/
TextRoi.java
619 lines (569 loc) · 16.8 KB
/
TextRoi.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
package ij.gui;
import ij.*;
import ij.process.*;
import ij.util.*;
import ij.macro.Interpreter;
import java.awt.geom.*;
import java.awt.*;
/** This class is a rectangular ROI containing text. */
public class TextRoi extends Roi {
public static final int LEFT=0, CENTER=1, RIGHT=2;
static final int MAX_LINES = 50;
private static final String line1 = "Enter text, then press";
private static final String line2 = "ctrl+b to add to overlay";
private static final String line3 = "or ctrl+d to draw.";
private String[] theText = new String[MAX_LINES];
private static String name = "SansSerif";
private static int style = Font.PLAIN;
private static int size = 18;
private Font instanceFont;
private static boolean newFont = true;
private static boolean antialiasedText = true; // global flag used by text tool
private static int globalJustification;
private int justification;
private boolean antialiased = antialiasedText;
private static boolean recordSetFont = true;
private double previousMag;
private boolean firstChar = true;
private boolean firstMouseUp = true;
private int cline = 0;
private boolean drawStringMode;
private double angle; // degrees
/** Creates a TextRoi.*/
public TextRoi(int x, int y, String text) {
super(x, y, 1, 1);
init(text, null);
}
/** Use this constructor as a drop-in replacement for ImageProcessor.drawString(). */
public TextRoi(String text, double x, double y, Font font) {
super(x, y, 1, 1);
drawStringMode = true;
theText[0] = text;
instanceFont = font;
if (instanceFont==null)
instanceFont = new Font(name, style, size);
ImageJ ij = IJ.getInstance();
Graphics g = ij!=null?ij.getGraphics():null;
if (g==null) return;
FontMetrics metrics = g.getFontMetrics(instanceFont);
g.dispose();
bounds = null;
width = (int)stringWidth(theText[0],metrics,g);
height = (int)(metrics.getHeight());
this.x = (int)x;
this.y = (int)(y - height);
setAntialiased(true);
}
/** Creates a TextRoi using sub-pixel coordinates.*/
public TextRoi(double x, double y, String text) {
super(x, y, 1.0, 1.0);
init(text, null);
}
/** Creates a TextRoi using the specified location and Font.
* @see ij.gui.Roi#setStrokeColor
* @see ij.gui.Roi#setNonScalable
* @see ij.ImagePlus#setOverlay(ij.gui.Overlay)
*/
public TextRoi(int x, int y, String text, Font font) {
super(x, y, 1, 1);
init(text, font);
}
/** Creates a TextRoi using the specified sub-pixel location and Font. */
public TextRoi(double x, double y, String text, Font font) {
super(x, y, 1.0, 1.0);
init(text, font);
}
/** Creates a TextRoi using the specified location, size and Font.
public TextRoi(int x, int y, int width, int height, String text, Font font) {
super(x, y, width, height);
init(text, font);
}
/** Creates a TextRoi using the specified sub-pixel location, size and Font. */
public TextRoi(double x, double y, double width, double height, String text, Font font) {
super(x, y, width, height);
init(text, font);
}
private void init(String text, Font font) {
String[] lines = Tools.split(text, "\n");
int count = Math.min(lines.length, MAX_LINES);
for (int i=0; i<count; i++)
theText[i] = lines[i];
if (font==null) font = new Font(name, style, size);
instanceFont = font;
firstChar = false;
if (width==1 && height==1) {
ImageJ ij = IJ.getInstance();
Graphics g = ij!=null?ij.getGraphics():null;
if (g!=null)
updateBounds(g);
}
if (IJ.debugMode) IJ.log("TextRoi: "+theText[0]+" "+getBounds());
}
/** @deprecated */
public TextRoi(int x, int y, String text, Font font, Color color) {
super(x, y, 1, 1);
if (font==null) font = new Font(name, style, size);
instanceFont = font;
IJ.error("TextRoi", "API has changed. See updated example at\nhttp://imagej.nih.gov/ij/macros/js/TextOverlay.js");
}
public TextRoi(int x, int y, ImagePlus imp) {
super(x, y, imp);
ImageCanvas ic = imp.getCanvas();
double mag = getMagnification();
if (mag>1.0)
mag = 1.0;
if (size<(12/mag))
size = (int)(12/mag);
theText[0] = line1;
