Get Text from a Qlabel from QWidget inside QMdiAreaSubWindow, when window is active/selected?

Hermes22

How to get text from a QLabel from QWidget which is displayed in a QMdiAreaSubWindow? I need the text in mainwindow.cpp. Any tips/suggestion are welcome....

In MainWindow i have:

void MainWindow::on_mdiArea_subWindowActivated(QMdiSubWindow *arg1)
{
    QWidget *widget = arg1->widget();
    tabs *tab = new tabs(widget);
    QString tabname = tab->getData();
    qDebug() << "tabname:" << tabname;
}

in tabs.h:

#ifndef TABS_H
#define TABS_H

#include <QWidget>


namespace Ui {
class tabs;
}

class tabs : public QWidget
{
    Q_OBJECT

public:
    explicit tabs(QWidget *parent = nullptr);
    ~tabs();
    void sendData(QString name, QString time, QString date, QString country, QString province, QString city, QString longitude, QString latitude, QString timezone, QString ut, QString houseSys, QString houseSysOpt, QString lonhemi, QString longitude_deg, QString longitude_min, QString lathemi, QString latitude_deg, QString latitude_min);
    QString getData();

private:
    Ui::tabs *ui;

    QString tabName;
    QString tabTime;
    QString tabDate;
    QString tabCountry;
    QString tabProvince;
    QString tabCity;
    QString tabLongitude;
    QString tabLatitude;
    QString tabTimezone;
    QString tabUt;
    QString tabLonHemi;
    QString tabLongitude_deg;
    QString tabLongitude_min;
    QString tabLatHemi;
    QString tabLatitude_deg;
    QString tabLatitude_min;
    QString tabHouseSys;
    QString tabHouseSysOpt;

};

#endif // TABS_H

in tabs.cpp:

#include "tabs.h"
#include "ui_tabs.h"

#include <QDebug>
#include <mainwindow.h>

tabs::tabs(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::tabs)
{
    ui->setupUi(this);

    ui->label_24->hide();
}

void tabs::sendData(QString name, QString time, QString date, QString country, QString province, QString city, QString longitude, QString latitude, QString timezone, QString ut, QString houseSys, QString houseSysOpt, QString lonhemi, QString longitude_deg, QString longitude_min, QString lathemi, QString latitude_deg, QString latitude_min) {
    qDebug() << "tabs work:" << tabName << tabTime << tabDate << tabCountry << tabProvince << tabCity << tabLongitude << tabLatitude << tabTimezone << tabUt << tabHouseSys << tabHouseSysOpt << tabLonHemi << tabLongitude_deg << tabLongitude_min << tabLatHemi << tabLatitude_deg << tabLatitude_min;

    ui->label_2->setText(name);
    ui->label_4->setText(time);// Set time label
    ui->label_6->setText(date);
    ui->label_8->setText(country);
    ui->label_10->setText(province);
    ui->label_12->setText(city);
    ui->label_16->setText(longitude);
    ui->label_17->setText(latitude);
    ui->label_25->setText(longitude_deg+" "+longitude_min+" "+lonhemi);
    ui->label_27->setText(latitude_deg+" "+latitude_min+" " + lathemi);
    ui->label_14->setText(timezone);
    ui->label_19->setText(ut);
    ui->label_21->setText(houseSys);
    ui->label_24->setText(houseSysOpt);

    ui->chartdisplay->showFile(ui->label_2->text());
    ui->widget->showFile(ui->label_2->text());

    tabName = name;
    tabTime = time;
    tabDate = date;
    tabCountry = country;
    tabProvince = province;
    tabCity = city;
    tabLongitude = longitude;
    tabLatitude = latitude;
    tabTimezone = timezone;
    tabUt = ut;
    tabLonHemi = lonhemi;
    tabLongitude_deg = longitude_deg;
    tabLongitude_min = longitude_min;
    tabLatHemi = lathemi;
    tabLatitude_deg = latitude_deg;
    tabLatitude_min = latitude_min;
    tabHouseSys = houseSys;
    tabHouseSysOpt = houseSysOpt;

    qDebug() << " name: " << name;

}

QString tabs::getData() {

    QString name = tabName;
    return name;

}

tabs::~tabs()
{
    delete ui;
}

SGaist

Hi,

The widget in your QMdiSubwindow is a tabs object, correct ?

If so, you should use qobject_cast and then call the method you want on it.