chore: add jimp dependency, icon padding script, and update configuration
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import Path from "path";
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import bMFont from "load-bmfont";
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import { isNodePattern, throwError } from "@jimp/utils";
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import { measureText, measureTextHeight, splitLines } from "./measure-text";
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function xOffsetBasedOnAlignment(constants, font, line, maxWidth, alignment) {
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if (alignment === constants.HORIZONTAL_ALIGN_LEFT) {
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return 0;
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}
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if (alignment === constants.HORIZONTAL_ALIGN_CENTER) {
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return (maxWidth - measureText(font, line)) / 2;
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}
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return maxWidth - measureText(font, line);
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}
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function drawCharacter(image, font, x, y, char) {
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if (char.width > 0 && char.height > 0) {
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const characterPage = font.pages[char.page];
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image.blit(characterPage, x + char.xoffset, y + char.yoffset, char.x, char.y, char.width, char.height);
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}
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return image;
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}
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function printText(font, x, y, text, defaultCharWidth) {
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for (let i = 0; i < text.length; i++) {
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let char;
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if (font.chars[text[i]]) {
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char = text[i];
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} else if (/\s/.test(text[i])) {
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char = "";
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} else {
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char = "?";
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}
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const fontChar = font.chars[char] || {};
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const fontKerning = font.kernings[char];
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drawCharacter(this, font, x, y, fontChar || {});
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const kerning = fontKerning && fontKerning[text[i + 1]] ? fontKerning[text[i + 1]] : 0;
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x += kerning + (fontChar.xadvance || defaultCharWidth);
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}
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}
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function loadPages(Jimp, dir, pages) {
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const newPages = pages.map(page => {
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return Jimp.read(dir + "/" + page);
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});
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return Promise.all(newPages);
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}
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const dir = process.env.DIRNAME || `${__dirname}/../`;
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export default (() => ({
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constants: {
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measureText,
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measureTextHeight,
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FONT_SANS_8_BLACK: Path.join(dir, "fonts/open-sans/open-sans-8-black/open-sans-8-black.fnt"),
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FONT_SANS_10_BLACK: Path.join(dir, "fonts/open-sans/open-sans-10-black/open-sans-10-black.fnt"),
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FONT_SANS_12_BLACK: Path.join(dir, "fonts/open-sans/open-sans-12-black/open-sans-12-black.fnt"),
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FONT_SANS_14_BLACK: Path.join(dir, "fonts/open-sans/open-sans-14-black/open-sans-14-black.fnt"),
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FONT_SANS_16_BLACK: Path.join(dir, "fonts/open-sans/open-sans-16-black/open-sans-16-black.fnt"),
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FONT_SANS_32_BLACK: Path.join(dir, "fonts/open-sans/open-sans-32-black/open-sans-32-black.fnt"),
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FONT_SANS_64_BLACK: Path.join(dir, "fonts/open-sans/open-sans-64-black/open-sans-64-black.fnt"),
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FONT_SANS_128_BLACK: Path.join(dir, "fonts/open-sans/open-sans-128-black/open-sans-128-black.fnt"),
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FONT_SANS_8_WHITE: Path.join(dir, "fonts/open-sans/open-sans-8-white/open-sans-8-white.fnt"),
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FONT_SANS_16_WHITE: Path.join(dir, "fonts/open-sans/open-sans-16-white/open-sans-16-white.fnt"),
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FONT_SANS_32_WHITE: Path.join(dir, "fonts/open-sans/open-sans-32-white/open-sans-32-white.fnt"),
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FONT_SANS_64_WHITE: Path.join(dir, "fonts/open-sans/open-sans-64-white/open-sans-64-white.fnt"),
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FONT_SANS_128_WHITE: Path.join(dir, "fonts/open-sans/open-sans-128-white/open-sans-128-white.fnt"),
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/**
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* Loads a bitmap font from a file
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* @param {string} file the file path of a .fnt file
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* @param {function(Error, Jimp)} cb (optional) a function to call when the font is loaded
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* @returns {Promise} a promise
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*/
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loadFont(file, cb) {
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if (typeof file !== "string") return throwError.call(this, "file must be a string", cb);
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return new Promise((resolve, reject) => {
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cb = cb || function (err, font) {
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if (err) reject(err);else resolve(font);
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};
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bMFont(file, (err, font) => {
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const chars = {};
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const kernings = {};
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if (err) {
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return throwError.call(this, err, cb);
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}
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for (let i = 0; i < font.chars.length; i++) {
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chars[String.fromCharCode(font.chars[i].id)] = font.chars[i];
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}
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for (let i = 0; i < font.kernings.length; i++) {
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const firstString = String.fromCharCode(font.kernings[i].first);
