source: trunk/src/org/expeditee/items/Picture.java@ 1428

Last change on this file since 1428 was 1428, checked in by bln4, 5 years ago

Fixed bug with background color click on images that had been scaled.
File size: 26.6 KB
Line 
1/**
2 * Picture.java
3 * Copyright (C) 2010 New Zealand Digital Library, http://expeditee.org
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18
19package org.expeditee.items;
20
21import java.io.File;
22import java.io.IOException;
23import java.text.DecimalFormat;
24
25import org.apache.commons.cli.CommandLine;
26import org.apache.commons.cli.CommandLineParser;
27import org.apache.commons.cli.GnuParser;
28import org.apache.commons.cli.Options;
29import org.apache.commons.cli.ParseException;
30import org.expeditee.core.Clip;
31import org.expeditee.core.Colour;
32import org.expeditee.core.Dimension;
33import org.expeditee.core.EnforcedClipStack.EnforcedClipKey;
34import org.expeditee.core.Image;
35import org.expeditee.core.Point;
36import org.expeditee.core.Stroke;
37import org.expeditee.core.bounds.AxisAlignedBoxBounds;
38import org.expeditee.core.bounds.PolygonBounds;
39import org.expeditee.encryption.core.EncryptedImage;
40import org.expeditee.encryption.items.surrogates.Label;
41import org.expeditee.encryption.items.surrogates.Label.LabelResult;
42import org.expeditee.gio.EcosystemManager;
43import org.expeditee.gio.GraphicsManager;
44import org.expeditee.gui.DisplayController;
45import org.expeditee.gui.FrameIO;
46import org.expeditee.gui.FrameUtils;
47import org.expeditee.gui.MessageBay;
48
49/**
50 * This class represents an Image loaded from a file which is shown on the
51 * screen. Loading of the Image from disk occurs in the constructor, and takes
52 * approximately one second per mb of the Image file size. <br>
53 * <br>
54 * Currently Supported (Tested) Image formats:<br>
55 * BMP<br>
56 * JPG<br>
57 * GIF<br>
58 * GIF (Animated)<br>
59 * <br>
60 * Currently only the default size of the Image is supported, but future
61 * versions may support scaling.
62 *
63 * @author jdm18
64 *
65 */
66public class Picture extends XRayable {
67
68 public static final String REDACTED_IMAGE_NAME = "expeditee_noise.encrypted";
69
70 private static final float CROPPING_COMPOSITE_ALPHA = 0.5f;
71
72 private static final int MINIMUM_WIDTH = 10;
73
74 public static final int WIDTH = 0;
75
76 public static final int RATIO = 1;
77
78 protected Image _image = null;
79
80 private int _scaleType = RATIO;
81
82 private float _scale = 1.0f;
83
84 // Start of the crop relative to START
85 private Point _cropStart = null;
86
87 // Start of the crop relative to END
88 private Point _cropEnd = null;
89
90 private Point _start = new Point(0, 0);
91
92 private Point _end = new Point(0, 0);
93
94 private double _rotate = 0;
95
96 private boolean _flipX = false;
97 private boolean _flipY = false;
98
99 private boolean _showCropping = false;
100
101 protected Integer _anchorLeft = null;
102 protected Integer _anchorTop = null;
103
104 private String _path = "";
105
106 private String _size = "";
107
108 private String _fileName = null;
109
110 protected Picture(Text source, Image image) {
111 super(source);
112 _image = image;
113
114 refresh();
115
116 if (_image != null) {
117 // Should parsing for minus options also be done?
118 // To be honest, looking at the code, can't really see how _size can be anything but
119 // the empty string at this stage of calling the constructor, although it does have
120 // the 'side' effect of setting other things (such as _start, _end, and _scale)
121 parseSize();
122 }
123 }
124
125 /**
126 * Creates a new Picture from the given path. The ImageObserver is optional
127 * and can be set to NULL. <br>
128 * Note: It is assumed that the file described in path has already been
129 * checked to exist.
130 *
131 * @param source
132 * The Text Item that was used to create this Picture
133 * @param fileName
134 * the name of the file as it should be displayed in the source
135 * text
136 * @param path
137 * The Path of the Image to load from disk.
