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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>plugins/context2d.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">
</head>
<body>
<input type="checkbox" id="nav-trigger" class="nav-trigger" />
<label for="nav-trigger" class="navicon-button x">
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<nav>
<h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="jsPDF.html">jsPDF</a></li></ul><h3>Global</h3><ul><li><a href="global.html#addFont">addFont</a></li><li><a href="global.html#addHTML">addHTML</a></li><li><a href="global.html#addMetadata">addMetadata</a></li><li><a href="global.html#addPage">addPage</a></li><li><a href="global.html#autoPrint">autoPrint</a></li><li><a href="global.html#CapJoinStyles">CapJoinStyles</a></li><li><a href="global.html#circle">circle</a></li><li><a href="global.html#ellipse">ellipse</a></li><li><a href="global.html#getFontList">getFontList</a></li><li><a href="global.html#lines">lines</a></li><li><a href="global.html#lstext">lstext</a></li><li><a href="global.html#output">output</a></li><li><a href="global.html#rect">rect</a></li><li><a href="global.html#roundedRect">roundedRect</a></li><li><a href="global.html#save">save</a></li><li><a href="global.html#setDisplayMode">setDisplayMode</a></li><li><a href="global.html#setDrawColor">setDrawColor</a></li><li><a href="global.html#setFillColor">setFillColor</a></li><li><a href="global.html#setFont">setFont</a></li><li><a href="global.html#setFontSize">setFontSize</a></li><li><a href="global.html#setFontStyle">setFontStyle</a></li><li><a href="global.html#setLineCap">setLineCap</a></li><li><a href="global.html#setLineJoin">setLineJoin</a></li><li><a href="global.html#setLineWidth">setLineWidth</a></li><li><a href="global.html#setPage">setPage</a></li><li><a href="global.html#setProperties">setProperties</a></li><li><a href="global.html#setTextColor">setTextColor</a></li><li><a href="global.html#text">text</a></li><li><a href="global.html#triangle">triangle</a></li><li><a href="global.html#viewerPreferences">viewerPreferences</a></li></ul>
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<div id="main">
<h1 class="page-title">plugins/context2d.js</h1>
<section>
<article>
<pre class="prettyprint source linenums"><code>/**
* jsPDF Context2D PlugIn Copyright (c) 2014 Steven Spungin (TwelveTone LLC) steven@twelvetone.tv
*
* Licensed under the MIT License. http://opensource.org/licenses/mit-license
*/
/**
* This plugin mimics the HTML5 Canvas's context2d.
*
* The goal is to provide a way for current canvas implementations to print directly to a PDF.
*/
/**
* TODO implement stroke opacity (refactor from fill() method )
* TODO transform angle and radii parameters
*/
/**
* require('jspdf.js'); require('lib/css_colors.js');
*/
(function (jsPDFAPI) {
'use strict';
jsPDFAPI.events.push([
'initialized', function () {
this.context2d.pdf = this;
this.context2d.internal.pdf = this;
this.context2d.ctx = new context();
this.context2d.ctxStack = [];
this.context2d.path = [];
}
]);
jsPDFAPI.context2d = {
pageWrapXEnabled: false,
pageWrapYEnabled: false,
pageWrapX: 9999999,
pageWrapY: 9999999,
ctx: new context(),
f2: function (number) {
return number.toFixed(2);
},
fillRect: function (x, y, w, h) {
if (this._isFillTransparent()) {
return;
}
x = this._wrapX(x);
y = this._wrapY(y);
var xRect = this._matrix_map_rect(this.ctx._transform, {x: x, y: y, w: w, h: h});
this.pdf.rect(xRect.x, xRect.y, xRect.w, xRect.h, "f");
},
strokeRect: function (x, y, w, h) {
if (this._isStrokeTransparent()) {
return;
}
x = this._wrapX(x);
y = this._wrapY(y);
var xRect = this._matrix_map_rect(this.ctx._transform, {x: x, y: y, w: w, h: h});
this.pdf.rect(xRect.x, xRect.y, xRect.w, xRect.h, "s");
},
/**
* We cannot clear PDF commands that were already written to PDF, so we use white instead. <br />
* As a special case, read a special flag (ignoreClearRect) and do nothing if it is set.
