diff options
Diffstat (limited to 'src/unitConverter')
23 files changed, 3000 insertions, 4 deletions
diff --git a/src/unitConverter/UnitsDatabase.java b/src/unitConverter/UnitsDatabase.java new file mode 100755 index 0000000..4816db1 --- /dev/null +++ b/src/unitConverter/UnitsDatabase.java @@ -0,0 +1,584 @@ +/** + * 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; + +import java.io.BufferedReader; +import java.io.File; +import java.io.FileNotFoundException; +import java.io.FileReader; +import java.io.IOException; +import java.util.Collections; +import java.util.HashMap; +import java.util.Map; +import java.util.Objects; +import java.util.Set; + +import unitConverter.dimension.UnitDimension; +import unitConverter.unit.AbstractUnit; +import unitConverter.unit.BaseUnit; +import unitConverter.unit.DefaultUnitPrefix; +import unitConverter.unit.LinearUnit; +import unitConverter.unit.SI; +import unitConverter.unit.Unit; +import unitConverter.unit.UnitPrefix; + +/** + * A database of units. + * + * @author Adrien Hopkins + * @since 2019-01-07 + * @since v0.1.0 + */ +public final class UnitsDatabase { + /** + * The units in this system. + * + * @since 2019-01-07 + * @since v0.1.0 + */ + private final Map<String, Unit> units; + + /** + * The unit prefixes in this system. + * + * @since 2019-01-14 + * @since v0.1.0 + */ + private final Map<String, UnitPrefix> prefixes; + + /** + * Creates the {@code UnitsDatabase}. + * + * @since 2019-01-10 + * @since v0.1.0 + */ + public UnitsDatabase() { + this.units = new HashMap<>(); + this.prefixes = new HashMap<>(); + } + + /** + * Adds all units from a file, using data from the database to parse them. + * <p> + * Each line in the file should consist of a name and an expression (parsed by getUnitFromExpression) separated by + * any number of tab characters. + * <p> + * <p> + * Allowed exceptions: + * <ul> + * <li>Any line that begins with the '#' character is considered a comment and ignored.</li> + * <li>Blank lines are also ignored</li> + * <li>If an expression consists of a single exclamation point, instead of parsing it, this method will search the + * database for an existing unit. If no unit is found, an IllegalArgumentException is thrown. This is used to define + * initial units and ensure that the database contains them.</li> + * </ul> + * + * @param file + * file to read + * @throws IllegalArgumentException + * if the file cannot be parsed, found or read + * @throws NullPointerException + * if file is null + * @since 2019-01-13 + * @since v0.1.0 + */ + public void addAllFromFile(final File file) { + Objects.requireNonNull(file, "file must not be null."); + try (FileReader fileReader = new FileReader(file); BufferedReader reader = new BufferedReader(fileReader)) { + // while the reader has lines to read, read a line, then parse it, then add it + long lineCounter = 0; + while (reader.ready()) { + final String line = reader.readLine(); + lineCounter++; + + // ignore lines that start with a # sign - they're comments + if (line.startsWith("#") || line.isEmpty()) { + continue; + } + + // divide line into name and expression + final String[] parts = line.split("\t"); + if (parts.length < 2) + throw new IllegalArgumentException(String.format( + "Lines must consist of a unit name and its definition, separated by tab(s) (line %d).", + lineCounter)); + final String name = parts[0]; + final String expression = parts[parts.length - 1]; + + if (name.endsWith(" ")) { + System.err.printf("Warning - line %d's unit name ends in a space", lineCounter); + } + + // if expression is "!", search for an existing unit + // if no unit found, throw an error + if (expression.equals("!")) { + if (!this.containsUnitName(name)) + throw new IllegalArgumentException( + String.format("! used but no unit found (line %d).", lineCounter)); + } else { + if (name.endsWith("-")) { + final UnitPrefix prefix; + try { + prefix = this.getPrefixFromExpression(expression); + } catch (final IllegalArgumentException e) { + System.err.printf("Parsing error on line %d:%n", lineCounter); + throw e; + } + this.addPrefix(name.substring(0, name.length() - 1), prefix); + } else { + // it's a unit, get the unit + final Unit unit; + try { + unit = this.getUnitFromExpression(expression); + } catch (final IllegalArgumentException e) { + System.err.printf("Parsing error on line %d:%n", lineCounter); + throw e; + } + AbstractUnit.incrementUnitCounter(); + if (unit instanceof BaseUnit) { + AbstractUnit.incrementBaseUnitCounter(); + } + this.addUnit(name, unit); + } + } + } + } catch (final FileNotFoundException e) { + throw new IllegalArgumentException("Could not find file " + file, e); + } catch (final IOException e) { + throw new IllegalArgumentException("Could not read file " + file, e); + } + } + + /** + * Adds a unit prefix to the database using a custom name + * + * @param name + * prefix's name + * @param prefix + * prefix to add + * @throws NullPointerException + * if name or unit is null + * @since 2019-01-14 + * @since v0.1.0 + */ + public void addPrefix(final String name, final UnitPrefix prefix) { + this.prefixes.put(Objects.requireNonNull(name, "name must not be null."), + Objects.requireNonNull(prefix, "prefix must not be null.")); + } + + /** + * Adds a unit to the database using a custom name + * + * @param name + * unit's name + * @param unit + * unit to add + * @throws NullPointerException + * if unit is null + * @since 2019-01-10 + * @since v0.1.0 + */ + public void addUnit(final String name, final Unit unit) { + this.units.put(name, Objects.requireNonNull(unit, "unit must not be null.")); + } + + /** + * Tests if the database has a unit with this name, ignoring prefixes + * + * @param name + * name to test + * @return if database contains name + * @since 2019-01-13 + * @since v0.1.0 + */ + public boolean containsPrefixlessUnitName(final String name) { + return this.units.containsKey(name); + } + + /** + * Tests if the database has a unit prefix with this name + * + * @param name + * name to test + * @return if database contains name + * @since 2019-01-13 + * @since v0.1.0 + */ + public boolean containsPrefixName(final String name) { + return this.prefixes.containsKey(name); + } + + /** + * Tests if the database has a unit with this name, taking prefixes into consideration + * + * @param name + * name to test + * @return if database contains name + * @since 2019-01-13 + * @since v0.1.0 + */ + public boolean containsUnitName(final String name) { + // check for prefixes + for (final String prefixName : this.prefixNameSet()) { + if (name.startsWith(prefixName)) + if (this.containsUnitName(name.substring(prefixName.length()))) + return true; + } + return this.units.containsKey(name); + } + + /** + * Gets a unit prefix from the database from its name + * + * @param name + * prefix's name + * @return prefix + * @since 2019-01-10 + * @since v0.1.0 + */ + public UnitPrefix getPrefix(final String name) { + return this.prefixes.get(name); + } + + /** + * Gets a unit prefix from a prefix expression + * <p> + * Currently, prefix expressions are much simpler than unit expressions: They are either a number or the name of + * another prefix + * </p> + * + * @param expression + * expression to input + * @return prefix + * @throws IllegalArgumentException + * if expression cannot be parsed + * @throws NullPointerException + * if any argument is null + * @since 2019-01-14 + * @since v0.1.0 + */ + public UnitPrefix getPrefixFromExpression(final String expression) { + Objects.requireNonNull(expression, "expression must not be null."); + + try { + return new DefaultUnitPrefix(Double.parseDouble(expression)); + } catch (final NumberFormatException e) { + if (expression.contains("^")) { + final String[] baseAndExponent = expression.split("\\^"); + + final double base; + try { + base = Double.parseDouble(baseAndExponent[0]); + } catch (final NumberFormatException e2) { + throw new IllegalArgumentException("Base of exponientation must be a number."); + } + + final int exponent; + try { + exponent = Integer.parseInt(baseAndExponent[baseAndExponent.length - 1]); + } catch (final NumberFormatException e2) { + throw new IllegalArgumentException("Exponent must be an integer."); + } + + return new DefaultUnitPrefix(Math.pow(base, exponent)); + } else { + if (!this.containsPrefixName(expression)) + throw new IllegalArgumentException("Unrecognized prefix name \"" + expression + "\"."); + return this.getPrefix(expression); + } + } + } + + /** + * Gets a unit from the database from its name, ignoring prefixes. + * + * @param name + * unit's name + * @return unit + * @since 2019-01-10 + * @since v0.1.0 + */ + public Unit getPrefixlessUnit(final String name) { + return this.units.get(name); + } + + /** + * Gets a unit from the database from its name, looking for prefixes. + * + * @param name + * unit's name + * @return unit + * @since 2019-01-10 + * @since v0.1.0 + */ + public Unit getUnit(final String name) { + if (name.contains("^")) { + final String[] baseAndExponent = name.split("\\^"); + + LinearUnit base; + try { + base = SI.SI.getBaseUnit(UnitDimension.EMPTY).times(Double.parseDouble(baseAndExponent[0])); + } catch (final NumberFormatException e2) { + final Unit unit = this.getUnit(baseAndExponent[0]); + if (unit instanceof LinearUnit) { + base = (LinearUnit) unit; + } else if (unit instanceof BaseUnit) { + base = ((BaseUnit) unit).asLinearUnit(); + } else + throw new IllegalArgumentException("Base of exponientation must be a linear or base unit."); + } + + final int exponent; + try { + exponent = Integer.parseInt(baseAndExponent[baseAndExponent.length - 1]); + } catch (final NumberFormatException e2) { + throw new IllegalArgumentException("Exponent must be an integer."); + } + + final LinearUnit exponentiated = base.toExponent(exponent); + if (exponentiated.getConversionFactor() == 1) + return exponentiated.getSystem().getBaseUnit(exponentiated.getDimension()); + else + return exponentiated; + } else { + for (final String prefixName : this.prefixNameSet()) { + // check for a prefix + if (name.startsWith(prefixName)) { + // prefix found! Make sure what comes after it is actually a unit! + final String prefixless = name.substring(prefixName.length()); + if (this.containsUnitName(prefixless)) { + // yep, it's a proper prefix! Get the unit! + final Unit unit = this.getUnit(prefixless); + final UnitPrefix prefix = this.getPrefix(prefixName); + + // Prefixes only work with linear and base units, so make sure it's one of those + if (unit instanceof LinearUnit) { + final LinearUnit linearUnit = (LinearUnit) unit; + return linearUnit.times(prefix.getMultiplier()); + } else if (unit instanceof BaseUnit) { + final BaseUnit baseUnit = (BaseUnit) unit; + return baseUnit.times(prefix.getMultiplier()); + } + } + } + } + return this.units.get(name); + } + } + + /** + * Uses the database's unit data to parse an expression into a unit + * <p> + * The expression is a series of any of the following: + * <ul> + * <li>The name of a unit, which multiplies or divides the result based on preceding operators</li> + * <li>The operators '*' and '/', which multiply and divide (note that just putting two units or values next to each + * other is equivalent to multiplication)</li> + * <li>The operator '^' which exponentiates. Exponents must be integers.