ToolButton QML Type

ApplicationWindow {
    ...
    toolBar: ToolBar {
        RowLayout {
            ToolButton {
                iconSource: "new.png"
            }
            ToolButton {
                iconSource: "open.png"
            }
            ToolButton {
                iconSource: "save-as.png"
            }
            Item { Layout.fillWidth: true }
            CheckBox {
                text: "Enabled"
                checked: true
            }
        }
    }
}