* This results in all calls to clearRect() to do nothing, and keep the canvas transparent.
* This flag is stored in the save/restore context and is managed the same way as other drawing states.
* @param x
* @param y
* @param w
* @param h
*/
clearRect: function (x, y, w, h) {
if (this.ctx.ignoreClearRect) {
return;
}
x = this._wrapX(x);
y = this._wrapY(y);
var xRect = this._matrix_map_rect(this.ctx._transform, {x: x, y: y, w: w, h: h});
this.save();
this.setFillStyle('#ffffff');
//TODO This is hack to fill with white.
this.pdf.rect(xRect.x, xRect.y, xRect.w, xRect.h, "f");
this.restore();
},
save: function () {
this.ctx._fontSize = this.pdf.internal.getFontSize();
var ctx = new context();
ctx.copy(this.ctx);
this.ctxStack.push(this.ctx);
this.ctx = ctx;
},
restore: function () {
this.ctx = this.ctxStack.pop();
this.setFillStyle(this.ctx.fillStyle);
this.setStrokeStyle(this.ctx.strokeStyle);
this.setFont(this.ctx.font);
this.pdf.setFontSize(this.ctx._fontSize);
this.setLineCap(this.ctx.lineCap);
this.setLineWidth(this.ctx.lineWidth);
this.setLineJoin(this.ctx.lineJoin);
},
rect: function (x, y, w, h) {
this.moveTo(x, y);
this.lineTo(x + w, y);
this.lineTo(x + w, y + h);
this.lineTo(x, y + h);
this.lineTo(x, y); //TODO not needed
this.closePath();
},
beginPath: function () {
this.path = [];
},
closePath: function () {
this.path.push({
type: 'close'
});
},
_getRGBA: function (style) {
// get the decimal values of r, g, and b;
var r, g, b, a;
if (!style) {
return {r: 0, g: 0, b: 0, a: 0, style};
}
if (this.internal.rxTransparent.test(style)) {
r = 0;
g = 0;
b = 0;
a = 0;
}
else {
var m = this.internal.rxRgb.exec(style);
if (m != null) {
r = parseInt(m[1]);
g = parseInt(m[2]);
b = parseInt(m[3]);
a = 1;
} else {
m = this.internal.rxRgba.exec(style);
if (m != null) {
r = parseInt(m[1]);
g = parseInt(m[2]);
b = parseInt(m[3]);
a = parseFloat(m[4]);
} else {
a = 1;
if (style.charAt(0) != '#') {
style = CssColors.colorNameToHex(style);
if (!style) {
style = '#000000';
}
} else {
}
if (style.length === 4) {
r = style.substring(1, 2);
r += r;
g = style.substring(2, 3);
g += g;
b = style.substring(3, 4);
b += b;
} else {
r = style.substring(1, 3);
g = style.substring(3, 5);
b = style.substring(5, 7);
}
r = parseInt(r, 16);
g = parseInt(g, 16);
b = parseInt(b, 16);
}
}
}
return {r, g, b, a, style};
},
setFillStyle: function (style) {
var rgba = this._getRGBA(style);
this.ctx.fillStyle = style;
this.ctx._isFillTransparent = (rgba.a === 0);
this.ctx._fillOpacity = rgba.a;
this.pdf.setFillColor(rgba.r, rgba.g, rgba.b, {
a: rgba.a
});
this.pdf.setTextColor(rgba.r, rgba.g, rgba.b, {
a: rgba.a
});
},
setStrokeStyle: function (style) {
var rgba = this._getRGBA(style);
this.ctx.strokeStyle = rgba.style;
this.ctx._isStrokeTransparent = (rgba.a === 0);
this.ctx._strokeOpacity = rgba.a;
//TODO jsPDF to handle rgba
if (rgba.a === 0) {
this.pdf.setDrawColor(255, 255, 255);
}
else if (rgba.a === 1) {
this.pdf.setDrawColor(rgba.r, rgba.g, rgba.b);
} else {
//this.pdf.setDrawColor(rgba.r, rgba.g, rgba.b, {a: rgba.a});
this.pdf.setDrawColor(rgba.r, rgba.g, rgba.b);
}
},
fillText: function (text, x, y, maxWidth) {
if (this._isFillTransparent()) {
return;