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kernings[firstString] = kernings[firstString] || {};
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kernings[firstString][String.fromCharCode(font.kernings[i].second)] = font.kernings[i].amount;
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}
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loadPages(this, Path.dirname(file), font.pages).then(pages => {
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cb(null, {
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chars,
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kernings,
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pages,
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common: font.common,
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info: font.info
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});
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});
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});
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});
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}
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},
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class: {
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/**
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* Draws a text on a image on a given boundary
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* @param {Jimp} font a bitmap font loaded from `Jimp.loadFont` command
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* @param {number} x the x position to start drawing the text
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* @param {number} y the y position to start drawing the text
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* @param {any} text the text to draw (string or object with `text`, `alignmentX`, and/or `alignmentY`)
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* @param {number} maxWidth (optional) the boundary width to draw in
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* @param {number} maxHeight (optional) the boundary height to draw in
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* @param {function(Error, Jimp)} cb (optional) a function to call when the text is written
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* @returns {Jimp} this for chaining of methods
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*/
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print(font, x, y, text, maxWidth, maxHeight, cb) {
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if (typeof maxWidth === "function" && typeof cb === "undefined") {
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cb = maxWidth;
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maxWidth = Infinity;
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}
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if (typeof maxWidth === "undefined") {
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maxWidth = Infinity;
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}
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if (typeof maxHeight === "function" && typeof cb === "undefined") {
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cb = maxHeight;
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maxHeight = Infinity;
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}
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if (typeof maxHeight === "undefined") {
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maxHeight = Infinity;
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}
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if (typeof font !== "object") {
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return throwError.call(this, "font must be a Jimp loadFont", cb);
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}
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if (typeof x !== "number" || typeof y !== "number" || typeof maxWidth !== "number") {
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return throwError.call(this, "x, y and maxWidth must be numbers", cb);
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}
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if (typeof maxWidth !== "number") {
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return throwError.call(this, "maxWidth must be a number", cb);
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}
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if (typeof maxHeight !== "number") {
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return throwError.call(this, "maxHeight must be a number", cb);
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}
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let alignmentX;
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let alignmentY;
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if (typeof text === "object" && text.text !== null && text.text !== undefined) {
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alignmentX = text.alignmentX || this.constructor.HORIZONTAL_ALIGN_LEFT;
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alignmentY = text.alignmentY || this.constructor.VERTICAL_ALIGN_TOP;
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({
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text
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} = text);
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} else {
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alignmentX = this.constructor.HORIZONTAL_ALIGN_LEFT;
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alignmentY = this.constructor.VERTICAL_ALIGN_TOP;
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text = text.toString();
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}
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if (maxHeight !== Infinity && alignmentY === this.constructor.VERTICAL_ALIGN_BOTTOM) {
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y += maxHeight - measureTextHeight(font, text, maxWidth);
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} else if (maxHeight !== Infinity && alignmentY === this.constructor.VERTICAL_ALIGN_MIDDLE) {
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y += maxHeight / 2 - measureTextHeight(font, text, maxWidth) / 2;
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}
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const defaultCharWidth = Object.entries(font.chars)[0][1].xadvance;
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const {
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lines,
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longestLine
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} = splitLines(font, text, maxWidth);
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lines.forEach(line => {
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const lineString = line.join(" ");
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const alignmentWidth = xOffsetBasedOnAlignment(this.constructor, font, lineString, maxWidth, alignmentX);
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printText.call(this, font, x + alignmentWidth, y, lineString, defaultCharWidth);
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y += font.common.lineHeight;
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});
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if (isNodePattern(cb)) {
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cb.call(this, null, this, {
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x: x + longestLine,
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y
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});
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}
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return this;
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}
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}
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}));
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//# sourceMappingURL=index.js.map
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