1 | // License: GPL. See LICENSE file for details.
|
---|
2 | package org.openstreetmap.josm.gui.layer.geoimage;
|
---|
3 |
|
---|
4 | import static org.openstreetmap.josm.tools.I18n.tr;
|
---|
5 |
|
---|
6 | import java.awt.Color;
|
---|
7 | import java.awt.Dimension;
|
---|
8 | import java.awt.FontMetrics;
|
---|
9 | import java.awt.Graphics;
|
---|
10 | import java.awt.Graphics2D;
|
---|
11 | import java.awt.Image;
|
---|
12 | import java.awt.MediaTracker;
|
---|
13 | import java.awt.Point;
|
---|
14 | import java.awt.Rectangle;
|
---|
15 | import java.awt.Toolkit;
|
---|
16 | import java.awt.event.MouseEvent;
|
---|
17 | import java.awt.event.MouseListener;
|
---|
18 | import java.awt.event.MouseMotionListener;
|
---|
19 | import java.awt.event.MouseWheelEvent;
|
---|
20 | import java.awt.event.MouseWheelListener;
|
---|
21 | import java.awt.geom.AffineTransform;
|
---|
22 | import java.awt.geom.Rectangle2D;
|
---|
23 | import java.awt.image.BufferedImage;
|
---|
24 | import java.io.File;
|
---|
25 |
|
---|
26 | import javax.swing.JComponent;
|
---|
27 |
|
---|
28 | import org.openstreetmap.josm.Main;
|
---|
29 | import org.openstreetmap.josm.tools.ExifReader;
|
---|
30 |
|
---|
31 | public class ImageDisplay extends JComponent {
|
---|
32 |
|
---|
33 | /** The file that is currently displayed */
|
---|
34 | private File file = null;
|
---|
35 |
|
---|
36 | /** The image currently displayed */
|
---|
37 | private Image image = null;
|
---|
38 |
|
---|
39 | /** The image currently displayed */
|
---|
40 | private boolean errorLoading = false;
|
---|
41 |
|
---|
42 | /** The rectangle (in image coordinates) of the image that is visible. This rectangle is calculated
|
---|
43 | * each time the zoom is modified */
|
---|
44 | private Rectangle visibleRect = null;
|
---|
45 |
|
---|
46 | /** When a selection is done, the rectangle of the selection (in image coordinates) */
|
---|
47 | private Rectangle selectedRect = null;
|
---|
48 |
|
---|
49 | /** The tracker to load the images */
|
---|
50 | private MediaTracker tracker = new MediaTracker(this);
|
---|
51 |
|
---|
52 | private String osdText = null;
|
---|
53 |
|
---|
54 | private static final int DRAG_BUTTON = Main.pref.getBoolean("geoimage.agpifo-style-drag-and-zoom", false) ? 1 : 3;
|
---|
55 | private static final int ZOOM_BUTTON = DRAG_BUTTON == 1 ? 3 : 1;
|
---|
56 |
|
---|
57 | /** The thread that reads the images. */
|
---|
58 | private class LoadImageRunnable implements Runnable {
|
---|
59 |
|
---|
60 | private File file;
|
---|
61 | private int orientation;
|
---|
62 |
|
---|
63 | public LoadImageRunnable(File file, Integer orientation) {
|
---|
64 | this.file = file;
|
---|
65 | this.orientation = orientation == null ? -1 : orientation;
|
---|
66 | }
|
---|
67 |
|
---|
68 | @Override
|
---|
69 | public void run() {
|
---|
70 | Image img = Toolkit.getDefaultToolkit().createImage(file.getPath());
|
---|
71 | tracker.addImage(img, 1);
|
---|
72 |
|
---|
73 | // Wait for the end of loading
|
---|
74 | while (! tracker.checkID(1, true)) {
|
---|
75 | if (this.file != ImageDisplay.this.file) {
|
---|
76 | // The file has changed
|
---|
77 | tracker.removeImage(img);
|
---|
78 | return;
|
---|
79 | }
|
---|
80 | try {
|
---|
