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modules_acroform.js.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>modules/acroform.js - Documentation</title>
<script src="scripts/prettify/prettify.js"></script>
<script src="scripts/prettify/lang-css.js"></script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify.css">
<link type="text/css" rel="stylesheet" href="styles/jsdoc.css">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<input type="checkbox" id="nav-trigger" class="nav-trigger" />
<label for="nav-trigger" class="navicon-button x">
<div class="navicon"></div>
</label>
<label for="nav-trigger" class="overlay"></label>
<nav>
<h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="jsPDF.html">jsPDF</a><ul class='methods'><li data-type='method'><a href="jsPDF.html#addFont">addFont</a></li><li data-type='method'><a href="jsPDF.html#addPage">addPage</a></li><li data-type='method'><a href="jsPDF.html#circle">circle</a></li><li data-type='method'><a href="jsPDF.html#clip">clip</a></li><li data-type='method'><a href="jsPDF.html#deletePage">deletePage</a></li><li data-type='method'><a href="jsPDF.html#ellipse">ellipse</a></li><li data-type='method'><a href="jsPDF.html#getCharSpace">getCharSpace</a></li><li data-type='method'><a href="jsPDF.html#getCreationDate">getCreationDate</a></li><li data-type='method'><a href="jsPDF.html#getDrawColor">getDrawColor</a></li><li data-type='method'><a href="jsPDF.html#getFileId">getFileId</a></li><li data-type='method'><a href="jsPDF.html#getFillColor">getFillColor</a></li><li data-type='method'><a href="jsPDF.html#getFontList">getFontList</a></li><li data-type='method'><a href="jsPDF.html#getFontSize">getFontSize</a></li><li data-type='method'><a href="jsPDF.html#getLineHeightFactor">getLineHeightFactor</a></li><li data-type='method'><a href="jsPDF.html#getR2L">getR2L</a></li><li data-type='method'><a href="jsPDF.html#getTextColor">getTextColor</a></li><li data-type='method'><a href="jsPDF.html#insertPage">insertPage</a></li><li data-type='method'><a href="jsPDF.html#line">line</a></li><li data-type='method'><a href="jsPDF.html#lines">lines</a></li><li data-type='method'><a href="jsPDF.html#lstext">lstext</a></li><li data-type='method'><a href="jsPDF.html#movePage">movePage</a></li><li data-type='method'><a href="jsPDF.html#output">output</a></li><li data-type='method'><a href="jsPDF.html#rect">rect</a></li><li data-type='method'><a href="jsPDF.html#roundedRect">roundedRect</a></li><li data-type='method'><a href="jsPDF.html#save">save</a></li><li data-type='method'><a href="jsPDF.html#setCharSpace">setCharSpace</a></li><li data-type='method'><a href="jsPDF.html#setCreationDate">setCreationDate</a></li><li data-type='method'><a href="jsPDF.html#setDisplayMode">setDisplayMode</a></li><li data-type='method'><a href="jsPDF.html#setDocumentProperties">setDocumentProperties</a></li><li data-type='method'><a href="jsPDF.html#setDrawColor">setDrawColor</a></li><li data-type='method'><a href="jsPDF.html#setFileId">setFileId</a></li><li data-type='method'><a href="jsPDF.html#setFillColor">setFillColor</a></li><li data-type='method'><a href="jsPDF.html#setFont">setFont</a></li><li data-type='method'><a href="jsPDF.html#setFontSize">setFontSize</a></li><li data-type='method'><a href="jsPDF.html#setFontStyle">setFontStyle</a></li><li data-type='method'><a href="jsPDF.html#setLineCap">setLineCap</a></li><li data-type='method'><a href="jsPDF.html#setLineDash">setLineDash</a></li><li data-type='method'><a href="jsPDF.html#setLineHeightFactor">setLineHeightFactor</a></li><li data-type='method'><a href="jsPDF.html#setLineJoin">setLineJoin</a></li><li data-type='method'><a href="jsPDF.html#setLineWidth">setLineWidth</a></li><li data-type='method'><a href="jsPDF.html#setMiterLimit">setMiterLimit</a></li><li data-type='method'><a href="jsPDF.html#setPage">setPage</a></li><li data-type='method'><a href="jsPDF.html#setR2L">setR2L</a></li><li data-type='method'><a href="jsPDF.html#setTextColor">setTextColor</a></li><li data-type='method'><a href="jsPDF.html#text">text</a></li><li data-type='method'><a href="jsPDF.html#triangle">triangle</a></li></ul></li><li><a href="module-AcroForm-AcroFormButton.html">AcroFormButton</a></li><li><a href="module-AcroForm-AcroFormCheckBox.html">AcroFormCheckBox</a></li><li><a href="module-AcroForm-AcroFormChoiceField.html">AcroFormChoiceField</a></li><li><a href="module-AcroForm-AcroFormComboBox.html">AcroFormComboBox</a><ul class='methods'><li data-type='method'><a href="module-AcroForm-AcroFormComboBox.html#addOption">addOption</a></li><li data-type='method'><a href="module-AcroForm-AcroFormComboBox.html#getOptions">getOptions</a></li><li data-type='method'><a href="module-AcroForm-AcroFormComboBox.html#removeOption">removeOption</a></li><li data-type='method'><a href="module-AcroForm-AcroFormComboBox.html#setOptions">setOptions</a></li></ul></li><li><a href="module-AcroForm-AcroFormEditBox.html">AcroFormEditBox</a><ul