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|
/**
* Creates new jsPDF document object instance
* @constructor jsPDF
* @param orientation One of "portrait" or "landscape" (or shortcuts "p" (Default), "l")
* @param unit Measurement unit to be used when coordinates are specified. One of "pt" (points), "mm" (Default), "cm", "in"
* @param format One of 'a3', 'a4' (Default),'a5' ,'letter' ,'legal'
* @returns {jsPDF}
*/
var jsPDF = function(/** String */ orientation, /** String */ unit, /** String */ format){
// Default parameter values
if (typeof orientation === 'undefined') orientation = 'p'
else orientation = orientation.toString().toLowerCase()
if (typeof unit === 'undefined') unit = 'mm'
if (typeof format === 'undefined') format = 'a4'
var format_as_string = format.toString().toLowerCase()
, HELVETICA = "helvetica"
, TIMES = "times"
, COURIER = "courier"
, NORMAL = "normal"
, BOLD = "bold"
, ITALIC = "italic"
, BOLD_ITALIC = "bolditalic"
, version = '20120220'
, content = []
, content_length = 0
, pdfVersion = '1.3' // PDF Version
, pageFormats = { // Size in pt of various paper formats
'a3': [841.89, 1190.55]
, 'a4': [595.28, 841.89]
, 'a5': [420.94, 595.28]
, 'letter': [612, 792]
, 'legal': [612, 1008]
}
, textColor = '0 g'
, drawColor = '0 G'
, page = 0
, objectNumber = 2 // 'n' Current object number
, outToPages = false // switches where out() prints. outToPages true = push to pages obj. outToPages false = doc builder content
, pages = []
, offsets = [] // List of offsets. Activated and reset by buildDocument(). Pupulated by various calls buildDocument makes.
, fonts = [] // List of fonts
, fontmap = {} // mapping structure - performance layer. See addFont()
, fontName = HELVETICA // Default font
, fontType = NORMAL // Default type
, activeFontKey // will be string representing the KEY of the font as combination of fontName + fontType
, lineWidth = 0.200025 // 2mm
, pageHeight
, pageWidth
, k // Scale factor
, documentProperties = {}
, fontSize = 16 // Default font size
, textColor = "0 g"
, lineCapID = 0
, lineJoinID = 0
, images = {}
/////////////////////
// Private functions
/////////////////////
// Convert an internal javascript utf16 string into a sequence of bytes
// code from utf8.js http://www.onicos.com/staff/iz/amuse/javascript/expert/utf.txt
// public domain lisence
, utf16to8 = function(str) {
var out, i, len, c;
out = "";
len = str.length;
for(i = 0; i < len; i++) {
c = str.charCodeAt(i);
if ((c >= 0x0001) && (c <= 0x007F)) {
out += str.charAt(i);
} else if (c > 0x07FF) {
out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
} else {
out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
}
}
return out;
}
// takes a string imgData containing the raw bytes of
// a jpeg image and returns [width, height]
// Algorithm from: http://www.64lines.com/jpeg-width-height
, getJpegSize = function(imgData) {
var width, height;
// Verify we have a valid jpeg header 0xff,0xd8,0xff,0xe0,?,?,'J','F','I','F',0x00
if (!imgData.charCodeAt(0) === 0xff ||
!imgData.charCodeAt(1) === 0xd8 ||
!imgData.charCodeAt(2) === 0xff ||
!imgData.charCodeAt(3) === 0xe0 ||
!imgData.charCodeAt(6) === 'J'.charCodeAt(0) ||
!imgData.charCodeAt(7) === 'F'.charCodeAt(0) ||
!imgData.charCodeAt(8) === 'I'.charCodeAt(0) ||