theText[1] = line2;
theText[2] = line3;
if (previousRoi!=null && (previousRoi instanceof TextRoi)) {
firstMouseUp = false;
//IJ.write(""+previousRoi.getBounds());
previousRoi = null;
}
instanceFont = new Font(name, style, size);
justification = globalJustification;
setStrokeColor(Toolbar.getForegroundColor());
}
/** This method is used by the text tool to add typed
characters to displayed text selections. */
public void addChar(char c) {
if (imp==null) return;
if (!(c>=' ' || c=='\b' || c=='\n')) return;
if (firstChar) {
cline = 0;
theText[cline] = new String("");
for (int i=1; i<MAX_LINES; i++)
theText[i] = null;
}
if ((int)c=='\b') {
// backspace
if (theText[cline].length()>0)
theText[cline] = theText[cline].substring(0, theText[cline].length()-1);
else if (cline>0) {
theText[cline] = null;
cline--;
}
imp.draw(clipX, clipY, clipWidth, clipHeight);
firstChar = false;
return;
} else if ((int)c=='\n') {
// newline
if (cline<(MAX_LINES-1)) cline++;
theText[cline] = "";
updateBounds(null);
updateText();
} else {
char[] chr = {c};
theText[cline] += new String(chr);
updateBounds(null);
updateText();
firstChar = false;
return;
}
}
Font getScaledFont() {
if (nonScalable)
return instanceFont;
else {
if (instanceFont==null)
instanceFont = new Font(name, style, size);
double mag = getMagnification();
return instanceFont.deriveFont((float)(instanceFont.getSize()*mag));
}
}
/** Renders the text on the image. */
public void drawPixels(ImageProcessor ip) {
ip.setFont(instanceFont);
ip.setAntialiasedText(antialiased);
FontMetrics metrics = ip.getFontMetrics();
int fontHeight = metrics.getHeight();
int descent = metrics.getDescent();
int i = 0;
int yy = 0;
int xi = (int)Math.round(getXBase());
int yi = (int)Math.round(getYBase());
while (i<MAX_LINES && theText[i]!=null) {
switch (justification) {
case LEFT:
ip.drawString(theText[i], xi, yi+yy+fontHeight);
break;
case CENTER:
int tw = metrics.stringWidth(theText[i]);
ip.drawString(theText[i], xi+(width-tw)/2, yi+yy+fontHeight);
break;
case RIGHT:
tw = metrics.stringWidth(theText[i]);
ip.drawString(theText[i], xi+width-tw, yi+yy+fontHeight);
break;
}
i++;
yy += fontHeight;
}
}
/** Draws the text on the screen, clipped to the ROI. */
public void draw(Graphics g) {
if (IJ.debugMode) IJ.log("draw: "+theText[0]+" "+width+","+height);
if (Interpreter.isBatchMode() && ic!=null && ic.getDisplayList()!=null) return;
if (newFont || width==1)
updateBounds(g);
Color c = getStrokeColor();
setStrokeColor(getColor());
super.draw(g); // draw the rectangle
setStrokeColor(c);
double mag = getMagnification();
int sx = screenXD(getXBase());
int sy = screenYD(getYBase());
int swidth = (int)((bounds!=null?bounds.width:width)*mag);
int sheight = (int)((bounds!=null?bounds.height:height)*mag);
Rectangle r = null;
if (angle!=0.0)
drawText(g);
else {
r = g.getClipBounds();
g.setClip(sx, sy, swidth, sheight);
drawText(g);
if (r!=null) g.setClip(r.x, r.y, r.width, r.height);
}
}
public void drawOverlay(Graphics g) {
drawText(g);
}
void drawText(Graphics g) {
g.setColor( strokeColor!=null? strokeColor:ROIColor);
Java2.setAntialiasedText(g, antialiased);
if (newFont || width==1)
updateBounds(g);
double mag = getMagnification();
int xi = (int)Math.round(getXBase());
int yi = (int)Math.round(getYBase());
double widthd = bounds!=null?bounds.width:width;
double heightd = bounds!=null?bounds.height:height;
int widthi = (int)Math.round(widthd);
int heighti = (int)Math.round(heightd);
int sx = nonScalable?xi:screenXD(getXBase());
int sy = nonScalable?yi:screenYD(getYBase());
int sw = nonScalable?widthi:(int)(getMagnification()*widthd);
int sh = nonScalable?heighti:(int)(getMagnification()*heightd);
Font font = getScaledFont();
FontMetrics metrics = g.getFontMetrics(font);
int fontHeight = metrics.getHeight();
int descent = metrics.getDescent();
g.setFont(font);
Graphics2D g2d = (Graphics2D)g;
AffineTransform at = null;
if (angle!=0.0) {
at = g2d.getTransform();
double cx=sx, cy=sy;
double theta = Math.toRadians(angle);
