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-rw-r--r--node_modules/svgo/plugins/applyTransforms.js388
1 files changed, 0 insertions, 388 deletions
diff --git a/node_modules/svgo/plugins/applyTransforms.js b/node_modules/svgo/plugins/applyTransforms.js
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--- a/node_modules/svgo/plugins/applyTransforms.js
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-'use strict';
-
-/**
- * @typedef {import('../lib/types').PathDataItem} PathDataItem
- * @typedef {import('../lib/types').XastElement} XastElement
- */
-
-const { collectStylesheet, computeStyle } = require('../lib/style.js');
-const {
- transformsMultiply,
- transform2js,
- transformArc,
-} = require('./_transforms.js');
-const { path2js } = require('./_path.js');
-const {
- removeLeadingZero,
- includesUrlReference,
-} = require('../lib/svgo/tools.js');
-const { referencesProps, attrsGroupsDefaults } = require('./_collections.js');
-
-/**
- * @typedef {PathDataItem[]} PathData
- * @typedef {number[]} Matrix
- */
-
-const regNumericValues = /[-+]?(\d*\.\d+|\d+\.?)(?:[eE][-+]?\d+)?/g;
-
-/**
- * Apply transformation(s) to the Path data.
- *
- * @type {import('../lib/types').Plugin<{
- * transformPrecision: number,
- * applyTransformsStroked: boolean,
- * }>}
- */
-const applyTransforms = (root, params) => {
- const stylesheet = collectStylesheet(root);
- return {
- element: {
- enter: (node) => {
- if (node.attributes.d == null) {
- return;
- }
-
- // stroke and stroke-width can be redefined with <use>
- if (node.attributes.id != null) {
- return;
- }
-
- // if there are no 'stroke' attr and references to other objects such as
- // gradients or clip-path which are also subjects to transform.
- if (
- node.attributes.transform == null ||
- node.attributes.transform === '' ||
- // styles are not considered when applying transform
- // can be fixed properly with new style engine
- node.attributes.style != null ||
- Object.entries(node.attributes).some(
- ([name, value]) =>
- referencesProps.has(name) && includesUrlReference(value),
- )
- ) {
- return;
- }
-
- const computedStyle = computeStyle(stylesheet, node);
- const transformStyle = computedStyle.transform;
-
- // Transform overridden in <style> tag which is not considered
- if (
- transformStyle.type === 'static' &&
- transformStyle.value !== node.attributes.transform
- ) {
- return;
- }
-
- const matrix = transformsMultiply(
- transform2js(node.attributes.transform),
- );
-
- const stroke =
- computedStyle.stroke?.type === 'static'
- ? computedStyle.stroke.value
- : null;
-
- const strokeWidth =
- computedStyle['stroke-width']?.type === 'static'
- ? computedStyle['stroke-width'].value
- : null;
- const transformPrecision = params.transformPrecision;
-
- if (
- computedStyle.stroke?.type === 'dynamic' ||
- computedStyle['stroke-width']?.type === 'dynamic'
- ) {
- return;
- }
-
- const scale = Number(
- Math.sqrt(
- matrix.data[0] * matrix.data[0] + matrix.data[1] * matrix.data[1],
- ).toFixed(transformPrecision),
- );
-
- if (stroke && stroke != 'none') {
- if (!params.applyTransformsStroked) {
- return;
- }
-
- // stroke cannot be transformed with different vertical and horizontal scale or skew
- if (
- (matrix.data[0] !== matrix.data[3] ||
- matrix.data[1] !== -matrix.data[2]) &&
- (matrix.data[0] !== -matrix.data[3] ||
- matrix.data[1] !== matrix.data[2])