138 * @param observer
139 * The ImageObserver to assign when painting the Image on the
140 * screen.
141 */
142 public Picture(Text source, String fileName, String path, String size)
143 {
144 super(source);
145 _fileName = fileName;
146 _path = path;
147
148 String size_without_options = parseMinusOptions(size);
149 _size = size_without_options;
150
151 refresh();
152 parseSize();
153 }
154
155 public boolean isNoise() {
156 return _fileName.equals(REDACTED_IMAGE_NAME);
157 }
158
159
160
161 protected String getImageSize() {
162 return _size;
163 }
164
165 protected String parseMinusOptions(String cmd_line) {
166
167 String[] tokens = Text.parseArgsApache(cmd_line);
168
169 // make anything starting with a '-' lowercase
170 for (int i=0; i<tokens.length; i++) {
171 if (tokens[i].startsWith("-")) {
172 tokens[i] = tokens[i].toLowerCase();
173 }
174 }
175
176 // create the command line parser
177 CommandLineParser parser = new GnuParser();
178
179 // create the Options
180 Options options = new Options();
181 options.addOption( "al", "anchorleft", true, "Anchor the vertical left-hand edge of the interactive widget to the value provided " );
182 options.addOption( "at", "anchortop", true, "Anchor the vertical top edge of the interactive widget to the value provided " );
183
184 CommandLine core_line;
185 try {
186 // parse the command line arguments
187 core_line = parser.parse( options, tokens );
188
189 // Update tokens to be version with the options removed
190 tokens = core_line.getArgs();
191
192 }
193 catch( ParseException exp ) {
194 System.err.println( "Unexpected exception:" + exp.getMessage() );
195 core_line = null;
196
197 }
198
199 // Apply any anchor values supplied
200
201 if(core_line.hasOption( "anchorleft" ) ) {
202 String al_str = core_line.getOptionValue( "anchorleft" );
203
204 _anchorLeft = Integer.parseInt(al_str);
205 }
206
207 if(core_line.hasOption( "anchortop" ) ) {
208 String at_str = core_line.getOptionValue( "anchortop" );
209
210 _anchorTop = Integer.parseInt(at_str);
211 }
212
213
214 return String.join(" ", tokens);
215 }
216 protected void parseSize() {
217 String size = getImageSize();
218
219 if (_end.getX() != 0 || _end.getY() != 0)
220 return;
221
222 // set the default values for start and end
223 _start.set(0, 0);
224 if (_image == null)
225 _end.set(0, 0);
226 else
227 _end.set(_image.getWidth(), _image.getHeight());
228 size = size.trim();
229 String sizeLower = size.toLowerCase();
230 String[] values = size.split("\\s+");
231 // Now get the cropping values if there are any
232 try {
233 if (values.length > 2) {
234 int startX = Integer.parseInt(values[1]);
235 int startY = Integer.parseInt(values[2]);
236 _start = new Point(startX, startY);
237 if (values.length > 4) {
238 int endX = Integer.parseInt(values[3]);
239 int endY = Integer.parseInt(values[4]);
240 _end = new Point(endX, endY);
241 }
242 scaleCrop();
243 }
244 } catch (Exception e) {
245 }
246
247 if(sizeLower.contains("flipx")) {
248 _flipX = true;
249 }
250
251 if(sizeLower.contains("flipy")) {
252 _flipY = true;
253 }
254
255 int index = sizeLower.indexOf("rotation=");
256 if(index != -1) {
257 int tmp = sizeLower.indexOf(" ", index);
