1890 lines
76 KiB
JavaScript
1890 lines
76 KiB
JavaScript
/** @preserve jsPDF 0.9.0rc2 ( ${buildDate} ${commitID} )
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Copyright (c) 2010-2012 James Hall, james@snapshotmedia.co.uk, https://github.com/MrRio/jsPDF
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Copyright (c) 2012 Willow Systems Corporation, willow-systems.com
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MIT license.
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*/
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/*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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* ====================================================================
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*/
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/**
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Creates new jsPDF document object instance
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@class
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@param orientation One of "portrait" or "landscape" (or shortcuts "p" (Default), "l")
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@param unit Measurement unit to be used when coordinates are specified. One of "pt" (points), "mm" (Default), "cm", "in"
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@param format One of 'a3', 'a4' (Default),'a5' ,'letter' ,'legal'
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@returns {jsPDF}
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@name jsPDF
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*/
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var jsPDF = (function () {
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'use strict';
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/*jslint browser:true, plusplus: true, bitwise: true, nomen: true */
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/*global document: false, btoa, atob, zpipe, Uint8Array, ArrayBuffer, Blob, saveAs, adler32cs, Deflater */
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// this will run on <=IE9, possibly some niche browsers
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// new webkit-based, FireFox, IE10 already have native version of this.
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if (typeof btoa === 'undefined') {
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window.btoa = function (data) {
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// DO NOT ADD UTF8 ENCODING CODE HERE!!!!
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// UTF8 encoding encodes bytes over char code 128
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// and, essentially, turns an 8-bit binary streams
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// (that base64 can deal with) into 7-bit binary streams.
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// (by default server does not know that and does not recode the data back to 8bit)
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// You destroy your data.
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// binary streams like jpeg image data etc, while stored in JavaScript strings,
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// (which are 16bit arrays) are in 8bit format already.
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// You do NOT need to char-encode that before base64 encoding.
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// if you, by act of fate
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// have string which has individual characters with code
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// above 255 (pure unicode chars), encode that BEFORE you base64 here.
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// you can use absolutely any approch there, as long as in the end,
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// base64 gets an 8bit (char codes 0 - 255) stream.
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// when you get it on the server after un-base64, you must
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// UNencode it too, to get back to 16, 32bit or whatever original bin stream.
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// Note, Yes, JavaScript strings are, in most cases UCS-2 -
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// 16-bit character arrays. This does not mean, however,
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// that you always have to UTF8 it before base64.
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// it means that if you have actual characters anywhere in
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// that string that have char code above 255, you need to
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// recode *entire* string from 16-bit (or 32bit) to 8-bit array.
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// You can do binary split to UTF16 (BE or LE)
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// you can do utf8, you can split the thing by hand and prepend BOM to it,
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// but whatever you do, make sure you mirror the opposite on
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// the server. If server does not expect to post-process un-base64
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// 8-bit binary stream, think very very hard about messing around with encoding.
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// so, long story short:
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// DO NOT ADD UTF8 ENCODING CODE HERE!!!!
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/* @preserve
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====================================================================
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base64 encoder
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MIT, GPL
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version: 1109.2015
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discuss at: http://phpjs.org/functions/base64_encode
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+ original by: Tyler Akins (http://rumkin.com)
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+ improved by: Bayron Guevara
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+ improved by: Thunder.m
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+ improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
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+ bugfixed by: Pellentesque Malesuada
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+ improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
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+ improved by: Rafal Kukawski (http://kukawski.pl)
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+ Daniel Dotsenko, Willow Systems Corp, willow-systems.com
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====================================================================
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*/
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var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
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b64a = b64.split(''),
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o1,
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o2,
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o3,
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h1,
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h2,
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h3,
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h4,
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bits,
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i = 0,
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ac = 0,
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enc = "",
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tmp_arr = [],
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r;
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do { // pack three octets into four hexets
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o1 = data.charCodeAt(i++);
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o2 = data.charCodeAt(i++);
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o3 = data.charCodeAt(i++);
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bits = o1 << 16 | o2 << 8 | o3;
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h1 = bits >> 18 & 0x3f;
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h2 = bits >> 12 & 0x3f;
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h3 = bits >> 6 & 0x3f;
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h4 = bits & 0x3f;
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// use hexets to index into b64, and append result to encoded string
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tmp_arr[ac++] = b64a[h1] + b64a[h2] + b64a[h3] + b64a[h4];
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} while (i < data.length);
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enc = tmp_arr.join('');
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r = data.length % 3;
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return (r ? enc.slice(0, r - 3) : enc) + '==='.slice(r || 3);
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// end of base64 encoder MIT, GPL
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};
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}
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if (typeof atob === 'undefined') {
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window.atob = function (data) {
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// http://kevin.vanzonneveld.net
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// + original by: Tyler Akins (http://rumkin.com)
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// + improved by: Thunder.m
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// + input by: Aman Gupta
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// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
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// + bugfixed by: Onno Marsman
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// + bugfixed by: Pellentesque Malesuada
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// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
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// + input by: Brett Zamir (http://brett-zamir.me)
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// + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
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// * example 1: base64_decode('S2V2aW4gdmFuIFpvbm5ldmVsZA==');
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// * returns 1: 'Kevin van Zonneveld'
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// mozilla has this native
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// - but breaks in 2.0.0.12!
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//if (typeof this.window['atob'] == 'function') {
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// return atob(data);
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//}
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var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
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o1,
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o2,
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o3,
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h1,
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h2,
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h3,
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h4,
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bits,
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i = 0,
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ac = 0,
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dec = "",
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tmp_arr = [];
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if (!data) {
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return data;
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}
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data += '';
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do { // unpack four hexets into three octets using index points in b64
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h1 = b64.indexOf(data.charAt(i++));
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h2 = b64.indexOf(data.charAt(i++));
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h3 = b64.indexOf(data.charAt(i++));
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h4 = b64.indexOf(data.charAt(i++));
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bits = h1 << 18 | h2 << 12 | h3 << 6 | h4;
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o1 = bits >> 16 & 0xff;
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o2 = bits >> 8 & 0xff;
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o3 = bits & 0xff;
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if (h3 === 64) {
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tmp_arr[ac++] = String.fromCharCode(o1);
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} else if (h4 === 64) {
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tmp_arr[ac++] = String.fromCharCode(o1, o2);
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} else {
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tmp_arr[ac++] = String.fromCharCode(o1, o2, o3);
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}
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} while (i < data.length);
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dec = tmp_arr.join('');
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return dec;
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};
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}
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var getObjectLength = typeof Object.keys === 'function' ?
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function (object) {
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return Object.keys(object).length;
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} :
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function (object) {
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var i = 0, e;
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for (e in object) {
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if (object.hasOwnProperty(e)) {
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i++;
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}
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}
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return i;
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},
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/**
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PubSub implementation
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@class
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@name PubSub
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*/
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PubSub = function (context) {
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/** @preserve
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-----------------------------------------------------------------------------------------------
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JavaScript PubSub library
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2012 (c) ddotsenko@willowsystems.com
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based on Peter Higgins (dante@dojotoolkit.org)
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Loosely based on Dojo publish/subscribe API, limited in scope. Rewritten blindly.
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Original is (c) Dojo Foundation 2004-2010. Released under either AFL or new BSD, see:
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http://dojofoundation.org/license for more information.
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-----------------------------------------------------------------------------------------------
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*/
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/**
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@private
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@fieldOf PubSub
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*/
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this.topics = {};
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/**
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Stores what will be `this` within the callback functions.
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@private
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@fieldOf PubSub#
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*/
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this.context = context;
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/**
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Allows caller to emit an event and pass arguments to event listeners.
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@public
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@function
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@param topic {String} Name of the channel on which to voice this event
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@param args Any number of arguments you want to pass to the listeners of this event.
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@methodOf PubSub#
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@name publish
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*/
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this.publish = function (topic, args) {
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if (this.topics[topic]) {
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var currentTopic = this.topics[topic],
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toremove = [],
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fn,
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i,
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l,
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pair,
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emptyFunc = function () {};
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args = Array.prototype.slice.call(arguments, 1);
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for (i = 0, l = currentTopic.length; i < l; i++) {
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pair = currentTopic[i]; // this is a [function, once_flag] array
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fn = pair[0];
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if (pair[1]) { /* 'run once' flag set */
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pair[0] = emptyFunc;
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toremove.push(i);
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}
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fn.apply(this.context, args);
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}
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for (i = 0, l = toremove.length; i < l; i++) {
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currentTopic.splice(toremove[i], 1);
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}
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}
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};
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/**
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Allows listener code to subscribe to channel and be called when data is available
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@public
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@function
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@param topic {String} Name of the channel on which to voice this event
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@param callback {Function} Executable (function pointer) that will be ran when event is voiced on this channel.
