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Zeno Zeng 2021-06-10 20:39:09 +08:00
parent b6ef900d21
commit e0804a60cd
31 changed files with 135 additions and 1574 deletions
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3
.gitignore vendored
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node_modules
node_modules
dist

2
README.md
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@ -5,7 +5,7 @@ A maintained fork of [gliffy's canvas2svg](https://github.com/gliffy/canvas2svg)
## Demo
http://zenozeng.github.io/svgcanvas/test/playground.html
https://zenozeng.github.io/svgcanvas/test/
## How it works
We create a mock 2d canvas context. Use the canvas context like you would on a normal canvas. As you call methods, we

2
package.json
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@ -4,7 +4,7 @@
"description": "svgcanvas",
"main": "dist/svgcanvas.js",
"scripts": {
"build": "rollup index.js -o dist/svgcanvas.js -f cjs",
"build": "rollup index.js -o dist/svgcanvas.js -f cjs && rollup test/index.js -o dist/test.js -f iife",
"prepublishOnly": "npm run build"
},
"keywords": [

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test/css/normalize.css vendored
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/*! normalize.css v3.0.2 | MIT License | git.io/normalize */
/**
* 1. Set default font family to sans-serif.
* 2. Prevent iOS text size adjust after orientation change, without disabling
* user zoom.
*/
html {
font-family: sans-serif; /* 1 */
-ms-text-size-adjust: 100%; /* 2 */
-webkit-text-size-adjust: 100%; /* 2 */
}
/**
* Remove default margin.
*/
body {
margin: 0;
}
/* HTML5 display definitions
========================================================================== */
/**
* Correct `block` display not defined for any HTML5 element in IE 8/9.
* Correct `block` display not defined for `details` or `summary` in IE 10/11
* and Firefox.
* Correct `block` display not defined for `main` in IE 11.
*/
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
menu,
nav,
section,
summary {
display: block;
}
/**
* 1. Correct `inline-block` display not defined in IE 8/9.
* 2. Normalize vertical alignment of `progress` in Chrome, Firefox, and Opera.
*/
audio,
canvas,
progress,
video {
display: inline-block; /* 1 */
vertical-align: baseline; /* 2 */
}
/**
* Prevent modern browsers from displaying `audio` without controls.
* Remove excess height in iOS 5 devices.
*/
audio:not([controls]) {
display: none;
height: 0;
}
/**
* Address `[hidden]` styling not present in IE 8/9/10.
* Hide the `template` element in IE 8/9/11, Safari, and Firefox < 22.
*/
[hidden],
template {
display: none;
}
/* Links
========================================================================== */
/**
* Remove the gray background color from active links in IE 10.
*/
a {
background-color: transparent;
}
/**
* Improve readability when focused and also mouse hovered in all browsers.
*/
a:active,
a:hover {
outline: 0;
}
/* Text-level semantics
========================================================================== */
/**
* Address styling not present in IE 8/9/10/11, Safari, and Chrome.
*/
abbr[title] {
border-bottom: 1px dotted;
}
/**
* Address style set to `bolder` in Firefox 4+, Safari, and Chrome.
*/
b,
strong {
font-weight: bold;
}
/**
* Address styling not present in Safari and Chrome.
*/
dfn {
font-style: italic;
}
/**
* Address variable `h1` font-size and margin within `section` and `article`
* contexts in Firefox 4+, Safari, and Chrome.
*/
h1 {
font-size: 2em;
margin: 0.67em 0;
}
/**
* Address styling not present in IE 8/9.
*/
mark {
background: #ff0;
color: #000;
}
/**
* Address inconsistent and variable font size in all browsers.
*/
small {
font-size: 80%;
}
/**
* Prevent `sub` and `sup` affecting `line-height` in all browsers.
*/
sub,
sup {
font-size: 75%;
line-height: 0;
position: relative;
vertical-align: baseline;
}
sup {
top: -0.5em;
}
sub {
bottom: -0.25em;
}
/* Embedded content
========================================================================== */
/**
* Remove border when inside `a` element in IE 8/9/10.
*/
img {
border: 0;
}
/**
* Correct overflow not hidden in IE 9/10/11.
*/
svg:not(:root) {
overflow: hidden;
}
/* Grouping content
========================================================================== */
/**
* Address margin not present in IE 8/9 and Safari.
*/
figure {
margin: 1em 40px;
}
/**
* Address differences between Firefox and other browsers.
*/
hr {
-moz-box-sizing: content-box;
box-sizing: content-box;
height: 0;
}
/**
* Contain overflow in all browsers.
*/
pre {
overflow: auto;
}
/**
* Address odd `em`-unit font size rendering in all browsers.
*/
code,
kbd,
pre,
samp {
font-family: monospace, monospace;
font-size: 1em;
}
/* Forms
========================================================================== */
/**
* Known limitation: by default, Chrome and Safari on OS X allow very limited
* styling of `select`, unless a `border` property is set.
*/
/**
* 1. Correct color not being inherited.
* Known issue: affects color of disabled elements.
* 2. Correct font properties not being inherited.
* 3. Address margins set differently in Firefox 4+, Safari, and Chrome.
*/
button,
input,
optgroup,
select,
textarea {
color: inherit; /* 1 */
font: inherit; /* 2 */
margin: 0; /* 3 */
}
/**
* Address `overflow` set to `hidden` in IE 8/9/10/11.
*/
button {
overflow: visible;
}
/**
* Address inconsistent `text-transform` inheritance for `button` and `select`.
* All other form control elements do not inherit `text-transform` values.
* Correct `button` style inheritance in Firefox, IE 8/9/10/11, and Opera.
* Correct `select` style inheritance in Firefox.
*/
button,
select {
text-transform: none;
}
/**
* 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
* and `video` controls.
* 2. Correct inability to style clickable `input` types in iOS.
* 3. Improve usability and consistency of cursor style between image-type
* `input` and others.
*/
button,
html input[type="button"], /* 1 */
input[type="reset"],
input[type="submit"] {
-webkit-appearance: button; /* 2 */
cursor: pointer; /* 3 */
}
/**
* Re-set default cursor for disabled elements.
*/
button[disabled],
html input[disabled] {
cursor: default;
}
/**
* Remove inner padding and border in Firefox 4+.
*/
button::-moz-focus-inner,
input::-moz-focus-inner {
border: 0;
padding: 0;
}
/**
* Address Firefox 4+ setting `line-height` on `input` using `!important` in
* the UA stylesheet.
*/
input {
line-height: normal;
}
/**
* It's recommended that you don't attempt to style these elements.
* Firefox's implementation doesn't respect box-sizing, padding, or width.
*
* 1. Address box sizing set to `content-box` in IE 8/9/10.
* 2. Remove excess padding in IE 8/9/10.
*/
input[type="checkbox"],
input[type="radio"] {
box-sizing: border-box; /* 1 */
padding: 0; /* 2 */
}
/**
* Fix the cursor style for Chrome's increment/decrement buttons. For certain
* `font-size` values of the `input`, it causes the cursor style of the
* decrement button to change from `default` to `text`.
*/
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
height: auto;
}
/**
* 1. Address `appearance` set to `searchfield` in Safari and Chrome.
* 2. Address `box-sizing` set to `border-box` in Safari and Chrome
* (include `-moz` to future-proof).
*/
input[type="search"] {
-webkit-appearance: textfield; /* 1 */
-moz-box-sizing: content-box;
-webkit-box-sizing: content-box; /* 2 */
box-sizing: content-box;
}
/**
* Remove inner padding and search cancel button in Safari and Chrome on OS X.
* Safari (but not Chrome) clips the cancel button when the search input has
* padding (and `textfield` appearance).
*/
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration {
-webkit-appearance: none;
}
/**
* Define consistent border, margin, and padding.
*/
fieldset {
border: 1px solid #c0c0c0;
margin: 0 2px;
padding: 0.35em 0.625em 0.75em;
}
/**
* 1. Correct `color` not being inherited in IE 8/9/10/11.
* 2. Remove padding so people aren't caught out if they zero out fieldsets.
*/
legend {
border: 0; /* 1 */
padding: 0; /* 2 */
}
/**
* Remove default vertical scrollbar in IE 8/9/10/11.
*/
textarea {
overflow: auto;
}
/**
* Don't inherit the `font-weight` (applied by a rule above).
* NOTE: the default cannot safely be changed in Chrome and Safari on OS X.
*/
optgroup {
font-weight: bold;
}
/* Tables
========================================================================== */
/**
* Remove most spacing between table cells.
*/
table {
border-collapse: collapse;
border-spacing: 0;
}
td,
th {
padding: 0;
}

