Examples of org.geotools.map.MapContent

org.geotools.map.MapContent
Stores the contents of a map for display, including a list of layers, a {@linkplain MapViewport} defining the device and world bounds of displayarea, and optional user data.
Methods are provided to add, remove and reorder layers. Alternatively, the list of layers can be accessed directly with the {@linkplain #layers()}. For example:
```
 mapContent.layers().add( newLayer ); 
```
Operations on the list returned by the {@code} layersmethod are guaranteed to be thread safe, and modifying the list contents will result in {@code MapLayerListEvents}being published.
Note: This object is similar to early drafts of the OGC Open Web Service Context specification. @author Jody Garnett @since 2.7 @source $URL$ @version $Id$

     * @param crs data coordinate reference system
     */
    protected void setCRS( CoordinateReferenceSystem crs ) {
        this.dataCRS = crs;


        MapContent content = getMapContent();
        if (content == null) {
            throw new IllegalStateException("map context should not be null");
        }


        final CoordinateReferenceSystem contextCRS = content.getCoordinateReferenceSystem();
        transformRequired = false;
        if (contextCRS != null && crs != null && !CRS.equalsIgnoreMetadata(contextCRS, dataCRS)) {
            transformRequired = true;
        }
    }

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    }
    
    @Test
    public void resizingPaneFiresEvent() {
        window.show(new Dimension(WIDTH, HEIGHT));
        MapContent mapContent = createMapContent(createMatchedBounds(mapPane.getVisibleRect()));
        mapPane.setMapContent(mapContent);
        
        listener.setExpected(MapPaneEvent.Type.DISPLAY_AREA_CHANGED);
        window.resizeTo(new Dimension(WIDTH * 2, HEIGHT * 2));
        assertTrue( listener.await(MapPaneEvent.Type.DISPLAY_AREA_CHANGED, WAIT_TIMEOUT) );

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        assertMoveImage(10, 0);
    }
    
    private void assertMoveImage(int dx, int dy) {
        window.show(new Dimension(WIDTH, HEIGHT));
        MapContent mapContent = createMapContent(createMatchedBounds(mapPane.getVisibleRect()));


        // Wait for the display area and new map content events to be 
        // processed
        listener.setExpected(MapPaneEvent.Type.DISPLAY_AREA_CHANGED);
        listener.setExpected(MapPaneEvent.Type.NEW_MAPCONTENT);
        mapPane.setMapContent(mapContent);
        
        assertTrue(listener.await(MapPaneEvent.Type.DISPLAY_AREA_CHANGED, WAIT_TIMEOUT));
        assertTrue(listener.await(MapPaneEvent.Type.NEW_MAPCONTENT, WAIT_TIMEOUT));
        ReferencedEnvelope startEnv = mapContent.getViewport().getBounds();
        
        listener.setExpected(MapPaneEvent.Type.DISPLAY_AREA_CHANGED);
        mapPane.moveImage(dx, dy);
        assertTrue(listener.await(MapPaneEvent.Type.DISPLAY_AREA_CHANGED, WAIT_TIMEOUT));

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                window.component().setVisible(false);
            }
        });
        
        ReferencedEnvelope fullBounds = createMatchedBounds(mapPane.getVisibleRect());
        MapContent mapContent = createMapContent(fullBounds);
        
        ReferencedEnvelope subBounds = new ReferencedEnvelope(
                fullBounds.getMinX(), fullBounds.getMinX() + fullBounds.getWidth() / 2,
                fullBounds.getMinY(), fullBounds.getMinY() + fullBounds.getHeight() / 2,
                fullBounds.getCoordinateReferenceSystem());
        
        mapContent.getViewport().setBounds(subBounds);
        listener.setExpected(MapPaneEvent.Type.NEW_MAPCONTENT);
        mapPane.setMapContent(mapContent);
        
        // wait for the map pane to be ready
        assertTrue(listener.await(MapPaneEvent.Type.NEW_MAPCONTENT, WAIT_TIMEOUT));

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     * 
     * @param boundsOfLayers 0 or more bounds for layers
     * @return new map content
     */
    protected MapContent createMapContent(ReferencedEnvelope ...boundsOfLayers) {
        MapContent mapContent = new MapContent();
        if (boundsOfLayers != null) {
            for (ReferencedEnvelope env : boundsOfLayers) {
                mapContent.addLayer(createLayer(env));
            }
        }
        return mapContent;
    }

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    protected MockRenderer renderer;
    
    protected void setup() {
        executor = new DefaultRenderingExecutor();
        listener = new WaitingRenderingExecutorListener();
        mapContent = new MapContent();
        mapContent.getViewport().setBounds(WORLD);
        mapContent.getViewport().setScreenArea(PANE);
    }

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    private static final ReferencedEnvelope WORLD = 
            new ReferencedEnvelope(150, 152, -33, -35, DefaultGeographicCRS.WGS84);


    @Test(expected=IllegalArgumentException.class)
    public void nullArgToCtorThrowsException() {
        MapContent mc = new SingleLayerMapContent(null);
    }

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        Shell shell = new Shell(display);
        File openFile = JFileDataStoreChooser.showOpenFile(new String[]{"*.shp"}, shell); //$NON-NLS-1$


        try {
            if (openFile != null && openFile.exists()) {
                MapContent mapContent = mapPane.getMapContent();
                FileDataStore store = FileDataStoreFinder.getDataStore(openFile);
                SimpleFeatureSource featureSource = store.getFeatureSource();
                Style style = Utils.createStyle(openFile, featureSource);
                FeatureLayer featureLayer = new FeatureLayer(featureSource, style);
                mapContent.addLayer(featureLayer);
                mapPane.redraw();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

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            AbstractGridCoverage2DReader tiffReader = format.getReader(openFile);
            StyleFactoryImpl sf = new StyleFactoryImpl();
            RasterSymbolizer symbolizer = sf.getDefaultRasterSymbolizer();
            Style defaultStyle = SLD.wrapSymbolizers(symbolizer);


            MapContent mapContent = mapPane.getMapContent();
            Layer layer = new GridReaderLayer(tiffReader, defaultStyle);
            layer.setTitle(openFile.getName());
            mapContent.addLayer(layer);
            mapPane.redraw();
        }
    }

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    }
    
    @Test(expected=UnsupportedOperationException.class)
    public void addLayerThrowsException() {
        Layer layer = new MockLayer(WORLD);
        MapContent mc = new SingleLayerMapContent(layer);
        
        Layer layer2 = new MockLayer(WORLD);
        mc.addLayer(layer2);
    }

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