599 lines
19 KiB
Java
599 lines
19 KiB
Java
package it.cavallium.warppi.util;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.math.BigDecimal;
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import java.math.BigInteger;
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import java.math.RoundingMode;
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import java.net.URISyntaxException;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Map;
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import org.nevec.rjm.BigDecimalMath;
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import org.nevec.rjm.Rational;
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import it.cavallium.warppi.WarpPI;
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import it.cavallium.warppi.StaticVars;
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import it.cavallium.warppi.gui.graphicengine.BinaryFont;
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import it.cavallium.warppi.math.Function;
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import it.cavallium.warppi.math.FunctionOperator;
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import it.cavallium.warppi.math.FunctionSingle;
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import it.cavallium.warppi.math.functions.Division;
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import it.cavallium.warppi.math.functions.Expression;
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import it.cavallium.warppi.math.functions.Multiplication;
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import it.cavallium.warppi.math.functions.Negative;
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import it.cavallium.warppi.math.functions.Number;
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import it.cavallium.warppi.math.functions.Subtraction;
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import it.cavallium.warppi.math.functions.Sum;
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import it.cavallium.warppi.math.functions.SumSubtraction;
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import it.cavallium.warppi.math.functions.Variable;
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import it.cavallium.warppi.math.functions.equations.Equation;
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import it.cavallium.warppi.math.functions.equations.EquationsSystemPart;
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import it.unimi.dsi.fastutil.objects.ObjectArrayList;
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public class Utils {
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public static final int scale = 24;
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public static final int displayScale = 8;
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public static final BigInteger maxFactor = BigInteger.valueOf(1000000L);
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public static final int scaleMode = BigDecimal.ROUND_HALF_UP;
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public static final RoundingMode scaleMode2 = RoundingMode.HALF_UP;
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public static final int maxAutoFractionDigits = 5;
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public static boolean newtMode = true;
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public static <T> boolean isInArray(final T ch, final T[] a) {
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return Arrays.stream(a).anyMatch(item -> ch.equals(item));
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}
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public static boolean isInArray(final char ch, final char[] a) {
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for (final char c : a) {
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if (c == ch) {
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return true;
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}
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}
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return false;
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}
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private static final String[] regexNormalSymbols = new String[] { "\\", ".", "[", "]", "{", "}", "(", ")", "*", "+", "-", "?", "^", "$", "|" };
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public static String ArrayToRegex(final String[] array) {
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String regex = null;
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for (final String symbol : array) {
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boolean contained = false;
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for (final String smb : Utils.regexNormalSymbols) {
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if (smb.equals(symbol)) {
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contained = true;
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break;
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}
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}
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if (contained) {
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if (regex != null) {
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regex += "|\\" + symbol;
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} else {
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regex = "\\" + symbol;
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}
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} else if (regex != null) {
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regex += "|" + symbol;
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} else {
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regex = symbol;
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}
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}
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return regex;
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}
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public static String ArrayToRegex(final char[] array) {
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String regex = null;
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for (final char symbol : array) {
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boolean contained = false;
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for (final String smb : Utils.regexNormalSymbols) {
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if (smb.equals(symbol + "")) {
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contained = true;
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break;
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}
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}
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if (contained) {
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if (regex != null) {
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regex += "|\\" + symbol;
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} else {
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regex = "\\" + symbol;
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}
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} else if (regex != null) {
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regex += "|" + symbol;
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} else {
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regex = symbol + "";
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}
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}
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return regex;
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}
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public static String[] concat(final String[] a, final String[] b) {
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final int aLen = a.length;
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final int bLen = b.length;
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final String[] c = new String[aLen + bLen];
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System.arraycopy(a, 0, c, 0, aLen);
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System.arraycopy(b, 0, c, aLen, bLen);
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return c;
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}
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public static char[] concat(final char[] a, final char[] b) {
