recover a slot parameter

jasser

Hello ,
In my code I have a slot that receive a type parameter QString , I want to assign the value for this parameter in another variable , or the use DIRECTLY , in another function of the same class .

in my code the signal is emitted from another class

help me please and
thank you

MyWidget.h

#ifndef MYWIDGET_H
#define MYWIDGET_H
#include"myclass.h"
#include <QWidget>
#include <QtWidgets>
namespace Ui {
class MyWidget;
}

class MyWidget : public QWidget
{
    Q_OBJECT

public:
    explicit MyWidget(QWidget *parent = 0);
    ~MyWidget();
private:
    Ui::MyWidget *ui;
signals:
   void redirectData(QString data);
public slots:
   void sendData();
private:
   MyClass *myClass; // the object to receive and output the data
};

#endif // MYWIDGET_H

MyWidget.cpp

#include "mywidget.h"
#include "ui_mywidget.h"
MyWidget::MyWidget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::MyWidget)
{
    ui->setupUi(this);
    myClass = new MyClass();

    connect(ui->pushButton, SIGNAL(clicked()), this, SLOT(sendData()));
    connect(this, SIGNAL(redirectData(QString)), myClass, SLOT(outputData(QString)));
}

MyWidget::~MyWidget()
{
    delete ui;
}
void MyWidget::sendData()
{

    emit redirectData(ui->lineEdit->text());
    myClass->show();

}

MyClass.h

#ifndef MYCLASS_H
#define MYCLASS_H
#include <QWidget>

namespace Ui {
class MyClass;
}

class MyClass : public QWidget
{
    Q_OBJECT

public:
    explicit MyClass(QWidget *parent = 0);
    ~MyClass();
    QString x;
private:
    Ui::MyClass *ui;
signals:
    void send2(QString);
public slots:
    void outputData(QString data);
};
#endif // MYCLASS_H

MyClass.cpp

#include "myclass.h"
#include "ui_myclass.h"

MyClass::MyClass(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::MyClass)
{
    ui->setupUi(this);
    ui->plainTextEdit->insertPlainText(x); // show x in plainTextEdit
}

MyClass::~MyClass()
{
    delete ui;
}
void MyClass::outputData(QString data){

   x=data; // affect data a x 
}

here is a catch

catch 1

I want to display x in qplaintext

this method is correct but does not fit with the rest of my code

I want to recover data in x

MyClass.cpp

#include "myclass.h"
#include "ui_myclass.h"

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

MyClass::~MyClass()
{
    delete ui;
}
void MyClass::outputData(QString data){

    ui->plainTextEdit->insertPlainText(data); 
}

here is a catch
catch 2

SGaist

Hi,

You have to refresh x in your slot and update your QPlainTextEdit accordingly.