130 lines
4.0 KiB
Java
130 lines
4.0 KiB
Java
package org.warp.picalculator.math;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.LinkedHashSet;
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import java.util.List;
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import java.util.Set;
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import org.nevec.rjm.NumeroAvanzato;
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import org.warp.picalculator.Error;
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import org.warp.picalculator.Errors;
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import org.warp.picalculator.Utils;
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import org.warp.picalculator.device.PIDisplay;
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import org.warp.picalculator.device.graphicengine.Display;
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import org.warp.picalculator.device.graphicengine.Screen;
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import org.warp.picalculator.math.functions.Expression;
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import org.warp.picalculator.math.functions.Function;
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import org.warp.picalculator.math.functions.Number;
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import org.warp.picalculator.math.functions.equations.Equation;
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import org.warp.picalculator.math.functions.equations.EquationsSystem;
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import org.warp.picalculator.screens.EquationScreen;
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import org.warp.picalculator.screens.SolveEquationScreen;
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public class Calculator {
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public static String angleMode = "deg";
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public static Screen[] sessions = new Screen[5];
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public static int currentSession = 0;
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public static boolean haxMode = true;
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public static Function parseString(String string) throws Error {
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if (string.contains("{")) {
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if (!string.startsWith("{")) {
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throw new Error(Errors.SYNTAX_ERROR);
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}
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String[] parts = string.substring(1).split("\\{");
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EquationsSystem s = new EquationsSystem(null);
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for (String part : parts) {
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s.addVariableToEnd(parseEquationString(part));
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}
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return s;
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} else if (string.contains("=")) {
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return parseEquationString(string);
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} else {
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return new Expression(null, string);
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}
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}
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public static Function parseEquationString(String string) throws Error {
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String[] parts = string.split("=");
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if (parts.length == 1) {
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Equation e = new Equation(null, null, null);
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e.setVariable1(new Expression(e, parts[0]));
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e.setVariable2(new Number(e, NumeroAvanzato.ZERO));
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return e;
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} else if (parts.length == 2) {
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Equation e = new Equation(null, null, null);
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e.setVariable1(new Expression(e, parts[0]));
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e.setVariable2(new Expression(e, parts[1]));
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return e;
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} else {
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throw new Error(Errors.SYNTAX_ERROR);
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}
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}
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public static void solve(EquationScreen es) throws Error {
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List<Function> results = new ArrayList<>();
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List<Function> partialResults = new ArrayList<>();
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for (Function f : es.f) {
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if (f instanceof Equation) {
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PIDisplay.INSTANCE.setScreen(new SolveEquationScreen(es));
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} else {
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results.add(f);
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while (Utils.allSolved(results) == false) {
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for (Function itm : results) {
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if (itm.isSolved() == false) {
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List<Function> dt = itm.solveOneStep();
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partialResults.addAll(dt);
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} else {
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partialResults.add(itm);
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}
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}
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results = new ArrayList<Function>(partialResults);
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partialResults.clear();
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}
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}
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}
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if (results.size() == 0) {
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es.resultsCount = 0;
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} else {
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es.resultsCount = results.size();
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Collections.reverse(results);
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// add elements to al, including duplicates
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Set<Function> hs = new LinkedHashSet<>();
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hs.addAll(results);
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results.clear();
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results.addAll(hs);
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es.f2 = results;
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for (Function rf : es.f2) {
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rf.generateGraphics();
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}
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}
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}
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public static void solve(EquationScreen equationScreen, char letter) throws Error {
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if (Calculator.currentSession == 0 && Calculator.sessions[0] instanceof EquationScreen) {
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EquationScreen es = (EquationScreen) Calculator.sessions[0];
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List<Function> f = es.f;
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if (f instanceof Equation) {
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List<Function> results = ((Equation)f).solve(letter);
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Collections.reverse(results);
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// add elements to al, including duplicates
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Set<Function> hs = new LinkedHashSet<>();
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hs.addAll(results);
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results.clear();
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results.addAll(hs);
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es.f2 = results;
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for (Function rf : es.f2) {
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rf.generateGraphics();
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}
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}
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}
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}
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public static void simplify(EquationScreen equationScreen) {
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}
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}
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