81 | Thread.sleep(5);
|
---|
82 | } catch (InterruptedException e) {
|
---|
83 | Main.warn("InterruptedException in "+getClass().getSimpleName()+" while loading image "+file.getPath());
|
---|
84 | }
|
---|
85 | }
|
---|
86 |
|
---|
87 | boolean error = tracker.isErrorID(1);
|
---|
88 | if (img.getWidth(null) < 0 || img.getHeight(null) < 0) {
|
---|
89 | error = true;
|
---|
90 | }
|
---|
91 |
|
---|
92 | synchronized(ImageDisplay.this) {
|
---|
93 | if (this.file != ImageDisplay.this.file) {
|
---|
94 | // The file has changed
|
---|
95 | tracker.removeImage(img);
|
---|
96 | return;
|
---|
97 | }
|
---|
98 |
|
---|
99 | if (!error) {
|
---|
100 | ImageDisplay.this.image = img;
|
---|
101 | visibleRect = new Rectangle(0, 0, img.getWidth(null), img.getHeight(null));
|
---|
102 |
|
---|
103 | final int w = (int) visibleRect.getWidth();
|
---|
104 | final int h = (int) visibleRect.getHeight();
|
---|
105 |
|
---|
106 | if (ExifReader.orientationNeedsCorrection(orientation)) {
|
---|
107 | final int hh, ww;
|
---|
108 | if (ExifReader.orientationSwitchesDimensions(orientation)) {
|
---|
109 | ww = h;
|
---|
110 | hh = w;
|
---|
111 | } else {
|
---|
112 | ww = w;
|
---|
113 | hh = h;
|
---|
114 | }
|
---|
115 | final BufferedImage rot = new BufferedImage(ww, hh, BufferedImage.TYPE_INT_RGB);
|
---|
116 | final AffineTransform xform = ExifReader.getRestoreOrientationTransform(orientation, w, h);
|
---|
117 | final Graphics2D g = rot.createGraphics();
|
---|
118 | g.drawImage(image, xform, null);
|
---|
119 | g.dispose();
|
---|
120 |
|
---|
121 | visibleRect.setSize(ww, hh);
|
---|
122 | image.flush();
|
---|
123 | ImageDisplay.this.image = rot;
|
---|
124 | }
|
---|
125 | }
|
---|
126 |
|
---|
127 | selectedRect = null;
|
---|
128 | errorLoading = error;
|
---|
129 | }
|
---|
130 | tracker.removeImage(img);
|
---|
131 | ImageDisplay.this.repaint();
|
---|
132 | }
|
---|
133 | }
|
---|
134 |
|
---|
135 | private class ImgDisplayMouseListener implements MouseListener, MouseWheelListener, MouseMotionListener {
|
---|
136 |
|
---|
137 | boolean mouseIsDragging = false;
|
---|
138 | long lastTimeForMousePoint = 0L;
|
---|
139 | Point mousePointInImg = null;
|
---|
140 |
|
---|
141 | /** Zoom in and out, trying to preserve the point of the image that was under the mouse cursor
|
---|
142 | * at the same place */
|
---|
143 | @Override
|
---|
144 | public void mouseWheelMoved(MouseWheelEvent e) {
|
---|
145 | File file;
|
---|
146 | Image image;
|
---|
147 | Rectangle visibleRect;
|
---|
148 |
|
---|
149 | synchronized (ImageDisplay.this) {
|
---|
150 | file = ImageDisplay.this.file;
|
---|
151 | image = ImageDisplay.this.image;
|
---|
152 | visibleRect = ImageDisplay.this.visibleRect;
|
---|
153 | }
|
---|
154 |
|
---|
155 | mouseIsDragging = false;
|
---|
156 | selectedRect = null;
|
---|
157 |
|
---|
158 | if (image == null)
|
---|
159 | return;
|
---|
160 |
|
---|
161 | // Calculate the mouse cursor position in image coordinates, so that we can center the zoom
|
---|
162 | // on that mouse position.
|
---|
163 | // To avoid issues when the user tries to zoom in on the image borders, this point is not calculated
|
---|
164 | // again if there was less than 1.5seconds since the last event.
