m_series->pointAt(qMin(seriesLastIndex, i));
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if (seriesPoint.x() < minX
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|| seriesPoint.x() > maxX
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|| seriesPoint.y() < minY
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|| seriesPoint.y() > maxY) {
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returnVector[i] = true;
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} else {
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returnVector[i] = false;
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}
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}
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return returnVector;
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}
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void XYChart::updateChart(QVector<QPointF> &oldPoints, QVector<QPointF> &newPoints, int index)
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{
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if (m_animation) {
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m_animation->setup(oldPoints, newPoints, index);
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m_points = newPoints;
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setDirty(false);
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presenter()->startAnimation(m_animation);
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} else {
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m_points = newPoints;
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updateGeometry();
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}
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}
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//handlers
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void XYChart::handlePointAdded(int index)
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{
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Q_ASSERT(index < m_series->count());
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Q_ASSERT(index >= 0);
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QVector<QPointF> points;
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if (m_dirty || m_points.isEmpty()) {
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points = domain()->calculateGeometryPoints(m_series->points());
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} else {
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points = m_points;
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QPointF point = domain()->calculateGeometryPoint(m_series->points()[index], m_validData);
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if (!m_validData)
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m_points.clear();
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else
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points.insert(index, point);
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}
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updateChart(m_points, points, index);
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}
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void XYChart::handlePointRemoved(int index)
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{
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Q_ASSERT(index <= m_series->count());
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Q_ASSERT(index >= 0);
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QVector<QPointF> points;
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if (m_dirty || m_points.isEmpty()) {
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points = domain()->calculateGeometryPoints(m_series->points());
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} else {
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points = m_points;
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points.remove(index);
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}
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updateChart(m_points, points, index);
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}
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void XYChart::handlePointReplaced(int index)
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{
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Q_ASSERT(index < m_series->count());
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Q_ASSERT(index >= 0);
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QVector<QPointF> points;
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if (m_dirty || m_points.isEmpty()) {
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points = domain()->calculateGeometryPoints(m_series->points());
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} else {
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QPointF point = domain()->calculateGeometryPoint(m_series->points()[index], m_validData);
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if (!m_validData)
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m_points.clear();
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points = m_points;
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if (m_validData)
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points.replace(index, point);
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}
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updateChart(m_points, points, index);
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}
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void XYChart::handlePointsReplaced()
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{
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// All the points were replaced -> recalculate
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QVector<QPointF> points = domain()->calculateGeometryPoints(m_series->points());
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updateChart(m_points, points, -1);
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}
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void XYChart::handleDomainUpdated()
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{
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if (isEmpty()) return;
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QVector<QPointF> points = domain()->calculateGeometryPoints(m_series->points());
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updateChart(m_points, points);
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}
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bool XYChart::isEmpty()
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{
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return domain()->isEmpty() || m_series->points().isEmpty();
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}
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#include "moc_xychart_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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