@Override
public void inputChanged(
@SuppressWarnings("hiding") Viewer viewer, Object oldInput, Object newInput) {
if (map != null) {
dispose();
}
this.map = (IMap) newInput;
this.viewer = (MapViewer) viewer;
// listen to ProjectNodeCommitEvent
projectNodeListener = new ProjectNodeListener();
EventManager.instance()
.subscribe(
projectNodeListener,
ifType(
ProjectNodeCommittedEvent.class,
ev -> {
ProjectNode src = ev.getEntity(map.belongsTo());
return src instanceof IMap && map.id().equals(src.id())
|| src instanceof ILayer && map.containsLayer((ILayer) src);
// XXX check if structural change or just label changed
}));
// listen to LayerUserSettings#visible
propertyListener = new PropertyListener();
EventManager.instance()
.subscribe(
propertyListener,
ifType(
PropertyChangeEvent.class,
ev -> {
if (ev.getSource() instanceof LayerUserSettings) {
String layerId = ((LayerUserSettings) ev.getSource()).layerId();
return map.layers
.stream()
.filter(l -> l.id().equals(layerId))
.findAny()
.isPresent();
}
return false;
}));
styleListener = new StyleListener();
EventManager.instance()
.subscribe(
styleListener,
ifType(
FeatureStyleCommitedEvent.class,
ev -> {
return map.layers
.stream()
.filter(l -> l.userSettings.get().visible.get())
.filter(l -> Objects.equals(l.styleIdentifier.get(), ev.getSource().id()))
.findAny()
.isPresent();
}));
}
public IStatus execute(final IProgressMonitor monitor, IAdaptable info)
throws ExecutionException {
Display display = (Display) info.getAdapter(Display.class);
// set map extent
try {
monitor.subTask(Messages.get("OpenMapOperation_calcLayersBounds"));
if (map.getLayers().isEmpty()) {
display.asyncExec(
new Runnable() {
public void run() {
MessageBox box = new MessageBox(page.getWorkbenchWindow().getShell());
box.setText(Messages.get("OpenMapOperation_noLayersText"));
box.setMessage(Messages.get("OpenMapOperation_noLayersMsg"));
box.open();
}
});
return Status.CANCEL_STATUS;
}
final ReferencedEnvelope bbox =
map.getMaxExtent() == null
? calcLayersBounds(map.getLayers(), map.getCRS(), monitor)
: map.getMaxExtent();
if (map.getMaxExtent() == null && bbox != null) {
log.info("### No map max extent -> using calculated values: " + bbox);
map.setMaxExtent(bbox);
}
if (bbox == null && !map.getLayers().isEmpty()) {
display.syncExec(
new Runnable() {
public void run() {
MessageBox box = new MessageBox(page.getWorkbenchWindow().getShell());
box.setText(Messages.get("OpenMapOperation_bboxErrorText"));
box.setMessage(Messages.get("OpenMapOperation_bboxErrorMsg"));
box.open();
}
});
} else {
map.setVisible(true);
}
return Status.OK_STATUS;
} catch (Exception e) {
throw new ExecutionException(e.getLocalizedMessage(), e);
}
}
@Override
public void sendContent(
OutputStream out, Range range, Map<String, String> params, String contentType)
throws IOException, BadRequestException {
WorkbenchState state = WorkbenchState.instance(SessionContext.current());
IMap map = state.getMap();
try {
JSONObject json = new JSONObject();
json.put("width", -1);
json.put("height", -1);
ReferencedEnvelope extent = map.getExtent();
json.put("minX", extent.getMinX());
json.put("minY", extent.getMinY());
json.put("maxX", extent.getMaxX());
json.put("maxY", extent.getMaxY());
out.write(json.toString(4).getBytes("UTF-8"));
} catch (JSONException e) {
throw new RuntimeException(e);
}
}
@Override
public void sendContent(
OutputStream out, Range range, final Map<String, String> params, String rContentType)
throws IOException, BadRequestException {
final int width = params.containsKey("width") ? Integer.parseInt(params.get("width")) : 300;
final int height =
params.containsKey("height") ? Integer.parseInt(params.get("height")) : 300;
List<Job> jobs = new ArrayList();
final Map<ILayer, Image> images = new HashMap();
// run jobs for all layers
WorkbenchState state = WorkbenchState.instance(SessionContext.current());
final IMap map = state.getMap();
if (map != null) {
for (final ILayer layer : map.getLayers()) {
if (layer.isVisible()) {
UIJob job =
new UIJob(getClass().getSimpleName() + ": " + layer.getLabel()) {
protected void runWithException(IProgressMonitor monitor) throws Exception {
try {
IGeoResource res = layer.getGeoResource();
if (res == null) {
throw new RuntimeException(
"Unable to find geo resource of layer: " + layer);
}
IService service = res.service(null);
Pipeline pipeline =
pipelineIncubator.newPipeline(
LayerUseCase.IMAGE, layer.getMap(), layer, service);
if (pipeline.length() == 0) {
throw new RuntimeException(
"Unable to build processor pipeline for layer: " + layer);
}
// processor request
GetMapRequest request =
new GetMapRequest(
null, // layers
map.getCRSCode(),
map.getExtent(),
contentType,
width,
height,
-1);
// process request
pipeline.process(
request,
new ResponseHandler() {
public void handle(ProcessorResponse pipeResponse) throws Exception {
Image image = ((ImageResponse) pipeResponse).getImage();
images.put(layer, image);
}
});
} catch (Exception e) {
// XXX put a special image in the map
log.warn("", e);
images.put(layer, null);
throw e;
}
}
};
jobs.add(job);
job.schedule();
}
}
// join jobs
for (Job job : jobs) {
try {
job.join();
} catch (InterruptedException e) {
// XXX put a special image in the map
log.warn("", e);
}
}
}
// put images together (MapContext order)
Graphics2D g = null;
try {
// create image
BufferedImage result = new BufferedImage(width, height, BufferedImage.TYPE_4BYTE_ABGR);
g = result.createGraphics();
// rendering hints
RenderingHints hints =
new RenderingHints(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
hints.add(
new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON));
hints.add(
new RenderingHints(
RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON));
g.setRenderingHints(hints);
if (map == null) {
g.setFont(new Font("Serif", Font.PLAIN, 14));
g.setColor(Color.RED);
g.drawString("Melden Sie sich in der Workbench an, um hier eine Karte zu sehen!", 50, 50);
}
// FIXME honor layer.getOrderKey()
for (Map.Entry<ILayer, Image> entry : images.entrySet()) {
int rule = AlphaComposite.SRC_OVER;
float alpha = ((float) entry.getKey().getOpacity()) / 100;
g.setComposite(AlphaComposite.getInstance(rule, alpha));
g.drawImage(entry.getValue(), 0, 0, null);
}
// encode image
encodeImage(result, out);
} finally {
if (g != null) {
g.dispose();
}
}
}
public OpenMapOperation(IMap map, IWorkbenchPage page) {
super(Messages.get("OpenMapOperation_titlePrefix") + map.getLabel());
this.map = map;
this.page = page;
}