class='methods'><li data-type='method'><a href="module-AcroForm-AcroFormEditBox.html#addOption">addOption</a></li><li data-type='method'><a href="module-AcroForm-AcroFormEditBox.html#getOptions">getOptions</a></li><li data-type='method'><a href="module-AcroForm-AcroFormEditBox.html#removeOption">removeOption</a></li><li data-type='method'><a href="module-AcroForm-AcroFormEditBox.html#setOptions">setOptions</a></li></ul></li><li><a href="module-AcroForm-AcroFormField.html">AcroFormField</a></li><li><a href="module-AcroForm-AcroFormListBox.html">AcroFormListBox</a><ul class='methods'><li data-type='method'><a href="module-AcroForm-AcroFormListBox.html#addOption">addOption</a></li><li data-type='method'><a href="module-AcroForm-AcroFormListBox.html#getOptions">getOptions</a></li><li data-type='method'><a href="module-AcroForm-AcroFormListBox.html#removeOption">removeOption</a></li><li data-type='method'><a href="module-AcroForm-AcroFormListBox.html#setOptions">setOptions</a></li></ul></li><li><a href="module-AcroForm-AcroFormPasswordField.html">AcroFormPasswordField</a></li><li><a href="module-AcroForm-AcroFormPDFObject.html">AcroFormPDFObject</a></li><li><a href="module-AcroForm-AcroFormPushButton.html">AcroFormPushButton</a></li><li><a href="module-AcroForm-AcroFormRadioButton.html">AcroFormRadioButton</a></li><li><a href="module-AcroForm-AcroFormTextField.html">AcroFormTextField</a></li><li><a href="module-canvas-Canvas.html">Canvas</a></li></ul><h3>Modules</h3><ul><li><a href="module-AcroForm.html">AcroForm</a><ul class='methods'><li data-type='method'><a href="module-AcroForm.html#addButton">addButton</a></li><li data-type='method'><a href="module-AcroForm.html#addChoiceField">addChoiceField</a></li><li data-type='method'><a href="module-AcroForm.html#addField">addField</a></li><li data-type='method'><a href="module-AcroForm.html#addTextField">addTextField</a></li></ul></li><li><a href="module-addImage.html">addImage</a><ul class='methods'><li data-type='method'><a href="module-addImage.html#~addImage">addImage</a></li><li data-type='method'><a href="module-addImage.html#~arrayBufferToBase64">arrayBufferToBase64</a></li><li data-type='method'><a href="module-addImage.html#~arrayBufferToBinaryString">arrayBufferToBinaryString</a></li><li data-type='method'><a href="module-addImage.html#~binaryStringToUint8Array">binaryStringToUint8Array</a></li><li data-type='method'><a href="module-addImage.html#~convertStringToImageData">convertStringToImageData</a></li><li data-type='method'><a href="module-addImage.html#~createImageInfo">createImageInfo</a></li><li data-type='method'><a href="module-addImage.html#~extractImageFromDataUrl">extractImageFromDataUrl</a></li><li data-type='method'><a href="module-addImage.html#~extractInfoFromBase64DataURI">extractInfoFromBase64DataURI</a></li><li data-type='method'><a href="module-addImage.html#~getImageFileTypeByImageData">getImageFileTypeByImageData</a></li><li data-type='method'><a href="module-addImage.html#~getImageProperties">getImageProperties</a></li><li data-type='method'><a href="module-addImage.html#~isArrayBuffer">isArrayBuffer</a></li><li data-type='method'><a href="module-addImage.html#~isArrayBufferView">isArrayBufferView</a></li><li data-type='method'><a href="module-addImage.html#~isString">isString</a></li><li data-type='method'><a href="module-addImage.html#~sHashCode">sHashCode</a></li><li data-type='method'><a href="module-addImage.html#~supportsArrayBuffer">supportsArrayBuffer</a></li><li data-type='method'><a href="module-addImage.html#~validateStringAsBase64">validateStringAsBase64</a></li></ul></li><li><a href="module-annotations.html">annotations</a><ul class='methods'><li data-type='method'><a href="module-annotations.html#~createAnnotation">createAnnotation</a></li><li data-type='method'><a href="module-annotations.html#~getTextWidth">getTextWidth</a></li><li data-type='method'><a href="module-annotations.html#~link">link</a></li><li data-type='method'><a href="module-annotations.html#~textWithLink">textWithLink</a></li></ul></li><li><a href="module-arabic.html">arabic</a><ul class='methods'><li data-type='method'><a href="module-arabic.html#~processArabic">processArabic</a></li></ul></li><li><a href="module-autoprint.html">autoprint</a><ul class='methods'><li data-type='method'><a href="module-autoprint.html#~autoPrint">autoPrint</a></li></ul></li><li><a href="module-bmp_support.html">bmp_support</a></li><li><a href="module-canvas.html">canvas</a><ul class='methods'><li data-type='method'><a href="module-canvas.html#~getContext">getContext</a></li><li data-type='method'><a href="module-canvas.html#~toDataURL">toDataURL</a></li></ul></li><li><a href="module-cell.html">cell</a><ul class='methods'><li data-type='method'><a href="module-cell.html#~arrayMax">arrayMax</a></li><li data-type='method'><a href="module-cell.html#~calculateLineHeight">calculateLineHeight</a></li><li data-type='method'><a