Examples of org.geomajas.gwt.client.widget.ScaleSelect

org.geomajas.gwt.client.widget.ScaleSelect

A drop down selection box for setting and displaying the current scale of a map. The displayed scale is a relative scale and is expressed as an abstract number, as opposed to the MapView scale which is expressed in pixels per map unit. An arbitrary scale can be filled in by the user. Implemented as a canvas so it can be added where needed.

This widget has the option to add new scale levels to the list, as the user types them (and presses 'Enter'). By default this option is turned off. Turn it on using the setUpdatingScaleList method.
@author Jan De Moerloose @since 1.6.0


  private ScaleSelect scaleSelect;


  public ScaleSelectAction(MapWidget mapWidget) {
    super("", ""); // dummy icon and tooltip
    scaleSelect = new ScaleSelect(mapWidget);
  }

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    // wait for the map to be loaded cause we need a correct map.getPixelPerUnit
    map.getMapModel().addMapModelHandler(new MapModelHandler() {


      public void onMapModelChange(MapModelEvent event) {
        ScaleSelect scaleSelect = new ScaleSelect(map.getMapModel().getMapView(), map.getPixelPerUnit());
        Double[] customScales = new Double[] { 1.0 / 100000000.0, 1.0 / 50000000.0, 1.0 / 2500000.0 };
        scaleSelect.setScales(customScales);
        toolbar.addChild(scaleSelect);
      }
    });


    return layout;

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    // wait for the map to be loaded cause we need a correct map.getPixelPerUnit
    map.getMapModel().addMapModelHandler(new MapModelHandler() {


      public void onMapModelChange(MapModelEvent event) {
        ScaleSelect scaleSelect = new ScaleSelect(map.getMapModel().getMapView(), map.getPixelPerUnit());
        toolbar.addMember(scaleSelect);
      }
    });


    return layout;

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Related Classes of org.geomajas.gwt.client.widget.ScaleSelect

com.smartgwt.client.widgets.form.DynamicForm

com.smartgwt.client.widgets.form.fields.ComboBoxItem

org.geomajas.example.gwt.client.samples.toolbar.ScaleSelectCustomSample

org.geomajas.example.gwt.client.samples.toolbar.ScaleSelectDefaultSample

org.geomajas.gwt.client.action.toolbar.ScaleSelectAction

org.geomajas.gwt.client.map.event.MapModelHandler

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