source: josm/trunk/src/org/openstreetmap/josm/data/ImageData.java@ 17574

Last change on this file since 17574 was 17574, checked in by Don-vip, 3 years ago

fix #20598 - Update the bucket with the new bbox (patch by taylor.smock)
  • Property svn:eol-style set to native
File size: 10.9 KB
Line 
1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.data;
3
4import static org.openstreetmap.josm.tools.I18n.tr;
5
6import java.util.ArrayList;
7import java.util.Collection;
8import java.util.Collections;
9import java.util.List;
10import java.util.stream.Collectors;
11
12import org.openstreetmap.josm.data.coor.LatLon;
13import org.openstreetmap.josm.data.gpx.GpxImageEntry;
14import org.openstreetmap.josm.data.osm.QuadBuckets;
15import org.openstreetmap.josm.gui.layer.geoimage.ImageEntry;
16import org.openstreetmap.josm.tools.ListenerList;
17
18/**
19 * Class to hold {@link ImageEntry} and the current selection
20 * @since 14590
21 */
22public class ImageData implements Data {
23 /**
24 * A listener that is informed when the current selection change
25 */
26 public interface ImageDataUpdateListener {
27 /**
28 * Called when the data change
29 * @param data the image data
30 */
31 void imageDataUpdated(ImageData data);
32
33 /**
34 * Called when the selection change
35 * @param data the image data
36 */
37 void selectedImageChanged(ImageData data);
38 }
39
40 private final List<ImageEntry> data;
41
42 private final List<Integer> selectedImagesIndex = new ArrayList<>();
43
44 private final ListenerList<ImageDataUpdateListener> listeners = ListenerList.create();
45 private final QuadBuckets<ImageEntry> geoImages = new QuadBuckets<>();
46
47 /**
48 * Construct a new image container without images
49 */
50 public ImageData() {
51 this(null);
52 }
53
54 /**
55 * Construct a new image container with a list of images
56 * @param data the list of {@link ImageEntry}
57 */
58 public ImageData(List<ImageEntry> data) {
59 if (data != null) {
60 Collections.sort(data);
61 this.data = data;
62 } else {
63 this.data = new ArrayList<>();
64 }
65 this.geoImages.addAll(this.data);
66 data.forEach(image -> image.setDataSet(this));
67 selectedImagesIndex.add(-1);
68 }
69
70 /**
71 * Returns the images
72 * @return the images
73 */
74 public List<ImageEntry> getImages() {
75 return data;
76 }
77
78 /**
79 * Determines if one image has modified GPS data.
80 * @return {@code true} if data has been modified; {@code false}, otherwise
81 */
82 public boolean isModified() {
83 return data.stream().anyMatch(GpxImageEntry::hasNewGpsData);
84 }
85
86 /**
87 * Merge 2 ImageData
88 * @param otherData {@link ImageData} to merge
89 */
90 public void mergeFrom(ImageData otherData) {
91 data.addAll(otherData.getImages());
92 this.geoImages.addAll(otherData.getImages());
93 Collections.sort(data);
94
95 final ImageEntry selected = otherData.getSelectedImage();
96
97 // Suppress the double photos.
