qboxplotmodelmapper.cpp
489 lines
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| text/x-c
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CppLexer
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r2548 | /**************************************************************************** | ||
** | ||||
|
r2688 | ** Copyright (C) 2014 Digia Plc | ||
|
r2548 | ** All rights reserved. | ||
** For any questions to Digia, please use contact form at http://qt.digia.com | ||||
** | ||||
|
r2574 | ** This file is part of the Qt Enterprise Charts Add-on. | ||
|
r2548 | ** | ||
** $QT_BEGIN_LICENSE$ | ||||
|
r2574 | ** Licensees holding valid Qt Enterprise licenses may use this file in | ||
** accordance with the Qt Enterprise License Agreement provided with the | ||||
|
r2548 | ** 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 "qboxplotmodelmapper.h" | ||||
#include "qboxplotmodelmapper_p.h" | ||||
#include "qboxplotseries.h" | ||||
#include "qboxset.h" | ||||
#include "qchart.h" | ||||
#include <QAbstractItemModel> | ||||
QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
QBoxPlotModelMapper::QBoxPlotModelMapper(QObject *parent) : | ||||
QObject(parent), | ||||
d_ptr(new QBoxPlotModelMapperPrivate(this)) | ||||
{ | ||||
} | ||||
QAbstractItemModel *QBoxPlotModelMapper::model() const | ||||
{ | ||||
Q_D(const QBoxPlotModelMapper); | ||||
return d->m_model; | ||||
} | ||||
void QBoxPlotModelMapper::setModel(QAbstractItemModel *model) | ||||
{ | ||||
if (model == 0) | ||||
return; | ||||
Q_D(QBoxPlotModelMapper); | ||||
if (d->m_model) | ||||
disconnect(d->m_model, 0, d, 0); | ||||
d->m_model = model; | ||||
d->initializeBoxFromModel(); | ||||
// connect signals from the model | ||||
connect(d->m_model, SIGNAL(dataChanged(QModelIndex,QModelIndex)), d, SLOT(modelUpdated(QModelIndex,QModelIndex))); | ||||
connect(d->m_model, SIGNAL(headerDataChanged(Qt::Orientation,int,int)), d, SLOT(modelHeaderDataUpdated(Qt::Orientation,int,int))); | ||||
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())); | ||||
} | ||||
QBoxPlotSeries *QBoxPlotModelMapper::series() const | ||||
{ | ||||
Q_D(const QBoxPlotModelMapper); | ||||
return d->m_series; | ||||
} | ||||
void QBoxPlotModelMapper::setSeries(QBoxPlotSeries *series) | ||||
{ | ||||
Q_D(QBoxPlotModelMapper); | ||||
if (d->m_series) | ||||
disconnect(d->m_series, 0, d, 0); | ||||
if (series == 0) | ||||
return; | ||||
d->m_series = series; | ||||
d->initializeBoxFromModel(); | ||||
// connect the signals from the series | ||||
connect(d->m_series, SIGNAL(boxsetsAdded(QList<QBoxSet *>)), d, SLOT(boxSetsAdded(QList<QBoxSet *>))); | ||||
connect(d->m_series, SIGNAL(boxsetsRemoved(QList<QBoxSet *>)), d, SLOT(boxSetsRemoved(QList<QBoxSet *>))); | ||||
connect(d->m_series, SIGNAL(destroyed()), d, SLOT(handleSeriesDestroyed())); | ||||
} | ||||
/*! | ||||
Returns which row/column of the model contains the first values of the QBoxSets in the series. | ||||
The default value is 0. | ||||
*/ | ||||
int QBoxPlotModelMapper::first() const | ||||
{ | ||||
Q_D(const QBoxPlotModelMapper); | ||||
return d->m_first; | ||||
} | ||||
/*! | ||||
Sets which row/column of the model contains the \a first values of the QBoxSets in the series. | ||||
The default value is 0. | ||||
*/ | ||||
void QBoxPlotModelMapper::setFirst(int first) | ||||
{ | ||||
Q_D(QBoxPlotModelMapper); | ||||
d->m_first = qMax(first, 0); | ||||
d->initializeBoxFromModel(); | ||||
} | ||||
/*! | ||||
Returns the number of rows/columns of the model that are mapped as the data for QBoxPlotSeries | ||||
Minimal and default value is: -1 (count limited by the number of rows/columns in the model) | ||||
*/ | ||||
int QBoxPlotModelMapper::count() const | ||||
{ | ||||
Q_D(const QBoxPlotModelMapper); | ||||
return d->m_count; | ||||
} | ||||
/*! | ||||