href="module-cell.html#~cell">cell</a></li><li data-type='method'><a href="module-cell.html#~cellAddPage">cellAddPage</a></li><li data-type='method'><a href="module-cell.html#~cellInitialize">cellInitialize</a></li><li data-type='method'><a href="module-cell.html#~getTextDimensions">getTextDimensions</a></li><li data-type='method'><a href="module-cell.html#~printHeaderRow">printHeaderRow</a></li><li data-type='method'><a href="module-cell.html#~setHeaderFunction">setHeaderFunction</a></li><li data-type='method'><a href="module-cell.html#~setTableHeaderRow">setTableHeaderRow</a></li><li data-type='method'><a href="module-cell.html#~table">table</a></li></ul></li><li><a href="module-context2d.html">context2d</a><ul class='methods'><li data-type='method'><a href="module-context2d.html#~arc">arc</a></li><li data-type='method'><a href="module-context2d.html#~arcTo">arcTo</a></li><li data-type='method'><a href="module-context2d.html#~beginPath">beginPath</a></li><li data-type='method'><a href="module-context2d.html#~bezierCurveTo">bezierCurveTo</a></li><li data-type='method'><a href="module-context2d.html#~clearRect">clearRect</a></li><li data-type='method'><a href="module-context2d.html#~clip">clip</a></li><li data-type='method'><a href="module-context2d.html#~closePath">closePath</a></li><li data-type='method'><a href="module-context2d.html#~createArc">createArc</a></li><li data-type='method'><a href="module-context2d.html#~fillRect">fillRect</a></li><li data-type='method'><a href="module-context2d.html#~fillText">fillText</a></li><li data-type='method'><a href="module-context2d.html#~lineTo">lineTo</a></li><li data-type='method'><a href="module-context2d.html#~measureText">measureText</a></li><li data-type='method'><a href="module-context2d.html#~moveTo">moveTo</a></li><li data-type='method'><a href="module-context2d.html#~quadraticCurveTo">quadraticCurveTo</a></li><li data-type='method'><a href="module-context2d.html#~rect">rect</a></li><li data-type='method'><a href="module-context2d.html#~restore">restore</a></li><li data-type='method'><a href="module-context2d.html#~rotate">rotate</a></li><li data-type='method'><a href="module-context2d.html#~save">save</a></li><li data-type='method'><a href="module-context2d.html#~scale">scale</a></li><li data-type='method'><a href="module-context2d.html#~setTransform">setTransform</a></li><li data-type='method'><a href="module-context2d.html#~stroke">stroke</a></li><li data-type='method'><a href="module-context2d.html#~strokeRect">strokeRect</a></li><li data-type='method'><a href="module-context2d.html#~strokeText">strokeText</a></li><li data-type='method'><a href="module-context2d.html#~toDataURL">toDataURL</a></li><li data-type='method'><a href="module-context2d.html#~transform">transform</a></li><li data-type='method'><a href="module-context2d.html#~translate">translate</a></li></ul></li><li><a href="module-fileloading.html">fileloading</a><ul class='methods'><li data-type='method'><a href="module-fileloading.html#~loadFile">loadFile</a></li><li data-type='method'><a href="module-fileloading.html#~loadImageFile">loadImageFile</a></li></ul></li><li><a href="module-gif_support.html">gif_support</a></li><li><a href="module-html.html">html</a><ul class='methods'><li data-type='method'><a href="module-html.html#~html">html</a></li></ul></li><li><a href="module-javascript.html">javascript</a><ul class='methods'><li data-type='method'><a href="module-javascript.html#~addJS">addJS</a></li></ul></li><li><a href="module-outline.html">outline</a></li><li><a href="module-png_support.html">png_support</a></li><li><a href="module-setLanguage.html">setLanguage</a><ul class='methods'><li data-type='method'><a href="module-setLanguage.html#~setLanguage">setLanguage</a></li></ul></li><li><a href="module-split_text_to_size.html">split_text_to_size</a><ul class='methods'><li data-type='method'><a href="module-split_text_to_size.html#~getArraySum">getArraySum</a></li><li data-type='method'><a href="module-split_text_to_size.html#~getCharWidthsArray">getCharWidthsArray</a></li><li data-type='method'><a href="module-split_text_to_size.html#~getStringUnitWidth">getStringUnitWidth</a></li><li data-type='method'><a href="module-split_text_to_size.html#~splitTextToSize">splitTextToSize</a></li></ul></li><li><a href="module-standard_fonts_metrics.html">standard_fonts_metrics</a></li><li><a href="module-svg.html">svg</a><ul class='methods'><li data-type='method'><a href="module-svg.html#~addSvg">addSvg</a></li><li data-type='method'><a href="module-svg.html#~addSvgAsImage">addSvgAsImage</a></li></ul></li><li><a href="module-total_pages.html">total_pages</a><ul class='methods'><li data-type='method'><a href="module-total_pages.html#~putTotalPages">putTotalPages</a></li></ul></li><li><a href="module-ttfsupport.html">ttfsupport</a></li><li><a href="module-utf8.html">utf8</a></li><li><a href="module-vFS.html">vFS</a><ul class='methods'><li data-type='method'><a