public Canvas getViewPanel() {
VLayout layout = new VLayout();
layout.setWidth100();
layout.setHeight100();
// Map with ID mapGeoTools is defined in the XML configuration. (mapGeoTools.xml)
final MapWidget map = new MapWidget("mapGeoTools", "appGeoTools");
// Select the layer, so we can also create features !
map.getMapModel()
.runWhenInitialized(
new Runnable() {
@Override
public void run() {
// select to create new features
map.getMapModel().getLayer("clientLayerCountriesGeoTools").setSelected(true);
}
});
// Set a panning controller on the map:
map.setController(new PanController(map));
// Create a tool-bar for this map:
final Toolbar toolbar = new Toolbar(map);
toolbar.setButtonSize(WidgetLayout.toolbarLargeButtonSize);
layout.addMember(toolbar);
layout.addMember(map);
return layout;
}
@Override
public void accept(PainterVisitor visitor, Object group, Bbox bounds, boolean recursive) {
if (googleMap != null) {
String sourceCrs = map.getMapModel().getCrs();
if (isGoogleProjection(sourceCrs)) {
int zoomLevel = calcZoomLevel(map.getMapModel().getMapView().getCurrentScale());
Coordinate latLon = convertToLatLon(bounds.getCenterPoint());
fitGoogleMapBounds(googleMap, latLon, zoomLevel);
} else {
// transform on server
TransformGeometryRequest request = new TransformGeometryRequest();
request.setBounds(
new org.geomajas.geometry.Bbox(
bounds.getX(), bounds.getY(), bounds.getWidth(), bounds.getHeight()));
request.setSourceCrs(map.getMapModel().getCrs());
request.setTargetCrs(EPSG_3857);
GwtCommand command = new GwtCommand(TransformGeometryRequest.COMMAND);
command.setCommandRequest(request);
GwtCommandDispatcher.getInstance()
.execute(
command,
new AbstractCommandCallback<TransformGeometryResponse>() {
public void execute(TransformGeometryResponse response) {
Bbox google = new Bbox(response.getBounds());
int zoomLevel = calcZoomLevelFromBounds(google);
fitGoogleMapBounds(
googleMap, convertToLatLon(google.getCenterPoint()), zoomLevel);
}
});
}
}
}
private void draw(Geometry geometry) {
org.geomajas.gwt.client.spatial.geometry.Geometry transformed =
mapWidget
.getMapModel()
.getMapView()
.getWorldViewTransformer()
.worldToPan(GeometryConverter.toGwt(geometry));
GraphicsContext graphics = mapWidget.getVectorContext();
graphics.drawGroup(mapWidget.getGroup(RenderGroup.VECTOR), geometry);
if (transformed instanceof MultiPolygon) {
draw(geometry, null, (MultiPolygon) transformed, graphics);
} else if (transformed instanceof MultiPoint) {
draw(geometry, null, (MultiPoint) transformed, graphics);
} else if (transformed instanceof MultiLineString) {
draw(geometry, null, (MultiLineString) transformed, graphics);
} else if (transformed instanceof Polygon) {
draw(geometry, null, (Polygon) transformed, graphics);
} else if (transformed instanceof LineString) {
draw(geometry, null, (LineString) transformed, graphics);
} else if (transformed instanceof Point) {
draw(geometry, null, (Point) transformed, graphics);
}
}
public void setVisible(boolean visible) {
if (visible) {
mapWidget.getVectorContext().hide(editingService.getGeometry());
} else {
mapWidget.getVectorContext().unhide(editingService.getGeometry());
}
}
private void updateEdge(Geometry geometry, GeometryIndex index, boolean bringToFront)
throws GeometryIndexNotFoundException {
// Some initialization:
String identifier = baseName + "." + editingService.getIndexService().format(index);
Object parentGroup =
groups.get(identifier.substring(0, identifier.lastIndexOf('.')) + ".edges");
Coordinate[] c = editingService.getIndexService().getEdge(geometry, index);
LineString temp = mapWidget.getMapModel().getGeometryFactory().createLineString(c);
LineString edge =
(LineString)
mapWidget.getMapModel().getMapView().getWorldViewTransformer().worldToPan(temp);
mapWidget.getVectorContext().drawLine(parentGroup, identifier, edge, findEdgeStyle(index));
}
@Override
public void accept(PainterVisitor visitor, Object group, Bbox bounds, boolean recursive) {
map.getVectorContext().drawGroup(group, this);
adjustScale(map.getMapModel().getMapView().getCurrentScale());
// Draw a dummy at 0,0 so that Internet Explorer knows where coordinate 0,0 is. If this is not
// drawn, the text
// will disappear, because the parent group will have coordinate 0,0 at the upper left corner of
// the union of
// all the rectangles that are drawn here.
