import { RADIAN_TO_DEGREE, retrieve2, logError, isFunction } from '../core/util.js';
|
import { parse } from '../tool/color.js';
|
import env from '../core/env.js';
|
var mathRound = Math.round;
|
export function normalizeColor(color) {
|
var opacity;
|
if (!color || color === 'transparent') {
|
color = 'none';
|
}
|
else if (typeof color === 'string' && color.indexOf('rgba') > -1) {
|
var arr = parse(color);
|
if (arr) {
|
color = 'rgb(' + arr[0] + ',' + arr[1] + ',' + arr[2] + ')';
|
opacity = arr[3];
|
}
|
}
|
return {
|
color: color,
|
opacity: opacity == null ? 1 : opacity
|
};
|
}
|
var EPSILON = 1e-4;
|
export function isAroundZero(transform) {
|
return transform < EPSILON && transform > -EPSILON;
|
}
|
export function round3(transform) {
|
return mathRound(transform * 1e3) / 1e3;
|
}
|
export function round4(transform) {
|
return mathRound(transform * 1e4) / 1e4;
|
}
|
export function round1(transform) {
|
return mathRound(transform * 10) / 10;
|
}
|
export function getMatrixStr(m) {
|
return 'matrix('
|
+ round3(m[0]) + ','
|
+ round3(m[1]) + ','
|
+ round3(m[2]) + ','
|
+ round3(m[3]) + ','
|
+ round4(m[4]) + ','
|
+ round4(m[5])
|
+ ')';
|
}
|
export var TEXT_ALIGN_TO_ANCHOR = {
|
left: 'start',
|
right: 'end',
|
center: 'middle',
|
middle: 'middle'
|
};
|
export function adjustTextY(y, lineHeight, textBaseline) {
|
if (textBaseline === 'top') {
|
y += lineHeight / 2;
|
}
|
else if (textBaseline === 'bottom') {
|
y -= lineHeight / 2;
|
}
|
return y;
|
}
|
export function hasShadow(style) {
|
return style
|
&& (style.shadowBlur || style.shadowOffsetX || style.shadowOffsetY);
|
}
|
export function getShadowKey(displayable) {
|
var style = displayable.style;
|
var globalScale = displayable.getGlobalScale();
|
return [
|
style.shadowColor,
|
(style.shadowBlur || 0).toFixed(2),
|
(style.shadowOffsetX || 0).toFixed(2),
|
(style.shadowOffsetY || 0).toFixed(2),
|
globalScale[0],
|
globalScale[1]
|
].join(',');
|
}
|
export function getClipPathsKey(clipPaths) {
|
var key = [];
|
if (clipPaths) {
|
for (var i = 0; i < clipPaths.length; i++) {
|
var clipPath = clipPaths[i];
|
key.push(clipPath.id);
|
}
|
}
|
return key.join(',');
|
}
|
export function isImagePattern(val) {
|
return val && (!!val.image);
|
}
|
export function isSVGPattern(val) {
|
return val && (!!val.svgElement);
|
}
|
export function isPattern(val) {
|
return isImagePattern(val) || isSVGPattern(val);
|
}
|
export function isLinearGradient(val) {
|
return val.type === 'linear';
|
}
|
export function isRadialGradient(val) {
|
return val.type === 'radial';
|
}
|
export function isGradient(val) {
|
return val && (val.type === 'linear'
|
|| val.type === 'radial');
|
}
|
export function getIdURL(id) {
|
return "url(#" + id + ")";
|
}
|
export function getPathPrecision(el) {
|
var scale = el.getGlobalScale();
|
var size = Math.max(scale[0], scale[1]);
|
return Math.max(Math.ceil(Math.log(size) / Math.log(10)), 1);
|
}
|
export function getSRTTransformString(transform) {
|
var x = transform.x || 0;
|
var y = transform.y || 0;
|
var rotation = (transform.rotation || 0) * RADIAN_TO_DEGREE;
|
var scaleX = retrieve2(transform.scaleX, 1);
|
var scaleY = retrieve2(transform.scaleY, 1);
|
var skewX = transform.skewX || 0;
|
var skewY = transform.skewY || 0;
|
var res = [];
|
if (x || y) {
|
res.push("translate(" + x + "px," + y + "px)");
|
}
|
if (rotation) {
|
res.push("rotate(" + rotation + ")");
|
}
|
if (scaleX !== 1 || scaleY !== 1) {
|
res.push("scale(" + scaleX + "," + scaleY + ")");
|
}
|
if (skewX || skewY) {
|
res.push("skew(" + mathRound(skewX * RADIAN_TO_DEGREE) + "deg, " + mathRound(skewY * RADIAN_TO_DEGREE) + "deg)");
|
}
|
return res.join(' ');
|
}
|
export var encodeBase64 = (function () {
|
if (env.hasGlobalWindow && isFunction(window.btoa)) {
|
return function (str) {
|
return window.btoa(unescape(str));
|
};
|
}
|
if (typeof Buffer !== 'undefined') {
|
return function (str) {
|
return Buffer.from(str).toString('base64');
|
};
|
}
|
return function (str) {
|
if (process.env.NODE_ENV !== 'production') {
|
logError('Base64 isn\'t natively supported in the current environment.');
|
}
|
return null;
|
};
|
})();
|