href="module-vFS.html#~addFileToVFS">addFileToVFS</a></li><li data-type='method'><a href="module-vFS.html#~existsFileInVFS">existsFileInVFS</a></li><li data-type='method'><a href="module-vFS.html#~getFileFromVFS">getFileFromVFS</a></li></ul></li><li><a href="module-viewerpreferences.html">viewerpreferences</a><ul class='methods'><li data-type='method'><a href="module-viewerpreferences.html#~viewerPreferences">viewerPreferences</a></li></ul></li><li><a href="module-xmp_metadata.html">xmp_metadata</a><ul class='methods'><li data-type='method'><a href="module-xmp_metadata.html#~addMetadata">addMetadata</a></li></ul></li></ul><h3>Global</h3><ul><li><a href="global.html#addHTML">addHTML</a></li><li><a href="global.html#BmpDecoder">BmpDecoder</a></li><li><a href="global.html#SetsoptionsforBidiconversion">Sets options for Bidi conversion</a></li></ul>
</nav>
<div id="main">
<h1 class="page-title">modules/acroform.js</h1>
<section>
<article>
<pre class="prettyprint source linenums"><code>/**
* @license
* Copyright (c) 2016 Alexander Weidt,
* https://github.com/BiggA94
*
* Licensed under the MIT License. http://opensource.org/licenses/mit-license
*/
/**
* jsPDF AcroForm Plugin
* @module AcroForm
*/
(function (jsPDFAPI, globalObj) {
'use strict';
var scope;
var scaleFactor = 1;
var pdfEscape = function (value) {return value.replace(/\\/g, '\\\\').replace(/\(/g, '\\(').replace(/\)/g, '\\)')};
var pdfUnescape = function (value) {return value.replace(/\\\\/g, '\\').replace(/\\\(/g, '(').replace(/\\\)/g, ')');};
var f2 = function (number) {
if (isNaN(number)) {
throw new Error('Invalid argument passed to jsPDF.f2');
}
return number.toFixed(2); // Ie, %.2f
};
var f5 = function (number) {
if (isNaN(number)) {
throw new Error('Invalid argument passed to jsPDF.f2');
}
return number.toFixed(5); // Ie, %.2f
};
jsPDFAPI.__acroform__ = {}
var inherit = function (child, parent) {
var ObjectCreate = Object.create || function (o) {
var F = function () {
};
F.prototype = o;
return new F();
};
child.prototype = Object.create(parent.prototype);
child.prototype.constructor = child;
};
var scale = function (x) {
return (x * scaleFactor);
};
var antiScale = function (x) {
return (x / scaleFactor);
};
var createFormXObject = function (formObject) {
var xobj = new AcroFormXObject();
var height = AcroFormAppearance.internal.getHeight(formObject) || 0;
var width = AcroFormAppearance.internal.getWidth(formObject) || 0;
xobj.BBox = [0, 0, Number(f2(width)), Number(f2(height))];
return xobj;
};
/**
* Bit-Operations
*/
var setBit = jsPDFAPI.__acroform__.setBit = function (number, bitPosition) {
number = number || 0;
bitPosition = bitPosition || 0;
if (isNaN(number) || isNaN(bitPosition)) {
throw new Error('Invalid arguments passed to jsPDF.API.__acroform__.setBit');
}
var bitMask = 1 << bitPosition;
number |= bitMask;
return number;
};
var clearBit = jsPDFAPI.__acroform__.clearBit = function (number, bitPosition) {
number = number || 0;
bitPosition = bitPosition || 0;
if (isNaN(number) || isNaN(bitPosition)) {
throw new Error('Invalid arguments passed to jsPDF.API.__acroform__.clearBit');
}
var bitMask = 1 << bitPosition;
number &= ~bitMask;
return number;
};
var getBit = jsPDFAPI.__acroform__.getBit = function (number, bitPosition) {
if (isNaN(number) || isNaN(bitPosition)) {
throw new Error('Invalid arguments passed to jsPDF.API.__acroform__.getBit');
}
return (number & (1 << bitPosition)) === 0 ? 0 : 1;
};
/*
* Ff starts counting the bit position at 1 and not like javascript at 0
*/
var getBitForPdf = jsPDFAPI.__acroform__.getBitForPdf = function (number, bitPosition) {
if (isNaN(number) || isNaN(bitPosition)) {
throw new Error('Invalid arguments passed to jsPDF.API.__acroform__.getBitForPdf');
}
return getBit(number, bitPosition - 1);
};
var setBitForPdf = jsPDFAPI.__acroform__.setBitForPdf = function (number, bitPosition) {
if (isNaN(number) || isNaN(bitPosition)) {
throw new Error('Invalid arguments passed to jsPDF.API.__acroform__.setBitForPdf');
}
return setBit(number, bitPosition - 1);
};
var clearBitForPdf = jsPDFAPI.__acroform__.clearBitForPdf = function (number, bitPosition, value) {
if (isNaN(number) || isNaN(bitPosition)) {
throw new Error('Invalid arguments passed to jsPDF.API.__acroform__.clearBitForPdf');
}
return clearBit(number, bitPosition - 1);
};
var calculateCoordinates = jsPDFAPI.__acroform__.calculateCoordinates = function (args) {
var getHorizontalCoordinate = this.internal.getHorizontalCoordinate;
var getVerticalCoordinate = this.internal.getVerticalCoordinate;
var x = args[0];
var y = args[1];
var w = args[2];
var h = args[3];
var coordinates = {};
coordinates.lowerLeft_X = getHorizontalCoordinate(x) || 0;
coordinates.lowerLeft_Y = getVerticalCoordinate(y + h) || 0;
coordinates.upperRight_X = getHorizontalCoordinate(x + w) || 0;
coordinates.upperRight_Y = getVerticalCoordinate(y) || 0;
return [Number(f2(coordinates.lowerLeft_X)), Number(f2(coordinates.lowerLeft_Y)), Number(f2(coordinates.upperRight_X)), Number(f2(coordinates.upperRight_Y))];