map.getVectorContext()
.drawRectangle(this, dummy.getId(), dummy.getBounds(), (ShapeStyle) dummy.getStyle());
map.getVectorContext()
.drawRectangle(this, backGround.getId(), backGround.getBounds(), backGround.getStyle());
map.getVectorContext()
.drawRectangle(this, bottomLine.getId(), bottomLine.getBounds(), bottomLine.getStyle());
map.getVectorContext()
.drawRectangle(this, leftMarker.getId(), leftMarker.getBounds(), leftMarker.getStyle());
map.getVectorContext()
.drawRectangle(this, rightMarker.getId(), rightMarker.getBounds(), rightMarker.getStyle());
map.getVectorContext()
.drawText(
this,
distance.getId(),
distance.getContent(),
distance.getPosition(),
distance.getStyle());
}
private void updateVertex(Geometry geometry, GeometryIndex index, boolean moveToBack)
throws GeometryIndexNotFoundException {
// Some initialization:
String identifier = baseName + "." + editingService.getIndexService().format(index);
Composite parentGroup =
groups.get(identifier.substring(0, identifier.lastIndexOf('.')) + ".vertices");
Coordinate temp = editingService.getIndexService().getVertex(geometry, index);
Coordinate coordinate =
mapWidget.getMapModel().getMapView().getWorldViewTransformer().worldToPan(temp);
addShapeToGraphicsContext(
mapWidget.getVectorContext(), parentGroup, identifier, coordinate, findVertexStyle(index));
if (moveToBack) {
mapWidget.getVectorContext().moveToBack(parentGroup, identifier);
}
}
private void draw(
Object parentGroup,
GeometryIndex parentIndex,
LinearRing linearRing,
GraphicsContext graphics) {
String groupName = baseName;
if (parentIndex != null) {
groupName += "." + editingService.getIndexService().format(parentIndex);
}
Composite edgeGroup = getOrCreateGroup(parentGroup, groupName + ".edges");
Composite vertexGroup = getOrCreateGroup(parentGroup, groupName + ".vertices");
Coordinate[] coordinates = linearRing.getCoordinates();
if (coordinates != null) {
// Check if we have to draw the background as well (if there are controllers defined for it):
GraphicsController controller = createGeometryController(parentIndex);
if (controller != null) {
Polygon polygon =
mapWidget.getMapModel().getGeometryFactory().createPolygon(linearRing, null);
graphics.drawPolygon(parentGroup, groupName + ".background", polygon, new ShapeStyle());
graphics.setController(parentGroup, groupName + ".background", controller);
}
// Draw individual edges:
int max = coordinates.length;
if (!styleService.isCloseRingWhileInserting()
&& editingService.getEditingState() == GeometryEditState.INSERTING
&& editingService
.getIndexService()
.isChildOf(parentIndex, editingService.getInsertIndex())) {
max--;
}
for (int i = 1; i < max; i++) {
GeometryIndex edgeIndex =
editingService
.getIndexService()
.addChildren(parentIndex, GeometryIndexType.TYPE_EDGE, i - 1);
String identifier = baseName + "." + editingService.getIndexService().format(edgeIndex);
LineString edge =
linearRing
.getGeometryFactory()
.createLineString(new Coordinate[] {coordinates[i - 1], coordinates[i]});
graphics.drawLine(edgeGroup, identifier, edge, findEdgeStyle(edgeIndex));
graphics.setController(edgeGroup, identifier, createEdgeController(edgeIndex));
}
addInivisibleShapeToGraphicsContext(graphics, vertexGroup);
for (int i = 0; i < coordinates.length - 1; i++) {
GeometryIndex vertexIndex =
editingService
.getIndexService()
.addChildren(parentIndex, GeometryIndexType.TYPE_VERTEX, i);
String identifier = baseName + "." + editingService.getIndexService().format(vertexIndex);
addShapeToGraphicsContext(
graphics, vertexGroup, identifier, coordinates[i], findVertexStyle(vertexIndex));
graphics.setController(vertexGroup, identifier, createVertexController(vertexIndex));
}
}
}
public void onGeometryEditStart(GeometryEditStartEvent event) {
// Also look at the map for changes in the MapView:
mapViewRegistration = mapWidget.getMapModel().getMapView().addMapViewChangedHandler(this);
// Render the geometry on the map:
groups.clear();
draw(event.getGeometry());
}
/**
* Used in creating the "edges", "selection" and "vertices" groups for LineStrings and
* LinearRings.
