diff options
author | Tomi Korpipää <tomi.korpipaa@digia.com> | 2013-09-10 11:42:13 +0300 |
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committer | Tomi Korpipää <tomi.korpipaa@digia.com> | 2013-09-10 12:04:24 +0300 |
commit | a28cdb72a4ea768a898ca07f0df0fa3c17c073a8 (patch) | |
tree | 0bafdcfa99fc783e9f5204539a8242bf6128d795 /src/datavisualization/data/baritemmodelhandler.cpp | |
parent | f3e38983d77c72f3121c33a149a58fdf9c64158c (diff) |
Module renamed
Task-number: QTRD-2224
Change-Id: Iec18b6121809300b11d85445281d3c626c434f35
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>
Diffstat (limited to 'src/datavisualization/data/baritemmodelhandler.cpp')
-rw-r--r-- | src/datavisualization/data/baritemmodelhandler.cpp | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/datavisualization/data/baritemmodelhandler.cpp b/src/datavisualization/data/baritemmodelhandler.cpp new file mode 100644 index 00000000..ec922f2b --- /dev/null +++ b/src/datavisualization/data/baritemmodelhandler.cpp @@ -0,0 +1,94 @@ +/**************************************************************************** +** +** 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 QtDataVisualization 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 "baritemmodelhandler_p.h" +#include <QTimer> + +QT_DATAVISUALIZATION_BEGIN_NAMESPACE + +BarItemModelHandler::BarItemModelHandler(QItemModelBarDataProxy *proxy, QObject *parent) + : AbstractItemModelHandler(parent), + m_proxy(proxy) +{ +} + +BarItemModelHandler::~BarItemModelHandler() +{ +} + +// Resolve entire item model into QBarDataArray. +void BarItemModelHandler::resolveModel() +{ + QItemModelBarDataMapping *mapping = static_cast<QItemModelBarDataMapping *>(m_activeMapping); + if (m_itemModel.isNull() || !mapping) { + m_proxy->resetArray(0); + return; + } + + bool useModelRows(false); + if (!mapping->rowCategories().size() || !mapping->columnCategories().size()) { + useModelRows = true; + } else if (mapping->rowRole().isEmpty() || mapping->columnRole().isEmpty()) { + m_proxy->resetArray(0); + return; + } + + QBarDataArray *newProxyArray = new QBarDataArray; + QHash<int, QByteArray> roleHash = m_itemModel->roleNames(); + // Default to display role if no mapping + int valueRole = roleHash.key(mapping->valueRole().toLatin1(), Qt::DisplayRole); + int rowCount = m_itemModel->rowCount(); + int columnCount = m_itemModel->columnCount(); + + if (useModelRows) { + for (int i = 0; i < rowCount; i++) { + QBarDataRow *newProxyRow = new QBarDataRow(columnCount); + for (int j = 0; j < columnCount; j++) + (*newProxyRow)[j].setValue(m_itemModel->index(i, j).data(valueRole).toReal()); + newProxyArray->append(newProxyRow); + } + } else { + int rowRole = roleHash.key(mapping->rowRole().toLatin1()); + int columnRole = roleHash.key(mapping->columnRole().toLatin1()); + const QStringList &rowList = mapping->rowCategories(); + const QStringList &columnList = mapping->columnCategories(); + + // Sort values into rows and columns + typedef QHash<QString, qreal> ColumnValueMap; + QHash <QString, ColumnValueMap> itemValueMap; + for (int i = 0; i < rowCount; i++) { + for (int j = 0; j < columnCount; j++) { + QModelIndex index = m_itemModel->index(i, j); + itemValueMap[index.data(rowRole).toString()][index.data(columnRole).toString()] + = index.data(valueRole).toReal(); + } + } + + // Create new data array from itemValueMap + foreach (QString rowKey, rowList) { + QBarDataRow *newProxyRow = new QBarDataRow(columnList.size()); + for (int i = 0; i < columnList.size(); i++) + (*newProxyRow)[i].setValue(itemValueMap[rowKey][columnList.at(i)]); + newProxyArray->append(newProxyRow); + } + } + + m_proxy->resetArray(newProxyArray); +} + +QT_DATAVISUALIZATION_END_NAMESPACE |