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Diffstat (limited to 'src/piechart/qpiemodelmapper.cpp')
| -rw-r--r-- | src/piechart/qpiemodelmapper.cpp | 568 |
1 files changed, 0 insertions, 568 deletions
diff --git a/src/piechart/qpiemodelmapper.cpp b/src/piechart/qpiemodelmapper.cpp deleted file mode 100644 index dc68ca97..00000000 --- a/src/piechart/qpiemodelmapper.cpp +++ /dev/null @@ -1,568 +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 "qpiemodelmapper.h" -#include "qpiemodelmapper_p.h" -#include "qpieseries.h" -#include "qpieslice.h" -#include <QAbstractItemModel> - -QTCOMMERCIALCHART_BEGIN_NAMESPACE - -QPieModelMapper::QPieModelMapper(QObject *parent) - : QObject(parent), - d_ptr(new QPieModelMapperPrivate(this)) -{ -} - -QAbstractItemModel *QPieModelMapper::model() const -{ - Q_D(const QPieModelMapper); - return d->m_model; -} - -void QPieModelMapper::setModel(QAbstractItemModel *model) -{ - if (model == 0) - return; - - Q_D(QPieModelMapper); - if (d->m_model) { - disconnect(d->m_model, 0, d, 0); - } - - d->m_model = model; - d->initializePieFromModel(); - // 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())); -} - -QPieSeries *QPieModelMapper::series() const -{ - Q_D(const QPieModelMapper); - return d->m_series; -} - -void QPieModelMapper::setSeries(QPieSeries *series) -{ - Q_D(QPieModelMapper); - if (d->m_series) { - disconnect(d->m_series, 0, d, 0); - } - - if (series == 0) - return; - - d->m_series = series; - d->initializePieFromModel(); - // connect the signals from the series - connect(d->m_series, SIGNAL(added(QList<QPieSlice*>)), d, SLOT(slicesAdded(QList<QPieSlice*>))); - connect(d->m_series, SIGNAL(removed(QList<QPieSlice*>)), d, SLOT(slicesRemoved(QList<QPieSlice*>))); - connect(d->m_series, SIGNAL(destroyed()), d, SLOT(handleSeriesDestroyed())); -} - -/*! - Defines which row/column of the model contains the first slice value. - Minimal and default value is: 0 -*/ -int QPieModelMapper::first() const -{ - Q_D(const QPieModelMapper); - return d->m_first; -} - -/*! - Sets which row/column of the model contains the \a first slice value. - Minimal and default value is: 0 -*/ -void QPieModelMapper::setFirst(int first) -{ - Q_D(QPieModelMapper); - d->m_first = qMax(first, 0); - d->initializePieFromModel(); -} - -/*! - Defines the number of rows/columns of the model that are mapped as the data for QPieSeries - Minimal and default value is: -1 (count limited by the number of rows/columns in the model) -*/ -int QPieModelMapper::count() const -{ - Q_D(const QPieModelMapper); - return d->m_count; -} - -/*! - Defines the \a count of rows/columns of the model that are mapped as the data for QPieSeries - Minimal and default value is: -1 (count limited by the number of rows/columns in the model) -*/ -void QPieModelMapper::setCount(int count) -{ - Q_D(QPieModelMapper); - d->m_count = qMax(count, -1); - d->initializePieFromModel(); -} - -/*! - Returns the orientation that is used when QPieModelMapper accesses the model. - This mean whether the consecutive values/labels of the pie are read from row (Qt::Horizontal) - or from columns (Qt::Vertical) -*/ -Qt::Orientation QPieModelMapper::orientation() const -{ - Q_D(const QPieModelMapper); - return d->m_orientation; -} - -/*! - Returns the \a orientation that is used when QPieModelMapper accesses the model. - This mean whether the consecutive values/labels of the pie are read from row (Qt::Horizontal) - or from columns (Qt::Vertical) -*/ -void QPieModelMapper::setOrientation(Qt::Orientation orientation) -{ - Q_D(QPieModelMapper); - d->m_orientation = orientation; - d->initializePieFromModel(); -} - -/*! - Returns which section of the model is kept in