QListWidgetItem Button to display text

[giblit]

So I figured out how I can put the text from the ListWidget into the textEdit but what I would like to do is after I select the item I then have to press a QPushButton before it will display the text into the textEdit box I tried using this:

listWidget->addItem(new QListWidgetItem("Hello"));
listWidget->addItem(new QListWidgetItem("World"));
listWidget->addItem(new QListWidgetItem("Andrew"));
listWidget->setSelectionMode(QAbstractItemView::MultiSelection);
QModelIndex modelIndex = listWidget->rootIndex();
listWidget->setCurrentIndex(modelIndex);
textEdit->setReadOnly(true);
 
 
 
connect(listWidget,SIGNAL(itemActivated(QListWidgetItem*)),
        this,SLOT(listWidgetItemDoubleClicked(QListWidgetItem*)));
connect(listWidget, SIGNAL(itemClicked(QListWidgetItem*)),
        this, SLOT(listWidgetItemClicked(QListWidgetItem*)));
connect(pushButton,SIGNAL(clicked()),
        this,SLOT(button_pressed()));
}
 
 
void ListWidgetDialog::listWidgetItemClicked(QListWidgetItem *item)
{
 
    if(!textEdit->document()->isEmpty()){
        QTextCursor c = textEdit->textCursor();
         textEdit->setTextCursor(c);
         c.beginEditBlock();
        textEdit->insertPlainText(", "+item->text());
     c.endEditBlock();
    }
    if(textEdit->document()->isEmpty()){
        QTextCursor c = textEdit->textCursor();
        c.beginEditBlock();
        textEdit->insertPlainText(item->text());
        c.endEditBlock();
 
    }
 
}
void ListWidgetDialog::button_pressed(){
  void listWidgetItemClicked(QListWidgetItem*);
  textEdit->insertPlainText("HELLO I HAVE BEEN PRESSED");
}

listWidget->addItem(new QListWidgetItem("Hello"));
listWidget->addItem(new QListWidgetItem("World"));
listWidget->addItem(new QListWidgetItem("Andrew"));
listWidget->setSelectionMode(QAbstractItemView::MultiSelection);
QModelIndex modelIndex = listWidget->rootIndex();
listWidget->setCurrentIndex(modelIndex);
textEdit->setReadOnly(true);



connect(listWidget,SIGNAL(itemActivated(QListWidgetItem*)),
        this,SLOT(listWidgetItemDoubleClicked(QListWidgetItem*)));
connect(listWidget, SIGNAL(itemClicked(QListWidgetItem*)),
        this, SLOT(listWidgetItemClicked(QListWidgetItem*)));
connect(pushButton,SIGNAL(clicked()),
        this,SLOT(button_pressed()));
}


void ListWidgetDialog::listWidgetItemClicked(QListWidgetItem *item)
{

    if(!textEdit->document()->isEmpty()){
        QTextCursor c = textEdit->textCursor();
         textEdit->setTextCursor(c);
         c.beginEditBlock();
        textEdit->insertPlainText(", "+item->text());
     c.endEditBlock();
    }
    if(textEdit->document()->isEmpty()){
        QTextCursor c = textEdit->textCursor();
        c.beginEditBlock();
        textEdit->insertPlainText(item->text());
        c.endEditBlock();

    }

}
void ListWidgetDialog::button_pressed(){
  void listWidgetItemClicked(QListWidgetItem*);
  textEdit->insertPlainText("HELLO I HAVE BEEN PRESSED");
}

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but it shows the items when I press them on the ListWidget. and then Shows the message "HELLO I HAVE BEEN PRESSED" when I press the button. I want it to display nothing when I press on the ListWidget, but when I press on the ListWidget then the Button it to display the item then the "hello" message.