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Diffstat (limited to 'src/datavis3d/data/qitemmodelscatterdataproxy.cpp')
| -rw-r--r-- | src/datavis3d/data/qitemmodelscatterdataproxy.cpp | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/src/datavis3d/data/qitemmodelscatterdataproxy.cpp b/src/datavis3d/data/qitemmodelscatterdataproxy.cpp new file mode 100644 index 00000000..c4f4f0a7 --- /dev/null +++ b/src/datavis3d/data/qitemmodelscatterdataproxy.cpp @@ -0,0 +1,305 @@ +/**************************************************************************** +** +** Copyright (C) 2013 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 QtDataVis3D module. +** +** 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 +** +****************************************************************************/ + +#include "qitemmodelscatterdataproxy_p.h" +#include <QTimer> + +QT_DATAVIS3D_BEGIN_NAMESPACE + +QItemModelScatterDataProxy::QItemModelScatterDataProxy() : + QScatterDataProxy(new QItemModelScatterDataProxyPrivate(this)) +{ +} + +QItemModelScatterDataProxy::QItemModelScatterDataProxy(QAbstractItemModel *itemModel, + QItemModelScatterDataMapping *mapping) : + QScatterDataProxy(new QItemModelScatterDataProxyPrivate(this)) +{ + dptr()->setItemModel(itemModel); + dptr()->setMapping(mapping); +} + +QItemModelScatterDataProxy::~QItemModelScatterDataProxy() +{ +} + +void QItemModelScatterDataProxy::setItemModel(QAbstractItemModel *itemModel) +{ + dptr()->setItemModel(itemModel); +} + +QAbstractItemModel *QItemModelScatterDataProxy::itemModel() +{ + return dptr()->m_itemModel.data(); +} + +void QItemModelScatterDataProxy::setMapping(QItemModelScatterDataMapping *mapping) +{ + dptr()->setMapping(mapping); +} + +QItemModelScatterDataMapping *QItemModelScatterDataProxy::mapping() +{ + return dptr()->m_mapping.data(); +} + +QItemModelScatterDataProxyPrivate *QItemModelScatterDataProxy::dptr() +{ + return static_cast<QItemModelScatterDataProxyPrivate *>(d_ptr.data()); +} + +// QItemModelScatterDataProxyPrivate + +QItemModelScatterDataProxyPrivate::QItemModelScatterDataProxyPrivate(QItemModelScatterDataProxy *q) + : QScatterDataProxyPrivate(q), + resolvePending(0) +{ + m_resolveTimer.setSingleShot(true); + QObject::connect(&m_resolveTimer, &QTimer::timeout, this, + &QItemModelScatterDataProxyPrivate::handlePendingResolve); +} + +QItemModelScatterDataProxyPrivate::~QItemModelScatterDataProxyPrivate() +{ +} + +void QItemModelScatterDataProxyPrivate::setItemModel(QAbstractItemModel *itemModel) +{ + if (!m_itemModel.isNull()) + QObject::disconnect(m_itemModel, 0, this, 0); + + m_itemModel = itemModel; + + if (!m_itemModel.isNull()) { + QObject::connect(m_itemModel, &QAbstractItemModel::columnsInserted, this, + &QItemModelScatterDataProxyPrivate::handleColumnsInserted); + QObject::connect(m_itemModel, &QAbstractItemModel::columnsMoved, this, + &QItemModelScatterDataProxyPrivate::handleColumnsMoved); + QObject::connect(m_itemModel, &QAbstractItemModel::columnsRemoved, this, + &QItemModelScatterDataProxyPrivate::handleColumnsRemoved); + QObject::connect(m_itemModel, &QAbstractItemModel::dataChanged, this, + &QItemModelScatterDataProxyPrivate::handleDataChanged); + QObject::connect(m_itemModel, &QAbstractItemModel::layoutChanged