258 String rotation;
259 if(tmp == -1) {
260 rotation = sizeLower.substring(index + "rotation=".length());
261 } else {
262 rotation = sizeLower.substring(index + "rotation=".length(), index + tmp);
263 }
264 _rotate = Double.parseDouble(rotation);
265 }
266
267 try {
268 if (size.length() == 0) {
269 size = "" + _image.getWidth();
270 _source.setText(getTagText() + size);
271 return;
272 }
273 size = values[0];
274 // parse width or ratio from text
275 if (size.contains(".")) {
276 // this is a ratio
277 _scale = Float.parseFloat(size);
278 _scaleType = RATIO;
279 } else if (size.length() > 0) {
280 // this is an absolute width
281 int width = Integer.parseInt(size);
282 _scaleType = WIDTH;
283 setWidth(width);
284 }
285 } catch (Exception e) {
286 _scale = 1F;
287 }
288 }
289
290 public void setStartCrop(Point p)
291 {
292 if (p != null) setStartCrop(p.getX(), p.getY());
293 }
294
295 public void setStartCrop(int x, int y) {
296 invalidateCroppedArea();
297 _cropStart = new Point(x - getX(), y - getY());
298 invalidateCroppedArea();
299 }
300
301 public void setEndCrop(Point p)
302 {
303 if (p != null) setEndCrop(p.getX(), p.getY());
304 }
305
306 public void setEndCrop(int x, int y) {
307 invalidateCroppedArea();
308 _cropEnd = new Point(x - getX(), y - getY());
309 invalidateCroppedArea();
310 }
311
312 private void invalidateCroppedArea() {
313 if (_cropStart != null && _cropEnd != null) {
314 Point topLeft = getTopLeftCrop();
315 Point bottomRight = getBottomRightCrop();
316 int startX = getX() + topLeft.getX() - _highlightThickness;
317 int startY = getY() + topLeft.getY() - _highlightThickness;
318 int border = 2 * _highlightThickness;
319 // TODO: Why invalidate specific area just before invalidateAll? cts16
320 invalidate(new AxisAlignedBoxBounds(startX, startY,
321 bottomRight.getX() - topLeft.getX() + 2 * border, bottomRight.getY() - topLeft.getY() + 2 * border));
322 invalidateAll();
323 } else {
324 invalidateAll();
325 }
326 }
327
328 public Point getTopLeftCrop() {
329 return new Point(Math.min(_cropStart.getX(), _cropEnd.getX()), Math.min(
330 _cropStart.getY(), _cropEnd.getY()));
331 }
332
333 public Point getBottomRightCrop()
334 {
335 return new Point(Math.max(_cropStart.getX(), _cropEnd.getX()), Math.max(_cropStart.getY(), _cropEnd.getY()));
336 }
337
338 public void setShowCrop(boolean value) {
339 // invalidateCroppedArea();
340 _showCropping = value;
341 invalidateCroppedArea();
342 }
343
344 public boolean isBeingCropped()
345 {
346 return (_cropStart != null && _cropEnd != null);
347 }
348
349 public boolean isCropTooSmall()
350 {
351 if (!isBeingCropped()) return true;
352
353 int cropWidth = Math.abs(_cropEnd.getX() - _cropStart.getX());
354 int cropHeight = Math.abs(_cropEnd.getY() - _cropStart.getY());
355
356 return cropWidth < MINIMUM_WIDTH || cropHeight < MINIMUM_WIDTH;
357 }
358
359 public void clearCropping() {
360 invalidateCroppedArea();
361 _cropStart = null;
362 _cropEnd = null;
363 setShowCrop(false);
364 }
365
366 public PolygonBounds updateBounds()
367 {
368 if (_image == null) {
369 refresh();
370 parseSize();
371 }
372
373 Point[] ori = new Point[4];
374 Point centre = new Point();
