Second ui slots not working

Pablo J. Rogina

@Ucn_ said in Second ui slots not working:

I have updated my code

and where it is?

Ucn_

@Pablo-J-Rogina I posted the code, the private slot (void on_pushButton5_clicked()) does not work or even a manual one, the code I have posted is just structure of my code, I want to achieve the same results, it doesn't give errors, but the issue is the same

Pablo J. Rogina

@Ucn_ said in Second ui slots not working:

I posted the code

Again, where?
Are you able to see the code under this topic thread?
I cannot.

Ucn_

@Pablo-J-Rogina I am not sure why the code is not showing up, but it's there. I am posting here again
mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

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

private slots:

    void on_pushButton_clicked();

private:
    Ui::MainWindow *ui;
};

#endif // MAINWINDOW_H

secnui.h

#ifndef SECNUI_H
#define SECNUI_H

#include "ui_secndui.h"
#include <QObject>
#include <QWidget>
#include <QtWidgets>

class secnUi : public QWidget
{
    Q_OBJECT
public:
    explicit secnUi(QWidget *parent = nullptr);

    QVBoxLayout *getTreeto(){

        return ui2.verticalLayout_6;
    }

signals:

private slots:
    void on_pushButton5_clicked();

private:
    Ui::secnUi ui2;
};

#endif // SECNUI_H

mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "secnui.h"

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

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

void MainWindow::on_pushButton_clicked()
{
    secnUi captureWig;
    QVBoxLayout *sendWig = new QVBoxLayout;
    sendWig = captureWig.getTreeto();

    QWidget *w = new QWidget();
    w->setLayout(sendWig);

    ui->tabWidget->addTab(w, "Newtab");
}

secnui.cpp

#include "secnui.h"
#include "QDebug"

secnUi::secnUi(QWidget *parent) : QWidget(parent)
{
    ui2.setupUi(this);
}

void secnUi::on_pushButton5_clicked()
{
    qDebug() << "test";
    ui2.pushButton_02->setText("test");
}

main.cpp

#include "mainwindow.h"
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();

    return a.exec();
}

mainwindow.ui

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>657</width>
    <height>663</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralWidget">
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
     <widget class="QTabWidget" name="tabWidget"/>
    </item>
    <item>
     <widget class="QPushButton" name="pushButton">
      <property name="text">
       <string>add</string>
      </property>
     </widget>
    </item>
   </layout>
  </widget>
  <widget class="QMenuBar" name="menuBar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>657</width>
     <height>21</height>
    </rect>
   </property>
  </widget>
  <widget class="QToolBar" name="mainToolBar">
   <attribute name="toolBarArea">
    <enum>TopToolBarArea</enum>
   </attribute>
   <attribute name="toolBarBreak">
    <bool>false</bool>
   </attribute>
  </widget>
  <widget class="QStatusBar" name="statusBar"/>
 </widget>
 <layoutdefault spacing="6" margin="11"/>
 <resources/>
 <connections/>
</ui>

secndui.ui

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>secnUi</class>
 <widget class="QWidget" name="secnUi">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>426</width>
    <height>484</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>Form</string>
  </property>
  <widget class="QWidget" name="verticalLayoutWidget_3">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>421</width>
     <height>481</height>
    </rect>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout_6">
    <item>
     <widget class="QGroupBox" name="groupBox_4">
      <property name="title">
       <string>GroupBox</string>
      </property>
      <layout class="QVBoxLayout" name="verticalLayout_7">
       <item>
        <widget class="QGroupBox" name="groupBox_5">
         <property name="title">
          <string>GroupBox</string>
         </property>
         <layout class="QHBoxLayout" name="horizontalLayout_2">
          <item>
           <widget class="QPushButton" name="pushButton5">
            <property name="text">
             <string>PushButton</string>
            </property>
           </widget>
          </item>
          <item>
           <widget class="QPushButton" name="pushButton_02">
            <property name="text">
             <string>PushButton</string>
            </property>
           </widget>
          </item>
          <item>
           <widget class="QPushButton" name="pushButton_3">
            <property name="text">
             <string>PushButton</string>
            </property>
           </widget>
          </item>
         </layout>
        </widget>
       </item>
       <item>
        <widget class="QLabel" name="label">
         <property name="text">
          <string>Recent Added:</string>
         </property>
        </widget>
       </item>
       <item>
        <widget class="QTableWidget" name="tableWidget"/>
       </item>
       <item>
        <widget class="QDialogButtonBox" name="buttonBox_3">
         <property name="standardButtons">
          <set>QDialogButtonBox::Ok</set>
         </property>
        </widget>
       </item>
      </layout>
     </widget>
    </item>
   </layout>
  </widget>
 </widget>
 <resources/>
 <connections/>
</ui>

jsulm

@Ucn_ said in Second ui slots not working:

secnUi captureWig;

This is a local variable which is destroyed as soon as MainWindow::on_pushButton_clicked() finishes.
Allocate captureWig on the heap.

Ucn_

@jsulm thanks, secnUi *captureWig; captureWig = new secnUi(); fixed it. By the way do you know how can I connect a slot to this button that is in second ui, considering it is inside a loop and invoked in the mainwindow?

for (char letter = 'A'; letter <= 'M'; ++letter) {

        std::string s;
        s += letter;
        QString qstr = QString::fromStdString(s);
        QPushButton *button_first = new QPushButton(qstr);
        ui2.horizontalLayout->addWidget(button_first);
    }

a slot like this:

connect(button_first, &QPushButton::triggered, this, &secnUi::openInNewWindow);

jsulm

@Ucn_ said in Second ui slots not working:

connect(button_first, &QPushButton::triggered, this, &secnUi::openInNewWindow);

Sorry, you have to explain better: where is all this code located? Is "this" secnUi instance?
By the way this is not a slot but a call to connect().

Ucn_

@jsulm Actually I figured out, I only needed your solution "Allocate captureWig on the heap". Once again thanks.

aha_1980

Hi @Ucn_,

Just for your information:

std::string s;
s += letter;
QString qstr = QString::fromStdString(s);

can be done better with this constructor: QString qstr = QString(QChar(letter));

Regards

Ucn_

@aha_1980 thanks, I just didn't know how to convert that.