30 lines
802 B
C
30 lines
802 B
C
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#ifndef ICONCOLUMNDELEGATE_H
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#define ICONCOLUMNDELEGATE_H
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#include <QStyledItemDelegate>
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#include <map>
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/** This class asumes that the string values supplies for the column data
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* can be Resolved by QIcon to an actual icon. Icons are cached and reused.
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*
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*/
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class IconColumnDelegate: public QStyledItemDelegate {
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public:
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IconColumnDelegate(QWidget *parent = nullptr);
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~IconColumnDelegate();
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void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
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QSize sizeHint(const QStyleOptionViewItem &option,
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const QModelIndex &index) const override;
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void clearCache();
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private:
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using t_IconCache = std::map<QString, QIcon*>;
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mutable t_IconCache m_Icons;
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QIcon* getIcon(const QString &name) const;
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};
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#endif // ICONCOLUMNDELEGATE_H
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