, this, + &QItemModelScatterDataProxyPrivate::handleLayoutChanged); + QObject::connect(m_itemModel, &QAbstractItemModel::modelReset, this, + &QItemModelScatterDataProxyPrivate::handleModelReset); + QObject::connect(m_itemModel, &QAbstractItemModel::rowsInserted, this, + &QItemModelScatterDataProxyPrivate::handleRowsInserted); + QObject::connect(m_itemModel, &QAbstractItemModel::rowsMoved, this, + &QItemModelScatterDataProxyPrivate::handleRowsMoved); + QObject::connect(m_itemModel, &QAbstractItemModel::rowsRemoved, this, + &QItemModelScatterDataProxyPrivate::handleRowsRemoved); + } + if (!m_resolveTimer.isActive()) + m_resolveTimer.start(0); +} + +void QItemModelScatterDataProxyPrivate::setMapping(QItemModelScatterDataMapping *mapping) +{ + if (!m_mapping.isNull()) + QObject::disconnect(m_mapping.data(), &QItemModelScatterDataMapping::mappingChanged, this, + &QItemModelScatterDataProxyPrivate::handleMappingChanged); + + m_mapping = mapping; + + if (!m_mapping.isNull()) + QObject::connect(m_mapping.data(), &QItemModelScatterDataMapping::mappingChanged, this, + &QItemModelScatterDataProxyPrivate::handleMappingChanged); + + if (!m_resolveTimer.isActive()) + m_resolveTimer.start(0); +} + +void QItemModelScatterDataProxyPrivate::handleColumnsInserted(const QModelIndex &parent, + int start, int end) +{ + Q_UNUSED(parent) + Q_UNUSED(start) + Q_UNUSED(end) + + // Resolve new items + if (!m_resolveTimer.isActive()) + m_resolveTimer.start(0); // TODO Resolving entire model is inefficient +} + +void QItemModelScatterDataProxyPrivate::handleColumnsMoved(const QModelIndex &sourceParent, + int sourceStart, int sourceEnd, + const QModelIndex &destinationParent, + int destinationColumn) +{ + Q_UNUSED(sourceParent) + Q_UNUSED(sourceStart) + Q_UNUSED(sourceEnd) + Q_UNUSED(destinationParent) + Q_UNUSED(destinationColumn) + + // Resolve moved items + if (!m_resolveTimer.isActive()) + m_resolveTimer.start(0); // TODO Resolving entire model is inefficient +} + +void QItemModelScatterDataProxyPrivate::handleColumnsRemoved(const QModelIndex &parent, + int start, int end) +{ + Q_UNUSED(parent) + Q_UNUSED(start) + Q_UNUSED(end) + + // Remove old items + if (!m_resolveTimer.isActive()) + m_resolveTimer.start(0); // TODO Resolving entire model is inefficient +} + +void QItemModelScatterDataProxyPrivate::handleDataChanged(const QModelIndex &topLeft, + const QModelIndex &bottomRight, + const QVector<int> &roles) +{ + Q_UNUSED(topLeft) + Q_UNUSED(bottomRight) + Q_UNUSED(roles) + + // Resolve changed items + if (!m_resolveTimer.isActive()) + m_resolveTimer.start(0); // TODO Resolving entire model is inefficient +} + +void QItemModelScatterDataProxyPrivate::handleLayoutChanged( + const QList<QPersistentModelIndex> &parents, + QAbstractItemModel::LayoutChangeHint hint) +{ + Q_UNUSED(parents) + Q_UNUSED(hint) + + // Resolve moved items + if (!m_resolveTimer.isActive()) + m_resolveTimer.start(0); // TODO Resolving entire model is inefficient +} + +void QItemModelScatterDataProxyPrivate::handleModelReset() +{ + // Data cleared, reset array + if (!m_resolveTimer.isActive()) + m_resolveTimer.start(0); // TODO Resolving entire model is inefficient +} + +void QItemModelScatterDataProxyPrivate::handleRowsInserted(const QModelIndex &parent, + int start, int end) +{ + Q_UNUSED(parent) + Q_UNUSED(start) + Q_UNUSED(end) + + // Resolve new items + if (!m_resolveTimer.isActive()) + m_resolveTimer.start(0); // TODO Resolving entire model is inefficient +} + +void QItemModelScatterDataProxyPrivate::handleRowsMoved(const QModelIndex &sourceParent, + int sourceStart, int sourceEnd, + const QModelIndex &destinationParent, + int destinationRow) +{ + Q_UNUSED(sourceParent) + Q_UNUSED(sourceStart) + Q_UNUSED(sourceEnd) + Q_UNUSED(destinationParent) + Q_UNUSED(destinationRow) + + // Resolve moved items + if (!m_resolveTimer.isActive()) + m_resolveTimer.start(0); // TODO Resolving entire model is inefficient +} + +void QItemModelScatterDataProxyPrivate::handleRowsRemoved(const QModelIndex &parent, + int start, int end) +{ + Q_UNUSED(parent) + Q_UNUSED(start) + Q_UNUSED(end) + + // Resolve removed items + if (!m_resolveTimer.isActive()) + m_resolveTimer.start(0); // TODO Resolving entire model is inefficient +} + +void QItemModelScatterDataProxyPrivate::handleMappingChanged() +{ + if (!m_resolveTimer.isActive()) + m_resolveTimer.start(0); +} + +void QItemModelScatterDataProxyPrivate::handlePendingResolve() +{ + resolveModel(); +} + +// Resolve entire item model into QScatterDataArray. +void QItemModelScatterDataProxyPrivate::resolveModel() +{ + if (m_itemModel.isNull() || m_mapping.isNull()) { + qptr()->resetArray(0); + return; + } + + static const int noRoleIndex = -1; + + QHash<int, QByteArray> roleHash = m_itemModel->roleNames(); + //const int labelRole = roleHash.key(m_mapping->labelRole().toLatin1(), noRoleIndex); + const int xPosRole = roleHash.key(m_mapping->xPosRole().toLatin1(), noRoleIndex); + const int yPosRole = roleHash.key(m_mapping->yPosRole().toLatin1(), noRoleIndex); + const int zPosRole = roleHash.key(m_mapping->zPosRole().toLatin1(), noRoleIndex); + // Default valueRole to display role if no mapping + //const int valueRole = roleHash.key(m_mapping->valueRole().toLatin1(), Qt::DisplayRole); + const int columnCount = m_itemModel->columnCount(); + const int rowCount = m_itemModel->rowCount(); + const int totalCount = rowCount * columnCount; + int runningCount = 0; + + // Parse data into newProxyArray + QScatterDataArray *newProxyArray = new QScatterDataArray(totalCount); + for (int i = 0; i < rowCount; i++) { + for (int j = 0; j < columnCount; j++) { + QModelIndex index = m_itemModel->index(i, j); + //if (labelRole != noRoleIndex) + // (*newProxyArray)[runningCount].setLabel(index.data(labelRole).toString()); + float xPos(0.0f); + float yPos(0.0f); + float zPos(0.0f); + if (xPosRole != noRoleIndex) + xPos = index.data(xPosRole).toFloat(); + if (yPosRole != noRoleIndex) + yPos = index.data(yPosRole).toFloat(); + if (zPosRole != noRoleIndex) + zPos = index.data(zPosRole).toFloat(); + (*newProxyArray)[runningCount].setPosition(QVector3D(xPos, yPos, zPos)); + //(*newProxyArray)[runningCount].setValue(index.data(valueRole).toReal()); + runningCount++; + } + } + + qDebug() << __FUNCTION__ << "Total count:" << newProxyArray->size(); + + qptr()->resetArray(newProxyArray); +} + +QItemModelScatterDataProxy *QItemModelScatterDataProxyPrivate::qptr() +{ + return static_cast<QItemModelScatterDataProxy *>(q_ptr); +} + +QT_DATAVIS3D_END_NAMESPACE |