</li> + * <li>A number which is multiplied or divided</li> + * </ul> + * This method only works with linear units. + * + * @param expression + * expression to parse + * @throws IllegalArgumentException + * if the expression cannot be parsed + * @throws NullPointerException + * if any argument is null + * @since 2019-01-07 + * @since v0.1.0 + */ + public Unit getUnitFromExpression(final String expression) { + Objects.requireNonNull(expression, "expression must not be null."); + + // parse the expression + // start with an "empty" unit then apply operations on it + LinearUnit unit = SI.SI.getBaseUnit(UnitDimension.EMPTY).asLinearUnit(); + boolean dividing = false; + + // if I'm just creating an alias, just create one instead of going through the parsing process + if (!expression.contains(" ") && !expression.contains("*") && !expression.contains("/") + && !expression.contains("(") && !expression.contains(")") && !expression.contains("^")) { + try { + return SI.SI.getBaseUnit(UnitDimension.EMPTY).times(Double.parseDouble(expression)); + } catch (final NumberFormatException e) { + if (!this.containsUnitName(expression)) + throw new IllegalArgumentException("Unrecognized unit name \"" + expression + "\"."); + return this.getUnit(expression); + } + } + + // \\* means "asterisk", * is reserved + for (final String part : expression.replaceAll("\\*", " \\* ").replaceAll("/", " / ").replaceAll(" \\^", "\\^") + .replaceAll("\\^ ", "\\^").split(" ")) { + if ("".equals(part)) { + continue; + } + // "unit1 unit2" is the same as "unit1 * unit2", so multiplication signs do nothing + if ("*".equals(part)) { + continue; + } + // When I reach a division sign, don't parse a unit, instead tell myself I'm going to divide the next + // thing + if ("/".equals(part) || "per".equals(part)) { + dividing = true; + continue; + } + + try { + final double partAsNumber = Double.parseDouble(part); // if this works, it's a number + // this code should not throw any exceptions, so I'm going to throw AssertionErrors if it does + try { + if (dividing) { + unit = unit.dividedBy(partAsNumber); + dividing = false; + } else { + unit = unit.times(partAsNumber); + } + } catch (final Exception e) { + throw new AssertionError(e); + } + } catch (final NumberFormatException e) { + // it's a unit, try that + + if (part.contains("(") && part.endsWith(")")) { + // the unitsfile is looking for a nonlinear unit + final String[] unitAndValue = part.split("\\("); + + // this will work because I've checked that it contains a ( + final String unitName = unitAndValue[0]; + final String valueStringWithBracket = unitAndValue[unitAndValue.length - 1]; + final String valueString = valueStringWithBracket.substring(0, valueStringWithBracket.length() - 1); + final double value; + + // try to get the value - else throw an error + try { + value = Double.parseDouble(valueString); + } catch (final NumberFormatException e2) { + throw new IllegalArgumentException("Unparseable value " + valueString); + } + + // get this unit in a linear form + if (!this.containsPrefixlessUnitName(unitName)) + throw new IllegalArgumentException("Unrecognized unit name \"" + part + "\"."); + final Unit partUnit = this.getPrefixlessUnit(unitName); + final LinearUnit multiplier = partUnit.getBase().times(partUnit.convertToBase(value)); + + // finally, add it to the expression + if (dividing) { + unit = unit.dividedBy(multiplier); + dividing = false; + } else { + unit = unit.times(multiplier); + } + } else { + // check for exponientation + if (part.contains("^")) { + final String[] valueAndExponent = part.split("\\^"); + // this will always work because of the contains check + final String valueString = valueAndExponent[0]; + final String exponentString = valueAndExponent[valueAndExponent.length - 1]; + + LinearUnit value; + + // first, try to get the value + try { + final double valueAsNumber = Double.parseDouble(valueString); + + value = SI.SI.getBaseUnit(UnitDimension.EMPTY).times(valueAsNumber); + } catch (final NumberFormatException e2) { + + // look for a unit + if (!this.containsUnitName(valueString)) + throw new IllegalArgumentException("Unrecognized unit name \"" + valueString + "\"."); + final Unit valueUnit = this.getUnit(valueString); + + // try to turn the value into a linear unit + if (valueUnit instanceof LinearUnit) { + value = (LinearUnit) valueUnit; + } else if (valueUnit instanceof BaseUnit) { + value = ((BaseUnit) valueUnit).asLinearUnit(); + } else + throw new IllegalArgumentException("Only linear and base units can be exponientated."); + } + + // now, try to get the exponent + final int exponent; + try { + exponent = Integer.parseInt(exponentString); + } catch (final NumberFormatException e2) { + throw new IllegalArgumentException("Exponents must be integers."); + } + + final LinearUnit exponientated = value.toExponent(exponent); + + if (dividing) { + unit = unit.dividedBy(exponientated); + dividing = false; + } else { + unit = unit.times(exponientated); + } + } else { + // no exponent - look for a unit + // the unitsfile is looking for a linear unit + if (!this.containsUnitName(part)) + throw new IllegalArgumentException("Unrecognized unit name \"" + part + "\"."); + Unit other = this.getUnit(part); + if (other instanceof BaseUnit) { + other = ((BaseUnit) other).asLinearUnit(); + } + if (other instanceof LinearUnit) { + if (dividing) { + unit = unit.dividedBy((LinearUnit) other); + dividing = false; + } else { + unit = unit.times((LinearUnit) other); + } + } else + throw new IllegalArgumentException( + "Only linear or base units can be multiplied and divided. If you want to use a non-linear unit, try the format UNITNAME(VALUE)."); + } + } + } + } + + // replace conversion-factor-1 linear units with base units + // this improves the autogenerated names, allowing them to use derived SI names + if (unit != null && unit.getConversionFactor() == 1) + return unit.getSystem().getBaseUnit(unit.getDimension()); + else + return unit; + } + + /** + * @return an immutable set of all of the unit names in this database, ignoring prefixes + * @since 2019-01-14 + * @since v0.1.0 + */ + public Set<String> prefixlessUnitNameSet() { + return Collections.unmodifiableSet(this.units.keySet()); + } + + /** + * @return an immutable set of all of the prefix names in this database + * @since 2019-01-14 + * @since v0.1.0 + */ + public Set<String> prefixNameSet() { + return Collections.unmodifiableSet(this.prefixes.keySet()); + } +} diff --git a/src/unitConverter/converterGUI/DelegateListModel.java b/src/unitConverter/converterGUI/DelegateListModel.java new file mode 100755 index 0000000..0e9b342 --- /dev/null +++ b/src/unitConverter/converterGUI/DelegateListModel.java @@ -0,0 +1,232 @@ +/** + * 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.converterGUI; + +import java.util.Collection; +import java.util.Iterator; +import java.util.List; +import java.util.ListIterator; + +import javax.swing.AbstractListModel; + +/** + * A list model that delegates to a list. + * <p> + * It is recommended to use the delegate methods in DelegateListModel instead of the delegated list's methods because + * the delegate methods handle updating the list. + * </p> + * + * @author Adrien Hopkins + * @since 2019-01-14 + * @since v0.1.0 + */ +final class DelegateListModel<E> extends AbstractListModel<E> implements List<E> { + /** + * @since 2019-01-14 + * @since v0.1.0 + */ + private static final long serialVersionUID = 8985494428224810045L; + + /** + * The list that this model is a delegate to. + * + * @since 2019-01-14 + * @since v0.1.0 + */ + private final List<E> delegate; + + /** + * Creates the {@code DelegateListModel}. + * + * @param delegate + * list to delegate + * @since 2019-01-14 + * @since v0.1.0 + */ + public DelegateListModel(final List<E> delegate) { + this.delegate = delegate; + } + + @Override + public boolean add(final E element) { + final int index = this.delegate.size(); + final boolean success = this.delegate.add(element); + this.fireIntervalAdded(this, index, index); + return success; + } + + @Override + public void add(final int index, final E element) { + this.delegate.add(index, element); + this.fireIntervalAdded(this, index, index); + } + + @Override + public boolean addAll(final Collection<? extends E> c) { + boolean changed = false; + for (final E e : c) { + if (this.add(e)) { + changed = true; + } + } + return changed; + } + + @Override + public boolean addAll(final int index, final Collection<? extends E> c) { + for (final E e : c) { + this.add(index, e); + } + return !c.isEmpty(); // Since this is a list, it will always change if c has elements. + } + + @Override + public void clear() { + final int oldSize = this.delegate.size(); + this.delegate.clear(); + if (oldSize >= 1) { + this.fireIntervalRemoved(this, 0, oldSize - 1); + } + } + + @Override + public boolean contains(final Object elem) { + return this.delegate.contains(elem); + } + + @Override + public boolean containsAll(final Collection<?> c) { + for (final Object e : c) { + if (!c.contains(e)) + return false; + } + return true; + } + + @Override + public E get(final int index) { + return this.delegate.get(index); + } + + @Override + public E getElementAt(final int index) { + return this.delegate.get(index); + } + + @Override + public int getSize() { + return this.delegate.size(); + } + + @Override + public int indexOf(final Object elem) { + return this.delegate.indexOf(elem); + } + + @Override + public boolean isEmpty() { + return this.delegate.isEmpty(); + } + + @Override + public Iterator<E> iterator() { + return this.delegate.iterator(); + } + + @Override + public int lastIndexOf(final Object elem) { + return this.delegate.lastIndexOf(elem); + } + + @Override + public ListIterator<E> listIterator() { + return this.delegate.listIterator(); + } + + @Override + public ListIterator<E> listIterator(final int index) { + return this.delegate.listIterator(index); + } + + @Override + public E remove(final int index) { + final E returnValue = this.delegate.get(index); + this.delegate.remove(index); + this.fireIntervalRemoved(this, index, index); + return returnValue; + } + + @Override + public boolean remove(final Object o) { + final int index = this.delegate.indexOf(o); + final boolean returnValue = this.delegate.remove(o); + this.fireIntervalRemoved(this, index, index); + return returnValue; + } + + @Override + public boolean removeAll(final Collection<?> c) { + boolean changed = false; + for (final Object e : c) { + if (this.remove(e)) { + changed = true; + } + } + return changed; + } + + @Override + public boolean retainAll(final Collection<?> c) { + final int oldSize = this.size(); + final boolean returnValue = this.delegate.retainAll(c); + this.fireIntervalRemoved(this, this.size(), oldSize - 1); + return returnValue; + } + + @Override + public E set(final int index, final E element) { + final E returnValue = this.delegate.get(index); + this.delegate.set(index, element); + this.fireContentsChanged(this, index, index); + return returnValue; + } + + @Override + public int size() { + return this.delegate.size(); + } + + @Override + public List<E> subList(final int fromIndex, final int toIndex) { + return this.delegate.subList(fromIndex, toIndex); + } + + @Override + public Object[] toArray() { + return this.delegate.toArray(); + } + + @Override + public <T> T[] toArray(final T[] a) { + return this.delegate.toArray(a); + } + + @Override + public String toString() { + return this.delegate.toString(); + } +} diff --git a/src/unitConverter/converterGUI/FilterComparator.java b/src/unitConverter/converterGUI/FilterComparator.java new file mode 100755 index 0000000..27ec3ab --- /dev/null +++ b/src/unitConverter/converterGUI/FilterComparator.java @@ -0,0 +1,93 @@ +/**
+ * 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.converterGUI;
+
+import java.util.Comparator;
+import java.util.Objects;
+
+/**
+ * A comparator that compares strings using a filter.
