/**
* First checks if the user clicked the right mouse button, and if they did then rotate the
* selected image referencing tool.
*
* <p>Otherwise it returns true if the combination of buttons and modifiers are legal with a
* left-mouse-click.
*
* @param e
* @return
*/
protected boolean validModifierButtonCombo(MapMouseEvent e) {
if (e.buttons == MapMouseEvent.BUTTON3) {
GeoReferenceUtils.rotateToNextTool(MoveMarkersTool.TOOLID);
return false;
}
return e.buttons == MapMouseEvent.BUTTON1 && !(e.modifiersDown());
}
@Override
public void mousePressed(MapMouseEvent e) {
// valid button = left click.
if (!(e.button == MapMouseEvent.BUTTON1)) {
return;
}
Point point = e.getPoint();
broadcastCoordinate(point, InputEvent.MOUSE_DOWN);
}
public void mouseReleased(MapMouseEvent e) {
if (getContext().getMapLayers().size() == 0) return;
FeatureIterator<SimpleFeature> reader = null;
try {
ILayer layer = getContext().getEditManager().getSelectedLayer();
if (layer == null) layer = getContext().getMapLayers().get(0);
if (layer == null) throw new Exception("No layers in map"); // $NON-NLS-1$
Envelope env = getContext().getBoundingBox(e.getPoint(), 6);
FeatureCollection<SimpleFeatureType, SimpleFeature> results =
getContext().getFeaturesInBbox(layer, env);
reader = results.features();
final boolean found = !reader.hasNext();
getContext()
.updateUI(
new Runnable() {
public void run() {
if (getContext().getActionBars() == null) return;
IStatusLineManager bar = getContext().getActionBars().getStatusLineManager();
if (bar != null) {
if (found) bar.setErrorMessage(Messages.DeleteTool_warning);
else bar.setErrorMessage(null);
}
}
});
if (found) return;
SimpleFeature feature = reader.next();
MapCommand deleteFeatureCommand =
getContext().getEditFactory().createDeleteFeature(feature, layer);
getContext().sendASyncCommand(deleteFeatureCommand);
getContext().getViewportPane().repaint();
} catch (Exception e1) {
EditPlugin.log(null, e1);
} finally {
try {
if (reader != null) reader.close();
} catch (Exception e2) {
EditPlugin.log(null, e2);
}
draw.setValid(false); // get us off the draw stack for context.getViewportPane().repaint();
getContext().getViewportPane().repaint();
}
}
/**
* Gets a feature iterator on the results of a BBox query. BBox is used because intersects
* occasionally throws a Side-conflict error so it is not a good query.
*
* <p>However maybe a better way is to try intersects then if that fails do a bbox? For now we do
* bbox and test it with intersects
*
* @return Pair of an option containing the first feature if it exists, and an iterator with the
* rest
*/
private FeatureIterator<SimpleFeature> getFeatureIterator() throws IOException {
ILayer editLayer = parameters.handler.getEditLayer();
FeatureStore<SimpleFeatureType, SimpleFeature> store = getResource(editLayer);
// transforms the bbox to the layer crs
ReferencedEnvelope bbox = handler.getContext().getBoundingBox(event.getPoint(), SEARCH_SIZE);
try {
bbox = bbox.transform(parameters.handler.getEditLayer().getCRS(), true);
} catch (TransformException e) {
logTransformationWarning(e);
} catch (FactoryException e) {
logTransformationWarning(e);
}
// creates a bbox filter using the bbox in the layer crs and grabs the features present in this
// bbox
Filter createBBoxFilter = createBBoxFilter(bbox, editLayer, filterType);
FeatureCollection<SimpleFeatureType, SimpleFeature> collection =
store.getFeatures(createBBoxFilter);
FeatureIterator<SimpleFeature> reader =
new IntersectTestingIterator(bbox, collection.features());
return reader;
}
/**
* @see
* net.refractions.udig.project.ui.tool.AbstractTool#mousePressed(net.refractions.udig.project.render.displayAdapter.MapMouseEvent)
*/
public void mousePressed(MapMouseEvent e) {
// validate the mouse click (only left mouse clicks should work for dragging)
if (!validModifierButtonCombo(e)) {
return;
}
// set the active objects and also force a redraw of
// the composed map image before panning so that we can
// remove the placemarker being dragged
List<ILayer> mapLayers = getContext().getMap().getMapLayers();
Iterator<ILayer> iterator = mapLayers.iterator();
while (iterator.hasNext()) {
ILayer layer = iterator.next();
GeoReferenceMapGraphic mapGraphic;
try {
mapGraphic = layer.getResource(GeoReferenceMapGraphic.class, null);
if (mapGraphic != null) {
activeMapGraphic = mapGraphic;
GlassPane glass = getContext().getViewportPane().getGlass();
if (glass instanceof GeoReferenceGlassPane) {
activeGlassPane = (GeoReferenceGlassPane) glass;
}
layer.refresh(null); // refresh to ensure the selected graphic disappears
break;
}
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
// determine if the user clicked on a placemarker or not. If multiple
// placemarkers are clicked on, choose the closest one to the click
draggingPlaceMarker = null;
if (activeMapGraphic != null) {
Point point = e.getPoint();
List<PlaceMarker> imageMarkers = activeMapGraphic.getImageMarkers();
List<PlaceMarker> basemapMarkers = activeMapGraphic.getBasemapMarkers();
if (imageMarkers == null || imageMarkers.size() < 1) {
return;
}
double currentdistance = PlaceMarker.DRAWING_SIZE + 1;
for (PlaceMarker marker : imageMarkers) {
Point markerPoint = marker.getPoint();
if (markerPoint != null) {
double distance = point.distance(markerPoint.x, markerPoint.y);
if (distance <= PlaceMarker.DRAWING_SIZE && distance < currentdistance) {
draggingPlaceMarker = marker;
currentdistance = distance;
}
}
}
// check basemap markers if we haven't matched one yet
if (draggingPlaceMarker == null && basemapMarkers != null) {
for (PlaceMarker marker : basemapMarkers) {
// compare the map coordinate not the screen point since
// the screen point could be out of whack if the user
// panned/zoomed the map
Coordinate markerCoord = marker.getCoord();
if (markerCoord != null) {
Point markerPoint = getContext().worldToPixel(markerCoord);
if (markerPoint != null) {
double distance = point.distance(markerPoint.x, markerPoint.y);
if (distance <= PlaceMarker.DRAWING_SIZE && distance < currentdistance) {
draggingPlaceMarker = marker;
currentdistance = distance;
}
}
}
}
}
}
// did we find a marker?
if (draggingPlaceMarker == null) {
return;
}
// marker found, set dragging vars
dragging = true;
draggingPlaceMarker.setDragging(true);
mouseStart = e.getPoint();
if (activeGlassPane != null && draggingPlaceMarker != null) {
Point point = null;
if (draggingPlaceMarker.isBasemapMarker() && draggingPlaceMarker.getCoord() != null) {
point = getContext().worldToPixel(draggingPlaceMarker.getCoord());
} else {
point = draggingPlaceMarker.getPoint();
}
activeGlassPane.startDraggingMarker(draggingPlaceMarker, point.x, point.y);
}
}
@Override
public void mouseMoved(MapMouseEvent e) {
Point point = e.getPoint();
broadcastCoordinate(point, InputEvent.MOUSE_DRAG);
}