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1
11 package org.eclipse.ui.internal;
12
13 import org.eclipse.swt.graphics.Point;
14
15 public class Shape {
16 int[] data;
17 int used = 0;
18
19 public Shape(int[] data) {
20 this.data = data;
21 this.used = data.length;
22 }
23
24 public Shape(int size) {
25 data = new int[size * 2];
26 }
27
28 public Shape() {
29 this(8);
30 }
31
32 public void add(IntAffineMatrix transform, Shape toAppend) {
33 int idx = 0;
34 while(idx < toAppend.used) {
35 int x = toAppend.data[idx++];
36 int y = toAppend.data[idx++];
37
38 add(transform.getx(x,y), transform.gety(x, y));
39 }
40 }
41
42 public void add(Shape toAppend) {
43 int idx = 0;
44 while(idx < toAppend.used) {
45 int x = toAppend.data[idx++];
46 int y = toAppend.data[idx++];
47
48 add(x, y);
49 }
50 }
51
52 public Shape reverse() {
53 int[] result = new int[used];
54
55 int idx = 0;
56 int srcIdx = used - 2;
57 while (idx < used) {
58 result[idx++] = data[srcIdx];
59 result[idx++] = data[srcIdx + 1];
60 srcIdx -= 2;
61 }
62
63 return new Shape(result);
64 }
65
66 public void add(int x, int y) {
67 if (used >= data.length - 1) {
68 resizeArray(Math.max(data.length * 2, 8));
69 }
70
71 data[used++] = x;
72 data[used++] = y;
73 }
74
75 public void add(Point toAdd) {
76 add(toAdd.x, toAdd.y);
77 }
78
79 public Point[] asPointArray() {
80 Point[] result = new Point[used / 2];
81 int idx = 0;
82 for (int i = 0; i < result.length; i++) {
83 int x = data[idx++];
84 int y = data[idx++];
85
86 result[i] = new Point(x, y);
87 }
88
89 return result;
90 }
91
92 private void resizeArray(int newSize) {
93 int[] newData = new int[newSize];
94 System.arraycopy(data, 0, newData, 0, used);
95 data = newData;
96 }
97
98 public int[] getData() {
99 if (used < data.length) {
100 resizeArray(used);
101 }
102
103 return data;
104 }
105 }
106 |
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