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@param once {Boolean} (optional. False by default) Flag indicating if the function is to be triggered only once.
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@returns {Object} A token object that cen be used for unsubscribing.
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@methodOf PubSub#
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@name subscribe
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*/
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this.subscribe = function (topic, callback, once) {
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if (!this.topics[topic]) {
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this.topics[topic] = [[callback, once]];
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} else {
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this.topics[topic].push([callback, once]);
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}
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return {
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"topic": topic,
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"callback": callback
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};
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};
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/**
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Allows listener code to unsubscribe from a channel
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@public
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@function
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@param token {Object} A token object that was returned by `subscribe` method
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@methodOf PubSub#
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@name unsubscribe
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*/
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this.unsubscribe = function (token) {
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if (this.topics[token.topic]) {
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var currentTopic = this.topics[token.topic], i, l;
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for (i = 0, l = currentTopic.length; i < l; i++) {
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if (currentTopic[i][0] === token.callback) {
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currentTopic.splice(i, 1);
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}
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}
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}
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};
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};
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/**
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@constructor
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@private
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*/
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function jsPDF(orientation, unit, format, compressPdf) { /** String orientation, String unit, String format, Boolean compressed */
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// Default parameter values
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if (typeof orientation === 'undefined') {
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orientation = 'p';
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} else {
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orientation = orientation.toString().toLowerCase();
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}
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if (typeof unit === 'undefined') { unit = 'mm'; }
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if (typeof format === 'undefined') { format = 'a4'; }
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if (typeof compressPdf === 'undefined' && typeof zpipe === 'undefined') { compressPdf = false; }
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var format_as_string = format.toString().toLowerCase(),
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version = '0.9.0rc2',
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content = [],
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content_length = 0,
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compress = compressPdf,
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pdfVersion = '1.3', // PDF Version
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pageFormats = { // Size in pt of various paper formats
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'a3': [841.89, 1190.55],
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'a4': [595.28, 841.89],
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'a5': [420.94, 595.28],
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'letter': [612, 792],
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'legal': [612, 1008]
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},
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textColor = '0 g',
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drawColor = '0 G',
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page = 0,
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pages = [],
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objectNumber = 2, // 'n' Current object number
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outToPages = false, // switches where out() prints. outToPages true = push to pages obj. outToPages false = doc builder content
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offsets = [], // List of offsets. Activated and reset by buildDocument(). Pupulated by various calls buildDocument makes.
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fonts = {}, // collection of font objects, where key is fontKey - a dynamically created label for a given font.
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fontmap = {}, // mapping structure fontName > fontStyle > font key - performance layer. See addFont()
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activeFontSize = 16,
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activeFontKey, // will be string representing the KEY of the font as combination of fontName + fontStyle
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lineWidth = 0.200025, // 2mm
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pageHeight,
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pageWidth,
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k, // Scale factor
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documentProperties = {'title': '', 'subject': '', 'author': '', 'keywords': '', 'creator': ''},
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lineCapID = 0,
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lineJoinID = 0,
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API = {},
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events = new PubSub(API),
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tmp,
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plugin,
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/////////////////////
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// Private functions
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/////////////////////
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// simplified (speedier) replacement for sprintf's %.2f conversion
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f2 = function (number) {
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return number.toFixed(2);
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},
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// simplified (speedier) replacement for sprintf's %.3f conversion
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f3 = function (number) {
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return number.toFixed(3);
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},
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// simplified (speedier) replacement for sprintf's %02d
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padd2 = function (number) {
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var n = (number).toFixed(0);
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if (number < 10) {
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return '0' + n;
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} else {
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return n;
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}
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},
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// simplified (speedier) replacement for sprintf's %02d
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padd10 = function (number) {
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var n = (number).toFixed(0);
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if (n.length < 10) {
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return new Array( 11 - n.length ).join('0') + n;
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} else {
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return n;
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}
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},
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out = function (string) {
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if (outToPages) { /* set by beginPage */
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pages[page].push(string);
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} else {
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content.push(string);
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content_length += string.length + 1; // +1 is for '\n' that will be used to join contents of content
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}
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},
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newObject = function () {
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// Begin a new object
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objectNumber++;
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offsets[objectNumber] = content_length;
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out(objectNumber + ' 0 obj');
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return objectNumber;
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},
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putStream = function (str) {
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out('stream');
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out(str);
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out('endstream');
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},
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wPt,
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hPt,
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kids,
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i,
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putPages = function () {
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wPt = pageWidth * k;
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hPt = pageHeight * k;
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// outToPages = false as set in endDocument(). out() writes to content.
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var n, p, arr, uint, i, deflater, adler32;
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for (n = 1; n <= page; n++) {
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newObject();
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out('<</Type /Page');
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out('/Parent 1 0 R');
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out('/Resources 2 0 R');
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out('/Contents ' + (objectNumber + 1) + ' 0 R>>');
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out('endobj');
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// Page content
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p = pages[n].join('\n');
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newObject();
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if (compress) {
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arr = [];
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for (i = 0; i < p.length; ++i) {
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arr[i] = p.charCodeAt(i);
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}
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adler32 = adler32cs.from(p);
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deflater = new Deflater(6);
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deflater.append(new Uint8Array(arr));
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p = deflater.flush();
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arr = [new Uint8Array([120, 156]), new Uint8Array(p),
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new Uint8Array([adler32 & 0xFF, (adler32 >> 8) & 0xFF, (adler32 >> 16) & 0xFF, (adler32 >> 24) & 0xFF])];
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p = '';
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for (i in arr) {
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if (arr.hasOwnProperty(i)) {
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p += String.fromCharCode.apply(null, arr[i]);
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}
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}
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out('<</Length ' + p.length + ' /Filter [/FlateDecode]>>');
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} else {
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out('<</Length ' + p.length + '>>');
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}
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putStream(p);
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out('endobj');
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}
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offsets[1] = content_length;
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out('1 0 obj');
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out('<</Type /Pages');
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kids = '/Kids [';
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for (i = 0; i < page; i++) {
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kids += (3 + 2 * i) + ' 0 R ';
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}
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out(kids + ']');
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out('/Count ' + page);
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out('/MediaBox [0 0 ' + f2(wPt) + ' ' + f2(hPt) + ']');
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out('>>');
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out('endobj');
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},
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putFont = function (font) {
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font.objectNumber = newObject();
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out('<</BaseFont/' + font.PostScriptName + '/Type/Font');
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if (typeof font.encoding === 'string') {
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out('/Encoding/' + font.encoding);
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}
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out('/Subtype/Type1>>');
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out('endobj');
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},
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putFonts = function () {
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var fontKey;
|
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for (fontKey in fonts) {
|
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if (fonts.hasOwnProperty(fontKey)) {
|
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putFont(fonts[fontKey]);
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}
|
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}
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},
|
|
putXobjectDict = function () {
|
|
// Loop through images, or other data objects
|
|
events.publish('putXobjectDict');
|
|
},
|
|
putResourceDictionary = function () {
|
|
out('/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]');
|
|
out('/Font <<');
|
|
// Do this for each font, the '1' bit is the index of the font
|
|
var fontKey;
|
|
for (fontKey in fonts) {
|
|
if (fonts.hasOwnProperty(fontKey)) {
|
|
out('/' + fontKey + ' ' + fonts[fontKey].objectNumber + ' 0 R');
|
|
}
|
|
}
|
|
out('>>');
|
|
out('/XObject <<');
|
|
putXobjectDict();
|
|
out('>>');
|
|
},
|
|
putResources = function () {
|
|
putFonts();
|
|
events.publish('putResources');
|
|
// Resource dictionary
|
|
offsets[2] = content_length;
|
|
out('2 0 obj');
|
|
out('<<');
|
|
putResourceDictionary();
|
|
out('>>');
|
|
out('endobj');
|
|
events.publish('postPutResources');
|
|
},
|
|
addToFontDictionary = function (fontKey, fontName, fontStyle) {
|
|
// this is mapping structure for quick font key lookup.
|
|
// returns the KEY of the font (ex: "F1") for a given pair of font name and type (ex: "Arial". "Italic")
|
|
var undef;
|
|
if (fontmap[fontName] === undef) {
|
|
fontmap[fontName] = {}; // fontStyle is a var interpreted and converted to appropriate string. don't wrap in quotes.
|
|
}
|
|
fontmap[fontName][fontStyle] = fontKey;
|
|
},
|
|
/**
|
|
FontObject describes a particular font as member of an instnace of jsPDF
|
|
|
|
It's a collection of properties like 'id' (to be used in PDF stream),
|
|
'fontName' (font's family name), 'fontStyle' (font's style variant label)
|
|
|
|
@class
|
|
@public
|
|
@property id {String} PDF-document-instance-specific label assinged to the font.
