Initial MARD pixel bead pattern web
This commit is contained in:
wuyanwanwu
+487
@@ -0,0 +1,487 @@
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"use client";
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import { ChangeEvent, useEffect, useMemo, useRef, useState } from "react";
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import { MARD_221 } from "./mard-palette";
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type BeadColor = {
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code: string;
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name: string;
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hex: string;
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rgb: [number, number, number];
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};
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type Pixel = {
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color: BeadColor;
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};
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type HoveredPixel = {
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row: number;
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column: number;
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color: BeadColor;
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left: number;
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top: number;
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};
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type SavedPattern = {
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id: string;
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name: string;
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savedAt: string;
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width: number;
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height: number;
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colorLimit: number;
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codes: string[];
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};
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const MARD_SERIES_NAMES: Record<string, string> = {
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A: "黄橙系", B: "绿色系", C: "蓝青系", D: "紫蓝系", E: "粉红系",
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F: "红色系", G: "肤棕系", H: "黑白灰系", M: "莫兰迪系",
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};
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const PALETTE: BeadColor[] = MARD_221.map(([code, hex]) => ({
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code,
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name: `MARD ${MARD_SERIES_NAMES[code[0]]}`,
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hex,
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rgb: [parseInt(hex.slice(1, 3), 16), parseInt(hex.slice(3, 5), 16), parseInt(hex.slice(5, 7), 16)],
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}));
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const hexToRgb = (hex: string): [number, number, number] => [
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parseInt(hex.slice(1, 3), 16),
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parseInt(hex.slice(3, 5), 16),
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parseInt(hex.slice(5, 7), 16),
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];
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function colorDistance(a: [number, number, number], b: [number, number, number]) {
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const meanR = (a[0] + b[0]) / 2;
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const r = a[0] - b[0];
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const g = a[1] - b[1];
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const blue = a[2] - b[2];
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return (2 + meanR / 256) * r * r + 4 * g * g + (2 + (255 - meanR) / 256) * blue * blue;
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}
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function nearestColor(rgb: [number, number, number], palette: BeadColor[]) {
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let closest = palette[0];
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let smallest = Number.POSITIVE_INFINITY;
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for (const color of palette) {
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const distance = colorDistance(rgb, color.rgb);
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if (distance < smallest) {
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smallest = distance;
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closest = color;
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}
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}
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return closest;
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}
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function makeDemoImage() {
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const canvas = document.createElement("canvas");
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canvas.width = 640;
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canvas.height = 640;
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const ctx = canvas.getContext("2d")!;
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const sky = ctx.createLinearGradient(0, 0, 0, 640);
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sky.addColorStop(0, "#bfe8f1");
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sky.addColorStop(0.65, "#fff2ce");
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sky.addColorStop(1, "#f6c783");
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ctx.fillStyle = sky;
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ctx.fillRect(0, 0, 640, 640);
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ctx.fillStyle = "#f6c742";
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ctx.beginPath(); ctx.arc(488, 134, 70, 0, Math.PI * 2); ctx.fill();
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ctx.fillStyle = "#58a95b";
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ctx.beginPath(); ctx.moveTo(0, 455); ctx.quadraticCurveTo(135, 310, 300, 455); ctx.quadraticCurveTo(480, 285, 640, 435); ctx.lineTo(640, 640); ctx.lineTo(0, 640); ctx.fill();
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ctx.fillStyle = "#27865a";
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ctx.beginPath(); ctx.moveTo(0, 535); ctx.quadraticCurveTo(180, 390, 350, 520); ctx.quadraticCurveTo(505, 410, 640, 505); ctx.lineTo(640, 640); ctx.lineTo(0, 640); ctx.fill();
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ctx.fillStyle = "#f7f5ed";
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ctx.fillRect(245, 390, 152, 126);
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ctx.fillStyle = "#d9383a";
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ctx.beginPath(); ctx.moveTo(218, 405); ctx.lineTo(321, 323); ctx.lineTo(424, 405); ctx.closePath(); ctx.fill();
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ctx.fillStyle = "#754a32";
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ctx.fillRect(300, 447, 43, 69);
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ctx.fillStyle = "#79cbe1";
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ctx.fillRect(258, 415, 39, 37); ctx.fillRect(350, 415, 34, 37);
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return canvas.toDataURL("image/png");
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}