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test/css/playground.css
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@ -1,15 +0,0 @@
#canvas,
#svg {
border: 1px solid #CCC;
}
#svg {
width: 460px;
height: 460px;
overflow: hidden;
}
.container,
.try {
margin-top: 20px;
}

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test/css/skeleton.css vendored
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/*
* Skeleton V2.0.4
* Copyright 2014, Dave Gamache
* www.getskeleton.com
* Free to use under the MIT license.
* http://www.opensource.org/licenses/mit-license.php
* 12/29/2014
*/
/* Table of contents
––––––––––––––––––––––––––––––––––––––––––––––––––
- Grid
- Base Styles
- Typography
- Links
- Buttons
- Forms
- Lists
- Code
- Tables
- Spacing
- Utilities
- Clearing
- Media Queries
*/
/* Grid
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.container {
position: relative;
width: 100%;
max-width: 960px;
margin: 0 auto;
padding: 0 20px;
box-sizing: border-box; }
.column,
.columns {
width: 100%;
float: left;
box-sizing: border-box; }
/* For devices larger than 400px */
@media (min-width: 400px) {
.container {
width: 85%;
padding: 0; }
}
/* For devices larger than 550px */
@media (min-width: 550px) {
.container {
width: 80%; }
.column,
.columns {
margin-left: 4%; }
.column:first-child,
.columns:first-child {
margin-left: 0; }
.one.column,
.one.columns { width: 4.66666666667%; }
.two.columns { width: 13.3333333333%; }
.three.columns { width: 22%; }
.four.columns { width: 30.6666666667%; }
.five.columns { width: 39.3333333333%; }
.six.columns { width: 48%; }
.seven.columns { width: 56.6666666667%; }
.eight.columns { width: 65.3333333333%; }
.nine.columns { width: 74.0%; }
.ten.columns { width: 82.6666666667%; }
.eleven.columns { width: 91.3333333333%; }
.twelve.columns { width: 100%; margin-left: 0; }
.one-third.column { width: 30.6666666667%; }
.two-thirds.column { width: 65.3333333333%; }
.one-half.column { width: 48%; }
/* Offsets */
.offset-by-one.column,
.offset-by-one.columns { margin-left: 8.66666666667%; }
.offset-by-two.column,
.offset-by-two.columns { margin-left: 17.3333333333%; }
.offset-by-three.column,
.offset-by-three.columns { margin-left: 26%; }
.offset-by-four.column,
.offset-by-four.columns { margin-left: 34.6666666667%; }
.offset-by-five.column,
.offset-by-five.columns { margin-left: 43.3333333333%; }
.offset-by-six.column,
.offset-by-six.columns { margin-left: 52%; }
.offset-by-seven.column,
.offset-by-seven.columns { margin-left: 60.6666666667%; }
.offset-by-eight.column,
.offset-by-eight.columns { margin-left: 69.3333333333%; }
.offset-by-nine.column,
.offset-by-nine.columns { margin-left: 78.0%; }
.offset-by-ten.column,
.offset-by-ten.columns { margin-left: 86.6666666667%; }
.offset-by-eleven.column,
.offset-by-eleven.columns { margin-left: 95.3333333333%; }
.offset-by-one-third.column,
.offset-by-one-third.columns { margin-left: 34.6666666667%; }
.offset-by-two-thirds.column,
.offset-by-two-thirds.columns { margin-left: 69.3333333333%; }
.offset-by-one-half.column,
.offset-by-one-half.columns { margin-left: 52%; }
}
/* Base Styles
–––––––––––––––––––––––––––––––––––––––––––––––––– */
/* NOTE
html is set to 62.5% so that all the REM measurements throughout Skeleton
are based on 10px sizing. So basically 1.5rem = 15px :) */
html {
font-size: 62.5%; }
body {
font-size: 1.5em; /* currently ems cause chrome bug misinterpreting rems on body element */
line-height: 1.6;
font-weight: 400;
font-family: "Raleway", "HelveticaNeue", "Helvetica Neue", Helvetica, Arial, sans-serif;
color: #222; }
/* Typography
–––––––––––––––––––––––––––––––––––––––––––––––––– */
h1, h2, h3, h4, h5, h6 {
margin-top: 0;
margin-bottom: 2rem;
font-weight: 300; }
h1 { font-size: 4.0rem; line-height: 1.2; letter-spacing: -.1rem;}
h2 { font-size: 3.6rem; line-height: 1.25; letter-spacing: -.1rem; }
h3 { font-size: 3.0rem; line-height: 1.3; letter-spacing: -.1rem; }
h4 { font-size: 2.4rem; line-height: 1.35; letter-spacing: -.08rem; }
h5 { font-size: 1.8rem; line-height: 1.5; letter-spacing: -.05rem; }
h6 { font-size: 1.5rem; line-height: 1.6; letter-spacing: 0; }
/* Larger than phablet */
@media (min-width: 550px) {
h1 { font-size: 5.0rem; }
h2 { font-size: 4.2rem; }
h3 { font-size: 3.6rem; }
h4 { font-size: 3.0rem; }
h5 { font-size: 2.4rem; }
h6 { font-size: 1.5rem; }
}
p {
margin-top: 0; }
/* Links
–––––––––––––––––––––––––––––––––––––––––––––––––– */
a {
color: #1EAEDB; }
a:hover {
color: #0FA0CE; }
/* Buttons
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.button,
button,
input[type="submit"],
input[type="reset"],
input[type="button"] {
display: inline-block;
height: 38px;
padding: 0 30px;
color: #555;
text-align: center;
font-size: 11px;
font-weight: 600;
line-height: 38px;
letter-spacing: .1rem;
text-transform: uppercase;
text-decoration: none;
white-space: nowrap;
background-color: transparent;
border-radius: 4px;
border: 1px solid #bbb;
cursor: pointer;
box-sizing: border-box; }
.button:hover,
button:hover,
input[type="submit"]:hover,
