2 * Copyright © 2012 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
18 package org.altusmetrum.altoslib_11;
22 public abstract class AltosUnits {
24 AltosUnitsRange[] range_metric, range_imperial;
26 private AltosUnitsRange range(double v, boolean imperial_units) {
27 AltosUnitsRange[] ranges = imperial_units ? range_imperial : range_metric;
29 for (int i = ranges.length - 1; i > 0; i--)
30 if (v >= ranges[i].lower_limit)
35 private AltosUnitsRange first_range(boolean imperial_units) {
36 return imperial_units ? range_imperial[0] : range_metric[0];
39 public abstract double value(double v, boolean imperial_units);
41 public abstract double inverse(double v, boolean imperial_units);
43 public abstract String show_units(boolean imperial_units);
45 public abstract String say_units(boolean imperial_units);
47 public abstract int show_fraction(int width, boolean imperial_units);
49 private double value(double v) {
50 return value(v, AltosConvert.imperial_units);
53 private double inverse(double v) {
54 return inverse(v, AltosConvert.imperial_units);
57 private String show_units() {
58 return show_units(AltosConvert.imperial_units);
61 private String say_units() {
62 return say_units(AltosConvert.imperial_units);
65 private int show_fraction(int width) {
66 return show_fraction(width, AltosConvert.imperial_units);
69 private int say_fraction(boolean imperial_units) {
73 private String show_format(AltosUnitsRange range, int width) {
74 return String.format("%%%d.%df %s", width, range.show_fraction(width), range.show_units);
77 private String say_format(AltosUnitsRange range) {
78 return String.format("%%1.%df", range.say_fraction());
81 private String say_units_format(AltosUnitsRange range) {
82 return String.format("%%1.%df %s", range.say_fraction(), range.say_units);
85 public String show(int width, double v, boolean imperial_units) {
86 AltosUnitsRange range = range(v, imperial_units);
88 return String.format(show_format(range, width), range.value(v));
91 public String say(double v, boolean imperial_units) {
92 AltosUnitsRange range = range(v, imperial_units);
94 return String.format(say_format(range), range.value(v));
97 public String say_units(double v, boolean imperial_units) {
98 AltosUnitsRange range = range(v, imperial_units);
100 return String.format(say_units_format(range), range.value(v));
103 public String show(int width, double v) {
104 return show(width, v, AltosConvert.imperial_units);
107 public String say(double v) {
108 return say(v, AltosConvert.imperial_units);
111 public String say_units(double v) {
112 return say_units(v, AltosConvert.imperial_units);
115 /* Parsing functions. Use the first range of the type */
116 public String parse_units(boolean imperial_units) {
117 return first_range(imperial_units).show_units;
120 public String parse_units() {
121 return parse_units(AltosConvert.imperial_units);
124 public double parse_value(double v, boolean imperial_units) {
125 return first_range(imperial_units).value(v);
128 public double parse_value(double v) {
129 return parse_value(v, AltosConvert.imperial_units);
132 /* Graphing functions. Use the first range of the type */
133 public String graph_units(boolean imperial_units) {
134 return first_range(imperial_units).show_units;
137 public String graph_units() {
138 return graph_units(AltosConvert.imperial_units);
141 public double graph_value(double v, boolean imperial_units) {
142 return first_range(imperial_units).value(v);
145 public double graph_value(double v) {
146 return graph_value(v, AltosConvert.imperial_units);
149 private String graph_format(AltosUnitsRange range, int width) {
150 return String.format(String.format("%%%d.%df", width, range.show_fraction(width)), 0.0);
153 public String graph_format(int width, boolean imperial_units) {
154 return graph_format(first_range(imperial_units), width);
157 public String graph_format(int width) {
158 return graph_format(width, AltosConvert.imperial_units);
161 /* Parsing functions. */
162 public double parse_locale(String s, boolean imperial_units) throws ParseException {
163 double v = AltosParse.parse_double_locale(s);
164 return inverse(v, imperial_units);
167 public double parse_net(String s, boolean imperial_units) throws ParseException {
168 double v = AltosParse.parse_double_net(s);
169 return inverse(v, imperial_units);
172 public double parse_locale(String s) throws ParseException {
173 return parse_locale(s, AltosConvert.imperial_units);
176 public double parse_net(String s) throws ParseException {
177 return parse_net(s, AltosConvert.imperial_units);
180 public AltosUnits() {
181 range_metric = new AltosUnitsRange[1];
183 range_metric[0] = new AltosUnitsRange(this, false) {
184 double value(double v) {
185 return units.value(v, false);
188 int show_fraction(int width) {
189 return units.show_fraction(width, false);
193 return units.say_fraction(false);
197 range_imperial = new AltosUnitsRange[1];
199 range_imperial[0] = new AltosUnitsRange(this, true) {
200 double value(double v) {
201 return units.value(v, true);
204 int show_fraction(int width) {
205 return units.show_fraction(width, true);
209 return units.say_fraction(true);