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authorJörg Frings-Fürst <debian@jff.email>2018-09-30 14:09:20 +0200
committerJörg Frings-Fürst <debian@jff.email>2018-09-30 14:09:20 +0200
commit5e9f4eea451a77ba3b93db3747841ed2bd969e9f (patch)
tree75046a38ca68975261d853a2e56ff7bf6b3e1daa /src/faces/FaceLocation.vala
parent18b52c2983a1b3409011f72d27f15de576c5eb1c (diff)
New upstream version 0.30.1upstream/0.30.1
Diffstat (limited to 'src/faces/FaceLocation.vala')
-rw-r--r--src/faces/FaceLocation.vala209
1 files changed, 209 insertions, 0 deletions
diff --git a/src/faces/FaceLocation.vala b/src/faces/FaceLocation.vala
new file mode 100644
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--- /dev/null
+++ b/src/faces/FaceLocation.vala
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+/* Copyright 2016 Software Freedom Conservancy Inc.
+ *
+ * This software is licensed under the GNU Lesser General Public License
+ * (version 2.1 or later). See the COPYING file in this distribution.
+ */
+
+#if ENABLE_FACES
+
+public class FaceLocation : Object {
+
+ private static Gee.Map<FaceID?, Gee.Map<PhotoID?, FaceLocation>> face_photos_map;
+ private static Gee.Map<PhotoID?, Gee.Map<FaceID?, FaceLocation>> photo_faces_map;
+
+ private FaceLocationID face_location_id;
+ private FaceID face_id;
+ private PhotoID photo_id;
+ private string geometry;
+
+ private FaceLocation(FaceLocationID face_location_id, FaceID face_id, PhotoID photo_id,
+ string geometry) {
+ this.face_location_id = face_location_id;
+ this.face_id = face_id;
+ this.photo_id = photo_id;
+ this.geometry = geometry;
+ }
+
+ public static FaceLocation create(FaceID face_id, PhotoID photo_id, string geometry) {
+ FaceLocation face_location = null;
+
+ // Test if that FaceLocation already exists (that face in that photo) ...
+ Gee.Map<PhotoID?, FaceLocation> photos_map = face_photos_map.get(face_id);
+ Gee.Map<FaceID?, FaceLocation> faces_map = photo_faces_map.get(photo_id);
+
+ if (photos_map != null && faces_map != null && faces_map.has_key(face_id)) {
+
+ face_location = faces_map.get(face_id);
+
+ if (face_location.get_serialized_geometry() != geometry) {
+ face_location.set_serialized_geometry(geometry);
+
+ try {
+ FaceLocationTable.get_instance().update_face_location_serialized_geometry(
+ face_location);
+ } catch (DatabaseError err) {
+ AppWindow.database_error(err);
+ }
+ }
+
+ return face_location;
+ }
+
+ // ... or create a new FaceLocation.
+ try {
+ face_location =
+ FaceLocation.add_from_row(
+ FaceLocationTable.get_instance().add(face_id, photo_id, geometry));
+ } catch (DatabaseError err) {
+ AppWindow.database_error(err);
+ }
+
+ return face_location;
+ }
+
+ public static void destroy(FaceID face_id, PhotoID photo_id) {
+ Gee.Map<PhotoID?, FaceLocation> photos_map = face_photos_map.get(face_id);
+ Gee.Map<FaceID?, FaceLocation> faces_map = photo_faces_map.get(photo_id);
+
+ assert(photos_map != null);
+ assert(faces_map != null);
+
+ faces_map.unset(face_id);
+ if (faces_map.size == 0)
+ photo_faces_map.unset(photo_id);
+
+ photos_map.unset(photo_id);
+ if (photos_map.size == 0)
+ face_photos_map.unset(face_id);
+
+ try {
+ FaceLocationTable.get_instance().remove_face_from_source(face_id, photo_id);
+ } catch (DatabaseError err) {
+ AppWindow.database_error(err);
+ }
+ }
+
+ public static FaceLocation add_from_row(FaceLocationRow row) {
+
+ FaceLocation face_location =
+ new FaceLocation(row.face_location_id, row.face_id, row.photo_id, row.geometry);