+ *
+ * @author Adrien Hopkins
+ * @since 2019-01-15
+ * @since v0.1.0
+ */
+public final class FilterComparator implements Comparator<String> {
+ /**
+ * The filter that the comparator is filtered by.
+ *
+ * @since 2019-01-15
+ * @since v0.1.0
+ */
+ private final String filter;
+ /**
+ * The comparator to use if the arguments are otherwise equal.
+ *
+ * @since 2019-01-15
+ * @since v0.1.0
+ */
+ private final Comparator<String> comparator;
+
+ /**
+ * Creates the {@code FilterComparator}.
+ *
+ * @param filter
+ * @since 2019-01-15
+ * @since v0.1.0
+ */
+ public FilterComparator(final String filter) {
+ this(filter, null);
+ }
+
+ /**
+ * Creates the {@code FilterComparator}.
+ *
+ * @param filter
+ * string to filter by
+ * @param comparator
+ * comparator to fall back to if all else fails, null is compareTo.
+ * @since 2019-01-15
+ * @since v0.1.0
+ * @throws NullPointerException
+ * if filter is null
+ */
+ public FilterComparator(final String filter, final Comparator<String> comparator) {
+ this.filter = Objects.requireNonNull(filter, "filter must not be null.");
+ this.comparator = comparator;
+ }
+
+ @Override
+ public int compare(final String arg0, final String arg1) {
+ // elements that start with the filter always go first
+ if (arg0.startsWith(this.filter) && !arg1.startsWith(this.filter))
+ return -1;
+ else if (!arg0.startsWith(this.filter) && arg1.startsWith(this.filter))
+ return 1;
+
+ // elements that contain the filter but don't start with them go next
+ if (arg0.contains(this.filter) && !arg1.contains(this.filter))
+ return -1;
+ else if (!arg0.contains(this.filter) && !arg1.contains(this.filter))
+ return 1;
+
+ // other elements go last
+ if (this.comparator == null)
+ return arg0.compareTo(arg1);
+ else
+ return this.comparator.compare(arg0, arg1);
+ }
+}
diff --git a/src/unitConverter/converterGUI/GridBagBuilder.java b/src/unitConverter/converterGUI/GridBagBuilder.java new file mode 100755 index 0000000..e036677 --- /dev/null +++ b/src/unitConverter/converterGUI/GridBagBuilder.java @@ -0,0 +1,479 @@ +/** + * 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.converterGUI; + +import java.awt.GridBagConstraints; +import java.awt.Insets; + +/** + * A builder for Java's {@link java.awt.GridBagConstraints} class. + * + * @author Adrien Hopkins + * @since 2018-11-30 + * @since v0.1.0 + */ +final class GridBagBuilder { + /** + * The built {@code GridBagConstraints}'s {@code gridx} property. + * <p> + * Specifies the cell containing the leading edge of the component's display area, where the first cell in a row has + * <code>gridx=0</code>. The leading edge of a component's display area is its left edge for a horizontal, + * left-to-right container and its right edge for a horizontal, right-to-left container. The value + * <code>RELATIVE</code> specifies that the component be placed immediately following the component that was added + * to the container just before this component was added. + * <p> + * The default value is <code>RELATIVE</code>. <code>gridx</code> should be a non-negative value. + * + * @serial + * @see #clone() + * @see java.awt.GridBagConstraints#gridy + * @see java.awt.ComponentOrientation + */ + private final int gridx; + + /** + * The built {@code GridBagConstraints}'s {@code gridy} property. + * <p> + * Specifies the cell at the top of the component's display area, where the topmost cell has <code>gridy=0</code>. + * The value <code>RELATIVE</code> specifies that the component be placed just below the component that was added to + * the container just before this component was added. + * <p> + * The default value is <code>RELATIVE</code>. <code>gridy</code> should be a non-negative value. + * + * @serial + * @see #clone() + * @see java.awt.GridBagConstraints#gridx + */ + private final int gridy; + + /** + * The built {@code GridBagConstraints}'s {@code gridwidth} property. + * <p> + * Specifies the number of cells in a row for the component's display area. + * <p> + * Use <code>REMAINDER</code> to specify that the component's display area will be from <code>gridx</code> to the + * last cell in the row. Use <code>RELATIVE</code> to specify that the component's display area will be from + * <code>gridx</code> to the next to the last one in its row. + * <p> + * <code>gridwidth</code> should be non-negative and the default value is 1. + * + * @serial + * @see #clone() + * @see java.awt.GridBagConstraints#gridheight + */ + private final int gridwidth; + + /** + * The built {@code GridBagConstraints}'s {@code gridheight} property. + * <p> + * Specifies the number of cells in a column for the component's display area. + * <p> + * Use <code>REMAINDER</code> to specify that the component's display area will be from <code>gridy</code> to the + * last cell in the column. Use <code>RELATIVE</code> to specify that the component's display area will be from + * <code>gridy</code> to the next to the last one in its column. + * <p> + * <code>gridheight</code> should be a non-negative value and the default value is 1. + * + * @serial + * @see #clone() + * @see java.awt.GridBagConstraints#gridwidth + */ + private final int gridheight; + + /** + * The built {@code GridBagConstraints}'s {@code weightx} property. + * <p> + * Specifies how to distribute extra horizontal space. + * <p> + * The grid bag layout manager calculates the weight of a column to be the maximum <code>weightx</code> of all the + * components in a column. If the resulting layout is smaller horizontally than the area it needs to fill, the extra + * space is distributed to each column in proportion to its weight. A column that has a weight of zero receives no + * extra space. + * <p> + * If all the weights are zero, all the extra space appears between the grids of the cell and the left and right + * edges. + * <p> + * The default value of this field is <code>0</code>. <code>weightx</code> should be a non-negative value. + * + * @serial + * @see #clone() + * @see java.awt.GridBagConstraints#weighty + */ + private double weightx; + + /** + * The built {@code GridBagConstraints}'s {@code weighty} property. + * <p> + * Specifies how to distribute extra vertical space. + * <p> + * The grid bag layout manager calculates the weight of a row to be the maximum <code>weighty</code> of all the + * components in a row. If the resulting layout is smaller vertically than the area it needs to fill, the extra + * space is distributed to each row in proportion to its weight. A row that has a weight of zero receives no extra + * space. + * <p> + * If all the weights are zero, all the extra space appears between the grids of the cell and the top and bottom + * edges. + * <p> + * The default value of this field is <code>0</code>. <code>weighty</code> should be a non-negative value. + * + * @serial + * @see #clone() + * @see java.awt.GridBagConstraints#weightx + */ + private double weighty; + + /** + * The built {@code GridBagConstraints}'s {@code anchor} property. + * <p> + * This field is used when the component is smaller than its display area. It determines where, within the display + * area, to place the component. + * <p> + * There are three kinds of possible values: orientation relative, baseline relative and absolute. Orientation + * relative values are interpreted relative to the container's component orientation property, baseline relative + * values are interpreted relative to the baseline and absolute values are not. The absolute values are: + * <code>CENTER</code>, <code>NORTH</code>, <code>NORTHEAST</code>, <code>EAST</code>, <code>SOUTHEAST</code>, + * <code>SOUTH</code>, <code>SOUTHWEST</code>, <code>WEST</code>, and <code>NORTHWEST</code>. The orientation + * relative values are: <code>PAGE_START</code>, <code>PAGE_END</code>, <code>LINE_START</code>, + * <code>LINE_END</code>, <code>FIRST_LINE_START</code>, <code>FIRST_LINE_END</code>, <code>LAST_LINE_START</code> + * and <code>LAST_LINE_END</code>. The baseline relative values are: <code>BASELINE</code>, + * <code>BASELINE_LEADING</code>, <code>BASELINE_TRAILING</code>, <code>ABOVE_BASELINE</code>, + * <code>ABOVE_BASELINE_LEADING</code>, <code>ABOVE_BASELINE_TRAILING</code>, <code>BELOW_BASELINE</code>, + * <code>BELOW_BASELINE_LEADING</code>, and <code>BELOW_BASELINE_TRAILING</code>. The default value is + * <code>CENTER</code>. + * + * @serial + * @see #clone() + * @see java.awt.ComponentOrientation + */ + private int anchor; + + /** + * The built {@code GridBagConstraints}'s {@code fill} property. + * <p> + * This field is used when the component's display area is larger than the component's requested size. It determines + * whether to resize the component, and if so, how. + * <p> + * The following values are valid for <code>fill</code>: + * + * <ul> + * <li><code>NONE</code>: Do not resize the component. + * <li><code>HORIZONTAL</code>: Make the component wide enough to fill its display area horizontally, but do not + * change its height. + * <li><code>VERTICAL</code>: Make the component tall enough to fill its display area vertically, but do not change + * its width. + * <li><code>BOTH</code>: Make the component fill its display area entirely. + * </ul> + * <p> + * The default value is <code>NONE</code>. + * + * @serial + * @see #clone() + */ + private int fill; + + /** + * The built {@code GridBagConstraints}'s {@code insets} property. + * <p> + * This field specifies the external padding of the component, the minimum amount of space between the component and + * the edges of its display