[SOLVED] Passing menu event to another window

sharon_obl82

Hi,
I need some advice on this issue. I have two forms, lets say form A and form B. When i click on a menu event on form A, let's say 'New', I want to send this 'New' in text to form B to be displayed on a lineedit.
If i click on 'Open', it will instead displayed Open in the lineedit in form B.
Does anyone know how to do this?
Thank you.

p3c0

Hi,

You can connect "triggered":http://qt-project.org/doc/qt-5/qmenu.html#triggered signal of QAction on Form A to a slot of Form B and there you can update the LineEdit.
Some thing like this For Eg.
@
QMenu *menu = new QMenu(this);
menu->setStyleSheet(
"QMenu {"
"padding: 1px;"
"min-width: 3em;"
"min-height: 2px;"
"background-color: rgba(50, 50, 50, 50);"
"border: 1px solid gray;"
"}"

                "QMenu::item {"
                "color: white;"
                "}"

                "QMenu::item:selected { "
                "background-color: rgb(153,215,255,80);"
                "}"
                );

    QAction *newDoc;
    newDoc = new QAction(tr("New"), this);
    connect(newDoc, SIGNAL(triggered()), formB, SLOT(updateLineEdit())); //formB is Form B class's object and updateLineEdit is the respective slot of its

    menu->addAction(newDoc);

@

sharon_obl82

is this correct?

@
RadioWindow rw; //object from form B
QAction *newDoc = new QAction(tr("New"), this);
connect(newDoc, SIGNAL(triggered()), rw, SLOT(ui->lineEdit_6->setText("New"));

myMenu.addAction(newDoc);
@

I get compilation error :
expected ')' before ';' token

jeremy_k

[quote author="sharon_obl82" date="1403055671"]
@
connect(newDoc, SIGNAL(triggered()), rw, SLOT(ui->lineEdit_6->setText("New"));
@

[/quote]

Count the () pairs. There's a ) missing immediately before the ;

sharon_obl82

ok, fixed it. Is this correct?

In form A:
@
QMenu myMenu;
RadioWindow *rw; //object from form B
QAction *newDoc = new QAction(tr("New"), this);
connect(newDoc, SIGNAL(triggered())), rw, SLOT(rw.setvalue());

    myMenu.addAction(newDoc);

@

in Form B

@
void RadioWindow::setvalue()
{
ui->lineEdit_6->setText("New");

}
@

I still get compile error saying "No matching function for call to MainWindow::connect .."

What am I missing here please?

p3c0

@SLOT(rw.setvalue());@

just keep it as
@SLOT(setValue())@

Be sure that setValue has been declared as a SLOT in RadioWindow.
Also seeing your this code:
@
RadioWindow *rw; //object from form B
@

you must create a new object for RadioWindow.

sharon_obl82

thanks all, managed to solve my problem :)