Added candlestick chart type

  - added QCandlestickSeries
  - added QCandlestickSet
  - added QCandlestickLegendMarker
  - added model mappers
  - added Candlestick, CandlestickChartItem, CandlestickData
  - added SeriesTypeCandlestick to SeriesType enum
  - added LegendMarkerTypeCandlestick to LegendMarkerType enum
  - added candlestick chart example
  - added QML candlestick chart example
  - added candlestick tester
  - added autotests
  - added documentation

[ChangeLog][CandlestickChart] Added new chart type:
Candlestick Chart.

Task-number: QTBUG-50544
Change-Id: I17d18dfa23e0ea209bf51ab1e349585b9cb50a8f
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>

1 files changed, 48 insertions, 0 deletions

diff --git a/examples/charts/candlestickchart/candlestickdatareader.h b/examples/charts/candlestickchart/candlestickdatareader.h
new file mode 100644
index 00000000..aaa83bf2
--- /dev/null
+++ b/examples/charts/candlestickchart/candlestickdatareader.h
@@ -0,0 +1,48 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Charts module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 or (at your option) any later version
+** approved by the KDE Free Qt Foundation. The licenses are as published by
+** the Free Software Foundation and appearing in the file LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef CANDLESTICKDATAREADER_H
+#define CANDLESTICKDATAREADER_H
+
+#include <QtCharts/QCandlestickSet>
+#include <QtCore/QTextStream>
+
+QT_CHARTS_USE_NAMESPACE
+
+class CandlestickDataReader : public QTextStream
+{
+public:
+    explicit CandlestickDataReader(QIODevice *device);
+    ~CandlestickDataReader();
+
+    void readFile(QIODevice *device);
+    QCandlestickSet *readCandlestickSet();
+};
+
+#endif // CANDLESTICKDATAREADER_H