area. + * <p> + * The default value is <code>new Insets(0, 0, 0, 0)</code>. + * + * @serial + * @see #clone() + */ + private Insets insets; + + /** + * The built {@code GridBagConstraints}'s {@code ipadx} property. + * <p> + * This field specifies the internal padding of the component, how much space to add to the minimum width of the + * component. The width of the component is at least its minimum width plus <code>ipadx</code> pixels. + * <p> + * The default value is <code>0</code>. + * + * @serial + * @see #clone() + * @see java.awt.GridBagConstraints#ipady + */ + private int ipadx; + + /** + * The built {@code GridBagConstraints}'s {@code ipady} property. + * <p> + * This field specifies the internal padding, that is, how much space to add to the minimum height of the component. + * The height of the component is at least its minimum height plus <code>ipady</code> pixels. + * <p> + * The default value is 0. + * + * @serial + * @see #clone() + * @see java.awt.GridBagConstraints#ipadx + */ + private int ipady; + + /** + * @param gridx + * x position + * @param gridy + * y position + * @since 2018-11-30 + * @since v0.1.0 + */ + public GridBagBuilder(final int gridx, final int gridy) { + this(gridx, gridy, 1, 1); + } + + /** + * @param gridx + * x position + * @param gridy + * y position + * @param gridwidth + * number of cells occupied horizontally + * @param gridheight + * number of cells occupied vertically + * @since 2018-11-30 + * @since v0.1.0 + */ + public GridBagBuilder(final int gridx, final int gridy, final int gridwidth, final int gridheight) { + this(gridx, gridy, gridwidth, gridheight, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, + new Insets(0, 0, 0, 0), 0, 0); + } + + /** + * @param gridx + * x position + * @param gridy + * y position + * @param gridwidth + * number of cells occupied horizontally + * @param gridheight + * number of cells occupied vertically + * @param weightx + * @param weighty + * @param anchor + * @param fill + * @param insets + * @param ipadx + * @param ipady + * @since 2018-11-30 + * @since v0.1.0 + */ + private GridBagBuilder(final int gridx, final int gridy, final int gridwidth, final int gridheight, + final double weightx, final double weighty, final int anchor, final int fill, final Insets insets, + final int ipadx, final int ipady) { + super(); + this.gridx = gridx; + this.gridy = gridy; + this.gridwidth = gridwidth; + this.gridheight = gridheight; + this.weightx = weightx; + this.weighty = weighty; + this.anchor = anchor; + this.fill = fill; + this.insets = (Insets) insets.clone(); + this.ipadx = ipadx; + this.ipady = ipady; + } + + /** + * @return {@code GridBagConstraints} created by this builder + * @since 2018-11-30 + * @since v0.1.0 + */ + public GridBagConstraints build() { + return new GridBagConstraints(this.gridx, this.gridy, this.gridwidth, this.gridheight, this.weightx, + this.weighty, this.anchor, this.fill, this.insets, this.ipadx, this.ipady); + } + + /** + * @return anchor + * @since 2018-11-30 + * @since v0.1.0 + */ + public int getAnchor() { + return this.anchor; + } + + /** + * @return fill + * @since 2018-11-30 + * @since v0.1.0 + */ + public int getFill() { + return this.fill; + } + + /** + * @return gridheight + * @since 2018-11-30 + * @since v0.1.0 + */ + public int getGridheight() { + return this.gridheight; + } + + /** + * @return gridwidth + * @since 2018-11-30 + * @since v0.1.0 + */ + public int getGridwidth() { + return this.gridwidth; + } + + /** + * @return gridx + * @since 2018-11-30 + * @since v0.1.0 + */ + public int getGridx() { + return this.gridx; + } + + /** + * @return gridy + * @since 2018-11-30 + * @since v0.1.0 + */ + public int getGridy() { + return this.gridy; + } + + /** + * @return insets + * @since 2018-11-30 + * @since v0.1.0 + */ + public Insets getInsets() { + return this.insets; + } + + /** + * @return ipadx + * @since 2018-11-30 + * @since v0.1.0 + */ + public int getIpadx() { + return this.ipadx; + } + + /** + * @return ipady + * @since 2018-11-30 + * @since v0.1.0 + */ + public int getIpady() { + return this.ipady; + } + + /** + * @return weightx + * @since 2018-11-30 + * @since v0.1.0 + */ + public double getWeightx() { + return this.weightx; + } + + /** + * @return weighty + * @since 2018-11-30 + * @since v0.1.0 + */ + public double getWeighty() { + return this.weighty; + } + + /** + * @param anchor + * anchor to set + * @since 2018-11-30 + * @since v0.1.0 + */ + public GridBagBuilder setAnchor(final int anchor) { + this.anchor = anchor; + return this; + } + + /** + * @param fill + * fill to set + * @since 2018-11-30 + * @since v0.1.0 + */ + public GridBagBuilder setFill(final int fill) { + this.fill = fill; + return this; + } + + /** + * @param insets + * insets to set + * @since 2018-11-30 + * @since v0.1.0 + */ + public GridBagBuilder setInsets(final Insets insets) { + this.insets = insets; + return this; + } + + /** + * @param ipadx + * ipadx to set + * @since 2018-11-30 + * @since v0.1.0 + */ + public GridBagBuilder setIpadx(final int ipadx) { + this.ipadx = ipadx; + return this; + } + + /** + * @param ipady + * ipady to set + * @since 2018-11-30 + * @since v0.1.0 + */ + public GridBagBuilder setIpady(final int ipady) { + this.ipady = ipady; + return this; + } + + /** + * @param weightx + * weightx to set + * @since 2018-11-30 + * @since v0.1.0 + */ + public GridBagBuilder setWeightx(final double weightx) { + this.weightx = weightx; + return this; + } + + /** + * @param weighty + * weighty to set + * @since 2018-11-30 + * @since v0.1.0 + */ + public GridBagBuilder setWeighty(final double weighty) { + this.weighty = weighty; + return this; + } +} diff --git a/src/unitConverter/converterGUI/UnitConverterGUI.java b/src/unitConverter/converterGUI/UnitConverterGUI.java new file mode 100755 index 0000000..b54e0da --- /dev/null +++ b/src/unitConverter/converterGUI/UnitConverterGUI.java @@ -0,0 +1,671 @@ +/** + * 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.converterGUI; + +import java.awt.BorderLayout; +import java.awt.GridLayout; +import java.io.File; +import java.math.BigDecimal; +import java.math.MathContext; +import java.util.ArrayList; +import java.util.Comparator; +import java.util.List; +import java.util.function.Predicate; + +import javax.swing.BorderFactory; +import javax.swing.JButton; +import javax.swing.JFrame; +import javax.swing.JList; +import javax.swing.JOptionPane; +import javax.swing.JPanel; +import javax.swing.JScrollPane; +import javax.swing.JSlider; +import javax.swing.JTabbedPane; +import javax.swing.JTextArea; +import javax.swing.JTextField; +import javax.swing.ListModel; +import javax.swing.ListSelectionModel; + +import unitConverter.UnitsDatabase; +import unitConverter.dimension.StandardDimensions; +import unitConverter.dimension.UnitDimension; +import unitConverter.unit.AbstractUnit; +import unitConverter.unit.NonlinearUnits; +import unitConverter.unit.SI; +import unitConverter.unit.Unit; +import unitConverter.unit.UnitPrefix; + +/** + * @author Adrien Hopkins + * @since 2018-12-27 + * @since v0.1.0 + */ +final class UnitConverterGUI { + private static class Presenter { + /** The presenter's associated view. */ + private final View view; + + /** The units known by the program. */ + private final UnitsDatabase units; + + /** The names of all of the units */ + private final List<String> unitNames; + + /** The names of all of the units, but filtered */ + private final DelegateListModel<String> unitNamesFiltered; + + /** The names of all of the prefixes */ + private final List<String> prefixNames; + + /** The names of all of the prefixes */ + private final DelegateListModel<String> prefixNamesFiltered; + + private final Comparator<String> prefixNameComparator; + + private int significantFigures = 6; + + /** + * Creates the presenter. + * + * @param view + * presenter's associated view + * @since 2018-12-27 + * @since v0.1.0 + */ + Presenter(final View view) { + this.view = view; + + // load initial units + this.units = new UnitsDatabase(); + this.units.addUnit("metre", SI.METRE); + this.units.addUnit("kilogram", SI.KILOGRAM); + this.units.addUnit("gram", SI.KILOGRAM.dividedBy(1000)); + this.units.addUnit("second", SI.SECOND); + this.units.addUnit("ampere", SI.AMPERE); + this.units.addUnit("kelvin", SI.KELVIN); + this.units.addUnit("mole", SI.MOLE); + this.units.addUnit("candela", SI.CANDELA); + this.units.addUnit("bit", SI.SI.getBaseUnit(StandardDimensions.INFORMATION)); + this.units.addUnit("unit", SI.SI.getBaseUnit(UnitDimension.EMPTY)); + // nonlinear units - must be loaded manually + this.units.addUnit("tempCelsius", NonlinearUnits.CELSIUS); + this.units.addUnit("tempFahrenheit", NonlinearUnits.FAHRENHEIT); + + this.units.addAllFromFile(new File("unitsfile.txt")); + + // a comparator that can be used to compare prefix names + // any name that does not exist is less than a name that does. + // otherwise, they are compared by value + this.prefixNameComparator = (o1, o2) -> { + if (!Presenter.this.units.containsPrefixName(o1)) + return -1; + else if (!Presenter.this.units.containsPrefixName(o2)) + return 1; + + final UnitPrefix p1 = Presenter.this.units.getPrefix(o1); + final UnitPrefix p2 = Presenter.this.units.getPrefix(o2); + + if (p1.getMultiplier() < p2.getMultiplier()) + return -1; + else if (p1.getMultiplier() > p2.getMultiplier()) + return 1; + + return o1.compareTo(o2); + }; + + this.unitNames = new ArrayList<>(this.units.prefixlessUnitNameSet()); + this.unitNames.sort(null); // sorts it