External/common/combox/searchcombobox.h

#ifndef SEARCHCOMBOBOX_H
#define SEARCHCOMBOBOX_H

#include <QComboBox>
#include <QMouseEvent>



/**
 * @brief 1、使用此类绘制下拉框阴影需要在样式表中设置QAbstractItemView {margin: LISTVIEW_MARGIN;}
 *          否则阴影会被遮挡
 *        2、调用函数setViewShadowEffect()设置下拉框阴影，将下拉框阴影从构造函数中独立出去，单独设置，防止手动加载QSS时阴影不生效
 */


class SearchComboBox : public QComboBox
{
    Q_OBJECT
public:
    typedef struct ItemData
    {
        QString text;
        QVariant userdata;
        QString alphbat;
    }ItemData;

public:
    explicit SearchComboBox(QWidget *parent = nullptr);
    ~SearchComboBox();

    //重写下拉框弹出位置
    void showPopup() override;
    void hidePopup() override;

    /* 设置下拉框阴影 */
    void setViewShadowEffect();

    void clear();
    void addItem(const QString &text, const QVariant &userData = QVariant());

    void autoquery();

protected:
    bool event(QEvent *event) override;
    void wheelEvent(QWheelEvent *e) override;

private slots:
    void OnCurrentIndexChanged(const QString &text);

private:
    const int LISTVIEW_MARGIN = 12; // QAbstractItemView边距(阴影宽度)

    QList<ItemData> m_items;
    bool m_autoquery;
    bool m_showPopup;
    QString m_currentText;
};

#endif // SEARCHCOMBOBOX_H