Sets the \a count of rows/columns of the model that are mapped as the data for QBoxPlotSeries | ||||
Minimal and default value is: -1 (count limited by the number of rows/columns in the model) | ||||
*/ | ||||
void QBoxPlotModelMapper::setCount(int count) | ||||
{ | ||||
Q_D(QBoxPlotModelMapper); | ||||
d->m_count = qMax(count, -1); | ||||
d->initializeBoxFromModel(); | ||||
} | ||||
/*! | ||||
Returns the orientation that is used when QBoxPlotModelMapper accesses the model. | ||||
This means whether the consecutive values of the box-and-whiskers set are read from row (Qt::Horizontal) | ||||
or from columns (Qt::Vertical) | ||||
*/ | ||||
Qt::Orientation QBoxPlotModelMapper::orientation() const | ||||
{ | ||||
Q_D(const QBoxPlotModelMapper); | ||||
return d->m_orientation; | ||||
} | ||||
/*! | ||||
Returns the \a orientation that is used when QBoxPlotModelMapper accesses the model. | ||||
This mean whether the consecutive values of the box-and-whiskers set are read from row (Qt::Horizontal) | ||||
or from columns (Qt::Vertical) | ||||
*/ | ||||
void QBoxPlotModelMapper::setOrientation(Qt::Orientation orientation) | ||||
{ | ||||
Q_D(QBoxPlotModelMapper); | ||||
d->m_orientation = orientation; | ||||
d->initializeBoxFromModel(); | ||||
} | ||||
/*! | ||||
Returns which section of the model is used as the data source for the first box set | ||||
*/ | ||||
int QBoxPlotModelMapper::firstBoxSetSection() const | ||||
{ | ||||
Q_D(const QBoxPlotModelMapper); | ||||
return d->m_firstBoxSetSection; | ||||
} | ||||
/*! | ||||
Sets the model section that is used as the data source for the first box set | ||||
Parameter \a firstBoxSetSection specifies the section of the model. | ||||
*/ | ||||
void QBoxPlotModelMapper::setFirstBoxSetSection(int firstBoxSetSection) | ||||
{ | ||||
Q_D(QBoxPlotModelMapper); | ||||
d->m_firstBoxSetSection = qMax(-1, firstBoxSetSection); | ||||
d->initializeBoxFromModel(); | ||||
} | ||||
/*! | ||||
Returns which section of the model is used as the data source for the last box set | ||||
*/ | ||||
int QBoxPlotModelMapper::lastBoxSetSection() const | ||||
{ | ||||
Q_D(const QBoxPlotModelMapper); | ||||
return d->m_lastBoxSetSection; | ||||
} | ||||
/*! | ||||
Sets the model section that is used as the data source for the last box set | ||||
Parameter \a lastBoxSetSection specifies the section of the model. | ||||
*/ | ||||
void QBoxPlotModelMapper::setLastBoxSetSection(int lastBoxSetSection) | ||||
{ | ||||
Q_D(QBoxPlotModelMapper); | ||||
d->m_lastBoxSetSection = qMax(-1, lastBoxSetSection); | ||||
d->initializeBoxFromModel(); | ||||
} | ||||
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | ||||
QBoxPlotModelMapperPrivate::QBoxPlotModelMapperPrivate(QBoxPlotModelMapper *q) : | ||||
QObject(q), | ||||
m_series(0), | ||||
m_model(0), | ||||
m_first(0), | ||||
m_count(-1), | ||||
m_orientation(Qt::Vertical), | ||||
m_firstBoxSetSection(-1), | ||||
m_lastBoxSetSection(-1), | ||||
m_seriesSignalsBlock(false), | ||||
m_modelSignalsBlock(false), | ||||
q_ptr(q) | ||||
{ | ||||
} | ||||
void QBoxPlotModelMapperPrivate::blockModelSignals(bool block) | ||||
{ | ||||
m_modelSignalsBlock = block; | ||||
} | ||||
void QBoxPlotModelMapperPrivate::blockSeriesSignals(bool block) | ||||
{ | ||||
m_seriesSignalsBlock = block; | ||||
} | ||||
QBoxSet *QBoxPlotModelMapperPrivate::boxSet(QModelIndex index) | ||||
{ | ||||
if (!index.isValid()) | ||||
return 0; | ||||
if (m_orientation == Qt::Vertical && index.column() >= m_firstBoxSetSection && index.column() <= m_lastBoxSetSection) { | ||||
if (index.row() >= m_first && (m_count == - 1 || index.row() < m_first + m_count)) | ||||
return m_series->boxSets().at(index.column() - m_firstBoxSetSection); | ||||
} else if (m_orientation == Qt::Horizontal && index.row() >= m_firstBoxSetSection && index.row() <= m_lastBoxSetSection) { | ||||
