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- /* eslint key-spacing: ["error", { "align": "value" }] */
- import { Jimp, getTestDir, hasOwnProp } from '@jimp/test-utils';
- import configure from '@jimp/custom';
- import blit from '@jimp/plugin-blit';
- import print from '../src';
- const jimp = configure({ plugins: [print, blit] }, Jimp);
- async function createTextImage(
- width,
- height,
- font,
- { x = 0, y = 0, text, maxWidth, maxHeight }
- ) {
- const loadedFont = await jimp.loadFont(font);
- const image = await Jimp.create(width, height, 0xffffffff);
- return image.print(loadedFont, x, y, text, maxWidth, maxHeight);
- }
- describe('Write text over image', function() {
- this.timeout(30000);
- const fontDefs = {
- SANS_8_BLACK: { w: 28, h: 28, bg: 0xffffffff },
- SANS_16_BLACK: { w: 54, h: 54, bg: 0xffffffff },
- SANS_32_BLACK: { w: 114, h: 114, bg: 0xffffffff },
- SANS_64_BLACK: { w: 220, h: 220, bg: 0xffffffff },
- SANS_8_WHITE: { w: 28, h: 28, bg: 0x000000ff },
- SANS_16_WHITE: { w: 54, h: 54, bg: 0x000000ff },
- SANS_32_WHITE: { w: 114, h: 114, bg: 0x000000ff },
- SANS_64_WHITE: { w: 220, h: 220, bg: 0x000000ff }
- };
- for (const fontName in fontDefs)
- if (hasOwnProp(fontDefs, fontName))
- ((fontName, conf) => {
- it('Jimp preset ' + fontName + ' bitmap font', async () => {
- const font = await jimp.loadFont(Jimp['FONT_' + fontName]);
- const expected =
- getTestDir(__dirname) + '/images/' + fontName + '.png';
- const expectedImg = await Jimp.read(expected);
- const image = await Jimp.create(conf.w, conf.h, conf.bg);
- image
- .print(font, 0, 0, 'This is only a test.', image.bitmap.width)
- .bitmap.data.should.be.deepEqual(expectedImg.bitmap.data);
- });
- })(fontName, fontDefs[fontName]);
- it('Jimp preset SANS_16_BLACK bitmap font positioned', async () => {
- const font = await jimp.loadFont(Jimp.FONT_SANS_16_BLACK);
- const expected =
- getTestDir(__dirname) + '/images/SANS_16_BLACK-positioned.png';
- const expectedImg = await Jimp.read(expected);
- const image = await Jimp.create('300', '100', 0xff8800ff);
- image
- .print(font, 150, 50, 'This is only a test.', 100)
- .bitmap.data.should.be.deepEqual(expectedImg.bitmap.data);
- });
- it('Jimp loads font from URL', async () => {
- const font = await Jimp.loadFont(
- 'https://raw.githubusercontent.com/oliver-moran/jimp/master/packages/plugin-print/fonts/open-sans/open-sans-16-black/open-sans-16-black.fnt'
- );
- const expected =
- getTestDir(__dirname) + '/images/SANS_16_BLACK-positioned.png';
- const expectedImg = await Jimp.read(expected);
- const image = await Jimp.create('300', '100', 0xff8800ff);
- image
- .print(font, 150, 50, 'This is only a test.', 100)
- .bitmap.data.should.be.deepEqual(expectedImg.bitmap.data);
- });
- it('Jimp renders ? for unknown characters', async () => {
- const font = await jimp.loadFont(Jimp.FONT_SANS_16_BLACK);
- const expected = getTestDir(__dirname) + '/images/unknown-char-test.png';
- const expectedImg = await Jimp.read(expected);
- const image = await Jimp.read('300', '100', 0xff8800ff);
- image
- .print(font, 0, 0, 'ツ ツ ツ', 100)
- .bitmap.data.should.be.deepEqual(expectedImg.bitmap.data);
- });
- it('Jimp can print numbers too', async () => {
- const font = await Jimp.loadFont(Jimp.FONT_SANS_16_BLACK);
- const expected = getTestDir(__dirname) + '/images/print-number.png';
- const expectedImg = await Jimp.read(expected);
- const image = await Jimp.read('300', '100', 0xff8800ff);
- image
- .print(font, 0, 0, 12345678, 100)
- .bitmap.data.should.be.deepEqual(expectedImg.bitmap.data);
- });
- it('left-align text by default', async () => {
- const expectedImage = await Jimp.read(
- getTestDir(__dirname) + '/images/left-aligned.png'
- );
- const textImage = await createTextImage(320, 240, Jimp.FONT_SANS_16_BLACK, {
- text: 'This is only a test.',
- maxWidth: 100
- });
- expectedImage.bitmap.data.should.be.deepEqual(textImage.bitmap.data);
- });
- it('left-align text by default when passing object', async () => {
- const expectedImage = await Jimp.read(
- getTestDir(__dirname) + '/images/left-aligned.png'
- );