};
var calculateAppearanceStream = function (formObject) {
if (formObject.appearanceStreamContent) {
return formObject.appearanceStreamContent;
}
if (!formObject.V && !formObject.DV) {
return;
}
// else calculate it
var stream = [];
var text = formObject.V || formObject.DV;
var calcRes = calculateX(formObject, text);
var fontKey = scope.internal.getFont(formObject.fontName, formObject.fontStyle).id;
//PDF 32000-1:2008, page 444
stream.push('/Tx BMC');
stream.push('q');
stream.push('BT'); // Begin Text
stream.push(scope.__private__.encodeColorString(formObject.color));
stream.push('/' + fontKey + ' ' + f2(calcRes.fontSize) + ' Tf');
stream.push('1 0 0 1 0 0 Tm');// Transformation Matrix
stream.push(calcRes.text);
stream.push('ET'); // End Text
stream.push('Q')
stream.push('EMC');
var appearanceStreamContent = new createFormXObject(formObject);
appearanceStreamContent.stream = stream.join("\n");
var appearance = {
N: {
'Normal': appearanceStreamContent
}
};
return appearanceStreamContent;
};
var calculateX = function (formObject, text) {
var maxFontSize = formObject.maxFontSize || 12;
var font = formObject.fontName;
var returnValue = {
text: "",
fontSize: ""
};
// Remove Brackets
text = (text.substr(0, 1) == '(') ? text.substr(1) : text;
text = (text.substr(text.length - 1) == ')') ? text.substr(0, text.length - 1) : text;
// split into array of words
var textSplit = text.split(' ');
var color = scope.__private__.encodeColorString(formObject.color);
var fontSize = maxFontSize; // The Starting fontSize (The Maximum)
var lineSpacing = 2;
var borderPadding = 2;
var height = AcroFormAppearance.internal.getHeight(formObject) || 0;
height = (height < 0) ? -height : height;
var width = AcroFormAppearance.internal.getWidth(formObject) || 0;
width = (width < 0) ? -width : width;
var isSmallerThanWidth = function (i, lastLine, fontSize) {
if (i + 1 < textSplit.length) {
var tmp = lastLine + " " + textSplit[i + 1];
var TextWidth = ((calculateFontSpace(tmp, formObject, fontSize).width));
var FieldWidth = (width - 2 * borderPadding);
return (TextWidth <= FieldWidth);
} else {
return false;
}
};
fontSize++;
FontSize: while (true) {
var text = "";
fontSize--;
var textHeight = calculateFontSpace("3", formObject, fontSize).height;
var startY = (formObject.multiline) ? height - fontSize : (height - textHeight) / 2;
startY += lineSpacing;
var startX = -borderPadding;
var lastX = startX, lastY = startY;
var firstWordInLine = 0, lastWordInLine = 0;
var lastLength = 0;
var y = 0;
if (fontSize <= 0) {
// In case, the Text doesn't fit at all
fontSize = 12;
text = "(...) Tj\n";
text += "% Width of Text: " + calculateFontSpace(text, formObject, fontSize).width + ", FieldWidth:" + width + "\n";
break;
}
lastLength = calculateFontSpace(textSplit[0] + " ", formObject, fontSize).width;
var lastLine = "";
var lineCount = 0;
Line:
for (var i in textSplit) {
if (textSplit.hasOwnProperty(i)) {
lastLine += textSplit[i] + " ";
// Remove last blank
lastLine = (lastLine.substr(lastLine.length - 1) == " ") ? lastLine.substr(0, lastLine.length - 1) : lastLine;
var key = parseInt(i);
lastLength = calculateFontSpace(lastLine + " ", formObject, fontSize).width;
var nextLineIsSmaller = isSmallerThanWidth(key, lastLine, fontSize);
var isLastWord = i >= textSplit.length - 1;
if (nextLineIsSmaller && !isLastWord) {
lastLine += " ";
continue; // Line
} else if (!nextLineIsSmaller && !isLastWord) {
if (!formObject.multiline) {
continue FontSize;
} else {
if (((textHeight + lineSpacing) * (lineCount + 2) + lineSpacing) > height) {
// If the Text is higher than the
// FieldObject
continue FontSize;
}
lastWordInLine = key;
// go on
}
} else if (isLastWord) {
lastWordInLine = key;
} else {
if (formObject.multiline && ((textHeight + lineSpacing) * (lineCount + 2) + lineSpacing) > height) {
// If the Text is higher than the FieldObject
continue FontSize;
}
}
var line = '';
for (var x = firstWordInLine; x <= lastWordInLine; x++) {
line += textSplit[x] + ' ';
}
// Remove last blank
line = (line.substr(line.length - 1) == " ") ? line.substr(0, line.length - 1) : line;
// lastLength -= blankSpace.width;
lastLength = calculateFontSpace(line, formObject, fontSize).width;
// Calculate startX
switch (formObject.textAlign) {
case 'right':
startX = (width - lastLength - borderPadding);
break;
case 'center':
startX = (width - lastLength) / 2;
break;
case 'left':
default:
startX = borderPadding;
break;
}
text += f2(startX) + ' ' + f2(lastY) + ' Td\n';
text += '(' + pdfEscape(line) + ') Tj\n';
// reset X in PDF
text += (-f2(startX)) + ' 0 Td\n';
// After a Line, adjust y position
lastY = -(fontSize + lineSpacing);
lastX = startX;
// Reset for next iteration step
lastLength = 0;
firstWordInLine = lastWordInLine + 1;
lineCount++;
lastLine = "";
continue Line;
}
}
break;
}
returnValue.text = text;
returnValue.fontSize = fontSize;
return returnValue;
};
/**
* Small workaround for calculating the TextMetric approximately.
