source: trunk/src/org/expeditee/items/Picture.java@ 1420

Last change on this file since 1420 was 1420, checked in by bln4, 5 years ago

Injecting an encryption label into an XRayable Item now injects that encryption label into the source item as well.
File size: 26.0 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.gio.EcosystemManager;
40import org.expeditee.gio.GraphicsManager;
41import org.expeditee.gui.DisplayController;
42import org.expeditee.gui.FrameIO;
43import org.expeditee.gui.FrameUtils;
44
45/**
46 * This class represents an Image loaded from a file which is shown on the
47 * screen. Loading of the Image from disk occurs in the constructor, and takes
48 * approximately one second per mb of the Image file size. <br>
49 * <br>
50 * Currently Supported (Tested) Image formats:<br>
51 * BMP<br>
52 * JPG<br>
53 * GIF<br>
54 * GIF (Animated)<br>
55 * <br>
56 * Currently only the default size of the Image is supported, but future
57 * versions may support scaling.
58 *
59 * @author jdm18
60 *
61 */
62public class Picture extends XRayable {
63
64 private static final float CROPPING_COMPOSITE_ALPHA = 0.5f;
65
66 private static final int MINIMUM_WIDTH = 10;
67
68 public static final int WIDTH = 0;
69
70 public static final int RATIO = 1;
71
72 protected Image _image = null;
73
74 private int _scaleType = RATIO;
75
76 private float _scale = 1.0f;
77
78 // Start of the crop relative to START
79 private Point _cropStart = null;
80
81 // Start of the crop relative to END
82 private Point _cropEnd = null;
83
84 private Point _start = new Point(0, 0);
85
86 private Point _end = new Point(0, 0);
87
88 private double _rotate = 0;
89
90 private boolean _flipX = false;
91 private boolean _flipY = false;
92
93 private boolean _showCropping = false;
94
95 protected Integer _anchorLeft = null;
96 protected Integer _anchorTop = null;
97
98 private String _path = "";
99
100 private String _size = "";
101
102 private String _fileName = null;
103
104 protected Picture(Text source, Image image) {
105 super(source);
106 _image = image;
107
108 refresh();
109
110 if (_image != null) {
111 // Should parsing for minus options also be done?
112 // To be honest, looking at the code, can't really see how _size can be anything but
113 // the empty string at this stage of calling the constructor, although it does have
114 // the 'side' effect of setting other things (such as _start, _end, and _scale)
115 parseSize();
116 }
117 }
118
119 /**
120 * Creates a new Picture from the given path. The ImageObserver is optional
121 * and can be set to NULL. <br>
122 * Note: It is assumed that the file described in path has already been
123 * checked to exist.
124 *
125 * @param source
126 * The Text Item that was used to create this Picture
127 * @param fileName
128 * the name of the file as it should be displayed in the source
129 * text
130 * @param path
131 * The Path of the Image to load from disk.
132 * @param observer
133 * The ImageObserver to assign when painting the Image on the
134 * screen.