if (index.column() >= m_first && (m_count == - 1 || index.column() < m_first + m_count)) | ||||
return m_series->boxSets().at(index.row() - m_firstBoxSetSection); | ||||
} | ||||
return 0; // This part of model has not been mapped to any boxset | ||||
} | ||||
QModelIndex QBoxPlotModelMapperPrivate::boxModelIndex(int boxSection, int posInBar) | ||||
{ | ||||
if (m_count != -1 && posInBar >= m_count) | ||||
return QModelIndex(); // invalid | ||||
if (boxSection < m_firstBoxSetSection || boxSection > m_lastBoxSetSection) | ||||
return QModelIndex(); // invalid | ||||
if (m_orientation == Qt::Vertical) | ||||
return m_model->index(posInBar + m_first, boxSection); | ||||
else | ||||
return m_model->index(boxSection, posInBar + m_first); | ||||
} | ||||
void QBoxPlotModelMapperPrivate::handleSeriesDestroyed() | ||||
{ | ||||
m_series = 0; | ||||
} | ||||
void QBoxPlotModelMapperPrivate::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight) | ||||
{ | ||||
Q_UNUSED(topLeft) | ||||
Q_UNUSED(bottomRight) | ||||
if (m_model == 0 || m_series == 0) | ||||
return; | ||||
if (m_modelSignalsBlock) | ||||
return; | ||||
blockSeriesSignals(); | ||||
QModelIndex index; | ||||
for (int row = topLeft.row(); row <= bottomRight.row(); row++) { | ||||
for (int column = topLeft.column(); column <= bottomRight.column(); column++) { | ||||
index = topLeft.sibling(row, column); | ||||
QBoxSet *box = boxSet(index); | ||||
if (box) { | ||||
if (m_orientation == Qt::Vertical) | ||||
box->setValue(row - m_first, m_model->data(index).toReal()); | ||||
else | ||||
box->setValue(column - m_first, m_model->data(index).toReal()); | ||||
} | ||||
} | ||||
} | ||||
blockSeriesSignals(false); | ||||
} | ||||
void QBoxPlotModelMapperPrivate::modelHeaderDataUpdated(Qt::Orientation orientation, int first, int last) | ||||
{ | ||||
Q_UNUSED(orientation); | ||||
Q_UNUSED(first); | ||||
Q_UNUSED(last); | ||||
} | ||||
void QBoxPlotModelMapperPrivate::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_firstBoxSetSection || start <= m_lastBoxSetSection) // if the changes affect the map - reinitialize | ||||
initializeBoxFromModel(); | ||||
blockSeriesSignals(false); | ||||
} | ||||
void QBoxPlotModelMapperPrivate::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_firstBoxSetSection || start <= m_lastBoxSetSection) // if the changes affect the map - reinitialize | ||||
initializeBoxFromModel(); | ||||
blockSeriesSignals(false); | ||||
} | ||||
void QBoxPlotModelMapperPrivate::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_firstBoxSetSection || start <= m_lastBoxSetSection) // if the changes affect the map - reinitialize | ||||
initializeBoxFromModel(); | ||||
blockSeriesSignals(false); | ||||
} | ||||
void QBoxPlotModelMapperPrivate::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_firstBoxSetSection || start <= m_lastBoxSetSection) // if the changes affect the map - reinitialize | ||||
initializeBoxFromModel(); | ||||
blockSeriesSignals(false); | ||||
} | ||||
void QBoxPlotModelMapperPrivate::handleModelDestroyed() | ||||
{ | ||||
m_model = 0; | ||||
} | ||||
void QBoxPlotModelMapperPrivate::insertData(int start, int end) | ||||
{ | ||||
Q_UNUSED(end) | ||||
Q_UNUSED(start) | ||||
Q_UNUSED(end) | ||||
// Currently boxplotchart needs to be fully recalculated when change is made. | ||||
// Re-initialize | ||||
initializeBoxFromModel(); | ||||
} | ||||
void QBoxPlotModelMapperPrivate::removeData(int start, int end) | ||||
{ | ||||
Q_UNUSED(end) | ||||
Q_UNUSED(start) | ||||
Q_UNUSED(end) | ||||
// Currently boxplotchart needs to be fully recalculated when change is made. | ||||
// Re-initialize | ||||
initializeBoxFromModel(); | ||||
} | ||||
void QBoxPlotModelMapperPrivate::boxSetsAdded(QList<QBoxSet *> sets) | ||||
