[Users] drawing tools - code is not logical - is there a better way?

[Robert Buckley]

Hi,

I have some code which creates drawing tools for a map in openlayers 2.12. The code works, but what I don´t understand is that I can only modify the drawing if I add the drawing-vector layer to the map with a handler in the code for each drawing action - (point,polygon,line). If I add the drawing-layer to the map before an action is triggered and remove the "add vector layer" handler in each tool, I can still draw, but I can´t modify the drawings!?!


Here is the code showing a working version where the modify tool works. For every action, the vector layer gets adds again via the handler. At the beginning, the commented out line will allow the layer to be added to the map before the drawing-actions starts, but I won´t be able to modify them.

Is there a better way to do this? It seems a very unlogical way to to this.

Thanks,

Rob

var vector = new OpenLayers.Layer.Vector("vector",{styleMap: styleMap2});
    //map.addLayers([vector]); // this adds the layer to the map before the tool actions are started.

action = new GeoExt.Action({
        text: "Fläche",
        icon:"images/edit_poly.png",
        control: new OpenLayers.Control.DrawFeature(vector, OpenLayers.Handler.Polygon,{
        handlerOptions: {
                layerOptions: {
                    styleMap: styleMap2
                }
            }}
        ),
        map: map,
        toggleGroup: "mapTools",
        allowDepress: false,
        handler: function(){
        map.addLayers([vector]);
        },
        tooltip: "<b>Fläche zeichnen",
        group: "mapTools"
    });
    actions["draw_poly"] = action;
toolbarItems_edit.push(action);
toolbarItems_edit.push('-',' ' );
    action = new GeoExt.Action({
        text: "Linie",
        icon:"images/edit_line.png",
        control: new OpenLayers.Control.DrawFeature(vector, OpenLayers.Handler.Path,{
        handlerOptions: {
                layerOptions: {
                    styleMap: styleMap2
                }
            }}
        ),
        map: map,
        toggleGroup: "mapTools",
        allowDepress: false,
         handler: function(){
        map.addLayers([vector]);
        },
        tooltip: "<b>Linie zeichnen",
        group: "mapTools"
    });
    actions["draw_line"] = action;
toolbarItems_edit.push(action);
toolbarItems_edit.push('-',' ' );
action = new GeoExt.Action({
        text: "Überarbeiten",
        icon:"images/edit_modify.png",
        control: new OpenLayers.Control.ModifyFeature(
            vector,{}
        ),
        map: map,        
        toggleGroup: "mapTools",
        enableToggle: true,
        tooltip: "<b>Elemente verschieben",
        group: "mapTools"
    });
    actions["modify_features"] = action;
    toolbarItems_edit.push(action);
    toolbarItems_edit.push('-',' ' );
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