375
376 int base_x = (_anchorLeft!=null) ? _anchorLeft : _source.getX();
377 int base_y = (_anchorTop!=null) ? _anchorTop : _source.getY();
378
379 if (_cropStart == null || _cropEnd == null) {
380 int width = getWidth();
381 int height = getHeight();
382
383 centre.setX(base_x + width / 2);
384 centre.setY(base_y + height / 2);
385
386 int xdiff = -MARGIN_RIGHT; // -getLeftMargin();
387
388 // extra pixel around the image so the highlighting is visible
389// _poly.addPoint(_source.getX() + 1 + xdiff, _source.getY() - 1);
390// _poly.addPoint(_source.getX() + width, _source.getY() - 1);
391// _poly.addPoint(_source.getX() + width, _source.getY() + height);
392// _poly.addPoint(_source.getX() + 1 + xdiff, _source.getY() + height);
393
394 ori[0] = new Point(base_x + 1 + xdiff, base_y - 1);
395 ori[1] = new Point(base_x + width, base_y - 1);
396 ori[2] = new Point(base_x + width, base_y + height);
397 ori[3] = new Point(base_x + 1 + xdiff, base_y + height);
398
399 } else {
400 Point topLeft = getTopLeftCrop();
401 Point bottomRight = getBottomRightCrop();
402
403 centre.setX(base_x + (bottomRight.getX() - topLeft.getX()) / 2);
404 centre.setY(base_y + (bottomRight.getY() - topLeft.getY()) / 2);
405
406 AxisAlignedBoxBounds clip = new AxisAlignedBoxBounds(topLeft.getX() + base_x,
407 topLeft.getY() + base_y, bottomRight.getX() - topLeft.getX(),
408 bottomRight.getY() - topLeft.getY());
409// _poly.addPoint((int) clip.getMinX() - 1, (int) clip.getMinY() - 1);
410// _poly.addPoint((int) clip.getMinX() - 1, (int) clip.getMaxY());
411// _poly.addPoint((int) clip.getMaxX(), (int) clip.getMaxY());
412// _poly.addPoint((int) clip.getMaxX(), (int) clip.getMinY() - 1);
413
414 ori[0] = new Point((int) clip.getMinX() - 1, (int) clip.getMinY() - 1);
415 ori[1] = new Point((int) clip.getMinX() - 1, (int) clip.getMaxY());
416 ori[2] = new Point((int) clip.getMaxX(), (int) clip.getMaxY());
417 ori[3] = new Point((int) clip.getMaxX(), (int) clip.getMinY() - 1);
418
419 }
420
421 PolygonBounds poly = new PolygonBounds();
422 for (Point p : ori) {
423 poly.addPoint(p);
424 }
425 poly.rotate(Math.PI * _rotate / 180, centre);
426
427 return poly.close();
428 }
429
430 @Override
431 public double getEnclosedArea() {
432 return getWidth() * getHeight();
433 }
434
435 @Override
436 public void setWidth(Integer width) {
437 _scale = width * 1F / (_end.getX() - _start.getX());
438 }
439
440 public Point getStart() {
441 return _start;
442 }
443
444 public Point getEnd() {
445 return _end;
446 }
447
448 /**
449 * Gets the width with which the picture is displayed on the screen.
450 */
451 @Override
452 public Integer getWidth() {
453 return Math.round(getUnscaledWidth() * _scale);
454 }
455
456 /**
457 * Gets the height with which the picture is displayed on the screen.
458 */
459 @Override
460 public int getHeight() {
461 return Math.round(getUnscaledHeight() * _scale);
462 }
463
464 /**
465 * Dont paint links in audience mode for images.
466 */
467 @Override
468 protected void paintLink()
469 {
470 if (DisplayController.isAudienceMode()) return;
471 super.paintLink();
472 }
473
474 /**
475 * Paint the image repeatedly tiled over the drawing area.