|
---|
165 | if (e.getWhen() - lastTimeForMousePoint > 1500 || mousePointInImg == null) {
|
---|
166 | lastTimeForMousePoint = e.getWhen();
|
---|
167 | mousePointInImg = comp2imgCoord(visibleRect, e.getX(), e.getY());
|
---|
168 | }
|
---|
169 |
|
---|
170 | // Applicate the zoom to the visible rectangle in image coordinates
|
---|
171 | if (e.getWheelRotation() > 0) {
|
---|
172 | visibleRect.width = visibleRect.width * 3 / 2;
|
---|
173 | visibleRect.height = visibleRect.height * 3 / 2;
|
---|
174 | } else {
|
---|
175 | visibleRect.width = visibleRect.width * 2 / 3;
|
---|
176 | visibleRect.height = visibleRect.height * 2 / 3;
|
---|
177 | }
|
---|
178 |
|
---|
179 | // Check that the zoom doesn't exceed 2:1
|
---|
180 | if (visibleRect.width < getSize().width / 2) {
|
---|
181 | visibleRect.width = getSize().width / 2;
|
---|
182 | }
|
---|
183 | if (visibleRect.height < getSize().height / 2) {
|
---|
184 | visibleRect.height = getSize().height / 2;
|
---|
185 | }
|
---|
186 |
|
---|
187 | // Set the same ratio for the visible rectangle and the display area
|
---|
188 | int hFact = visibleRect.height * getSize().width;
|
---|
189 | int wFact = visibleRect.width * getSize().height;
|
---|
190 | if (hFact > wFact) {
|
---|
191 | visibleRect.width = hFact / getSize().height;
|
---|
192 | } else {
|
---|
193 | visibleRect.height = wFact / getSize().width;
|
---|
194 | }
|
---|
195 |
|
---|
196 | // The size of the visible rectangle is limited by the image size.
|
---|
197 | checkVisibleRectSize(image, visibleRect);
|
---|
198 |
|
---|
199 | // Set the position of the visible rectangle, so that the mouse cursor doesn't move on the image.
|
---|
200 | Rectangle drawRect = calculateDrawImageRectangle(visibleRect);
|
---|
201 | visibleRect.x = mousePointInImg.x + ((drawRect.x - e.getX()) * visibleRect.width) / drawRect.width;
|
---|
202 | visibleRect.y = mousePointInImg.y + ((drawRect.y - e.getY()) * visibleRect.height) / drawRect.height;
|
---|
203 |
|
---|
204 | // The position is also limited by the image size
|
---|
205 | checkVisibleRectPos(image, visibleRect);
|
---|
206 |
|
---|
207 | synchronized(ImageDisplay.this) {
|
---|
208 | if (ImageDisplay.this.file == file) {
|
---|
209 | ImageDisplay.this.visibleRect = visibleRect;
|
---|
210 | }
|
---|
211 | }
|
---|
212 | ImageDisplay.this.repaint();
|
---|
213 | }
|
---|
214 |
|
---|
215 | /** Center the display on the point that has been clicked */
|
---|
216 | @Override
|
---|
217 | public void mouseClicked(MouseEvent e) {
|
---|
218 | // Move the center to the clicked point.
|
---|
219 | File file;
|
---|
220 | Image image;
|
---|
221 | Rectangle visibleRect;
|
---|
222 |
|
---|
223 | synchronized (ImageDisplay.this) {
|
---|
224 | file = ImageDisplay.this.file;
|
---|
225 | image = ImageDisplay.this.image;
|
---|
226 | visibleRect = ImageDisplay.this.visibleRect;
|
---|
227 | }
|
---|
228 |
|
---|
229 | if (image == null)
|
---|
230 | return;
|
---|
231 |
|
---|
232 | if (e.getButton() != DRAG_BUTTON)
|
---|
233 | return;
|
---|
234 |
|
---|
235 | // Calculate the translation to set the clicked point the center of the view.
