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Diffstat (limited to 'examples/customproxy/variantbardataproxy.h')
-rw-r--r-- | examples/customproxy/variantbardataproxy.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/examples/customproxy/variantbardataproxy.h b/examples/customproxy/variantbardataproxy.h new file mode 100644 index 00000000..b931aa5c --- /dev/null +++ b/examples/customproxy/variantbardataproxy.h @@ -0,0 +1,64 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc +** All rights reserved. +** For any questions to Digia, please use contact form at http://qt.digia.com +** +** This file is part of the QtDataVisualization module. +** +** Licensees holding valid Qt Enterprise licenses may use this file in +** accordance with the Qt Enterprise License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. +** +** If you have questions regarding the use of this file, please use +** contact form at http://qt.digia.com +** +****************************************************************************/ + +#ifndef VARIANTBARDATAPROXY_H +#define VARIANTBARDATAPROXY_H + +#include "qbardataproxy.h" +#include "variantdataset.h" +#include "variantbardatamapping.h" +#include <QStringList> +#include <QMap> +#include <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 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 |