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final int aLen = a.length;
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final int bLen = b.length;
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final char[] c = new char[aLen + bLen];
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System.arraycopy(a, 0, c, 0, aLen);
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System.arraycopy(b, 0, c, aLen, bLen);
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return c;
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}
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public static String[] add(final String[] a, final String b) {
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final int aLen = a.length;
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final String[] c = new String[aLen + 1];
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System.arraycopy(a, 0, c, 0, aLen);
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c[aLen] = b;
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return c;
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}
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public static char[] add(final char[] a, final char b) {
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final int aLen = a.length;
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final char[] c = new char[aLen + 1];
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System.arraycopy(a, 0, c, 0, aLen);
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c[aLen] = b;
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return c;
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}
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public static boolean areThereOnlySettedUpFunctionsSumsEquationsAndSystems(final List<Function> fl) {
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for (int i = 0; i < fl.size(); i++) {
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if (!(fl.get(i) instanceof Number || fl.get(i) instanceof Variable || fl.get(i) instanceof Sum || fl.get(i) instanceof SumSubtraction || fl.get(i) instanceof Subtraction || fl.get(i) instanceof Equation || fl.get(i) instanceof EquationsSystemPart || fl.get(i) instanceof Expression)) {
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if (fl.get(i) instanceof FunctionSingle) {
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if (((FunctionSingle) fl.get(i)).getParameter() == null) {
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return false;
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}
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} else if (fl.get(i) instanceof FunctionOperator) {
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if (((FunctionOperator) fl.get(i)).getParameter1() == null || ((FunctionOperator) fl.get(i)).getParameter2() == null) {
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return false;
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}
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} else {
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return false;
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}
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}
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}
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return true;
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}
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public static boolean areThereOnlySettedUpFunctionsSumsMultiplicationsEquationsAndSystems(final List<Function> fl) {
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for (int i = 0; i < fl.size(); i++) {
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if (!(fl.get(i) instanceof Number || fl.get(i) instanceof Variable || fl.get(i) instanceof Multiplication || fl.get(i) instanceof Sum || fl.get(i) instanceof SumSubtraction || fl.get(i) instanceof Subtraction || fl.get(i) instanceof Equation || fl.get(i) instanceof EquationsSystemPart || fl.get(i) instanceof Expression)) {
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if (fl.get(i) instanceof FunctionSingle) {
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if (((FunctionSingle) fl.get(i)).getParameter() == null) {
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return false;
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}
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} else if (fl.get(i) instanceof FunctionOperator) {
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if (((FunctionOperator) fl.get(i)).getParameter1() == null || ((FunctionOperator) fl.get(i)).getParameter2() == null) {
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return false;
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}
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} else {
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return false;
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}
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}
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}
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return true;
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}
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public static boolean areThereOnlySettedUpFunctionsEquationsAndSystems(final List<Function> fl) {
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for (int i = 0; i < fl.size(); i++) {
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if (!(fl.get(i) instanceof Number || fl.get(i) instanceof Variable || fl.get(i) instanceof Equation || fl.get(i) instanceof EquationsSystemPart || fl.get(i) instanceof Expression)) {
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if (fl.get(i) instanceof FunctionSingle) {
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if (((FunctionSingle) fl.get(i)).getParameter() == null) {
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return false;
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}
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} else if (fl.get(i) instanceof FunctionOperator) {
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if (((FunctionOperator) fl.get(i)).getParameter1() == null || ((FunctionOperator) fl.get(i)).getParameter2() == null) {
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return false;
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}
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} else {
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return false;
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}
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}
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}
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return true;
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}
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public static boolean areThereOnlySettedUpFunctionsAndSystems(final List<Function> fl) {
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for (int i = 0; i < fl.size(); i++) {
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if (!(fl.get(i) instanceof Number || fl.get(i) instanceof Variable || fl.get(i) instanceof Equation || fl.get(i) instanceof EquationsSystemPart || fl.get(i) instanceof Expression)) {
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if (fl.get(i) instanceof FunctionSingle) {
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if (((FunctionSingle) fl.get(i)).getParameter() == null) {
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return false;
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}
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} else if (fl.get(i) instanceof FunctionOperator) {
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if (((FunctionOperator) fl.get(i)).getParameter1() == null || ((FunctionOperator) fl.get(i)).getParameter2() == null) {
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return false;
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}
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} else {
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return false;
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}
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}
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}
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return true;
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}
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public static boolean areThereOnlyEmptySNFunctions(final List<Function> fl) {
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for (int i = 0; i < fl.size(); i++) {