sync with the values of the pie's slices -*/ -int QPieModelMapper::valuesSection() const -{ - Q_D(const QPieModelMapper); - return d->m_valuesSection; -} - -/*! - Sets the model section that is kept in sync with the pie slices values. - Parameter \a valuesSection specifies the section of the model. -*/ -void QPieModelMapper::setValuesSection(int valuesSection) -{ - Q_D(QPieModelMapper); - d->m_valuesSection = qMax(-1, valuesSection); - d->initializePieFromModel(); -} - -/*! - Returns which section of the model is kept in sync with the labels of the pie's slices -*/ -int QPieModelMapper::labelsSection() const -{ - Q_D(const QPieModelMapper); - return d->m_labelsSection; -} - -/*! - Sets the model section that is kept in sync with the pie slices labels. - Parameter \a labelsSection specifies the section of the model. -*/ -void QPieModelMapper::setLabelsSection(int labelsSection) -{ - Q_D(QPieModelMapper); - d->m_labelsSection = qMax(-1, labelsSection); - d->initializePieFromModel(); -} - -/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// - -QPieModelMapperPrivate::QPieModelMapperPrivate(QPieModelMapper *q) : - QObject(q), - m_series(0), - m_model(0), - m_first(0), - m_count(-1), - m_orientation(Qt::Vertical), - m_valuesSection(-1), - m_labelsSection(-1), - m_seriesSignalsBlock(false), - m_modelSignalsBlock(false), - q_ptr(q) -{ -} - -void QPieModelMapperPrivate::blockModelSignals(bool block) -{ - m_modelSignalsBlock = block; -} - -void QPieModelMapperPrivate::blockSeriesSignals(bool block) -{ - m_seriesSignalsBlock = block; -} - - -QPieSlice *QPieModelMapperPrivate::pieSlice(QModelIndex index) const -{ - if (!index.isValid()) - return 0; // index is invalid - - if (m_orientation == Qt::Vertical && (index.column() == m_valuesSection || index.column() == m_labelsSection)) { - if (index.row() >= m_first && (m_count == - 1 || index.row() < m_first + m_count)) { - if (m_model->index(index.row(), m_valuesSection).isValid() && m_model->index(index.row(), m_labelsSection).isValid()) - return m_series->slices().at(index.row() - m_first); - else - return 0; - } - } else if (m_orientation == Qt::Horizontal && (index.row() == m_valuesSection || index.row() == m_labelsSection)) { - if (index.column() >= m_first && (m_count == - 1 || index.column() < m_first + m_count)) { - if (m_model->index(m_valuesSection, index.column()).isValid() && m_model->index(m_labelsSection, index.column()).isValid()) - return m_series->slices().at(index.column() - m_first); - else - return 0; - } - } - return 0; // This part of model has not been mapped to any slice -} - -QModelIndex QPieModelMapperPrivate::valueModelIndex(int slicePos) -{ - if (m_count != -1 && slicePos >= m_count) - return QModelIndex(); // invalid - - if (m_orientation == Qt::Vertical) - return m_model->index(slicePos + m_first, m_valuesSection); - else - return m_model->index(m_valuesSection, slicePos + m_first); -} - -QModelIndex QPieModelMapperPrivate::labelModelIndex(int slicePos) -{ - if (m_count != -1 && slicePos >= m_count) - return QModelIndex(); // invalid - - if (m_orientation == Qt::Vertical) - return m_model->index(slicePos + m_first, m_labelsSection); - else - return m_model->index(m_labelsSection, slicePos + m_first); -} - -bool QPieModelMapperPrivate::isLabelIndex(QModelIndex index) const -{ - if (m_orientation == Qt::Vertical && index.column() == m_labelsSection) - return true; - else if (m_orientation == Qt::Horizontal && index.row() == m_labelsSection) - return true; - - return false; -} - -bool QPieModelMapperPrivate::isValueIndex(QModelIndex index) const -{ - if (m_orientation == Qt::Vertical && index.column() == m_valuesSection) - return true; - else if (m_orientation == Qt::Horizontal && index.row() == m_valuesSection) - return true; - - return false; -} - -void QPieModelMapperPrivate::slicesAdded(QList<QPieSlice *> slices) -{ - if (m_seriesSignalsBlock) - return; - - if (slices.count() == 0) - return; - - int firstIndex = m_series->slices().indexOf(slices.at(0)); - if (firstIndex == -1) - return; - - if (m_count != -1) - m_count += slices.count(); - - for (int i = firstIndex; i < firstIndex + slices.count(); i++) { - m_slices.insert(i, slices.at(i - firstIndex)); - connect(slices.at(i - firstIndex), SIGNAL(labelChanged()), this, SLOT(sliceLabelChanged())); - connect(slices.at(i - firstIndex), SIGNAL(valueChanged()), this, SLOT(sliceValueChanged())); - } - - blockModelSignals(); - if (m_orientation == Qt::Vertical) - m_model->insertRows(firstIndex + m_first, slices.count()); - else - m_model->insertColumns(firstIndex + m_first, slices.count()); - - for (int i = firstIndex; i < firstIndex + slices.count(); i++) { - m_model->setData(valueModelIndex(i), slices.at(i - firstIndex)->value()); - m_model->setData(labelModelIndex(i), slices.at(i - firstIndex)->label()); - } - blockModelSignals(false); -} - -void QPieModelMapperPrivate::slicesRemoved(QList<QPieSlice *> slices) -{ - if (m_seriesSignalsBlock) - return; - - if (slices.count() == 0) - return; - - int firstIndex = m_slices.indexOf(slices.at(0)); - if (firstIndex == -1) - return; - - if (m_count != -1) - m_count -= slices.count(); - - for (int i = firstIndex + slices.count() - 1; i >= firstIndex; i--) - m_slices.removeAt(i); - - blockModelSignals(); - if (m_orientation == Qt::Vertical) - m_model->removeRows(firstIndex + m_first, slices.count()); - else - m_model->removeColumns(firstIndex + m_first, slices.count()); - blockModelSignals(false); -} - -void QPieModelMapperPrivate::sliceLabelChanged() -{ - if (m_seriesSignalsBlock) - return; - - blockModelSignals(); - QPieSlice *slice = qobject_cast<QPieSlice *>(QObject::sender()); - m_model->setData(labelModelIndex(m_series->slices().indexOf(slice)), slice->label()); - blockModelSignals(false); -} - -void QPieModelMapperPrivate::sliceValueChanged() -{ - if (m_seriesSignalsBlock) - return; - - blockModelSignals(); - QPieSlice *slice = qobject_cast<QPieSlice *>(QObject::sender()); - m_model->setData(valueModelIndex(m_series->slices().indexOf(slice)), slice->value()); - blockModelSignals(false); -} - -void QPieModelMapperPrivate::handleSeriesDestroyed() -{ - m_series = 0; -} - -void QPieModelMapperPrivate::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight) -{ - if (m_model == 0 || m_series == 0) - return; - - if (m_modelSignalsBlock) - return; - - blockSeriesSignals(); - QModelIndex index; - QPieSlice *slice; - for (int row = topLeft.row(); row <= bottomRight.row(); row++) { - for (int column = topLeft.column(); column <= bottomRight.column(); column++) { - index = topLeft.sibling(row, column); - slice = pieSlice(index); - if (slice) { - if (isValueIndex(index)) - slice->setValue(m_model->data(index, Qt::DisplayRole).toReal()); - if (isLabelIndex(index)) - slice->setLabel(m_model->data(index, Qt::DisplayRole).toString()); - } - } - } - blockSeriesSignals(false); -} - - -void QPieModelMapperPrivate::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_valuesSection || start <= m_labelsSection) // if the changes affect the map - reinitialize the pie - initializePieFromModel(); - blockSeriesSignals(false); -} - -void QPieModelMapperPrivate::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_valuesSection || start <= m_labelsSection) // if the changes affect the map - reinitialize the pie - initializePieFromModel(); - blockSeriesSignals(false); -} - -void