}
x = this._wrapX(x);
y = this._wrapY(y);
var xpt = this._matrix_map_point(this.ctx._transform, [x, y]);
x = xpt[0];
y = xpt[1];
var rads = this._matrix_rotation(this.ctx._transform);
var degs = rads * 57.2958;
//TODO only push the clip if it has not been applied to the current PDF context
if (this.ctx._clip_path.length > 0) {
var lines;
if (window.outIntercept) {
lines = window.outIntercept.type === 'group' ? window.outIntercept.stream : window.outIntercept;
} else {
lines = this.internal.getCurrentPage();
}
lines.push("q");
var origPath = this.path;
this.path = this.ctx._clip_path;
this.ctx._clip_path = [];
this._fill(null, true);
this.ctx._clip_path = this.path;
this.path = origPath;
}
// We only use X axis as scale hint
var scale = 1;
try {
scale = this._matrix_decompose(this._getTransform()).scale[0];
} catch (e) {
console.warn(e);
}
// In some cases the transform was very small (5.715760606202283e-17). Most likely a canvg rounding error.
if (scale < .01) {
this.pdf.text(text, x, this._getBaseline(y), null, degs);
}
else {
var oldSize = this.pdf.internal.getFontSize();
this.pdf.setFontSize(oldSize * scale);
this.pdf.text(text, x, this._getBaseline(y), null, degs);
this.pdf.setFontSize(oldSize);
}
if (this.ctx._clip_path.length > 0) {
lines.push('Q');
}
},
strokeText: function (text, x, y, maxWidth) {
if (this._isStrokeTransparent()) {
return;
}
x = this._wrapX(x);
y = this._wrapY(y);
var xpt = this._matrix_map_point(this.ctx._transform, [x, y]);
x = xpt[0];
y = xpt[1];
var rads = this._matrix_rotation(this.ctx._transform);
var degs = rads * 57.2958;
//TODO only push the clip if it has not been applied to the current PDF context
if (this.ctx._clip_path.length > 0) {
var lines;
if (window.outIntercept) {
lines = window.outIntercept.type === 'group' ? window.outIntercept.stream : window.outIntercept;
} else {
lines = this.internal.getCurrentPage();
}
lines.push("q");
var origPath = this.path;
this.path = this.ctx._clip_path;
this.ctx._clip_path = [];
this._fill(null, true);
this.ctx._clip_path = this.path;
this.path = origPath;
}
var scale = 1;
// We only use the X axis as scale hint
try {
scale = this._matrix_decompose(this._getTransform()).scale[0];
} catch (e) {
console.warn(e);
}
if (scale === 1) {
this.pdf.text(text, x, this._getBaseline(y), {
stroke: true
}, degs);
}
else {
var oldSize = this.pdf.internal.getFontSize();
this.pdf.setFontSize(oldSize * scale);
this.pdf.text(text, x, this._getBaseline(y), {
stroke: true
}, degs);
this.pdf.setFontSize(oldSize);
}
if (this.ctx._clip_path.length > 0) {
lines.push('Q');
}
},
setFont: function (font) {
this.ctx.font = font;
//var rx = /\s*(\w+)\s+(\w+)\s+(\w+)\s+([\d\.]+)(px|pt|em)\s+["']?(\w+)['"]?/;
var rx = /\s*(\w+)\s+(\w+)\s+(\w+)\s+([\d\.]+)(px|pt|em)\s+(.*)?/;
m = rx.exec(font);
if (m != null) {
var fontStyle = m[1];
var fontVariant = m[2];
var fontWeight = m[3];
var fontSize = m[4];
var fontSizeUnit = m[5];
var fontFamily = m[6];
if ('px' === fontSizeUnit) {
fontSize = Math.floor(parseFloat(fontSize));
// fontSize = fontSize * 1.25;
} else if ('em' === fontSizeUnit) {
fontSize = Math.floor(parseFloat(fontSize) * this.pdf.getFontSize());
} else {
