KChartWidget.h

/*
 * Copyright (C) 2001-2015 Klaralvdalens Datakonsult AB.  All rights reserved.
 *
 * This file is part of the KD Chart library.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#ifndef __KCHARTWIDGET_H__
#define __KCHARTWIDGET_H__

#include "KChartGlobal.h"

#include <QWidget>

#include "KChartEnums.h"
#include "KChartHeaderFooter.h"

QT_BEGIN_NAMESPACE
template <typename T> class QVector;
template <typename T1, typename T2> struct QPair;
QT_END_NAMESPACE

namespace KChart {

    // some forward declarations
    class AbstractDiagram;
    class Chart;
    class AbstractCoordinatePlane;
    class TableModel;
    class BarDiagram;
    class LineDiagram;
    class Plotter;
    class PieDiagram;
    class RingDiagram;
    class PolarDiagram;
    class Legend;
    class Position;

   class KCHART_EXPORT Widget : public QWidget
    {
        Q_OBJECT

        Q_DISABLE_COPY( Widget )
        KCHART_DECLARE_PRIVATE_BASE_POLYMORPHIC_QWIDGET( Widget )

    public:
       explicit Widget( QWidget* parent = nullptr );

       ~Widget();
        void setDataset( int column, const QVector< qreal > & data, const QString& title = QString() );
        void setDataset( int column, const QVector< QPair< qreal, qreal > > &  data, const QString& title = QString() );
        void setDataCell( int row, int column, qreal data );
        void setDataCell( int row, int column, QPair< qreal, qreal > data );
        void resetData();

    public Q_SLOTS:
        void setGlobalLeading( int left, int top, int right, int bottom );
       void setGlobalLeadingLeft( int leading );
       void setGlobalLeadingTop( int leading );
       void setGlobalLeadingRight( int leading );
       void setGlobalLeadingBottom( int leading );

    public:
        int globalLeadingLeft() const;
        int globalLeadingTop() const;
        int globalLeadingRight() const;
        int globalLeadingBottom() const;

        HeaderFooter* firstHeaderFooter();
        QList<HeaderFooter*> allHeadersFooters();

        void addHeaderFooter( const QString& text,
                              HeaderFooter::HeaderFooterType type,
                              Position position );

        void addHeaderFooter( HeaderFooter* header );

        void replaceHeaderFooter( HeaderFooter* header,
                                  HeaderFooter* oldHeader = nullptr );

        void takeHeaderFooter( HeaderFooter* header );

        Legend* legend();
        QList<Legend*> allLegends();

        void addLegend( Position position );
        void addLegend (Legend* legend );

        void replaceLegend( Legend* legend, Legend* oldLegend = nullptr );
        void takeLegend( Legend* legend );


        AbstractDiagram* diagram();

        BarDiagram* barDiagram();
        LineDiagram* lineDiagram();
        Plotter* plotter();
        PieDiagram* pieDiagram();
        RingDiagram* ringDiagram();
        PolarDiagram* polarDiagram();

        AbstractCoordinatePlane* coordinatePlane();


        enum ChartType { NoType, Bar, Line, Plot, Pie, Ring, Polar };

        ChartType type() const;

        enum SubType { Normal, Stacked, Percent, Rows };

        SubType subType() const;

    public Q_SLOTS:
        void setType( ChartType chartType, SubType subType=Normal );
        void setSubType( SubType subType );

    private:
        void justifyModelSize( int rows, int columns );
       bool checkDatasetWidth( int width );
    };
}

#endif // KChartWidget_H