{ | ||||
if (m_seriesSignalsBlock) | ||||
return; | ||||
if (sets.count() == 0) | ||||
return; | ||||
int firstIndex = m_series->boxSets().indexOf(sets.at(0)); | ||||
if (firstIndex == -1) | ||||
return; | ||||
int maxCount = 0; | ||||
for (int i = 0; i < sets.count(); i++) { | ||||
if (sets.at(i)->count() > m_count) | ||||
maxCount = sets.at(i)->count(); | ||||
} | ||||
if (m_count != -1 && m_count < maxCount) | ||||
m_count = maxCount; | ||||
m_lastBoxSetSection += sets.count(); | ||||
blockModelSignals(); | ||||
int modelCapacity = m_orientation == Qt::Vertical ? m_model->rowCount() - m_first : m_model->columnCount() - m_first; | ||||
if (maxCount > modelCapacity) { | ||||
if (m_orientation == Qt::Vertical) | ||||
m_model->insertRows(m_model->rowCount(), maxCount - modelCapacity); | ||||
else | ||||
m_model->insertColumns(m_model->columnCount(), maxCount - modelCapacity); | ||||
} | ||||
if (m_orientation == Qt::Vertical) | ||||
m_model->insertColumns(firstIndex + m_firstBoxSetSection, sets.count()); | ||||
else | ||||
m_model->insertRows(firstIndex + m_firstBoxSetSection, sets.count()); | ||||
for (int i = firstIndex + m_firstBoxSetSection; i < firstIndex + m_firstBoxSetSection + sets.count(); i++) { | ||||
for (int j = 0; j < sets.at(i - firstIndex - m_firstBoxSetSection)->count(); j++) | ||||
m_model->setData(boxModelIndex(i, j), sets.at(i - firstIndex - m_firstBoxSetSection)->at(j)); | ||||
} | ||||
blockModelSignals(false); | ||||
initializeBoxFromModel(); | ||||
} | ||||
void QBoxPlotModelMapperPrivate::boxSetsRemoved(QList<QBoxSet *> sets) | ||||
{ | ||||
if (m_seriesSignalsBlock) | ||||
return; | ||||
if (sets.count() == 0) | ||||
return; | ||||
int firstIndex = m_boxSets.indexOf(sets.at(0)); | ||||
if (firstIndex == -1) | ||||
return; | ||||
m_lastBoxSetSection -= sets.count(); | ||||
for (int i = firstIndex + sets.count() - 1; i >= firstIndex; i--) | ||||
m_boxSets.removeAt(i); | ||||
blockModelSignals(); | ||||
if (m_orientation == Qt::Vertical) | ||||
m_model->removeColumns(firstIndex + m_firstBoxSetSection, sets.count()); | ||||
else | ||||
m_model->removeRows(firstIndex + m_firstBoxSetSection, sets.count()); | ||||
blockModelSignals(false); | ||||
initializeBoxFromModel(); | ||||
} | ||||
void QBoxPlotModelMapperPrivate::boxValueChanged(int index) | ||||
{ | ||||
if (m_seriesSignalsBlock) | ||||
return; | ||||
int boxSetIndex = m_boxSets.indexOf(qobject_cast<QBoxSet *>(QObject::sender())); | ||||
blockModelSignals(); | ||||
m_model->setData(boxModelIndex(boxSetIndex + m_firstBoxSetSection, index), m_boxSets.at(boxSetIndex)->at(index)); | ||||
blockModelSignals(false); | ||||
initializeBoxFromModel(); | ||||
} | ||||
void QBoxPlotModelMapperPrivate::initializeBoxFromModel() | ||||
{ | ||||
if (m_model == 0 || m_series == 0) | ||||
return; | ||||
blockSeriesSignals(); | ||||
// clear current content | ||||
m_series->clear(); | ||||
m_boxSets.clear(); | ||||
// create the initial box-and-whiskers sets | ||||
for (int i = m_firstBoxSetSection; i <= m_lastBoxSetSection; i++) { | ||||
int posInBar = 0; | ||||
QModelIndex boxIndex = boxModelIndex(i, posInBar); | ||||
// check if there is such model index | ||||
if (boxIndex.isValid()) { | ||||
QBoxSet *boxSet = new QBoxSet(); | ||||
while (boxIndex.isValid()) { | ||||
boxSet->append(m_model->data(boxIndex, Qt::DisplayRole).toDouble()); | ||||
posInBar++; | ||||
boxIndex = boxModelIndex(i, posInBar); | ||||
} | ||||
connect(boxSet, SIGNAL(valueChanged(int)), this, SLOT(boxValueChanged(int))); | ||||
m_series->append(boxSet); | ||||
m_boxSets.append(boxSet); | ||||
} else { | ||||
break; | ||||
} | ||||
} | ||||
blockSeriesSignals(false); | ||||
} | ||||
#include "moc_qboxplotmodelmapper.cpp" | ||||
#include "moc_qboxplotmodelmapper_p.cpp" | ||||
QTCOMMERCIALCHART_END_NAMESPACE | ||||