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export default function Home() {
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const [sourceUrl, setSourceUrl] = useState("");
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const [sourceName, setSourceName] = useState("示例：田野小屋");
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const [gridWidth, setGridWidth] = useState(32);
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const [gridHeight, setGridHeight] = useState(32);
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const [colorLimit, setColorLimit] = useState(18);
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const [fitMode, setFitMode] = useState<"cover" | "contain">("cover");
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const [pixels, setPixels] = useState<Pixel[]>([]);
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const [selectedCodes, setSelectedCodes] = useState<Set<string>>(new Set());
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const [onlySelected, setOnlySelected] = useState(false);
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const [zoom, setZoom] = useState(24);
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const [showGrid, setShowGrid] = useState(true);
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const [showCodes, setShowCodes] = useState(true);
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const [query, setQuery] = useState("");
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const [hoveredPixel, setHoveredPixel] = useState<HoveredPixel | null>(null);
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const [history, setHistory] = useState<SavedPattern[]>([]);
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const [historyQuery, setHistoryQuery] = useState("");
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const [status, setStatus] = useState("示例图已准备好，可以直接转换");
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const sourceImageRef = useRef<HTMLImageElement | null>(null);
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const canvasRef = useRef<HTMLCanvasElement | null>(null);
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useEffect(() => {
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const saved = localStorage.getItem("bead-pattern-history");
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if (!saved) return;
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queueMicrotask(() => {
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try { setHistory(JSON.parse(saved)); } catch { localStorage.removeItem("bead-pattern-history"); }
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});
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}, []);
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const convertImage = (image = sourceImageRef.current) => {
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if (!image) return;
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const width = Math.max(8, Math.min(128, gridWidth));
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const height = Math.max(8, Math.min(128, gridHeight));
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const sample = document.createElement("canvas");
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sample.width = width;
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sample.height = height;
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const ctx = sample.getContext("2d", { willReadFrequently: true })!;
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ctx.fillStyle = "#f7f5ed";
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ctx.fillRect(0, 0, width, height);
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const imageRatio = image.naturalWidth / image.naturalHeight;
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const boxRatio = width / height;
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let drawWidth = width;
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let drawHeight = height;
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if ((fitMode === "cover" && imageRatio > boxRatio) || (fitMode === "contain" && imageRatio < boxRatio)) {
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drawHeight = height;
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drawWidth = height * imageRatio;
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} else {
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drawWidth = width;
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drawHeight = width / imageRatio;
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}
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ctx.drawImage(image, (width - drawWidth) / 2, (height - drawHeight) / 2, drawWidth, drawHeight);
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const data = ctx.getImageData(0, 0, width, height).data;
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const initialMatches: BeadColor[] = [];
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const counts = new Map<string, number>();
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for (let i = 0; i < data.length; i += 4) {
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const match = nearestColor([data[i], data[i + 1], data[i + 2]], PALETTE);
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initialMatches.push(match);
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counts.set(match.code, (counts.get(match.code) ?? 0) + 1);
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}
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const limitedPalette = [...PALETTE]
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.sort((a, b) => (counts.get(b.code) ?? 0) - (counts.get(a.code) ?? 0))
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.slice(0, Math.max(2, Math.min(colorLimit, PALETTE.length)));
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const converted = initialMatches.map((match, index) => {
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const rgb: [number, number, number] = [data[index * 4], data[index * 4 + 1], data[index * 4 + 2]];
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return { color: limitedPalette.some((c) => c.code === match.code) ? match : nearestColor(rgb, limitedPalette) };
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});
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setGridWidth(width);
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setGridHeight(height);
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setPixels(converted);
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setSelectedCodes(new Set());
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setStatus(`已转换为 ${width} × ${height}，共 ${width * height} 颗拼豆`);
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};
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useEffect(() => {
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const demo = makeDemoImage();
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const image = new Image();
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image.onload = () => {
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sourceImageRef.current = image;
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setSourceUrl(demo);
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convertImage(image);
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};
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image.src = demo;
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// This intentionally runs once to create the initial example.
