Added code from the previous implementation of the Unit Converter

It includes:
 - a units database to store units
 - unit prefix classes
 - a unit converter GUI that accepts some unit math

NOTE: A lot of this code will be edited in the near future.

1 files changed, 56 insertions, 0 deletions

diff --git a/src/unitConverter/unit/NonlinearUnits.java b/src/unitConverter/unit/NonlinearUnits.java
new file mode 100755
index 0000000..f7e257c
--- /dev/null
+++ b/src/unitConverter/unit/NonlinearUnits.java
@@ -0,0 +1,56 @@
+/**
+ * Copyright (C) 2018 Adrien Hopkins
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package unitConverter.unit;
+
+/**
+ * Some major nonlinear units.
+ * 
+ * @author Adrien Hopkins
+ * @since 2019-01-14
+ */
+public final class NonlinearUnits {
+	public static final Unit CELSIUS = new AbstractUnit(SI.KELVIN) {
+
+		@Override
+		public double convertFromBase(final double value) {
+			return value - 273.15;
+		}
+
+		@Override
+		public double convertToBase(final double value) {
+			return value + 273.15;
+		}
+	};
+
+	public static final Unit FAHRENHEIT = new AbstractUnit(SI.KELVIN) {
+
+		@Override
+		public double convertFromBase(final double value) {
+			return 1.8 * value - 459.67;
+		}
+
+		@Override
+		public double convertToBase(final double value) {
+			return (value + 459.67) / 1.8;
+		}
+	};
+
+	// You may NOT get a NonlinearUnits instance.
+	private NonlinearUnits() {
+		throw new AssertionError();
+	}
+}