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if (fl.get(i) instanceof FunctionSingle) {
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if (((FunctionSingle) fl.get(i)).getParameter() == null) {
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return true;
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}
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}
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}
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return false;
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}
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public static boolean areThereOnlyEmptyNSNFunctions(final List<Function> fl) {
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for (int i = 0; i < fl.size(); i++) {
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if (fl.get(i) instanceof FunctionOperator && !(fl.get(i) instanceof Sum) && !(fl.get(i) instanceof SumSubtraction) && !(fl.get(i) instanceof Subtraction) && !(fl.get(i) instanceof Multiplication) && !(fl.get(i) instanceof Division)) {
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if (((FunctionOperator) fl.get(i)).getParameter1() == null && ((FunctionOperator) fl.get(i)).getParameter2() == null) {
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return true;
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}
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}
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}
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return false;
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}
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public static boolean areThereEmptyMultiplications(final List<Function> fl) {
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for (int i = 0; i < fl.size(); i++) {
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if (fl.get(i) instanceof Multiplication || fl.get(i) instanceof Division) {
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if (((FunctionOperator) fl.get(i)).getParameter1() == null && ((FunctionOperator) fl.get(i)).getParameter2() == null) {
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return true;
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}
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}
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}
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return false;
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}
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public static boolean areThereEmptySums(final List<Function> fl) {
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for (int i = 0; i < fl.size(); i++) {
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if (fl.get(i) instanceof Sum || fl.get(i) instanceof SumSubtraction || fl.get(i) instanceof Subtraction) {
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if (((FunctionOperator) fl.get(i)).getParameter1() == null && ((FunctionOperator) fl.get(i)).getParameter2() == null) {
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return true;
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}
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}
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}
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return false;
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}
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public static boolean areThereEmptySystems(final List<Function> fl) {
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for (int i = 0; i < fl.size(); i++) {
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if (fl.get(i) instanceof EquationsSystemPart) {
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if (((EquationsSystemPart) fl.get(i)).getParameter() == null) {
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return true;
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}
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}
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}
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return false;
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}
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public static boolean areThereOtherSettedUpFunctions(final List<Function> fl) {
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for (int i = 0; i < fl.size(); i++) {
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if (!(fl.get(i) instanceof Number || fl.get(i) instanceof Variable || fl.get(i) instanceof Sum || fl.get(i) instanceof SumSubtraction || fl.get(i) instanceof Expression || fl.get(i) instanceof FunctionSingle || fl.get(i) instanceof Multiplication || fl.get(i) instanceof Division)) {
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if (fl.get(i) instanceof FunctionSingle) {
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if (((FunctionSingle) fl.get(i)).getParameter() == null) {
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return true;
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}
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} else if (fl.get(i) instanceof FunctionOperator) {
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if (((FunctionOperator) fl.get(i)).getParameter1() == null || ((FunctionOperator) fl.get(i)).getParameter2() == null) {
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return true;
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}
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} else {
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return true;
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}
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}
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}
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return false;
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}
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public static Rational getRational(final BigDecimal str) {
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try {
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return Utils.getRational(str.toString());
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} catch (final Error e) {
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//E' IMPOSSIBILE CHE VENGA THROWATO UN ERRORE
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return new Rational("0");
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}
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}
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public static Rational getRational(String str) throws Error {
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try {
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return new Rational(str);
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} catch (final NumberFormatException ex) {
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if (new BigDecimal(str).compareTo(new BigDecimal(8000.0)) < 0 && new BigDecimal(str).compareTo(new BigDecimal(-8000.0)) > 0) {
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if (str.equals("-")) {
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str = "-1";
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}
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final long bits = Double.doubleToLongBits(Double.parseDouble(str));
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final long sign = bits >>> 63;
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final long exponent = (bits >>> 52 ^ sign << 11) - 1023;
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final long fraction = bits << 12; // bits are "reversed" but that's
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// not a problem
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long a = 1L;
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long b = 1L;
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for (int i = 63; i >= 12; i--) {
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a = a * 2 + (fraction >>> i & 1);
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b *= 2;
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}
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if (exponent > 0) {
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a *= 1 << exponent;
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} else {
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b *= 1 << -exponent;
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}
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if (sign == 1) {
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a *= -1;
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}