if (drawStringMode) {
cx = screenX(x);
cy = screenY(y+height-descent);
}
g2d.rotate(-theta, cx, cy);
}
int i = 0;
if (fillColor!=null) {
if (getStrokeWidth()<10) {
Color saveFillColor = fillColor;
setStrokeWidth(10);
fillColor = saveFillColor;
}
updateBounds(g);
Color c = g.getColor();
int alpha = fillColor.getAlpha();
g.setColor(fillColor);
if (drawStringMode)
g.fillRect(sx, sy, sw, sh);
else
g.fillRect(sx-5, sy-5, sw+10, sh+10);
g.setColor(c);
}
while (i<MAX_LINES && theText[i]!=null) {
switch (justification) {
case LEFT:
if (drawStringMode)
g.drawString(theText[i], screenX(x), screenY(y+height-descent));
else
g.drawString(theText[i], sx, sy+fontHeight-descent);
break;
case CENTER:
int tw = metrics.stringWidth(theText[i]);
g.drawString(theText[i], sx+(sw-tw)/2, sy+fontHeight-descent);
break;
case RIGHT:
tw = metrics.stringWidth(theText[i]);
g.drawString(theText[i], sx+sw-tw, sy+fontHeight-descent);
break;
}
i++;
sy += fontHeight;
}
if (at!=null) // restore transformation matrix used to rotate text
g2d.setTransform(at);
}
/*
void handleMouseUp(int screenX, int screenY) {
if (width<size || height<size)
grow(x+Math.max(size*5,width), y+Math.max((int)(size*1.5),height));
super.handleMouseUp(screenX, screenY);
}
*/
/** Returns the name of the global (default) font. */
public static String getFont() {
return name;
}
/** Returns the global (default) font size. */
public static int getSize() {
return size;
}
/** Returns the global (default) font style. */
public static int getStyle() {
return style;
}
/** Set the current (instance) font. */
public void setCurrentFont(Font font) {
instanceFont = font;
updateBounds(null);
}
/** Returns the current (instance) font. */
public Font getCurrentFont() {
return instanceFont;
}
/** Returns the state of global 'antialiasedText' variable, which is used by the "Fonts" widget. */
public static boolean isAntialiased() {
return antialiasedText;
}
/** Sets the 'antialiased' instance variable. */
public void setAntialiased(boolean antialiased) {
this.antialiased = antialiased;
if (angle>0.0)
this.antialiased = true;
}
/** Returns the state of the 'antialiased' instance variable. */
public boolean getAntialiased() {
return antialiased;
}
/** Sets the 'justification' instance variable (must be LEFT, CENTER or RIGHT) */
public static void setGlobalJustification(int justification) {
if (justification<0 || justification>RIGHT)
justification = LEFT;
globalJustification = justification;
ImagePlus imp = WindowManager.getCurrentImage();
if (imp!=null) {
Roi roi = imp.getRoi();
if (roi instanceof TextRoi) {
((TextRoi)roi).setJustification(justification);
imp.draw();
}
}
}
/** Returns the global (default) justification (LEFT, CENTER or RIGHT). */
public static int getGlobalJustification() {
return globalJustification;
}
/** Sets the 'justification' instance variable (must be LEFT, CENTER or RIGHT) */
public void setJustification(int justification) {
if (justification<0 || justification>RIGHT)
justification = LEFT;
this.justification = justification;
}
/** Returns the value of the 'justification' instance variable (LEFT, CENTER or RIGHT). */
public int getJustification() {
return justification;
}
/** Sets the global font face, size and style that will be used by
TextROIs interactively created using the text tool. */
public static void setFont(String fontName, int fontSize, int fontStyle) {
setFont(fontName, fontSize, fontStyle, true);
}
/** Sets the font face, size, style and antialiasing mode that will
be used by TextROIs interactively created using the text tool. */
public static void setFont(String fontName, int fontSize, int fontStyle, boolean antialiased) {
recordSetFont = true;
name = fontName;
size = fontSize;
style = fontStyle;
globalJustification = LEFT;
antialiasedText = antialiased;
newFont = true;
ImagePlus imp = WindowManager.getCurrentImage();
if (imp!=null) {
Roi roi = imp.getRoi();
if (roi instanceof TextRoi) {
((TextRoi)roi).setAntialiased(antialiased);
((TextRoi)roi).setCurrentFont(new Font(name, style, size));