fontSize = Math.floor(parseFloat(fontSize));
}
this.pdf.setFontSize(fontSize);
if (fontWeight === 'bold' || fontWeight === '700') {
this.pdf.setFontStyle('bold');
} else {
if (fontStyle === 'italic') {
this.pdf.setFontStyle('italic');
} else {
this.pdf.setFontStyle('normal');
}
}
var name = fontFamily;
var parts = name.toLowerCase().split(/\s*,\s*/);
var jsPdfFontName;
if (parts.indexOf('arial') != -1) {
jsPdfFontName = 'Arial';
}
else if (parts.indexOf('verdana') != -1) {
jsPdfFontName = 'Verdana';
}
else if (parts.indexOf('helvetica') != -1) {
jsPdfFontName = 'Helvetica';
}
else if (parts.indexOf('sans-serif') != -1) {
jsPdfFontName = 'sans-serif';
}
else if (parts.indexOf('fixed') != -1) {
jsPdfFontName = 'Fixed';
}
else if (parts.indexOf('monospace') != -1) {
jsPdfFontName = 'Monospace';
}
else if (parts.indexOf('terminal') != -1) {
jsPdfFontName = 'Terminal';
}
else if (parts.indexOf('courier') != -1) {
jsPdfFontName = 'Courier';
}
else if (parts.indexOf('times') != -1) {
jsPdfFontName = 'Times';
}
else if (parts.indexOf('cursive') != -1) {
jsPdfFontName = 'Cursive';
}
else if (parts.indexOf('fantasy') != -1) {
jsPdfFontName = 'Fantasy';
}
else if (parts.indexOf('serif') != -1) {
jsPdfFontName = 'Serif';
}
else {
jsPdfFontName = 'Serif';
}
//TODO check more cases
var style;
if ('bold' === fontWeight) {
style = 'bold';
} else {
style = 'normal';
}
this.pdf.setFont(jsPdfFontName, style);
} else {
var rx = /\s*(\d+)(pt|px|em)\s+([\w "]+)\s*([\w "]+)?/;
var m = rx.exec(font);
if (m != null) {
var size = m[1];
var unit = m[2];
var name = m[3];
var style = m[4];
if (!style) {
style = 'normal';
}
if ('em' === fontSizeUnit) {
size = Math.floor(parseFloat(fontSize) * this.pdf.getFontSize());
} else {
size = Math.floor(parseFloat(size));
}
this.pdf.setFontSize(size);
this.pdf.setFont(name, style);
}
}
},
setTextBaseline: function (baseline) {
this.ctx.textBaseline = baseline;
},
getTextBaseline: function () {
return this.ctx.textBaseline;
},
//TODO implement textAlign
setTextAlign: function (align) {
this.ctx.textAlign = align;
},
getTextAlign: function () {
return this.ctx.textAlign;
},
setLineWidth: function (width) {
this.ctx.lineWidth = width;
this.pdf.setLineWidth(width);
},
setLineCap: function (style) {
this.ctx.lineCap = style;
this.pdf.setLineCap(style);
},
setLineJoin: function (style) {
this.ctx.lineJoin = style;
this.pdf.setLineJoin(style);
},
moveTo: function (x, y) {
x = this._wrapX(x);
y = this._wrapY(y);
var xpt = this._matrix_map_point(this.ctx._transform, [x, y]);
x = xpt[0];
y = xpt[1];
var obj = {
type: 'mt',
x: x,
y: y
};
this.path.push(obj);
},
_wrapX: function (x) {
if (this.pageWrapXEnabled) {
return x % this.pageWrapX;
} else {
return x;
}
},
_wrapY: function (y) {
if (this.pageWrapYEnabled) {
this._gotoPage(this._page(y));
return (y - this.lastBreak) % this.pageWrapY;
} else {
return y;
}
},
transform: function (a, b, c, d, e, f) {
//TODO apply to current transformation instead of replacing
this.ctx._transform = [a, b, c, d, e, f];
},
setTransform: function (a, b, c, d, e, f) {
this.ctx._transform = [a, b, c, d, e, f];
},
_getTransform: function () {
return this.ctx._transform;
},
lastBreak: 0,
// Y Position of page breaks.