input[type="reset"]:hover,
input[type="button"]:hover,
.button:focus,
button:focus,
input[type="submit"]:focus,
input[type="reset"]:focus,
input[type="button"]:focus {
color: #333;
border-color: #888;
outline: 0; }
.button.button-primary,
button.button-primary,
input[type="submit"].button-primary,
input[type="reset"].button-primary,
input[type="button"].button-primary {
color: #FFF;
background-color: #33C3F0;
border-color: #33C3F0; }
.button.button-primary:hover,
button.button-primary:hover,
input[type="submit"].button-primary:hover,
input[type="reset"].button-primary:hover,
input[type="button"].button-primary:hover,
.button.button-primary:focus,
button.button-primary:focus,
input[type="submit"].button-primary:focus,
input[type="reset"].button-primary:focus,
input[type="button"].button-primary:focus {
color: #FFF;
background-color: #1EAEDB;
border-color: #1EAEDB; }
/* Forms
–––––––––––––––––––––––––––––––––––––––––––––––––– */
input[type="email"],
input[type="number"],
input[type="search"],
input[type="text"],
input[type="tel"],
input[type="url"],
input[type="password"],
textarea,
select {
height: 38px;
padding: 6px 10px; /* The 6px vertically centers text on FF, ignored by Webkit */
background-color: #fff;
border: 1px solid #D1D1D1;
border-radius: 4px;
box-shadow: none;
box-sizing: border-box; }
/* Removes awkward default styles on some inputs for iOS */
input[type="email"],
input[type="number"],
input[type="search"],
input[type="text"],
input[type="tel"],
input[type="url"],
input[type="password"],
textarea {
-webkit-appearance: none;
-moz-appearance: none;
appearance: none; }
textarea {
min-height: 65px;
padding-top: 6px;
padding-bottom: 6px; }
input[type="email"]:focus,
input[type="number"]:focus,
input[type="search"]:focus,
input[type="text"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus,
input[type="password"]:focus,
textarea:focus,
select:focus {
border: 1px solid #33C3F0;
outline: 0; }
label,
legend {
display: block;
margin-bottom: .5rem;
font-weight: 600; }
fieldset {
padding: 0;
border-width: 0; }
input[type="checkbox"],
input[type="radio"] {
display: inline; }
label > .label-body {
display: inline-block;
margin-left: .5rem;
font-weight: normal; }
/* Lists
–––––––––––––––––––––––––––––––––––––––––––––––––– */
ul {
list-style: circle inside; }
ol {
list-style: decimal inside; }
ol, ul {
padding-left: 0;
margin-top: 0; }
ul ul,
ul ol,
ol ol,
ol ul {
margin: 1.5rem 0 1.5rem 3rem;
font-size: 90%; }
li {
margin-bottom: 1rem; }
/* Code
–––––––––––––––––––––––––––––––––––––––––––––––––– */
code {
padding: .2rem .5rem;
margin: 0 .2rem;
font-size: 90%;
white-space: nowrap;
background: #F1F1F1;
border: 1px solid #E1E1E1;
border-radius: 4px; }
pre > code {
display: block;
padding: 1rem 1.5rem;
white-space: pre; }
/* Tables
–––––––––––––––––––––––––––––––––––––––––––––––––– */
th,
td {
padding: 12px 15px;
text-align: left;
border-bottom: 1px solid #E1E1E1; }
th:first-child,
td:first-child {
padding-left: 0; }
th:last-child,
td:last-child {
padding-right: 0; }
/* Spacing
–––––––––––––––––––––––––––––––––––––––––––––––––– */
button,
.button {
margin-bottom: 1rem; }
input,
textarea,
select,
fieldset {
margin-bottom: 1.5rem; }
pre,
blockquote,
dl,
figure,
table,
p,
ul,
ol,
form {
margin-bottom: 2.5rem; }
/* Utilities
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.u-full-width {
width: 100%;
box-sizing: border-box; }
.u-max-full-width {
max-width: 100%;
box-sizing: border-box; }
.u-pull-right {
float: right; }
.u-pull-left {
float: left; }
/* Misc
–––––––––––––––––––––––––––––––––––––––––––––––––– */
hr {
margin-top: 3rem;
margin-bottom: 3.5rem;
border-width: 0;
border-top: 1px solid #E1E1E1; }
/* Clearing
–––––––––––––––––––––––––––––––––––––––––––––––––– */
/* Self Clearing Goodness */
.container:after,
.row:after,
.u-cf {
content: "";
display: table;
clear: both; }
/* Media Queries
–––––––––––––––––––––––––––––––––––––––––––––––––– */
/*
Note: The best way to structure the use of media queries is to create the queries
near the relevant code. For example, if you wanted to change the styles for buttons
on small devices, paste the mobile query code up in the buttons section and style it
there.
*/
/* Larger than mobile */
@media (min-width: 400px) {}
/* Larger than phablet (also point when grid becomes active) */
@media (min-width: 550px) {}
/* Larger than tablet */
@media (min-width: 750px) {}
/* Larger than desktop */
@media (min-width: 1000px) {}
/* Larger than Desktop HD */
@media (min-width: 1200px) {}

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test/css/styles.css Normal file
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body {
padding: 50px;
}
.example {
margin-bottom: 50px;
}
h2 {
font-weight: normal;
}
canvas, svg {
width: 500px;
height: 500px;
border: 1px solid #ccc;
margin-right: 50px;
}
.canvas, .svg {
display: inline-block;
}
.svg::after, .canvas::after {
display: block;
position: absolute;
width: 500px;
text-align: center;
font-size: 14px;
color: #aaa;
}
.canvas::after {
content: 'Canvas';
}
.svg::after {
content: 'SVG';
}

