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jquery.svg.js
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/* http://keith-wood.name/svg.html
SVG for jQuery v1.4.3.
Written by Keith Wood (kbwood{at}iinet.com.au) August 2007.
Dual licensed under the GPL (http://dev.jquery.com/browser/trunk/jquery/GPL-LICENSE.txt) and
MIT (http://dev.jquery.com/browser/trunk/jquery/MIT-LICENSE.txt) licenses.
Please attribute the author if you use it. */
(function($) { // Hide scope, no $ conflict
/* SVG manager.
Use the singleton instance of this class, $.svg,
to interact with the SVG functionality. */
function SVGManager() {
this._settings = []; // Settings to be remembered per SVG object
this._extensions = []; // List of SVG extensions added to SVGWrapper
// for each entry [0] is extension name, [1] is extension class (function)
// the function takes one parameter - the SVGWrapper instance
this.regional = []; // Localisations, indexed by language, '' for default (English)
this.regional[''] = {errorLoadingText: 'Error loading',
notSupportedText: 'This browser does not support SVG'};
this.local = this.regional['']; // Current localisation
this._uuid = new Date().getTime();
this._renesis = detectActiveX('RenesisX.RenesisCtrl');
this._svgWeb = typeof svgweb != 'undefined' ? true : false;
this._forceSvgWeb = function() { return typeof svgweb != 'undefined' && svgweb.config.use == 'flash' };
}
/* Determine whether a given ActiveX control is available.
@param classId (string) the ID for the ActiveX control
@return (boolean) true if found, false if not */
function detectActiveX(classId) {
try {
return !!(window.ActiveXObject && new ActiveXObject(classId));
}
catch (e) {
return false;
}
}
var PROP_NAME = 'svgwrapper';
$.extend(SVGManager.prototype, {
/* Class name added to elements to indicate already configured with SVG. */
markerClassName: 'hasSVG',
/* SVG namespace. */
svgNS: 'http://www.w3.org/2000/svg',
/* XLink namespace. */
xlinkNS: 'http://www.w3.org/1999/xlink',
/* SVG wrapper class. */
_wrapperClass: SVGWrapper,
/* Camel-case versions of attribute names containing dashes or are reserved words. */
_attrNames: {class_: 'class', in_: 'in',
alignmentBaseline: 'alignment-baseline', baselineShift: 'baseline-shift',
clipPath: 'clip-path', clipRule: 'clip-rule',
colorInterpolation: 'color-interpolation',
colorInterpolationFilters: 'color-interpolation-filters',
colorRendering: 'color-rendering', dominantBaseline: 'dominant-baseline',
enableBackground: 'enable-background', fillOpacity: 'fill-opacity',
fillRule: 'fill-rule', floodColor: 'flood-color',
floodOpacity: 'flood-opacity', fontFamily: 'font-family',
fontSize: 'font-size', fontSizeAdjust: 'font-size-adjust',
fontStretch: 'font-stretch', fontStyle: 'font-style',
fontVariant: 'font-variant', fontWeight: 'font-weight',
glyphOrientationHorizontal: 'glyph-orientation-horizontal',
glyphOrientationVertical: 'glyph-orientation-vertical',
horizAdvX: 'horiz-adv-x', horizOriginX: 'horiz-origin-x',
imageRendering: 'image-rendering', letterSpacing: 'letter-spacing',
lightingColor: 'lighting-color', markerEnd: 'marker-end',
markerMid: 'marker-mid', markerStart: 'marker-start',
stopColor: 'stop-color', stopOpacity: 'stop-opacity',
strikethroughPosition: 'strikethrough-position',
strikethroughThickness: 'strikethrough-thickness',
strokeDashArray: 'stroke-dasharray', strokeDashOffset: 'stroke-dashoffset',
strokeLineCap: 'stroke-linecap', strokeLineJoin: 'stroke-linejoin',
strokeMiterLimit: 'stroke-miterlimit', strokeOpacity: 'stroke-opacity',
strokeWidth: 'stroke-width', textAnchor: 'text-anchor',
textDecoration: 'text-decoration', textRendering: 'text-rendering',
underlinePosition: 'underline-position', underlineThickness: 'underline-thickness',
vertAdvY: 'vert-adv-y', vertOriginY: 'vert-origin-y',
wordSpacing: 'word-spacing', writingMode: 'writing-mode'},
/* Add the SVG object to its container. */
_attachSVG: function(container, settings) {
var svg = (container.namespaceURI == this.svgNS ? container : null);
container = (svg ? null : container);
if ($(container || svg).hasClass(this.markerClassName)) {
return;
}
if (typeof settings == 'string') {
settings = {loadURL: settings};
}
else if (typeof settings == 'function') {
settings = {onLoad: settings};
}
$(container || svg).addClass(this.markerClassName);
try {
if (this._forceSvgWeb()) {
if (!svg) this._svgWebAttachSVG(container, settings);
} else {
if (!svg) {
svg = document.createElementNS(this.svgNS, 'svg');