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// eslint-disable-next-line react-hooks/exhaustive-deps
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}, []);
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const usedColors = useMemo(() => {
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const counts = new Map<string, number>();
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pixels.forEach(({ color }) => counts.set(color.code, (counts.get(color.code) ?? 0) + 1));
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return PALETTE.filter((color) => counts.has(color.code))
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.map((color) => ({ ...color, count: counts.get(color.code)! }))
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.sort((a, b) => b.count - a.count);
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}, [pixels]);
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const filteredColors = useMemo(() => {
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const key = query.trim().toLowerCase();
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return usedColors.filter((color) => !key || color.code.toLowerCase().includes(key) || color.name.includes(key) || color.hex.toLowerCase().includes(key));
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}, [query, usedColors]);
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useEffect(() => {
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const canvas = canvasRef.current;
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if (!canvas || pixels.length === 0) return;
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const cell = zoom;
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const ruler = Math.max(22, cell);
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const ratio = Math.min(window.devicePixelRatio || 1, 2);
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canvas.width = (gridWidth * cell + ruler) * ratio;
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canvas.height = (gridHeight * cell + ruler) * ratio;
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canvas.style.width = `${gridWidth * cell + ruler}px`;
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canvas.style.height = `${gridHeight * cell + ruler}px`;
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const ctx = canvas.getContext("2d")!;
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ctx.scale(ratio, ratio);
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ctx.fillStyle = "#ffffff";
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ctx.fillRect(0, 0, gridWidth * cell + ruler, gridHeight * cell + ruler);
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ctx.fillStyle = "#f0eee7";
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ctx.fillRect(ruler, 0, gridWidth * cell, ruler);
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ctx.fillRect(0, ruler, ruler, gridHeight * cell);
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ctx.strokeStyle = "rgba(32,38,36,.25)";
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ctx.lineWidth = 0.6;
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ctx.font = `600 ${Math.max(7, Math.min(10, cell * 0.35))}px Arial`;
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ctx.fillStyle = "#56605b";
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ctx.textAlign = "center";
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ctx.textBaseline = "middle";
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for (let column = 0; column < gridWidth; column++) {
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const x = ruler + column * cell;
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ctx.strokeRect(x + 0.3, 0.3, cell - 0.6, ruler - 0.6);
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ctx.fillText(String(column + 1), x + cell / 2, ruler / 2);
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}
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for (let row = 0; row < gridHeight; row++) {
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const y = ruler + row * cell;
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ctx.strokeRect(0.3, y + 0.3, ruler - 0.6, cell - 0.6);
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ctx.fillText(String(row + 1), ruler / 2, y + cell / 2);
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}
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pixels.forEach(({ color }, index) => {
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const x = ruler + (index % gridWidth) * cell;
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const y = ruler + Math.floor(index / gridWidth) * cell;
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const hasSelection = selectedCodes.size > 0;
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const isSelected = selectedCodes.has(color.code);
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if (onlySelected && hasSelection && !isSelected) {
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ctx.fillStyle = "#ffffff";
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} else {
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ctx.fillStyle = color.hex;
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ctx.globalAlpha = hasSelection && !isSelected ? 0.12 : 1;
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ctx.fillRect(x, y, cell, cell);
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ctx.globalAlpha = 1;
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}
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if (showGrid) {
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ctx.strokeStyle = hasSelection && !isSelected ? "rgba(32,38,36,.07)" : "rgba(32,38,36,.22)";
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ctx.lineWidth = 0.6;
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ctx.strokeRect(x + 0.3, y + 0.3, cell - 0.6, cell - 0.6);
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}