*
* @param text
* @param fontsize
* @returns {TextMetrics} (Has Height and Width)
*/
var calculateFontSpace = function (text, formObject, fontSize) {
var font = scope.internal.getFont(formObject.fontName, formObject.fontStyle);
var width = scope.getStringUnitWidth(text, {font : font, fontSize: parseFloat(fontSize), charSpace: 0}) * parseFloat(fontSize);
var height = scope.getStringUnitWidth("3", {font : font, fontSize: parseFloat(fontSize), charSpace: 0}) * parseFloat(fontSize) * 1.5;
return {height: height, width: width};
};
var acroformPluginTemplate = {
fields: [],
xForms: [],
/**
* acroFormDictionaryRoot contains information about the AcroForm
* Dictionary 0: The Event-Token, the AcroFormDictionaryCallback has
* 1: The Object ID of the Root
*/
acroFormDictionaryRoot: null,
/**
* After the PDF gets evaluated, the reference to the root has to be
* reset, this indicates, whether the root has already been printed
* out
*/
printedOut: false,
internal: null,
isInitialized: false
};
var annotReferenceCallback = function () {
//set objId to undefined and force it to get a new objId on buildDocument
scope.internal.acroformPlugin.acroFormDictionaryRoot.objId = undefined;
var fields = scope.internal.acroformPlugin.acroFormDictionaryRoot.Fields;
for (var i in fields) {
if (fields.hasOwnProperty(i)) {
var formObject = fields[i];
//set objId to undefined and force it to get a new objId on buildDocument
formObject.objId = undefined;
// add Annot Reference!
if (formObject.hasAnnotation) {
// If theres an Annotation Widget in the Form Object, put the
// Reference in the /Annot array
createAnnotationReference.call(scope, formObject);
}
}
}
};
var putForm = function (formObject) {
if (scope.internal.acroformPlugin.printedOut) {
scope.internal.acroformPlugin.printedOut = false;
scope.internal.acroformPlugin.acroFormDictionaryRoot = null;
}
if (!scope.internal.acroformPlugin.acroFormDictionaryRoot) {
initializeAcroForm.call(scope);
}
scope.internal.acroformPlugin.acroFormDictionaryRoot.Fields.push(formObject);
};
/**
* Create the Reference to the widgetAnnotation, so that it gets referenced
* in the Annot[] int the+ (Requires the Annotation Plugin)
*/
var createAnnotationReference = function (object) {
var options = {
type: 'reference',
object: object
};
var findEntry = function (entry) { return (entry.type === options.type && entry.object === options.object); };
if (scope.internal.getPageInfo(object.page).pageContext.annotations.find(findEntry) === undefined) {
scope.internal.getPageInfo(object.page).pageContext.annotations.push(options);
}
};
// Callbacks
var putCatalogCallback = function () {
// Put reference to AcroForm to DocumentCatalog
if (typeof scope.internal.acroformPlugin.acroFormDictionaryRoot != 'undefined') {
// for safety, shouldn't normally be the case
scope.internal.write('/AcroForm ' + scope.internal.acroformPlugin.acroFormDictionaryRoot.objId + ' ' + 0 + ' R');
} else {
throw new Error('putCatalogCallback: Root missing.');
}
};
/**
* Adds /Acroform X 0 R to Document Catalog, and creates the AcroForm
* Dictionary
*/
var AcroFormDictionaryCallback = function () {
// Remove event
scope.internal.events.unsubscribe(scope.internal.acroformPlugin.acroFormDictionaryRoot._eventID);
delete scope.internal.acroformPlugin.acroFormDictionaryRoot._eventID;
scope.internal.acroformPlugin.printedOut = true;
};
/**
* Creates the single Fields and writes them into the Document
*
* If fieldArray is set, use the fields that are inside it instead of the
* fields from the AcroRoot (for the FormXObjects...)
*/
var createFieldCallback = function (fieldArray) {
var standardFields = (!fieldArray);
if (!fieldArray) {
// in case there is no fieldArray specified, we want to print out
// the Fields of the AcroForm
// Print out Root
scope.internal.newObjectDeferredBegin(scope.internal.acroformPlugin.acroFormDictionaryRoot.objId, true);
scope.internal.acroformPlugin.acroFormDictionaryRoot.putStream();
}
var fieldArray = fieldArray || scope.internal.acroformPlugin.acroFormDictionaryRoot.Kids;
for (var i in fieldArray) {
if (fieldArray.hasOwnProperty(i)) {
var key = i;
var fieldObject = fieldArray[i];
var keyValueList = [];
var oldRect = fieldObject.Rect;
if (fieldObject.Rect) {
fieldObject.Rect = calculateCoordinates.call(this, fieldObject.Rect);
}
// Start Writing the Object
scope.internal.newObjectDeferredBegin(fieldObject.objId, true);
fieldObject.DA = AcroFormAppearance.createDefaultAppearanceStream(fieldObject);
if (typeof fieldObject === "object" && typeof fieldObject.getKeyValueListForStream === "function") {
keyValueList = fieldObject.getKeyValueListForStream();
}
fieldObject.Rect = oldRect;
if (fieldObject.hasAppearanceStream && !fieldObject.appearanceStreamContent) {
// Calculate Appearance
var appearance = calculateAppearanceStream.call(this, fieldObject);
keyValueList.push({key : 'AP', value : "<</N " + appearance + ">>"});
scope.internal.acroformPlugin.xForms.push(appearance);
}
// Assume AppearanceStreamContent is a Array with N,R,D (at least
// one of them!)
if (fieldObject.appearanceStreamContent) {
var appearanceStreamString = "";
// Iterate over N,R and D
for (var k in fieldObject.appearanceStreamContent) {
if (fieldObject.appearanceStreamContent.hasOwnProperty(k)) {
var value = fieldObject.appearanceStreamContent[k];
appearanceStreamString += ("/" + k + " ");
appearanceStreamString += "<<";
if (Object.keys(value).length >= 1 || Array.isArray(value)) {
// appearanceStream is an Array or Object!