svg.setAttribute('version', '1.1');
svg.setAttribute('width', container.clientWidth);
svg.setAttribute('height', container.clientHeight);
container.appendChild(svg);
}
this._afterLoad(container, svg, settings || {});
}
}
catch (e) {
if (this._svgWeb && svgweb.config.supported) {
this._svgWebAttachSVG(container, settings);
} else if ($.browser.msie) {
if (!container.id) {
container.id = 'svg' + (this._uuid++);
}
this._settings[container.id] = settings;
container.innerHTML = '<embed type="image/svg+xml" width="100%" ' +
'height="100%" src="' + (settings.initPath || '') + 'blank.svg"/>';
}
else {
container.innerHTML = '<p class="svg_error">' +
this.local.notSupportedText + '</p>';
}
}
},
/* Add the SVG object using svgweb */
_svgWebAttachSVG: function(container, settings) {
var svg = document.createElementNS(this.svgNS, 'svg');
svg.setAttribute('width', container.clientWidth);
svg.setAttribute('height', container.clientHeight);
var svgObj = this;
svg.addEventListener('SVGLoad', function(evt) {
svgObj._svg = this;
svgObj._afterLoad(container, this, settings || {});
})
svgweb.appendChild(svg, container);
},
/* SVG callback after loading - register SVG root. */
_registerSVG: function() {
for (var i = 0; i < document.embeds.length; i++) { // Check all
var container = document.embeds[i].parentNode;
if (!$(container).hasClass($.svg.markerClassName) || // Not SVG
$.data(container, PROP_NAME)) { // Already done
continue;
}
var svg = null;
try {
svg = document.embeds[i].getSVGDocument();
}
catch(e) {
setTimeout($.svg._registerSVG, 250); // Renesis takes longer to load
return;
}
svg = (svg ? svg.documentElement : null);
if (svg) {
$.svg._afterLoad(container, svg);
}
}
},
/* Post-processing once loaded. */
_afterLoad: function(container, svg, settings) {
settings = settings || this._settings[container.id];
this._settings[container ? container.id : ''] = null;
var wrapper = new this._wrapperClass(svg, container);
$.data(container || svg, PROP_NAME, wrapper);
try {
if (settings.loadURL) { // Load URL
wrapper.load(settings.loadURL, settings);
}
if (settings.settings) { // Additional settings
wrapper.configure(settings.settings);
}
if (settings.onLoad && !settings.loadURL) { // Onload callback
settings.onLoad.apply(container || svg, [wrapper]);
}
}
catch (e) {
alert(e);
}
},
/* Return the SVG wrapper created for a given container.
@param container (string) selector for the container or
(element) the container for the SVG object or
jQuery collection - first entry is the container
@return (SVGWrapper) the corresponding SVG wrapper element, or null if not attached */
_getSVG: function(container) {
container = (typeof container == 'string' ? $(container)[0] :
(container.jquery ? container[0] : container));
return $.data(container, PROP_NAME);
},
/* Remove the SVG functionality from a div.
@param container (element) the container for the SVG object */
_destroySVG: function(container) {
var $container = $(container);
if (!$container.hasClass(this.markerClassName)) {
return;
}
$container.removeClass(this.markerClassName);
if (container.namespaceURI != this.svgNS) {
$container.empty();
}
$.removeData(container, PROP_NAME);
},
/* Extend the SVGWrapper object with an embedded class.
The constructor function must take a single parameter that is
a reference to the owning SVG root object. This allows the
extension to access the basic SVG functionality.
@param name (string) the name of the SVGWrapper attribute to access the new class
@param extClass (function) the extension class constructor */
addExtension: function(name, extClass) {
this._extensions.push([name, extClass]);
}
});
/* The main SVG interface, which encapsulates the SVG element.
Obtain a reference from $().svg('get') */
function SVGWrapper(svg, container) {
this._svg = svg; // The SVG root node
this._container = container; // The containing div
for (var i = 0; i < $.svg._extensions.length; i++) {
var extension = $.svg._extensions[i];
this[extension[0]] = new extension[1](this);
}
}
$.extend(SVGWrapper.prototype, {
/* Retrieve the width of the SVG object. */
_width: function() {
return (this._container ? this._container.clientWidth : this._svg.width);
},
/* Retrieve the height of the SVG object. */
_height: function() {
return (this._container ? this._container.clientHeight : this._svg.height);
},
/* Retrieve the root SVG element.
@return the top-level SVG element */
root: function() {
return this._svg;
},
/* Configure the SVG root.
