Qt tableView中的代理继承重写paint函数绘制的图片，不会移动

[繁星蓝雨]

这是代码

#ifndef DELETETOOLBUTTONDELEGATE_H
#define DELETETOOLBUTTONDELEGATE_H

#include    <QObject>
#include    <QWidget>
#include    <QItemDelegate>
#include    <QMap>
#include    <QStyleOptionButton>
#include    <QModelIndex>

class DeleteToolButtonDelegate :public QItemDelegate
{
    Q_OBJECT
public:
    DeleteToolButtonDelegate(QObject *parent=0);

//自定义代理组件必须继承以下4个函数
//创建编辑组件
    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option,
                          const QModelIndex &index) const Q_DECL_OVERRIDE;
//从数据模型获得数据，显示到代理组件中
    void setEditorData(QWidget *editor, const QModelIndex &index) const Q_DECL_OVERRIDE;
//将代理组件的数据，保存到数据模型
    void setModelData(QWidget *editor, QAbstractItemModel *model,
                      const QModelIndex &index) const Q_DECL_OVERRIDE;
//更新代理编辑组件的大小
    void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option,
                              const QModelIndex &index) const Q_DECL_OVERRIDE;

    void paint(QPainter *painter, const QStyleOptionViewItem &option,
        const QModelIndex & index ) const Q_DECL_OVERRIDE;
private:
    QMap<QModelIndex, QStyleOptionButton*> m_btns;

signals:
    void deleteCommodityData() const;
};

#endif // DELETETOOLBUTTONDELEGATE_H

void DeleteToolButtonDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{


    QStyleOptionButton* button = m_btns.value(index);

    if (!button) {
        button = new QStyleOptionButton();
       button->rect = option.rect.adjusted(0, 0, 0, 0);
        //button->rect =  QRect(option.rect.left(), option.rect.top(), option.rect.width(), option.rect.height());
        //button->text = "X";
        button->state |= QStyle::State_Enabled;
        button->icon = QIcon(":/Image/sc.png");
        button->iconSize = QSize(option.rect.width(), option.rect.height());

        (const_cast<DeleteToolButtonDelegate*>(this))->m_btns.insert(index, button);
    }
    painter->save();

    if (option.state & QStyle::State_Selected) {//被选中高亮
        painter->fillRect(option.rect, option.palette.highlight());

    }
    painter->restore();
    QApplication::style()->drawControl(QStyle::CE_PushButton, button, painter);
}

[繁星蓝雨]

[繁星蓝雨]

就是删除那个小图标，不会随着滑动拦移动

[繁星蓝雨]

谢谢🙏，各位大佬

[atuexe]

删除的按钮指定父窗口就可以了 button = new QStyleOptionButton(this);

[繁星蓝雨]

首先非常感谢你的回答，但是QStyleOptionButton没有您描述的构造函数