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Diffstat (limited to 'src/xychart/qxymodelmapper.cpp')
| -rw-r--r-- | src/xychart/qxymodelmapper.cpp | 533 |
1 files changed, 0 insertions, 533 deletions
diff --git a/src/xychart/qxymodelmapper.cpp b/src/xychart/qxymodelmapper.cpp deleted file mode 100644 index 44cc2370..00000000 --- a/src/xychart/qxymodelmapper.cpp +++ /dev/null @@ -1,533 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2014 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 Enterprise Charts Add-on. -** -** $QT_BEGIN_LICENSE$ -** Licensees holding valid Qt Enterprise licenses may use this file in -** accordance with the Qt Enterprise 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 "qxymodelmapper.h" -#include "qxymodelmapper_p.h" -#include "qxyseries.h" -#include <QAbstractItemModel> -#include <QDateTime> - -QTCOMMERCIALCHART_BEGIN_NAMESPACE - -/*! - Constructs a mapper object which is a child of \a parent. -*/ -QXYModelMapper::QXYModelMapper(QObject *parent) - : QObject(parent), - d_ptr(new QXYModelMapperPrivate(this)) -{ -} - -/*! - \internal -*/ -QAbstractItemModel *QXYModelMapper::model() const -{ - Q_D(const QXYModelMapper); - return d->m_model; -} - -/*! - \internal -*/ -void QXYModelMapper::setModel(QAbstractItemModel *model) -{ - if (model == 0) - return; - - Q_D(QXYModelMapper); - if (d->m_model) - disconnect(d->m_model, 0, d, 0); - - d->m_model = model; - d->initializeXYFromModel(); - // connect signals from the model - connect(d->m_model, SIGNAL(dataChanged(QModelIndex,QModelIndex)), d, SLOT(modelUpdated(QModelIndex,QModelIndex))); - connect(d->m_model, SIGNAL(rowsInserted(QModelIndex,int,int)), d, SLOT(modelRowsAdded(QModelIndex,int,int))); - connect(d->m_model, SIGNAL(rowsRemoved(QModelIndex,int,int)), d, SLOT(modelRowsRemoved(QModelIndex,int,int))); - connect(d->m_model, SIGNAL(columnsInserted(QModelIndex,int,int)), d, SLOT(modelColumnsAdded(QModelIndex,int,int))); - connect(d->m_model, SIGNAL(columnsRemoved(QModelIndex,int,int)), d, SLOT(modelColumnsRemoved(QModelIndex,int,int))); - connect(d->m_model, SIGNAL(destroyed()), d, SLOT(handleModelDestroyed())); -} - -/*! - \internal -*/ -QXYSeries *QXYModelMapper::series() const -{ - Q_D(const QXYModelMapper); - return d->m_series; -} - -/*! - \internal -*/ -void QXYModelMapper::setSeries(QXYSeries *series) -{ - Q_D(QXYModelMapper); - if (d->m_series) - disconnect(d->m_series, 0, d, 0); - - if (series == 0) - return; - - d->m_series = series; - d->initializeXYFromModel(); - // connect the signals from the series - connect(d->m_series, SIGNAL(pointAdded(int)), d, SLOT(handlePointAdded(int))); - connect(d->m_series, SIGNAL(pointRemoved(int)), d, SLOT(handlePointRemoved(int))); - connect(d->m_series, SIGNAL(pointReplaced(int)), d, SLOT(handlePointReplaced(int))); - connect(d->m_series, SIGNAL(destroyed()), d, SLOT(handleSeriesDestroyed())); -} - -/*! - \internal -*/ -int QXYModelMapper::first() const -{ - Q_D(const QXYModelMapper); - return d->m_first; -} - -/*! - \internal -*/ -void QXYModelMapper::setFirst(int first) -{ - Q_D(QXYModelMapper); - d->m_first = qMax(first, 0); - d->initializeXYFromModel(); -} - -/*! - \internal -*/ -int QXYModelMapper::count() const -{ - Q_D(const QXYModelMapper); - return d->m_count; -} - -/*! - \internal -*/ -void QXYModelMapper::setCount(int count) -{ - Q_D(QXYModelMapper); - d->m_count = qMax(count, -1); - d->initializeXYFromModel(); -} - -/*! - Returns the orientation that is used when QXYModelMapper accesses the model. - This mean whether the consecutive x/y values of the QXYSeries are read from rows (Qt::Horizontal) - or from columns (Qt::Vertical) -*/ -Qt::Orientation QXYModelMapper::orientation() const -{ - Q_D(const QXYModelMapper); - return d->m_orientation; -} - -/*! - Returns the \a orientation that is used when QXYModelMapper accesses the model. - This mean whether the consecutive x/y values of the QXYSeries are read from rows (Qt::Horizontal) - or from columns (Qt::Vertical) -*/ -void QXYModelMapper::setOrientation(Qt::Orientation orientation) -{ - Q_D(QXYModelMapper); - d->m_orientation = orientation; - d->initializeXYFromModel(); -} - -/*! - Returns which section of the model is kept in sync with the x values of the QXYSeries -*/ -int QXYModelMapper::xSection() const -{ - Q_D(const QXYModelMapper); - return d->m_xSection; -} - -/*! - Sets the model section that is kept in sync with the x values of the QXYSeries. - Parameter \a xSection specifies the section of the model. -*/ -void QXYModelMapper::setXSection(int xSection) -{ - Q_D(QXYModelMapper); - d->m_xSection = qMax(-1, xSection); - d->initializeXYFromModel(); -} - -/*! - Returns which section of the model is kept in sync with the y values of the QXYSeries -*/ -int QXYModelMapper::ySection() const -{ - Q_D(const QXYModelMapper); - return d->m_ySection; -} - -/*! - Sets the model section that is kept in sync with the y values of the QXYSeries. - Parameter \a ySection specifies the section of the model. -*/ -void QXYModelMapper::setYSection(int ySection) -{ - Q_D(QXYModelMapper); - d->m_ySection = qMax(-1, ySection); - d->initializeXYFromModel(); -} - -/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// - -QXYModelMapperPrivate::QXYModelMapperPrivate(QXYModelMapper *q) : - QObject(q), - m_series(0), - m_model(0), - m_first(0), - m_count(-1), - m_orientation(Qt::Vertical), - m_xSection(-1), - m_ySection(-1), - m_seriesSignalsBlock(false), - m_modelSignalsBlock(false), - q_ptr(q) -{ -} - -void QXYModelMapperPrivate::blockModelSignals(bool block) -{ - m_modelSignalsBlock = block; -} - -void QXYModelMapperPrivate::blockSeriesSignals(bool block) -{ - m_seriesSignalsBlock = block; -} - -QModelIndex QXYModelMapperPrivate::xModelIndex(int xPos) -{ - if (m_count != -1 && xPos >= m_count) - return QModelIndex(); // invalid - - if (m_orientation == Qt::Vertical) - return m_model->index(xPos + m_first, m_xSection); - else - return m_model->index(m_xSection, xPos + m_first); -} - -QModelIndex QXYModelMapperPrivate::yModelIndex(int yPos) -{ - if (m_count != -1 && yPos >= m_count) - return QModelIndex(); // invalid - - if (m_orientation == Qt::Vertical) - return m_model->index(yPos + m_first, m_ySection); - else - return m_model->index(m_ySection, yPos + m_first); -} - -qreal QXYModelMapperPrivate::valueFromModel(QModelIndex index) -{ - QVariant value = m_model->data(index, Qt::DisplayRole); - switch (value.type()) { - case QVariant::DateTime: - return value.toDateTime().toMSecsSinceEpoch(); - case QVariant::Date: - return QDateTime(value.toDate()).toMSecsSinceEpoch(); - default: - return value.toReal(); - } -} - -void QXYModelMapperPrivate::setValueToModel(QModelIndex index, qreal value) -{ - QVariant oldValue = m_model->data(index, Qt::DisplayRole); - switch (oldValue.type()) { - case QVariant::DateTime: - m_model->setData(index, QDateTime::fromMSecsSinceEpoch(value)); - break; - case QVariant::Date: - m_model->setData(index, QDateTime::fromMSecsSinceEpoch(value).date()); - break; - default: - m_model->setData(index, value); - } -} - -void QXYModelMapperPrivate::handlePointAdded(int pointPos) -{ - if (m_seriesSignalsBlock) - return; - - if (m_count != -1) - m_count += 1; - - blockModelSignals(); - if (m_orientation == Qt::Vertical) - m_model->insertRows(pointPos + m_first, 1); - else - m_model->insertColumns(pointPos + m_first, 