- const textImage = await createTextImage(320, 240, Jimp.FONT_SANS_16_BLACK, {
- text: { text: 'This is only a test.' },
- maxWidth: 100
- });
- expectedImage.bitmap.data.should.be.deepEqual(textImage.bitmap.data);
- });
- it('left-align text when passing object with alignmentX', async () => {
- const expectedImage = await Jimp.read(
- getTestDir(__dirname) + '/images/left-aligned.png'
- );
- const textImage = await createTextImage(320, 240, Jimp.FONT_SANS_16_BLACK, {
- text: {
- text: 'This is only a test.',
- alignmentX: Jimp.HORIZONTAL_ALIGN_LEFT
- },
- maxWidth: 100
- });
- expectedImage.bitmap.data.should.be.deepEqual(textImage.bitmap.data);
- });
- it('center-align text when passing object with alignmentX', async () => {
- const expectedImage = await Jimp.read(
- getTestDir(__dirname) + '/images/center-aligned.png'
- );
- const textImage = await createTextImage(320, 240, Jimp.FONT_SANS_16_BLACK, {
- text: {
- text: 'This is only a test.',
- alignmentX: Jimp.HORIZONTAL_ALIGN_CENTER
- },
- maxWidth: 100
- });
- expectedImage.bitmap.data.should.be.deepEqual(textImage.bitmap.data);
- });
- it('right-align text when passing object with alignmentX', async () => {
- const expectedImage = await Jimp.read(
- getTestDir(__dirname) + '/images/right-aligned.png'
- );
- const textImage = await createTextImage(320, 240, Jimp.FONT_SANS_16_BLACK, {
- text: {
- text: 'This is only a test.',
- alignmentX: Jimp.HORIZONTAL_ALIGN_RIGHT
- },
- maxWidth: 100
- });
- expectedImage.bitmap.data.should.be.deepEqual(textImage.bitmap.data);
- });
- it('middle-align text when passing object with alignmentY', async () => {
- const expectedImage = await Jimp.read(
- getTestDir(__dirname) + '/images/middle-aligned.png'
- );
- const textImage = await createTextImage(320, 240, Jimp.FONT_SANS_16_BLACK, {
- text: {
- text: 'This is only a test.',
- alignmentY: Jimp.VERTICAL_ALIGN_MIDDLE
- },
- maxWidth: 100,
- maxHeight: 240
- });
- expectedImage.bitmap.data.should.be.deepEqual(textImage.bitmap.data);
- });
- it('middle-align text when passing object with alignmentY can offset y', async () => {
- const expectedImage = await Jimp.read(
- getTestDir(__dirname) + '/images/middle-aligned-y.png'
- );
- const textImage = await createTextImage(320, 240, Jimp.FONT_SANS_16_BLACK, {
- y: 50,
- text: {
- text: 'This is only a test.',
- alignmentY: Jimp.VERTICAL_ALIGN_MIDDLE
- },
- maxWidth: 100,
- maxHeight: 240
- });
- expectedImage.bitmap.data.should.be.deepEqual(textImage.bitmap.data);
- });
- it('bottom-align text when passing object with alignmentY', async () => {
- const expectedImage = await Jimp.read(
- getTestDir(__dirname) + '/images/bottom-aligned.png'
- );
- const textImage = await createTextImage(320, 240, Jimp.FONT_SANS_16_BLACK, {
- text: {
- text: 'This is only a test.',
- alignmentY: Jimp.VERTICAL_ALIGN_BOTTOM
- },
- maxWidth: 100,
- maxHeight: 240
- });
- expectedImage.bitmap.data.should.be.deepEqual(textImage.bitmap.data);
- });
- it('bottom-align text when passing object with alignmentY offset y', async () => {
- const expectedImage = await Jimp.read(
- getTestDir(__dirname) + '/images/bottom-aligned-y.png'
- );
- const textImage = await createTextImage(320, 240, Jimp.FONT_SANS_16_BLACK, {
- y: 100,
- text: {
- text: 'This is only a test.',
- alignmentY: Jimp.VERTICAL_ALIGN_BOTTOM
- },
- maxWidth: 100,
- maxHeight: 100
- });
- expectedImage.bitmap.data.should.be.deepEqual(textImage.bitmap.data);
- });
- it('exposes print y position in cb', async () => {
- const expectedImage = await Jimp.read(
- getTestDir(__dirname) + '/images/spacing.png'
- );
- const loadedFont = await jimp.loadFont(Jimp.FONT_SANS_16_BLACK);
- const image = await Jimp.create(500, 500, 0xffffffff);
- image.print(
- loadedFont,
- 0,
- 0,
- 'One two three four fix six seven eight nine ten eleven twelve',
- 250,
- (err, image, { x, y }) => {
- image.print(
- loadedFont,
- x,
- y + 50,
- 'thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty',
- 250
- );
- }
- );
- expectedImage.bitmap.data.should.be.deepEqual(image.bitmap.data);
- });
- });
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