xychart.cpp
189 lines
| 5.4 KiB
| text/x-c
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CppLexer
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r794 | /**************************************************************************** | ||
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r1217 | ** | ||
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r2688 | ** Copyright (C) 2014 Digia Plc | ||
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r1217 | ** All rights reserved. | ||
** For any questions to Digia, please use contact form at http://qt.digia.com | ||||
** | ||||
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r2574 | ** This file is part of the Qt Enterprise Charts Add-on. | ||
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r1217 | ** | ||
** $QT_BEGIN_LICENSE$ | ||||
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r2574 | ** Licensees holding valid Qt Enterprise licenses may use this file in | ||
** accordance with the Qt Enterprise License Agreement provided with the | ||||
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r1217 | ** 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 | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
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r794 | |||
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r1218 | #include "xychart_p.h" | ||
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r466 | #include "qxyseries.h" | ||
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r938 | #include "qxyseries_p.h" | ||
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r466 | #include "chartpresenter_p.h" | ||
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r2275 | #include "abstractdomain_p.h" | ||
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r1735 | #include "qxymodelmapper.h" | ||
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r2483 | #include "qabstractaxis_p.h" | ||
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r466 | #include <QPainter> | ||
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r1055 | #include <QAbstractItemModel> | ||
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r1735 | |||
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r466 | |||
QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
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r2483 | XYChart::XYChart(QXYSeries *series, QGraphicsItem *item): | ||
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r2273 | ChartItem(series->d_func(),item), | ||
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r2097 | m_series(series), | ||
m_animation(0), | ||||
m_dirty(true) | ||||
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r1217 | { | ||
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r1782 | QObject::connect(series, SIGNAL(pointReplaced(int)), this, SLOT(handlePointReplaced(int))); | ||
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r1783 | QObject::connect(series, SIGNAL(pointsReplaced()), this, SLOT(handlePointsReplaced())); | ||
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r1782 | 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))); | ||||
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r2255 | QObject::connect(this, SIGNAL(hovered(QPointF,bool)), series, SIGNAL(hovered(QPointF,bool))); | ||
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r1217 | } | ||
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r2483 | void XYChart::setGeometryPoints(const QVector<QPointF> &points) | ||
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r1217 | { | ||
m_points = points; | ||||
} | ||||
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r2104 | void XYChart::setAnimation(XYAnimation *animation) | ||
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r466 | { | ||
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r2097 | m_animation = animation; | ||
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r466 | } | ||
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r1241 | void XYChart::setDirty(bool dirty) | ||
{ | ||||
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r2097 | m_dirty = dirty; | ||
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r1241 | } | ||
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r2483 | // Returns a vector with same size as geometryPoints vector, indicating | ||
// the off grid status of points. | ||||
QVector<bool> XYChart::offGridStatusVector() | ||||
{ | ||||
qreal minX = domain()->minX(); | ||||
qreal maxX = domain()->maxX(); | ||||
qreal minY = domain()->minY(); | ||||
qreal maxY = domain()->maxY(); | ||||
QVector<bool> returnVector; | ||||
returnVector.resize(m_points.size()); | ||||
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r2492 | // During remove animation series may have different number of points, | ||
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r2489 | // so ensure we don't go over the index. No need to check for zero points, this | ||
// will not be called in such a situation. | ||||
const int seriesLastIndex = m_series->count() - 1; | ||||
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r2483 | |||
for (int i = 0; i < m_points.size(); i++) { | ||||
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r2491 | const QPointF &seriesPoint = m_series->at(qMin(seriesLastIndex, i)); | ||
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r2483 | if (seriesPoint.x() < minX | ||
|| seriesPoint.x() > maxX | ||||
|| seriesPoint.y() < minY | ||||
|| seriesPoint.y() > maxY) { | ||||
returnVector[i] = true; | ||||
} else { | ||||
returnVector[i] = false; | ||||
} | ||||
} | ||||
return returnVector; | ||||
} | ||||
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r2097 | void XYChart::updateChart(QVector<QPointF> &oldPoints, QVector<QPointF> &newPoints, int index) | ||
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r466 | { | ||
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r1271 | |||
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r1217 | if (m_animation) { | ||
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r1271 | m_animation->setup(oldPoints, newPoints, index); | ||
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r1782 | m_points = newPoints; | ||
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r1241 | setDirty(false); | ||
presenter()->startAnimation(m_animation); | ||||