pageBreaks: [],
// returns: One-based Page Number
// Should only be used if pageWrapYEnabled is true
_page: function (y) {
if (this.pageWrapYEnabled) {
this.lastBreak = 0;
var manualBreaks = 0;
var autoBreaks = 0;
for (var i = 0; i < this.pageBreaks.length; i++) {
if (y >= this.pageBreaks[i]) {
manualBreaks++;
if (this.lastBreak === 0) {
autoBreaks++;
}
var spaceBetweenLastBreak = this.pageBreaks[i] - this.lastBreak;
this.lastBreak = this.pageBreaks[i];
var pagesSinceLastBreak = Math.floor(spaceBetweenLastBreak / this.pageWrapY);
autoBreaks += pagesSinceLastBreak;
}
}
if (this.lastBreak === 0) {
var pagesSinceLastBreak = Math.floor(y / this.pageWrapY) + 1;
autoBreaks += pagesSinceLastBreak;
}
return autoBreaks + manualBreaks;
} else {
return this.pdf.internal.getCurrentPageInfo().pageNumber;
}
},
_gotoPage: function (pageOneBased) {
// This is a stub to be overriden if needed
},
lineTo: function (x, y) {
x = this._wrapX(x);
y = this._wrapY(y);
var xpt = this._matrix_map_point(this.ctx._transform, [x, y]);
x = xpt[0];
y = xpt[1];
var obj = {
type: 'lt',
x: x,
y: y
};
this.path.push(obj);
},
bezierCurveTo: function (x1, y1, x2, y2, x, y) {
x1 = this._wrapX(x1);
y1 = this._wrapY(y1);
x2 = this._wrapX(x2);
y2 = this._wrapY(y2);
x = this._wrapX(x);
y = this._wrapY(y);
var xpt;
xpt = this._matrix_map_point(this.ctx._transform, [x, y]);
x = xpt[0];
y = xpt[1];
xpt = this._matrix_map_point(this.ctx._transform, [x1, y1]);
x1 = xpt[0];
y1 = xpt[1];
xpt = this._matrix_map_point(this.ctx._transform, [x2, y2]);
x2 = xpt[0];
y2 = xpt[1];
var obj = {
type: 'bct',
x1: x1,
y1: y1,
x2: x2,
y2: y2,
x: x,
y: y
};
this.path.push(obj);
},
quadraticCurveTo: function (x1, y1, x, y) {
x1 = this._wrapX(x1);
y1 = this._wrapY(y1);
x = this._wrapX(x);
y = this._wrapY(y);
var xpt;
xpt = this._matrix_map_point(this.ctx._transform, [x, y]);
x = xpt[0];
y = xpt[1];
xpt = this._matrix_map_point(this.ctx._transform, [x1, y1]);
x1 = xpt[0];
y1 = xpt[1];
var obj = {
type: 'qct',
x1: x1,
y1: y1,
x: x,
y: y
};
this.path.push(obj);
},
arc: function (x, y, radius, startAngle, endAngle, anticlockwise) {
x = this._wrapX(x);
y = this._wrapY(y);
if (!this._matrix_is_identity(this.ctx._transform)) {
var xpt = this._matrix_map_point(this.ctx._transform, [x, y]);
x = xpt[0];
y = xpt[1];
var x_radPt0 = this._matrix_map_point(this.ctx._transform, [0, 0]);
var x_radPt = this._matrix_map_point(this.ctx._transform, [0, radius]);
radius = Math.sqrt(Math.pow(x_radPt[0] - x_radPt0[0], 2) + Math.pow(x_radPt[1] - x_radPt0[1], 2));
//TODO angles need to be transformed
}
var obj = {
type: 'arc',
x: x,
y: y,
radius: radius,
startAngle: startAngle,
endAngle: endAngle,
anticlockwise: anticlockwise
};
this.path.push(obj);
},
drawImage: function (img, x, y, w, h, x2, y2, w2, h2) {
if (x2 !== undefined) {
x = x2;
y = y2;
w = w2;
h = h2;
}
x = this._wrapX(x);
y = this._wrapY(y);
var xRect = this._matrix_map_rect(this.ctx._transform, {x: x, y: y, w: w, h: h});
