[Solved] How can I add a QLineEdit to Menubar?

Macro

Hi Developers,

I am just trying to create a search bar kind of application by using a QLineEdit. In my Menu Bar i have enough space to fit this search Bar(QLlineEdit). But unfortunately i can't figure it out, how to get the QLineEdit into the Menu Bar. Can anyone please suggest me regarding this?

Thanks & Regards

Code_ReaQtor

This "thread":http://www.qtcentre.org/threads/41252-how-to-add-widget-to-QMenubar and this "thread":http://stackoverflow.com/questions/3915327/adding-custom-widgets-to-qmenubar may help you.

I have not tried them though as I only tried adding QLineEdit to the MainToolbar. I've never seen any GUIs with a QLineEdit on the QMenuBar. Good Luck!

jazzycamel

"QWidgetAction":http://doc.qt.digia.com/qt/qwidgetaction.html in theory allows you to put a widget anywhere you can put a QAction, in a menu for example:

@
#include <QtGui>

class MainWindow : public QMainWindow
{
public:
MainWindow(QWidget *parent = 0) : QMainWindow(parent){
QWidgetAction *widgetAction=new QWidgetAction(this);
widgetAction->setDefaultWidget(new QLineEdit(this));

    QMenu *fm=menuBar()->addMenu("File");
    fm->addAction(widgetAction);
}

};

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

However, on MacOSX you won't be able to interact with the widget (see docs) so its not great for cross compatibility/multi platform apps.

Also, I'm not sure that you can actually put a widget into the QMenuBar itself (i.e File|Edit|View|[search box]), the following certainly doesn't work for me:

@
menuBar().addAction(widgetAction);
@

Maybe someone else has had some luck? Convention would have you place this in the windows toolbar anyhow.

Finally, if you really do want to have "File|Edit|View|[search box]" then the following might help, it even works on MacOSX (by breaking the native behavior I hasten to add):

@
#include <QtGui>

class Widget : public QWidget
{
public:
Widget(QWidget *parent = 0) : QWidget(parent){
resize(640,480);

    QVBoxLayout *l=new QVBoxLayout(this);
    l->setAlignment(Qt::AlignTop);
    l->setContentsMargins(0,0,0,0);
    l->setSpacing(0);

    QHBoxLayout *ml=new QHBoxLayout;
    l->addLayout(ml);

    menuBar=new QMenuBar(this);

    QMenu *fm=menuBar->addMenu("&File");
    fm->addAction(new QAction("Item 1", this));
    fm->addAction(new QAction("Item 2", this));
    fm->addAction(new QAction("Item 3", this));

    QMenu *em=menuBar->addMenu("&Edit");
    em->addAction(new QAction("Item 1", this));
    em->addAction(new QAction("Item 2", this));
    em->addAction(new QAction("Item 3", this));

    QMenu *vm=menuBar->addMenu("&View");
    vm->addAction(new QAction("Item 1", this));
    vm->addAction(new QAction("Item 2", this));
    vm->addAction(new QAction("Item 3", this));

    ml->addWidget(menuBar);

    search=new QLineEdit(this);
    search->setPlaceholderText("Search...");
    search->setMaximumWidth(200);
    ml->addWidget(search);

    setFocus();
}
QMenuBar *menuBar;
QLineEdit *search;

};

int main(int argc, char *argv[])
{
QApplication a(argc, argv);

#ifdef Q_WS_MAC
a.setAttribute(Qt::AA_DontUseNativeMenuBar, true);
#endif

Widget w;
w.show();   
return a.exec&#40;&#41;;

}
@

Hope (all) this helps ;o)

Macro

Hi Jazzycamel...

First of all, my applogies for late reply. Your code works fine... :-) Thanks Jazzycamel..

Thanks & Regards

Macro

Thanks for your reply Code_ReaQtor....