@param settings (object) additional settings for the root
@param clear (boolean) true to remove existing attributes first,
false to add to what is already there (optional)
@return (SVGWrapper) this root */
configure: function(settings, clear) {
if (clear) {
for (var i = this._svg.attributes.length - 1; i >= 0; i--) {
var attr = this._svg.attributes.item(i);
if (!(attr.nodeName == 'onload' || attr.nodeName == 'version' ||
attr.nodeName.substring(0, 5) == 'xmlns')) {
this._svg.attributes.removeNamedItem(attr.nodeName);
}
}
}
for (var attrName in settings) {
this._svg.setAttribute(attrName, settings[attrName]);
}
return this;
},
/* Locate a specific element in the SVG document.
@param id (string) the element's identifier
@return (element) the element reference, or null if not found */
getElementById: function(id) {
return this._svg.ownerDocument.getElementById(id);
},
/* Change the attributes for a SVG node.
@param element (SVG element) the node to change
@param settings (object) the new settings
@return (SVGWrapper) this root */
change: function(element, settings) {
if (element) {
for (var name in settings) {
if (settings[name] == null) {
element.removeAttribute(name);
}
else {
element.setAttribute(name, settings[name]);
}
}
}
return this;
},
/* Check for parent being absent and adjust arguments accordingly. */
_args: function(values, names, optSettings) {
names.splice(0, 0, 'parent');
names.splice(names.length, 0, 'settings');
var args = {};
var offset = 0;
if (values[0] != null && values[0].jquery) {
values[0] = values[0][0];
}
if (values[0] != null && !(typeof values[0] == 'object' && values[0].nodeName)) {
args['parent'] = null;
offset = 1;
}
for (var i = 0; i < values.length; i++) {
args[names[i + offset]] = values[i];
}
if (optSettings) {
$.each(optSettings, function(i, value) {
if (typeof args[value] == 'object') {
args.settings = args[value];
args[value] = null;
}
});
}
return args;
},
/* Add a title.
@param parent (element or jQuery) the parent node for the new title (optional)
@param text (string) the text of the title
@param settings (object) additional settings for the title (optional)
@return (element) the new title node */
title: function(parent, text, settings) {
var args = this._args(arguments, ['text']);
var node = this._makeNode(args.parent, 'title', args.settings || {});
node.appendChild(this._svg.ownerDocument.createTextNode(args.text));
return node;
},
/* Add a description.
@param parent (element or jQuery) the parent node for the new description (optional)
@param text (string) the text of the description
@param settings (object) additional settings for the description (optional)
@return (element) the new description node */
describe: function(parent, text, settings) {
var args = this._args(arguments, ['text']);
var node = this._makeNode(args.parent, 'desc', args.settings || {});
node.appendChild(this._svg.ownerDocument.createTextNode(args.text));
return node;
},
/* Add a definitions node.
@param parent (element or jQuery) the parent node for the new definitions (optional)
@param id (string) the ID of this definitions (optional)
@param settings (object) additional settings for the definitions (optional)
@return (element) the new definitions node */
defs: function(parent, id, settings) {
var args = this._args(arguments, ['id'], ['id']);
return this._makeNode(args.parent, 'defs', $.extend(
(args.id ? {id: args.id} : {}), args.settings || {}));
},
/* Add a symbol definition.
@param parent (element or jQuery) the parent node for the new symbol (optional)
@param id (string) the ID of this symbol
@param x1 (number) the left coordinate for this symbol
@param y1 (number) the top coordinate for this symbol
@param width (number) the width of this symbol
@param height (number) the height of this symbol
@param settings (object) additional settings for the symbol (optional)
@return (element) the new symbol node */
symbol: function(parent, id, x1, y1, width, height, settings) {
var args = this._args(arguments, ['id', 'x1', 'y1', 'width', 'height']);
return this._makeNode(args.parent, 'symbol', $.extend({id: args.id,
viewBox: args.x1 + ' ' + args.y1 + ' ' + args.width + ' ' + args.height},
args.settings || {}));
},
/* Add a marker definition.
@param parent (element or jQuery) the parent node for the new marker (optional)
@param id (string) the ID of this marker
@param refX (number) the x-coordinate for the reference point
@param refY (number) the y-coordinate for the reference point
@param mWidth (number) the marker viewport width
@param mHeight (number) the marker viewport height
@param orient (string or int) 'auto' or angle (degrees) (optional)
@param settings (object) additional settings for the marker (optional)
@return (element) the new marker node */
marker: function(parent, id, refX, refY, mWidth, mHeight, orient, settings) {
var args = this._args(arguments, ['id', 'refX', 'refY',
'mWidth', 'mHeight', 'orient'], ['orient']);
return this._makeNode(args.parent, 'marker', $.extend(
{id: args.id, refX: args.refX, refY: args.refY, markerWidth: args.mWidth,
markerHeight: args.mHeight, orient: args.orient || 'auto'}, args.settings || {}));
},
/* Add a style node.