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test/example.spec.js
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describe('canvas2svg exports', function() {
var examples = Object.keys(C2S_EXAMPLES);
var C2S_WIDTH = 600;
var C2S_HEIGHT = 600;
var imgdata, svgimgdata, diffdata;
function drawExample (example) {
var canvas = document.createElement('canvas');
canvas.setAttribute('width', C2S_WIDTH);
canvas.setAttribute('height', C2S_HEIGHT);
document.body.appendChild(canvas);
var ctx = canvas.getContext("2d");
ctx.clearRect(0, 0, C2S_WIDTH, C2S_HEIGHT);
var c2s = new C2S(C2S_WIDTH, C2S_HEIGHT);
example(ctx);
example(c2s);
imgdata = canvas.toDataURL();
svgimgdata = "data:image/svg+xml;charset=utf-8,"+c2s.getSerializedSvg(true);
}
function cleanUp () {
var canvases = document.querySelectorAll('canvas');
var i;
//Node Array doesn't implement array methods :/
for(i=0; i<canvases.length; i++) {
canvases[i].parentElement.removeChild(canvases[i]);
}
}
examples.forEach(function(example) {
describe(example, function() {
var drawFunction;
beforeEach(function() {
drawFunction = C2S_EXAMPLES[example];
});
it('to svg (left is canvas right is svg)', function () {
drawExample(drawFunction);
});
//test is async, pass in done
it('resembles each other', function() {
// see: https://github.com/Huddle/Resemble.js
var diff = resemble(imgdata).compareTo(svgimgdata).ignoreAntialiasing().onComplete(function(data){
diffdata = data;
expect(data.misMatchPercentage).to.be.below(0.30);
});
});
after(function() {
cleanUp();
var lis = document.querySelectorAll('li');
//on server side, don't inject images
if(lis.length > 0) {
//append svg + canvas images
var li = lis[lis.length - 2];
var image = document.createElement('img');
image.setAttribute('src', imgdata);
image.setAttribute('style', 'display:inline-block;');
var svgimage = document.createElement('img');
svgimage.setAttribute('src', svgimgdata);
svgimage.setAttribute('style', 'display:inline-block;');
li.appendChild(image);
li.appendChild(svgimage);
// append diff data
li = lis[lis.length-1];
var diffimage = document.createElement('img');
diffimage.setAttribute('src', diffdata.getImageDataUrl());
diffimage.setAttribute('style', 'display:inline-block;');
li.appendChild(diffimage);
}
});
});
});
});

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test/globals.js
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window.C2S_EXAMPLES = {};

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test/index.html Normal file
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<!DOCTYPE HTML>
<html>
<head>
<meta charset=UTF-8">
<link rel="stylesheet" href="css/styles.css">
</head>
<body>
<script src="../dist/test.js"></script>
</body>
</html>

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test/index.js Normal file
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import {Element} from '../index'
import arc from './tests/arc'
import arcTo from './tests/arcTo'
import arcTo2 from './tests/arcTo2'
import emptyArc from './tests/emptyArc'
import fillstyle from './tests/fillstyle'
import globalAlpha from './tests/globalalpha'
import gradient from './tests/gradient'
import linecap from './tests/linecap'
import linewidth from './tests/linewidth'
import rgba from './tests/rgba'
import rotate from './tests/rotate'
import saveandrestore from './tests/saveandrestore'
import setLineDash from './tests/setLineDash'
import text from './tests/text'
import tiger from './tests/tiger'
import transform from './tests/transform'
const tests = [
tiger,
arc,
arcTo,
arcTo2,
emptyArc,
fillstyle,
globalAlpha,
gradient,
linecap,
linewidth,
rgba,
rotate,
saveandrestore,
setLineDash,
text,
transform
];
for (let fn of tests) {
let name = fn.name;
// Container
const container = document.createElement('div');
container.className = 'example';
container.id = 'example-' + name;
container.innerHTML = `<h2>${name}</h2><div class="canvas"></div><div class="svg"></div>`
// Canvas
const canvas = document.createElement('canvas');
container.querySelector('.canvas').appendChild(canvas);
// SVGCanvas
const svgcanvas = new Element();
container.querySelector('.svg').appendChild(svgcanvas.getElement());
document.querySelector('body').appendChild(container);
// Render
for (let c of [canvas, svgcanvas]) {
c.width = 500;
c.height = 500;
const ctx = c.getContext('2d');
fn(ctx);
}
}

105
test/playground.html
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@ -1,105 +0,0 @@
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Canvas2Svg Playground</title>
<link rel="stylesheet" href="css/normalize.css">
<link rel="stylesheet" href="css/skeleton.css">
<link rel="stylesheet" href="css/playground.css">
</head>
<body>
<div class="container">
<form>
<div class="row">
<div class="twelve columns">
<h5>Select an example</h5>
</div>
</div>
</form>
<form>
<div class="row">
<div class="twelve columns">
<!-- select content is generated by the command `gulp update_examples` -->
<select id="select" class="u-full-width"><option value="arc">arc</option><option value="arcTo">arcTo</option><option value="arcTo2">arcTo2</option><option value="emptyArc">emptyArc</option><option value="fillstyle">fillstyle</option><option value="globalalpha">globalalpha</option><option value="gradient">gradient</option><option value="linecap">linecap</option><option value="linewidth">linewidth</option><option value="rgba">rgba</option><option value="rotate">rotate</option><option value="saveandrestore">saveandrestore</option><option value="setLineDash">setLineDash</option><option value="text">text</option><option value="tiger">tiger</option><option value="transform">transform</option></select>
</div>
</div>
</form>
<div class="row">
<div class="six columns">
<h5>Canvas</h5>
</div>
<div class="six columns">
<h5>SVG</h5>
</div>
</div>
<div class="row">
<div class="six columns">
<canvas id="canvas" width="460" height="460"></canvas>
</div>
<div class="six columns" id="svg">
</div>
</div>
<br>
<div class="row try">
<div class="twelve columns">
<h5>Or try your own!</h5>
</div>
</div>
<div class="row">
<div class="twelve columns">
<textarea id="textarea" class="u-full-width" placeholder="//ctx.fillRect(0,0,100,100);"></textarea>
</div>
</div>
<div class="row">
<div class="twelve columns">
<a href="#" class="button button-primary u-pull-right" id="render">Render</a>
</div>
</div>
</div>
<!-- jQuery is only used for convenience on this test page, it's not a dependency for the library -->
<script src="https://unpkg.com/jquery@3.6.0/dist/jquery.js"></script>
<script type="text/javascript" src="../canvas2svg.js"></script>
<script type="text/javascript">
window.C2S_EXAMPLES = {};
</script>
<!-- examples content is generated by the command `gulp update_examples` -->
<div id="examples"><script type="text/javascript" src="example/arc.js"></script><script type="text/javascript" src="example/arcTo.js"></script><script type="text/javascript" src="example/arcTo2.js"></script><script type="text/javascript" src="example/emptyArc.js"></script><script type="text/javascript" src="example/fillstyle.js"></script><script type="text/javascript" src="example/globalalpha.js"></script><script type="text/javascript" src="example/gradient.js"></script><script type="text/javascript" src="example/linecap.js"></script><script type="text/javascript" src="example/linewidth.js"></script><script type="text/javascript" src="example/rgba.js"></script><script type="text/javascript" src="example/rotate.js"></script><script type="text/javascript" src="example/saveandrestore.js"></script><script type="text/javascript" src="example/setLineDash.js"></script><script type="text/javascript" src="example/text.js"></script><script type="text/javascript" src="example/tiger.js"></script><script type="text/javascript" src="example/transform.js"></script></div>
<script type="text/javascript">
(function () {
"use strict";
function drawExample (example) {
var canvas = document.getElementById('canvas');
var ctx = canvas.getContext("2d");
ctx.clearRect(0, 0, 500, 500);
var c2s = new C2S(500, 500);
var svg = document.getElementById("svg");
if (svg.children.length > 0) {
svg.removeChild(svg.children[0]);
}
example(ctx);
example(c2s);
svg.appendChild(c2s.getSvg());
}
$('#render').on('click', function(event) {
event.preventDefault();
var text = $("#textarea").val();
var drawFunction = new Function("ctx", text);
drawExample(drawFunction);
});
$('#select').on('change', function(event) {
var example = C2S_EXAMPLES[$(this).val()];
drawExample(example);
}).trigger('change');
}());
</script>
</body>
</html>

