Delegate y property change

Hi there,

I have a rectangle on which I want to put some elements positioned along x and y. To do this, I used a model in C++ and a ListView in QML. The delegate has a bind on x and y properties referring to a data of the model through a C++ conversion function. This works fine on x property but not on y property.

I put a trace into onXchanged and onYchanged. X contains the correct value. Y gets the correct value then there's a second trace (this does not happen on x) indicating that y is 0 while the conversion function is called only once.

Any idea?

Thanks

Qt4.8.5, QtQuick 1.1

You should give more information (code!). Is the rectangle inside any Layout?

It might be easier to use a Repeater. Here is a working example that uses an array as a model (but you can replace it with a C++ model).

Code:

---

Item {
  id: root
  width: 1000; height: 600
  property var model: [
    {"x": 100, "y": 50, "color": "red"}, 
    {"x": 60, "y": 320, "color": "blue"},
    {"x": 360, "y": 210, "color": "green"}
  ]
  Rectangle {
    color: "gray"
    width: 600
    height: 400
    anchors.centerIn: parent
 
    border.color: Qt.darker(color)
    border.width: 1
 
    Repeater {
      model: root.model
 
      Item {
        x: modelData.x
        y: modelData.y
        Rectangle {
          width: 40; height: width; radius: width/2
          color: modelData.color
          anchors.centerIn: parent
          border.color: Qt.darker(color)
          border.width: 1
        }
      }
    }
  }
}

---

Thanks for your replies,

My project has been postponed, I keep in mind your solution and try it as soon as I can.

Many thanks