*/
private Composite getOrCreateGroup(Object parent, String name) {
if (groups.containsKey(name)) {
return groups.get(name);
}
Composite group = new Composite(name);
mapWidget.getVectorContext().drawGroup(parent, group);
groups.put(name, group);
return group;
}
public void onCoordinateSnapAttempt(CoordinateSnapEvent event) {
if (editingService.getEditingState() == GeometryEditState.INSERTING) {
String identifier =
baseName + "." + editingService.getIndexService().format(editingService.getInsertIndex());
Object parentGroup =
groups.get(identifier.substring(0, identifier.lastIndexOf('.')) + ".vertices");
Coordinate temp = event.getTo();
Coordinate coordinate =
mapWidget.getMapModel().getMapView().getWorldViewTransformer().worldToPan(temp);
addShapeToGraphicsContext(
mapWidget.getVectorContext(),
parentGroup,
identifier,
coordinate,
event.hasSnapped() ? styleService.getVertexSnappedStyle() : new ShapeStyle());
}
}
public void onGeometryEditStop(GeometryEditStopEvent event) {
// Remove the handler that follows changes in the map view:
if (mapViewRegistration != null) {
mapViewRegistration.removeHandler();
mapViewRegistration = null;
}
// Cleanup the geometry from the map:
groups.clear();
mapWidget.getVectorContext().deleteGroup(event.getGeometry());
}
public void onChangeEditingState(GeometryEditChangeStateEvent event) {
switch (event.getEditingState()) {
case DRAGGING:
mapWidget.setCursor(Cursor.MOVE);
break;
case IDLE:
default:
mapWidget.setCursorString(mapWidget.getDefaultCursorString());
redraw();
// Remove the temporary insert move line:
if (editingService.getInsertIndex() != null) {
String id =
baseName
+ "."
+ editingService.getIndexService().format(editingService.getInsertIndex());
Object parentGroup = groups.get(id.substring(0, id.lastIndexOf('.')) + ".edges");
mapWidget.getVectorContext().deleteElement(parentGroup, insertMoveEdgeId1);
mapWidget.getVectorContext().deleteElement(parentGroup, insertMoveEdgeId2);
}
}
}
@Override
public void onDraw() {
if (googleMap == null) {
// create as first child of raster group
map.getRasterContext().drawGroup(null, this);
String id = map.getRasterContext().getId(this);
// move to first position
Element mapDiv = DOM.getElementById(id);
Element rasterGroup =
DOM.getElementById(map.getRasterContext().getId(map.getGroup(RenderGroup.RASTER)));
DOM.insertBefore(DOM.getParent(rasterGroup), mapDiv, rasterGroup);
String graphicsId = map.getVectorContext().getId();
googleMap =
createGoogleMap(
id,
graphicsId,
type.name(),
showMap,
getVerticalMargin(),
getHorizontalMargin(),
getVerticalAlignmentString());
}
}
private void moveTosCopyRight() {
// move the ToS and copyright to the top
// create a div group in the graphics context
if (tosGroup == null) {
String graphicsId = map.getVectorContext().getId();
Element graphics = DOM.getElementById(graphicsId);
tosGroup = DOM.createDiv();
tosGroup.setId(map.getID() + "-googleAddon");
tosGroup.getStyle().setBottom(VERTICAL_MARGIN, Unit.PX);
graphics.appendChild(tosGroup);
UIObject.setVisible(tosGroup, visible);
}
String mapsId = map.getRasterContext().getId(this);
Element gmap = DOM.getElementById(mapsId);
if (gmap.getChildCount() > 0) {
Node baseMap = gmap.getChild(0);
if (baseMap.getChildCount() > 2) {
Node copyright = baseMap.getChild(1);
Node tos = baseMap.getChild(2);
tosGroup.appendChild(copyright);
tosGroup.appendChild(tos);
}
}
}
// TODO make use of the findGeometryStyle method.