using Comparable + + this.unitNamesFiltered = new DelegateListModel<>(new ArrayList<>(this.units.prefixlessUnitNameSet())); + this.unitNamesFiltered.sort(null); // sorts it using Comparable + + this.prefixNames = new ArrayList<>(this.units.prefixNameSet()); + this.prefixNames.sort(this.prefixNameComparator); // sorts it using my comparator + + this.prefixNamesFiltered = new DelegateListModel<>(new ArrayList<>(this.units.prefixNameSet())); + this.prefixNamesFiltered.sort(this.prefixNameComparator); // sorts it using my comparator + + System.out.printf("Successfully loaded %d units (%d base units)", AbstractUnit.getUnitCount(), + AbstractUnit.getBaseUnitCount()); + } + + /** + * Runs whenever the convert button is pressed. + * + * <p> + * Reads and parses a unit expression from the from and to boxes, then converts {@code from} to {@code to}. Any + * errors are shown in JOptionPanes. + * </p> + * + * @since 2019-01-26 + * @since v0.1.0 + */ + public final void convert() { + final String fromUnitString = this.view.getFromText(); + final String toUnitString = this.view.getToText(); + + // try to parse from + final Unit from; + try { + from = this.units.getUnitFromExpression(fromUnitString); + } catch (final IllegalArgumentException e) { + this.view.showErrorDialog("Parse Error", "Could not recognize text in From entry: " + e.getMessage()); + return; + } + + final double value; + // try to parse to + final Unit to; + try { + to = this.units.getUnitFromExpression(toUnitString); + } catch (final IllegalArgumentException e) { + this.view.showErrorDialog("Parse Error", "Could not recognize text in To entry: " + e.getMessage()); + return; + } + + // if I can't convert, leave + if (!from.canConvertTo(to)) { + this.view.showErrorDialog("Conversion Error", + String.format("Cannot convert between %s and %s", fromUnitString, toUnitString)); + return; + } + + value = to.convertFromBase(from.convertToBase(1)); + + // round value + final BigDecimal bigValue = new BigDecimal(value).round(new MathContext(this.significantFigures)); + String output = bigValue.toString(); + + // remove trailing zeroes + if (output.contains(".")) { + while (output.endsWith("0")) { + output = output.substring(0, output.length() - 1); + } + if (output.endsWith(".")) { + output = output.substring(0, output.length() - 1); + } + } + + this.view.setOutputText(String.format("%s = %s %s", fromUnitString, output, toUnitString)); + } + + /** + * Filters the filtered model for units + * + * @param filter + * filter to use + * @since 2019-01-15 + * @since v0.1.0 + */ + private final void filterFilteredPrefixModel(final Predicate<String> filter) { + this.prefixNamesFiltered.clear(); + for (final String prefixName : this.prefixNames) { + if (filter.test(prefixName)) { + this.prefixNamesFiltered.add(prefixName); + } + } + } + + /** + * Filters the filtered model for units + * + * @param filter + * filter to use + * @since 2019-01-15 + * @since v0.1.0 + */ + private final void filterFilteredUnitModel(final Predicate<String> filter) { + this.unitNamesFiltered.clear(); + for (final String unitName : this.unitNames) { + if (filter.test(unitName)) { + this.unitNamesFiltered.add(unitName); + } + } + } + + /** + * @return a list model of all of the unit keys + * @since 2019-01-14 + * @since v0.1.0 + */ + public final ListModel<String> keyListModel() { + return this.unitNamesFiltered; + } + + /** + * Runs whenever the prefix filter is changed. + * <p> + * Filters the prefix list then sorts it using a {@code FilterComparator}. + * </p> + * + * @since 2019-01-15 + * @since v0.1.0 + */ + public final void prefixFilterUpdated() { + final String filter = this.view.getPrefixFilterText(); + if (filter.equals("")) { + this.filterFilteredPrefixModel(t -> true); + } else { + this.filterFilteredPrefixModel(t -> t.contains(filter)); + } + this.prefixNamesFiltered.sort(new FilterComparator(filter)); + } + + /** + * @return a list model of all of the prefix names + * @since 2019-01-15 + */ + public final ListModel<String> prefixNameListModel() { + return this.prefixNamesFiltered; + } + + /** + * Runs whenever a prefix is selected in the viewer. + * <p> + * Shows its information in the text box to the right. + * </p> + * + * @since 2019-01-15 + * @since v0.1.0 + */ + public final void prefixSelected() { + final int index = this.view.getPrefixListSelection(); + if (index == -1) + return; + else { + final String prefixName = this.prefixNamesFiltered.get(index); + final UnitPrefix prefix = this.units.getPrefix(prefixName); + + this.view.setPrefixTextBoxText(String.format("%s%nMultiplier: %s", prefixName, prefix.getMultiplier())); + } + } + + /** + * @param significantFigures + * new value of significantFigures + * @since 2019-01-15 + */ + public final void setSignificantFigures(final int significantFigures) { + this.significantFigures = significantFigures; + } + + /** + * Runs whenever the unit filter is changed. + * <p> + * Filters the unit list then sorts it using a {@code FilterComparator}. + * </p> + * + * @since 2019-01-15 + * @since v0.1.0 + */ + public final void unitFilterUpdated() { + final String filter = this.view.getUnitFilterText(); + if (filter.equals("")) { + this.filterFilteredUnitModel(t -> true); + } else { + this.filterFilteredUnitModel(t -> t.contains(filter)); + } + this.unitNamesFiltered.sort(new FilterComparator(filter)); + } + + /** + * Runs whenever a unit is selected in the viewer. + * <p> + * Shows its information in the text box to the right. + * </p> + * + * @since 2019-01-15 + * @since v0.1.0 + */ + public void unitNameSelected() { + final int index = this.view.getUnitListSelection(); + if (index == -1) + return; + else { + final String unitName = this.unitNamesFiltered.get(index); + final Unit unit = this.units.getUnit(unitName); + + this.view.setUnitTextBoxText(unit.toString()); + } + } + } + + private static class View { + /** The view's frame. */ + private final JFrame frame; + /** The view's associated presenter. */ + private final Presenter presenter; + + /** The list of unit names in the unit viewer */ + private final JList<String> unitNameList; + /** The list of prefix names in the prefix viewer */ + private final JList<String> prefixNameList; + /** The unit search box in the unit viewer */ + private final JTextField unitFilterEntry; + /** The text box for unit data in the unit viewer */ + private final JTextArea unitTextBox; + /** The prefix search box in the prefix viewer */ + private final JTextField prefixFilterEntry; + /** The text box for prefix data in the prefix viewer */ + private final JTextArea prefixTextBox; + /** The "From" entry in the conversion panel */ + private final JTextField fromEntry; + /** The "To" entry in the conversion panel */ + private final JTextField toEntry; + /** The output area in the conversion panel */ + private final JTextArea output; + + /** + * Creates the {@code View}. + * + * @since 2019-01-14 + * @since v0.1.0 + */ + public View() { + this.presenter = new Presenter(this); + this.frame = new JFrame("Unit Converter"); + this.frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); + + // create the components + this.unitNameList = new JList<>(this.presenter.keyListModel()); + this.prefixNameList = new JList<>(this.presenter.prefixNameListModel()); + this.unitFilterEntry = new JTextField(); + this.unitTextBox = new JTextArea(); + this.prefixFilterEntry = new JTextField(); + this.prefixTextBox = new JTextArea(); + this.fromEntry = new JTextField(); + this.toEntry = new JTextField(); + this.output = new JTextArea(2, 32); + + // create more components + this.initComponents(); + + this.frame.pack(); + } + + /** + * @return text in "From" box in converter panel + * @since 2019-01-15 + * @since v0.1.0 + */ + public String getFromText() { + return this.fromEntry.getText(); + } + + /** + * @return text in prefix filter + * @since 2019-01-15 + * @since v0.1.0 + */ + public String getPrefixFilterText() { + return this.prefixFilterEntry.getText(); + } + + /** + * @return index of selected prefix + * @since 2019-01-15 + * @since v0.1.0 + */ + public int getPrefixListSelection() { + return this.prefixNameList.getSelectedIndex(); + } + + /** + * @return text in "To" box in converter panel + * @since 2019-01-26 + * @since v0.1.0 + */ + public String getToText() { + return this.toEntry.getText(); + } + + /** + * @return text in unit filter + * @see javax.swing.text.JTextComponent#getText() + */ + public String getUnitFilterText() { + return this.unitFilterEntry.getText(); + } + + /** + * @return index of selected unit + * @since 2019-01-15 + * @since v0.1.0 + */ + public int getUnitListSelection() { + return this.unitNameList.getSelectedIndex(); + } + + /** + * Starts up the application. + * + * @since 2018-12-27 + * @since v0.1.0 + */ + public final void init() { + this.frame.setVisible(true); + } + + /** + * Initializes the view's components. + * + * @since 2018-12-27 + * @since v0.1.0 + */ + private final void initComponents() { + final JPanel masterPanel = new JPanel(); + this.frame.add(masterPanel); + + masterPanel.setLayout(new BorderLayout()); + + { // pane with all of the tabs + final JTabbedPane masterPane = new JTabbedPane(); + masterPanel.add(masterPane, BorderLayout.CENTER); + + { // panel for unit conversion + final JPanel convertPanel = new JPanel(); + masterPane.addTab("Convert Units", convertPanel); + + convertPanel.setLayout(new GridLayout(5, 1)); + + { // panel for units to convert from + final JPanel fromPanel = new