1 files changed, 155 insertions, 0 deletions
diff --git a/examples/datavisualization/customproxy/rainfallgraph.cpp b/examples/datavisualization/customproxy/rainfallgraph.cpp
new file mode 100644
index 00000000..e2f04923
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+++ b/examples/datavisualization/customproxy/rainfallgraph.cpp
@@ -0,0 +1,155 @@
+/****************************************************************************
+**
+** 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 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 "rainfallgraph.h"
+#include <QtDataVisualization/qcategory3daxis.h>
+#include <QtDataVisualization/qvalue3daxis.h>
+#include <QtDataVisualization/q3dscene.h>
+#include <QtDataVisualization/q3dcamera.h>
+#include <QtDataVisualization/qbar3dseries.h>
+#include <QtDataVisualization/q3dtheme.h>
+#include <QGuiApplication>
+#include <QFont>
+#include <QDebug>
+#include <QTextStream>
+#include <QFile>
+
+using namespace QtDataVisualization;
+
+RainfallGraph::RainfallGraph(Q3DBars *rainfall)
+    : m_graph(rainfall)
+{
+    // In data file the months are in numeric format, so create custom list
+    for (int i = 1; i <= 12; i++)
+        m_numericMonths << QString::number(i);
+
+    m_columnCount = m_numericMonths.size();
+
+    m_proxy = new VariantBarDataProxy;
+    QBar3DSeries *series = new QBar3DSeries(m_proxy);
+    m_graph->addSeries(series);
+
+    updateYearsList(2000, 2012);
+
+    // Set up bar specifications; make the bars as wide as they are deep,
+    // and add a small space between the bars
+    m_graph->setBarThickness(1.0f);
+    m_graph->setBarSpacing(QSizeF(0.2, 0.2));
+
+    // Set axis labels and titles
+    QStringList months;
+    months << "January" << "February" << "March" << "April" << "May" << "June" << "July" << "August" << "September" << "October" << "November" << "December";
+    m_graph->rowAxis()->setTitle("Year");
+    m_graph->columnAxis()->setTitle("Month");
+    m_graph->valueAxis()->setTitle("rainfall");
+    m_graph->valueAxis()->setLabelFormat("%d mm");
+    m_graph->valueAxis()->setSegmentCount(5);
+    m_graph->rowAxis()->setLabels(m_years);
+    m_graph->columnAxis()->setLabels(months);
+
+    // Set bar type to cylinder
+    series->setMesh(QAbstract3DSeries::MeshCylinder);
+
+    // Set shadows to medium
+    m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualityMedium);
+
+    // Set selection mode to bar and column
+    m_graph->setSelectionMode(QAbstract3DGraph::SelectionItemAndColumn | QAbstract3DGraph::SelectionSlice);
+
+    // Set theme
+    m_graph->activeTheme()->setType(Q3DTheme::ThemeArmyBlue);
+
+    // Override font in theme
+    m_graph->activeTheme()->setFont(QFont("Century Gothic", 30));
+
+    // Override label background for theme
+    m_graph->activeTheme()->setLabelBackgroundEnabled(false);
+
+    // Set camera position and zoom
+    m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetIsometricRightHigh);
+
+    // Set window title
+    m_graph->setTitle(QStringLiteral("Monthly rainfall in Northern Finland"));
+}
+
+RainfallGraph::~RainfallGraph()
+{
+    delete m_mapping;
+    delete m_dataSet;
+    delete m_graph;
+}
+
+void RainfallGraph::start()
+{
+    addDataSet();
+}
+
+void RainfallGraph::updateYearsList(int start, int end)
+{
+    m_years.clear();
+    for (int i = start; i <= end; i++)
+        m_years << QString::number(i);
+
+    m_rowCount = m_years.size();
+}
+
+//! [0]
+void RainfallGraph::addDataSet()
+{
+    // Create a new variant data set and data item list
+    m_dataSet =  new VariantDataSet;
+    VariantDataItemList *itemList = new VariantDataItemList;
+
+    // Read data from a data file into the data item list
+    QTextStream stream;
+    QFile dataFile(":/data/raindata.txt");
+    if (dataFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
+        stream.setDevice(&dataFile);
+        while (!stream.atEnd()) {
+            QString line = stream.readLine();
+            if (line.startsWith("#")) // Ignore comments
+                continue;
+            QStringList strList = line.split(",", QString::SkipEmptyParts);
+            // Each line has three data items: Year, month, and rainfall value
+            if (strList.size() < 3) {
+                qWarning() << "Invalid row read from data:" << line;
+                continue;
+            }
+            // Store year and month as strings, and rainfall value as double
+            // into a variant data item and add the item to the item list.
+            VariantDataItem *newItem = new VariantDataItem;
+            for (int i = 0; i < 2; i++)
+                newItem->append(strList.at(i).trimmed());
+            newItem->append(strList.at(2).trimmed().toDouble());
+            itemList->append(newItem);
+        }
+    } else {
+        qWarning() << "Unable to open data file:" << dataFile.fileName();
+    }
+
+    //! [1]
+    // Add items to the data set and set it to the proxy
+    m_dataSet->addItems(itemList);
+    m_proxy->setDataSet(m_dataSet);
+
+    // Create new mapping for the data and set it to the proxy
+    m_mapping =  new VariantBarDataMapping(0, 1, 2, m_years, m_numericMonths);
+    m_proxy->setMapping(m_mapping);
+    //! [1]
+}
+//! [0]