private void updateGeometry(Geometry geometry, GeometryIndex index, boolean bringToFront)
throws GeometryIndexNotFoundException {
// Some initialization:
String identifier = baseName + "." + editingService.getIndexService().format(index);
boolean marked = editingService.getIndexStateService().isMarkedForDeletion(index);
// Find current and previous parent groups:
Composite parentGroup =
groups.get(identifier.substring(0, identifier.lastIndexOf('.')) + ".geometries");
// Find the correct style:
ShapeStyle style = new ShapeStyle();
if (marked) {
style = styleService.getBackgroundMarkedForDeletionStyle();
}
// Draw the inner ring:
org.geomajas.gwt.client.spatial.geometry.Geometry transformed =
mapWidget
.getMapModel()
.getMapView()
.getWorldViewTransformer()
.worldToPan(
GeometryConverter.toGwt(
editingService.getIndexService().getGeometry(geometry, index)));
if (transformed instanceof LinearRing) {
Polygon polygon =
mapWidget
.getMapModel()
.getGeometryFactory()
.createPolygon((LinearRing) transformed, null);
mapWidget
.getVectorContext()
.drawPolygon(parentGroup, identifier + ".background", polygon, style);
}
}
/**
* Set the visibility of the Google map.
*
* @param visible
* @since 1.9.0
*/
@Api
public void setVisible(boolean visible) {
this.visible = visible;
if (googleMap != null) {
String mapsId = map.getRasterContext().getId(this);
Element gmap = DOM.getElementById(mapsId);
UIObject.setVisible(gmap, visible);
if (tosGroup != null) {
UIObject.setVisible(tosGroup, visible);
}
if (visible) {
triggerResize(googleMap);
}
}
}
@Override
public void onRemove() {
String id = map.getRasterContext().getId(this);
// Remove the terms of use:
Element element = DOM.getElementById(id + "-googleAddon");
if (element != null) {
Element parent = DOM.getParent(element);
parent.removeChild(element);
}
// Remove the Google map too:
element = DOM.getElementById(id);
if (element != null) {
Element parent = DOM.getParent(element);
parent.removeChild(element);
}
googleMap = null;
}
public void onGeometryEditMove(GeometryEditMoveEvent event) {
// Find the elements that need updating:
Map<GeometryIndex, Boolean> indicesToUpdate = new HashMap<GeometryIndex, Boolean>();
for (GeometryIndex index : event.getIndices()) {
if (!indicesToUpdate.containsKey(index)) {
indicesToUpdate.put(index, false);
if (!Geometry.POINT.equals(editingService.getGeometry().getGeometryType())
&& !Geometry.MULTI_POINT.equals(editingService.getGeometry().getGeometryType())) {
try {
List<GeometryIndex> neighbors = null;
switch (editingService.getIndexService().getType(index)) {
case TYPE_VERTEX:
// Move current vertex to the back. This helps the delete operation.
indicesToUpdate.put(index, true);
neighbors =
editingService.getIndexService().getAdjacentEdges(event.getGeometry(), index);
if (neighbors != null) {
for (GeometryIndex neighborIndex : neighbors) {
if (!indicesToUpdate.containsKey(neighborIndex)) {
indicesToUpdate.put(neighborIndex, false);
}
}
}
neighbors =
editingService
.getIndexService()
.getAdjacentVertices(event.getGeometry(), index);
if (neighbors != null) {
for (GeometryIndex neighborIndex : neighbors) {
if (!indicesToUpdate.containsKey(neighborIndex)) {
indicesToUpdate.put(neighborIndex, false);
}
}
}
break;
case TYPE_EDGE:
neighbors =
editingService
.getIndexService()
.getAdjacentVertices(event.getGeometry(), index);
if (neighbors != null) {
for (GeometryIndex neighborIndex : neighbors) {
if (!indicesToUpdate.containsKey(neighborIndex)) {
indicesToUpdate.put(neighborIndex, false);
}
}
}
break;
default:
}
} catch (GeometryIndexNotFoundException e) {
throw new IllegalStateException(e);
}
}
}
}
// Check if we need to draw the background (nice, but slows down):
if (styleService.getBackgroundStyle() != null
&& styleService.getBackgroundStyle().getFillOpacity() > 0) {
if (event.getGeometry().getGeometryType().equals(Geometry.POLYGON)) {