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if (showCodes && cell >= 22 && (!hasSelection || isSelected)) {
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const [r, g, b] = hexToRgb(color.hex);
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ctx.fillStyle = r * 0.299 + g * 0.587 + b * 0.114 > 160 ? "#1f2925" : "#ffffff";
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ctx.font = `600 ${Math.max(7, cell * 0.28)}px Arial`;
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ctx.textAlign = "center";
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ctx.textBaseline = "middle";
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ctx.fillText(color.code, x + cell / 2, y + cell / 2);
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}
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});
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}, [pixels, gridWidth, gridHeight, zoom, selectedCodes, onlySelected, showGrid, showCodes]);
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const handleUpload = (event: ChangeEvent<HTMLInputElement>) => {
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const file = event.target.files?.[0];
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if (!file) return;
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if (!file.type.startsWith("image/")) {
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setStatus("请选择 JPG、PNG 或 WebP 图片");
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return;
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}
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const url = URL.createObjectURL(file);
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const image = new Image();
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image.onload = () => {
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if (sourceUrl.startsWith("blob:")) URL.revokeObjectURL(sourceUrl);
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sourceImageRef.current = image;
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setSourceUrl(url);
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setSourceName(file.name);
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setStatus("图片已载入，点击“重新转换”生成图纸");
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convertImage(image);
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};
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image.src = url;
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};
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const toggleColor = (code: string) => {
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setSelectedCodes((current) => {
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const next = new Set(current);
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if (next.has(code)) next.delete(code); else next.add(code);
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return next;
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});
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};
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const handleCanvasClick = (event: React.MouseEvent<HTMLCanvasElement>) => {
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const canvas = canvasRef.current;
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if (!canvas) return;
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const rect = canvas.getBoundingClientRect();
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const ruler = Math.max(22, zoom);
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const x = Math.floor((event.clientX - rect.left - ruler) / zoom);
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const y = Math.floor((event.clientY - rect.top - ruler) / zoom);
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const pixel = pixels[y * gridWidth + x];
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if (x >= 0 && y >= 0 && x < gridWidth && y < gridHeight && pixel) toggleColor(pixel.color.code);
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};
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const handleCanvasMove = (event: React.MouseEvent<HTMLCanvasElement>) => {
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const canvas = canvasRef.current;
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if (!canvas) return;
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const rect = canvas.getBoundingClientRect();
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const ruler = Math.max(22, zoom);
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const column = Math.floor((event.clientX - rect.left - ruler) / zoom);
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const row = Math.floor((event.clientY - rect.top - ruler) / zoom);
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const pixel = pixels[row * gridWidth + column];
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if (column < 0 || row < 0 || column >= gridWidth || row >= gridHeight || !pixel) {
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setHoveredPixel(null);
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return;
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}
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setHoveredPixel({ row: row + 1, column: column + 1, color: pixel.color, left: event.clientX - rect.left + 14, top: event.clientY - rect.top + 14 });
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};
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const persistHistory = (next: SavedPattern[]) => {
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setHistory(next);
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localStorage.setItem("bead-pattern-history", JSON.stringify(next));
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};
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const savePattern = () => {
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if (!pixels.length) return;
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const entry: SavedPattern = {
