Edit File: transformsWithOnePath.js
'use strict'; /* * Thanks to http://fontello.com project for sponsoring this plugin */ exports.type = 'full'; exports.active = false; exports.description = 'performs a set of operations on SVG with one path inside (disabled by default)'; exports.params = { // width and height to resize SVG and rescale inner Path width: false, height: false, // scale inner Path without resizing SVG scale: false, // shiftX/Y inner Path shiftX: false, shiftY: false, // crop SVG width along the real width of inner Path hcrop: false, // vertical center inner Path inside SVG height vcenter: false, // stringify params floatPrecision: 3, leadingZero: true, negativeExtraSpace: true }; var _path = require('./_path.js'), relative2absolute = _path.relative2absolute, computeCubicBoundingBox = _path.computeCubicBoundingBox, computeQuadraticBoundingBox = _path.computeQuadraticBoundingBox, applyTransforms = _path.applyTransforms, js2path = _path.js2path, path2js = _path.path2js, EXTEND = require('whet.extend'); exports.fn = function(data, params) { data.content.forEach(function(item) { // only for SVG with one Path inside if (item.isElem('svg') && item.content.length === 1 && item.content[0].isElem('path') ) { var svgElem = item, pathElem = svgElem.content[0], // get absoluted Path data path = relative2absolute(EXTEND(true, [], path2js(pathElem))), xs = [], ys = [], cubicСontrolPoint = [0, 0], quadraticСontrolPoint = [0, 0], lastPoint = [0, 0], cubicBoundingBox, quadraticBoundingBox, i, segment; path.forEach(function(pathItem) { // ML if ('ML'.indexOf(pathItem.instruction) > -1) { for (i = 0; i < pathItem.data.length; i++) { if (i % 2 === 0) { xs.push(pathItem.data[i]); } else { ys.push(pathItem.data[i]); } } lastPoint = cubicСontrolPoint = quadraticСontrolPoint = pathItem.data.slice(-2); // H } else if (pathItem.instruction === 'H') { pathItem.data.forEach(function(d) { xs.push(d); }); lastPoint[0] = cubicСontrolPoint[0] = quadraticСontrolPoint[0] = pathItem.data[pathItem.data.length - 2]; // V } else if (pathItem.instruction === 'V') { pathItem.data.forEach(function(d) { ys.push(d); }); lastPoint[1] = cubicСontrolPoint[1] = quadraticСontrolPoint[1] = pathItem.data[pathItem.data.length - 1]; // C } else if (pathItem.instruction === 'C') { for (i = 0; i < pathItem.data.length; i += 6) { segment = pathItem.data.slice(i, i + 6); cubicBoundingBox = computeCubicBoundingBox.apply(this, lastPoint.concat(segment)); xs.push(cubicBoundingBox.minx); xs.push(cubicBoundingBox.maxx); ys.push(cubicBoundingBox.miny); ys.push(cubicBoundingBox.maxy); // reflected control point for the next possible S cubicСontrolPoint = [ 2 * segment[4] - segment[2], 2 * segment[5] - segment[3] ]; lastPoint = segment.slice(-2); } // S } else if (pathItem.instruction === 'S') { for (i = 0; i < pathItem.data.length; i += 4) { segment = pathItem.data.slice(i, i + 4); cubicBoundingBox = computeCubicBoundingBox.apply(this, lastPoint.concat(cubicСontrolPoint).concat(segment)); xs.push(cubicBoundingBox.minx); xs.push(cubicBoundingBox.maxx); ys.push(cubicBoundingBox.miny); ys.push(cubicBoundingBox.maxy); // reflected control point for the next possible S cubicСontrolPoint = [ 2 * segment[2] - cubicСontrolPoint[0], 2 * segment[3] - cubicСontrolPoint[1], ]; lastPoint = segment.slice(-2); } // Q } else if (pathItem.instruction === 'Q') { for (i = 0; i < pathItem.data.length; i += 4) { segment = pathItem.data.slice(i, i + 4); quadraticBoundingBox = computeQuadraticBoundingBox.apply(this, lastPoint.concat(segment)); xs.push(quadraticBoundingBox.minx); xs.push(quadraticBoundingBox.maxx); ys.push(quadraticBoundingBox.miny); ys.push(quadraticBoundingBox.maxy); // reflected control point for the next possible T quadraticСontrolPoint = [ 2 * segment[2] - segment[0], 2 * segment[3] - segment[1] ]; lastPoint = segment.slice(-2); } // S } else if (pathItem.instruction === 'T') { for (i = 0; i < pathItem.data.length; i += 2) { segment = pathItem.data.slice(i, i + 2); quadraticBoundingBox = computeQuadraticBoundingBox.apply(this, lastPoint.concat(quadraticСontrolPoint).concat(segment)); xs.push(quadraticBoundingBox.minx); xs.push(quadraticBoundingBox.maxx); ys.push(quadraticBoundingBox.miny); ys.push(quadraticBoundingBox.maxy); // reflected control point for the next possible T quadraticСontrolPoint = [ 2 * segment[0] - quadraticСontrolPoint[0], 2 * segment[1] - quadraticСontrolPoint[1] ]; lastPoint = segment.slice(-2); } } }); var xmin = Math.min.apply(this, xs).toFixed(params.floatPrecision), xmax = Math.max.apply(this, xs).toFixed(params.floatPrecision), ymin = Math.min.apply(this, ys).toFixed(params.floatPrecision), ymax = Math.max.apply(this, ys).toFixed(params.floatPrecision), svgWidth = +svgElem.attr('width').value, svgHeight = +svgElem.attr('height').value, realWidth = Math.round(xmax - xmin), realHeight = Math.round(ymax - ymin), transform = '', scale; // width & height if (params.width && params.height) { scale = Math.min(params.width / svgWidth, params.height / svgHeight); realWidth = realWidth * scale; realHeight = realHeight * scale; svgWidth = svgElem.attr('width').value = params.width; svgHeight = svgElem.attr('height').value = params.height; transform += ' scale(' + scale + ')'; // width } else if (params.width && !params.height) { scale = params.width / svgWidth; realWidth = realWidth * scale; realHeight = realHeight * scale; svgWidth = svgElem.attr('width').value = params.width; svgHeight = svgElem.attr('height').value = svgHeight * scale; transform += ' scale(' + scale + ')'; // height } else if (params.height && !params.width) { scale = params.height / svgHeight; realWidth = realWidth * scale; realHeight = realHeight * scale; svgWidth = svgElem.attr('width').value = svgWidth * scale; svgHeight = svgElem.attr('height').value = params.height; transform += ' scale(' + scale + ')'; } // shiftX if (params.shiftX) { transform += ' translate(' + realWidth * params.shiftX + ', 0)'; } // shiftY if (params.shiftY) { transform += ' translate(0, ' + realHeight * params.shiftY + ')'; } // scale if (params.scale) { scale = params.scale; var shiftX = svgWidth / 2, shiftY = svgHeight / 2; realWidth = realWidth * scale; realHeight = realHeight * scale; if (params.shiftX || params.shiftY) { transform += ' scale(' + scale + ')'; } else { transform += ' translate(' + shiftX + ' ' + shiftY + ') scale(' + scale + ') translate(-' + shiftX + ' -' + shiftY + ')'; } } // hcrop if (params.hcrop) { transform += ' translate(' + (-xmin) + ' 0)'; svgElem.attr('width').value = realWidth; } // vcenter if (params.vcenter) { transform += ' translate(0 ' + (((svgHeight - realHeight) / 2) - ymin) + ')'; } if (transform) { pathElem.addAttr({ name: 'transform', prefix: '', local: 'transform', value: transform }); path = applyTransforms(pathElem, pathElem.pathJS, true, params.floatPrecision); // transformed data rounding path.forEach(function(pathItem) { if (pathItem.data) { pathItem.data = pathItem.data.map(function(num) { return +num.toFixed(params.floatPrecision); }); } }); // save new js2path(pathElem, path, params); } } }); return data; };
Back to File Manager