98 if (data.size() > 1) {
99 ImageEntry prev = data.get(data.size() - 1);
100 for (int i = data.size() - 2; i >= 0; i--) {
101 ImageEntry cur = data.get(i);
102 if (cur.getFile().equals(prev.getFile())) {
103 data.remove(i);
104 } else {
105 prev = cur;
106 }
107 }
108 }
109 if (selected != null) {
110 setSelectedImageIndex(data.indexOf(selected));
111 }
112 }
113
114 /**
115 * Return the first currently selected image
116 * @return the first selected image as {@link ImageEntry} or null
117 * @see #getSelectedImages
118 */
119 public ImageEntry getSelectedImage() {
120 int selectedImageIndex = selectedImagesIndex.isEmpty() ? -1 : selectedImagesIndex.get(0);
121 if (selectedImageIndex > -1) {
122 return data.get(selectedImageIndex);
123 }
124 return null;
125 }
126
127 /**
128 * Return the current selected images
129 * @return the selected images as list {@link ImageEntry}
130 * @since 15333
131 */
132 public List<ImageEntry> getSelectedImages() {
133 return selectedImagesIndex.stream().filter(i -> i > -1).map(data::get).collect(Collectors.toList());
134 }
135
136 /**
137 * Select the first image of the sequence
138 */
139 public void selectFirstImage() {
140 if (!data.isEmpty()) {
141 setSelectedImageIndex(0);
142 }
143 }
144
145 /**
146 * Select the last image of the sequence
147 */
148 public void selectLastImage() {
149 setSelectedImageIndex(data.size() - 1);
150 }
151
152 /**
153 * Check if there is a next image in the sequence
154 * @return {@code true} is there is a next image, {@code false} otherwise
155 */
156 public boolean hasNextImage() {
157 return (selectedImagesIndex.size() == 1 && selectedImagesIndex.get(0) != data.size() - 1);
158 }
159
160 /**
161 * Search for images in a bounds
162 * @param bounds The bounds to search
163 * @return images in the bounds
164 * @since 17459
165 */
166 public Collection<ImageEntry> searchImages(Bounds bounds) {
167 return this.geoImages.search(bounds.toBBox());
168 }
169
170 /**
171 * Select the next image of the sequence
172 */
173 public void selectNextImage() {
174 if (hasNextImage()) {
175 setSelectedImageIndex(selectedImagesIndex.get(0) + 1);
176 }
177 }
178
179 /**
180 * Check if there is a previous image in the sequence
181 * @return {@code true} is there is a previous image, {@code false} otherwise
182 */
183 public boolean hasPreviousImage() {
184 return (selectedImagesIndex.size() == 1 && selectedImagesIndex.get(0) - 1 > -1);
185 }
186
187 /**
188 * Select the previous image of the sequence
189 */
190 public void selectPreviousImage() {
191 if (data.isEmpty()) {
192 return;
193 }
194 setSelectedImageIndex(Integer.max(0, selectedImagesIndex.get(0) - 1));
195 }
196
197 /**
198 * Select as the selected the given image
199 * @param image the selected image
200 */
201 public void setSelectedImage(ImageEntry image) {
202 setSelectedImageIndex(data.indexOf(image));
203 }
204
205 /**
206 * Add image to the list of selected images
207 * @param image {@link ImageEntry} the image to add
208 * @since 15333
209 */
210 public void addImageToSelection(ImageEntry image) {
211 int index = data.indexOf(image);
212 if (selectedImagesIndex.get(0) == -1) {
213 setSelectedImage(image);
214 } else if (!selectedImagesIndex.contains(index)) {
215 selectedImagesIndex.add(index);
216 listeners.fireEvent(l -> l.selectedImageChanged(this));
217 }
218 }
219
220 /**
221 * Indicate that a entry has changed
222 * @param gpxImageEntry The entry to update
223 * @since xxx
224 */
225 public void fireNodeMoved(ImageEntry gpxImageEntry) {
226 this.geoImages.remove(gpxImageEntry);
227 this.geoImages.add(gpxImageEntry);
228 }
229
230 /**
231 * Remove the image from the list of selected images
232 * @param image {@link ImageEntry} the image to remove
233 * @since 15333
234 */
235 public void removeImageToSelection(ImageEntry image) {
236 int index = data.indexOf(image);
237 selectedImagesIndex.remove(selectedImagesIndex.indexOf(index));
238 if (selectedImagesIndex.isEmpty()) {
