197 lines
7.9 KiB
JavaScript
197 lines
7.9 KiB
JavaScript
class ScientificCalculator {
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constructor(containerId) {
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this.container = document.getElementById(containerId);
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if (!this.container) return;
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this.currentInput = "0";
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this.previousInput = "";
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this.operation = null;
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this.init();
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}
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init() {
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this.container.innerHTML = `
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<div class="w-80 bg-slate-800 p-4 rounded-2xl shadow-xl select-none text-slate-100">
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<!-- Écran -->
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<div id="calc-screen" class="bg-slate-900 text-right p-4 rounded-xl mb-4 text-2xl font-mono tracking-wider overflow-hidden min-h-[4rem] flex flex-col justify-center">
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<div id="calc-prev" class="text-xs text-slate-400 h-4"></div>
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<div id="calc-current" class="truncate">0</div>
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</div>
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<!-- Clavier scientifique -->
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<div class="grid grid-cols-4 gap-2 text-sm">
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<!-- Ligne 0 : Fonctions avancées -->
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<button data-action="scientific" data-value="sqrt" class="bg-indigo-700 hover:bg-indigo-600 p-2.5 rounded-xl font-bold transition">√</button>
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<button data-action="scientific" data-value="sqr" class="bg-indigo-700 hover:bg-indigo-600 p-2.5 rounded-xl font-bold transition">x²</button>
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<button data-action="scientific" data-value="inv" class="bg-indigo-700 hover:bg-indigo-600 p-2.5 rounded-xl font-bold transition">1/x</button>
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<button data-action="clear" class="bg-red-600 hover:bg-red-500 p-2.5 rounded-xl font-bold transition">AC</button>
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<!-- Ligne 1 : Trigo & Suppression -->
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<button data-action="scientific" data-value="sin" class="bg-indigo-800 hover:bg-indigo-700 p-2.5 rounded-xl font-semibold transition">sin</button>
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<button data-action="scientific" data-value="cos" class="bg-indigo-800 hover:bg-indigo-700 p-2.5 rounded-xl font-semibold transition">cos</button>
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<button data-action="scientific" data-value="tan" class="bg-indigo-800 hover:bg-indigo-700 p-2.5 rounded-xl font-semibold transition">tan</button>
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<button data-action="delete" class="bg-slate-700 hover:bg-slate-600 p-2.5 rounded-xl font-bold transition">⌫</button>
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<!-- Ligne 2 -->
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<button data-action="number" data-value="7" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">7</button>
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<button data-action="number" data-value="8" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">8</button>
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<button data-action="number" data-value="9" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">9</button>
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<button data-action="operator" data-value="/" class="bg-amber-600 hover:bg-amber-500 p-3 rounded-xl font-bold transition">÷</button>
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<!-- Ligne 3 -->
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<button data-action="number" data-value="4" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">4</button>
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<button data-action="number" data-value="5" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">5</button>
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<button data-action="number" data-value="6" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">6</button>
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<button data-action="operator" data-value="*" class="bg-amber-600 hover:bg-amber-500 p-3 rounded-xl font-bold transition">×</button>
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<!-- Ligne 4 -->
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<button data-action="number" data-value="1" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">1</button>
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<button data-action="number" data-value="2" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">2</button>
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<button data-action="number" data-value="3" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">3</button>
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<button data-action="operator" data-value="-" class="bg-amber-600 hover:bg-amber-500 p-3 rounded-xl font-bold transition">-</button>
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<!-- Ligne 5 -->
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<button data-action="number" data-value="0" class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">0</button>
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<button data-action="number" data-value="." class="bg-slate-700 hover:bg-slate-600 p-3 rounded-xl font-bold transition">.</button>
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<button data-action="calculate" class="bg-emerald-600 hover:bg-emerald-500 p-3 rounded-xl font-bold transition">=</button>
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<button data-action="operator" data-value="+" class="bg-amber-600 hover:bg-amber-500 p-3 rounded-xl font-bold transition">+</button>
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</div>
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</div>
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`;
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this.prevScreen = this.container.querySelector("#calc-prev");
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this.currentScreen = this.container.querySelector("#calc-current");
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this.addListeners();
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}
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addListeners() {
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this.container.addEventListener("click", (e) => {
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const button = e.target.closest("button");
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if (!button) return;
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const action = button.getAttribute("data-action");
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const value = button.getAttribute("data-value");
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if (action === "number") {
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this.appendNumber(value);
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} else if (action === "operator") {
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this.chooseOperation(value);
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} else if (action === "scientific") {
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this.scientificOperation(value);
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} else if (action === "calculate") {
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this.compute();
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} else if (action === "clear") {
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this.clear();
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} else if (action === "delete") {
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this.deleteDigit();
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}
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this.updateScreen();
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});
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}
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appendNumber(number) {
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if (number === "." && this.currentInput.includes(".")) return;
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if (this.currentInput === "0" && number !== ".") {
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this.currentInput = number;
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} else {
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this.currentInput += number;
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}
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}
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chooseOperation(op) {
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if (this.currentInput === "") return;
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if (this.previousInput !== "") {
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this.compute();
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}
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this.operation = op;
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this.previousInput = this.currentInput;
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this.currentInput = "";
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}
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scientificOperation(func) {
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const current = parseFloat(this.currentInput);
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if (isNaN(current)) return;
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let result;
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switch (func) {
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case "sqrt":
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result = current < 0 ? "Erreur" : Math.sqrt(current);
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break;
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case "sqr":
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result = Math.pow(current, 2);
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break;
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case "inv":
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result = current === 0 ? "Erreur" : 1 / current;
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break;
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case "sin":
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// Conversion en radians pour le calcul trigonométrique standard
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result = Math.sin(current * (Math.PI / 180));
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break;
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case "cos":
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result = Math.cos(current * (Math.PI / 180));
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break;
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case "tan":
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result = Math.tan(current * (Math.PI / 180));
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break;
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default:
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return;
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}
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this.currentInput =
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typeof result === "number"
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? parseFloat(result.toFixed(8)).toString()
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: result;
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}
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compute() {
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let computation;
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const prev = parseFloat(this.previousInput);
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const current = parseFloat(this.currentInput);
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if (isNaN(prev) || isNaN(current)) return;
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switch (this.operation) {
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case "+":
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computation = prev + current;
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break;
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case "-":
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computation = prev - current;
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break;
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case "*":
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computation = prev * current;
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break;
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case "/":
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computation = current === 0 ? "Erreur" : prev / current;
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break;
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default:
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return;
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}
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this.currentInput = parseFloat(computation.toFixed(8)).toString();
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this.operation = null;
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this.previousInput = "";
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}
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clear() {
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this.currentInput = "0";
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this.previousInput = "";
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this.operation = null;
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}
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deleteDigit() {
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if (this.currentInput.length === 1 || this.currentInput === "Erreur") {
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this.currentInput = "0";
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} else {
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this.currentInput = this.currentInput.slice(0, -1);
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}
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}
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updateScreen() {
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this.currentScreen.innerText =
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this.currentInput === "" ? "0" : this.currentInput;
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if (this.operation != null) {
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this.prevScreen.innerText = `${this.previousInput} ${this.operation}`;
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} else {
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this.prevScreen.innerText = "";
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}
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}
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}
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