|
|
@property PostScriptName {String} PDF specification full name for the font
|
|
@property encoding {Object} Encoding_name-to-Font_metrics_object mapping.
|
|
@name FontObject
|
|
*/
|
|
FontObject = {},
|
|
addFont = function (PostScriptName, fontName, fontStyle, encoding) {
|
|
var fontKey = 'F' + (getObjectLength(fonts) + 1).toString(10),
|
|
// This is FontObject
|
|
font = fonts[fontKey] = {
|
|
'id': fontKey,
|
|
// , 'objectNumber': will be set by putFont()
|
|
'PostScriptName': PostScriptName,
|
|
'fontName': fontName,
|
|
'fontStyle': fontStyle,
|
|
'encoding': encoding,
|
|
'metadata': {}
|
|
};
|
|
|
|
addToFontDictionary(fontKey, fontName, fontStyle);
|
|
|
|
events.publish('addFont', font);
|
|
|
|
return fontKey;
|
|
},
|
|
addFonts = function () {
|
|
|
|
var HELVETICA = "helvetica",
|
|
TIMES = "times",
|
|
COURIER = "courier",
|
|
NORMAL = "normal",
|
|
BOLD = "bold",
|
|
ITALIC = "italic",
|
|
BOLD_ITALIC = "bolditalic",
|
|
encoding = 'StandardEncoding',
|
|
standardFonts = [
|
|
['Helvetica', HELVETICA, NORMAL],
|
|
['Helvetica-Bold', HELVETICA, BOLD],
|
|
['Helvetica-Oblique', HELVETICA, ITALIC],
|
|
['Helvetica-BoldOblique', HELVETICA, BOLD_ITALIC],
|
|
['Courier', COURIER, NORMAL],
|
|
['Courier-Bold', COURIER, BOLD],
|
|
['Courier-Oblique', COURIER, ITALIC],
|
|
['Courier-BoldOblique', COURIER, BOLD_ITALIC],
|
|
['Times-Roman', TIMES, NORMAL],
|
|
['Times-Bold', TIMES, BOLD],
|
|
['Times-Italic', TIMES, ITALIC],
|
|
['Times-BoldItalic', TIMES, BOLD_ITALIC]
|
|
],
|
|
i,
|
|
l,
|
|
fontKey,
|
|
parts;
|
|
for (i = 0, l = standardFonts.length; i < l; i++) {
|
|
fontKey = addFont(
|
|
standardFonts[i][0],
|
|
standardFonts[i][1],
|
|
standardFonts[i][2],
|
|
encoding
|
|
);
|
|
|
|
// adding aliases for standard fonts, this time matching the capitalization
|
|
parts = standardFonts[i][0].split('-');
|
|
addToFontDictionary(fontKey, parts[0], parts[1] || '');
|
|
}
|
|
|
|
events.publish('addFonts', {'fonts': fonts, 'dictionary': fontmap});
|
|
},
|
|
/**
|
|
|
|
@public
|
|
@function
|
|
@param text {String}
|
|
@param flags {Object} Encoding flags.
|
|
@returns {String} Encoded string
|
|
*/
|
|
to8bitStream = function (text, flags) {
|
|
/* PDF 1.3 spec:
|
|
"For text strings encoded in Unicode, the first two bytes must be 254 followed by
|
|
255, representing the Unicode byte order marker, U+FEFF. (This sequence conflicts
|
|
with the PDFDocEncoding character sequence thorn ydieresis, which is unlikely
|
|
to be a meaningful beginning of a word or phrase.) The remainder of the
|
|
string consists of Unicode character codes, according to the UTF-16 encoding
|
|
specified in the Unicode standard, version 2.0. Commonly used Unicode values
|
|
are represented as 2 bytes per character, with the high-order byte appearing first
|
|
in the string."
|
|
|
|
In other words, if there are chars in a string with char code above 255, we
|
|
recode the string to UCS2 BE - string doubles in length and BOM is prepended.
|
|
|
|
HOWEVER!
|
|
Actual *content* (body) text (as opposed to strings used in document properties etc)
|
|
does NOT expect BOM. There, it is treated as a literal GID (Glyph ID)
|
|
|
|
Because of Adobe's focus on "you subset your fonts!" you are not supposed to have
|
|
a font that maps directly Unicode (UCS2 / UTF16BE) code to font GID, but you could
|
|
fudge it with "Identity-H" encoding and custom CIDtoGID map that mimics Unicode
|
|
code page. There, however, all characters in the stream are treated as GIDs,
|
|
including BOM, which is the reason we need to skip BOM in content text (i.e. that
|
|
that is tied to a font).
|
|
|
|
To signal this "special" PDFEscape / to8bitStream handling mode,
|
|
API.text() function sets (unless you overwrite it with manual values
|
|
given to API.text(.., flags) )
|
|
flags.autoencode = true
|
|
flags.noBOM = true
|
|
|
|
*/
|
|
|
|
/*
|
|
`flags` properties relied upon:
|
|
.sourceEncoding = string with encoding label.
|
|
"Unicode" by default. = encoding of the incoming text.
|
|
pass some non-existing encoding name
|
|
(ex: 'Do not touch my strings! I know what I am doing.')
|
|
to make encoding code skip the encoding step.
|
|
.outputEncoding = Either valid PDF encoding name
|
|
(must be supported by jsPDF font metrics, otherwise no encoding)
|
|
or a JS object, where key = sourceCharCode, value = outputCharCode
|
|
missing keys will be treated as: sourceCharCode === outputCharCode
|
|
.noBOM
|
|
See comment higher above for explanation for why this is important
|
|
.autoencode
|
|
See comment higher above for explanation for why this is important
|
|
*/
|
|
|
|
var i, l, undef, sourceEncoding, encodingBlock, outputEncoding, newtext, isUnicode, ch, bch;
|
|
|
|
if (flags === undef) {
|
|
flags = {};
|
|
}
|
|
|
|
sourceEncoding = flags.sourceEncoding ? sourceEncoding : 'Unicode';
|
|
|
|
outputEncoding = flags.outputEncoding;
|
|
|
|
// This 'encoding' section relies on font metrics format
|
|
// attached to font objects by, among others,
|
|
// "Willow Systems' standard_font_metrics plugin"
|
|
// see jspdf.plugin.standard_font_metrics.js for format
|
|
// of the font.metadata.encoding Object.
|
|
// It should be something like
|
|
// .encoding = {'codePages':['WinANSI....'], 'WinANSI...':{code:code, ...}}
|
|
// .widths = {0:width, code:width, ..., 'fof':divisor}
|
|
// .kerning = {code:{previous_char_code:shift, ..., 'fof':-divisor},...}
|
|
if ((flags.autoencode || outputEncoding) &&
|
|
fonts[activeFontKey].metadata &&
|
|
fonts[activeFontKey].metadata[sourceEncoding] &&
|
|
fonts[activeFontKey].metadata[sourceEncoding].encoding
|
|
) {
|
|
encodingBlock = fonts[activeFontKey].metadata[sourceEncoding].encoding;
|
|
|
|
// each font has default encoding. Some have it clearly defined.
|
|
if (!outputEncoding && fonts[activeFontKey].encoding) {
|
|
outputEncoding = fonts[activeFontKey].encoding;
|
|
}
|
|
|
|
// Hmmm, the above did not work? Let's try again, in different place.
|
|
if (!outputEncoding && encodingBlock.codePages) {
|
|
outputEncoding = encodingBlock.codePages[0]; // let's say, first one is the default
|
|
}
|
|
|
|
if (typeof outputEncoding === 'string') {
|
|
outputEncoding = encodingBlock[outputEncoding];
|
|
}
|
|
// we want output encoding to be a JS Object, where
|
|
// key = sourceEncoding's character code and
|
|
// value = outputEncoding's character code.