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id: crypto.randomUUID(),
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name: sourceName.replace(/\.[^.]+$/, "") || "未命名图纸",
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savedAt: new Date().toISOString(),
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width: gridWidth,
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height: gridHeight,
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colorLimit,
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codes: pixels.map((pixel) => pixel.color.code),
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};
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persistHistory([entry, ...history].slice(0, 30));
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setStatus("图纸已保存到本机历史记录");
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};
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const restorePattern = (entry: SavedPattern) => {
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const colorMap = new Map(PALETTE.map((color) => [color.code, color]));
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setPixels(entry.codes.map((code) => ({ color: colorMap.get(code) ?? PALETTE[0] })));
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setGridWidth(entry.width);
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setGridHeight(entry.height);
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setColorLimit(entry.colorLimit);
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setSourceName(entry.name);
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setSelectedCodes(new Set());
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setStatus(`已恢复历史图纸：${entry.name}`);
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document.getElementById("pattern-preview")?.scrollIntoView({ behavior: "smooth" });
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};
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const removePattern = (id: string) => persistHistory(history.filter((entry) => entry.id !== id));
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const filteredHistory = useMemo(() => {
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const key = historyQuery.trim().toLowerCase();
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return history.filter((entry) => !key || entry.name.toLowerCase().includes(key) || `${entry.width}x${entry.height}`.includes(key));
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}, [history, historyQuery]);
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const exportPng = () => {
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const canvas = canvasRef.current;
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if (!canvas) return;
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const link = document.createElement("a");
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link.download = `拼豆图纸-${gridWidth}x${gridHeight}.png`;
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link.href = canvas.toDataURL("image/png");
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link.click();
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};
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return (
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<main>
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<header className="topbar">
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<a className="brand" href="#top" aria-label="豆格工坊首页">
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<span className="brand-mark" aria-hidden="true"><i /><i /><i /><i /></span>
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<span>豆格工坊</span>
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</a>
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<span className="top-note">图片转拼豆图纸 · 本地处理</span>
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</header>
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<section className="hero" id="top">
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<div>
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<p className="eyebrow">PIXEL BEAD STUDIO</p>
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<h1>把喜欢的图片，<br /><em>变成一格一格的快乐。</em></h1>
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<p className="hero-copy">上传图片，选择图纸大小和颜色数量；点击任意像素格，就能单独查看该颜色需要摆放的区域。</p>
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</div>
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<div className="hero-badge"><strong>{gridWidth} × {gridHeight}</strong><span>当前图纸格数</span></div>
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</section>
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<section className="workspace" aria-label="拼豆图纸转换工具">
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<aside className="control-panel">
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<div className="panel-heading"><span>01</span><div><h2>图片与规格</h2><p>先决定图纸需要多少格</p></div></div>
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<label className="upload-card">
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{/* The source may be a local blob URL, so framework image optimization is not applicable. */}
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{/* eslint-disable-next-line @next/next/no-img-element */}
|
||||
{sourceUrl ? <img src={sourceUrl} alt="待转换的原图预览" /> : <span className="upload-placeholder">＋</span>}
|
||||
<span className="upload-overlay">更换图片</span>
|
||||
<input type="file" accept="image/png,image/jpeg,image/webp" onChange={handleUpload} />
|
||||
</label>
|
||||
<p className="file-name" title={sourceName}>{sourceName}</p>
|
||||
|
||||
<div className="field-row">
|
||||
<label><span>横向格数</span><input type="number" min="8" max="128" value={gridWidth} onChange={(e) => setGridWidth(Number(e.target.value))} /></label>
|
||||
<span className="times">×</span>
|
||||
<label><span>纵向格数</span><input type="number" min="8" max="128" value={gridHeight} onChange={(e) => setGridHeight(Number(e.target.value))} /></label>