imp.draw();
}
}
}
protected void handleMouseUp(int screenX, int screenY) {
super.handleMouseUp(screenX, screenY);
if (firstMouseUp) {
updateBounds(null);
updateText();
firstMouseUp = false;
} else {
if (width<5 || height<5)
imp.deleteRoi();
}
}
/** Increases the size of bounding rectangle so it's large enough to hold the text. */
void updateBounds(Graphics g) {
//IJ.log("adjustSize1: "+theText[0]+" "+width+","+height);
if ((theText[0]!=null&&theText[0].equals(line1)) || drawStringMode)
return;
double mag = ic!=null?ic.getMagnification():1.0;
if (nonScalable) mag = 1.0;
Font font = getScaledFont();
newFont = false;
boolean nullg = g==null;
if (nullg) {
if (ic!=null)
g = ic.getGraphics();
else
return;
}
Java2.setAntialiasedText(g, antialiased);
FontMetrics metrics = g.getFontMetrics(font);
int fontHeight = (int)(metrics.getHeight()/mag);
int descent = metrics.getDescent();
int i=0, nLines=0;
Rectangle2D.Double b = bounds;
if (b==null)
b = new Rectangle2D.Double(x, y, width, height);
double oldXD = b.x;
double oldYD = b.y;
double oldWidthD = b.width;
double oldHeightD = b.height;
double newWidth = 10;
while (i<MAX_LINES && theText[i]!=null) {
nLines++;
double w = stringWidth(theText[i],metrics,g)/mag;
if (w>newWidth)
newWidth = w;
i++;
}
if (nullg) g.dispose();
newWidth += 2.0;
b.width = newWidth;
switch (justification) {
case LEFT:
if (xMax!=0 && x+newWidth>xMax && width!=1)
b.x = xMax-width;
break;
case CENTER:
b.x = oldX+oldWidth/2.0 - newWidth/2.0;
break;
case RIGHT:
b.x = oldX+oldWidth - newWidth;
break;
}
b.height = nLines*fontHeight+2;
if (yMax!=0) {
if (b.height>yMax)
b.height = yMax;
if (b.y+b.height>yMax)
b.y = yMax-height;
}
x=(int)b.x; y=(int)b.y;
width=(int)Math.ceil(b.width);
height=(int)Math.ceil(b.height);
//IJ.log("adjustSize2: "+theText[0]+" "+width+","+height);
}
void updateText() {
if (imp!=null) {
updateClipRect();
imp.draw(clipX, clipY, clipWidth, clipHeight);
}
}
double stringWidth(String s, FontMetrics metrics, Graphics g) {
java.awt.geom.Rectangle2D r = metrics.getStringBounds(s, g);
return r.getWidth();
}
public String getMacroCode(ImageProcessor ip) {
String code = "";
if (recordSetFont) {
String options = "";
if (style==Font.BOLD)
options += "bold";
if (style==Font.ITALIC)
options += " italic";
if (antialiasedText)
options += " antialiased";
if (options.equals(""))
options = "plain";
code += "setFont(\""+name+"\", "+size+", \""+options+"\");\n";
recordSetFont = false;
}
FontMetrics metrics = ip.getFontMetrics();
int fontHeight = metrics.getHeight();
String text = "";
for (int i=0; i<MAX_LINES; i++) {
if (theText[i]==null) break;
text += theText[i];
if (theText[i+1]!=null) text += "\\n";
}
code += "makeText(\""+text+"\", "+x+", "+(y+fontHeight)+");\n";
code += "//drawString(\""+text+"\", "+x+", "+(y+fontHeight)+");\n";
return (code);
}
public String getText() {
String text = "";
for (int i=0; i<MAX_LINES; i++) {
if (theText[i]==null) break;
text += theText[i]+"\n";
}
return text;
}
public static void recordSetFont() {
recordSetFont = true;
}
public boolean isDrawingTool() {
return true;
}
public void clear(ImageProcessor ip) {
if (instanceFont==null)
ip.fill();
else {
ip.setFont(instanceFont);
ip.setAntialiasedText(antialiasedText);
int i=0, width=0;
while (i<MAX_LINES && theText[i]!=null) {
int w = ip.getStringWidth(theText[i]);
if (w>width)
width = w;
i++;
}
Rectangle r = ip.getRoi();
if (width>r.width) {
r.width = width;
ip.setRoi(r);
}
ip.fill();
}
}
/** Returns a copy of this TextRoi. */
public synchronized Object clone() {
TextRoi tr = (TextRoi)super.clone();
tr.theText = new String[MAX_LINES];
for (int i=0; i<MAX_LINES; i++)
tr.theText[i] = theText[i];
return tr;
}
public double getAngle() {
return angle;
}
public void setAngle(double angle) {
this.angle = angle;
if (angle!=0.0)
setAntialiased(true);
}
public boolean getDrawStringMode() {
return drawStringMode;
}
public void setDrawStringMode(boolean drawStringMode) {
this.drawStringMode = drawStringMode;
}
}