#ifndef _PIC_COUNTER_ITEM_H_
#define _PIC_COUNTER_ITEM_H_

#include "pictextitem.h"
#include <QHash>
#include "ViewModels.h"

class PicCounterItem : public PicTextItem
{
public:
    explicit PicCounterItem(QGraphicsItem *parent = 0, QGraphicsScene *scene = 0, const SourceType type = SourceType::COUNTER);

    void setCounter(COUNTER_TYPE type, int digitalNum, int displayNum);

    COUNTER_TYPE counterType() const { return m_counterType; }

    int digitalNum() const {return m_digitalNum; }

    int charWidth();

    void setCharWidth(int width);

protected:
    /**
     * @brief itemImage 子类可以重新实现该方法用于返回已经渲染好了的但未应用方向、水平拉伸的图像
     * @return
     * @remark
     * 对图元进行方向、水平拉伸的步骤由 @see applyImgeTranslation 实现，因此子类不需要
     */
    virtual QImage itemImage() override;
    
    virtual void setCustomAttrs(const QXmlStreamAttributes& attrs);

    virtual void saveCustomAttrs(QXmlStreamAttributes& attrs);

    virtual void letterSpaceChanged() override;

private:
    COUNTER_TYPE m_counterType;
    int m_digitalNum;
    QImage m_digitalImg;
    QHash<QString, int> m_charWidthMap;
    int m_displayNum = 0;
};  

#endif // _PIC_COUNTER_ITEM_H_