- ) {
- return;
- }
-
- // apply transform to stroke-width, stroke-dashoffset and stroke-dasharray
- if (scale !== 1) {
- if (node.attributes['vector-effect'] !== 'non-scaling-stroke') {
- node.attributes['stroke-width'] = (
- strokeWidth || attrsGroupsDefaults.presentation['stroke-width']
- )
- .trim()
- .replace(regNumericValues, (num) =>
- removeLeadingZero(Number(num) * scale),
- );
-
- if (node.attributes['stroke-dashoffset'] != null) {
- node.attributes['stroke-dashoffset'] = node.attributes[
- 'stroke-dashoffset'
- ]
- .trim()
- .replace(regNumericValues, (num) =>
- removeLeadingZero(Number(num) * scale),
- );
- }
-
- if (node.attributes['stroke-dasharray'] != null) {
- node.attributes['stroke-dasharray'] = node.attributes[
- 'stroke-dasharray'
- ]
- .trim()
- .replace(regNumericValues, (num) =>
- removeLeadingZero(Number(num) * scale),
- );
- }
- }
- }
- }
-
- const pathData = path2js(node);
- applyMatrixToPathData(pathData, matrix.data);
-
- // remove transform attr
- delete node.attributes.transform;
- },
- },
- };
-};
-exports.applyTransforms = applyTransforms;
-
-/**
- * @type {(matrix: Matrix, x: number, y: number) => [number, number]}
- */
-const transformAbsolutePoint = (matrix, x, y) => {
- const newX = matrix[0] * x + matrix[2] * y + matrix[4];
- const newY = matrix[1] * x + matrix[3] * y + matrix[5];
- return [newX, newY];
-};
-
-/**
- * @type {(matrix: Matrix, x: number, y: number) => [number, number]}
- */
-const transformRelativePoint = (matrix, x, y) => {
- const newX = matrix[0] * x + matrix[2] * y;
- const newY = matrix[1] * x + matrix[3] * y;
- return [newX, newY];
-};
-
-/**
- * @type {(pathData: PathData, matrix: Matrix) => void}
- */
-const applyMatrixToPathData = (pathData, matrix) => {
- /**
- * @type {[number, number]}
- */
- const start = [0, 0];
- /**
- * @type {[number, number]}
- */
- const cursor = [0, 0];
-
- for (const pathItem of pathData) {
- let { command, args } = pathItem;
-
- // moveto (x y)
- if (command === 'M') {
- cursor[0] = args[0];
- cursor[1] = args[1];
- start[0] = cursor[0];
- start[1] = cursor[1];
- const [x, y] = transformAbsolutePoint(matrix, args[0], args[1]);
- args[0] = x;
- args[1] = y;
- }
- if (command === 'm') {
- cursor[0] += args[0];
- cursor[1] += args[1];
- start[0] = cursor[0];
- start[1] = cursor[1];
- const [x, y] = transformRelativePoint(matrix, args[0], args[1]);
- args[0] = x;
- args[1] = y;
- }
-
- // horizontal lineto (x)
- // convert to lineto to handle two-dimentional transforms
- if (command === 'H') {
- command = 'L';
- args = [args[0], cursor[1]];
- }
- if (command === 'h') {
- command = 'l';
- args = [args[0], 0];
- }
-
- // vertical lineto (y)
- // convert to lineto to handle two-dimentional transforms
- if (command === 'V') {
- command = 'L';
- args = [cursor[0], args[0]];
- }
- if (command === 'v') {
- command = 'l';
- args = [0, args[0]];
- }
-
- // lineto (x y)
- if (command === 'L') {
- cursor[0] = args[0];
- cursor[1] = args[1];
- const [x, y] = transformAbsolutePoint(matrix, args[0], args[1]);
- args[0] = x;
- args[1] = y;
- }
- if (command === 'l') {
- cursor[0] += args[0];
- cursor[1] += args[1];
- const [x, y] = transformRelativePoint(matrix, args[0], args[1]);
- args[0] = x;
- args[1] = y;
- }
-
- // curveto (x1 y1 x2 y2 x y)
- if (command === 'C') {
- cursor[0] = args[4];
- cursor[1] = args[5];