!imgData.charCodeAt(9) === 'F'.charCodeAt(0) ||
!imgData.charCodeAt(10) === 0x00) {
throw new Error('getJpegSize requires a binary jpeg file')
}
var blockLength = imgData.charCodeAt(4)*256 + imgData.charCodeAt(5);
var i = 4, len = imgData.length;
while ( i < len ) {
i += blockLength;
if (imgData.charCodeAt(i) !== 0xff) {
throw new Error('getJpegSize could not find the size of the image');
}
if (imgData.charCodeAt(i+1) === 0xc0) {
height = imgData.charCodeAt(i+5)*256 + imgData.charCodeAt(i+6);
width = imgData.charCodeAt(i+7)*256 + imgData.charCodeAt(i+8);
return [width, height];
} else {
i += 2;
blockLength = imgData.charCodeAt(i)*256 + imgData.charCodeAt(i+1)
}
}
}
// simplified (speedier) replacement for sprintf's %.2f conversion
, f2 = function(number){
return number.toFixed(2)
}
// simplified (speedier) replacement for sprintf's %.3f conversion
, f3 = function(number){
return number.toFixed(3)
}
// simplified (speedier) replacement for sprintf's %02d
, padd2 = function(number) {
var n = (number).toFixed(0)
if ( number < 10 ) return '0' + n
else return n
}
// simplified (speedier) replacement for sprintf's %02d
, padd10 = function(number) {
var n = (number).toFixed(0)
if (n.length < 10) return new Array( 11 - n.length ).join( '0' ) + n
else return n
}
, out = function(string) {
if(outToPages /* set by beginPage */) {
pages[page].push(string)
} else {
content.push(string)
content_length += string.length + 1 // +1 is for '\n' that will be used to join contents of content
}
}
, newObject = function() {
// Begin a new object
objectNumber ++
offsets[objectNumber] = content_length
out(objectNumber + ' 0 obj');
}
, putPages = function() {
var wPt = pageWidth * k
var hPt = pageHeight * k
// outToPages = false as set in endDocument(). out() writes to content.
for(n=1; n <= page; n++) {
newObject()
out('<</Type /Page')
out('/Parent 1 0 R');
out('/Resources 2 0 R')
out('/Contents ' + (objectNumber + 1) + ' 0 R>>')
out('endobj')
// Page content
p = pages[n].join('\n')
newObject()
out('<</Length ' + p.length + '>>')
putStream(p)
out('endobj')
}
offsets[1] = content_length
out('1 0 obj')
out('<</Type /Pages')
var kids = '/Kids ['
for (i = 0; i < page; i++) {
kids += (3 + 2 * i) + ' 0 R '
}
out(kids + ']')
out('/Count ' + page)
out('/MediaBox [0 0 '+f2(wPt)+' '+f2(hPt)+']')
out('>>')
out('endobj');
}
, putStream = function(str) {
out('stream')
out(str)
out('endstream')
}
, putResources = function() {
putFonts()
putImages()
// Resource dictionary
offsets[2] = content_length
out('2 0 obj')
out('<<')
putResourceDictionary()
out('>>')
out('endobj')
}
, putFonts = function() {
for (var i = 0, l=fonts.length; i < l; i++) {
putFont(fonts[i])
}
}
, putFont = function(font) {
newObject()
font.number = objectNumber
out('<</BaseFont/' + font.name + '/Type/Font')
out('/Subtype/Type1>>')
out('endobj')
}
, addFont = function(name, fontName, fontType, undef) {
var fontkey = 'F' + (fonts.length + 1).toString(10)
fonts.push({'key': fontkey, 'number': objectNumber, 'name': name, 'fontName': fontName, 'type': fontType})
// this is mapping structure for quick font lookup.
// returns the KEY of the font within fonts array.
if (fontmap[fontName] === undef){
fontmap[fontName] = {} // fontType is a var interpreted and converted to appropriate string. don't wrap in quotes.