for (var i in value) {
if (value.hasOwnProperty(i)) {
var obj = value[i];
if (typeof obj === 'function') {
// if Function is referenced, call it in order
// to get the FormXObject
obj = obj.call(this, fieldObject);
}
appearanceStreamString += ("/" + i + " " + obj + " ");
// In case the XForm is already used, e.g. OffState
// of CheckBoxes, don't add it
if (!(scope.internal.acroformPlugin.xForms.indexOf(obj) >= 0))
scope.internal.acroformPlugin.xForms.push(obj);
}
}
} else {
var obj = value;
if (typeof obj === 'function') {
// if Function is referenced, call it in order to
// get the FormXObject
obj = obj.call(this, fieldObject);
}
appearanceStreamString += ("/" + i + " " + obj);
if (!(scope.internal.acroformPlugin.xForms.indexOf(obj) >= 0))
scope.internal.acroformPlugin.xForms.push(obj);
}
appearanceStreamString += ">>";
}
}
// appearance stream is a normal Object..
keyValueList.push({key : 'AP', value : "<<\n" + appearanceStreamString + ">>"});
}
scope.internal.putStream({additionalKeyValues: keyValueList});
scope.internal.out("endobj");
}
}
if (standardFields) {
createXFormObjectCallback.call(this, scope.internal.acroformPlugin.xForms);
}
};
var createXFormObjectCallback = function (fieldArray) {
for (var i in fieldArray) {
if (fieldArray.hasOwnProperty(i)) {
var key = i;
var fieldObject = fieldArray[i];
// Start Writing the Object
scope.internal.newObjectDeferredBegin(fieldObject && fieldObject.objId, true);
if (typeof fieldObject === "object" && typeof fieldObject.putStream === "function") {
fieldObject.putStream();
}
delete fieldArray[key];
}
}
};
var initializeAcroForm = function () {
if (this.internal !== undefined && (this.internal.acroformPlugin === undefined || this.internal.acroformPlugin.isInitialized === false)) {
scope = this;
AcroFormField.FieldNum = 0;
this.internal.acroformPlugin = JSON.parse(JSON.stringify(acroformPluginTemplate));
if (this.internal.acroformPlugin.acroFormDictionaryRoot) {
throw new Error("Exception while creating AcroformDictionary");
}
scaleFactor = scope.internal.scaleFactor;
// The Object Number of the AcroForm Dictionary
scope.internal.acroformPlugin.acroFormDictionaryRoot = new AcroFormDictionary();
// add Callback for creating the AcroForm Dictionary
scope.internal.acroformPlugin.acroFormDictionaryRoot._eventID = scope.internal.events.subscribe('postPutResources', AcroFormDictionaryCallback);
scope.internal.events.subscribe('buildDocument', annotReferenceCallback); // buildDocument
// Register event, that is triggered when the DocumentCatalog is
// written, in order to add /AcroForm
scope.internal.events.subscribe('putCatalog', putCatalogCallback);
// Register event, that creates all Fields
scope.internal.events.subscribe('postPutPages', createFieldCallback);
scope.internal.acroformPlugin.isInitialized = true;
}
}
//PDF 32000-1:2008, page 26, 7.3.6
var arrayToPdfArray = jsPDFAPI.__acroform__.arrayToPdfArray = function (array) {
if (Array.isArray(array)) {
var content = '[';
for (var i = 0; i < array.length; i++) {
if (i !== 0) {
content += ' ';
}
switch(typeof array[i]) {
case 'boolean':
case 'number':
case 'object':
content += array[i].toString();
break;
case 'string':
if (array[i].substr(0,1) !== '/') {
content += '(' + pdfEscape(array[i].toString()) + ')';
} else {
content += array[i].toString();
}
break;
}
}
content += ']';
return content;
}
throw new Error('Invalid argument passed to jsPDF.__acroform__.arrayToPdfArray');
};
function getMatches(string, regex, index) {
index || (index = 1); // default to the first capturing group
var matches = [];
var match;
while (match = regex.exec(string)) {
matches.push(match[index]);
}
return matches;
}
var pdfArrayToStringArray = function (array) {
var result = [];
if (typeof array === "string") {
result = getMatches(array, /\((.*?)\)/g);
}
return result;
};
var toPdfString = function (string) {
string = string || "";
string.toString();
string = '(' + pdfEscape(string) + ')';
return string;
};
// ##########################
// Classes
// ##########################
/**
* @class AcroFormPDFObject
* @classdesc A AcroFormPDFObject
*/
var AcroFormPDFObject = function () {
var _objId;
/** *
* @name AcroFormPDFObject#objId
* @type {any}
*/
Object.defineProperty(this, 'objId', {
configurable: true,
get: function () {
if (!_objId) {
_objId = scope.internal.newObjectDeferred();
}
if (!_objId) {
throw new Error("AcroFormPDFObject: Couldn't create Object ID");
}
return _objId
},
set: function (value) {
_objId = value;
}
});
};
/**
* @function AcroFormPDFObject.toString
*/
AcroFormPDFObject.prototype.toString = function () {
return this.objId + " 0 R";
};
AcroFormPDFObject.prototype.putStream = function () {
var keyValueList = this.getKeyValueListForStream();
scope.internal.putStream({data: this.stream, additionalKeyValues: keyValueList});
scope.internal.out("endobj");
};
/**
* Returns an key-value-List of all non-configurable Variables from the Object
*
* @name getKeyValueListForStream
* @returns {string}
*/
AcroFormPDFObject.prototype.getKeyValueListForStream = function () {