|
||||
</div>
|
||||
|
||||
<label className="field"><span>最多使用颜色 <b>{colorLimit}</b></span><input type="range" min="2" max="64" value={colorLimit} onChange={(e) => setColorLimit(Number(e.target.value))} /></label>
|
||||
<label className="field"><span>图片适应方式</span><select value={fitMode} onChange={(e) => setFitMode(e.target.value as "cover" | "contain")}><option value="cover">裁剪铺满</option><option value="contain">完整显示</option></select></label>
|
||||
<button className="primary-button" onClick={() => convertImage()}>重新转换</button>
|
||||
<p className="privacy-note">图片只在当前浏览器中处理，不会上传到服务器。</p>
|
||||
</aside>
|
||||
|
||||
<section className="pattern-panel" id="pattern-preview">
|
||||
<div className="pattern-toolbar">
|
||||
<div><p className="section-kicker">02 / 图纸预览</p><h2>点击格子，筛选颜色</h2></div>
|
||||
<div className="zoom-control" aria-label="图纸缩放">
|
||||
<button onClick={() => setZoom((z) => Math.max(8, z - 2))} aria-label="缩小">−</button>
|
||||
<input aria-label="缩放比例" type="range" min="8" max="42" value={zoom} onChange={(e) => setZoom(Number(e.target.value))} />
|
||||
<button onClick={() => setZoom((z) => Math.min(42, z + 2))} aria-label="放大">＋</button>
|
||||
<output>{zoom}px</output>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div className="canvas-stage">
|
||||
<div className="canvas-wrap">
|
||||
<canvas ref={canvasRef} onClick={handleCanvasClick} onMouseMove={handleCanvasMove} onMouseLeave={() => setHoveredPixel(null)} aria-label="转换后的拼豆像素图，点击格子可选择颜色" />
|
||||
{hoveredPixel && <div className="pixel-tooltip" style={{ left: hoveredPixel.left, top: hoveredPixel.top }}>
|
||||
<span className="tooltip-swatch" style={{ backgroundColor: hoveredPixel.color.hex }} />
|
||||
<strong>第 {hoveredPixel.row} 行 · 第 {hoveredPixel.column} 列</strong>
|
||||
<small>{hoveredPixel.color.code} · {hoveredPixel.color.name} · {hoveredPixel.color.hex}</small>
|
||||
</div>}
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div className="pattern-footer">
|
||||
<span className="status-dot" /> <span>{status}</span>
|
||||
<div className="view-options">
|
||||
<label><input type="checkbox" checked={showGrid} onChange={(e) => setShowGrid(e.target.checked)} /> 网格</label>
|
||||
<label><input type="checkbox" checked={showCodes} onChange={(e) => setShowCodes(e.target.checked)} /> 格内编号</label>
|
||||
<button className="save-button" onClick={savePattern}>保存历史</button>
|
||||
<button onClick={exportPng}>下载 PNG</button>
|
||||
</div>
|
||||
</div>
|
||||
<div className="pattern-legend">
|
||||
<div className="legend-heading"><strong>本图所需颜色与用量</strong><span>按数量从多到少，共 {usedColors.length} 色</span></div>
|
||||
<div className="legend-list">
|
||||
{usedColors.map((color) => <button key={color.code} className={selectedCodes.has(color.code) ? "active" : ""} onClick={() => toggleColor(color.code)}>
|
||||
<i style={{ backgroundColor: color.hex }} /><strong>{color.code}</strong><span>{color.name}</span><b>{color.count} 颗</b>
|
||||
</button>)}
|
||||
</div>
|
||||
</div>
|
||||
</section>
|
||||
|
||||
<aside className="color-panel">
|
||||
<div className="panel-heading"><span>03</span><div><h2>分色查看</h2><p>{usedColors.length} 种颜色 · {pixels.length} 颗</p></div></div>
|
||||
<div className="search-box"><span>⌕</span><input value={query} onChange={(e) => setQuery(e.target.value)} placeholder="输入 A6、MARD A 或 #FEAC4C" /></div>
|
||||
<div className="selection-tools">
|
||||
<label className="switch-row"><input type="checkbox" checked={onlySelected} onChange={(e) => setOnlySelected(e.target.checked)} /><span className="switch" /><span>只显示选中颜色</span></label>
|
||||
{selectedCodes.size > 0 && <button onClick={() => setSelectedCodes(new Set())}>清除 {selectedCodes.size} 项</button>}
|
||||
</div>
|
||||
<div className="color-list">
|
||||
{filteredColors.map((color) => {
|
||||
const active = selectedCodes.has(color.code);
|
||||
return <button key={color.code} className={`color-item ${active ? "active" : ""}`} onClick={() => toggleColor(color.code)} aria-pressed={active}>
|
||||
<span className="swatch" style={{ backgroundColor: color.hex }} />
|
||||
<span className="color-meta"><strong>{color.code} · {color.name}</strong><small>{color.hex}</small></span>
|
||||
<b>{color.count}<small>颗</small></b>
|
||||
</button>;
|
||||
})}
|
||||
</div>
|
||||
<p className="palette-note"><strong>MARD 221 基础色卡</strong>：默认使用 A/B/C/D/E/F/G/H/M 九个系列。屏幕色值仅用于近似匹配，实体豆颜色会受批次、光线和屏幕影响。</p>
|
||||
</aside>
|
||||
</section>
|
||||
|
||||
<section className="history-section" aria-labelledby="history-title">
|
||||
<div className="history-heading"><div><p className="section-kicker">LOCAL PATTERN ARCHIVE</p><h2 id="history-title">历史图纸</h2><p>历史保存在当前浏览器，最多保留 30 份。</p></div>
|
||||
<div className="search-box"><span>⌕</span><input value={historyQuery} onChange={(e) => setHistoryQuery(e.target.value)} placeholder="按名称或 32x32 查询" /></div>
|
||||
</div>
|
||||
{filteredHistory.length ? <div className="history-grid">{filteredHistory.map((entry) => {
|
||||
const colorCounts = new Map<string, number>();
|
||||
entry.codes.forEach((code) => colorCounts.set(code, (colorCounts.get(code) ?? 0) + 1));
|
||||
const topCodes = [...colorCounts.entries()].sort((a, b) => b[1] - a[1]).slice(0, 6);
|
||||
return <article className="history-card" key={entry.id}>
|
||||
<div className="history-swatches">{topCodes.map(([code, count]) => <i key={code} style={{ backgroundColor: PALETTE.find((color) => color.code === code)?.hex, flexGrow: count }} />)}</div>
|
||||
<div><h3>{entry.name}</h3><p>{entry.width} × {entry.height} · {new Date(entry.savedAt).toLocaleString("zh-CN", { hour12: false })}</p></div>
|
||||
<div className="history-actions"><button onClick={() => restorePattern(entry)}>打开</button><button onClick={() => removePattern(entry.id)}>删除</button></div>
|
||||
</article>;
|
||||
})}</div> : <div className="history-empty">还没有符合条件的历史图纸。转换完成后点击“保存历史”即可在这里查询。</div>}
|
||||
</section>
|
||||
</main>
|
||||
);
|
||||
}
|
||||
Reference in New Issue
Block a user