QPieModelMapperPrivate::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_valuesSection || start <= m_labelsSection) // if the changes affect the map - reinitialize the pie - initializePieFromModel(); - blockSeriesSignals(false); -} - -void QPieModelMapperPrivate::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_valuesSection || start <= m_labelsSection) // if the changes affect the map - reinitialize the pie - initializePieFromModel(); - blockSeriesSignals(false); -} - -void QPieModelMapperPrivate::handleModelDestroyed() -{ - m_model = 0; -} - -void QPieModelMapperPrivate::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++) { - QModelIndex valueIndex = valueModelIndex(i - m_first); - QModelIndex labelIndex = labelModelIndex(i - m_first); - if (valueIndex.isValid() && labelIndex.isValid()) { - QPieSlice *slice = new QPieSlice; - slice->setValue(m_model->data(valueIndex, Qt::DisplayRole).toDouble()); - slice->setLabel(m_model->data(labelIndex, Qt::DisplayRole).toString()); - connect(slice, SIGNAL(labelChanged()), this, SLOT(sliceLabelChanged())); - connect(slice, SIGNAL(valueChanged()), this, SLOT(sliceValueChanged())); - m_series->insert(i - m_first, slice); - m_slices.insert(i - m_first, slice); - } - } - - // remove excess of slices (abouve m_count) - if (m_count != -1 && m_series->slices().size() > m_count) - for (int i = m_series->slices().size() - 1; i >= m_count; i--) { - m_series->remove(m_series->slices().at(i)); - m_slices.removeAt(i); - } - } -} - -void QPieModelMapperPrivate::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->slices().size(), 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->slices().size() + 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->slices().at(i - m_first)); - m_slices.removeAt(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->slices().size(); - else - itemsAvailable = m_model->columnCount() - m_first - m_series->slices().size(); - int toBeAdded = qMin(itemsAvailable, m_count - m_series->slices().size()); // add not more items than there is space left to be filled. - int currentSize = m_series->slices().size(); - if (toBeAdded > 0) - for (int i = m_series->slices().size(); i < currentSize + toBeAdded; i++) { - QModelIndex valueIndex = valueModelIndex(i - m_first); - QModelIndex labelIndex = labelModelIndex(i - m_first); - if (valueIndex.isValid() && labelIndex.isValid()) { - QPieSlice *slice = new QPieSlice; - slice->setValue(m_model->data(valueIndex, Qt::DisplayRole).toDouble()); - slice->setLabel(m_model->data(labelIndex, Qt::DisplayRole).toString()); - m_series->insert(i, slice); - m_slices.insert(i, slice); - } - } - } - } -} - -void QPieModelMapperPrivate::initializePieFromModel() -{ - if (m_model == 0 || m_series == 0) - return; - - blockSeriesSignals(); - // clear current content - m_series->clear(); - m_slices.clear(); - - // create the initial slices set - int slicePos = 0; - QModelIndex valueIndex = valueModelIndex(slicePos); - QModelIndex labelIndex = labelModelIndex(slicePos); - while (valueIndex.isValid() && labelIndex.isValid()) { - QPieSlice *slice = new QPieSlice; - slice->setLabel(m_model->data(labelIndex, Qt::DisplayRole).toString()); - slice->setValue(m_model->data(valueIndex, Qt::DisplayRole).toDouble()); - connect(slice, SIGNAL(labelChanged()), this, SLOT(sliceLabelChanged())); - connect(slice, SIGNAL(valueChanged()), this, SLOT(sliceValueChanged())); - m_series->append(slice); - m_slices.append(slice); - slicePos++; - valueIndex = valueModelIndex(slicePos); - labelIndex = labelModelIndex(slicePos); - } - blockSeriesSignals(false); -} - -#include "moc_qpiemodelmapper_p.cpp" -#include "moc_qpiemodelmapper.cpp" - -QTCOMMERCIALCHART_END_NAMESPACE |