|
|
if (outputEncoding) {
|
|
isUnicode = false;
|
|
newtext = [];
|
|
for (i = 0, l = text.length; i < l; i++) {
|
|
ch = outputEncoding[text.charCodeAt(i)];
|
|
if (ch) {
|
|
newtext.push(
|
|
String.fromCharCode(ch)
|
|
);
|
|
} else {
|
|
newtext.push(
|
|
text[i]
|
|
);
|
|
}
|
|
|
|
// since we are looping over chars anyway, might as well
|
|
// check for residual unicodeness
|
|
if (newtext[i].charCodeAt(0) >> 8) { /* more than 255 */
|
|
isUnicode = true;
|
|
}
|
|
}
|
|
text = newtext.join('');
|
|
}
|
|
}
|
|
|
|
i = text.length;
|
|
// isUnicode may be set to false above. Hence the triple-equal to undefined
|
|
while (isUnicode === undef && i !== 0) {
|
|
if (text.charCodeAt(i - 1) >> 8) { /* more than 255 */
|
|
isUnicode = true;
|
|
}
|
|
i--;
|
|
}
|
|
if (!isUnicode) {
|
|
return text;
|
|
} else {
|
|
newtext = flags.noBOM ? [] : [254, 255];
|
|
for (i = 0, l = text.length; i < l; i++) {
|
|
ch = text.charCodeAt(i);
|
|
bch = ch >> 8; // divide by 256
|
|
if (bch >> 8) { /* something left after dividing by 256 second time */
|
|
throw new Error("Character at position " + i.toString(10) + " of string '" + text + "' exceeds 16bits. Cannot be encoded into UCS-2 BE");
|
|
}
|
|
newtext.push(bch);
|
|
newtext.push(ch - (bch << 8));
|
|
}
|
|
return String.fromCharCode.apply(undef, newtext);
|
|
}
|
|
},
|
|
// Replace '/', '(', and ')' with pdf-safe versions
|
|
pdfEscape = function (text, flags) {
|
|
// doing to8bitStream does NOT make this PDF display unicode text. For that
|
|
// we also need to reference a unicode font and embed it - royal pain in the rear.
|
|
|
|
// There is still a benefit to to8bitStream - PDF simply cannot handle 16bit chars,
|
|
// which JavaScript Strings are happy to provide. So, while we still cannot display
|
|
// 2-byte characters property, at least CONDITIONALLY converting (entire string containing)
|
|
// 16bit chars to (USC-2-BE) 2-bytes per char + BOM streams we ensure that entire PDF
|
|
// is still parseable.
|
|
// This will allow immediate support for unicode in document properties strings.
|
|
return to8bitStream(text, flags).replace(/\\/g, '\\\\').replace(/\(/g, '\\(').replace(/\)/g, '\\)');
|
|
},
|
|
putInfo = function () {
|
|
out('/Producer (jsPDF ' + version + ')');
|
|
if (documentProperties.title) {
|
|
out('/Title (' + pdfEscape(documentProperties.title) + ')');
|
|
}
|
|
if (documentProperties.subject) {
|
|
out('/Subject (' + pdfEscape(documentProperties.subject) + ')');
|
|
}
|
|
if (documentProperties.author) {
|
|
out('/Author (' + pdfEscape(documentProperties.author) + ')');
|
|
}
|
|
if (documentProperties.keywords) {
|
|
out('/Keywords (' + pdfEscape(documentProperties.keywords) + ')');
|
|
}
|
|
if (documentProperties.creator) {
|
|
out('/Creator (' + pdfEscape(documentProperties.creator) + ')');
|
|
}
|
|
var created = new Date();
|
|
out('/CreationDate (D:' +
|
|
[
|
|
created.getFullYear(),
|
|
padd2(created.getMonth() + 1),
|
|
padd2(created.getDate()),
|
|
padd2(created.getHours()),
|
|
padd2(created.getMinutes()),
|
|
padd2(created.getSeconds())
|
|
].join('') +
|
|
')'
|
|
);
|
|
},
|
|
putCatalog = function () {
|
|
out('/Type /Catalog');
|
|
out('/Pages 1 0 R');
|
|
// @TODO: Add zoom and layout modes
|
|
out('/OpenAction [3 0 R /FitH null]');
|
|
out('/PageLayout /OneColumn');
|
|
events.publish('putCatalog');
|
|
},
|
|
putTrailer = function () {
|
|
out('/Size ' + (objectNumber + 1));
|
|
out('/Root ' + objectNumber + ' 0 R');
|
|
out('/Info ' + (objectNumber - 1) + ' 0 R');
|
|
},
|
|
beginPage = function () {
|
|
page++;
|
|
// Do dimension stuff
|
|
outToPages = true;
|
|
pages[page] = [];
|
|
},
|
|
_addPage = function () {
|
|
beginPage();
|
|
// Set line width
|
|
out(f2(lineWidth * k) + ' w');
|
|
// Set draw color
|
|
out(drawColor);
|
|
// resurrecting non-default line caps, joins
|
|
if (lineCapID !== 0) {
|
|
out(lineCapID.toString(10) + ' J');
|
|
}
|
|
if (lineJoinID !== 0) {
|
|
out(lineJoinID.toString(10) + ' j');
|
|
}
|
|
events.publish('addPage', {'pageNumber': page});
|
|
},
|
|
/**
|
|
Returns a document-specific font key - a label assigned to a
|
|
font name + font type combination at the time the font was added
|
|
to the font inventory.
|
|
|
|
Font key is used as label for the desired font for a block of text
|
|
to be added to the PDF document stream.
|
|
@private
|
|
@function
|
|
@param fontName {String} can be undefined on "falthy" to indicate "use current"
|
|
@param fontStyle {String} can be undefined on "falthy" to indicate "use current"
|
|
@returns {String} Font key.
|
|
*/
|
|
getFont = function (fontName, fontStyle) {
|
|
var key, undef;
|
|
|
|
if (fontName === undef) {
|
|
fontName = fonts[activeFontKey].fontName;
|
|
}
|
|
if (fontStyle === undef) {
|
|
fontStyle = fonts[activeFontKey].fontStyle;
|
|
}
|
|
|
|
try {
|
|
key = fontmap[fontName][fontStyle]; // returns a string like 'F3' - the KEY corresponding tot he font + type combination.
|
|
} catch (e) {
|
|
key = undef;
|
|
}
|
|
if (!key) {
|
|
throw new Error("Unable to look up font label for font '" + fontName + "', '" + fontStyle + "'. Refer to getFontList() for available fonts.");
|
|
}
|
|
|
|
return key;
|
|
},
|
|
buildDocument = function () {
|
|
|
|
outToPages = false; // switches out() to content
|
|
content = [];
|
|
offsets = [];
|
|
|
|
// putHeader()
|
|
out('%PDF-' + pdfVersion);
|
|
|
|
putPages();
|
|
|
|
putResources();
|
|
|
|
// Info
|
|
newObject();
|
|
out('<<');
|
|
putInfo();
|
|
out('>>');
|
|
out('endobj');
|
|
|
|
// Catalog
|
|
newObject();
|
|
out('<<');
|
|
putCatalog();
|
|
out('>>');
|
|
out('endobj');
|
|
|
|
// Cross-ref
|
|
var o = content_length, i;
|
|
out('xref');
|
|
out('0 ' + (objectNumber + 1));
|
|
out('0000000000 65535 f ');
|
|
for (i = 1; i <= objectNumber; i++) {
|
|
out(padd10(offsets[i]) + ' 00000 n ');
|
|
}
|
|
// Trailer
|
|
out('trailer');
|
|
out('<<');
|
|
putTrailer();
|
|
out('>>');
|
|
out('startxref');
|
|
out(o);
|
|
out('%%EOF');
|
|
|
|
outToPages = true;
|
|
|
|
return content.join('\n');
|
|
},
|
|
getStyle = function (style) {
|
|
// see Path-Painting Operators of PDF spec
|
|
var op = 'S'; // stroke
|
|
if (style === 'F') {
|
|
op = 'f'; // fill
|
|
} else if (style === 'FD' || style === 'DF') {
|
|
op = 'B'; // both
|
|
}
|
|
return op;
|
|
},
|
|
|
|
/**
|
|
Generates the PDF document.
|
|
Possible values:
|
|
datauristring (alias dataurlstring) - Data-Url-formatted data returned as string.
|
|
datauri (alias datauri) - Data-Url-formatted data pushed into current window's location (effectively reloading the window with contents of the PDF).
|
|
|
|
If `type` argument is undefined, output is raw body of resulting PDF returned as a string.
|
|
|
|
@param {String} type A string identifying one of the possible output types.
|
|
@param {Object} options An object providing some additional signalling to PDF generator.