135 */
136 public Picture(Text source, String fileName, String path, String size)
137 {
138 super(source);
139 _fileName = fileName;
140 _path = path;
141
142 String size_without_options = parseMinusOptions(size);
143 _size = size_without_options;
144
145 refresh();
146 parseSize();
147 }
148
149 protected String getImageSize() {
150 return _size;
151 }
152
153 protected String parseMinusOptions(String cmd_line) {
154
155 String[] tokens = Text.parseArgsApache(cmd_line);
156
157 // make anything starting with a '-' lowercase
158 for (int i=0; i<tokens.length; i++) {
159 if (tokens[i].startsWith("-")) {
160 tokens[i] = tokens[i].toLowerCase();
161 }
162 }
163
164 // create the command line parser
165 CommandLineParser parser = new GnuParser();
166
167 // create the Options
168 Options options = new Options();
169 options.addOption( "al", "anchorleft", true, "Anchor the vertical left-hand edge of the interactive widget to the value provided " );
170 options.addOption( "at", "anchortop", true, "Anchor the vertical top edge of the interactive widget to the value provided " );
171
172 CommandLine core_line;
173 try {
174 // parse the command line arguments
175 core_line = parser.parse( options, tokens );
176
177 // Update tokens to be version with the options removed
178 tokens = core_line.getArgs();
179
180 }
181 catch( ParseException exp ) {
182 System.err.println( "Unexpected exception:" + exp.getMessage() );
183 core_line = null;
184
185 }
186
187 // Apply any anchor values supplied
188
189 if(core_line.hasOption( "anchorleft" ) ) {
190 String al_str = core_line.getOptionValue( "anchorleft" );
191
192 _anchorLeft = Integer.parseInt(al_str);
193 }
194
195 if(core_line.hasOption( "anchortop" ) ) {
196 String at_str = core_line.getOptionValue( "anchortop" );
197
198 _anchorTop = Integer.parseInt(at_str);
199 }
200
201
202 return String.join(" ", tokens);
203 }
204 protected void parseSize() {
205 String size = getImageSize();
206
207 if (_end.getX() != 0 || _end.getY() != 0)
208 return;
209
210 // set the default values for start and end
211 _start.set(0, 0);
212 if (_image == null)
213 _end.set(0, 0);
214 else
215 _end.set(_image.getWidth(), _image.getHeight());
216 size = size.trim();
217 String sizeLower = size.toLowerCase();
218 String[] values = size.split("\\s+");
219 // Now get the cropping values if there are any
220 try {
221 if (values.length > 2) {
222 int startX = Integer.parseInt(values[1]);
223 int startY = Integer.parseInt(values[2]);
224 _start = new Point(startX, startY);
225 if (values.length > 4) {
226 int endX = Integer.parseInt(values[3]);
227 int endY = Integer.parseInt(values[4]);
228 _end = new Point(endX, endY);
229 }
230 scaleCrop();
231 }
232 } catch (Exception e) {
233 }
234
235 if(sizeLower.contains("flipx")) {
236 _flipX = true;
237 }
238
239 if(sizeLower.contains("flipy")) {
240 _flipY = true;
241 }
242
243 int index = sizeLower.indexOf("rotation=");
244 if(index != -1) {
245 int tmp = sizeLower.indexOf(" ", index);
246 String rotation;
247 if(tmp == -1) {
248 rotation = sizeLower.substring(index + "rotation=".length());
249 } else {
250 rotation = sizeLower.substring(index + "rotation=".length(), index + tmp);
251 }
252 _rotate = Double.parseDouble(rotation);
253 }
254
255 try {
256 if (size.length() == 0) {
257 size = "" + _image.getWidth();
258 _source.setText(getTagText() + size);
259 return;
260 }
261 size = values[0];
262 // parse width or ratio from text
