1 package org.vaadin.aceeditor.client;
2
3 import org.vaadin.aceeditor.client.TransportDiff.TransportRangeDiff;
4
5 public class RangeDiff {
6 private final int drow1;
7 private final int dcol1;
8 private final int drow2;
9 private final int dcol2;
10
11 public RangeDiff(int drow1, int dcol1, int drow2, int dcol2) {
12 this.drow1 = drow1;
13 this.dcol1 = dcol1;
14 this.drow2 = drow2;
15 this.dcol2 = dcol2;
16 }
17
18 public static RangeDiff diff(AceRangeef="../../../../org/vaadin/aceeditor/client/AceRange.html#AceRange">AceRange r1, AceRange r2) {
19 return new RangeDiff(
20 r2.getStartRow() - r1.getStartRow(),
21 r2.getStartCol() - r1.getStartCol(),
22 r2.getEndRow() - r1.getEndRow(),
23 r2.getEndCol() - r1.getEndCol());
24 }
25
26 public boolean isIdentity() {
27 return drow1==0 && dcol1==0 && drow2==0 && dcol2==0;
28 }
29
30 public AceRange../../../../org/vaadin/aceeditor/client/AceRange.html#AceRange">AceRange applyTo(AceRange r) {
31 return new AceRange(
32 r.getStartRow() + drow1,
33 r.getStartCol() + dcol1,
34 r.getEndRow() + drow2,
35 r.getEndCol() + dcol2);
36 }
37
38 @Override
39 public String toString() {
40 return "(("+drow1+","+dcol1+"), ("+drow2+","+dcol2+"))";
41 }
42
43 public TransportRangeDiff asTransport() {
44 return new TransportRangeDiff(drow1, dcol1, drow2, dcol2);
45 }
46
47 public static RangeDiff fromTransport(TransportRangeDiff trd) {
48 return new RangeDiff(trd.drow1, trd.dcol1, trd.drow2, trd.dcol2);
49 }
50
51 }