JPanel(); + convertPanel.add(fromPanel); + + fromPanel.setBorder(BorderFactory.createTitledBorder("From")); + fromPanel.setLayout(new GridLayout(1, 1)); + + { // entry for units + fromPanel.add(this.fromEntry); + } + } + + { // panel for units to convert to + final JPanel toPanel = new JPanel(); + convertPanel.add(toPanel); + + toPanel.setBorder(BorderFactory.createTitledBorder("To")); + toPanel.setLayout(new GridLayout(1, 1)); + + { // entry for units + toPanel.add(this.toEntry); + } + } + + { // button to convert + final JButton convertButton = new JButton("Convert!"); + convertPanel.add(convertButton); + + convertButton.addActionListener(e -> this.presenter.convert()); + } + + { // output of conversion + final JPanel outputPanel = new JPanel(); + convertPanel.add(outputPanel); + + outputPanel.setBorder(BorderFactory.createTitledBorder("Output")); + outputPanel.setLayout(new GridLayout(1, 1)); + + { // output + outputPanel.add(this.output); + this.output.setEditable(false); + } + } + + { // panel for specifying precision + final JPanel sigDigPanel = new JPanel(); + convertPanel.add(sigDigPanel); + + sigDigPanel.setBorder(BorderFactory.createTitledBorder("Significant Digits")); + + { // slider + final JSlider sigDigSlider = new JSlider(0, 12); + sigDigPanel.add(sigDigSlider); + + sigDigSlider.setMajorTickSpacing(4); + sigDigSlider.setMinorTickSpacing(1); + sigDigSlider.setSnapToTicks(true); + sigDigSlider.setPaintTicks(true); + sigDigSlider.setPaintLabels(true); + + sigDigSlider.addChangeListener( + e -> this.presenter.setSignificantFigures(sigDigSlider.getValue())); + } + } + } + + { // panel to look up units + final JPanel unitLookupPanel = new JPanel(); + masterPane.addTab("Unit Viewer", unitLookupPanel); + + unitLookupPanel.setLayout(new GridLayout()); + + { // panel for listing and searching + final JPanel listPanel = new JPanel(); + unitLookupPanel.add(listPanel); + + listPanel.setLayout(new BorderLayout()); + + { // unit search box + listPanel.add(this.unitFilterEntry, BorderLayout.PAGE_START); + this.unitFilterEntry.addCaretListener(e -> this.presenter.unitFilterUpdated()); + } + + { // a list of units + listPanel.add(new JScrollPane(this.unitNameList), BorderLayout.CENTER); + this.unitNameList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); // temp + this.unitNameList.addListSelectionListener(e -> { + this.presenter.unitNameSelected(); + }); + } + } + + { // the text box for unit's toString + unitLookupPanel.add(this.unitTextBox); + this.unitTextBox.setEditable(false); + this.unitTextBox.setLineWrap(true); + } + } + + { // panel to look up prefixes + final JPanel prefixLookupPanel = new JPanel(); + masterPane.addTab("Prefix Viewer", prefixLookupPanel); + + prefixLookupPanel.setLayout(new GridLayout(1, 2)); + + { // panel for listing and seaching + final JPanel prefixListPanel = new JPanel(); + prefixLookupPanel.add(prefixListPanel); + + prefixListPanel.setLayout(new BorderLayout()); + + { // prefix search box + prefixListPanel.add(this.prefixFilterEntry, BorderLayout.PAGE_START); + this.prefixFilterEntry.addCaretListener(e -> this.presenter.prefixFilterUpdated()); + } + + { // a list of prefixes + prefixListPanel.add(new JScrollPane(this.prefixNameList), BorderLayout.CENTER); + this.prefixNameList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); // temp + this.prefixNameList.addListSelectionListener(e -> { + this.presenter.prefixSelected(); + }); + } + } + + { // the text box for prefix's toString + prefixLookupPanel.add(this.prefixTextBox); + this.unitTextBox.setEditable(false); + } + } + } + } + + /** + * Sets the text in the output of the conversion panel. + * + * @param text + * text to set + * @since 2019-01-15 + * @since v0.1.0 + */ + public void setOutputText(final String text) { + this.output.setText(text); + } + + /** + * Sets the text of the prefix text box. + * + * @param text + * text to set + * @since 2019-01-15 + * @since v0.1.0 + */ + public void setPrefixTextBoxText(final String text) { + this.prefixTextBox.setText(text); + } + + /** + * Sets the text of the unit text box. + * + * @param t + * text to set + * @see javax.swing.text.JTextComponent#setText(java.lang.String) + */ + public void setUnitTextBoxText(final String t) { + this.unitTextBox.setText(t); + } + + /** + * Shows an error dialog. + * + * @param title + * title of dialog + * @param message + * message in dialog + * @since 2019-01-14 + * @since v0.1.0 + */ + public void showErrorDialog(final String title, final String message) { + JOptionPane.showMessageDialog(this.frame, message, title, JOptionPane.ERROR_MESSAGE); + } + } + + public static void main(final String[] args) { + new View().init(); + } +} diff --git a/src/unitConverter/converter/package-info.java b/src/unitConverter/converterGUI/package-info.java index 6148784..9f7fa57 100644 --- a/src/unitConverter/converter/package-info.java +++ b/src/unitConverter/converterGUI/package-info.java @@ -20,4 +20,4 @@ * @author Adrien Hopkins * @since 2019-01-25 */ -package unitConverter.converter;
\ No newline at end of file +package unitConverter.converterGUI;
\ No newline at end of file diff --git a/src/unitConverter/dimension/BaseDimension.java b/src/unitConverter/dimension/BaseDimension.java index 6a727a9..0c09dce 100755 --- a/src/unitConverter/dimension/BaseDimension.java +++ b/src/unitConverter/dimension/BaseDimension.java @@ -21,17 +21,20 @@ package unitConverter.dimension; * * @author Adrien Hopkins * @since 2018-12-22 + * @since v0.1.0 */ public interface BaseDimension { /** * @return the dimension's name - * @since 2019-01-25 + * @since 2018-12-22 + * @since v0.1.0 */ String getName(); /** * @return a short string (usually one character) that represents this base dimension * @since 2018-12-22 + * @since v0.1.0 */ String getSymbol(); } diff --git a/src/unitConverter/dimension/OtherBaseDimension.java b/src/unitConverter/dimension/OtherBaseDimension.java index 2ab19b3..8c6d25d 100755 --- a/src/unitConverter/dimension/OtherBaseDimension.java +++ b/src/unitConverter/dimension/OtherBaseDimension.java @@ -23,6 +23,7 @@ import java.util.Objects; * * @author Adrien Hopkins * @since 2019-01-14 + * @since v0.1.0 */ public enum OtherBaseDimension implements BaseDimension { INFORMATION("Info"), CURRENCY("$$"); @@ -36,6 +37,7 @@ public enum OtherBaseDimension implements BaseDimension { * @param symbol * dimension's symbol * @since 2018-12-11 + * @since v0.1.0 */ private OtherBaseDimension(final String symbol) { this.symbol = Objects.requireNonNull(symbol, "symbol must not be null."); diff --git a/src/unitConverter/dimension/SIBaseDimension.java b/src/unitConverter/dimension/SIBaseDimension.java index b731b00..928d8d6 100755 --- a/src/unitConverter/dimension/SIBaseDimension.java +++ b/src/unitConverter/dimension/SIBaseDimension.java @@ -23,6 +23,7 @@ import java.util.Objects; *
* @author Adrien Hopkins
* @since 2018-12-11
+ * @since v0.1.0
*/
public enum SIBaseDimension implements BaseDimension {
LENGTH("L"), MASS("M"), TIME("T"), ELECTRIC_CURRENT("I"), TEMPERATURE("\u0398"), // u0398 is the theta symbol
@@ -37,6 +38,7 @@ public enum SIBaseDimension implements BaseDimension { * @param symbol
* dimension's symbol
* @since 2018-12-11
+ * @since v0.1.0
*/
private SIBaseDimension(final String symbol) {
this.symbol = Objects.requireNonNull(symbol, "symbol must not be null.");
diff --git a/src/unitConverter/dimension/StandardDimensions.java b/src/unitConverter/dimension/StandardDimensions.java index c830f00..b3edb7d 100755 --- a/src/unitConverter/dimension/StandardDimensions.java +++ b/src/unitConverter/dimension/StandardDimensions.java @@ -21,6 +21,7 @@ package unitConverter.dimension; *
* @author Adrien Hopkins
* @since 2018-12-11
+ * @since v0.1.0
*/
public final class StandardDimensions {
// base dimensions
diff --git a/src/unitConverter/dimension/UnitDimension.java b/src/unitConverter/dimension/UnitDimension.java index ba2a750..40e5bbc 100755 --- a/src/unitConverter/dimension/UnitDimension.java +++ b/src/unitConverter/dimension/UnitDimension.java @@ -29,12 +29,14 @@ import java.util.Set; *
* @author Adrien Hopkins
* @since 2018-12-11
+ * @since v0.1.0
*/
public final class UnitDimension {
/**
* The unit dimension where every exponent is zero
*
* @since 2018-12-12
+ * @since v0.1.0
*/
public static final UnitDimension EMPTY = new UnitDimension(new HashMap<>());
@@ -45,6 +47,7 @@ public final class UnitDimension { * dimension to get
* @return unit dimension
* @since 2018-12-11
+ * @since v0.1.0
*/
public static final UnitDimension getBase(final BaseDimension dimension) {
final Map<BaseDimension, Integer> map = new HashMap<>();
@@ -56,6 +59,7 @@ public final class UnitDimension { * The base dimensions that make up this dimension.
*
* @since 2018-12-11
+ * @since v0.1.0
*/
final Map<BaseDimension, Integer> exponents;
@@ -65,6 +69,7 @@ public final class UnitDimension { * @param exponents
* base dimensions that make up this dimension
* @since 2018-12-11
+ * @since v0.1.0
*/
private UnitDimension(final Map<BaseDimension, Integer> exponents) {
this.exponents = new HashMap<>(exponents);
@@ -77,6 +82,7 @@ public final class UnitDimension { * other dimension
* @return quotient of two dimensions
* @since 2018-12-11
+ * @since v0.1.0
*/
public UnitDimension dividedBy(final UnitDimension other) {
final Map<BaseDimension, Integer> map = new HashMap<>(this.exponents);
@@ -119,6 +125,7 @@ public final class UnitDimension { /**
* @return a set of all of the base dimensions with non-zero exponents that make up this dimension.