}
fontmap[fontName][fontType] = fontkey
}
, addFonts = function() {
addFont('Helvetica', HELVETICA, NORMAL)
addFont('Helvetica-Bold', HELVETICA, BOLD)
addFont('Helvetica-Oblique', HELVETICA, ITALIC)
addFont('Helvetica-BoldOblique', HELVETICA, BOLD_ITALIC)
addFont('Courier', COURIER, NORMAL)
addFont('Courier-Bold', COURIER, BOLD)
addFont('Courier-Oblique', COURIER, ITALIC)
addFont('Courier-BoldOblique', COURIER, BOLD_ITALIC)
addFont('Times-Roman', TIMES, NORMAL)
addFont('Times-Bold', TIMES, BOLD)
addFont('Times-Italic', TIMES, ITALIC)
addFont('Times-BoldItalic', TIMES, BOLD_ITALIC)
}
, 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
for (var i = 0; i < fonts.length; i++) {
out('/' + fonts[i].key + ' ' + fonts[i].number + ' 0 R')
}
out('>>')
out('/XObject <<')
putXobjectDict()
out('>>')
}
, putXobjectDict = function() {
for (img in images) {
out('/I' + images[img]['i'] + ' ' + images[img]['n'] + ' 0 R');
}
}
, putInfo = function() {
out('/Producer (jsPDF ' + version + ')')
if(documentProperties.title != undefined) {
out('/Title (' + pdfEscape(documentProperties.title) + ')')
}
if(documentProperties.subject != undefined) {
out('/Subject (' + pdfEscape(documentProperties.subject) + ')')
}
if(documentProperties.author != undefined) {
out('/Author (' + pdfEscape(documentProperties.author) + ')')
}
if(documentProperties.keywords != undefined) {
out('/Keywords (' + pdfEscape(documentProperties.keywords) + ')')
}
if(documentProperties.creator != undefined) {
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')
}
, 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')
}
, getFont = function(fontName, fontType, undef) {
var key
try {
key = fontmap[fontName][fontType] // 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+"', '"+fontType+"'. 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
out('xref')
out('0 ' + (objectNumber + 1))
out('0000000000 65535 f ')
for (var 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')
}
// Replace '/', '(', and ')' with pdf-safe versions
, pdfEscape = function(text) {
return text.replace(/\\/g, '\\\\').replace(/\(/g, '\\(').replace(/\)/g, '\\)')
}
, 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;
}
// Image functionality ported from pdf.js
, putImg = function(img, url) {
newObject();
images[url]['n'] = objectNumber;
out('<</Type /XObject');
out('/Subtype /Image');
out('/Width ' + img['w']);
out('/Height ' + img['h']);
if (img['cs'] === 'Indexed') {
out('/ColorSpace [/Indexed /DeviceRGB '
+ (img['pal'].length / 3 - 1) + ' ' + (objectNumber + 1)
+ ' 0 R]');
} else {
out('/ColorSpace /' + img['cs']);
if (img['cs'] === 'DeviceCMYK') {
out('/Decode [1 0 1 0 1 0 1 0]');
}
}
out('/BitsPerComponent ' + img['bpc']);
if ('f' in img) {
out('/Filter /' + img['f']);
}
if ('dp' in img) {
out('/DecodeParms <<' + img['dp'] + '>>');
}
if ('trns' in img && img['trns'].constructor == Array) {
var trns = '';
for ( var i = 0; i < img['trns'].length; i++) {
trns += (img[trns][i] + ' ' + img['trns'][i] + ' ');
out('/Mask [' + trns + ']');
}
}
if ('smask' in img) {
out('/SMask ' + (objectNumber + 1) + ' 0 R');
}
out('/Length ' + img['data'].length + '>>');
putStream(img['data']);
out('endobj');
}
, putImages = function() {
for ( var url in images ) {
putImg(images[url], url);
}
}
// Public API
, _jsPDF = {
/**
* Adds (and transfers the focus to) new page to the PDF document.
* @function
* @returns {jsPDF}
* @name jsPDF.addPage
*/
addPage: function() {
_addPage()
return _jsPDF
},
/**
* Adds text to page. Supports adding multiline text when 'text' argument is an Array of Strings.
* @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 {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.
