Qt 5.9 | Qt Data Visualization | Custom Proxy Example | variantbardatamapping.h Example File

Qt 5.9.9 Reference Documentation

# variantbardatamapping.h Example File

customproxy/variantbardatamapping.h

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      ** Contact: https://www.qt.io/licensing/
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      #ifndef VARIANTBARDATAMAPPING_H
      #define VARIANTBARDATAMAPPING_H

      #include <QtCore/QObject>
      #include <QtCore/QStringList>

      class VariantBarDataMapping : public QObject
      {
          Q_OBJECT
          Q_PROPERTY(int rowIndex READ rowIndex WRITE setRowIndex)
          Q_PROPERTY(int columnIndex READ columnIndex WRITE setColumnIndex)
          Q_PROPERTY(int valueIndex READ valueIndex WRITE setValueIndex)
          Q_PROPERTY(QStringList rowCategories READ rowCategories WRITE setRowCategories)
          Q_PROPERTY(QStringList columnCategories READ columnCategories WRITE setColumnCategories)
      public:
          explicit VariantBarDataMapping();
          VariantBarDataMapping(const VariantBarDataMapping &other);
          VariantBarDataMapping(int rowIndex, int columnIndex, int valueIndex,
                                 const QStringList &rowCategories,
                                 const QStringList &columnCategories);
          virtual ~VariantBarDataMapping();

          VariantBarDataMapping &operator=(const VariantBarDataMapping &other);

          void setRowIndex(int index);
          int rowIndex() const;
          void setColumnIndex(int index);
          int columnIndex() const;
          void setValueIndex(int index);
          int valueIndex() const;

          void setRowCategories(const QStringList &categories);
          const QStringList &rowCategories() const;
          void setColumnCategories(const QStringList &categories);
          const QStringList &columnCategories() const;

          void remap(int rowIndex, int columnIndex, int valueIndex,
                     const QStringList &rowCategories,
                     const QStringList &columnCategories);
      Q_SIGNALS:
          void mappingChanged();

      private:
          // Indexes of the mapped items in the VariantDataItem
          int m_rowIndex;
          int m_columnIndex;
          int m_valueIndex;

          // For row/column items, sort items into these categories. Other categories are ignored.
          QStringList m_rowCategories;
          QStringList m_columnCategories;
      };

      #endif