|
1
7
8 package java.awt;
9
10 import java.awt.geom.Rectangle2D  ;
11
12
41 public class Rectangle extends Rectangle2D
42 implements Shape , java.io.Serializable
43 {
44
45
52 public int x;
53
54
61 public int y;
62
63
70 public int width;
71
72
79 public int height;
80
81
84 private static final long serialVersionUID = -4345857070255674764L;
85
86
89 private static native void initIDs();
90
91 static {
92
93 Toolkit.loadLibraries();
94 if (!GraphicsEnvironment.isHeadless()) {
95 initIDs();
96 }
97 }
98
99
104 public Rectangle() {
105 this(0, 0, 0, 0);
106 }
107
108
115 public Rectangle(Rectangle r) {
116 this(r.x, r.y, r.width, r.height);
117 }
118
119
129 public Rectangle(int x, int y, int width, int height) {
130 this.x = x;
131 this.y = y;
132 this.width = width;
133 this.height = height;
134 }
135
136
143 public Rectangle(int width, int height) {
144 this(0, 0, width, height);
145 }
146
147
157 public Rectangle(Point p, Dimension d) {
158 this(p.x, p.y, d.width, d.height);
159 }
160
161
167 public Rectangle(Point p) {
168 this(p.x, p.y, 0, 0);
169 }
170
171
177 public Rectangle(Dimension d) {
178 this(0, 0, d.width, d.height);
179 }
180
181
186 public double getX() {
187 return x;
188 }
189
190
195 public double getY() {
196 return y;
197 }
198
199
204 public double getWidth() {
205 return width;
206 }
207
208
213 public double getHeight() {
214 return height;
215 }
216
217
230 public Rectangle getBounds() {
231 return new Rectangle (x, y, width, height);
232 }
233
234
238 public Rectangle2D getBounds2D() {
239 return new Rectangle (x, y, width, height);
240 }
241
242
253 public void setBounds(Rectangle r) {
254 setBounds(r.x, r.y, r.width, r.height);
255 }
256
257
275 public void setBounds(int x, int y, int width, int height) {
276 reshape(x, y, width, height);
277 }
278
279
292 public void setRect(double x, double y, double width, double height) {
293 int x0 = (int) Math.floor(x);
294 int y0 = (int) Math.floor(y);
295 int x1 = (int) Math.ceil(x+width);
296 int y1 = (int) Math.ceil(y+height);
297 setBounds(x0, y0, x1-x0, y1-y0);
298 }
299
300
315 @Deprecated
316 public void reshape(int x, int y, int width, int height) {
317 this.x = x;
318 this.y = y;
319 this.width = width;
320 this.height = height;
321 }
322
323
335 public Point getLocation() {
336 return new Point (x, y);
337 }
338
339
350 public void setLocation(Point p) {
351 setLocation(p.x, p.y);
352 }
353
354
365 public void setLocation(int x, int y) {
366 move(x, y);
367 }
368
369
377 @Deprecated
378 public void move(int x, int y) {
379 this.x = x;
380 this.y = y;
381 }
382
383
394 public void translate(int x, int y) {
395 this.x += x;
396 this.y += y;
397 }
398
399
412 public Dimension getSize() {
413 return new Dimension (width, height);
414 }
415
416
427 public void setSize(Dimension d) {
428 setSize(d.width, d.height);
429 }
430
431
443 public void setSize(int width, int height) {
444 resize(width, height);
445 }
446
447
456 @Deprecated
457 public void resize(int width, int height) {
458 this.width = width;
459 this.height = height;
460 }
461
462
472 public boolean contains(Point p) {
473 return contains(p.x, p.y);
474 }
475
476
488 public boolean contains(int x, int y) {
489 return inside(x, y);
490 }
491
492
502 public boolean contains(Rectangle r) {
503 return contains(r.x, r.y, r.width, r.height);
504 }
505
506
521 public boolean contains(int X, int Y, int W, int H) {
522 int w = this.width;
523 int h = this.height;
524 if ((w | h | W | H) < 0) {
525 return false;
527 }
528 int x = this.x;
530 int y = this.y;
531 if (X < x || Y < y) {
532 return false;
533 }
534 w += x;
535 W += X;
536 if (W <= X) {
537 if (w >= x || W > w) return false;
542 } else {
543 if (w >= x && W > w) return false;
547 }
548 h += y;
549 H += Y;
550 if (H <= Y) {
551 if (h >= y || H > h) return false;
552 } else {
553 if (h >= y && H > h) return false;
554 }
555 return true;
556 }
557
558
571 @Deprecated
572 public boolean inside(int X, int Y) {