476 */
477 public void paintImageTiling()
478 {
479 if (_image == null) return;
480
481 int iw = _image.getWidth();
482 int ih = _image.getHeight();
483 if(iw <= 0 || ih <= 0) return;
484
485 int base_x = (_anchorLeft != null) ? _anchorLeft : _source.getX();
486 int base_y = (_anchorTop != null) ? _anchorTop : _source.getY();
487
488 int dX1 = base_x;
489 int dY1 = base_y;
490 int dX2 = base_x + getWidth();
491 int dY2 = base_y + getHeight();
492
493 Image tmp = Image.createImage(getWidth(), getHeight());
494 EcosystemManager.getGraphicsManager().pushDrawingSurface(tmp);
495
496 int offX = (tmp.getWidth() - getWidth()) / 2;
497 int offY = (tmp.getHeight() - getHeight()) / 2;
498
499 int cropStartX = _start.getX();
500 int cropEndX = _end.getX();
501 if(cropEndX > iw) {
502 cropEndX = iw;
503 }
504
505 for(int x = dX1; x < dX2; ) {
506 // end - start = (cropEnd - cropStart) * scale
507 // => cropEnd = cropStart + (end - start) / scale
508 int w = (int) ((cropEndX - cropStartX) * _scale);
509 int endX = x + w;
510 if(endX > dX2) {
511 endX = dX2;
512 cropEndX = cropStartX + (int) ((dX2 - x) / _scale);
513 }
514
515 int cropStartY = _start.getY();
516 int cropEndY = _end.getY();
517 if(cropEndY > ih) {
518 cropEndY = ih;
519 }
520
521 for(int y = dY1; y < dY2; ) {
522 int h = (int) ((cropEndY - cropStartY) * _scale);
523 int endY = y + h;
524 if(endY > dY2) {
525 endY = dY2;
526 cropEndY = cropStartY + (int) ((dY2 - y) / _scale);
527 }
528
529 int sx = _flipX ? cropEndX : cropStartX;
530 int ex = _flipX ? cropStartX : cropEndX;
531 int sy = _flipY ? cropEndY : cropStartY;
532 int ey = _flipY ? cropStartY : cropEndY;
533
534 Point topLeft = new Point(x - dX1 + offX, y - dY1 + offY);
535 Dimension size = new Dimension(endX - x, endY - y);
536 Point cropTopLeft = new Point(sx, sy);
537 Dimension cropSize = new Dimension(ex - sx, ey - sy);
538 if (cropSize.width > 0 && cropSize.height > 0) {
539 EcosystemManager.getGraphicsManager().drawImage(_image, topLeft, size, 0.0, cropTopLeft, cropSize);
540 }
541
542 cropStartY = 0;
543 cropEndY = ih;
544
545 y = endY;
546 }
547
548 cropStartX = 0;
549 cropEndX = iw;
550
551 x = endX;
552 }
553
554 EcosystemManager.getGraphicsManager().popDrawingSurface();
555 EcosystemManager.getGraphicsManager().drawImage(tmp, new Point(dX1, dY1), null, Math.PI * _rotate / 180);
556 tmp.releaseImage();
557 }
558
559 @Override
560 public void paint()
561 {
562 if (_image == null) return;
563
564 paintLink();
565
566 GraphicsManager g = EcosystemManager.getGraphicsManager();
567
568 // if we are showing the cropping
569 if (_showCropping && !isCropTooSmall()) {
570 // show the uncropped area as transparent
571 g.setCompositeAlpha(CROPPING_COMPOSITE_ALPHA);
572 paintImageTiling();
573 g.setCompositeAlpha(1.0f);
574
575 // show the cropped area normally
576 Point topLeft = getTopLeftCrop();
577 Point bottomRight = getBottomRightCrop();
578 int base_x = (_anchorLeft != null) ? _anchorLeft : _source.getX();
579 int base_y = (_anchorTop != null) ? _anchorTop : _source.getY();
580
581 Clip clip = new Clip(new AxisAlignedBoxBounds( base_x + topLeft.getX(),
582 base_y + topLeft.getY(),
583 bottomRight.getX() - topLeft.getX(),
584 bottomRight.getY() - topLeft.getY()));
585 EnforcedClipKey key = g.pushClip(clip);
586 paintImageTiling();
587 g.popClip(key);
588
589 // Draw an outline for the crop selection box
590 g.drawRectangle(clip.getBounds(), 0.0, null, getPaintHighlightColor(), HIGHLIGHT_STROKE, null);
591
592 // otherwise, paint normally
593 } else {
594 paintImageTiling();
595 }
596
597 PolygonBounds poly = (PolygonBounds) getBounds();
598
599 if (hasVisibleBorder()) {
600 Stroke borderStroke = new Stroke(getThickness(), DEFAULT_CAP, DEFAULT_JOIN);
601 g.drawPolygon(poly, null, null, 0.0, null, getPaintBorderColor(), borderStroke);
602 }
603
604 if (isHighlighted()) {
605 Stroke borderStroke = new Stroke(1, DEFAULT_CAP, DEFAULT_JOIN);