263 if (size.contains(".")) {
264 // this is a ratio
265 _scale = Float.parseFloat(size);
266 _scaleType = RATIO;
267 } else if (size.length() > 0) {
268 // this is an absolute width
269 int width = Integer.parseInt(size);
270 _scaleType = WIDTH;
271 setWidth(width);
272 }
273 } catch (Exception e) {
274 _scale = 1F;
275 }
276 }
277
278 public void setStartCrop(Point p)
279 {
280 if (p != null) setStartCrop(p.getX(), p.getY());
281 }
282
283 public void setStartCrop(int x, int y) {
284 invalidateCroppedArea();
285 _cropStart = new Point(x - getX(), y - getY());
286 invalidateCroppedArea();
287 }
288
289 public void setEndCrop(Point p)
290 {
291 if (p != null) setEndCrop(p.getX(), p.getY());
292 }
293
294 public void setEndCrop(int x, int y) {
295 invalidateCroppedArea();
296 _cropEnd = new Point(x - getX(), y - getY());
297 invalidateCroppedArea();
298 }
299
300 private void invalidateCroppedArea() {
301 if (_cropStart != null && _cropEnd != null) {
302 Point topLeft = getTopLeftCrop();
303 Point bottomRight = getBottomRightCrop();
304 int startX = getX() + topLeft.getX() - _highlightThickness;
305 int startY = getY() + topLeft.getY() - _highlightThickness;
306 int border = 2 * _highlightThickness;
307 // TODO: Why invalidate specific area just before invalidateAll? cts16
308 invalidate(new AxisAlignedBoxBounds(startX, startY,
309 bottomRight.getX() - topLeft.getX() + 2 * border, bottomRight.getY() - topLeft.getY() + 2 * border));
310 invalidateAll();
311 } else {
312 invalidateAll();
313 }
314 }
315
316 public Point getTopLeftCrop() {
317 return new Point(Math.min(_cropStart.getX(), _cropEnd.getX()), Math.min(
318 _cropStart.getY(), _cropEnd.getY()));
319 }
320
321 public Point getBottomRightCrop()
322 {
323 return new Point(Math.max(_cropStart.getX(), _cropEnd.getX()), Math.max(_cropStart.getY(), _cropEnd.getY()));
324 }
325
326 public void setShowCrop(boolean value) {
327 // invalidateCroppedArea();
328 _showCropping = value;
329 invalidateCroppedArea();
330 }
331
332 public boolean isBeingCropped()
333 {
334 return (_cropStart != null && _cropEnd != null);
335 }
336
337 public boolean isCropTooSmall()
338 {
339 if (!isBeingCropped()) return true;
340
341 int cropWidth = Math.abs(_cropEnd.getX() - _cropStart.getX());
342 int cropHeight = Math.abs(_cropEnd.getY() - _cropStart.getY());
343
344 return cropWidth < MINIMUM_WIDTH || cropHeight < MINIMUM_WIDTH;
345 }
346
347 public void clearCropping() {
348 invalidateCroppedArea();
349 _cropStart = null;
350 _cropEnd = null;
351 setShowCrop(false);
352 }
353
354 public PolygonBounds updateBounds()
355 {
356 if (_image == null) {
357 refresh();
358 parseSize();
359 }
360
361 Point[] ori = new Point[4];
362 Point centre = new Point();
363
364 int base_x = (_anchorLeft!=null) ? _anchorLeft : _source.getX();
365 int base_y = (_anchorTop!=null) ? _anchorTop : _source.getY();
366
367 if (_cropStart == null || _cropEnd == null) {
368 int width = getWidth();
369 int height = getHeight();
370
371 centre.setX(base_x + width / 2);
372 centre.setY(base_y + height / 2);
373
374 int xdiff = -MARGIN_RIGHT; // -getLeftMargin();
375
376 // extra pixel around the image so the highlighting is visible
377// _poly.addPoint(_source.getX() + 1 + xdiff, _source.getY() - 1);
378// _poly.addPoint(_source.getX() + width, _source.getY() - 1);
379// _poly.addPoint(_source.getX() + width, _source.getY() + height);
