variantbardataproxy.h Example File

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#ifndef VARIANTBARDATAPROXY_H #define VARIANTBARDATAPROXY_H #include "qbardataproxy.h" #include "variantdataset.h" #include "variantbardatamapping.h" #include <QtCore/QStringList> #include <QtCore/QMap> #include <QtCore/QPointer> using namespace QtDataVisualization; class VariantBarDataProxy : public QBarDataProxy { Q_OBJECT public: explicit VariantBarDataProxy(); explicit VariantBarDataProxy(VariantDataSet *newSet, VariantBarDataMapping *mapping); virtual ~VariantBarDataProxy(); // Doesn't gain ownership of the dataset, but does connect to it to listen for data changes. void setDataSet(VariantDataSet *newSet); VariantDataSet *dataSet(); // Map key (row, column, value) to value index in data item (VariantItem). // Doesn't gain ownership of mapping, but does connect to it to listen for mapping changes. // Modifying mapping that is set to proxy will trigger dataset re-resolving. void setMapping(VariantBarDataMapping *mapping); VariantBarDataMapping *mapping(); public Q_SLOTS: void handleItemsAdded(int index, int count); void handleDataCleared(); void handleMappingChanged(); private: void resolveDataSet(); QPointer<VariantDataSet> m_dataSet; QPointer<VariantBarDataMapping> m_mapping; Q_DISABLE_COPY(VariantBarDataProxy) }; #endif

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