File indexing completed on 2024-12-15 04:02:36 

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 KCHARTTERNARYAXIS_H
0010 #define KCHARTTERNARYAXIS_H
0011 
0012 
0013 #include <KChartAbstractAxis.h>
0014 #include <KChartPosition.h>
0015 #include <KChartTextAttributes.h>
0016 
0017 class PrerenderedLabel;
0018 
0019 namespace KChart {
0020 
0021     class AbstractTernaryDiagram;
0022 
0023     /**
0024       * The class for ternary axes
0025       */
0026     class KCHART_EXPORT TernaryAxis : public AbstractAxis
0027     {
0028         Q_OBJECT
0029 
0030         Q_DISABLE_COPY( TernaryAxis )
0031         KCHART_DECLARE_PRIVATE_DERIVED_PARENT( TernaryAxis, AbstractDiagram* )
0032 
0033     public:
0034         explicit TernaryAxis ( AbstractTernaryDiagram* diagram = nullptr );
0035         ~TernaryAxis() override;
0036 
0037         void  paintAll( QPainter &) override;
0038         void  paint (QPainter *) override;
0039         void  paintCtx (PaintContext *) override;
0040 
0041         QRect  geometry () const override;
0042         void  setGeometry (const QRect &rect) override;
0043 
0044         bool  isEmpty () const override;
0045         QSize  minimumSize () const override;
0046         QSize  maximumSize () const override;
0047         QSize  sizeHint () const override;
0048         Qt::Orientations  expandingDirections () const   override;
0049 
0050         virtual const Position  position () const;
0051         virtual void  setPosition (Position p);
0052 
0053         void setTitleText( const QString& text );
0054         QString titleText() const;
0055         void setTitleTextAttributes( const TextAttributes &a );
0056         TextAttributes titleTextAttributes() const;
0057         void resetTitleTextAttributes();
0058         bool hasDefaultTitleTextAttributes() const;
0059 
0060         QPair<QSizeF, QSizeF> requiredMargins() const;
0061 
0062     private:
0063         void updatePrerenderedLabels();
0064         // TODO, move class variables to private class
0065         QRect m_geometry;
0066         Position m_position;
0067 
0068         QString m_title;
0069         TextAttributes m_titleAttributes;
0070 
0071         // FIXME (Mirko): Move axis labels from grid to here, do not
0072         // expose them, just paint them. Use title text for text. Make
0073         // a function to allow the coordinate plane to calculate the
0074         // necessary margins, like this:
0075         PrerenderedLabel* m_label;
0076         PrerenderedLabel* m_fifty;
0077     };
0078 
0079     typedef QList<TernaryAxis*> TernaryAxisList;
0080 }
0081 
0082 #endif