From a28cdb72a4ea768a898ca07f0df0fa3c17c073a8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomi=20Korpip=C3=A4=C3=A4?= <tomi.korpipaa@digia.com>
Date: Tue, 10 Sep 2013 11:42:13 +0300
Subject: Module renamed

Task-number: QTRD-2224

Change-Id: Iec18b6121809300b11d85445281d3c626c434f35
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>
---
 .../data/surfaceitemmodelhandler.cpp               | 94 ++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 src/datavisualization/data/surfaceitemmodelhandler.cpp

(limited to 'src/datavisualization/data/surfaceitemmodelhandler.cpp')

diff --git a/src/datavisualization/data/surfaceitemmodelhandler.cpp b/src/datavisualization/data/surfaceitemmodelhandler.cpp
new file mode 100644
index 00000000..911e2995
--- /dev/null
+++ b/src/datavisualization/data/surfaceitemmodelhandler.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 "surfaceitemmodelhandler_p.h"
+#include <QTimer>
+
+QT_DATAVISUALIZATION_BEGIN_NAMESPACE
+
+SurfaceItemModelHandler::SurfaceItemModelHandler(QItemModelSurfaceDataProxy *proxy, QObject *parent)
+    : AbstractItemModelHandler(parent),
+      m_proxy(proxy)
+{
+}
+
+SurfaceItemModelHandler::~SurfaceItemModelHandler()
+{
+}
+
+// Resolve entire item model into QSurfaceDataArray.
+void SurfaceItemModelHandler::resolveModel()
+{
+    QItemModelSurfaceDataMapping *mapping = static_cast<QItemModelSurfaceDataMapping *>(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;
+    }
+
+    QSurfaceDataArray *newProxyArray = new QSurfaceDataArray;
+    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++) {
+            QSurfaceDataRow *newProxyRow = new QSurfaceDataRow(columnCount);
+            for (int j = 0; j < columnCount; j++)
+                (*newProxyRow)[j] = 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) {
+            QSurfaceDataRow *newProxyRow = new QSurfaceDataRow(columnList.size());
+            for (int i = 0; i < columnList.size(); i++)
+                (*newProxyRow)[i] = itemValueMap[rowKey][columnList.at(i)];
+            newProxyArray->append(newProxyRow);
+        }
+    }
+
+    m_proxy->resetArray(newProxyArray);
+}
+
+QT_DATAVISUALIZATION_END_NAMESPACE
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