sysutils/svgo
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Convert abolute lengths to pixel values

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This commit is contained in:
GreLI
2015-02-23 18:19:51 +03:00
parent 1e81329982
commit 02dcf78d74
3 changed files with 41 additions and 7 deletions
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23
plugins/cleanupNumericValues.js
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@ -7,11 +7,19 @@ exports.active = true;
exports.params = {
floatPrecision: 3,
leadingZero: true,
defaultPx: true
defaultPx: true,
convertToPx: true
};
var regNumericValues = /^([\-+]?\d*\.?\d+([eE][\-+]?\d+)?)(px|pt|pc|mm|cm|m|in|ft|em|ex|%)?$/,
removeLeadingZero = require('../lib/svgo/tools').removeLeadingZero;
removeLeadingZero = require('../lib/svgo/tools').removeLeadingZero,
absoluteLengths = { // relative to px
cm: 96/2.54,
mm: 9600/2.54,
in: 96,
pt: 4/3,
pc: 16
};
/**
* Round numeric values to the fixed precision,
@ -34,10 +42,19 @@ exports.fn = function(item, params) {
// if attribute value matches regNumericValues
if (match) {
// round it to the fixed precision
// round it to the fixed precision
var num = +(+match[1]).toFixed(params.floatPrecision),
units = match[3] || '';
// convert absolute values to pixels
if (params.convertToPx && units && (units in absoluteLengths)) {
var pxNum = +(absoluteLengths[units] * match[1]).toFixed(params.floatPrecision);
if (String(pxNum).length < match[0].length)
num = pxNum,
units = 'px';
}
// and remove leading zero
if (params.leadingZero) {
num = removeLeadingZero(num);