102 lines
3.6 KiB
Java
102 lines
3.6 KiB
Java
package it.cavallium.warppi.math.functions;
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import it.cavallium.warppi.gui.expression.blocks.Block;
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import it.cavallium.warppi.gui.expression.blocks.BlockChar;
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import it.cavallium.warppi.gui.expression.blocks.BlockParenthesis;
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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.MathContext;
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import it.cavallium.warppi.math.MathematicalSymbols;
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import it.cavallium.warppi.util.Error;
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import it.unimi.dsi.fastutil.objects.ObjectArrayList;
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public class Multiplication extends FunctionOperator {
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public Multiplication(final MathContext root, final Function value1, final Function value2) {
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super(root, value1, value2);
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/*if (value1 instanceof Variable && value2 instanceof Variable == false) {
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parameter1 = value2;
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parameter2 = value1;
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}*/
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}
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@Override
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public boolean equals(final Object o) {
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if (o instanceof Multiplication) {
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final FunctionOperator f = (FunctionOperator) o;
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if (parameter1.equals(f.getParameter1()) && parameter2.equals(f.getParameter2())) {
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return true;
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} else if (parameter1.equals(f.getParameter2()) && parameter2.equals(f.getParameter1())) {
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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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@Override
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public Multiplication clone() {
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return new Multiplication(mathContext, parameter1, parameter2);
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}
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@Override
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public ObjectArrayList<Block> toBlock(final MathContext context) throws Error {
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final ObjectArrayList<Block> result = new ObjectArrayList<>();
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final Function par1 = getParameter1();
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final Function par2 = getParameter2();
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final ObjectArrayList<Block> sub1 = par1.toBlock(context);
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final ObjectArrayList<Block> sub2 = par2.toBlock(context);
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final Block nearLeft = sub1.get(sub1.size() - 1);
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final Block nearRight = sub2.get(0);
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if (par1 instanceof Number && ((Number) par1).equals(new Number(context, -1))) {
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result.add(new BlockChar(MathematicalSymbols.MINUS));
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if (new Expression(context, par2).parenthesisNeeded()) {
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final ObjectArrayList<Block> parBlocks = par2.toBlock(context);
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final BlockParenthesis par = new BlockParenthesis(parBlocks);
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result.add(par);
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} else {
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result.addAll(sub2);
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}
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return result;
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} else {
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if (new Expression(context, par1).parenthesisNeeded()) {
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final ObjectArrayList<Block> parBlocks = par1.toBlock(context);
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final BlockParenthesis par = new BlockParenthesis(parBlocks);
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result.add(par);
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} else {
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result.addAll(sub1);
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}
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if (nearLeft instanceof BlockChar && nearRight instanceof BlockChar && !(par2 instanceof Negative) && !(par1 instanceof Number && par2 instanceof Number)) {
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} else {
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result.add(new BlockChar(MathematicalSymbols.MULTIPLICATION));
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}
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if (new Expression(context, par2).parenthesisNeeded()) {
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final ObjectArrayList<Block> parBlocks = par2.toBlock(context);
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final BlockParenthesis par = new BlockParenthesis(parBlocks);
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result.add(par);
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} else {
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result.addAll(sub2);
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}
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return result;
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}
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}
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public boolean isNegative() {
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return parameter1.equals(new Number(getMathContext(), -1)) || parameter2.equals(new Number(getMathContext(), -1));
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}
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public Function toPositive() {
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if (parameter1.equals(new Number(getMathContext(), -1))) {
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return parameter2;
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} else if (parameter2.equals(new Number(getMathContext(), -1))) {
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return parameter2;
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} else {
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return null;
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}
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}
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public static Multiplication newNegative(final MathContext context, final Function value2) {
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return new Multiplication(context, new Number(context, -1), value2);
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}
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} |