KChartCartesianAxis.h

/*
 * SPDX-FileCopyrightText: 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved.
 *
 * This file is part of the KD Chart library.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#ifndef KCHARTCARTESIANAXIS_H
#define KCHARTCARTESIANAXIS_H
 
#include <QList>
 
#include "KChartAbstractAxis.h"
 
namespace KChart {
 
    class AbstractCartesianDiagram;
 
    /**
      * The class for cartesian axes.
      *
      * For being useful, axes need to be assigned to a diagram, see
      * AbstractCartesianDiagram::addAxis and AbstractCartesianDiagram::takeAxis.
      *
      * \sa PolarAxis, AbstractCartesianDiagram
      */
    class KCHART_EXPORT CartesianAxis : public AbstractAxis
    {
        Q_OBJECT
 
        Q_DISABLE_COPY( CartesianAxis )
        KCHART_DECLARE_PRIVATE_DERIVED_PARENT( CartesianAxis, AbstractDiagram* )
 
    public:
        enum Position {
            Bottom,
            Top,
            Right,
            Left
        };
        Q_ENUM(Position)
 
        /**
          * C'tor of the class for cartesian axes.
          *
          * \note If you pass a null parent to the constructor, you need to call
          * your diagram's addAxis function to add your axis to the diagram.
          * Otherwise there is no need to call addAxis, since the constructor
          * does it already.
          *
          * \sa AbstractCartesianDiagram::addAxis
          */
        explicit CartesianAxis ( AbstractCartesianDiagram* diagram = nullptr );
        ~CartesianAxis() override;
 
        /**
         * Returns true if both axes have the same settings.
         */
        bool compare( const CartesianAxis* other ) const;
 
        /** reimpl */
        void paint( QPainter* ) override;
        /** reimpl */
        void paintCtx( PaintContext* ) override;
 
        /**
         * Sets the optional text displayed as axis title.
         */
        void setTitleText( const QString& text );
        QString titleText() const;
 
        /**
         * \deprecated
         * Sets the spacing between the title and the diagram.
         * Be aware that setting this value can lead to
         * collisions between axis labels and the title
         */
        void setTitleSpace( qreal value );
        /// \deprecated
        qreal titleSpace() const;
 
        /// \deprecated \brief use setTitleTextAttributes() instead
        void setTitleSize(qreal value);
        /// \deprecated
        qreal titleSize() const;
 
        void setTitleTextAttributes( const TextAttributes &a );
        /**
          * Returns the text attributes that will be used for displaying the
          * title text.
          * This is either the text attributes as specified by setTitleTextAttributes,
          * or (if setTitleTextAttributes() was not called) the default text attributes.
          * \sa resetTitleTextAttributes, hasDefaultTitleTextAttributes
          */
        TextAttributes titleTextAttributes() const;
        /**
          * Reset the title text attributes to the built-in default:
          *
          * Same font and pen as AbstractAxis::textAttributes()
          * and 1.5 times their size.
          */
        void resetTitleTextAttributes();
        bool hasDefaultTitleTextAttributes() const;
 
        virtual void setPosition ( Position p );
#if defined(Q_COMPILER_MANGLES_RETURN_TYPE)
        virtual const Position position () const;
#else
        virtual Position position () const;
#endif
 
        virtual void layoutPlanes();
 
        virtual bool isAbscissa() const;
        virtual bool isOrdinate() const;
 
        /**
         * Sets the axis annotations to \a annotations.
         * Annotations are a QMap of qreals and QStrings defining special
         * markers and their position.
         * If you use annotations, the normal ticks and values will be invisible.
         * To unset the annotations, pass an empty QMap.
         */
        void setAnnotations( const QMap< qreal, QString >& annotations );
        /**
         * Returns the currently set axis annotations.
         */
        QMap< qreal, QString > annotations() const;
 
        /**
         * Sets custom ticks on the axis.
         * Ticks are a QList of qreals defining their special position.
         */
        void setCustomTicks( const QList< qreal >& ticksPostions );
        /**
         * Returns the currently set custom ticks on the axis.
         */
        QList< qreal > customTicks() const;
 
        /**
         * Sets the length of custom ticks on the axis.
         */
        void setCustomTickLength(int value);
        /**
         * Returns the length of custom ticks on the axis.
         */
        int customTickLength() const;
 
        /** pure virtual in QLayoutItem */
        bool isEmpty() const override;
        /** pure virtual in QLayoutItem */
        Qt::Orientations expandingDirections() const override;
        /** pure virtual in QLayoutItem */
        QSize maximumSize() const override;
        /** pure virtual in QLayoutItem */
        QSize minimumSize() const override;
        /** pure virtual in QLayoutItem */
        QSize sizeHint() const override;
        /** pure virtual in QLayoutItem */
        void setGeometry( const QRect& r ) override;
        /** pure virtual in QLayoutItem */
        QRect geometry() const override;
 
        virtual int tickLength( bool subUnitTicks = false ) const;
 
    public Q_SLOTS:
        void setCachedSizeDirty() const;
 
    private Q_SLOTS:
        void slotCoordinateSystemChanged();
    };
 
    typedef QList<CartesianAxis*> CartesianAxisList;
}
 
#if !defined(QT_NO_DEBUG_STREAM)
KCHART_EXPORT QDebug operator<<(QDebug dbg, KChart::CartesianAxis::Position pos);
#endif
 
#endif