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);
}
}
// 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);
}
}
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));
}
}