380// _poly.addPoint(_source.getX() + 1 + xdiff, _source.getY() + height);
381
382 ori[0] = new Point(base_x + 1 + xdiff, base_y - 1);
383 ori[1] = new Point(base_x + width, base_y - 1);
384 ori[2] = new Point(base_x + width, base_y + height);
385 ori[3] = new Point(base_x + 1 + xdiff, base_y + height);
386
387 } else {
388 Point topLeft = getTopLeftCrop();
389 Point bottomRight = getBottomRightCrop();
390
391 centre.setX(base_x + (bottomRight.getX() - topLeft.getX()) / 2);
392 centre.setY(base_y + (bottomRight.getY() - topLeft.getY()) / 2);
393
394 AxisAlignedBoxBounds clip = new AxisAlignedBoxBounds(topLeft.getX() + base_x,
395 topLeft.getY() + base_y, bottomRight.getX() - topLeft.getX(),
396 bottomRight.getY() - topLeft.getY());
397// _poly.addPoint((int) clip.getMinX() - 1, (int) clip.getMinY() - 1);
398// _poly.addPoint((int) clip.getMinX() - 1, (int) clip.getMaxY());
399// _poly.addPoint((int) clip.getMaxX(), (int) clip.getMaxY());
400// _poly.addPoint((int) clip.getMaxX(), (int) clip.getMinY() - 1);
401
402 ori[0] = new Point((int) clip.getMinX() - 1, (int) clip.getMinY() - 1);
403 ori[1] = new Point((int) clip.getMinX() - 1, (int) clip.getMaxY());
404 ori[2] = new Point((int) clip.getMaxX(), (int) clip.getMaxY());
405 ori[3] = new Point((int) clip.getMaxX(), (int) clip.getMinY() - 1);
406
407 }
408
409 PolygonBounds poly = new PolygonBounds();
410 for (Point p : ori) {
411 poly.addPoint(p);
412 }
413 poly.rotate(Math.PI * _rotate / 180, centre);
414
415 return poly.close();
416 }
417
418 @Override
419 public double getEnclosedArea() {
420 return getWidth() * getHeight();
421 }
422
423 @Override
424 public void setWidth(Integer width) {
425 _scale = width * 1F / (_end.getX() - _start.getX());
426 }
427
428 public Point getStart() {
429 return _start;
430 }
431
432 public Point getEnd() {
433 return _end;
434 }
435
436 /**
437 * Gets the width with which the picture is displayed on the screen.
438 */
439 @Override
440 public Integer getWidth() {
441 return Math.round(getUnscaledWidth() * _scale);
442 }
443
444 /**
445 * Gets the height with which the picture is displayed on the screen.
446 */
447 @Override
448 public int getHeight() {
449 return Math.round(getUnscaledHeight() * _scale);
450 }
451
452 /**
453 * Dont paint links in audience mode for images.
454 */
455 @Override
456 protected void paintLink()
457 {
458 if (DisplayController.isAudienceMode()) return;
459 super.paintLink();
460 }
461
462 /**
463 * Paint the image repeatedly tiled over the drawing area.
464 */
465 public void paintImageTiling()
466 {
467 if (_image == null) return;
468
469 int iw = _image.getWidth();
470 int ih = _image.getHeight();
471 if(iw <= 0 || ih <= 0) return;
472
473 int base_x = (_anchorLeft != null) ? _anchorLeft : _source.getX();
474 int base_y = (_anchorTop != null) ? _anchorTop : _source.getY();
475
476 int dX1 = base_x;
477 int dY1 = base_y;
478 int dX2 = base_x + getWidth();
479 int dY2 = base_y + getHeight();
480
481 Image tmp = Image.createImage(getWidth(), getHeight());
482 EcosystemManager.getGraphicsManager().pushDrawingSurface(tmp);
483
484 int offX = (tmp.getWidth() - getWidth()) / 2;
485 int offY = (tmp.getHeight() - getHeight()) / 2;
486
487 int cropStartX = _start.getX();
488 int cropEndX = _end.getX();
489 if(cropEndX > iw) {
490 cropEndX = iw;
491 }
492
493 for(int x = dX1; x < dX2; ) {
494 // end - start = (cropEnd - cropStart) * scale
495 // => cropEnd = cropStart + (end - start) / scale
