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comparison flys-client/src/main/java/de/intevation/flys/client/shared/Transform2D.java @ 1598:ef745bc6bed9

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Distinguish between numbers and dates while parsing chart info documents; the MousePosition panel now displays the position on date axes correctly. flys-client/trunk@3931 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 06 Feb 2012 14:43:27 +0000
parents ea2191b1299d
children
comparison
equal deleted inserted replaced
1597:8bbaa0d173cf 1598:ef745bc6bed9
1 package de.intevation.flys.client.shared; 1 package de.intevation.flys.client.shared;
2 2
3 import java.io.Serializable; 3 import java.io.Serializable;
4 import java.util.Date;
4 5
5 import com.google.gwt.core.client.GWT; 6 import com.google.gwt.core.client.GWT;
7 import com.google.gwt.i18n.client.DateTimeFormat;
8 import com.google.gwt.i18n.client.DateTimeFormat.PredefinedFormat;
9 import com.google.gwt.i18n.client.NumberFormat;
6 10
7 11
8 /** 12 /**
9 * This object supports a linear transformation to transform xy coordinates into 13 * This object supports a linear transformation to transform xy coordinates into
10 * an other coordinate system based on scale and translation values. 14 * an other coordinate system based on scale and translation values.
11 * 15 *
12 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> 16 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
13 */ 17 */
14 public class Transform2D implements Serializable { 18 public class Transform2D implements Serializable {
19
20 protected String xType;
21 protected String yType;
15 22
16 protected double sx; 23 protected double sx;
17 protected double sy; 24 protected double sy;
18 25
19 protected double tx; 26 protected double tx;
31 * @param sy The scale factor for the y axis. 38 * @param sy The scale factor for the y axis.
32 * @param tx The translation factor for the x axis. 39 * @param tx The translation factor for the x axis.
33 * @param ty The translation factor for the y axis. 40 * @param ty The translation factor for the y axis.
34 */ 41 */
35 public Transform2D(double sx, double sy, double tx, double ty) { 42 public Transform2D(double sx, double sy, double tx, double ty) {
43 this(sx, sy, tx, ty, "number", "number");
44 }
45
46
47 public Transform2D(
48 double sx, double sy,
49 double tx, double ty,
50 String xType,
51 String yType
52 ) {
53 this.xType = xType;
54 this.yType = yType;
55
36 this.sx = sx; 56 this.sx = sx;
37 this.sy = sy; 57 this.sy = sy;
38 this.tx = tx; 58 this.tx = tx;
39 this.ty = ty; 59 this.ty = ty;
40 } 60 }
50 70
51 return new double[] { resX, resY }; 71 return new double[] { resX, resY };
52 } 72 }
53 73
54 74
75 public String[] format(Number[] xy) {
76 String x = null;
77 String y = null;
78
79 if (xType.equals("date")) {
80 x = formatDate(xy[0].longValue());
81 }
82 else {
83 x = formatNumber(xy[0].doubleValue());
84 }
85
86 if (yType.equals("date")) {
87 y = formatDate(xy[1].longValue());
88 }
89 else {
90 y = formatNumber(xy[1].doubleValue());
91 }
92
93 return new String[] { x, y };
94 }
95
96
97 protected String formatDate(long time) {
98 Date date = new Date(time);
99 DateTimeFormat df = getDateTimeFormat();
100
101 return df.format(date);
102 }
103
104
105 protected String formatNumber(double number) {
106 NumberFormat nf = getNumberFormat();
107
108 return nf.format(number);
109 }
110
111
112 public DateTimeFormat getDateTimeFormat() {
113 return DateTimeFormat.getFormat(PredefinedFormat.DATE_SHORT);
114 }
115
116
117 public NumberFormat getNumberFormat() {
118 return NumberFormat.getDecimalFormat();
119 }
120
121
55 public void dumpGWT() { 122 public void dumpGWT() {
56 GWT.log("SX = " + sx); 123 GWT.log("SX = " + sx);
57 GWT.log("SY = " + sy); 124 GWT.log("SY = " + sy);
58 GWT.log("TX = " + tx); 125 GWT.log("TX = " + tx);
59 GWT.log("TY = " + ty); 126 GWT.log("TY = " + ty);
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