Qt学习——类之间通过信号与槽建立通信

来源：互联网发布：电视软件破解论坛编辑：程序博客网时间：2024/05/16 19:49

/* class drugNameBasicInfo */

connect(ui->okBtn,SIGNAL(clicked()),this,SLOT(okDrugNameInfoBtn()));

void drugNameBasicInfo::okDrugNameInfoBtn()

    int row = ui->drugNameBaseInfoView->currentIndex().row();

    QSqlRecord record = drugTableModel->record(row);

    QString drug_name = record.value("pt_desc").toString();

    //qDebug()<<drug_name;

    emit setDrugName(drug_name);

/*  class PurchaseQuery   */

drugNameBasicInfo *startDrugNameBasicInfos = new drugNameBasicInfo();
connect(ui->startMNameSearch,SIGNAL(clicked()),this,SLOT(selectStartDrugName()));
/* 当drugNameBasicInfo发送setDrugName(QString &)信号时，PurchaseQuery对象调用槽getStartDrugNameInfo(QString &） */
connect(startDrugNameBasicInfos,SIGNAL(setDrugName(QString &)),this,SLOT(getStartDrugNameInfo(QString &)));

void PurchaseQuery::selectStartDrugName()
{
    startDrugNameBasicInfos->exec();
}

void PurchaseQuery::getStartDrugNameInfo(QString &s)
{
    //qDebug()<<"Drug_name: "<<s;
    ui->startMedcineName->setText(s);
    startDrugNameBasicInfos->close();
}

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