var xRect2 = this._matrix_map_rect(this.ctx._transform, {x: x2, y: y2, w: w2, h: h2});
// TODO implement source clipping and image scaling
var format;
var rx = /data:image\/(\w+).*/i;
var m = rx.exec(img);
if (m != null) {
format = m[1];
} else {
// format = "jpeg";
format = "png";
}
this.pdf.addImage(img, format, xRect.x, xRect.y, xRect.w, xRect.h);
},
/**
* Multiply the first matrix by the second
* @param m1
* @param m2
* @returns {*[]}
* @private
*/
_matrix_multiply: function (m2, m1) {
var sx = m1[0];
var shy = m1[1];
var shx = m1[2];
var sy = m1[3];
var tx = m1[4];
var ty = m1[5];
var t0 = sx * m2[0] + shy * m2[2];
var t2 = shx * m2[0] + sy * m2[2];
var t4 = tx * m2[0] + ty * m2[2] + m2[4];
shy = sx * m2[1] + shy * m2[3];
sy = shx * m2[1] + sy * m2[3];
ty = tx * m2[1] + ty * m2[3] + m2[5];
sx = t0;
shx = t2;
tx = t4;
return [sx, shy, shx, sy, tx, ty];
},
_matrix_rotation: function (m) {
return Math.atan2(m[2], m[0]);
},
_matrix_decompose: function (matrix) {
var a = matrix[0];
var b = matrix[1];
var c = matrix[2];
var d = matrix[3];
var scaleX = Math.sqrt(a * a + b * b);
a /= scaleX;
b /= scaleX;
var shear = a * c + b * d;
c -= a * shear;
d -= b * shear;
var scaleY = Math.sqrt(c * c + d * d);
c /= scaleY;
d /= scaleY;
shear /= scaleY;
if (a * d < b * c) {
a = -a;
b = -b;
shear = -shear;
scaleX = -scaleX;
}
return {
scale: [scaleX, 0, 0, scaleY, 0, 0],
translate: [1, 0, 0, 1, matrix[4], matrix[5]],
rotate: [a, b, -b, a, 0, 0],
skew: [1, 0, shear, 1, 0, 0]
};
},
_matrix_map_point: function (m1, pt) {
var sx = m1[0];
var shy = m1[1];
var shx = m1[2];
var sy = m1[3];
var tx = m1[4];
var ty = m1[5];
var px = pt[0];
var py = pt[1];
var x = px * sx + py * shx + tx;
var y = px * shy + py * sy + ty;
return [x, y];
},
_matrix_map_point_obj: function (m1, pt) {
var xpt = this._matrix_map_point(m1, [pt.x, pt.y]);
return {x: xpt[0], y: xpt[1]};
},
_matrix_map_rect: function (m1, rect) {
var p1 = this._matrix_map_point(m1, [rect.x, rect.y]);
var p2 = this._matrix_map_point(m1, [rect.x + rect.w, rect.y + rect.h]);
return {x: p1[0], y: p1[1], w: p2[0] - p1[0], h: p2[1] - p1[1]};
},
_matrix_is_identity: function (m1) {
if (m1[0] != 1) {
return false;
}
if (m1[1] != 0) {
return false;
}
if (m1[2] != 0) {
return false;
}
if (m1[3] != 1) {
return false;
}
if (m1[4] != 0) {
return false;
}
if (m1[5] != 0) {
return false;
}
return true;
},
rotate: function (angle) {
var matrix = [Math.cos(angle), Math.sin(angle), -Math.sin(angle), Math.cos(angle), 0.0, 0.0];
this.ctx._transform = this._matrix_multiply(this.ctx._transform, matrix);
},
scale: function (sx, sy) {
var matrix = [sx, 0.0, 0.0, sy, 0.0, 0.0];
this.ctx._transform = this._matrix_multiply(this.ctx._transform, matrix);
},
translate: function (x, y) {
var matrix = [1.0, 0.0, 0.0, 1.0, x, y];
this.ctx._transform = this._matrix_multiply(this.ctx._transform, matrix);
},
stroke: function () {
if (this.ctx._clip_path.length > 0) {
var lines;
if (window.outIntercept) {
lines = window.outIntercept.type === 'group' ? window.outIntercept.stream : window.outIntercept;