- const [x1, y1] = transformAbsolutePoint(matrix, args[0], args[1]);
- const [x2, y2] = transformAbsolutePoint(matrix, args[2], args[3]);
- const [x, y] = transformAbsolutePoint(matrix, args[4], args[5]);
- args[0] = x1;
- args[1] = y1;
- args[2] = x2;
- args[3] = y2;
- args[4] = x;
- args[5] = y;
- }
- if (command === 'c') {
- cursor[0] += args[4];
- cursor[1] += args[5];
- const [x1, y1] = transformRelativePoint(matrix, args[0], args[1]);
- const [x2, y2] = transformRelativePoint(matrix, args[2], args[3]);
- const [x, y] = transformRelativePoint(matrix, args[4], args[5]);
- args[0] = x1;
- args[1] = y1;
- args[2] = x2;
- args[3] = y2;
- args[4] = x;
- args[5] = y;
- }
-
- // smooth curveto (x2 y2 x y)
- if (command === 'S') {
- cursor[0] = args[2];
- cursor[1] = args[3];
- const [x2, y2] = transformAbsolutePoint(matrix, args[0], args[1]);
- const [x, y] = transformAbsolutePoint(matrix, args[2], args[3]);
- args[0] = x2;
- args[1] = y2;
- args[2] = x;
- args[3] = y;
- }
- if (command === 's') {
- cursor[0] += args[2];
- cursor[1] += args[3];
- const [x2, y2] = transformRelativePoint(matrix, args[0], args[1]);
- const [x, y] = transformRelativePoint(matrix, args[2], args[3]);
- args[0] = x2;
- args[1] = y2;
- args[2] = x;
- args[3] = y;
- }
-
- // quadratic Bézier curveto (x1 y1 x y)
- if (command === 'Q') {
- cursor[0] = args[2];
- cursor[1] = args[3];
- const [x1, y1] = transformAbsolutePoint(matrix, args[0], args[1]);
- const [x, y] = transformAbsolutePoint(matrix, args[2], args[3]);
- args[0] = x1;
- args[1] = y1;
- args[2] = x;
- args[3] = y;
- }
- if (command === 'q') {
- cursor[0] += args[2];
- cursor[1] += args[3];
- const [x1, y1] = transformRelativePoint(matrix, args[0], args[1]);
- const [x, y] = transformRelativePoint(matrix, args[2], args[3]);
- args[0] = x1;
- args[1] = y1;
- args[2] = x;
- args[3] = y;
- }
-
- // smooth quadratic Bézier curveto (x y)
- if (command === 'T') {
- cursor[0] = args[0];
- cursor[1] = args[1];
- const [x, y] = transformAbsolutePoint(matrix, args[0], args[1]);
- args[0] = x;
- args[1] = y;
- }
- if (command === 't') {
- cursor[0] += args[0];
- cursor[1] += args[1];
- const [x, y] = transformRelativePoint(matrix, args[0], args[1]);
- args[0] = x;
- args[1] = y;
- }
-
- // elliptical arc (rx ry x-axis-rotation large-arc-flag sweep-flag x y)
- if (command === 'A') {
- transformArc(cursor, args, matrix);
- cursor[0] = args[5];
- cursor[1] = args[6];
- // reduce number of digits in rotation angle
- if (Math.abs(args[2]) > 80) {
- const a = args[0];
- const rotation = args[2];
- args[0] = args[1];
- args[1] = a;
- args[2] = rotation + (rotation > 0 ? -90 : 90);
- }
- const [x, y] = transformAbsolutePoint(matrix, args[5], args[6]);
- args[5] = x;
- args[6] = y;
- }
- if (command === 'a') {
- transformArc([0, 0], args, matrix);
- cursor[0] += args[5];
- cursor[1] += args[6];
- // reduce number of digits in rotation angle
- if (Math.abs(args[2]) > 80) {
- const a = args[0];
- const rotation = args[2];
- args[0] = args[1];
- args[1] = a;
- args[2] = rotation + (rotation > 0 ? -90 : 90);
- }
- const [x, y] = transformRelativePoint(matrix, args[5], args[6]);
- args[5] = x;
- args[6] = y;
- }
-
- // closepath
- if (command === 'z' || command === 'Z') {
- cursor[0] = start[0];
- cursor[1] = start[1];
- }
-
- pathItem.command = command;
- pathItem.args = args;
- }
-};
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