Originally reported on stackoverflow:
http://stackoverflow.com/questions/18829093/make-edges-not-clickable-in-roassal-visualization-from-within-a-glamour-browser

In the below example, you need to uncomment the two lines to work around this issue.
We need a better solution.

browser := GLMTabulator new.
browser column: #myRoassal ; column: #mySelection.
browser transmit 
    to: #myRoassal ;
    andShow: 
    [   : aGLMPresentation |
        aGLMPresentation roassal
            painting:
            [   : view : numbers |  |edges|
                view shape rectangle ; withText ; size: 30.
                view nodes: numbers.
                view interaction noPopup.
                view edges: numbers from:  [ :x | x / 2] to: [ :x | x ].
"               view edges do: [ :edge | edge model:#doNotSelectMe ]."
                view treeLayout.
            ].
    ].
browser transmit 
    to: #mySelection ;
    from: #myRoassal ;
"   when: [ :selection | selection ~= #doNotSelectMe ] ;"
    andShow: 
    [   : aGLMPresentation |
        aGLMPresentation text
            display: [ : selectedItem | selectedItem asString ]
    ].
browser openOn: (1 to: 10).