110
test/playground_wrapped_Context2D.html
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@ -1,110 +0,0 @@
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Canvas2Svg Playground</title>
<link rel="stylesheet" href="css/normalize.css">
<link rel="stylesheet" href="css/skeleton.css">
<link rel="stylesheet" href="css/playground.css">
</head>
<body>
<div class="container">
<form>
<div class="row">
<div class="twelve columns">
<h5>Select an example</h5>
</div>
</div>
</form>
<form>
<div class="row">
<div class="twelve columns">
<!-- select content is generated by the command `gulp update_examples` -->
<select id="select" class="u-full-width"><option value="arc">arc</option><option value="arcTo">arcTo</option><option value="arcTo2">arcTo2</option><option value="emptyArc">emptyArc</option><option value="fillstyle">fillstyle</option><option value="globalalpha">globalalpha</option><option value="gradient">gradient</option><option value="linecap">linecap</option><option value="linewidth">linewidth</option><option value="setLineDash">setLineDash</option><option value="rgba">rgba</option><option value="saveandrestore">saveandrestore</option><option value="text">text</option><option value="tiger">tiger</option></select>
</div>
</div>
</form>
<div class="row">
<div class="six columns">
<h5>Canvas</h5>
</div>
<div class="six columns">
<h5>SVG</h5>
</div>
</div>
<div class="row">
<div class="six columns">
<canvas id="canvas" width="460" height="460"></canvas>
</div>
<div class="six columns" id="svg">
<canvas id="wrapped_canvas" width="460" height="460" style="display:none"></canvas>
</div>
</div>
<br>
<div class="row try">
<div class="twelve columns">
<h5>Or try your own!</h5>
</div>
</div>
<div class="row">
<div class="twelve columns">
<textarea id="textarea" class="u-full-width" placeholder="//ctx.fillRect(0,0,100,100);"></textarea>
</div>
</div>
<div class="row">
<div class="twelve columns">
<a href="#" class="button button-primary u-pull-right" id="render">Render</a>
</div>
</div>
</div>
<!-- jQuery is only used for convenience on this test page, it's not a dependency for the library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script type="text/javascript" src="../canvas2svg.js"></script>
<script type="text/javascript">
window.C2S_EXAMPLES = {};
</script>
<!-- examples content is generated by the command `gulp update_examples` -->
<div id="examples"><script type="text/javascript" src="example/arc.js"></script><script type="text/javascript" src="example/arcTo.js"></script><script type="text/javascript" src="example/arcTo2.js"></script><script type="text/javascript" src="example/emptyArc.js"></script><script type="text/javascript" src="example/fillstyle.js"></script><script type="text/javascript" src="example/globalalpha.js"></script><script type="text/javascript" src="example/gradient.js"></script><script type="text/javascript" src="example/linecap.js"></script><script type="text/javascript" src="example/linewidth.js"></script><script type="text/javascript" src="example/setLineDash.js"></script><script type="text/javascript" src="example/rgba.js"></script><script type="text/javascript" src="example/saveandrestore.js"></script><script type="text/javascript" src="example/text.js"></script><script type="text/javascript" src="example/tiger.js"></script></div>
<script type="text/javascript">
(function () {
"use strict";
function drawExample (example) {
var canvas = document.getElementById('canvas');
var ctx = canvas.getContext("2d");
ctx.clearRect(0, 0, 500, 500);
var svg = document.getElementById("svg");
// remove the latest svg (children[0] is the wrapped canvas element)
if (svg.children.length > 1) {
svg.removeChild(svg.children[1]);
}
var otherCanvas = document.getElementById("wrapped_canvas");
var wrappedCtx = otherCanvas.getContext("2d");
var c2s = new C2S({ctx:wrappedCtx, width:500, height:500});
example(ctx);
example(c2s);
svg.appendChild(c2s.getSvg());
}
$('#render').on('click', function(event) {
event.preventDefault();
var text = $("#textarea").val();
var drawFunction = new Function("ctx", text);
drawExample(drawFunction);
});
$('#select').on('change', function(event) {
var example = C2S_EXAMPLES[$(this).val()];
drawExample(example);
}).trigger('change');
}());
</script>
</body>
</html>

28
test/testrunner.html
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@ -1,28 +0,0 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title> Canvas2Svg Unit Tests</title>
<link rel="stylesheet" href="../node_modules/mocha/mocha.css">
</head>
<body>
<div id="mocha"></div>
<script src="../node_modules/mocha/mocha.js"></script>
<script src="../node_modules/chai/chai.js"></script>
<script src="../node_modules/resemblejs/resemble.js"></script>
<script src="../canvas2svg.js"></script>
<script type="text/javascript" src="globals.js"></script>
<script>
mocha.setup('bdd');
var should = chai.should();
var expect = chai.expect;
</script>
<!-- examples content is generated by the command `gulp update_examples` -->
<div id="examples"><script type="text/javascript" src="example/arc.js"></script><script type="text/javascript" src="example/arcTo.js"></script><script type="text/javascript" src="example/arcTo2.js"></script><script type="text/javascript" src="example/emptyArc.js"></script><script type="text/javascript" src="example/fillstyle.js"></script><script type="text/javascript" src="example/globalalpha.js"></script><script type="text/javascript" src="example/gradient.js"></script><script type="text/javascript" src="example/linecap.js"></script><script type="text/javascript" src="example/linewidth.js"></script><script type="text/javascript" src="example/rgba.js"></script><script type="text/javascript" src="example/rotate.js"></script><script type="text/javascript" src="example/saveandrestore.js"></script><script type="text/javascript" src="example/setLineDash.js"></script><script type="text/javascript" src="example/text.js"></script><script type="text/javascript" src="example/tiger.js"></script><script type="text/javascript" src="example/transform.js"></script></div>
<script src="unit.spec.js"></script>
<script src="example.spec.js"></script>
<script>
mocha.run();
</script>
</body>
</html>