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if (b == 0) {
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a = 0;
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b = 1;
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}
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return new Rational(new BigInteger(a + ""), new BigInteger(b + ""));
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} else {
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final BigDecimal original = new BigDecimal(str);
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final BigInteger numerator = original.unscaledValue();
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final BigInteger denominator = BigDecimalMath.pow(BigDecimal.TEN, new BigDecimal(original.scale())).toBigIntegerExact();
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return new Rational(numerator, denominator);
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}
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}
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}
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public static BigDecimal rationalToIrrationalString(final Rational r) {
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return BigDecimalMath.divideRound(new BigDecimal(r.numer()).setScale(Utils.scale, Utils.scaleMode), new BigDecimal(r.denom()).setScale(Utils.scale, Utils.scaleMode));
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}
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public static boolean equalsVariables(final List<Variable> variables, final List<Variable> variables2) {
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if (variables.size() != variables2.size()) {
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return false;
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} else {
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for (final Variable v : variables) {
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if (!variables2.contains(v)) {
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return false;
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}
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}
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return true;
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}
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}
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@Deprecated
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public static void writeSquareRoot(final Function var, final int x, final int y, final boolean small) {
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// var.setSmall(small);
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// final int w1 = var.getWidth();
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// final int h1 = var.getHeight();
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// final int wsegno = 5;
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// final int hsegno = h1 + 2;
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//
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// var.draw(x + wsegno, y + (hsegno - h1), null, null);
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//
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// Engine.INSTANCE.getHardwareDevice().getDisplayManager().renderer.glDrawLine(x + 1, y + hsegno - 3, x + 1, y + hsegno - 3);
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// Engine.INSTANCE.getHardwareDevice().getDisplayManager().renderer.glDrawLine(x + 2, y + hsegno - 2, x + 2, y + hsegno - 2);
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// Engine.INSTANCE.getHardwareDevice().getDisplayManager().renderer.glDrawLine(x + 3, y + hsegno - 1, x + 3, y + hsegno - 1);
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// Engine.INSTANCE.getHardwareDevice().getDisplayManager().renderer.glDrawLine(x + 3, y + (hsegno - 1) / 2 + 1, x + 3, y + hsegno - 1);
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// Engine.INSTANCE.getHardwareDevice().getDisplayManager().renderer.glDrawLine(x + 4, y, x + 4, y + (hsegno - 1) / 2);
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// Engine.INSTANCE.getHardwareDevice().getDisplayManager().renderer.glDrawLine(x + 4, y, x + 4 + 1 + w1 + 1, y);
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}
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public static final int getFontHeight() {
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return Utils.getFontHeight(false);
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}
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public static final BinaryFont getFont(final boolean small) {
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return Utils.getFont(small, StaticVars.zoomed);
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}
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public static final BinaryFont getFont(final boolean small, final boolean zoomed) {
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return WarpPI.INSTANCE.getHardwareDevice().getDisplayManager().fonts[Utils.getFontIndex(small, zoomed)];
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}
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public static final int getFontIndex(final boolean small, final boolean zoomed) {
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if (small) {
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if (zoomed) {
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return 3;
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} else {
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return 1;
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}
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} else if (zoomed) {
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return 2;
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} else {
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return 0;
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}
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}
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public static final int getFontHeight(final boolean small) {
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return Utils.getFontHeight(small, StaticVars.zoomed);
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}
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public static final int getFontHeight(final boolean small, final boolean zoomed) {
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if (small) {
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if (zoomed) {
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return WarpPI.INSTANCE.getHardwareDevice().getDisplayManager().glyphsHeight[3];
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} else {
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return WarpPI.INSTANCE.getHardwareDevice().getDisplayManager().glyphsHeight[1];
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}
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} else if (zoomed) {
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return WarpPI.INSTANCE.getHardwareDevice().getDisplayManager().glyphsHeight[2];
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} else {
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return WarpPI.INSTANCE.getHardwareDevice().getDisplayManager().glyphsHeight[0];
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}
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}
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public static byte[] convertStreamToByteArray(final InputStream stream, final long size) throws IOException {
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// check to ensure that file size is not larger than Integer.MAX_VALUE.
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if (size > Integer.MAX_VALUE) {
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return new byte[0];
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}
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final byte[] buffer = new byte[(int) size];
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final ByteArrayOutputStream os = new ByteArrayOutputStream();
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int line = 0;
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// read bytes from stream, and store them in buffer
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while ((line = stream.read(buffer)) != -1) {
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// Writes bytes from byte array (buffer) into output stream.