|
---|
236 | Point click = comp2imgCoord(visibleRect, e.getX(), e.getY());
|
---|
237 | Point center = getCenterImgCoord(visibleRect);
|
---|
238 |
|
---|
239 | visibleRect.x += click.x - center.x;
|
---|
240 | visibleRect.y += click.y - center.y;
|
---|
241 |
|
---|
242 | checkVisibleRectPos(image, visibleRect);
|
---|
243 |
|
---|
244 | synchronized(ImageDisplay.this) {
|
---|
245 | if (ImageDisplay.this.file == file) {
|
---|
246 | ImageDisplay.this.visibleRect = visibleRect;
|
---|
247 | }
|
---|
248 | }
|
---|
249 | ImageDisplay.this.repaint();
|
---|
250 | }
|
---|
251 |
|
---|
252 | /** Initialize the dragging, either with button 1 (simple dragging) or button 3 (selection of
|
---|
253 | * a picture part) */
|
---|
254 | @Override
|
---|
255 | public void mousePressed(MouseEvent e) {
|
---|
256 | if (image == null) {
|
---|
257 | mouseIsDragging = false;
|
---|
258 | selectedRect = null;
|
---|
259 | return;
|
---|
260 | }
|
---|
261 |
|
---|
262 | Image image;
|
---|
263 | Rectangle visibleRect;
|
---|
264 |
|
---|
265 | synchronized (ImageDisplay.this) {
|
---|
266 | image = ImageDisplay.this.image;
|
---|
267 | visibleRect = ImageDisplay.this.visibleRect;
|
---|
268 | }
|
---|
269 |
|
---|
270 | if (image == null)
|
---|
271 | return;
|
---|
272 |
|
---|
273 | if (e.getButton() == DRAG_BUTTON) {
|
---|
274 | mousePointInImg = comp2imgCoord(visibleRect, e.getX(), e.getY());
|
---|
275 | mouseIsDragging = true;
|
---|
276 | selectedRect = null;
|
---|
277 | } else if (e.getButton() == ZOOM_BUTTON) {
|
---|
278 | mousePointInImg = comp2imgCoord(visibleRect, e.getX(), e.getY());
|
---|
279 | checkPointInVisibleRect(mousePointInImg, visibleRect);
|
---|
280 | mouseIsDragging = false;
|
---|
281 | selectedRect = new Rectangle(mousePointInImg.x, mousePointInImg.y, 0, 0);
|
---|
282 | ImageDisplay.this.repaint();
|
---|
283 | } else {
|
---|
284 | mouseIsDragging = false;
|
---|
285 | selectedRect = null;
|
---|
286 | }
|
---|
287 | }
|
---|
288 |
|
---|
289 | @Override
|
---|
290 | public void mouseDragged(MouseEvent e) {
|
---|
291 | if (! mouseIsDragging && selectedRect == null)
|
---|
292 | return;
|
---|
293 |
|
---|
294 | File file;
|
---|
295 | Image image;
|
---|
296 | Rectangle visibleRect;
|
---|
297 |
|
---|
298 | synchronized (ImageDisplay.this) {
|
---|
299 | file = ImageDisplay.this.file;
|
---|
300 | image = ImageDisplay.this.image;
|
---|
301 | visibleRect = ImageDisplay.this.visibleRect;
|
---|
302 | }
|
---|
303 |
|
---|
304 | if (image == null) {
|
---|
305 | mouseIsDragging = false;
|
---|
306 | selectedRect = null;
|
---|
307 | return;
|
---|
308 | }
|
---|
309 |
|
---|
310 | if (mouseIsDragging) {
|
---|
311 | Point p = comp2imgCoord(visibleRect, e.getX(), e.getY());
|
---|
312 | visibleRect.x += mousePointInImg.x - p.x;
|
---|
313 | visibleRect.y += mousePointInImg.y - p.y;
|
---|
314 | checkVisibleRectPos(image, visibleRect);
|
---|
315 | synchronized(ImageDisplay.this) {
|
---|
316 | if (ImageDisplay.this.file == file) {
|
---|
317 | ImageDisplay.this.visibleRect = visibleRect;
|
---|
318 | }
|
---|
319 | }
|
---|
320 | ImageDisplay.this.repaint();
|
---|
321 |
|
---|
322 | } else if (selectedRect != null) {
|
---|
323 | Point p = comp2imgCoord(visibleRect, e.getX(), e.getY());
|
---|
324 | checkPointInVisibleRect(p, visibleRect);
|
---|
325 | Rectangle rect = new Rectangle(
|
---|
326 | (p.x < mousePointInImg.x ? p.x : mousePointInImg.x),