606 g.drawPolygon(poly, null, null, 0.0, null, getHighlightColor(), borderStroke);
607 }
608 }
609
610 @Override
611 public Colour getHighlightColor()
612 {
613 if (_highlightColour.equals(getBorderColor())) return ALTERNATE_HIGHLIGHT;
614 return _highlightColour;
615 }
616
617 protected Picture createPicture()
618 {
619 return ItemUtils.CreatePicture((Text) _source.copy());
620 }
621
622 @Override
623 public Picture copy() {
624 Picture p = createPicture();
625 p._image = _image;
626 p._highlightMode = _highlightMode;
627 // Doing Duplicate item duplicates link mark which we dont want to do
628 // when in audience mode because the linkMark will be copied incorrectly
629 // Get all properties from the source
630
631 if (!isCropTooSmall() && _cropStart != null && _cropEnd != null) {
632 assert (_cropEnd != null);
633 // make the start be the top left
634 // make the end be the bottom right
635 Point topLeft = getTopLeftCrop();
636 Point bottomRight = getBottomRightCrop();
637 int startX = Math.round(topLeft.getX() / _scale) + _start.getX();
638 int startY = Math.round(topLeft.getY() / _scale) + _start.getY();
639 int endX = Math.round(bottomRight.getX() / _scale + _start.getX());
640 int endY = Math.round(bottomRight.getY() / _scale + _start.getY());
641 int width = _image.getWidth();
642 int height = _image.getHeight();
643 // adjust our start and end if the user has dragged outside of the
644 // shape
645 if (endX > width) {
646 endX = width;
647 }
648 if (endY > height) {
649 endY = height;
650 }
651 if (startX < 0) {
652 startX = 0;
653 }
654 if (startY < 0) {
655 startY = 0;
656 }
657 p._start = new Point(startX, startY);
658 p._end = new Point(endX, endY);
659 int base_x = (_anchorLeft!=null) ? _anchorLeft : _source.getX();
660 int base_y = (_anchorTop!=null) ? _anchorTop : _source.getY();
661 p._source.setPosition(topLeft.getX() + base_x, topLeft.getY() + base_y);
662 } else {
663 p._start = new Point(_start);
664 p._end = new Point(_end);
665 }
666 p._scale = _scale;
667 p._scaleType = _scaleType;
668 p._path = _path;
669 p._fileName = _fileName;
670
671 p.updateSource();
672 p.invalidateBounds();
673
674 return p;
675 }
676
677 public float getScale() {
678 return _scale;
679 }
680
681 public void setScale(float scale) {
682 _scale = scale;
683 }
684
685 public void scaleCrop() {
686 // scale crop values to within image bounds
687 int iw = _image.getWidth();
688 int ih = _image.getHeight();
689 if(iw > 0 || ih > 0) {
690 while(_start.getX() >= iw) {
691 _start.setX(_start.getX() - iw);
692 _end.setX(_end.getX() - iw);
693 }
694 while(_start.getY() >= ih) {
695 _start.setY(_start.getY() - ih);
696 _end.setY(_end.getY() - ih);
697 }
698 while(_start.getX() < 0) {
699 _start.setX(_start.getX() + iw);
700 _end.setX(_end.getX() + iw);
701 }
702 while(_start.getY() < 0) {
703 _start.setY(_start.getY() + ih);
704 _end.setY(_end.getY() + ih);
705 }
706 }
707 }
708
709 public void setCrop(int startX, int startY, int endX, int endY) {
710 _start = new Point(startX, startY);
711 _end = new Point(endX, endY);
712 updateSource();
713 }
714
715 @Override
716 public float getSize() {
717 return _source.getSize();
718 }
719
720 @Override
721 public void setSize(float size) {
722 float diff = size - _source.getSize();
723 float oldScale = _scale;
724
725 float multiplier = (1000F + diff * 40F) / 1000F;
726 _scale = _scale * multiplier;
727
728 // picture must still be at least XX pixels wide
729 if (getWidth() < MINIMUM_WIDTH) {
730 _scale = oldScale;
731 } else {
732 _source.translate(EcosystemManager.getInputManager().getCursorPosition(), multiplier);
733 }
734 updateSource();
735 invalidateBounds();
736 // Make sure items that are resized display the border
737 invalidateAll();
738 }
739
740 @Override
741 public void setAnnotation(boolean val) {
742 }
743
744 /**
745 * Returns the Image that this Picture object is painting on the screen.
