QResizeEvent alternative for QQuickItem

Eligijus

Hello,

Is there an alternative to QResizeEvent for QQuickItem?

sierdzio

Is that what you mean?

Window {
  onWidthChanged: console.log("New width: " + width)
}

However, QResizeEvent comes from QtGui - QML windows also respond to it. You can probably catch the event on C++ side if you need to.

Eligijus

@sierdzio I should have specified that I need to catch it on c++ side. I have tried overriding event method and catching QResizeEvent but it was never captured.
Code:

bool Test::event(QEvent *ev)
{
    if (ev->type() == QEvent::Resize) {
        QResizeEvent *resizeEvent = static_cast<QResizeEvent *>(ev);
        qDebug() << resizeEvent;

        return true;
    }

    return QObject::event(ev);
}

method to change size:

Q_INVOKABLE void incSize();

void Test::incSize()
{
    setWidth(width() - 1);
    setHeight(height() - 1);
}

qml side, button changes Test's size.

    Test {
        id: tsX
        width: 100.2
        height: 100.2
        y: 2
    }

    Button {
        x: 150
        y: 100
        text: "check2"
        MouseArea {
            anchors.fill: parent
            onClicked: { tsX.incSize() }
        }
    }

sierdzio

Resize events happen for windows and widgets, not QQuickItems (I assume Test is a QQuickItem). See the event list from the documentation.

If you want to catch this from C++ side, you need to connect to height/widthChanged() signal, or reimplenent geometryChanged() slot.