org.geomajas.gwt.client.spatial.geometry.Geometry transformed =
mapWidget
.getMapModel()
.getMapView()
.getWorldViewTransformer()
.worldToPan(GeometryConverter.toGwt(event.getGeometry()));
mapWidget
.getVectorContext()
.drawPolygon(
groups.get(baseName + ".background"),
"background",
(Polygon) transformed,
styleService.getBackgroundStyle());
} else if (event.getGeometry().getGeometryType().equals(Geometry.MULTI_POLYGON)
&& event.getGeometry().getGeometries() != null) {
for (int i = 0; i < event.getGeometry().getGeometries().length; i++) {
Geometry polygon = event.getGeometry().getGeometries()[i];
org.geomajas.gwt.client.spatial.geometry.Geometry transformed =
mapWidget
.getMapModel()
.getMapView()
.getWorldViewTransformer()
.worldToPan(GeometryConverter.toGwt(polygon));
mapWidget
.getVectorContext()
.drawPolygon(
groups.get(baseName + ".geometry" + i + ".background"),
"background",
(Polygon) transformed,
styleService.getBackgroundStyle());
}
}
}
// Next, redraw the list:
for (GeometryIndex index : indicesToUpdate.keySet()) {
update(event.getGeometry(), index, indicesToUpdate.get(index));
}
}
private int calcZoomLevelFromBounds(Bbox google) {
return calcZoomLevel(map.getWidth() / google.getWidth());
}
public void onTentativeMove(GeometryEditTentativeMoveEvent event) {
try {
Coordinate[] vertices =
editingService
.getIndexService()
.getSiblingVertices(editingService.getGeometry(), editingService.getInsertIndex());
String geometryType =
editingService
.getIndexService()
.getGeometryType(editingService.getGeometry(), editingService.getInsertIndex());
if (vertices != null && Geometry.LINE_STRING.equals(geometryType)) {
String identifier =
baseName
+ "."
+ editingService.getIndexService().format(editingService.getInsertIndex());
Object parentGroup =
groups.get(identifier.substring(0, identifier.lastIndexOf('.')) + ".edges");
Coordinate temp1 = event.getOrigin();
Coordinate temp2 = event.getCurrentPosition();
Coordinate c1 =
mapWidget.getMapModel().getMapView().getWorldViewTransformer().worldToPan(temp1);
Coordinate c2 =
mapWidget.getMapModel().getMapView().getWorldViewTransformer().worldToPan(temp2);
LineString edge =
mapWidget
.getMapModel()
.getGeometryFactory()
.createLineString(new Coordinate[] {c1, c2});
mapWidget
.getVectorContext()
.drawLine(
parentGroup, insertMoveEdgeId1, edge, styleService.getEdgeTentativeMoveStyle());
} else if (vertices != null && Geometry.LINEAR_RING.equals(geometryType)) {
String identifier =
baseName
+ "."
+ editingService.getIndexService().format(editingService.getInsertIndex());
Object parentGroup =
groups.get(identifier.substring(0, identifier.lastIndexOf('.')) + ".edges");
// Line 1
Coordinate temp1 = event.getOrigin();
Coordinate temp2 = event.getCurrentPosition();
Coordinate c1 =
mapWidget.getMapModel().getMapView().getWorldViewTransformer().worldToPan(temp1);
Coordinate c2 =
mapWidget.getMapModel().getMapView().getWorldViewTransformer().worldToPan(temp2);
LineString edge =
mapWidget
.getMapModel()
.getGeometryFactory()
.createLineString(new Coordinate[] {c1, c2});
mapWidget
.getVectorContext()
.drawLine(
parentGroup, insertMoveEdgeId1, edge, styleService.getEdgeTentativeMoveStyle());
// Line 2
if (styleService.isCloseRingWhileInserting()) {
temp1 = vertices[vertices.length - 1];
c1 = mapWidget.getMapModel().getMapView().getWorldViewTransformer().worldToPan(temp1);
edge =
mapWidget
.getMapModel()
.getGeometryFactory()
.createLineString(new Coordinate[] {c1, c2});
mapWidget
.getVectorContext()
.drawLine(
parentGroup, insertMoveEdgeId2, edge, styleService.getEdgeTentativeMoveStyle());
}
}
} catch (GeometryIndexNotFoundException e) {
throw new IllegalStateException(e);
}
}
public void redraw() {
groups.clear();
mapWidget.getVectorContext().deleteGroup(editingService.getGeometry());
draw(editingService.getGeometry());
}