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r2097 | } else { | ||
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r1782 | m_points = newPoints; | ||
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r1217 | updateGeometry(); | ||
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r530 | } | ||
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r466 | } | ||
//handlers | ||||
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r1218 | void XYChart::handlePointAdded(int index) | ||
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r466 | { | ||
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r2097 | Q_ASSERT(index < m_series->count()); | ||
Q_ASSERT(index >= 0); | ||||
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r1217 | |||
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r1241 | QVector<QPointF> points; | ||
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r2427 | if (m_dirty || m_points.isEmpty()) { | ||
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r2273 | points = domain()->calculateGeometryPoints(m_series->points()); | ||
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r2097 | } else { | ||
points = m_points; | ||||
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r2356 | QPointF point = domain()->calculateGeometryPoint(m_series->points()[index], m_validData); | ||
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r2427 | if (!m_validData) | ||
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r2356 | m_points.clear(); | ||
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r2427 | else | ||
points.insert(index, point); | ||||
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r2097 | } | ||
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r1241 | |||
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r2097 | updateChart(m_points, points, index); | ||
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r466 | } | ||
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r1054 | |||
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r1218 | void XYChart::handlePointRemoved(int index) | ||
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r938 | { | ||
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r2097 | Q_ASSERT(index <= m_series->count()); | ||
Q_ASSERT(index >= 0); | ||||
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r1217 | |||
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r2097 | QVector<QPointF> points; | ||
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r1217 | |||
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r2427 | if (m_dirty || m_points.isEmpty()) { | ||
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r2273 | points = domain()->calculateGeometryPoints(m_series->points()); | ||
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r2097 | } else { | ||
points = m_points; | ||||
points.remove(index); | ||||
} | ||||
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r1241 | |||
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r2097 | updateChart(m_points, points, index); | ||
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r466 | } | ||
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r1218 | void XYChart::handlePointReplaced(int index) | ||
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r466 | { | ||
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r2097 | Q_ASSERT(index < m_series->count()); | ||
Q_ASSERT(index >= 0); | ||||
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r1217 | |||
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r2097 | QVector<QPointF> points; | ||
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r1217 | |||
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r2427 | if (m_dirty || m_points.isEmpty()) { | ||
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r2273 | points = domain()->calculateGeometryPoints(m_series->points()); | ||
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r2097 | } else { | ||
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r2356 | QPointF point = domain()->calculateGeometryPoint(m_series->points()[index], m_validData); | ||
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r2427 | if (!m_validData) | ||
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r2356 | m_points.clear(); | ||
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r2097 | points = m_points; | ||
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r2427 | if (m_validData) | ||
points.replace(index, point); | ||||
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r2097 | } | ||
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r1241 | |||
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r2097 | updateChart(m_points, points, index); | ||
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r466 | } | ||
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r1783 | void XYChart::handlePointsReplaced() | ||
{ | ||||
// All the points were replaced -> recalculate | ||||
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r2273 | QVector<QPointF> points = domain()->calculateGeometryPoints(m_series->points()); | ||
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r1783 | updateChart(m_points, points, -1); | ||
} | ||||
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r1698 | void XYChart::handleDomainUpdated() | ||
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r466 | { | ||
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r743 | if (isEmpty()) return; | ||
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r2273 | QVector<QPointF> points = domain()->calculateGeometryPoints(m_series->points()); | ||
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r2097 | updateChart(m_points, points); | ||
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r466 | } | ||
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r1218 | bool XYChart::isEmpty() | ||
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r466 | { | ||
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r2273 | return domain()->isEmpty() || m_series->points().isEmpty(); | ||
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r466 | } | ||
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r1218 | #include "moc_xychart_p.cpp" | ||
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r466 | |||
QTCOMMERCIALCHART_END_NAMESPACE | ||||