var createKeyValueListFromFieldObject = function (fieldObject) {
var keyValueList = [];
var keys = Object.getOwnPropertyNames(fieldObject).filter(function (key) {
return (key != 'content' && key != 'appearanceStreamContent' && key.substring(0, 1) != "_");
});
for (var i in keys) {
if (Object.getOwnPropertyDescriptor(fieldObject, keys[i]).configurable === false) {
var key = keys[i];
var value = fieldObject[key];
if (value) {
if (Array.isArray(value)) {
keyValueList.push({key: key, value: arrayToPdfArray(value)});
} else if (value instanceof AcroFormPDFObject) {
// In case it is a reference to another PDFObject,
// take the reference number
keyValueList.push({key: key, value: value.objId + " 0 R"});
} else if (typeof value !== "function"){
keyValueList.push({key: key, value: value});
}
}
}
}
return keyValueList;
};
return createKeyValueListFromFieldObject(this);
};
var AcroFormXObject = function () {
AcroFormPDFObject.call(this);
Object.defineProperty(this, 'Type', {
value : "/XObject",
configurable: false,
writeable: true
});
Object.defineProperty(this, 'Subtype', {
value : "/Form",
configurable: false,
writeable: true
});
Object.defineProperty(this, 'FormType', {
value : 1,
configurable: false,
writeable: true
});
var _BBox = [];
Object.defineProperty(this, 'BBox', {
configurable: false,
writeable: true,
get: function () {
return _BBox;
},
set: function (value) {
_BBox = value;
}
});
Object.defineProperty(this, 'Resources', {
value : "2 0 R",
configurable: false,
writeable: true
});
var _stream;
Object.defineProperty(this, 'stream', {
enumerable: false,
configurable: true,
set: function (value) {
_stream = value.trim();
},
get: function () {
if (_stream) {
return _stream;
} else {
return null;
}
}
});
};
inherit(AcroFormXObject, AcroFormPDFObject);
var AcroFormDictionary = function () {
AcroFormPDFObject.call(this);
var _Kids = [];
Object.defineProperty(this, 'Kids', {
enumerable: false,
configurable: true,
get: function () {
if (_Kids.length > 0) {
return _Kids;
} else {
return;
}
}
});
Object.defineProperty(this, 'Fields', {
enumerable: false,
configurable: false,
get: function () {
return _Kids;
}
});
// Default Appearance
var _DA;
Object.defineProperty(this, 'DA', {
enumerable: false,
configurable: false,
get: function () {
if (!_DA) {
return;
}
return '(' + _DA + ')'
},
set: function (value) {
_DA = value;
}
});
};
inherit(AcroFormDictionary, AcroFormPDFObject);
/**
* The Field Object contains the Variables, that every Field needs
*
* @class AcroFormField
* @classdesc An AcroForm FieldObject
*/
var AcroFormField = function () {
AcroFormPDFObject.call(this);
//Annotation-Flag See Table 165
var _F = 4;
Object.defineProperty(this, 'F', {
enumerable: false,
configurable: false,
get: function () {
return _F;
},
set: function (value) {
if (!isNaN(value)) {
_F = value;
} else {
throw new Error('Invalid value "' + value + '" for attribute F supplied.');
}
}
});
/**
* (PDF 1.2) If set, print the annotation when the page is printed. If clear, never print the annotation, regardless of wether is is displayed on the screen.
* NOTE 2 This can be useful for annotations representing interactive pushbuttons, which would serve no meaningful purpose on the printed page.
*
* @name AcroFormField#showWhenPrinted
* @default true
* @type {boolean}
*/
Object.defineProperty(this, 'showWhenPrinted', {
enumerable: true,
configurable: true,
get: function () {
return Boolean(getBitForPdf(_F, 3));
},
set: function (value) {
if (Boolean(value) === true) {
this.F = setBitForPdf(_F, 3);
} else {
this.F = clearBitForPdf(_F, 3);
}
}
});
var _Ff = 0;
Object.defineProperty(this, 'Ff', {
enumerable: false,
configurable: false,
get: function () {
return _Ff;
},
set: function (value) {
if (!isNaN(value)) {
_Ff = value;
} else {
throw new Error('Invalid value "' + value + '" for attribute Ff supplied.');
}
}
});
var _Rect = [];
Object.defineProperty(this, 'Rect', {
enumerable: false,
configurable: false,
get: function () {
if (_Rect.length === 0) {
return;
}
return _Rect;
},
set: function (value) {
if (typeof value !== "undefined") {
_Rect = value;
} else {
_Rect = [];
}
}
});
/**
* The x-position of the field.
*
* @name AcroFormField#x
* @default null
* @type {number}
*/
Object.defineProperty(this, 'x', {
enumerable: true,
configurable: true,
get: function () {
if (!_Rect || isNaN(_Rect[0])) {
return 0;
}
return antiScale(_Rect[0]);
},
set: function (value) {
_Rect[0] = scale(value);
}
});
/**
* The y-position of the field.
*
* @name AcroFormField#y
* @default null
* @type {number}
*/
Object.defineProperty(this, 'y', {
enumerable: true,
configurable: true,
get: function () {
if (!_Rect || isNaN(_Rect[1])) {
return 0;
}
return antiScale(_Rect[1]);
},
set: function (value) {
_Rect[1] = scale(value);
}
});
/**
* The width of the field.
*
* @name AcroFormField#width
* @default null
* @type {number}
*/
Object.defineProperty(this, 'width', {
enumerable: true,
configurable: true,
get: function () {
if (!_Rect || isNaN(_Rect[2])) {