6
test/example/arc.js → test/tests/arc.js
View File

@ -1,8 +1,8 @@
window.C2S_EXAMPLES['arc'] = function(ctx) {
export default function arc(ctx) {
// Draw shapes
for (i = 0; i < 4; i++) {
for (j = 0; j < 3; j++) {
for (let i = 0; i < 4; i++) {
for (let j = 0; j < 3; j++) {
ctx.beginPath();
var x = 25 + j * 50; // x coordinate
var y = 25 + i * 50; // y coordinate

2
test/example/arcTo.js → test/tests/arcTo.js
View File

@ -1,4 +1,4 @@
window.C2S_EXAMPLES['arcTo'] = function (ctx) {
export default function arcTo(ctx) {
ctx.beginPath();
ctx.moveTo(150, 20);
ctx.arcTo(150, 100, 50, 20, 30);

2
test/example/arcTo2.js → test/tests/arcTo2.js
View File

@ -1,4 +1,4 @@
window.C2S_EXAMPLES['arcTo2'] = function(ctx) {
export default function arcTo(ctx) {
ctx.beginPath();
ctx.moveTo(100, 225); // P0
ctx.arcTo(300, 25, 500, 225, 75); // P1, P2 and the radius

6
test/example/emptyArc.js → test/tests/emptyArc.js
View File

@ -1,8 +1,8 @@
window.C2S_EXAMPLES['emptyArc'] = function(ctx) {
export default function emptyArc(ctx) {
// Draw shapes
for (i = 0; i < 4; i++) {
for (j = 0; j < 3; j++) {
for (let i = 0; i < 4; i++) {
for (let j = 0; j < 3; j++) {
ctx.beginPath();
ctx.arc(100, 100, 100, Math.PI, Math.PI);
ctx.fill();

2
test/example/fillstyle.js → test/tests/fillstyle.js
View File

@ -1,4 +1,4 @@
window.C2S_EXAMPLES['fillstyle'] = function(ctx) {
export default function fillStyle(ctx) {
for (var i = 0; i < 6; i++) {
for (var j = 0; j < 6; j++) {
ctx.fillStyle = 'rgb(' + Math.floor(255 - 42.5 * i) + ',' +

4
test/example/globalalpha.js → test/tests/globalalpha.js
View File

@ -1,4 +1,4 @@
window.C2S_EXAMPLES['globalalpha'] = function(ctx) {
export default function globalAlpha(ctx) {
ctx.fillStyle = '#FD0';
ctx.fillRect(0,0,75,75);
ctx.fillStyle = '#6C0';
@ -13,7 +13,7 @@ window.C2S_EXAMPLES['globalalpha'] = function(ctx) {
ctx.globalAlpha = 0.2;
// Draw semi transparent circles
for (i=0;i<7;i++){
for (let i=0;i<7;i++){
ctx.beginPath();
ctx.arc(75,75,10+10*i,0,Math.PI*2,true);
ctx.fill();

2
test/example/gradient.js → test/tests/gradient.js
View File

@ -1,4 +1,4 @@
window.C2S_EXAMPLES['gradient'] = function(ctx) {
export default function gradient(ctx) {
ctx.save();
ctx.strokeStyle='rgba(0,0,0,0)';
ctx.lineCap='butt';

4
test/example/linecap.js → test/tests/linecap.js
View File

@ -1,4 +1,4 @@
window.C2S_EXAMPLES['linecap'] = function(ctx) {
export default function linecap(ctx) {
var lineCap = ['butt','round','square'];
// Draw guides
@ -12,7 +12,7 @@ window.C2S_EXAMPLES['linecap'] = function(ctx) {
// Draw lines
ctx.strokeStyle = 'black';
for (var i=0;i<lineCap.length;i++){
for (let i=0;i<lineCap.length;i++){
ctx.lineWidth = 15;
ctx.lineCap = lineCap[i];
ctx.beginPath();

2
test/example/linewidth.js → test/tests/linewidth.js
View File

@ -1,4 +1,4 @@
window.C2S_EXAMPLES['linewidth'] = function(ctx) {
export default function linewidth(ctx) {
for (var i = 0; i < 10; i++){
ctx.lineWidth = 1+i;
ctx.beginPath();

2
test/example/rgba.js → test/tests/rgba.js
View File

@ -1,4 +1,4 @@
window.C2S_EXAMPLES['rgba'] = function(ctx) {
export default function rgba(ctx) {
// Draw background
ctx.fillStyle = 'rgb(255,221,0)';
ctx.fillRect(0,0,150,37.5);

2
test/example/rotate.js → test/tests/rotate.js
View File

@ -1,5 +1,5 @@
// Example from https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/rotate
window.C2S_EXAMPLES['rotate'] = function(ctx) {
export default function rotate(ctx) {
ctx.fillStyle = 'gray';
ctx.fillRect(80, 60, 140, 30);

2
test/example/saveandrestore.js → test/tests/saveandrestore.js
View File

@ -1,4 +1,4 @@
window.C2S_EXAMPLES['saveandrestore'] = function (ctx) {
export default function saveAndRestore(ctx) {
ctx.fillRect(0, 0, 150, 150); // Draw a rectangle with default settings
ctx.save(); // Save the default state

2
test/example/setLineDash.js → test/tests/setLineDash.js
View File

@ -1,4 +1,4 @@
window.C2S_EXAMPLES['setLineDash'] = function(ctx) {
export default function setLineDash(ctx) {
ctx.save();
ctx.lineWidth = 4;
for (var i = 0; i < 10; i++){

2
test/example/text.js → test/tests/text.js
View File

@ -1,4 +1,4 @@
window.C2S_EXAMPLES['text'] = function(ctx) {
export default function text(ctx) {
ctx.font = "normal 36px Times";
ctx.fillStyle = "#000000";
ctx.fillText("A Text Example", 50, 50);

