Examples of org.locationtech.udig.project.ILegendItem

org.locationtech.udig.project.ILegendItem

Item listed in a map legend (including folders, layers and in the future style based categories generated from the current style).

The purpose of these classes is to communicate the information being displayed; rather than to strictly control draw order and display. As such we can show/hide individual LegendItems from the legend (if for example they are not considered interesting to the task at hand).

These are focused on the legend and define the Icon and "Display Name" presented to the end user. This is based on what information the map is trying to communicate and does not have to directly match the name of the IGeoResource being displayed.

For example during disaster response a dataset of "urban zone planning" may be repurposed and displayed in the legend as "Expected Population Densisity" (given a few assumptions about time of day and the location of commuters). @author paul.pfeiffer


        @Override
        public void checkStateChanged( CheckStateChangedEvent event ) {
            final Object eventObj = event.getElement();
            if (eventObj instanceof ILegendItem) {
                final ILegendItem item = (ILegendItem) eventObj;
                final boolean isChecked = event.getChecked();
                setVisibilityState(item, isChecked);
                LegendViewCheckboxUtils.updateCheckboxes(LegendView.this);
            }
        }

     * Performs moving in the source object into a folder.
     * 
     * @param source
     */
    private void moveIn(Object source) {
        final ILegendItem sourceItem = (ILegendItem) source;
        final Folder folder = (Folder) target;
        folder.getItems().add(sourceItem);
    }

     * @param source
     * @param location
     */
    private void move(Object source, ViewerDropLocation location) {


        final ILegendItem sourceItem = (ILegendItem) source;
        
        final List<ILegendItem> sourceSiblings = getSiblings(source);
        final List<ILegendItem> targetSiblings = getSiblings(target);


        if (sourceSiblings == targetSiblings) {

Examples of org.locationtech.udig.project.ILegendItem

Related Classes of org.locationtech.udig.project.ILegendItem