|
---|
327 | (p.y < mousePointInImg.y ? p.y : mousePointInImg.y),
|
---|
328 | (p.x < mousePointInImg.x ? mousePointInImg.x - p.x : p.x - mousePointInImg.x),
|
---|
329 | (p.y < mousePointInImg.y ? mousePointInImg.y - p.y : p.y - mousePointInImg.y));
|
---|
330 | checkVisibleRectSize(image, rect);
|
---|
331 | checkVisibleRectPos(image, rect);
|
---|
332 | ImageDisplay.this.selectedRect = rect;
|
---|
333 | ImageDisplay.this.repaint();
|
---|
334 | }
|
---|
335 |
|
---|
336 | }
|
---|
337 |
|
---|
338 | @Override
|
---|
339 | public void mouseReleased(MouseEvent e) {
|
---|
340 | if (! mouseIsDragging && selectedRect == null)
|
---|
341 | return;
|
---|
342 |
|
---|
343 | File file;
|
---|
344 | Image image;
|
---|
345 |
|
---|
346 | synchronized (ImageDisplay.this) {
|
---|
347 | file = ImageDisplay.this.file;
|
---|
348 | image = ImageDisplay.this.image;
|
---|
349 | }
|
---|
350 |
|
---|
351 | if (image == null) {
|
---|
352 | mouseIsDragging = false;
|
---|
353 | selectedRect = null;
|
---|
354 | return;
|
---|
355 | }
|
---|
356 |
|
---|
357 | if (mouseIsDragging) {
|
---|
358 | mouseIsDragging = false;
|
---|
359 |
|
---|
360 | } else if (selectedRect != null) {
|
---|
361 | int oldWidth = selectedRect.width;
|
---|
362 | int oldHeight = selectedRect.height;
|
---|
363 |
|
---|
364 | // Check that the zoom doesn't exceed 2:1
|
---|
365 | if (selectedRect.width < getSize().width / 2) {
|
---|
366 | selectedRect.width = getSize().width / 2;
|
---|
367 | }
|
---|
368 | if (selectedRect.height < getSize().height / 2) {
|
---|
369 | selectedRect.height = getSize().height / 2;
|
---|
370 | }
|
---|
371 |
|
---|
372 | // Set the same ratio for the visible rectangle and the display area
|
---|
373 | int hFact = selectedRect.height * getSize().width;
|
---|
374 | int wFact = selectedRect.width * getSize().height;
|
---|
375 | if (hFact > wFact) {
|
---|
376 | selectedRect.width = hFact / getSize().height;
|
---|
377 | } else {
|
---|
378 | selectedRect.height = wFact / getSize().width;
|
---|
379 | }
|
---|
380 |
|
---|
381 | // Keep the center of the selection
|
---|
382 | if (selectedRect.width != oldWidth) {
|
---|
383 | selectedRect.x -= (selectedRect.width - oldWidth) / 2;
|
---|
384 | }
|
---|
385 | if (selectedRect.height != oldHeight) {
|
---|
386 | selectedRect.y -= (selectedRect.height - oldHeight) / 2;
|
---|
387 | }
|
---|
388 |
|
---|
389 | checkVisibleRectSize(image, selectedRect);
|
---|
390 | checkVisibleRectPos(image, selectedRect);
|
---|
391 |
|
---|
392 | synchronized (ImageDisplay.this) {
|
---|
393 | if (file == ImageDisplay.this.file) {
|
---|
394 | ImageDisplay.this.visibleRect = selectedRect;
|
---|
395 | }
|
---|
396 | }
|
---|
397 | selectedRect = null;
|
---|
398 | ImageDisplay.this.repaint();
|
---|
399 | }
|
---|
400 | }
|
---|
401 |
|
---|
402 | @Override
|
---|
403 | public void mouseEntered(MouseEvent e) {
|
---|
404 | }
|
---|
405 |
|
---|
406 | @Override
|
---|
407 | public void mouseExited(MouseEvent e) {
|
---|
408 | }
|
---|
409 |
|
---|
410 | @Override
|
---|
411 | public void mouseMoved(MouseEvent e) {
|
---|
412 | }
|
---|
413 |
|
---|
414 | private void checkPointInVisibleRect(Point p, Rectangle visibleRect) {
|
---|
415 | if (p.x < visibleRect.x) {
|
---|
416 | p.x = visibleRect.x;
|
---|
417 | }
|
---|
418 | if (p.x > visibleRect.x + visibleRect.width) {
|
---|