573 int w = this.width;
574 int h = this.height;
575 if ((w | h) < 0) {
576 return false;
578 }
579 int x = this.x;
581 int y = this.y;
582 if (X < x || Y < y) {
583 return false;
584 }
585 w += x;
586 h += y;
587 return ((w < x || w > X) &&
589 (h < y || h > Y));
590 }
591
592
602 public boolean intersects(Rectangle r) {
603 int tw = this.width;
604 int th = this.height;
605 int rw = r.width;
606 int rh = r.height;
607 if (rw <= 0 || rh <= 0 || tw <= 0 || th <= 0) {
608 return false;
609 }
610 int tx = this.x;
611 int ty = this.y;
612 int rx = r.x;
613 int ry = r.y;
614 rw += rx;
615 rh += ry;
616 tw += tx;
617 th += ty;
618 return ((rw < rx || rw > tx) &&
620 (rh < ry || rh > ty) &&
621 (tw < tx || tw > rx) &&
622 (th < ty || th > ry));
623 }
624
625
638 public Rectangle intersection(Rectangle r) {
639 int tx1 = this.x;
640 int ty1 = this.y;
641 int rx1 = r.x;
642 int ry1 = r.y;
643 long tx2 = tx1; tx2 += this.width;
644 long ty2 = ty1; ty2 += this.height;
645 long rx2 = rx1; rx2 += r.width;
646 long ry2 = ry1; ry2 += r.height;
647 if (tx1 < rx1) tx1 = rx1;
648 if (ty1 < ry1) ty1 = ry1;
649 if (tx2 > rx2) tx2 = rx2;
650 if (ty2 > ry2) ty2 = ry2;
651 tx2 -= tx1;
652 ty2 -= ty1;
653 if (tx2 < Integer.MIN_VALUE) tx2 = Integer.MIN_VALUE;
657 if (ty2 < Integer.MIN_VALUE) ty2 = Integer.MIN_VALUE;
658 return new Rectangle (tx1, ty1, (int) tx2, (int) ty2);
659 }
660
661
671 public Rectangle union(Rectangle r) {
672 int x1 = Math.min(x, r.x);
673 int x2 = Math.max(x + width, r.x + r.width);
674 int y1 = Math.min(y, r.y);
675 int y2 = Math.max(y + height, r.y + r.height);
676 return new Rectangle (x1, y1, x2 - x1, y2 - y1);
677 }
678
679
697 public void add(int newx, int newy) {
698 int x1 = Math.min(x, newx);
699 int x2 = Math.max(x + width, newx);
700 int y1 = Math.min(y, newy);
701 int y2 = Math.max(y + height, newy);
702 x = x1;
703 y = y1;
704 width = x2 - x1;
705 height = y2 - y1;
706 }
707
708
726 public void add(Point pt) {
727 add(pt.x, pt.y);
728 }
729
730
736 public void add(Rectangle r) {
737 int x1 = Math.min(x, r.x);
738 int x2 = Math.max(x + width, r.x + r.width);
739 int y1 = Math.min(y, r.y);
740 int y2 = Math.max(y + height, r.y + r.height);
741 x = x1;
742 y = y1;
743 width = x2 - x1;
744 height = y2 - y1;
745 }
746
747
770 public void grow(int h, int v) {
771 x -= h;
772 y -= v;
773 width += h * 2;
774 height += v * 2;
775 }
776
777
784 public boolean isEmpty() {
785 return (width <= 0) || (height <= 0);
786 }
787
788
804 public int outcode(double x, double y) {
805
814 int out = 0;
815 if (this.width <= 0) {
816 out |= OUT_LEFT | OUT_RIGHT;
817 } else if (x < this.x) {
818 out |= OUT_LEFT;
819 } else if (x > this.x + (double) this.width) {
820 out |= OUT_RIGHT;
821 }
822 if (this.height <= 0) {
823 out |= OUT_TOP | OUT_BOTTOM;
824 } else if (y < this.y) {
825 out |= OUT_TOP;
826 } else if (y > this.y + (double) this.height) {
827 out |= OUT_BOTTOM;
828 }
829 return out;
830 }
831
832
843 public Rectangle2D createIntersection(Rectangle2D r) {
844 if (r instanceof Rectangle ) {
845 return intersection((Rectangle ) r);
846 }
847 Rectangle2D dest = new Rectangle2D.Double ();
848 Rectangle2D.intersect(this, r, dest);
849 return dest;
850 }
851
852
863 public Rectangle2D createUnion(Rectangle2D r) {
864 if (r instanceof Rectangle ) {
865 return union((Rectangle ) r);
866 }
867 Rectangle2D dest = new Rectangle2D.Double ();
868 Rectangle2D.union(this, r, dest);
869 return dest;
870 }
871
872
883 public boolean equals(Object obj) {
884 if (obj instanceof Rectangle ) {
885 Rectangle r = (Rectangle )obj;
886 return ((x == r.x) &&
887 (y == r.y) &&
888 (width == r.width) &&
889 (height == r.height));
890 }
891 return super.equals(obj);
892 }
893
894
900 public String toString() {
901 return getClass().getName() + "[x=" + x + ",y=" + y + ",width=" + width + ",height=" + height + "]";
902 }
903 }
904 |
Popular Tags |
Java API By Example, From Geeks To Geeks.