1); - - setValueToModel(xModelIndex(pointPos), m_series->points().at(pointPos).x()); - setValueToModel(yModelIndex(pointPos), m_series->points().at(pointPos).y()); - blockModelSignals(false); -} - -void QXYModelMapperPrivate::handlePointRemoved(int pointPos) -{ - if (m_seriesSignalsBlock) - return; - - if (m_count != -1) - m_count -= 1; - - blockModelSignals(); - if (m_orientation == Qt::Vertical) - m_model->removeRow(pointPos + m_first); - else - m_model->removeColumn(pointPos + m_first); - blockModelSignals(false); -} - -void QXYModelMapperPrivate::handlePointReplaced(int pointPos) -{ - if (m_seriesSignalsBlock) - return; - - blockModelSignals(); - setValueToModel(xModelIndex(pointPos), m_series->points().at(pointPos).x()); - setValueToModel(yModelIndex(pointPos), m_series->points().at(pointPos).y()); - blockModelSignals(false); -} - -void QXYModelMapperPrivate::handleSeriesDestroyed() -{ - m_series = 0; -} - -void QXYModelMapperPrivate::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight) -{ - if (m_model == 0 || m_series == 0) - return; - - if (m_modelSignalsBlock) - return; - - blockSeriesSignals(); - QModelIndex index; - QPointF oldPoint; - QPointF newPoint; - for (int row = topLeft.row(); row <= bottomRight.row(); row++) { - for (int column = topLeft.column(); column <= bottomRight.column(); column++) { - index = topLeft.sibling(row, column); - if (m_orientation == Qt::Vertical && (index.column() == m_xSection || index.column() == m_ySection)) { - if (index.row() >= m_first && (m_count == - 1 || index.row() < m_first + m_count)) { - QModelIndex xIndex = xModelIndex(index.row() - m_first); - QModelIndex yIndex = yModelIndex(index.row() - m_first); - if (xIndex.isValid() && yIndex.isValid()) { - oldPoint = m_series->points().at(index.row() - m_first); - newPoint.setX(valueFromModel(xIndex)); - newPoint.setY(valueFromModel(yIndex)); - } - } - } else if (m_orientation == Qt::Horizontal && (index.row() == m_xSection || index.row() == m_ySection)) { - if (index.column() >= m_first && (m_count == - 1 || index.column() < m_first + m_count)) { - QModelIndex xIndex = xModelIndex(index.column() - m_first); - QModelIndex yIndex = yModelIndex(index.column() - m_first); - if (xIndex.isValid() && yIndex.isValid()) { - oldPoint = m_series->points().at(index.column() - m_first); - newPoint.setX(valueFromModel(xIndex)); - newPoint.setY(valueFromModel(yIndex)); - } - } - } else { - continue; - } - m_series->replace(oldPoint, newPoint); - } - } - blockSeriesSignals(false); -} - -void QXYModelMapperPrivate::modelRowsAdded(QModelIndex parent, int start, int end) -{ - Q_UNUSED(parent); - if (m_modelSignalsBlock) - return; - - blockSeriesSignals(); - if (m_orientation == Qt::Vertical) - insertData(start, end); - else if (start <= m_xSection || start <= m_ySection) // if the changes affect the map - reinitialize the xy - initializeXYFromModel(); - blockSeriesSignals(false); -} - -void QXYModelMapperPrivate::modelRowsRemoved(QModelIndex parent, int start, int end) -{ - Q_UNUSED(parent); - if (m_modelSignalsBlock) - return; - - blockSeriesSignals(); - if (m_orientation == Qt::Vertical) - removeData(start, end); - else if (start <= m_xSection || start <= m_ySection) // if the changes affect the map - reinitialize the xy - initializeXYFromModel(); - blockSeriesSignals(false); -} - -void QXYModelMapperPrivate::modelColumnsAdded(QModelIndex parent, int start, int end) -{ - Q_UNUSED(parent); - if (m_modelSignalsBlock) - return; - - blockSeriesSignals(); - if (m_orientation == Qt::Horizontal) - insertData(start, end); - else if (start <= m_xSection || start <= m_ySection) // if the changes affect the map - reinitialize the xy - initializeXYFromModel(); - blockSeriesSignals(false); -} - -void