419 | p.x = visibleRect.x + visibleRect.width;
|
---|
420 | }
|
---|
421 | if (p.y < visibleRect.y) {
|
---|
422 | p.y = visibleRect.y;
|
---|
423 | }
|
---|
424 | if (p.y > visibleRect.y + visibleRect.height) {
|
---|
425 | p.y = visibleRect.y + visibleRect.height;
|
---|
426 | }
|
---|
427 | }
|
---|
428 | }
|
---|
429 |
|
---|
430 | public ImageDisplay() {
|
---|
431 | ImgDisplayMouseListener mouseListener = new ImgDisplayMouseListener();
|
---|
432 | addMouseListener(mouseListener);
|
---|
433 | addMouseWheelListener(mouseListener);
|
---|
434 | addMouseMotionListener(mouseListener);
|
---|
435 | }
|
---|
436 |
|
---|
437 | public void setImage(File file, Integer orientation) {
|
---|
438 | synchronized(this) {
|
---|
439 | this.file = file;
|
---|
440 | image = null;
|
---|
441 | selectedRect = null;
|
---|
442 | errorLoading = false;
|
---|
443 | }
|
---|
444 | repaint();
|
---|
445 | if (file != null) {
|
---|
446 | new Thread(new LoadImageRunnable(file, orientation)).start();
|
---|
447 | }
|
---|
448 | }
|
---|
449 |
|
---|
450 | public void setOsdText(String text) {
|
---|
451 | this.osdText = text;
|
---|
452 | repaint();
|
---|
453 | }
|
---|
454 |
|
---|
455 | @Override
|
---|
456 | public void paintComponent(Graphics g) {
|
---|
457 | Image image;
|
---|
458 | File file;
|
---|
459 | Rectangle visibleRect;
|
---|
460 | boolean errorLoading;
|
---|
461 |
|
---|
462 | synchronized(this) {
|
---|
463 | image = this.image;
|
---|
464 | file = this.file;
|
---|
465 | visibleRect = this.visibleRect;
|
---|
466 | errorLoading = this.errorLoading;
|
---|
467 | }
|
---|
468 |
|
---|
469 | if (file == null) {
|
---|
470 | g.setColor(Color.black);
|
---|
471 | String noImageStr = tr("No image");
|
---|
472 | Rectangle2D noImageSize = g.getFontMetrics(g.getFont()).getStringBounds(noImageStr, g);
|
---|
473 | Dimension size = getSize();
|
---|
474 | g.drawString(noImageStr,
|
---|
475 | (int) ((size.width - noImageSize.getWidth()) / 2),
|
---|
476 | (int) ((size.height - noImageSize.getHeight()) / 2));
|
---|
477 | } else if (image == null) {
|
---|
478 | g.setColor(Color.black);
|
---|
479 | String loadingStr;
|
---|
480 | if (! errorLoading) {
|
---|
481 | loadingStr = tr("Loading {0}", file.getName());
|
---|
482 | } else {
|
---|
483 | loadingStr = tr("Error on file {0}", file.getName());
|
---|
484 | }
|
---|
485 | Rectangle2D noImageSize = g.getFontMetrics(g.getFont()).getStringBounds(loadingStr, g);
|
---|
486 | Dimension size = getSize();
|
---|
487 | g.drawString(loadingStr,
|
---|
488 | (int) ((size.width - noImageSize.getWidth()) / 2),
|
---|
489 | (int) ((size.height - noImageSize.getHeight()) / 2));
|
---|
490 | } else {
|
---|
491 | Rectangle target = calculateDrawImageRectangle(visibleRect);
|
---|
492 | g.drawImage(image,
|
---|
493 | target.x, target.y, target.x + target.width, target.y + target.height,
|
---|
494 | visibleRect.x, visibleRect.y, visibleRect.x + visibleRect.width, visibleRect.y + visibleRect.height,
|
---|
495 | null);
|
---|
496 | if (selectedRect != null) {
|
---|
497 | Point topLeft = img2compCoord(visibleRect, selectedRect.x, selectedRect.y);
|
---|
498 | Point bottomRight = img2compCoord(visibleRect,
|
---|
499 | selectedRect.x + selectedRect.width,
|
---|
500 | selectedRect.y + selectedRect.height);
|
---|
501 | g.setColor(new Color(128, 128, 128, 180));
|
---|
502 | g.fillRect(target.x, target.y, target.width, topLeft.y - target.y);