2
test/example/tiger.js → test/tests/tiger.js
View File

@ -1,4 +1,4 @@
window.C2S_EXAMPLES['tiger'] = function(ctx) {
export default function tiger(ctx) {
ctx.save();
ctx.strokeStyle = 'rgba(0,0,0,0)';
ctx.lineCap = 'butt';

2
test/example/transform.js → test/tests/transform.js
View File

@ -1,4 +1,4 @@
window.C2S_EXAMPLES['transform'] = function(ctx) {
export default function transform(ctx) {
// case 1
ctx.fillStyle = "rgba(255, 0, 0, 0.5)";
ctx.setTransform(1,1,0,1,0,0);

360
test/unit.spec.js
View File

@ -1,360 +0,0 @@
describe('canvas2svg', function() {
describe('it can be created', function(){
it("with options", function() {
var ctx = new C2S({width:100, height:200, enableMirroring:true});
expect(ctx instanceof C2S).to.equal(true);
expect(ctx.width).to.equal(100);
expect(ctx.height).to.equal(200);
expect(ctx.enableMirroring).to.equal(true);
var ctx2 = new C2S(300,400);
expect(ctx2 instanceof C2S).to.equal(true);
expect(ctx2.width).to.equal(300);
expect(ctx2.height).to.equal(400);
expect(ctx2.enableMirroring).to.equal(false);
});
it("with no options and have defaults", function() {
var ctx = new C2S();
expect(ctx instanceof C2S).to.equal(true);
expect(ctx.width).to.equal(500);
expect(ctx.height).to.equal(500);
expect(ctx.enableMirroring).to.equal(false);
});
it("even if it's called as a function", function() {
//notice the lack of new!
var ctx = C2S({width:100, height:200, enableMirroring:true});
expect(ctx instanceof C2S).to.equal(true);
expect(ctx.width).to.equal(100);
expect(ctx.height).to.equal(200);
expect(ctx.enableMirroring).to.equal(true);
var ctx2 = C2S(300,400);
expect(ctx2 instanceof C2S).to.equal(true);
expect(ctx2.width).to.equal(300);
expect(ctx2.height).to.equal(400);
expect(ctx2.enableMirroring).to.equal(false);
var ctx3 = C2S();
expect(ctx3 instanceof C2S).to.equal(true);
expect(ctx3.width).to.equal(500);
expect(ctx3.height).to.equal(500);
expect(ctx3.enableMirroring).to.equal(false);
});
it("can be created on another document", function () {
var otherDoc = document.implementation.createHTMLDocument();
var ctx = C2S({document: otherDoc});
expect(ctx.getSvg().ownerDocument).to.equal(otherDoc);
});
});
describe("can export to", function() {
it("inline svg", function() {
var ctx = new C2S();
ctx.fillStyle="red";
ctx.fillRect(100,100,100,100);
//svg is of course not attached to the document
var svg = ctx.getSvg();
expect(svg.nodeType).to.equal(1);
expect(svg.nodeName).to.equal("svg");
});
it("serialized svg", function() {
var ctx = new C2S();
ctx.fillStyle="red";
ctx.fillRect(100,100,100,100);
//Standalone SVG doesn't support named entities, which document.createTextNode encodes.
//passing in true will attempt to find all named entities and encode it as a numeric entity.
var string = ctx.getSerializedSvg(true);
expect(typeof string).to.equal("string");
expect(string).to.equal('<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="500" height="500"><defs/><g><rect fill="red" stroke="none" x="100" y="100" width="100" height="100"/></g></svg>');
});
});
describe("with multiple transforms and fill/strokes", function() {
it("creates new groups", function() {
var ctx = new C2S();
ctx.translate(0, 20);
ctx.fillRect(0, 0, 10, 10);
ctx.translate(10, 20);
ctx.fillRect(0, 0, 10, 10);
ctx.translate(20, 20);
ctx.fillRect(0, 0, 10, 10);
var svg = ctx.getSvg();
var firstGroup = svg.querySelector("g");
expect(firstGroup.getAttribute("transform")).to.equal("translate(0,20)");
var secondGroup = firstGroup.querySelector("g");
expect(secondGroup.getAttribute("transform")).to.equal("translate(10,20)");
var thirdGroup = secondGroup.querySelector("g");
expect(thirdGroup.getAttribute("transform")).to.equal("translate(20,20)");
});
it("save and restore still works", function() {
var ctx = new C2S();
ctx.translate(0, 10);
ctx.fillRect(0, 0, 10, 10);
ctx.save();
ctx.translate(40, 40);
ctx.fillRect(0, 0, 10, 10);
ctx.restore();
ctx.translate(0, 10);
ctx.fillRect(0, 0, 10, 10);
var svg = ctx.getSvg();
var firstGroup = svg.querySelector("g");
expect(firstGroup.getAttribute("transform")).to.equal("translate(0,10)");
var secondGroup = firstGroup.childNodes[1];
expect(secondGroup.getAttribute("transform")).to.equal("translate(40,40)");
var thirdGroup = firstGroup.childNodes[2];
expect(thirdGroup.getAttribute("transform")).to.equal("translate(0,10)");
});
});
describe("it will generate ids", function() {
it("that start with a letter", function() {
var ctx = new C2S();
ctx.createRadialGradient(6E1, 6E1, 0.0, 6E1, 6E1, 5E1);
var svg = ctx.getSvg();
var id = svg.children[0].children[0].id;
var test = /^[A-Za-z]/.test(id);
expect(test).to.equal(true);
});
});
describe("will split up rgba", function() {
//while browsers support rgba values for fill/stroke, this is not accepted in visio/illustrator
it("to fill and fill-opacity", function() {
var ctx = new C2S();
ctx.fillStyle="rgba(20,40,50,0.5)";
ctx.fillRect(100,100,100,100);
var svg = ctx.getSvg();
expect(svg.querySelector("rect").getAttribute("fill")).to.equal("rgb(20,40,50)");
expect(svg.querySelector("rect").getAttribute("fill-opacity")).to.equal("0.5");
});
it("to stroke and stroke-opacity", function() {
var ctx = new C2S();
ctx.strokeStyle="rgba(10,20,30,0.4)";
ctx.strokeRect(100,100,100,100);
var svg = ctx.getSvg();
expect(svg.querySelector("rect").getAttribute("stroke")).to.equal("rgb(10,20,30)");
expect(svg.querySelector("rect").getAttribute("stroke-opacity")).to.equal("0.4");
});
});
describe("supports path commands", function() {
it("and moveTo may be called without beginPath, but is not recommended", function() {
var ctx = new C2S();
ctx.moveTo(0,0);
ctx.lineTo(100,100);
ctx.stroke();
});
});
describe("supports text align", function() {