* @function
* @returns {jsPDF}
* @name jsPDF.text
*/
text: function(x, y, text) {
/**
* 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
*/
// 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)
}
var newtext, str
if (typeof text === 'string') {
str = pdfEscape(text)
} 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 ( var i = newtext.length - 1; i !== -1 ; i--) {
newtext[i] = pdfEscape( newtext[i] )
}
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 + ' ' + fontSize + ' Tf\n' + // font face, style, size
fontSize + ' TL\n' + // line spacing
textColor +
'\n' + f2(x * k) + ' ' + f2((pageHeight - y) * k) + ' Td\n(' +
str +
') Tj\nET'
)
return _jsPDF
},
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 _jsPDF
},
/**
* 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(212,110,[[2,2],[-2,2],[1,1,2,2,3,3],[2,1]], 10) // line, line, bezier curve, line
* @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 {Array} lines Array of *vector* shifts as pairs (lines) or sextets (cubic bezier curves).
* @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}
* @name jsPDF.text
*/
lines: function(x, y, lines, scale, style) {
var undef
style = getStyle(style)
scale = scale === undef ? [1,1] : scale
// starting point
out(f3(x * k) + ' ' + f3((pageHeight - y) * k) + ' m ')
var scalex = scale[0]
, scaley = scale[1]
, i = 0
, l = lines.length
, leg
, 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 < 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 _jsPDF
},
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 _jsPDF
},
triangle: function(x1, y1, x2, y2, x3, y3, style) {
this.lines(
x1, x2 // start of path
, [
[ 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
]
, [1,1]
, style
)
return _jsPDF;
},
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 _jsPDF
},
circle: function(x, y, r, style) {
return this.ellipse(x, y, r, r, style)
},
setProperties: function(properties) {
documentProperties = properties
return _jsPDF
},
addImage: function(imageData, format, x, y, w, h) {
if (format.toUpperCase() !== 'JPEG') {
throw new Error('addImage currently only supports format \'JPEG\', not \''+format+'\'');
}
var imageIndex = Object.keys(images).length;
var dims = getJpegSize(imageData);
var info = {
w : dims[0],
h : dims[1],
cs : 'DeviceRGB',
bpc : 8,
f : 'DCTDecode',
i : imageIndex,
data : imageData
};
images[imageIndex] = info
if (!w && !h) {
w = -96;
h = -96;
}
if (w < 0) {
w = (-1) * info['w'] * 72 / w / k;
}
if (h < 0) {
h = (-1) * info['h'] * 72 / h / k;
}
if (w === 0) {
w = h * info['w'] / info['h'];
}
if (h === 0) {
h = w * info['h'] / info['w'];
}
// out(sprintf('q %.2f 0 0 %.2f %.2f %.2f cm /I%d Do Q', w * k, h
// * k, x * k, (pageHeight - (y + h)) * k, info['i']));
out( 'q '+f2(w*k)+' 0 0 '+f2(h*k)+' '+
f2(x*k)+' '+f2((pageHeight - (y + h)) * k)+
' cm /I'+info['i']+' Do Q');
return _jsPDF
},
setFontSize: function(size) {
fontSize = size
return _jsPDF
},
setFont: function(name) {
var _name = name.toLowerCase()
activeFontKey = getFont(_name, fontType)
// if font is not found, the above line blows up and we never go further
fontName = _name
return _jsPDF
},
setFontType: function(type) {
var _type = type.toLowerCase()
activeFontKey = getFont(fontName, _type)
// if font is not found, the above line blows up and we never go further
fontType = _type
return _jsPDF
},
getFontList: function(){
// TODO: iterate over fonts array or return copy of fontmap instead in case more are ever added.