* @since 2018-12-12
+ * @since v0.1.0
*/
public final Set<BaseDimension> getBaseSet() {
final Set<BaseDimension> dimensions = new HashSet<>();
@@ -140,6 +147,7 @@ public final class UnitDimension { * dimension to check
* @return exponent for that dimension
* @since 2018-12-12
+ * @since v0.1.0
*/
public int getExponent(final BaseDimension dimension) {
return this.exponents.getOrDefault(dimension, 0);
@@ -153,6 +161,7 @@ public final class UnitDimension { /**
* @return true if this dimension is a base, i.e. it has one exponent of one and no other nonzero exponents
* @since 2019-01-15
+ * @since v0.1.0
*/
public boolean isBase() {
int oneCount = 0;
@@ -174,6 +183,7 @@ public final class UnitDimension { * other dimension
* @return product of two dimensions
* @since 2018-12-11
+ * @since v0.1.0
*/
public UnitDimension times(final UnitDimension other) {
final Map<BaseDimension, Integer> map = new HashMap<>(this.exponents);
@@ -196,6 +206,7 @@ public final class UnitDimension { * exponent
* @return result of exponientation
* @since 2019-01-15
+ * @since v0.1.0
*/
public UnitDimension toExponent(final int exp) {
final Map<BaseDimension, Integer> map = new HashMap<>(this.exponents);
diff --git a/src/unitConverter/dimension/UnitDimensionTest.java b/src/unitConverter/dimension/UnitDimensionTest.java index 603320b..86db1b8 100755 --- a/src/unitConverter/dimension/UnitDimensionTest.java +++ b/src/unitConverter/dimension/UnitDimensionTest.java @@ -30,22 +30,43 @@ import static unitConverter.dimension.StandardDimensions.VOLUME; import org.junit.jupiter.api.Test; /** + * Tests for {@link UnitDimension}. + * * @author Adrien Hopkins * @since 2018-12-12 + * @since v0.1.0 */ class UnitDimensionTest { + /** + * Tests {@link UnitDimension#equals} + * + * @since 2018-12-12 + * @since v0.1.0 + */ @Test void testEquals() { assertEquals(LENGTH, LENGTH); assertFalse(LENGTH.equals(QUANTITY)); } + /** + * Tests {@code UnitDimension}'s exponentiation + * + * @since 2019-01-15 + * @since v0.1.0 + */ @Test void testExponents() { assertEquals(1, LENGTH.getExponent(SIBaseDimension.LENGTH)); assertEquals(3, VOLUME.getExponent(SIBaseDimension.LENGTH)); } + /** + * Tests {@code UnitDimension}'s multiplication and division. + * + * @since 2018-12-12 + * @since v0.1.0 + */ @Test void testMultiplicationAndDivision() { assertEquals(AREA, LENGTH.times(LENGTH)); diff --git a/src/unitConverter/unit/AbstractUnit.java b/src/unitConverter/unit/AbstractUnit.java new file mode 100644 index 0000000..24814e8 --- /dev/null +++ b/src/unitConverter/unit/AbstractUnit.java @@ -0,0 +1,172 @@ +/** + * Copyright (C) 2019 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; + +import java.util.Objects; + +import unitConverter.dimension.UnitDimension; + +/** + * The default abstract implementation of the {@code Unit} interface. + * + * @author Adrien Hopkins + * @since 2018-12-22 + * @since v0.1.0 + */ +public abstract class AbstractUnit implements Unit { + /** + * The number of units created, including base units. + * + * @since 2019-01-02 + * @since v0.1.0 + */ + private static long unitCount = 0; + + /** + * The number of base units created. + * + * @since 2019-01-02 + * @since v0.1.0 + */ + private static long baseUnitCount = 0; + + /** + * @return number of base units created + * @since 2019-01-02 + * @since v0.1.0 + */ + public static final long getBaseUnitCount() { + return baseUnitCount; + } + + /** + * @return number of units created + * @since 2019-01-02 + * @since v0.1.0 + */ + public static final long getUnitCount() { + return unitCount; + } + + /** + * Increments the number of base units. + * + * @since 2019-01-15 + * @since v0.1.0 + */ + public static final void incrementBaseUnitCounter() { + baseUnitCount++; + } + + /** + * Increments the number of units. + * + * @since 2019-01-15 + * @since v0.1.0 + */ + public static final void incrementUnitCounter() { + unitCount++; + } + + /** + * The dimension, or what the unit measures. + * + * @since 2018-12-22 + * @since v0.1.0 + */ + private final UnitDimension dimension; + + /** + * The unit's base unit. Values converted by {@code convertFromBase} and {@code convertToBase} are expressed in this + * unit. + * + * @since 2018-12-22 + * @since v0.1.0 + */ + private final BaseUnit base; + + /** + * The system that this unit is a part of. + * + * @since 2018-12-23 + * @since v0.1.0 + */ + private final UnitSystem system; + + /** + * Creates the {@code AbstractUnit}. + * + * @param base + * unit's base + * @throws NullPointerException + * if name, symbol or base is null + * @since 2018-12-22 + * @since v0.1.0 + */ + public AbstractUnit(final BaseUnit base) { + this.base = Objects.requireNonNull(base, "base must not be null."); + this.dimension = this.base.getDimension(); + this.system = this.base.getSystem(); + } + + /** + * Creates the {@code AbstractUnit} using a unique dimension. This constructor is for making base units and should + * only be used by {@code BaseUnit}. + * + * @param dimension + * dimension measured by unit + * @param system + * system that unit is a part of + * @throws AssertionError + * if this constructor is not run by {@code BaseUnit} or a subclass + * @throws NullPointerException + * if name, symbol or dimension is null + * @since 2018-12-23 + * @since v0.1.0 + */ + AbstractUnit(final UnitDimension dimension, final UnitSystem system) { + // try to set this as a base unit + if (this instanceof BaseUnit) { + this.base = (BaseUnit) this; + } else + throw new AssertionError(); + + this.dimension = Objects.requireNonNull(dimension, "dimension must not be null."); + this.system = Objects.requireNonNull(system, "system must not be null."); + } + + @Override + public final BaseUnit getBase() { + return this.base; + } + + @Override + public final UnitDimension getDimension() { + return this.dimension; + } + + @Override + public final UnitSystem getSystem() { + return this.system; + } + + // TODO document and revise units' toString methods + @Override + public String toString() { + return String.format("%s-derived unit of dimension %s", this.getSystem(), this.getDimension()); + } +} diff --git a/src/unitConverter/unit/BaseUnit.java b/src/unitConverter/unit/BaseUnit.java new file mode 100755 index 0000000..fe36c45 --- /dev/null +++ b/src/unitConverter/unit/BaseUnit.java @@ -0,0 +1,180 @@ +/** + * 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; + +import java.util.Objects; + +import unitConverter.dimension.UnitDimension; + +/** + * A unit that is the base for its dimension. It does not have to be for a base dimension, so units like the Newton and + * Joule are still base units. + * + * @author Adrien Hopkins + * @since 2018-12-23 + * @since v0.1.0 + */ +public final class BaseUnit extends AbstractUnit { + /** + * Is this unit a full base (i.e. m, s, ... but not N, J, ...) + * + * @since 2019-01-15 + * @since v0.1.0 + */ + private final boolean isFullBase; + + /** + * Creates the {@code BaseUnit}. + * + * @param dimension + * dimension measured by unit + * @param system + * system that unit is a part of + * @param name + * name of unit + * @param symbol + * symbol of unit + * @since 2018-12-23 + * @since v0.1.0 + */ + BaseUnit(final UnitDimension dimension, final UnitSystem system) { + super(dimension, system); + this.isFullBase = dimension.isBase(); + } + + /** + * @return this unit as a {@code LinearUnit} + * @since 2019-01-25 + * @since v0.1.0 + */ + public LinearUnit asLinearUnit() { + return this.times(1); + } + + @Override + public double convertFromBase(final double value) { + return value; + } + + @Override + public double convertToBase(final double value) { + return value; + } + + /** + * Divides this unit by another unit. + * + * @param other + * unit to divide by + * @return quotient of two units + * @throws IllegalArgumentException + * if this unit's system is not other's system + * @throws NullPointerException + * if other is null + * @since 2018-12-22 + * @since v0.1.0 + */ + public BaseUnit dividedBy(final BaseUnit other) { + Objects.requireNonNull(other, "other must not be null."); + if (!this.getSystem().equals(other.getSystem())) + throw new IllegalArgumentException("Incompatible base units for division."); + return new BaseUnit(this.getDimension().dividedBy(other.getDimension()), this.getSystem()); + } + + /** + * Divides this unit by a divisor + * + * @param divisor + * amount to divide by + * @return quotient + * @since 2018-12-23 + * @since v0.1.0 + */ + public LinearUnit dividedBy(final double divisor) { + return new LinearUnit(this, 1 / divisor); + } + + @Override + public boolean equals(final Object obj) { + if (!(obj instanceof BaseUnit)) + return false; + final BaseUnit other = (BaseUnit) obj; + return Objects.equals(this.getSystem(), other.getSystem()) + && Objects.equals(this.getDimension(), other.getDimension()); + } + + @Override + public int hashCode() { + final int prime = 31; + int result = 1; + result = result * prime + this.getSystem().hashCode(); + result = result * prime + this.getDimension().hashCode(); + return result; + } + + /** + * Multiplies this unit by another unit. + * + * @param other + * unit to multiply by + * @return product of two units + * @throws IllegalArgumentException + * if this unit's system is not other's system + * @throws NullPointerException + * if other is null + * @since 2018-12-22 + * @since v0.1.0 + */ + public BaseUnit times(final BaseUnit other) { + Objects.requireNonNull(other, "other must not be null."); + if (!this.getSystem().equals(other.getSystem())) + throw new IllegalArgumentException("Incompatible base units for multiplication."); + return new BaseUnit(this.getDimension().times(other.getDimension()), this.getSystem()); + } + + /** + * Multiplies this unit by a multiplier. + * + * @param multiplier + * amount to multiply by + * @return product + * @since 2018-12-23 + * @since v0.1.0 + */ + public LinearUnit times(final double multiplier) { + return new LinearUnit(this, multiplier); + } + + /** + * Returns this unit, but to an exponent. + * + * @param exponent + * exponent + * @return result of exponentiation + * @since 2019-01-15 + * @since v0.1.0 + */ + public BaseUnit toExponent(final int exponent) { + return this.getSystem().getBaseUnit(this.getDimension().toExponent(exponent)); + } + + @Override + public String toString() { + return String.format("%s base unit of%s dimension %s", this.getSystem(), this.isFullBase ? " base" : "", + this.getDimension()); + } +} diff --git a/src/unitConverter/unit/DefaultUnitPrefix.java b/src/unitConverter/unit/DefaultUnitPrefix.java new file mode 100755 index 0000000..d19161b --- /dev/null +++ b/src/unitConverter/unit/DefaultUnitPrefix.java @@ -0,0 +1,67 @@ +/** + * 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; + +import java.util.Objects; + +/** + * The default implementation of {@code UnitPrefix}, which contains a multiplier and nothing else. + * + * @author Adrien Hopkins + * @since 2019-01-14 + * @since v0.1.0 + */ +public final class DefaultUnitPrefix implements UnitPrefix { + private final double multiplier; + + /** + * Creates the {@code DefaultUnitPrefix}. + * + * @param multiplier + * @since 2019-01-14 + */ + public DefaultUnitPrefix(final double multiplier) { + this.multiplier = multiplier; + } + + @Override + public boolean equals(final Object obj) { + if (this == obj) + return true; + if (obj == null) + return false; + if (!