} else {
lines = this.internal.getCurrentPage();
}
lines.push("q");
var origPath = this.path;
this.path = this.ctx._clip_path;
this.ctx._clip_path = [];
this._stroke(true);
this.ctx._clip_path = this.path;
this.path = origPath;
this._stroke(false);
lines.push("Q");
} else {
this._stroke(false);
}
},
_stroke: function (isClip) {
if (!isClip && this._isStrokeTransparent()) {
return;
}
//TODO opacity
var moves = [];
var closed = false;
var xPath = this.path;
for (var i = 0; i < xPath.length; i++) {
var pt = xPath[i];
switch (pt.type) {
case 'mt':
moves.push({start: pt, deltas: [], abs: []});
break;
case 'lt':
var delta = [
pt.x - xPath[i - 1].x, pt.y - xPath[i - 1].y
];
moves[moves.length - 1].deltas.push(delta);
moves[moves.length - 1].abs.push(pt);
break;
case 'bct':
var delta = [
pt.x1 - xPath[i - 1].x, pt.y1 - xPath[i - 1].y,
pt.x2 - xPath[i - 1].x, pt.y2 - xPath[i - 1].y,
pt.x - xPath[i - 1].x, pt.y - xPath[i - 1].y
];
moves[moves.length - 1].deltas.push(delta);
break;
case 'qct':
// convert to bezier
var x1 = xPath[i - 1].x + 2.0 / 3.0 * (pt.x1 - xPath[i - 1].x);
var y1 = xPath[i - 1].y + 2.0 / 3.0 * (pt.y1 - xPath[i - 1].y);
var x2 = pt.x + 2.0 / 3.0 * (pt.x1 - pt.x);
var y2 = pt.y + 2.0 / 3.0 * (pt.y1 - pt.y);
var x3 = pt.x;
var y3 = pt.y;
var delta = [
x1 - xPath[i - 1].x, y1 - xPath[i - 1].y,
x2 - xPath[i - 1].x, y2 - xPath[i - 1].y,
x3 - xPath[i - 1].x, y3 - xPath[i - 1].y
];
moves[moves.length - 1].deltas.push(delta);
break;
case 'arc':
//TODO this was hack to avoid out-of-bounds issue
// No move-to before drawing the arc
if (moves.length == 0) {
moves.push({start: {x: 0, y: 0}, deltas: [], abs: []});
}
moves[moves.length - 1].arc = true;
moves[moves.length - 1].abs.push(pt);
break;
case 'close':
closed = true;
break;
}
}
for (var i = 0; i < moves.length; i++) {
var style;
if (i == moves.length - 1) {
style = 's';
} else {
style = null;
}
if (moves[i].arc) {
var arcs = moves[i].abs;
for (var ii = 0; ii < arcs.length; ii++) {
var arc = arcs[ii];
var start = arc.startAngle * 360 / (2 * Math.PI);
var end = arc.endAngle * 360 / (2 * Math.PI);
var x = arc.x;
var y = arc.y;
this.internal.arc2(this, x, y, arc.radius, start, end, arc.anticlockwise, style, isClip);
}
} else {
var x = moves[i].start.x;
var y = moves[i].start.y;
if (!isClip) {
this.pdf.lines(moves[i].deltas, x, y, null, style);
} else {
this.pdf.lines(moves[i].deltas, x, y, null, null);
this.pdf.clip_fixed();
}
}
}
},
_isFillTransparent: function () {
return this.ctx._isFillTransparent || this.globalAlpha == 0;
},
_isStrokeTransparent: function () {
return this.ctx._isStrokeTransparent || this.globalAlpha == 0;
},
fill: function (fillRule) { //evenodd or nonzero (default)
if (this.ctx._clip_path.length > 0) {
var lines;
if (window.outIntercept) {
lines = window.outIntercept.type === 'group' ? window.outIntercept.stream : window.outIntercept;
} else {
lines = this.internal.getCurrentPage();
}
lines.push("q");
var origPath = this.path;