Menù spawn point

UnitScan

How can I spawn this menù at the top of the button? Something like this

[menù]
[button]

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    this->setAcceptDrops(true);
//...
    add = new QPushButton(this);
    add->setIconSize(QSize(16,16));
    add->setIcon(QIcon("add.png"));
    add->setGeometry(10,304,48,22);
    add->setText("Add");
    connect(add, SIGNAL(released()), this, SLOT(addMenuShow()));
//...
}

void MainWindow::addMenuShow()
{
    QMenu* menu = new QMenu(add);
    addFile = new QAction(tr("Add file…"), this);
    addFile->setShortcut(QKeySequence(tr("L")));
    menu->addAction(addFile);   
    QPoint relative;
    relative.setX(10);
    relative.setY(275);
    QPoint pos = menu->mapFrom(add, relative);
    menu->move(pos);
    menu->exec();

}

Thank you in advance

SGaist

Hi,

Do you mean add a menu to the QMenuBar from your QMainWindow ?

UnitScan

@SGaist No, spawn this menù at the top of his parent, the button called "add". The menù spawns on "add" click

SGaist

That looks a bit strange and I haven't seen anything like that in any OS style guidelines. Why not use QPushButton::setMenu ?

UnitScan

@SGaist Let me explain: I have a button called "add", and I have a menu item called "addFile" When the button "add" is clicked, I would make sure that the menu item "addFile" appeared above it, anchored at the top: how can I do that?

SGaist

Use the position of your button as reference and set the position of your menu based on that.

UnitScan

[SOLVED]

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    this->setAcceptDrops(true);
//...
    add = new QPushButton(this);
    add->setIconSize(QSize(16,16));
    add->setIcon(QIcon("add.png"));
    add->setGeometry(10,304,48,22);
    add->setText("Add");
    connect(add, SIGNAL(released()), this, SLOT(addMenuShow()));
//...
}

void MainWindow::addMenuShow()
{
    QMenu* menu = new QMenu(add);
    addFile = new QAction(tr("Add file…"), this);
    addFile->setShortcut(QKeySequence(tr("L")));
    menu->addAction(addFile);
    QSize s = menu->sizeHint();
    menu->popup(add->mapToGlobal(QPoint(0,0-s.height())));
}

SGaist

Be aware that you are, sort of, leaking memory here. You are creating a new menu each time you click on the add button which will only be destroyed once the button is destroyed.

UnitScan

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    this->setAcceptDrops(true);
//...
    add = new QPushButton(this);
    add->setIconSize(QSize(16,16));
    add->setIcon(QIcon("add.png"));
    add->setGeometry(10,304,48,22);
    add->setText("Add");

    bottomAdd = new QMenu(add);
    addFile = new QAction(tr("Add file…"), this);
    addFile->setShortcut(QKeySequence(tr("L")));
    bottomAdd->addAction(addFile);
    connect(addFile, SIGNAL(triggered()), this, SLOT(openmediaOnClick()));
//...
}

void MainWindow::addMenuShow()
{
    QSize size = bottomAdd->sizeHint();
    bottomAdd->popup(add->mapToGlobal(QPoint(0,0-size.height())));
}

SGaist

Why not use bottomAdd->height(); or its top left coordinate ?