496 int w = (int) ((cropEndX - cropStartX) * _scale);
497 int endX = x + w;
498 if(endX > dX2) {
499 endX = dX2;
500 cropEndX = cropStartX + (int) ((dX2 - x) / _scale);
501 }
502
503 int cropStartY = _start.getY();
504 int cropEndY = _end.getY();
505 if(cropEndY > ih) {
506 cropEndY = ih;
507 }
508
509 for(int y = dY1; y < dY2; ) {
510 int h = (int) ((cropEndY - cropStartY) * _scale);
511 int endY = y + h;
512 if(endY > dY2) {
513 endY = dY2;
514 cropEndY = cropStartY + (int) ((dY2 - y) / _scale);
515 }
516
517 int sx = _flipX ? cropEndX : cropStartX;
518 int ex = _flipX ? cropStartX : cropEndX;
519 int sy = _flipY ? cropEndY : cropStartY;
520 int ey = _flipY ? cropStartY : cropEndY;
521
522 Point topLeft = new Point(x - dX1 + offX, y - dY1 + offY);
523 Dimension size = new Dimension(endX - x, endY - y);
524 Point cropTopLeft = new Point(sx, sy);
525 Dimension cropSize = new Dimension(ex - sx, ey - sy);
526 if (cropSize.width > 0 && cropSize.height > 0) {
527 EcosystemManager.getGraphicsManager().drawImage(_image, topLeft, size, 0.0, cropTopLeft, cropSize);
528 }
529
530 cropStartY = 0;
531 cropEndY = ih;
532
533 y = endY;
534 }
535
536 cropStartX = 0;
537 cropEndX = iw;
538
539 x = endX;
540 }
541
542 EcosystemManager.getGraphicsManager().popDrawingSurface();
543 EcosystemManager.getGraphicsManager().drawImage(tmp, new Point(dX1, dY1), null, Math.PI * _rotate / 180);
544 tmp.releaseImage();
545 }
546
547 @Override
548 public void paint()
549 {
550 if (_image == null) return;
551
552 paintLink();
553
554 GraphicsManager g = EcosystemManager.getGraphicsManager();
555
556 // if we are showing the cropping
557 if (_showCropping && !isCropTooSmall()) {
558 // show the uncropped area as transparent
559 g.setCompositeAlpha(CROPPING_COMPOSITE_ALPHA);
560 paintImageTiling();
561 g.setCompositeAlpha(1.0f);
562
563 // show the cropped area normally
564 Point topLeft = getTopLeftCrop();
565 Point bottomRight = getBottomRightCrop();
566 int base_x = (_anchorLeft != null) ? _anchorLeft : _source.getX();
567 int base_y = (_anchorTop != null) ? _anchorTop : _source.getY();
568
569 Clip clip = new Clip(new AxisAlignedBoxBounds( base_x + topLeft.getX(),
570 base_y + topLeft.getY(),
571 bottomRight.getX() - topLeft.getX(),
572 bottomRight.getY() - topLeft.getY()));
573 EnforcedClipKey key = g.pushClip(clip);
574 paintImageTiling();
575 g.popClip(key);
576
577 // Draw an outline for the crop selection box
578 g.drawRectangle(clip.getBounds(), 0.0, null, getPaintHighlightColor(), HIGHLIGHT_STROKE, null);
579
580 // otherwise, paint normally
581 } else {
582 paintImageTiling();
583 }
584
585 PolygonBounds poly = (PolygonBounds) getBounds();
586
587 if (hasVisibleBorder()) {
588 Stroke borderStroke = new Stroke(getThickness(), DEFAULT_CAP, DEFAULT_JOIN);
589 g.drawPolygon(poly, null, null, 0.0, null, getPaintBorderColor(), borderStroke);
590 }
591
592 if (isHighlighted()) {
593 Stroke borderStroke = new Stroke(1, DEFAULT_CAP, DEFAULT_JOIN);
594 g.drawPolygon(poly, null, null, 0.0, null, getHighlightColor(), borderStroke);
595 }
596 }
597
598 @Override
599 public Colour getHighlightColor()
600 {
601 if (_highlightColour.equals(getBorderColor())) return ALTERNATE_HIGHLIGHT;
602 return _highlightColour;
603 }
604
605 protected Picture createPicture()
606 {
607 return ItemUtils.CreatePicture((Text) _source.copy());
608 }
609
610 @Override
611 public Picture copy() {
612 Picture p = createPicture();