+
+ Gee.Map<PhotoID?, FaceLocation> photos_map = face_photos_map.get(row.face_id);
+ if (photos_map == null) {photos_map = new Gee.HashMap<PhotoID?, FaceLocation>
+ ((Gee.HashDataFunc)FaceLocation.photo_id_hash, (Gee.EqualDataFunc)FaceLocation.photo_ids_equal);
+ face_photos_map.set(row.face_id, photos_map);
+ }
+ photos_map.set(row.photo_id, face_location);
+
+ Gee.Map<FaceID?, FaceLocation> faces_map = photo_faces_map.get(row.photo_id);
+ if (faces_map == null) {faces_map = new Gee.HashMap<FaceID?, FaceLocation>
+ ((Gee.HashDataFunc)FaceLocation.face_id_hash, (Gee.EqualDataFunc)FaceLocation.face_ids_equal);
+
+ photo_faces_map.set(row.photo_id, faces_map);
+ }
+ faces_map.set(row.face_id, face_location);
+
+ return face_location;
+ }
+
+ public static Gee.Map<FaceID?, FaceLocation>? get_locations_by_photo(Photo photo) {
+ return photo_faces_map.get(photo.get_photo_id());
+ }
+
+ public static Gee.Map<PhotoID?, FaceLocation>? get_locations_by_face(Face face) {
+ return face_photos_map.get(face.get_face_id());
+ }
+
+ public static Gee.Set<PhotoID?>? get_photo_ids_by_face(Face face) {
+ Gee.Map<PhotoID?, FaceLocation>? photos_map = face_photos_map.get(face.get_face_id());
+ if (photos_map == null)
+ return null;
+
+ return photos_map.keys;
+ }
+
+ public static FaceLocation? get_face_location(FaceID face_id, PhotoID photo_id) {
+ Gee.Map<FaceID?, FaceLocation>? faces_map = photo_faces_map.get(photo_id);
+ if (faces_map == null)
+ return null;
+
+ return faces_map.get(face_id);
+ }
+
+ public static bool photo_ids_equal(void *a, void *b) {
+ PhotoID *aid = (PhotoID *) a;
+ PhotoID *bid = (PhotoID *) b;
+
+ return aid->id == bid->id;
+ }
+
+ public static bool face_ids_equal(void *a, void *b) {
+ FaceID *aid = (FaceID *) a;
+ FaceID *bid = (FaceID *) b;
+
+ return aid->id == bid->id;
+ }
+
+ public static uint photo_id_hash(void *p) {
+ // Rotating XOR hash
+ uint8 u8 = (uint8) ((PhotoID *) p)->id;
+ uint hash = 0;
+ for (int ctr = 0; ctr < (sizeof(int64) / sizeof(uint8)); ctr++) {
+ hash = (hash << 4) ^ (hash >> 28) ^ (u8++);
+ }
+
+ return hash;
+ }
+
+ public static uint face_id_hash(void *p) {
+ // Rotating XOR hash
+ uint8 u8 = (uint8) ((FaceID *) p)->id;
+ uint hash = 0;
+ for (int ctr = 0; ctr < (sizeof(int64) / sizeof(uint8)); ctr++) {
+ hash = (hash << 4) ^ (hash >> 28) ^ (u8++);
+ }
+
+ return hash;
+ }
+
+ public static void init(ProgressMonitor? monitor) {
+ face_photos_map = new Gee.HashMap<FaceID?, Gee.HashMap<PhotoID?, FaceLocation>>
+ ((Gee.HashDataFunc)face_id_hash, (Gee.EqualDataFunc)face_ids_equal);
+ photo_faces_map = new Gee.HashMap<PhotoID?, Gee.HashMap<FaceID?, FaceLocation>>
+ ((Gee.HashDataFunc)photo_id_hash, (Gee.EqualDataFunc)photo_ids_equal);
+
+ // scoop up all the rows at once
+ Gee.List<FaceLocationRow?> rows = null;
+ try {
+ rows = FaceLocationTable.get_instance().get_all_rows();
+ } catch (DatabaseError err) {
+ AppWindow.database_error(err);
+ }
+
+ // turn them into FaceLocation objects
+ int count = rows.size;
+ for (int ctr = 0; ctr < count; ctr++) {
+ FaceLocation.add_from_row(rows.get(ctr));
+
+ if (monitor != null)
+ monitor(ctr, count);
+ }
+ }
+
+ public static void terminate() {
+ }
+
+ public FaceLocationID get_face_location_id() {
+ return face_location_id;
+ }
+
+ public string get_serialized_geometry() {
+ return geometry;
+ }
+
+ private void set_serialized_geometry(string geometry) {
+ this.geometry = geometry;
+ }
+}
+
+#endif