746 * This is used by Frame to repaint animated GIFs.
747 *
748 * @return The Image that this Picture object represents.
749 */
750 public Image getImage() {
751 return _image;
752 }
753
754 public Image getCroppedImage() {
755 if (_image == null)
756 return null;
757 if (!isCropped()) {
758 return _image;
759 }
760
761 return Image.createImageAsCroppedCopy(_image, _start.getX(), _start.getY(), getUnscaledWidth(), getUnscaledHeight());
762 }
763
764 public int getUnscaledWidth() {
765 return _end.getX() - _start.getX();
766 }
767
768 public int getUnscaledHeight() {
769 return _end.getY() - _start.getY();
770 }
771
772 /**
773 * @return true if this is a cropped image.
774 */
775 public boolean isCropped() {
776 return (_end.getX() != 0 && _end.getX() != _image.getWidth()) || (_end.getY() != 0 && _end.getY() != _image.getHeight()) || _start.getY() != 0 || _start.getX() != 0;
777 }
778
779 @Override
780 public boolean refresh() {
781 if (isNoise()) {
782 _image = EncryptedImage.getNoise();
783 } else {
784 String encryptionLabel = _source.getEncryptionLabel();
785 if (encryptionLabel == null || encryptionLabel.isEmpty()) {
786 _image = Image.getImage(_path);
787 } else {
788 LabelResult result = Label.getLabel(encryptionLabel);
789 if (result == LabelResult.SuccessResolveLabelToKey) {
790 _image = EncryptedImage.getImage(_path, result.key);
791 } else {
792 MessageBay.displayMessage(result.toString());
793 _image = EncryptedImage.getNoise();
794 }
795 }
796 }
797
798 return true;
799 }
800
801 @Override
802 protected int getLinkYOffset() {
803 return getBoundsHeight() / 2;
804 }
805
806 @Override
807 public void setLinkMark(boolean state) {
808 // TODO use the more efficient invalidiate method
809 // The commented code below is not quite working
810 // if(!state)
811 // invalidateCommonTrait(ItemAppearence.LinkChanged);
812 _source.setLinkMark(state);
813 // if(state)
814 // invalidateCommonTrait(ItemAppearence.LinkChanged);
815 invalidateAll();
816 }
817
818 @Override
819 public void setActionMark(boolean state) {
820 // if (!state)
821 // invalidateCommonTrait(ItemAppearence.LinkChanged);
822 _source.setActionMark(state);
823 // if (state)
824 // invalidateCommonTrait(ItemAppearence.LinkChanged);
825 invalidateAll();
826 }
827
828 @Override
829 public boolean getLinkMark() {
830 return !DisplayController.isAudienceMode() && _source.getLinkMark();
831 }
832
833 @Override
834 public boolean getActionMark() {
835 return _source.getActionMark();
836 }
837
838 @Override
839 public String getName() {
840 return _fileName;
841 }
842
843 public String getPath() {
844 return _path;
845 }
846
847 /**
848 * Copies the image to the default images folder and updates the reference to it in Expeditee
849 * Used for correcting image references for FrameShare
850 */
851 public void moveToImagesFolder() {
852 File f = new File(getPath());
853 // if the file is not in the default images folder, copy it there
854 if(! f.getParentFile().equals(new File(FrameIO.IMAGES_PATH))) {
855 try {
856 File f2 = new File(FrameIO.IMAGES_PATH + f.getName());
857 FrameUtils.copyFile(f, f2, false);
858 f = f2;
859 } catch (IOException e) {
860 e.printStackTrace();
861 f = null;
862 }
863 }
864 _path = f.getPath();
865 _fileName = f.getName();
866 updateSource();
867 }
868
869 protected String getTagText() {
870 return "@i: " + _fileName + " ";
871 }
872
873 /**
874 * Updates the source text for this item to match the current size of the
875 * image.