613 p._image = _image;
614 p._highlightMode = _highlightMode;
615 // Doing Duplicate item duplicates link mark which we dont want to do
616 // when in audience mode because the linkMark will be copied incorrectly
617 // Get all properties from the source
618
619 if (!isCropTooSmall() && _cropStart != null && _cropEnd != null) {
620 assert (_cropEnd != null);
621 // make the start be the top left
622 // make the end be the bottom right
623 Point topLeft = getTopLeftCrop();
624 Point bottomRight = getBottomRightCrop();
625 int startX = Math.round(topLeft.getX() / _scale) + _start.getX();
626 int startY = Math.round(topLeft.getY() / _scale) + _start.getY();
627 int endX = Math.round(bottomRight.getX() / _scale + _start.getX());
628 int endY = Math.round(bottomRight.getY() / _scale + _start.getY());
629 int width = _image.getWidth();
630 int height = _image.getHeight();
631 // adjust our start and end if the user has dragged outside of the
632 // shape
633 if (endX > width) {
634 endX = width;
635 }
636 if (endY > height) {
637 endY = height;
638 }
639 if (startX < 0) {
640 startX = 0;
641 }
642 if (startY < 0) {
643 startY = 0;
644 }
645 p._start = new Point(startX, startY);
646 p._end = new Point(endX, endY);
647 int base_x = (_anchorLeft!=null) ? _anchorLeft : _source.getX();
648 int base_y = (_anchorTop!=null) ? _anchorTop : _source.getY();
649 p._source.setPosition(topLeft.getX() + base_x, topLeft.getY() + base_y);
650 } else {
651 p._start = new Point(_start);
652 p._end = new Point(_end);
653 }
654 p._scale = _scale;
655 p._scaleType = _scaleType;
656 p._path = _path;
657 p._fileName = _fileName;
658
659 p.updateSource();
660 p.invalidateBounds();
661
662 return p;
663 }
664
665 public float getScale() {
666 return _scale;
667 }
668
669 public void setScale(float scale) {
670 _scale = scale;
671 }
672
673 public void scaleCrop() {
674 // scale crop values to within image bounds
675 int iw = _image.getWidth();
676 int ih = _image.getHeight();
677 if(iw > 0 || ih > 0) {
678 while(_start.getX() >= iw) {
679 _start.setX(_start.getX() - iw);
680 _end.setX(_end.getX() - iw);
681 }
682 while(_start.getY() >= ih) {
683 _start.setY(_start.getY() - ih);
684 _end.setY(_end.getY() - ih);
685 }
686 while(_start.getX() < 0) {
687 _start.setX(_start.getX() + iw);
688 _end.setX(_end.getX() + iw);
689 }
690 while(_start.getY() < 0) {
691 _start.setY(_start.getY() + ih);
692 _end.setY(_end.getY() + ih);
693 }
694 }
695 }
696
697 public void setCrop(int startX, int startY, int endX, int endY) {
698 _start = new Point(startX, startY);
699 _end = new Point(endX, endY);
700 updateSource();
701 }
702
703 @Override
704 public float getSize() {
705 return _source.getSize();
706 }
707
708 @Override
709 public void setSize(float size) {
710 float diff = size - _source.getSize();
711 float oldScale = _scale;
712
713 float multiplier = (1000F + diff * 40F) / 1000F;
714 _scale = _scale * multiplier;
715
716 // picture must still be at least XX pixels wide
717 if (getWidth() < MINIMUM_WIDTH) {
718 _scale = oldScale;
719 } else {
720 _source.translate(EcosystemManager.getInputManager().getCursorPosition(), multiplier);
721 }
722 updateSource();
723 invalidateBounds();
724 // Make sure items that are resized display the border
725 invalidateAll();
726 }
727
728 @Override
729 public void setAnnotation(boolean val) {
730 }
731
732 /**
733 * Returns the Image that this Picture object is painting on the screen.
