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#ifndef BARCHARTMODEL_H
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#define BARCHARTMODEL_H
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#include <QObject>
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#include "qchartglobal.h"
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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// Model for bar chart. Internal class.
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// TODO: Implement as QAbstractItemModel?
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class QBarSet;
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class QBarCategory;
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class BarChartModel : public QObject //, public QAbstractItemModel
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{
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Q_OBJECT
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public:
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explicit BarChartModel(QBarCategory &category, QObject *parent = 0);
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~BarChartModel();
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// TODO: remove these after add and remove QBarSet works.
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int addData(QList<qreal> data);
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void removeData(int id);
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void addBarSet(QBarSet &set);
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void removeBarSet(QBarSet &set);
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int countRows(); // Number of series in model
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int countColumns(); // Maximum number of items in series
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int countTotalItems(); // Total items in all series. Includes empty items.
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qreal max(); // Maximum value of all series
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qreal min(); // Minimum value of all series
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qreal valueAt(int series, int item);
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qreal columnSum(int column);
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qreal maxColumnSum(); // returns maximum sum of items in all columns.
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signals:
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void modelUpdated();
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public slots:
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private:
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// Little helper class.
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class DataContainer {
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public:
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DataContainer(QList<qreal> data, int id) : mId(id), mData(data) {}
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int countColumns() { return mData.count(); }
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qreal valueAt(int item) { return mData.at(item); }
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int mId; // TODO: Is this needed?
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private:
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QList<qreal> mData;
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};
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// Owned. N series. each has a list of values.
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QList<DataContainer*> mDataModel;
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int mRunningId;
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int mMaxColumns; // longest series in datamodel
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QBarCategory& mCategory;
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};
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QTCOMMERCIALCHART_END_NAMESPACE
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#endif // BARCHARTMODEL_H
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