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name output
|
|
*/
|
|
output = function (type, options) {
|
|
var undef, data, length, array, i, blob;
|
|
switch (type) {
|
|
case undef:
|
|
return buildDocument();
|
|
case 'save':
|
|
if (navigator.getUserMedia) {
|
|
if (window.URL === undefined) {
|
|
return API.output('dataurlnewwindow');
|
|
} else if (window.URL.createObjectURL === undefined) {
|
|
return API.output('dataurlnewwindow');
|
|
}
|
|
}
|
|
data = buildDocument();
|
|
|
|
// Need to add the file to BlobBuilder as a Uint8Array
|
|
length = data.length;
|
|
array = new Uint8Array(new ArrayBuffer(length));
|
|
|
|
for (i = 0; i < length; i++) {
|
|
array[i] = data.charCodeAt(i);
|
|
}
|
|
|
|
blob = new Blob([array], {type: "application/pdf"});
|
|
|
|
saveAs(blob, options);
|
|
break;
|
|
case 'datauristring':
|
|
case 'dataurlstring':
|
|
return 'data:application/pdf;base64,' + btoa(buildDocument());
|
|
case 'datauri':
|
|
case 'dataurl':
|
|
document.location.href = 'data:application/pdf;base64,' + btoa(buildDocument());
|
|
break;
|
|
case 'dataurlnewwindow':
|
|
window.open('data:application/pdf;base64,' + btoa(buildDocument()));
|
|
break;
|
|
default:
|
|
throw new Error('Output type "' + type + '" is not supported.');
|
|
}
|
|
// @TODO: Add different output options
|
|
};
|
|
|
|
switch (unit) {
|
|
case 'pt': k = 1; break;
|
|
case 'mm': k = 72 / 25.4; break;
|
|
case 'cm': k = 72 / 2.54; break;
|
|
case 'in': k = 72; break;
|
|
case 'px': k = 96 / 72; break;
|
|
case 'pc': k = 12; break;
|
|
case 'em': k = 12; break;
|
|
case 'ex': k = 6; break;
|
|
default:
|
|
throw ('Invalid unit: ' + unit);
|
|
}
|
|
|
|
// Dimensions are stored as user units and converted to points on output
|
|
if (pageFormats.hasOwnProperty(format_as_string)) {
|
|
pageHeight = pageFormats[format_as_string][1] / k;
|
|
pageWidth = pageFormats[format_as_string][0] / k;
|
|
} else {
|
|
try {
|
|
pageHeight = format[1];
|
|
pageWidth = format[0];
|
|
} catch (err) {
|
|
throw ('Invalid format: ' + format);
|
|
}
|
|
}
|
|
|
|
if (orientation === 'p' || orientation === 'portrait') {
|
|
orientation = 'p';
|
|
if (pageWidth > pageHeight) {
|
|
tmp = pageWidth;
|
|
pageWidth = pageHeight;
|
|
pageHeight = tmp;
|
|
}
|
|
} else if (orientation === 'l' || orientation === 'landscape') {
|
|
orientation = 'l';
|
|
if (pageHeight > pageWidth) {
|
|
tmp = pageWidth;
|
|
pageWidth = pageHeight;
|
|
pageHeight = tmp;
|
|
}
|
|
} else {
|
|
throw ('Invalid orientation: ' + orientation);
|
|
}
|
|
|
|
|
|
|
|
//---------------------------------------
|
|
// Public API
|
|
|
|
/*
|
|
Object exposing internal API to plugins
|
|
@public
|
|
*/
|
|
API.internal = {
|
|
'pdfEscape': pdfEscape,
|
|
'getStyle': getStyle,
|
|
/**
|
|
Returns {FontObject} describing a particular font.
|
|
@public
|
|
@function
|
|
@param fontName {String} (Optional) Font's family name
|
|
@param fontStyle {String} (Optional) Font's style variation name (Example:"Italic")
|
|
@returns {FontObject}
|
|
*/
|
|
'getFont': function () { return fonts[getFont.apply(API, arguments)]; },
|
|
'getFontSize': function () { return activeFontSize; },
|
|
'btoa': btoa,
|
|
'write': function (string1, string2, string3, etc) {
|
|
out(
|
|
arguments.length === 1 ? string1 : Array.prototype.join.call(arguments, ' ')
|
|
);
|
|
},
|
|
'getCoordinateString': function (value) {
|
|
return f2(value * k);
|
|
},
|
|
'getVerticalCoordinateString': function (value) {
|
|
return f2((pageHeight - value) * k);
|
|
},
|
|
'collections': {},
|
|
'newObject': newObject,
|
|
'putStream': putStream,
|
|
'events': events,
|
|
// ratio that you use in multiplication of a given "size" number to arrive to 'point'
|
|
// units of measurement.
|
|
// scaleFactor is set at initialization of the document and calculated against the stated
|
|
// default measurement units for the document.
|
|
// If default is "mm", k is the number that will turn number in 'mm' into 'points' number.
|
|
// through multiplication.
|
|
'scaleFactor': k,
|
|
'pageSize': {'width': pageWidth, 'height': pageHeight},
|
|
'output': function (type, options) {
|
|
return output(type, options);
|
|
}
|
|
};
|
|
|
|
/**
|
|
Adds (and transfers the focus to) new page to the PDF document.
|
|
@function
|
|
@returns {jsPDF}
|
|
|
|
@methodOf jsPDF#
|
|
@name addPage
|
|
*/
|
|
API.addPage = function () {
|
|
_addPage();
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Adds text to page. Supports adding multiline text when 'text' argument is an Array of Strings.
|
|
@function
|
|
@param {String|Array} text String or array of strings to be added to the page. Each line is shifted one line down per font, spacing settings declared before this call.
|
|
@param {Number} x Coordinate (in units declared at inception of PDF document) against left edge of the page
|
|
@param {Number} y Coordinate (in units declared at inception of PDF document) against upper edge of the page
|
|
@param {Object} flags Collection of settings signalling how the text must be encoded. Defaults are sane. If you think you want to pass some flags, you likely can read the source.
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name text
|
|
*/
|
|
API.text = function (text, x, y, flags) {
|
|
/**
|
|
* Inserts something like this into PDF
|
|
BT
|
|
/F1 16 Tf % Font name + size
|
|
16 TL % How many units down for next line in multiline text
|
|
0 g % color
|
|
28.35 813.54 Td % position
|
|
(line one) Tj
|
|
T* (line two) Tj
|
|
T* (line three) Tj
|
|
ET
|
|
*/
|
|
|
|
var undef, _first, _second, _third, newtext, str, i;
|
|
// Pre-August-2012 the order of arguments was function(x, y, text, flags)
|
|
// in effort to make all calls have similar signature like
|
|
// function(data, coordinates... , miscellaneous)
|
|
// this method had its args flipped.
|
|
// code below allows backward compatibility with old arg order.
|
|
if (typeof text === 'number') {
|
|
_first = y;
|
|
_second = text;
|
|
_third = x;
|
|
|
|
text = _first;
|
|
x = _second;
|
|
y = _third;
|
|
}
|
|
|
|
// If there are any newlines in text, we assume
|
|
// the user wanted to print multiple lines, so break the
|
|
// text up into an array. If the text is already an array,
|
|
// we assume the user knows what they are doing.
|
|
if (typeof text === 'string' && text.match(/[\n\r]/)) {
|
|
text = text.split(/\r\n|\r|\n/g);
|
|
}
|
|
|
|
if (typeof flags === 'undefined') {
|
|
flags = {'noBOM': true, 'autoencode': true};
|
|
} else {
|
|
|
|
if (flags.noBOM === undef) {
|
|
flags.noBOM = true;
|
|
}
|
|
|
|
if (flags.autoencode === undef) {
|
|
flags.autoencode = true;
|
|
}
|
|
|
|
}
|
|
|
|
if (typeof text === 'string') {
|
|
str = pdfEscape(text, flags);
|
|
} else if (text instanceof Array) { /* Array */
|
|
// we don't want to destroy original text array, so cloning it
|
|
newtext = text.concat();
|
|
// we do array.join('text that must not be PDFescaped")
|
|
// thus, pdfEscape each component separately
|
|
for (i = newtext.length - 1; i !== -1; i--) {
|
|
newtext[i] = pdfEscape(newtext[i], flags);
|
|
}
|
|
str = newtext.join(") Tj\nT* (");
|
|
} else {
|
|
throw new Error('Type of text must be string or Array. "' + text + '" is not recognized.');
|
|
}
|
|
// Using "'" ("go next line and render text" mark) would save space but would complicate our rendering code, templates
|
|
|
|
// BT .. ET does NOT have default settings for Tf. You must state that explicitely every time for BT .. ET
|
|
// if you want text transformation matrix (+ multiline) to work reliably (which reads sizes of things from font declarations)
|
|
// Thus, there is NO useful, *reliable* concept of "default" font for a page.
|
|
// The fact that "default" (reuse font used before) font worked before in basic cases is an accident
|
|
// - readers dealing smartly with brokenness of jsPDF's markup.