734 * This is used by Frame to repaint animated GIFs.
735 *
736 * @return The Image that this Picture object represents.
737 */
738 public Image getImage() {
739 return _image;
740 }
741
742 public Image getCroppedImage() {
743 if (_image == null)
744 return null;
745 if (!isCropped()) {
746 return _image;
747 }
748
749 return Image.createImageAsCroppedCopy(_image, _start.getX(), _start.getY(), getUnscaledWidth(), getUnscaledHeight());
750 }
751
752 public int getUnscaledWidth() {
753 return _end.getX() - _start.getX();
754 }
755
756 public int getUnscaledHeight() {
757 return _end.getY() - _start.getY();
758 }
759
760 /**
761 * @return true if this is a cropped image.
762 */
763 public boolean isCropped() {
764 return (_end.getX() != 0 && _end.getX() != _image.getWidth()) || (_end.getY() != 0 && _end.getY() != _image.getHeight()) || _start.getY() != 0 || _start.getX() != 0;
765 }
766
767 @Override
768 public boolean refresh() {
769 // ImageIcon is faster, but cannot handle some formats
770 // (notably.bmp) hence, we try this first, then if it fails we try
771 // ImageIO
772 /*
773 try {
774 _image = new ImageIcon(_path).getImage();
775 } catch (Exception e) {
776 }
777
778 // if ImageIcon failed to read the image
779 if (_image == null || _image.getWidth() <= 0) {
780 try {
781 _image = ImageIO.read(new File(_path));
782 } catch (IOException e) {
783 // e.printStackTrace();
784 Logger.Log(e);
785 _image = null;
786 return false;
787 }
788 }
789*/
790 _image = Image.getImage(_path);
791 return true;
792 }
793
794 @Override
795 protected int getLinkYOffset() {
796 return getBoundsHeight() / 2;
797 }
798
799 @Override
800 public void setLinkMark(boolean state) {
801 // TODO use the more efficient invalidiate method
802 // The commented code below is not quite working
803 // if(!state)
804 // invalidateCommonTrait(ItemAppearence.LinkChanged);
805 _source.setLinkMark(state);
806 // if(state)
807 // invalidateCommonTrait(ItemAppearence.LinkChanged);
808 invalidateAll();
809 }
810
811 @Override
812 public void setActionMark(boolean state) {
813 // if (!state)
814 // invalidateCommonTrait(ItemAppearence.LinkChanged);
815 _source.setActionMark(state);
816 // if (state)
817 // invalidateCommonTrait(ItemAppearence.LinkChanged);
818 invalidateAll();
819 }
820
821 @Override
822 public boolean getLinkMark() {
823 return !DisplayController.isAudienceMode() && _source.getLinkMark();
824 }
825
826 @Override
827 public boolean getActionMark() {
828 return _source.getActionMark();
829 }
830
831 @Override
832 public String getName() {
833 return _fileName;
834 }
835
836 public String getPath() {
837 return _path;
838 }
839
840 /**
841 * Copies the image to the default images folder and updates the reference to it in Expeditee
842 * Used for correcting image references for FrameShare
843 */
844 public void moveToImagesFolder() {
845 File f = new File(getPath());
846 // if the file is not in the default images folder, copy it there
847 if(! f.getParentFile().equals(new File(FrameIO.IMAGES_PATH))) {
848 try {
849 File f2 = new File(FrameIO.IMAGES_PATH + f.getName());
850 FrameUtils.copyFile(f, f2, false);
851 f = f2;
852 } catch (IOException e) {
853 e.printStackTrace();
854 f = null;
855 }
856 }
857 _path = f.getPath();
858 _fileName = f.getName();
859 updateSource();
860 }
861
862 protected String getTagText() {
863 return "@i: " + _fileName + " ";
864 }
865
866 /**
867 * Updates the source text for this item to match the current size of the
868 * image.