(obj instanceof DefaultUnitPrefix)) + return false; + final DefaultUnitPrefix other = (DefaultUnitPrefix) obj; + return Double.doubleToLongBits(this.multiplier) == Double.doubleToLongBits(other.multiplier); + } + + @Override + public double getMultiplier() { + return this.multiplier; + } + + @Override + public int hashCode() { + return Objects.hash(this.multiplier); + } + + @Override + public String toString() { + return String.format("Unit prefix equal to %s", this.multiplier); + } +} diff --git a/src/unitConverter/unit/LinearUnit.java b/src/unitConverter/unit/LinearUnit.java new file mode 100644 index 0000000..b786b3b --- /dev/null +++ b/src/unitConverter/unit/LinearUnit.java @@ -0,0 +1,184 @@ +/** + * Copyright (C) 2019 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; + +import java.util.Objects; + +import unitConverter.dimension.UnitDimension; + +/** + * A unit that is equal to a certain number multiplied by its base. + * + * @author Adrien Hopkins + * @since 2018-12-22 + * @since v0.1.0 + */ +public final class LinearUnit extends AbstractUnit { + /** + * The value of one of this unit in this unit's base unit + * + * @since 2018-12-22 + * @since v0.1.0 + */ + private final double conversionFactor; + + /** + * + * Creates the {@code LinearUnit}. + * + * @param base + * unit's base + * @param conversionFactor + * value of one of this unit in its base + * @since 2018-12-23 + * @since v0.1.0 + */ + LinearUnit(final BaseUnit base, final double conversionFactor) { + super(base); + this.conversionFactor = conversionFactor; + } + + /** + * Creates the {@code LinearUnit} as a base unit. + * + * @param dimension + * dimension measured by unit + * @param system + * system unit is part of + * @since 2019-01-25 + * @since v0.1.0 + */ + LinearUnit(final UnitDimension dimension, final UnitSystem system, final double conversionFactor) { + super(dimension, system); + this.conversionFactor = conversionFactor; + } + + @Override + public double convertFromBase(final double value) { + return value / this.getConversionFactor(); + } + + @Override + public double convertToBase(final double value) { + return value * this.getConversionFactor(); + } + + /** + * Divides this unit by a scalar. + * + * @param divisor + * scalar to divide by + * @return quotient + * @since 2018-12-23 + * @since v0.1.0 + */ + public LinearUnit dividedBy(final double divisor) { + return new LinearUnit(this.getBase(), this.getConversionFactor() / divisor); + } + + /** + * Divides this unit by another unit. + * + * @param other + * unit to divide by + * @return quotient of two units + * @throws NullPointerException + * if other is null + * @since 2018-12-22 + * @since v0.1.0 + */ + public LinearUnit dividedBy(final LinearUnit other) { + Objects.requireNonNull(other, "other must not be null"); + final BaseUnit base = this.getBase().dividedBy(other.getBase()); + return new LinearUnit(base, this.getConversionFactor() / other.getConversionFactor()); + } + + @Override + public boolean equals(final Object obj) { + if (!(obj instanceof LinearUnit)) + return false; + final LinearUnit other = (LinearUnit) obj; + return Objects.equals(this.getBase(), other.getBase()) + && Objects.equals(this.getConversionFactor(), other.getConversionFactor()); + } + + /** + * @return conversionFactor + * @since 2018-12-22 + * @since v0.1.0 + */ + public final double getConversionFactor() { + return this.conversionFactor; + } + + @Override + public int hashCode() { + final int prime = 31; + int result = 1; + result = result * prime + this.getBase().hashCode(); + result = result * prime + Double.hashCode(this.getConversionFactor()); + return result; + } + + /** + * Multiplies this unit by a scalar. + * + * @param multiplier + * scalar to multiply by + * @return product + * @since 2018-12-23 + * @since v0.1.0 + */ + public LinearUnit times(final double multiplier) { + return new LinearUnit(this.getBase(), this.getConversionFactor() * multiplier); + } + + /** + * Multiplies this unit by another unit. + * + * @param other + * unit to multiply by= + * @return product of two units + * @throws NullPointerException + * if other is null + * @since 2018-12-22 + * @since v0.1.0 + */ + public LinearUnit times(final LinearUnit other) { + Objects.requireNonNull(other, "other must not be null"); + final BaseUnit base = this.getBase().times(other.getBase()); + return new LinearUnit(base, this.getConversionFactor() * other.getConversionFactor()); + } + + /** + * Returns this unit but to an exponent. + * + * @param exponent + * exponent to exponientate unit to + * @return exponientated unit + * @since 2019-01-15 + * @since v0.1.0 + */ + public LinearUnit toExponent(final int exponent) { + return new LinearUnit(this.getBase().toExponent(exponent), Math.pow(this.conversionFactor, exponent)); + } + + @Override + public String toString() { + return super.toString() + String.format(" (equal to %s * base)", this.getConversionFactor()); + } +} diff --git a/src/unitConverter/unit/NonlinearUnits.java b/src/unitConverter/unit/NonlinearUnits.java new file mode 100755 index 0000000..ec1874c --- /dev/null +++ b/src/unitConverter/unit/NonlinearUnits.java @@ -0,0 +1,57 @@ +/** + * 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 + * @since v0.1.0 + */ +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(); + } +} diff --git a/src/unitConverter/unit/SI.java b/src/unitConverter/unit/SI.java new file mode 100644 index 0000000..54eb4c5 --- /dev/null +++ b/src/unitConverter/unit/SI.java @@ -0,0 +1,74 @@ +/** + * 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; + +import java.util.HashSet; +import java.util.Objects; +import java.util.Set; + +import unitConverter.dimension.StandardDimensions; +import unitConverter.dimension.UnitDimension; + +/** + * The SI, which holds all SI units + * + * @author Adrien Hopkins + * @since 2018-12-23 + * @since v0.1.0 + */ +public enum SI implements UnitSystem { + SI; + + /** + * This system's base units. + * + * @since 2019-01-25 + * @since v0.1.0 + */ + private static final Set<BaseUnit> baseUnits = new HashSet<>(); + + // base units + public static final BaseUnit METRE = SI.getBaseUnit(StandardDimensions.LENGTH); + public static final BaseUnit KILOGRAM = SI.getBaseUnit(StandardDimensions.MASS); + public static final BaseUnit SECOND = SI.getBaseUnit(StandardDimensions.TIME); + public static final BaseUnit AMPERE = SI.getBaseUnit(StandardDimensions.ELECTRIC_CURRENT); + public static final BaseUnit KELVIN = SI.getBaseUnit(StandardDimensions.TEMPERATURE); + public static final BaseUnit MOLE = SI.getBaseUnit(StandardDimensions.QUANTITY); + public static final BaseUnit CANDELA = SI.getBaseUnit(StandardDimensions.LUMINOUS_INTENSITY); + + @Override + public BaseUnit getBaseUnit(final UnitDimension dimension) { + // try to find an existing unit before creating a new one + + Objects.requireNonNull(dimension, "dimension must not be null."); + for (final BaseUnit unit : baseUnits) { + // it will be equal since the conditions for equality are dimension and system, + // and system is always SI. + if (unit.getDimension().equals(dimension)) + return unit; + } + // could not find an existing base unit + final BaseUnit unit = new BaseUnit(dimension, this); + baseUnits.add(unit); + return unit; + } + + @Override + public String getName() { + return "SI"; + } +} diff --git a/src/unitConverter/unit/SIPrefix.java b/src/unitConverter/unit/SIPrefix.java new file mode 100755 index 0000000..54625fb --- /dev/null +++ b/src/unitConverter/unit/SIPrefix.java @@ -0,0 +1,54 @@ +/** + * 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; + +/** + * The SI prefixes. + * + * @author Adrien Hopkins + * @since 2019-01-14 + * @since v0.1.0 + */ +public enum SIPrefix implements UnitPrefix { + DECA(10), HECTO(100), KILO(1e3), MEGA(1e6), GIGA(1e9), TERA(1e12), PETA(1e15), EXA(1e18), ZETTA(1e21), YOTTA( + 1e24), DECI(0.1), CENTI(0.01), MILLI( + 1e-3), MICRO(1e-6), NANO(1e-9), PICO(1e-12), FEMTO(1e-15), ATTO(1e-18), ZEPTO(1e-21), YOCTO(1e-24); + + private final double multiplier; + + /** + * Creates the {@code SIPrefix}. + * + * @param multiplier + * prefix's multiplier + * @since 2019-01-14 + * @since v0.1.0 + */ + private SIPrefix(final double multiplier) { + this.multiplier = multiplier; + } + + /** + * @return value + * @since 2019-01-14 + * @since v0.1.0 + */ + @Override + public final double getMultiplier() { + return this.multiplier; + } +} diff --git a/src/unitConverter/unit/Unit.java b/src/unitConverter/unit/Unit.java index 3e7f9da..54f1423 100755 --- a/src/unitConverter/unit/Unit.java +++ b/src/unitConverter/unit/Unit.java @@ -25,6 +25,7 @@ import unitConverter.dimension.UnitDimension; * * @author Adrien Hopkins * @since 2018-12-22 + * @since v0.1.0 */ public interface Unit { /** @@ -34,6 +35,7 @@ public interface Unit { * unit to test with * @return true if the units are compatible * @since 2019-01-13 + * @since v0.1.0 */ default boolean canConvertTo(final Unit other) { return Objects.equals(this.getBase(), other.getBase()); @@ -53,6 +55,7 @@ public interface Unit { * value expressed in <b>base</b> unit * @return value expressed in <b>this</b> unit * @since 2018-12-22 + * @since v0.1.0 */ double convertFromBase(double value); @@ -70,6 +73,7 @@ public interface Unit { * value expressed in <b>this</b> unit * @return value expressed in <b>base</b> unit * @since 2018-12-22 + * @since v0.1.0 */ double convertToBase(double value); @@ -86,18 +90,21 @@ public interface Unit { * * @return base unit associated with this unit * @since 2018-12-22 + * @since v0.1.0 */ - Unit getBase(); + BaseUnit getBase(); /** * @return dimension measured by this unit * @since 2018-12-22 + * @since v0.1.0 */ UnitDimension getDimension(); /** * @return system that this unit is a part of * @since 2018-12-23 + * @since v0.1.0 */ UnitSystem getSystem(); } diff --git a/src/unitConverter/unit/UnitPrefix.java b/src/unitConverter/unit/UnitPrefix.java new file mode 100755 index 0000000..a0c1b7c --- /dev/null +++ b/src/unitConverter/unit/UnitPrefix.java @@ -0,0 +1,33 @@ +/** + * 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; + +/** + * A prefix that can be attached onto the front of any unit, which multiplies it by a certain value + * + * @author Adrien Hopkins + * @since 2019-01-14 + * @since v0.1.0 + */ +public interface UnitPrefix { + /** + * @return this prefix's multiplier + * @since 2019-01-14 + * @since v0.1.0 + */ + double getMultiplier(); +} diff --git a/src/unitConverter/unit/UnitSystem.java b/src/unitConverter/unit/UnitSystem.java index 2e3a5d8..ce8c249 100755 --- a/src/unitConverter/unit/UnitSystem.java +++ b/src/unitConverter/unit/UnitSystem.java @@ -16,16 +16,38 @@ */ package unitConverter.unit; +import java.util.Objects; + +import unitConverter.dimension.UnitDimension; + /** * A system of units. Each unit should be aware of its system. * * @author Adrien Hopkins * @since 2018-12-23 + * @since v0.1.0 */ public interface UnitSystem { /** - * @return name of system + * Gets a base unit for this system and the provided dimension. + * + * @param dimension + * dimension used by base unit + * @return base unit + * @throws NullPointerException + * if dimension is null * @since 2019-01-25 + * @since v0.1.0 + */ + default BaseUnit getBaseUnit(final UnitDimension dimension) { + Objects.requireNonNull(dimension, "dimension must not be null."); + return new BaseUnit(dimension, this); + } + + /** + * @return name of system + * @since 2018-12-23 + * @since v0.1.0 */ String getName(); } diff --git a/src/unitConverter/unit/UnitTest.java b/src/unitConverter/unit/UnitTest.java new file mode 100755 index 0000000..c3237eb --- /dev/null +++ b/src/unitConverter/unit/UnitTest.java @@ -0,0 +1,47 @@ +/** + * 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; + +import static org.junit.jupiter.api.Assertions.assertEquals; + +import org.junit.jupiter.api.Test; + +import unitConverter.dimension.StandardDimensions; + +/** + * Testing the various Unit classes + * + * @author Adrien Hopkins + * @since 2018-12-22 + */ +class UnitTest { + @Test + void testConversion() { + final BaseUnit metre = SI.METRE; + final Unit inch = metre.times(0.0254); + + assertEquals(1.9, inch.convertToBase(75), 0.01); + } + + @Test + void testEquals() { + final BaseUnit metre = SI.METRE; + final Unit meter = SI.SI.getBaseUnit(StandardDimensions.LENGTH); + + assertEquals(metre, meter); + } +} |