|
|
out(
|
|
'BT\n/' +
|
|
activeFontKey + ' ' + activeFontSize + ' Tf\n' + // font face, style, size
|
|
activeFontSize + ' TL\n' + // line spacing
|
|
textColor +
|
|
'\n' + f2(x * k) + ' ' + f2((pageHeight - y) * k) + ' Td\n(' +
|
|
str +
|
|
') Tj\nET'
|
|
);
|
|
return this;
|
|
};
|
|
|
|
API.line = function (x1, y1, x2, y2) {
|
|
out(
|
|
f2(x1 * k) + ' ' + f2((pageHeight - y1) * k) + ' m ' +
|
|
f2(x2 * k) + ' ' + f2((pageHeight - y2) * k) + ' l S'
|
|
);
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Adds series of curves (straight lines or cubic bezier curves) to canvas, starting at `x`, `y` coordinates.
|
|
All data points in `lines` are relative to last line origin.
|
|
`x`, `y` become x1,y1 for first line / curve in the set.
|
|
For lines you only need to specify [x2, y2] - (ending point) vector against x1, y1 starting point.
|
|
For bezier curves you need to specify [x2,y2,x3,y3,x4,y4] - vectors to control points 1, 2, ending point. All vectors are against the start of the curve - x1,y1.
|
|
|
|
@example .lines([[2,2],[-2,2],[1,1,2,2,3,3],[2,1]], 212,110, 10) // line, line, bezier curve, line
|
|
@param {Array} lines Array of *vector* shifts as pairs (lines) or sextets (cubic bezier curves).
|
|
@param {Number} x Coordinate (in units declared at inception of PDF document) against left edge of the page
|
|
@param {Number} y Coordinate (in units declared at inception of PDF document) against upper edge of the page
|
|
@param {Number} scale (Defaults to [1.0,1.0]) x,y Scaling factor for all vectors. Elements can be any floating number Sub-one makes drawing smaller. Over-one grows the drawing. Negative flips the direction.
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name lines
|
|
*/
|
|
API.lines = function (lines, x, y, scale, style) {
|
|
var undef, _first, _second, _third, scalex, scaley, i, l, leg, x2, y2, x3, y3, x4, y4;
|
|
|
|
// Pre-August-2012 the order of arguments was function(x, y, lines, scale, style)
|
|
// in effort to make all calls have similar signature like
|
|
// function(content, coordinateX, coordinateY , miscellaneous)
|
|
// this method had its args flipped.
|
|
// code below allows backward compatibility with old arg order.
|
|
if (typeof lines === 'number') {
|
|
_first = y;
|
|
_second = lines;
|
|
_third = x;
|
|
|
|
lines = _first;
|
|
x = _second;
|
|
y = _third;
|
|
}
|
|
|
|
style = getStyle(style);
|
|
scale = scale === undef ? [1, 1] : scale;
|
|
|
|
// starting point
|
|
out(f3(x * k) + ' ' + f3((pageHeight - y) * k) + ' m ');
|
|
|
|
scalex = scale[0];
|
|
scaley = scale[1];
|
|
l = lines.length;
|
|
//, x2, y2 // bezier only. In page default measurement "units", *after* scaling
|
|
//, x3, y3 // bezier only. In page default measurement "units", *after* scaling
|
|
// ending point for all, lines and bezier. . In page default measurement "units", *after* scaling
|
|
x4 = x; // last / ending point = starting point for first item.
|
|
y4 = y; // last / ending point = starting point for first item.
|
|
|
|
for (i = 0; i < l; i++) {
|
|
leg = lines[i];
|
|
if (leg.length === 2) {
|
|
// simple line
|
|
x4 = leg[0] * scalex + x4; // here last x4 was prior ending point
|
|
y4 = leg[1] * scaley + y4; // here last y4 was prior ending point
|
|
out(f3(x4 * k) + ' ' + f3((pageHeight - y4) * k) + ' l');
|
|
} else {
|
|
// bezier curve
|
|
x2 = leg[0] * scalex + x4; // here last x4 is prior ending point
|
|
y2 = leg[1] * scaley + y4; // here last y4 is prior ending point
|
|
x3 = leg[2] * scalex + x4; // here last x4 is prior ending point
|
|
y3 = leg[3] * scaley + y4; // here last y4 is prior ending point
|
|
x4 = leg[4] * scalex + x4; // here last x4 was prior ending point
|
|
y4 = leg[5] * scaley + y4; // here last y4 was prior ending point
|
|
out(
|
|
f3(x2 * k) + ' ' +
|
|
f3((pageHeight - y2) * k) + ' ' +
|
|
f3(x3 * k) + ' ' +
|
|
f3((pageHeight - y3) * k) + ' ' +
|
|
f3(x4 * k) + ' ' +
|
|
f3((pageHeight - y4) * k) + ' c'
|
|
);
|
|
}
|
|
}
|
|
// stroking / filling / both the path
|
|
out(style);
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Adds a rectangle to PDF
|
|
|
|
@param {Number} x Coordinate (in units declared at inception of PDF document) against left edge of the page
|
|
@param {Number} y Coordinate (in units declared at inception of PDF document) against upper edge of the page
|
|
@param {Number} w Width (in units declared at inception of PDF document)
|
|
@param {Number} h Height (in units declared at inception of PDF document)
|
|
@param {String} style (Defaults to active fill/stroke style) A string signalling if stroke, fill or both are to be applied.
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name rect
|
|
*/
|
|
API.rect = function (x, y, w, h, style) {
|
|
var op = getStyle(style);
|
|
out([
|
|
f2(x * k),
|
|
f2((pageHeight - y) * k),
|
|
f2(w * k),
|
|
f2(-h * k),
|
|
're',
|
|
op
|
|
].join(' '));
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Adds a triangle to PDF
|
|
|
|
@param {Number} x1 Coordinate (in units declared at inception of PDF document) against left edge of the page
|
|
@param {Number} y1 Coordinate (in units declared at inception of PDF document) against upper edge of the page
|
|
@param {Number} x2 Coordinate (in units declared at inception of PDF document) against left edge of the page
|
|
@param {Number} y2 Coordinate (in units declared at inception of PDF document) against upper edge of the page
|
|
@param {Number} x3 Coordinate (in units declared at inception of PDF document) against left edge of the page
|
|
@param {Number} y3 Coordinate (in units declared at inception of PDF document) against upper edge of the page
|
|
@param {String} style (Defaults to active fill/stroke style) A string signalling if stroke, fill or both are to be applied.
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name triangle
|
|
*/
|
|
API.triangle = function (x1, y1, x2, y2, x3, y3, style) {
|
|
this.lines(
|
|
[
|
|
[ x2 - x1, y2 - y1 ], // vector to point 2
|
|
[ x3 - x2, y3 - y2 ], // vector to point 3
|
|
[ x1 - x3, y1 - y3 ] // closing vector back to point 1
|
|
],
|
|
x1,
|
|
y1, // start of path
|
|
[1, 1],
|
|
style
|
|
);
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Adds a rectangle with rounded corners to PDF
|
|
|
|
@param {Number} x Coordinate (in units declared at inception of PDF document) against left edge of the page
|
|
@param {Number} y Coordinate (in units declared at inception of PDF document) against upper edge of the page
|
|
@param {Number} w Width (in units declared at inception of PDF document)
|
|
@param {Number} h Height (in units declared at inception of PDF document)
|
|
@param {Number} rx Radius along x axis (in units declared at inception of PDF document)
|
|
@param {Number} rx Radius along y axis (in units declared at inception of PDF document)
|
|
@param {String} style (Defaults to active fill/stroke style) A string signalling if stroke, fill or both are to be applied.
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name roundedRect
|
|
*/
|
|
API.roundedRect = function (x, y, w, h, rx, ry, style) {
|
|
var MyArc = 4 / 3 * (Math.SQRT2 - 1);
|
|
this.lines(
|
|
[
|
|
[ (w - 2 * rx), 0 ],
|
|
[ (rx * MyArc), 0, rx, ry - (ry * MyArc), rx, ry ],
|
|
[ 0, (h - 2 * ry) ],
|
|
[ 0, (ry * MyArc), -(rx * MyArc), ry, -rx, ry],
|
|
[ (-w + 2 * rx), 0],
|
|
[ -(rx * MyArc), 0, -rx, -(ry * MyArc), -rx, -ry],
|
|
[ 0, (-h + 2 * ry)],
|
|
[ 0, -(ry * MyArc), (rx * MyArc), -ry, rx, -ry]
|
|
],
|
|
x + rx,
|
|
y, // start of path
|
|
[1, 1],
|
|
style
|
|
);
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Adds an ellipse to PDF
|
|
|
|
@param {Number} x Coordinate (in units declared at inception of PDF document) against left edge of the page
|
|
@param {Number} y Coordinate (in units declared at inception of PDF document) against upper edge of the page
|
|
@param {Number} rx Radius along x axis (in units declared at inception of PDF document)
|
|
@param {Number} rx Radius along y axis (in units declared at inception of PDF document)
|
|
@param {String} style (Defaults to active fill/stroke style) A string signalling if stroke, fill or both are to be applied.