869 *
870 */
871 private void updateSource() {
872 StringBuffer newText = new StringBuffer(getTagText());
873
874 switch (_scaleType) {
875 case (RATIO):
876 DecimalFormat format = new DecimalFormat("0.00");
877 newText.append(format.format(_scale));
878 break;
879 case (WIDTH):
880 newText.append(getWidth());
881 break;
882 }
883
884 scaleCrop();
885
886 // If the image is cropped add the position for the start and finish of
887 // the crop to the soure text
888 if (_start.getX() > 0 || _start.getY() > 0 || _end.getX() != _image.getWidth()
889 || _end.getY() != _image.getHeight()) {
890 newText.append(" ").append(_start.getX()).append(" ").append(_start.getY());
891 newText.append(" ").append(_end.getX()).append(" ").append(_end.getY());
892 }
893
894 if(_flipX) {
895 newText.append(" flipX");
896 }
897 if(_flipY) {
898 newText.append(" flipY");
899 }
900 if(Double.compare(_rotate, 0) != 0) {
901 newText.append(" rotation=" + _rotate);
902 }
903
904 _source.setText(newText.toString());
905 }
906
907 @Override
908 public void translate(Point origin, double ratio) {
909 _scale *= ratio;
910 updateSource();
911 super.translate(origin, ratio);
912 }
913
914 @Override
915 public AxisAlignedBoxBounds getDrawingArea() {
916
917 AxisAlignedBoxBounds da = super.getDrawingArea();
918
919 if (getLink() != null || hasAction()) {
920 AxisAlignedBoxBounds linkBounds = AxisAlignedBoxBounds.getEnclosing(getLinkBounds());
921 linkBounds.getTopLeft().add(getX() - LEFT_MARGIN, getY() + getLinkYOffset());
922 linkBounds.getSize().width += 2;
923 linkBounds.getSize().height += 2;
924 da.combineWith(linkBounds);
925 }
926
927 return da;
928
929 }
930
931 @Override
932 public void scale(Float scale, int originX, int originY) {
933 setScale(getScale() * scale);
934 super.scale(scale, originX, originY);
935 }
936
937 public void setFlipX(boolean flip) {
938 _flipX = flip;
939 }
940
941 public void setFlipY(boolean flip) {
942 _flipY = flip;
943 }
944
945 public boolean getFlipX() {
946 return _flipX;
947 }
948
949 public boolean getFlipY() {
950 return _flipY;
951 }
952
953 public void setRotate(double rotate) {
954 _rotate = rotate;
955 updateSource();
956 invalidateBounds();
957 }
958
959 public double getRotate() {
960 return _rotate;
961 }
962
963 public boolean MouseOverBackgroundPixel(int mouseX, int mouseY, Colour bg_col)
964 {
965 int base_x = (_anchorLeft!=null) ? _anchorLeft : _source.getX();
966 int base_y = (_anchorTop!=null) ? _anchorTop : _source.getY();
967 int x = mouseX - base_x;
968 int y = mouseY - base_y;
969
970 Colour c = _image.getPixel(x, y);
971
972 int c_red = c.getRed255();
973 int c_green = c.getGreen255();
974 int c_blue = c.getBlue255();
975
976 int bg_red = (bg_col!=null) ? bg_col.getRed255() : 0xff;
977 int bg_green = (bg_col!=null) ? bg_col.getGreen255() : 0xff;
978 int bg_blue = (bg_col!=null) ? bg_col.getBlue255() : 0xff;
979
980 int red_diff = Math.abs(c_red - bg_red);
981 int green_diff = Math.abs(c_green - bg_green);
982 int blue_diff = Math.abs(c_blue - bg_blue);
983
984 return ((red_diff<=2) && (green_diff<=2) && (blue_diff<=2));
985
986 }
987}
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