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 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);
}
}
}
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 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);
}
}