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os.write(buffer, 0, line);
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}
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stream.close();
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os.flush();
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os.close();
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return os.toByteArray();
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}
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public static int[] realBytes(final byte[] bytes) {
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final int len = bytes.length;
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final int[] realbytes = new int[len];
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for (int i = 0; i < len; i++) {
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realbytes[i] = bytes[i] & 0xFF;
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}
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return realbytes;
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}
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public static Function[][] joinFunctionsResults(final List<Function> l1, final List<Function> l2) {
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final int size1 = l1.size();
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final int size2 = l2.size();
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int cur1 = 0;
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int cur2 = 0;
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final int total = size1 * size2;
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final Function[][] results = new Function[total][2];
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for (int i = 0; i < total; i++) {
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results[i] = new Function[] { l1.get(cur1), l2.get(cur2) };
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if (i % size2 == 0) {
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cur1 += 1;
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}
|
|
if (i % size1 == 0) {
|
|
cur2 += 1;
|
|
}
|
|
if (cur1 >= size1) {
|
|
cur1 = 0;
|
|
}
|
|
if (cur2 >= size2) {
|
|
cur2 = 0;
|
|
}
|
|
}
|
|
return results;
|
|
}
|
|
|
|
public static Function[][] joinFunctionsResults(final ObjectArrayList<ObjectArrayList<Function>> ln) {
|
|
final int[] sizes = new int[ln.size()];
|
|
for (int i = 0; i < ln.size(); i++) {
|
|
sizes[i] = ln.get(i).size();
|
|
}
|
|
final int[] curs = new int[sizes.length];
|
|
int total = 0;
|
|
for (int i = 0; i < ln.size(); i++) {
|
|
if (i == 0) {
|
|
total = sizes[i];
|
|
} else {
|
|
total *= sizes[i];
|
|
}
|
|
}
|
|
final Function[][] results = new Function[total][sizes.length];
|
|
for (int i = 0; i < total; i++) {
|
|
results[i] = new Function[sizes.length];
|
|
for (int j = 0; j < sizes.length; j++) {
|
|
results[i][j] = ln.get(j).get(curs[j]);
|
|
}
|
|
for (int k = 0; k < sizes.length; k++) {
|
|
if (i % sizes[k] == 0) {
|
|
for (int l = 0; l < sizes.length; l++) {
|
|
if (l != k) {
|
|
curs[l] += 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for (int k = 0; k < sizes.length; k++) {
|
|
if (curs[k] >= sizes[k]) {
|
|
curs[k] = 0;
|
|
}
|
|
}
|
|
}
|
|
return results;
|
|
}
|
|
|
|
public static boolean isNegative(final Function b) {
|
|
if (b instanceof Negative) {
|
|
return true;
|
|
} else if (b instanceof Number && ((Number) b).getTerm().compareTo(BigDecimal.ZERO) < 0) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public static CharSequence multipleChars(final String string, final int i) {
|
|
String result = "";
|
|
for (int j = 0; j < i; j++) {
|
|
result += string;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
public static boolean isIntegerValue(final BigDecimal bd) {
|
|
return bd.signum() == 0 || bd.scale() <= 0 || bd.stripTrailingZeros().scale() <= 0;
|
|
}
|
|
|
|
@SafeVarargs
|
|
public static <T> String arrayToString(final T... data) {
|
|
String sdata = "";
|
|
for (final T o : data) {
|
|
sdata += "," + o;
|
|
}
|
|
return sdata.substring(1);
|
|
}
|
|
|
|
public static String arrayToString(final boolean... data) {
|
|
String sdata = "";
|
|
for (final boolean o : data) {
|
|
sdata += o ? 1 : 0;
|
|
}
|
|
return sdata;
|
|
}
|
|
|
|
public static boolean isWindows() {
|
|
return WarpPI.getPlatform().getOsName().indexOf("win") >= 0;
|
|
}
|
|
|
|
public static <T> ObjectArrayList<T> newArrayList(final T o) {
|
|
final ObjectArrayList<T> t = new ObjectArrayList<>();
|
|
t.add(o);
|
|
return t;
|
|
}
|
|
|
|
public static InputStream getResourceStreamSafe(final String string) throws IOException, URISyntaxException {
|
|
try {
|
|
return WarpPI.getPlatform().getPlatformStorage().getResourceStream(string);
|
|
} catch (final Exception ex) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public static File getJarDirectory() {
|
|
return new File("").getAbsoluteFile();
|
|
}
|
|
|
|
public static <T, U> U getOrDefault(final Map<T, U> enginesList, final T key, final U object) {
|
|
if (enginesList.containsKey(key)) {
|
|
return enginesList.get(key);
|
|
} else {
|
|
return object;
|
|
}
|
|
}
|
|
}
|