End to End GUI Development with Qt5

Simulating the usecase action

Instead of having to change the model from code, as we did in the last line of the scene, we want the panels number to increase when pressing the "+" button. Let's do a little refactoring and extract panelAdder as a standalone component into a separate PanelButton document, so that we can expose the clicked signal of its MouseArea in a clean way:

// PanelButton.qmlimport QtQuick 2.0Item {    signal clicked()    width: 40    height: width    anchors.right: parent.right    opacity: 0.5    Text {        text: "+"        anchors.centerIn: parent        font.pixelSize: 40    }    MouseArea {        onClicked: parent.clicked()        anchors.fill: parent    }}  

Unlike properties, signals cannot be aliased, hence the need to "repeat" the signal from the inner object to the outer ...