File indexing completed on 2024-12-15 04:02:33 

0001 /*
0002  * SPDX-FileCopyrightText: 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved.
0003  *
0004  * This file is part of the KD Chart library.
0005  *
0006  * SPDX-License-Identifier: GPL-2.0-or-later
0007  */
0008 
0009 #ifndef KCHART_STOCK_DIAGRAM_P_H
0010 #define KCHART_STOCK_DIAGRAM_P_H
0011 
0012 #include "KChartStockDiagram.h"
0013 #include "KChartAbstractCartesianDiagram_p.h"
0014 #include "KChartCartesianDiagramDataCompressor_p.h"
0015 #include "KChartPaintContext.h"
0016 
0017 namespace KChart {
0018 
0019 class Q_DECL_HIDDEN StockDiagram::Private : public AbstractCartesianDiagram::Private
0020 {
0021     friend class StockDiagram;
0022 
0023 public:
0024     Private();
0025     Private( const Private& r );
0026     ~Private() override;
0027 
0028     Type type;
0029     StockDiagram* stockDiagram() { return static_cast< StockDiagram* >( diagram ); }
0030 
0031     QBrush upTrendCandlestickBrush;
0032     QBrush downTrendCandlestickBrush;
0033     QPen upTrendCandlestickPen;
0034     QPen downTrendCandlestickPen;
0035 
0036     QMap<int, QBrush> upTrendCandlestickBrushes;
0037     QMap<int, QBrush> downTrendCandlestickBrushes;
0038     QMap<int, QPen> upTrendCandlestickPens;
0039     QMap<int, QPen> downTrendCandlestickPens;
0040 
0041     QPen lowHighLinePen;
0042     QMap<int, QPen> lowHighLinePens;
0043 
0044 
0045     void drawOHLCBar( int dataset, const CartesianDiagramDataCompressor::DataPoint &open,
0046                       const CartesianDiagramDataCompressor::DataPoint &high,
0047                       const CartesianDiagramDataCompressor::DataPoint &low,
0048                       const CartesianDiagramDataCompressor::DataPoint &close,
0049                       PaintContext *context );
0050     void drawHLCBar( int dataset, const CartesianDiagramDataCompressor::DataPoint &high,
0051                      const CartesianDiagramDataCompressor::DataPoint &low,
0052                      const CartesianDiagramDataCompressor::DataPoint &close,
0053                      PaintContext *context );
0054     void drawCandlestick( int dataset, const CartesianDiagramDataCompressor::DataPoint &open,
0055                           const CartesianDiagramDataCompressor::DataPoint &high,
0056                           const CartesianDiagramDataCompressor::DataPoint &low,
0057                           const CartesianDiagramDataCompressor::DataPoint &close,
0058                           PaintContext *context );
0059 
0060 private:
0061     void drawLine( int dataset, int col, const QPointF &point1, const QPointF &p2, PaintContext *context );
0062     QPointF projectPoint( PaintContext *context, const QPointF &point ) const;
0063     QRectF projectCandlestick( PaintContext *context, const QPointF &open, const QPointF &close, qreal width ) const;
0064     int openValueColumn() const;
0065     int highValueColumn() const;
0066     int lowValueColumn() const;
0067     int closeValueColumn() const;
0068 
0069     class ThreeDPainter;
0070 };
0071 
0072 KCHART_IMPL_DERIVED_DIAGRAM( StockDiagram, AbstractCartesianDiagram, CartesianCoordinatePlane )
0073 
0074 }
0075 
0076 #endif // KCHART_STOCK_DIAGRAM_P_H
0077