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name ellipse
|
|
*/
|
|
API.ellipse = function (x, y, rx, ry, style) {
|
|
var op = getStyle(style),
|
|
lx = 4 / 3 * (Math.SQRT2 - 1) * rx,
|
|
ly = 4 / 3 * (Math.SQRT2 - 1) * ry;
|
|
|
|
out([
|
|
f2((x + rx) * k),
|
|
f2((pageHeight - y) * k),
|
|
'm',
|
|
f2((x + rx) * k),
|
|
f2((pageHeight - (y - ly)) * k),
|
|
f2((x + lx) * k),
|
|
f2((pageHeight - (y - ry)) * k),
|
|
f2(x * k),
|
|
f2((pageHeight - (y - ry)) * k),
|
|
'c'
|
|
].join(' '));
|
|
out([
|
|
f2((x - lx) * k),
|
|
f2((pageHeight - (y - ry)) * k),
|
|
f2((x - rx) * k),
|
|
f2((pageHeight - (y - ly)) * k),
|
|
f2((x - rx) * k),
|
|
f2((pageHeight - y) * k),
|
|
'c'
|
|
].join(' '));
|
|
out([
|
|
f2((x - rx) * k),
|
|
f2((pageHeight - (y + ly)) * k),
|
|
f2((x - lx) * k),
|
|
f2((pageHeight - (y + ry)) * k),
|
|
f2(x * k),
|
|
f2((pageHeight - (y + ry)) * k),
|
|
'c'
|
|
].join(' '));
|
|
out([
|
|
f2((x + lx) * k),
|
|
f2((pageHeight - (y + ry)) * k),
|
|
f2((x + rx) * k),
|
|
f2((pageHeight - (y + ly)) * k),
|
|
f2((x + rx) * k),
|
|
f2((pageHeight - y) * k),
|
|
'c',
|
|
op
|
|
].join(' '));
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Adds an circle to PDF
|
|
|
|
@param {Number} x Coordinate (in units declared at inception of PDF document) against left edge of the page
|
|
@param {Number} y Coordinate (in units declared at inception of PDF document) against upper edge of the page
|
|
@param {Number} r Radius (in units declared at inception of PDF document)
|
|
@param {String} style (Defaults to active fill/stroke style) A string signalling if stroke, fill or both are to be applied.
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name circle
|
|
*/
|
|
API.circle = function (x, y, r, style) {
|
|
return this.ellipse(x, y, r, r, style);
|
|
};
|
|
|
|
/**
|
|
Adds a properties to the PDF document
|
|
|
|
@param {Object} A property_name-to-property_value object structure.
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name setProperties
|
|
*/
|
|
API.setProperties = function (properties) {
|
|
// copying only those properties we can render.
|
|
var property;
|
|
for (property in documentProperties) {
|
|
if (documentProperties.hasOwnProperty(property) && properties[property]) {
|
|
documentProperties[property] = properties[property];
|
|
}
|
|
}
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Sets font size for upcoming text elements.
|
|
|
|
@param {Number} size Font size in points.
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name setFontSize
|
|
*/
|
|
API.setFontSize = function (size) {
|
|
activeFontSize = size;
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Sets text font face, variant for upcoming text elements.
|
|
See output of jsPDF.getFontList() for possible font names, styles.
|
|
|
|
@param {String} fontName Font name or family. Example: "times"
|
|
@param {String} fontStyle Font style or variant. Example: "italic"
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name setFont
|
|
*/
|
|
API.setFont = function (fontName, fontStyle) {
|
|
activeFontKey = getFont(fontName, fontStyle);
|
|
// if font is not found, the above line blows up and we never go further
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Switches font style or variant for upcoming text elements,
|
|
while keeping the font face or family same.
|
|
See output of jsPDF.getFontList() for possible font names, styles.
|
|
|
|
@param {String} style Font style or variant. Example: "italic"
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name setFontStyle
|
|
*/
|
|
API.setFontStyle = API.setFontType = function (style) {
|
|
var undef;
|
|
activeFontKey = getFont(undef, style);
|
|
// if font is not found, the above line blows up and we never go further
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Returns an object - a tree of fontName to fontStyle relationships available to
|
|
active PDF document.
|
|
|
|
@public
|
|
@function
|
|
@returns {Object} Like {'times':['normal', 'italic', ... ], 'arial':['normal', 'bold', ... ], ... }
|
|
@methodOf jsPDF#
|
|
@name getFontList
|
|
*/
|
|
API.getFontList = function () {
|
|
// TODO: iterate over fonts array or return copy of fontmap instead in case more are ever added.
|
|
var list = {},
|
|
fontName,
|
|
fontStyle,
|
|
tmp;
|
|
|
|
for (fontName in fontmap) {
|
|
if (fontmap.hasOwnProperty(fontName)) {
|
|
list[fontName] = tmp = [];
|
|
for (fontStyle in fontmap[fontName]) {
|
|
if (fontmap[fontName].hasOwnProperty(fontStyle)) {
|
|
tmp.push(fontStyle);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return list;
|
|
};
|
|
|
|
/**
|
|
Sets line width for upcoming lines.
|
|
|
|
@param {Number} width Line width (in units declared at inception of PDF document)
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name setLineWidth
|
|
*/
|
|
API.setLineWidth = function (width) {
|
|
out((width * k).toFixed(2) + ' w');
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Sets the stroke color for upcoming elements.
|
|
|
|
Depending on the number of arguments given, Gray, RGB, or CMYK
|
|
color space is implied.
|
|
|
|
When only ch1 is given, "Gray" color space is implied and it
|
|
must be a value in the range from 0.00 (solid black) to to 1.00 (white)
|
|
if values are communicated as String types, or in range from 0 (black)
|
|
to 255 (white) if communicated as Number type.
|
|
The RGB-like 0-255 range is provided for backward compatibility.
|
|
|
|
When only ch1,ch2,ch3 are given, "RGB" color space is implied and each
|
|
value must be in the range from 0.00 (minimum intensity) to to 1.00
|
|
(max intensity) if values are communicated as String types, or
|
|
from 0 (min intensity) to to 255 (max intensity) if values are communicated
|
|
as Number types.
|
|
The RGB-like 0-255 range is provided for backward compatibility.
|
|
|
|
When ch1,ch2,ch3,ch4 are given, "CMYK" color space is implied and each
|
|
value must be a in the range from 0.00 (0% concentration) to to
|
|
1.00 (100% concentration)
|
|
|
|
Because JavaScript treats fixed point numbers badly (rounds to
|
|
floating point nearest to binary representation) it is highly advised to
|
|
communicate the fractional numbers as String types, not JavaScript Number type.
|
|
|
|
@param {Number|String} ch1 Color channel value
|
|
@param {Number|String} ch2 Color channel value
|
|
@param {Number|String} ch3 Color channel value
|
|
@param {Number|String} ch4 Color channel value
|
|
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name setDrawColor
|
|
*/
|
|
API.setDrawColor = function (ch1, ch2, ch3, ch4) {
|
|
var color;
|
|
if (ch2 === undefined || (ch4 === undefined && ch1 === ch2 === ch3)) {
|
|
// Gray color space.
|
|
if (typeof ch1 === 'string') {
|
|
color = ch1 + ' G';
|
|
} else {
|
|
color = f2(ch1 / 255) + ' G';
|
|
}
|
|
} else if (ch4 === undefined) {
|
|
// RGB
|
|
if (typeof ch1 === 'string') {
|
|
color = [ch1, ch2, ch3, 'RG'].join(' ');
|
|
} else {
|
|
color = [f2(ch1 / 255), f2(ch2 / 255), f2(ch3 / 255), 'RG'].join(' ');
|
|
}
|
|
} else {
|
|
// CMYK
|
|
if (typeof ch1 === 'string') {
|
|
color = [ch1, ch2, ch3, ch4, 'K'].join(' ');
|
|
} else {
|
|
color = [f2(ch1), f2(ch2), f2(ch3), f2(ch4), 'K'].join(' ');
|
|
}
|
|
}
|
|
|
|
out(color);
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Sets the fill color for upcoming elements.
|
|
|
|
Depending on the number of arguments given, Gray, RGB, or CMYK
|
|
color space is implied.
|
|
|
|
When only ch1 is given, "Gray" color space is implied and it
|
|
must be a value in the range from 0.00 (solid black) to to 1.00 (white)
|
|
if values are communicated as String types, or in range from 0 (black)
|
|
to 255 (white) if communicated as Number type.