239 selectedImagesIndex.add(-1);
240 }
241 listeners.fireEvent(l -> l.selectedImageChanged(this));
242 }
243
244 /**
245 * Clear the selected image(s)
246 */
247 public void clearSelectedImage() {
248 setSelectedImageIndex(-1);
249 }
250
251 private void setSelectedImageIndex(int index) {
252 setSelectedImageIndex(index, false);
253 }
254
255 private void setSelectedImageIndex(int index, boolean forceTrigger) {
256 if (selectedImagesIndex.size() > 1) {
257 selectedImagesIndex.clear();
258 selectedImagesIndex.add(-1);
259 }
260 if (index == selectedImagesIndex.get(0) && !forceTrigger) {
261 return;
262 }
263 selectedImagesIndex.set(0, index);
264 listeners.fireEvent(l -> l.selectedImageChanged(this));
265 }
266
267 /**
268 * Remove the current selected image from the list
269 */
270 public void removeSelectedImage() {
271 List<ImageEntry> selectedImages = getSelectedImages();
272 if (selectedImages.size() > 1) {
273 throw new IllegalStateException(tr("Multiple images have been selected"));
274 }
275 removeImages(selectedImages);
276 }
277
278 /**
279 * Remove the current selected image from the list
280 * @since 15348
281 */
282 public void removeSelectedImages() {
283 List<ImageEntry> selectedImages = getSelectedImages();
284 removeImages(selectedImages);
285 }
286
287 private void removeImages(List<ImageEntry> selectedImages) {
288 if (selectedImages.isEmpty()) {
289 return;
290 }
291 for (ImageEntry img: getSelectedImages()) {
292 data.remove(img);
293 this.geoImages.remove(img);
294 }
295 if (selectedImagesIndex.get(0) >= data.size()) {
296 setSelectedImageIndex(data.size() - 1);
297 } else {
298 setSelectedImageIndex(selectedImagesIndex.get(0), true);
299 }
300 }
301
302 /**
303 * Determines if the image is selected
304 * @param image the {@link ImageEntry} image
305 * @return {@code true} is the image is selected, {@code false} otherwise
306 * @since 15333
307 */
308 public boolean isImageSelected(ImageEntry image) {
309 int index = data.indexOf(image);
310 return selectedImagesIndex.contains(index);
311 }
312
313 /**
314 * Remove the image from the list and trigger update listener
315 * @param img the {@link ImageEntry} to remove
316 */
317 public void removeImage(ImageEntry img) {
318 data.remove(img);
319 this.geoImages.remove(img);
320 notifyImageUpdate();
321 }
322
323 /**
324 * Update the position of the image and trigger update
325 * @param img the image to update
326 * @param newPos the new position
327 */
328 public void updateImagePosition(ImageEntry img, LatLon newPos) {
329 img.setPos(newPos);
330 this.geoImages.remove(img);
331 this.geoImages.add(img);
332 afterImageUpdated(img);
333 }
334
335 /**
336 * Update the image direction of the image and trigger update
337 * @param img the image to update
338 * @param direction the new direction
339 */
340 public void updateImageDirection(ImageEntry img, double direction) {
341 img.setExifImgDir(direction);
342 afterImageUpdated(img);
343 }
344
345 /**
346 * Manually trigger the {@link ImageDataUpdateListener#imageDataUpdated(ImageData)}
347 */
348 public void notifyImageUpdate() {
349 listeners.fireEvent(l -> l.imageDataUpdated(this));
350 }
351
352 private void afterImageUpdated(ImageEntry img) {
353 img.flagNewGpsData();
354 notifyImageUpdate();
355 }
356
357 /**
358 * Add a listener that listens to image data changes
359 * @param listener the {@link ImageDataUpdateListener}
360 */
361 public void addImageDataUpdateListener(ImageDataUpdateListener listener) {
362 listeners.addListener(listener);
363 }
364
365 /**
366 * Removes a listener that listens to image data changes
367 * @param listener The listener
368 */
369 public void removeImageDataUpdateListener(ImageDataUpdateListener listener) {
370 listeners.removeListener(listener);
371 }
372
373 @Override
374 public Collection<DataSource> getDataSources() {
375 return Collections.emptyList();
376 }
377}
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