it("not specifying a value defaults to 'start'", function() {
var ctx = new C2S();
ctx.font = "normal 36px Times";
ctx.fillStyle = "#000000";
ctx.fillText("A Text Example", 0, 50);
var svg = ctx.getSvg();
expect(svg.querySelector("text").getAttribute("text-anchor")).to.equal("start");
});
it("assuming ltr, left maps to 'start'", function() {
var ctx = new C2S();
ctx.textAlign = "left";
ctx.font = "normal 36px Times";
ctx.fillStyle = "#000000";
ctx.fillText("A Text Example", 0, 50);
var svg = ctx.getSvg();
expect(svg.querySelector("text").getAttribute("text-anchor")).to.equal("start");
});
it("assuming ltr, right maps to 'end'", function() {
var ctx = new C2S();
ctx.textAlign = "right";
ctx.font = "normal 36px Times";
ctx.fillStyle = "#000000";
ctx.fillText("A Text Example", 0, 50);
var svg = ctx.getSvg();
expect(svg.querySelector("text").getAttribute("text-anchor")).to.equal("end");
});
it("center maps to 'middle'", function() {
var ctx = new C2S();
ctx.textAlign = "center";
ctx.font = "normal 36px Times";
ctx.fillStyle = "#000000";
ctx.fillText("A Text Example", 0, 50);
var svg = ctx.getSvg();
expect(svg.querySelector("text").getAttribute("text-anchor")).to.equal("middle");
});
it("stores the proper values on save and restore", function() {
var ctx = new C2S();
ctx.textAlign = "center";
expect(ctx.textAlign).to.equal("center");
ctx.save();
expect(ctx.textAlign).to.equal("center");
ctx.textAlign = "right";
expect(ctx.textAlign).to.equal("right");
ctx.restore();
expect(ctx.textAlign).to.equal("center");
});
});
describe("supports text baseline", function() {
it("not specifying a value defaults to alphabetic", function() {
var ctx = new C2S();
ctx.font = "normal 36px Times";
ctx.fillStyle = "#000000";
ctx.fillText("A Text Example", 0, 50);
var svg = ctx.getSvg();
expect(svg.querySelector("text").getAttribute("dominant-baseline")).to.equal("alphabetic");
});
it("not specifying a valid value defaults to alphabetic", function() {
var ctx = new C2S();
ctx.font = "normal 36px Times";
ctx.fillStyle = "#000000";
ctx.textBaseline = "werwerwer";
ctx.fillText("A Text Example", 0, 50);
var svg = ctx.getSvg();
expect(svg.querySelector("text").getAttribute("dominant-baseline")).to.equal("alphabetic");
});
it("hanging maps to hanging", function() {
var ctx = new C2S();
ctx.font = "normal 36px Times";
ctx.fillStyle = "#000000";
ctx.textBaseline = "hanging";
ctx.fillText("A Text Example", 0, 50);
var svg = ctx.getSvg();
expect(svg.querySelector("text").getAttribute("dominant-baseline")).to.equal("hanging");
});
it("top maps to text-before-edge", function() {
var ctx = new C2S();
ctx.font = "normal 36px Times";
ctx.fillStyle = "#000000";
ctx.textBaseline = "top";
ctx.fillText("A Text Example", 0, 50);
var svg = ctx.getSvg();
expect(svg.querySelector("text").getAttribute("dominant-baseline")).to.equal("text-before-edge");
});
it("bottom maps to text-after-edge", function() {
var ctx = new C2S();
ctx.font = "normal 36px Times";
ctx.fillStyle = "#000000";
ctx.textBaseline = "bottom";
ctx.fillText("A Text Example", 0, 50);
var svg = ctx.getSvg();
expect(svg.querySelector("text").getAttribute("dominant-baseline")).to.equal("text-after-edge");
});
it("middle maps to central", function() {
var ctx = new C2S();
ctx.font = "normal 36px Times";
ctx.fillStyle = "#000000";
ctx.textBaseline = "middle";
ctx.fillText("A Text Example", 0, 50);
var svg = ctx.getSvg();
expect(svg.querySelector("text").getAttribute("dominant-baseline")).to.equal("central");
});
});
describe("supports fonts", function () {
it("doesn't crash when using a font", function () {
var ctx = new C2S();
ctx.font = "normal 12px 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif";
ctx.fillText("A Text Example", 0, 50);
var svg = ctx.getSvg();
expect(svg.querySelector("text").getAttribute("font-family")).to.equal("\'Helvetica Neue\', \'Helvetica\', \'Arial\', sans-serif");
expect(svg.querySelector("text").getAttribute("font-size")).to.equal("12px");
expect(svg.querySelector("text").getAttribute("font-weight")).to.equal("normal");
expect(svg.querySelector("text").getAttribute("font-style")).to.equal("normal");
});
});
describe("supports globalOpacity", function() {
it("set stroke-opacity when stroking and set fill-opacity when filling",function() {
var ctx = new C2S();
ctx.globalAlpha = 0.5;
ctx.moveTo(5,5);
ctx.lineTo(15,15);
ctx.stroke();
var svg = ctx.getSvg();
expect(svg.querySelector("path").getAttribute("stroke-opacity")).to.equal('0.5');
ctx.globalAlpha = 0.1;
ctx.fillStyle = "#000000";
ctx.fill();
expect(svg.querySelector("path").getAttribute("fill-opacity")).to.equal('0.1');
//stroke-opacity stays o.5
expect(svg.querySelector("path").getAttribute("stroke-opacity")).to.equal('0.5');
});
it("added into color opacity when stroking or filling with rgba style color. ",function() {
var ctx = new C2S();
ctx.strokeStyle="rgba(0,0,0,0.8)";
ctx.globalAlpha = 0.5;
ctx.moveTo(5,5);
ctx.lineTo(15,15);
ctx.stroke();
var svg = ctx.getSvg();
expect(svg.querySelector("path").getAttribute("stroke")).to.equal('rgb(0,0,0)');
//stroke-opacity should be globalAlpha*(alpha in rgba)
expect(svg.querySelector("path").getAttribute("stroke-opacity")).to.equal(''+0.8*0.5);
ctx.globalAlpha = 0.6;
ctx.fillStyle = "rgba(0,0,0,0.6)";
ctx.fill();
expect(svg.querySelector("path").getAttribute("fill-opacity")).to.equal(''+0.6*0.6);
expect(svg.querySelector("path").getAttribute("stroke-opacity")).to.equal(''+0.8*0.5);
});
});
describe("supports clip", function() {
it("adds clippath", function() {
var ctx = new C2S();
ctx.rect(200, 200, 400, 400);
ctx.clip();
ctx.fillStyle = "#000000";
ctx.rect(100, 100, 300, 300);
var svg = ctx.getSvg();
expect(svg.querySelector("clipPath > path").getAttribute("d")).to.not.equal(null);
});
});
});