DAStandardItemPlot.h

#ifndef DASTANDARDITEMPLOT_H
#define DASTANDARDITEMPLOT_H
#include "DAFigureAPI.h"
#include <QStandardItem>
#include <QPointer>
class QwtPlot;
namespace DA
{
class DAFIGURE_API DAStandardItemPlot : public QStandardItem
{
public:
    enum
    {
        Type = QStandardItem::UserType + 1  // 任意 >= UserType 的值
    };
    enum ItemType
    {
        PlotText,     
        PlotVisible,  
        PlotProperty  
    };
    explicit DAStandardItemPlot(QwtPlot* plot, ItemType plotType);
    ~DAStandardItemPlot();
    QVariant data(int role = Qt::UserRole + 1) const override;
    QVariant handleItemTextType(int role) const;
    QVariant handleItemVisibleType(int role) const;
    QVariant handleScalePropertyType(int role) const;
    int type() const override
    {
        return Type;
    }
    // 获取关联的PlotItem
    QwtPlot* plot() const
    {
        return m_plot;
    }
 
    // 获取Item类型
    ItemType itemType() const
    {
        return m_itemType;
    }
 
    bool isValid() const
    {
        return (m_plot != nullptr);
    }
 
private:
    QwtPlot* m_plot { nullptr };
    ItemType m_itemType { PlotText };
};
}  // end DA
#endif  // DASTANDARDITEMPLOT_H