|
|
The RGB-like 0-255 range is provided for backward compatibility.
|
|
|
|
When only ch1,ch2,ch3 are given, "RGB" color space is implied and each
|
|
value must be in the range from 0.00 (minimum intensity) to to 1.00
|
|
(max intensity) if values are communicated as String types, or
|
|
from 0 (min intensity) to to 255 (max intensity) if values are communicated
|
|
as Number types.
|
|
The RGB-like 0-255 range is provided for backward compatibility.
|
|
|
|
When ch1,ch2,ch3,ch4 are given, "CMYK" color space is implied and each
|
|
value must be a in the range from 0.00 (0% concentration) to to
|
|
1.00 (100% concentration)
|
|
|
|
Because JavaScript treats fixed point numbers badly (rounds to
|
|
floating point nearest to binary representation) it is highly advised to
|
|
communicate the fractional numbers as String types, not JavaScript Number type.
|
|
|
|
@param {Number|String} ch1 Color channel value
|
|
@param {Number|String} ch2 Color channel value
|
|
@param {Number|String} ch3 Color channel value
|
|
@param {Number|String} ch4 Color channel value
|
|
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name setFillColor
|
|
*/
|
|
API.setFillColor = function (ch1, ch2, ch3, ch4) {
|
|
var color;
|
|
|
|
if (ch2 === undefined || (ch4 === undefined && ch1 === ch2 === ch3)) {
|
|
// Gray color space.
|
|
if (typeof ch1 === 'string') {
|
|
color = ch1 + ' g';
|
|
} else {
|
|
color = f2(ch1 / 255) + ' g';
|
|
}
|
|
} else if (ch4 === undefined) {
|
|
// RGB
|
|
if (typeof ch1 === 'string') {
|
|
color = [ch1, ch2, ch3, 'rg'].join(' ');
|
|
} else {
|
|
color = [f2(ch1 / 255), f2(ch2 / 255), f2(ch3 / 255), 'rg'].join(' ');
|
|
}
|
|
} else {
|
|
// CMYK
|
|
if (typeof ch1 === 'string') {
|
|
color = [ch1, ch2, ch3, ch4, 'k'].join(' ');
|
|
} else {
|
|
color = [f2(ch1), f2(ch2), f2(ch3), f2(ch4), 'k'].join(' ');
|
|
}
|
|
}
|
|
|
|
out(color);
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Sets the text color for upcoming elements.
|
|
If only one, first argument is given,
|
|
treats the value as gray-scale color value.
|
|
|
|
@param {Number} r Red channel color value in range 0-255
|
|
@param {Number} g Green channel color value in range 0-255
|
|
@param {Number} b Blue channel color value in range 0-255
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name setTextColor
|
|
*/
|
|
API.setTextColor = function (r, g, b) {
|
|
if ((r === 0 && g === 0 && b === 0) || (typeof g === 'undefined')) {
|
|
textColor = f3(r / 255) + ' g';
|
|
} else {
|
|
textColor = [f3(r / 255), f3(g / 255), f3(b / 255), 'rg'].join(' ');
|
|
}
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Is an Object providing a mapping from human-readable to
|
|
integer flag values designating the varieties of line cap
|
|
and join styles.
|
|
|
|
@returns {Object}
|
|
@fieldOf jsPDF#
|
|
@name CapJoinStyles
|
|
*/
|
|
API.CapJoinStyles = {
|
|
0: 0,
|
|
'butt': 0,
|
|
'but': 0,
|
|
'bevel': 0,
|
|
1: 1,
|
|
'round': 1,
|
|
'rounded': 1,
|
|
'circle': 1,
|
|
2: 2,
|
|
'projecting': 2,
|
|
'project': 2,
|
|
'square': 2,
|
|
'milter': 2
|
|
};
|
|
|
|
/**
|
|
Sets the line cap styles
|
|
See {jsPDF.CapJoinStyles} for variants
|
|
|
|
@param {String|Number} style A string or number identifying the type of line cap
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name setLineCap
|
|
*/
|
|
API.setLineCap = function (style) {
|
|
var id = this.CapJoinStyles[style];
|
|
if (id === undefined) {
|
|
throw new Error("Line cap style of '" + style + "' is not recognized. See or extend .CapJoinStyles property for valid styles");
|
|
}
|
|
lineCapID = id;
|
|
out(id.toString(10) + ' J');
|
|
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
Sets the line join styles
|
|
See {jsPDF.CapJoinStyles} for variants
|
|
|
|
@param {String|Number} style A string or number identifying the type of line join
|
|
@function
|
|
@returns {jsPDF}
|
|
@methodOf jsPDF#
|
|
@name setLineJoin
|
|
*/
|
|
API.setLineJoin = function (style) {
|
|
var id = this.CapJoinStyles[style];
|
|
if (id === undefined) {
|
|
throw new Error("Line join style of '" + style + "' is not recognized. See or extend .CapJoinStyles property for valid styles");
|
|
}
|
|
lineJoinID = id;
|
|
out(id.toString(10) + ' j');
|
|
|
|
return this;
|
|
};
|
|
|
|
// Output is both an internal (for plugins) and external function
|
|
API.output = output;
|
|
|
|
/**
|
|
* Saves as PDF document. An alias of jsPDF.output('save', 'filename.pdf')
|
|
* @param {String} filename The filename including extension.
|
|
*
|
|
* @function
|
|
* @returns {jsPDF}
|
|
* @methodOf jsPDF#
|
|
* @name save
|
|
*/
|
|
API.save = function (filename) {
|
|
API.output('save', filename);
|
|
};
|
|
|
|
// applying plugins (more methods) ON TOP of built-in API.
|
|
// this is intentional as we allow plugins to override
|
|
// built-ins
|
|
for (plugin in jsPDF.API) {
|
|
if (jsPDF.API.hasOwnProperty(plugin)) {
|
|
if (plugin === 'events' && jsPDF.API.events.length) {
|
|
(function (events, newEvents) {
|
|
|
|
// jsPDF.API.events is a JS Array of Arrays
|
|
// where each Array is a pair of event name, handler
|
|
// Events were added by plugins to the jsPDF instantiator.
|
|
// These are always added to the new instance and some ran
|
|
// during instantiation.
|
|
|
|
var eventname, handler_and_args, i;
|
|
|
|
for (i = newEvents.length - 1; i !== -1; i--) {
|
|
// subscribe takes 3 args: 'topic', function, runonce_flag
|
|
// if undefined, runonce is false.
|
|
// users can attach callback directly,
|
|
// or they can attach an array with [callback, runonce_flag]
|
|
// that's what the "apply" magic is for below.
|
|
eventname = newEvents[i][0];
|
|
handler_and_args = newEvents[i][1];
|
|
events.subscribe.apply(
|
|
events,
|
|
[eventname].concat(
|
|
typeof handler_and_args === 'function' ?
|
|
[ handler_and_args ] :
|
|
handler_and_args
|
|
)
|
|
);
|
|
}
|
|
}(events, jsPDF.API.events));
|
|
} else {
|
|
API[plugin] = jsPDF.API[plugin];
|
|
}
|
|
}
|
|
}
|
|
|
|
/////////////////////////////////////////
|
|
// continuing initilisation of jsPDF Document object
|
|
/////////////////////////////////////////
|
|
|
|
|
|
// Add the first page automatically
|
|
addFonts();
|
|
activeFontKey = 'F1';
|
|
_addPage();
|
|
|
|
events.publish('initialized');
|
|
|
|
return API;
|
|
}
|
|
|
|
/**
|
|
jsPDF.API is a STATIC property of jsPDF class.
|
|
jsPDF.API is an object you can add methods and properties to.
|
|
The methods / properties you add will show up in new jsPDF objects.
|
|
|
|
One property is prepopulated. It is the 'events' Object. Plugin authors can add topics, callbacks to this object. These will be reassigned to all new instances of jsPDF.
|
|
Examples:
|
|
jsPDF.API.events['initialized'] = function(){ 'this' is API object }
|
|
jsPDF.API.events['addFont'] = function(added_font_object){ 'this' is API object }
|
|
|
|
@static
|
|
@public
|
|
@memberOf jsPDF
|
|
@name API
|
|
|
|
@example
|
|
jsPDF.API.mymethod = function(){
|
|
// 'this' will be ref to internal API object. see jsPDF source
|
|
// , so you can refer to built-in methods like so:
|
|
// this.line(....)
|
|
// this.text(....)
|
|
}
|
|
var pdfdoc = new jsPDF()
|
|
pdfdoc.mymethod() // <- !!!!!!
|
|
*/
|
|
jsPDF.API = {'events': []};
|
|
|
|
return jsPDF;
|
|
}());
|