QXYModelMapperPrivate::modelColumnsRemoved(QModelIndex parent, int start, int end) -{ - Q_UNUSED(parent); - if (m_modelSignalsBlock) - return; - - blockSeriesSignals(); - if (m_orientation == Qt::Horizontal) - removeData(start, end); - else if (start <= m_xSection || start <= m_ySection) // if the changes affect the map - reinitialize the xy - initializeXYFromModel(); - blockSeriesSignals(false); -} - -void QXYModelMapperPrivate::handleModelDestroyed() -{ - m_model = 0; -} - -void QXYModelMapperPrivate::insertData(int start, int end) -{ - if (m_model == 0 || m_series == 0) - return; - - if (m_count != -1 && start >= m_first + m_count) { - return; - } else { - int addedCount = end - start + 1; - if (m_count != -1 && addedCount > m_count) - addedCount = m_count; - int first = qMax(start, m_first); - int last = qMin(first + addedCount - 1, m_orientation == Qt::Vertical ? m_model->rowCount() - 1 : m_model->columnCount() - 1); - for (int i = first; i <= last; i++) { - QPointF point; - QModelIndex xIndex = xModelIndex(i - m_first); - QModelIndex yIndex = yModelIndex(i - m_first); - if (xIndex.isValid() && yIndex.isValid()) { - point.setX(valueFromModel(xIndex)); - point.setY(valueFromModel(yIndex)); - m_series->insert(i - m_first, point); - } - } - - // remove excess of points (above m_count) - if (m_count != -1 && m_series->points().size() > m_count) - for (int i = m_series->points().size() - 1; i >= m_count; i--) { - m_series->remove(m_series->points().at(i)); - } - } -} - -void QXYModelMapperPrivate::removeData(int start, int end) -{ - if (m_model == 0 || m_series == 0) - return; - - int removedCount = end - start + 1; - if (m_count != -1 && start >= m_first + m_count) { - return; - } else { - int toRemove = qMin(m_series->count(), removedCount); // first find how many items can actually be removed - int first = qMax(start, m_first); // get the index of the first item that will be removed. - int last = qMin(first + toRemove - 1, m_series->count() + m_first - 1); // get the index of the last item that will be removed. - for (int i = last; i >= first; i--) { - m_series->remove(m_series->points().at(i - m_first)); - } - - if (m_count != -1) { - int itemsAvailable; // check how many are available to be added - if (m_orientation == Qt::Vertical) - itemsAvailable = m_model->rowCount() - m_first - m_series->count(); - else - itemsAvailable = m_model->columnCount() - m_first - m_series->count(); - int toBeAdded = qMin(itemsAvailable, m_count - m_series->count()); // add not more items than there is space left to be filled. - int currentSize = m_series->count(); - if (toBeAdded > 0) - for (int i = m_series->count(); i < currentSize + toBeAdded; i++) { - QPointF point; - QModelIndex xIndex = xModelIndex(i); - QModelIndex yIndex = yModelIndex(i); - if (xIndex.isValid() && yIndex.isValid()) { - point.setX(valueFromModel(xIndex)); - point.setY(valueFromModel(yIndex)); - m_series->insert(i, point); - } - } - } - } -} - -void QXYModelMapperPrivate::initializeXYFromModel() -{ - if (m_model == 0 || m_series == 0) - return; - - blockSeriesSignals(); - // clear current content - m_series->clear(); - - // create the initial points set - int pointPos = 0; - QModelIndex xIndex = xModelIndex(pointPos); - QModelIndex yIndex = yModelIndex(pointPos); - while (xIndex.isValid() && yIndex.isValid()) { - QPointF point; - point.setX(valueFromModel(xIndex)); - point.setY(valueFromModel(yIndex)); - m_series->append(point); - pointPos++; - xIndex = xModelIndex(pointPos); - yIndex = yModelIndex(pointPos); - } - blockSeriesSignals(false); -} - -#include "moc_qxymodelmapper.cpp" -#include "moc_qxymodelmapper_p.cpp" - -QTCOMMERCIALCHART_END_NAMESPACE |