%PDF-
%PDF-
Mini Shell
Mini Shell
/*globals RGBColor, DOMParser, jsPDF*/
/*jslint eqeq:true, vars:true*/
/*
* svgToPdf.js
*
* Copyright 2012-2014 Florian Hülsmann <fh@cbix.de>
* Copyright 2014 Ben Gribaudo <www.bengribaudo.com>
*
* This script is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This script is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this file. If not, see <http://www.gnu.org/licenses/>.
*
*/
(function(jsPDFAPI, undef) {
'use strict';
var pdfSvgAttr = {
// allowed attributes. all others are removed from the preview.
g: ['stroke', 'fill', 'stroke-width'],
line: ['x1', 'y1', 'x2', 'y2', 'stroke', 'stroke-width'],
rect: ['x', 'y', 'width', 'height', 'stroke', 'fill', 'stroke-width'],
ellipse: ['cx', 'cy', 'rx', 'ry', 'stroke', 'fill', 'stroke-width'],
circle: ['cx', 'cy', 'r', 'stroke', 'fill', 'stroke-width'],
text: ['x', 'y', 'font-size', 'font-family', 'text-anchor', 'font-weight', 'font-style', 'fill']
};
var attributeIsNotEmpty = function (node, attr) {
var attVal = attr ? node.getAttribute(attr) : node;
return attVal !== '' && attVal !== null;
};
var nodeIs = function (node, possible) {
return possible.indexOf(node.tagName.toLowerCase()) > -1;
};
var removeAttributes = function(node, attributes) {
var toRemove = [];
[].forEach.call(node.attributes, function(a) {
if (attributeIsNotEmpty(a) && attributes.indexOf(a.name.toLowerCase()) == -1) {
toRemove.push(a.name);
}
});
toRemove.forEach(function(a) {
node.removeAttribute(a.name);
});
};
var svgElementToPdf = function(element, pdf, options) {
// pdf is a jsPDF object
//console.log("options =", options);
var remove = (options.removeInvalid == undef ? false : options.removeInvalid);
var k = (options.scale == undef ? 1.0 : options.scale);
var colorMode = null;
[].forEach.call(element.children, function(node) {
//console.log("passing: ", node);
var hasFillColor = false;
var hasStrokeColor = false;
var fillRGB;
if(nodeIs(node, ['g', 'line', 'rect', 'ellipse', 'circle', 'text'])) {
var fillColor = node.getAttribute('fill');
if(attributeIsNotEmpty(fillColor)) {
fillRGB = new RGBColor(fillColor);
if(fillRGB.ok) {
hasFillColor = true;
colorMode = 'F';
} else {
colorMode = null;
}
}
}
if(nodeIs(node, ['g', 'line', 'rect', 'ellipse', 'circle'])) {
if(hasFillColor) {
pdf.setFillColor(fillRGB.r, fillRGB.g, fillRGB.b);
}
if(attributeIsNotEmpty(node, 'stroke-width')) {
pdf.setLineWidth(k * parseInt(node.getAttribute('stroke-width'), 10));
}
var strokeColor = node.getAttribute('stroke');
if(attributeIsNotEmpty(strokeColor)) {
var strokeRGB = new RGBColor(strokeColor);
if(strokeRGB.ok) {
hasStrokeColor = true;
pdf.setDrawColor(strokeRGB.r, strokeRGB.g, strokeRGB.b);
if(colorMode == 'F') {
colorMode = 'FD';
} else {
colorMode = null;
}
} else {
colorMode = null;
}
}
}
switch(node.tagName.toLowerCase()) {
case 'svg':
case 'a':
case 'g':
svgElementToPdf(node, pdf, options);
removeAttributes(node, pdfSvgAttr.g);
break;
case 'line':
pdf.line(
k*parseInt(node.getAttribute('x1'), 10),
k*parseInt(node.getAttribute('y1'), 10),
k*parseInt(node.getAttribute('x2'), 10),
k*parseInt(node.getAttribute('y2'), 10)
);
removeAttributes(node, pdfSvgAttr.line);
break;
case 'rect':
pdf.rect(
k*parseInt(node.getAttribute('x'), 10),
k*parseInt(node.getAttribute('y'), 10),
k*parseInt(node.getAttribute('width'), 10),
k*parseInt(node.getAttribute('height'), 10),
colorMode
);
removeAttributes(node, pdfSvgAttr.rect);
break;
case 'ellipse':
pdf.ellipse(
k*parseInt(node.getAttribute('cx'), 10),
k*parseInt(node.getAttribute('cy'), 10),
k*parseInt(node.getAttribute('rx'), 10),
k*parseInt(node.getAttribute('ry'), 10),
colorMode
);
removeAttributes(node, pdfSvgAttr.ellipse);
break;
case 'circle':
pdf.circle(
k*parseInt(node.getAttribute('cx'), 10),
k*parseInt(node.getAttribute('cy'), 10),
k*parseInt(node.getAttribute('r'), 10),
colorMode
);
removeAttributes(node, pdfSvgAttr.circle);
break;
case 'text':
if(node.hasAttribute('font-family')) {
switch((node.getAttribute('font-family') || '').toLowerCase()) {
case 'serif': pdf.setFont('times'); break;
case 'monospace': pdf.setFont('courier'); break;
default:
node.setAttribute('font-family', 'sans-serif');
pdf.setFont('helvetica');
}
}
if(hasFillColor) {
pdf.setTextColor(fillRGB.r, fillRGB.g, fillRGB.b);
}
var fontType = "";
if(node.hasAttribute('font-weight')) {
if(node.getAttribute('font-weight') == "bold") {
fontType = "bold";
} else {
node.removeAttribute('font-weight');
}
}
if(node.hasAttribute('font-style')) {
if(node.getAttribute('font-style') == "italic") {
fontType += "italic";
} else {
node.removeAttribute('font-style');
}
}
pdf.setFontType(fontType);
var pdfFontSize = 16;
if(node.hasAttribute('font-size')) {
pdfFontSize = parseInt(node.getAttribute('font-size'), 10);
}
var box = node.getBBox();
//FIXME: use more accurate positioning!!
var x, y, xOffset = 0;
if(node.hasAttribute('text-anchor')) {
switch(node.getAttribute('text-anchor')) {
case 'end': xOffset = box.width; break;
case 'middle': xOffset = box.width / 2; break;
case 'start': break;
case 'default': node.setAttribute('text-anchor', 'start'); break;
}
x = parseInt(node.getAttribute('x'), 10) - xOffset;
y = parseInt(node.getAttribute('y'), 10);
}
//console.log("fontSize:", pdfFontSize, "text:", node.textContent);
pdf.setFontSize(pdfFontSize).text(
k * x,
k * y,
node.textContent
);
removeAttributes(node, pdfSvgAttr.text);
break;
//TODO: image
default:
if (remove) {
console.log("can't translate to pdf:", node);
node.parentNode.removeChild(node);
}
}
});
return pdf;
};
jsPDFAPI.addSVG = function(element, x, y, options) {
options = (options === undef ? {} : options);
options.x_offset = x;
options.y_offset = y;
if (typeof element === 'string') {
element = new DOMParser().parseFromString(element, 'text/xml').documentElement;
}
svgElementToPdf(element, this, options);
return this;
};
}(jsPDF.API));
Zerion Mini Shell 1.0