|
---|
503 | g.fillRect(target.x, target.y, topLeft.x - target.x, target.height);
|
---|
504 | g.fillRect(bottomRight.x, target.y, target.x + target.width - bottomRight.x, target.height);
|
---|
505 | g.fillRect(target.x, bottomRight.y, target.width, target.y + target.height - bottomRight.y);
|
---|
506 | g.setColor(Color.black);
|
---|
507 | g.drawRect(topLeft.x, topLeft.y, bottomRight.x - topLeft.x, bottomRight.y - topLeft.y);
|
---|
508 | }
|
---|
509 | if (errorLoading) {
|
---|
510 | String loadingStr = tr("Error on file {0}", file.getName());
|
---|
511 | Rectangle2D noImageSize = g.getFontMetrics(g.getFont()).getStringBounds(loadingStr, g);
|
---|
512 | Dimension size = getSize();
|
---|
513 | g.drawString(loadingStr,
|
---|
514 | (int) ((size.width - noImageSize.getWidth()) / 2),
|
---|
515 | (int) ((size.height - noImageSize.getHeight()) / 2));
|
---|
516 | }
|
---|
517 | if (osdText != null) {
|
---|
518 | FontMetrics metrics = g.getFontMetrics(g.getFont());
|
---|
519 | int ascent = metrics.getAscent();
|
---|
520 | Color bkground = new Color(255, 255, 255, 128);
|
---|
521 | int lastPos = 0;
|
---|
522 | int pos = osdText.indexOf('\n');
|
---|
523 | int x = 3;
|
---|
524 | int y = 3;
|
---|
525 | String line;
|
---|
526 | while (pos > 0) {
|
---|
527 | line = osdText.substring(lastPos, pos);
|
---|
528 | Rectangle2D lineSize = metrics.getStringBounds(line, g);
|
---|
529 | g.setColor(bkground);
|
---|
530 | g.fillRect(x, y, (int) lineSize.getWidth(), (int) lineSize.getHeight());
|
---|
531 | g.setColor(Color.black);
|
---|
532 | g.drawString(line, x, y + ascent);
|
---|
533 | y += (int) lineSize.getHeight();
|
---|
534 | lastPos = pos + 1;
|
---|
535 | pos = osdText.indexOf('\n', lastPos);
|
---|
536 | }
|
---|
537 |
|
---|
538 | line = osdText.substring(lastPos);
|
---|
539 | Rectangle2D lineSize = g.getFontMetrics(g.getFont()).getStringBounds(line, g);
|
---|
540 | g.setColor(bkground);
|
---|
541 | g.fillRect(x, y, (int) lineSize.getWidth(), (int) lineSize.getHeight());
|
---|
542 | g.setColor(Color.black);
|
---|
543 | g.drawString(line, x, y + ascent);
|
---|
544 | }
|
---|
545 | }
|
---|
546 | }
|
---|
547 |
|
---|
548 | private final Point img2compCoord(Rectangle visibleRect, int xImg, int yImg) {
|
---|
549 | Rectangle drawRect = calculateDrawImageRectangle(visibleRect);
|
---|
550 | return new Point(drawRect.x + ((xImg - visibleRect.x) * drawRect.width) / visibleRect.width,
|
---|
551 | drawRect.y + ((yImg - visibleRect.y) * drawRect.height) / visibleRect.height);
|
---|
552 | }
|
---|
553 |
|
---|
554 | private final Point comp2imgCoord(Rectangle visibleRect, int xComp, int yComp) {
|
---|
555 | Rectangle drawRect = calculateDrawImageRectangle(visibleRect);
|
---|
556 | return new Point(visibleRect.x + ((xComp - drawRect.x) * visibleRect.width) / drawRect.width,
|
---|
557 | visibleRect.y + ((yComp - drawRect.y) * visibleRect.height) / drawRect.height);
|
---|
558 | }
|
---|
559 |
|
---|
560 | private final Point getCenterImgCoord(Rectangle visibleRect) {
|
---|
561 | return new Point(visibleRect.x + visibleRect.width / 2,
|
---|
562 | visibleRect.y + visibleRect.height / 2);
|
---|
563 | }
|
---|
564 |
|
---|
565 | private Rectangle calculateDrawImageRectangle(Rectangle visibleRect) {
|
---|
566 | return calculateDrawImageRectangle(visibleRect, new Rectangle(0, 0, getSize().width, getSize().height));
|
---|