876 *
877 */
878 private void updateSource() {
879 StringBuffer newText = new StringBuffer(getTagText());
880
881 switch (_scaleType) {
882 case (RATIO):
883 DecimalFormat format = new DecimalFormat("0.00");
884 newText.append(format.format(_scale));
885 break;
886 case (WIDTH):
887 newText.append(getWidth());
888 break;
889 }
890
891 scaleCrop();
892
893 // If the image is cropped add the position for the start and finish of
894 // the crop to the soure text
895 if (_start.getX() > 0 || _start.getY() > 0 || _end.getX() != _image.getWidth()
896 || _end.getY() != _image.getHeight()) {
897 newText.append(" ").append(_start.getX()).append(" ").append(_start.getY());
898 newText.append(" ").append(_end.getX()).append(" ").append(_end.getY());
899 }
900
901 if(_flipX) {
902 newText.append(" flipX");
903 }
904 if(_flipY) {
905 newText.append(" flipY");
906 }
907 if(Double.compare(_rotate, 0) != 0) {
908 newText.append(" rotation=" + _rotate);
909 }
910
911 _source.setText(newText.toString());
912 }
913
914 @Override
915 public void translate(Point origin, double ratio) {
916 _scale *= ratio;
917 updateSource();
918 super.translate(origin, ratio);
919 }
920
921 @Override
922 public AxisAlignedBoxBounds getDrawingArea() {
923
924 AxisAlignedBoxBounds da = super.getDrawingArea();
925
926 if (getLink() != null || hasAction()) {
927 AxisAlignedBoxBounds linkBounds = AxisAlignedBoxBounds.getEnclosing(getLinkBounds());
928 linkBounds.getTopLeft().add(getX() - LEFT_MARGIN, getY() + getLinkYOffset());
929 linkBounds.getSize().width += 2;
930 linkBounds.getSize().height += 2;
931 da.combineWith(linkBounds);
932 }
933
934 return da;
935
936 }
937
938 @Override
939 public void scale(Float scale, int originX, int originY) {
940 setScale(getScale() * scale);
941 super.scale(scale, originX, originY);
942 }
943
944 public void setFlipX(boolean flip) {
945 _flipX = flip;
946 }
947
948 public void setFlipY(boolean flip) {
949 _flipY = flip;
950 }
951
952 public boolean getFlipX() {
953 return _flipX;
954 }
955
956 public boolean getFlipY() {
957 return _flipY;
958 }
959
960 public void setRotate(double rotate) {
961 _rotate = rotate;
962 updateSource();
963 invalidateBounds();
964 }
965
966 public double getRotate() {
967 return _rotate;
968 }
969
970 public boolean MouseOverBackgroundPixel(int mouseX, int mouseY, Colour bg_col)
971 {
972 int base_x = (_anchorLeft!=null) ? _anchorLeft : _source.getX();
973 int base_y = (_anchorTop!=null) ? _anchorTop : _source.getY();
974 int x = mouseX - base_x;
975 int y = mouseY - base_y;
976 int xInverseScale = Math.round(x / _scale);
977 int yInverseScale = Math.round(y / _scale);
978
979 Colour c = _image.getPixel(xInverseScale, yInverseScale);
980 int c_alpha = c.getAlpha255();
981 if (c_alpha == 0) {
982 return true;
983 }
984
985 int c_red = c.getRed255();
986 int c_green = c.getGreen255();
987 int c_blue = c.getBlue255();
988
989 int bg_red = (bg_col!=null) ? bg_col.getRed255() : 0xff;
990 int bg_green = (bg_col!=null) ? bg_col.getGreen255() : 0xff;
991 int bg_blue = (bg_col!=null) ? bg_col.getBlue255() : 0xff;
992
993 int red_diff = Math.abs(c_red - bg_red);
994 int green_diff = Math.abs(c_green - bg_green);
995 int blue_diff = Math.abs(c_blue - bg_blue);
996
997 return ((red_diff<=2) && (green_diff<=2) && (blue_diff<=2));
998
999 }
1000}
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