How to iterate for each element of collection

Kaluss

Hello,
I got some trouble with my collection of displayed elements.

The code is look like:

@ ListModel {
id: boardModel
}

  GridView{
     id: myGridView
     anchors.fill: myBoard
     model: boardModel
     cellHeight: myBoard.frameSize
     cellWidth: myBoard.frameSize
     delegate: SingleTile{}
    }
  function flipFrames(which){

      for(var index=0;index<myGridView.count;++index){
          myGridView.currentIndex = index
          myGridView.currentItem.setFlipped(which)
      }
      myGridView.currentIndex = which
  } @

In function flipFrames after clicking on one element form the listModel I execute function from SingleTile object for each element. This solution has some issue because when Im changing currentIndex the window sometims start to move.

Does anybody knows how to do something like that without changing currentIndex value ?

David Stiel

Hi

I would probably do something like
@
GridView{
id: myGridView
anchors.fill: myBoard
model: boardModel
cellHeight: myBoard.frameSize
cellWidth: myBoard.frameSize
property int which : -1 //new
delegate: SingleTile{
id : theDelegate
Connections{ //new
target : myGridView
onWhichChanged :{
theDelegate.setFlipped(myGridView.which);
}
}
}
}

function flipFrames(which){
myGridView.which = which;
}
@

The idea (which I find useful with QML) is to use property bindings and let each element act individually. This is a bit different from c++ where we are used to looping over a collection and tell each element what to do.