567 | }
|
---|
568 |
|
---|
569 | /**
|
---|
570 | * calculateDrawImageRectangle
|
---|
571 | *
|
---|
572 | * @param imgRect the part of the image that should be drawn (in image coordinates)
|
---|
573 | * @param compRect the part of the component where the image should be drawn (in component coordinates)
|
---|
574 | * @return the part of compRect with the same width/height ratio as the image
|
---|
575 | */
|
---|
576 | static Rectangle calculateDrawImageRectangle(Rectangle imgRect, Rectangle compRect) {
|
---|
577 | int x, y, w, h;
|
---|
578 | x = 0;
|
---|
579 | y = 0;
|
---|
580 | w = compRect.width;
|
---|
581 | h = compRect.height;
|
---|
582 |
|
---|
583 | int wFact = w * imgRect.height;
|
---|
584 | int hFact = h * imgRect.width;
|
---|
585 | if (wFact != hFact) {
|
---|
586 | if (wFact > hFact) {
|
---|
587 | w = hFact / imgRect.height;
|
---|
588 | x = (compRect.width - w) / 2;
|
---|
589 | } else {
|
---|
590 | h = wFact / imgRect.width;
|
---|
591 | y = (compRect.height - h) / 2;
|
---|
592 | }
|
---|
593 | }
|
---|
594 | return new Rectangle(x + compRect.x, y + compRect.y, w, h);
|
---|
595 | }
|
---|
596 |
|
---|
597 | public void zoomBestFitOrOne() {
|
---|
598 | File file;
|
---|
599 | Image image;
|
---|
600 | Rectangle visibleRect;
|
---|
601 |
|
---|
602 | synchronized (this) {
|
---|
603 | file = ImageDisplay.this.file;
|
---|
604 | image = ImageDisplay.this.image;
|
---|
605 | visibleRect = ImageDisplay.this.visibleRect;
|
---|
606 | }
|
---|
607 |
|
---|
608 | if (image == null)
|
---|
609 | return;
|
---|
610 |
|
---|
611 | if (visibleRect.width != image.getWidth(null) || visibleRect.height != image.getHeight(null)) {
|
---|
612 | // The display is not at best fit. => Zoom to best fit
|
---|
613 | visibleRect = new Rectangle(0, 0, image.getWidth(null), image.getHeight(null));
|
---|
614 |
|
---|
615 | } else {
|
---|
616 | // The display is at best fit => zoom to 1:1
|
---|
617 | Point center = getCenterImgCoord(visibleRect);
|
---|
618 | visibleRect = new Rectangle(center.x - getWidth() / 2, center.y - getHeight() / 2,
|
---|
619 | getWidth(), getHeight());
|
---|
620 | checkVisibleRectPos(image, visibleRect);
|
---|
621 | }
|
---|
622 |
|
---|
623 | synchronized(this) {
|
---|
624 | if (file == this.file) {
|
---|
625 | this.visibleRect = visibleRect;
|
---|
626 | }
|
---|
627 | }
|
---|
628 | repaint();
|
---|
629 | }
|
---|
630 |
|
---|
631 | private final void checkVisibleRectPos(Image image, Rectangle visibleRect) {
|
---|
632 | if (visibleRect.x < 0) {
|
---|
633 | visibleRect.x = 0;
|
---|
634 | }
|
---|
635 | if (visibleRect.y < 0) {
|
---|
636 | visibleRect.y = 0;
|
---|
637 | }
|
---|
638 | if (visibleRect.x + visibleRect.width > image.getWidth(null)) {
|
---|
639 | visibleRect.x = image.getWidth(null) - visibleRect.width;
|
---|
640 | }
|
---|
641 | if (visibleRect.y + visibleRect.height > image.getHeight(null)) {
|
---|
642 | visibleRect.y = image.getHeight(null) - visibleRect.height;
|
---|
643 | }
|
---|
644 | }
|
---|
645 |
|
---|
646 | private void checkVisibleRectSize(Image image, Rectangle visibleRect) {
|
---|
647 | if (visibleRect.width > image.getWidth(null)) {
|
---|
648 | visibleRect.width = image.getWidth(null);
|
---|
649 | }
|
---|
650 | if (visibleRect.height > image.getHeight(null)) {
|
---|
651 | visibleRect.height = image.getHeight(null);
|
---|
652 | }
|
---|
653 | }
|
---|
654 | }
|
---|