return {
HELVETICA:[NORMAL, BOLD, ITALIC, BOLD_ITALIC]
, TIMES:[NORMAL, BOLD, ITALIC, BOLD_ITALIC]
, COURIER:[NORMAL, BOLD, ITALIC, BOLD_ITALIC]
}
},
setLineWidth: function(width) {
out((width * k).toFixed(2) + ' w')
return _jsPDF
},
setDrawColor: function(r,g,b) {
var color
if ((r===0 && g===0 && b===0) || (typeof g === 'undefined')) {
color = f3(r/255) + ' G'
} else {
color = [f3(r/255), f3(g/255), f3(b/255), 'RG'].join(' ')
}
out(color)
return _jsPDF
},
setFillColor: function(r,g,b) {
var color
if ((r===0 && g===0 && b===0) || (typeof g === 'undefined')) {
color = f3(r/255) + ' g'
} else {
color = [f3(r/255), f3(g/255), f3(b/255), 'rg'].join(' ')
}
out(color)
return _jsPDF
},
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 _jsPDF
},
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
},
setLineCap: function(style, undef) {
var id = this.CapJoinStyles[style]
if (id === undef) {
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')
},
setLineJoin: function(style, undef) {
var id = this.CapJoinStyles[style]
if (id === undef) {
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')
},
base64encode: function(data) {
// use native code if it's present
var encode = btoa || function(data) {
/** @preserve
====================================================================
base64 encoder
MIT, GPL
version: 1109.2015
discuss at: http://phpjs.org/functions/base64_encode
+ original by: Tyler Akins (http://rumkin.com)
+ improved by: Bayron Guevara
+ improved by: Thunder.m
+ improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
+ bugfixed by: Pellentesque Malesuada
+ improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
+ improved by: Rafal Kukawski (http://kukawski.pl)
====================================================================
*/
var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="
, b64a = b64.split('')
, o1, o2, o3, h1, h2, h3, h4, bits, i = 0,
ac = 0,
enc = "",
tmp_arr = [];
do { // pack three octets into four hexets
o1 = data.charCodeAt(i++);
o2 = data.charCodeAt(i++);
o3 = data.charCodeAt(i++);
bits = o1 << 16 | o2 << 8 | o3;
h1 = bits >> 18 & 0x3f;
h2 = bits >> 12 & 0x3f;
h3 = bits >> 6 & 0x3f;
h4 = bits & 0x3f;
// use hexets to index into b64, and append result to encoded string
tmp_arr[ac++] = b64a[h1] + b64a[h2] + b64a[h3] + b64a[h4];
} while (i < data.length);
enc = tmp_arr.join('');
var r = data.length % 3;
return (r ? enc.slice(0, r - 3) : enc) + '==='.slice(r || 3);
// end of base64 encoder MIT, GPL
}
try {
return encode(data)
} catch(e) {
// INVALID_CHARACTER_ERR
// This is what happens if we have utf16 characters in our string.
// If so, we should re-encode them as utf-8 bytes.
if (e.code === 5) {
return encode(utf16to8(data))
} else {
throw e
}
}
},
output: function(type, options) {
var undef
switch (type){
case undef: return buildDocument()
case 'datauristring':
case 'datauristrlng':
return 'data:application/pdf;base64,' + this.base64encode(buildDocument())
case 'datauri':
case 'dataurl':
document.location.href = 'data:application/pdf;base64,' + this.base64encode(buildDocument()); break;
default: throw new Error('Output type "'+type+'" is not supported.')
}
// @TODO: Add different output options
}
}
/////////////////////////////////////////
// Initilisation if jsPDF Document object
/////////////////////////////////////////
if (unit == 'pt') {
k = 1
} else if(unit == 'mm') {
k = 72/25.4
} else if(unit == 'cm') {
k = 72/2.54
} else if(unit == 'in') {
k = 72
} else {
throw('Invalid unit: ' + unit)
}
// Dimensions are stored as user units and converted to points on output
if (format_as_string in pageFormats) {
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'
} else if (orientation === 'l' || orientation === 'landscape') {
orientation = 'l'
var tmp = pageWidth
pageWidth = pageHeight
pageHeight = tmp
} else {
throw('Invalid orientation: ' + orientation)
}
// Add the first page automatically
addFonts()
activeFontKey = getFont(fontName, fontType)
_addPage();
return _jsPDF
} |