@param parent (element or jQuery) the parent node for the new node (optional)
@param styles (string) the CSS styles
@param settings (object) additional settings for the node (optional)
@return (element) the new style node */
style: function(parent, styles, settings) {
var args = this._args(arguments, ['styles']);
var node = this._makeNode(args.parent, 'style', $.extend(
{type: 'text/css'}, args.settings || {}));
node.appendChild(this._svg.ownerDocument.createTextNode(args.styles));
if ($.browser.opera) {
$('head').append('<style type="text/css">' + args.styles + '</style>');
}
return node;
},
/* Add a script node.
@param parent (element or jQuery) the parent node for the new node (optional)
@param script (string) the JavaScript code
@param type (string) the MIME type for the code (optional, default 'text/javascript')
@param settings (object) additional settings for the node (optional)
@return (element) the new script node */
script: function(parent, script, type, settings) {
var args = this._args(arguments, ['script', 'type'], ['type']);
var node = this._makeNode(args.parent, 'script', $.extend(
{type: args.type || 'text/javascript'}, args.settings || {}));
node.appendChild(this._svg.ownerDocument.createTextNode(this._escapeXML(args.script)));
if (!$.browser.mozilla) {
$.globalEval(args.script);
}
return node;
},
/* Add a linear gradient definition.
Specify all of x1, y1, x2, y2 or none of them.
@param parent (element or jQuery) the parent node for the new gradient (optional)
@param id (string) the ID for this gradient
@param stops (string[][]) the gradient stops, each entry is
[0] is offset (0.0-1.0 or 0%-100%), [1] is colour,
[2] is opacity (optional)
@param x1 (number) the x-coordinate of the gradient start (optional)
@param y1 (number) the y-coordinate of the gradient start (optional)
@param x2 (number) the x-coordinate of the gradient end (optional)
@param y2 (number) the y-coordinate of the gradient end (optional)
@param settings (object) additional settings for the gradient (optional)
@return (element) the new gradient node */
linearGradient: function(parent, id, stops, x1, y1, x2, y2, settings) {
var args = this._args(arguments,
['id', 'stops', 'x1', 'y1', 'x2', 'y2'], ['x1']);
var sets = $.extend({id: args.id},
(args.x1 != null ? {x1: args.x1, y1: args.y1, x2: args.x2, y2: args.y2} : {}));
return this._gradient(args.parent, 'linearGradient',
$.extend(sets, args.settings || {}), args.stops);
},
/* Add a radial gradient definition.
Specify all of cx, cy, r, fx, fy or none of them.
@param parent (element or jQuery) the parent node for the new gradient (optional)
@param id (string) the ID for this gradient
@param stops (string[][]) the gradient stops, each entry
[0] is offset, [1] is colour, [2] is opacity (optional)
@param cx (number) the x-coordinate of the largest circle centre (optional)
@param cy (number) the y-coordinate of the largest circle centre (optional)
@param r (number) the radius of the largest circle (optional)
@param fx (number) the x-coordinate of the gradient focus (optional)
@param fy (number) the y-coordinate of the gradient focus (optional)
@param settings (object) additional settings for the gradient (optional)
@return (element) the new gradient node */
radialGradient: function(parent, id, stops, cx, cy, r, fx, fy, settings) {
var args = this._args(arguments,
['id', 'stops', 'cx', 'cy', 'r', 'fx', 'fy'], ['cx']);
var sets = $.extend({id: args.id}, (args.cx != null ?
{cx: args.cx, cy: args.cy, r: args.r, fx: args.fx, fy: args.fy} : {}));
return this._gradient(args.parent, 'radialGradient',
$.extend(sets, args.settings || {}), args.stops);
},
/* Add a gradient node. */
_gradient: function(parent, name, settings, stops) {
var node = this._makeNode(parent, name, settings);
for (var i = 0; i < stops.length; i++) {
var stop = stops[i];
this._makeNode(node, 'stop', $.extend(
{offset: stop[0], stopColor: stop[1]},
(stop[2] != null ? {stopOpacity: stop[2]} : {})));
}
return node;
},
/* Add a pattern definition.
Specify all of vx, vy, xwidth, vheight or none of them.
@param parent (element or jQuery) the parent node for the new pattern (optional)
@param id (string) the ID for this pattern
@param x (number) the x-coordinate for the left edge of the pattern
@param y (number) the y-coordinate for the top edge of the pattern
@param width (number) the width of the pattern
@param height (number) the height of the pattern
@param vx (number) the minimum x-coordinate for view box (optional)
@param vy (number) the minimum y-coordinate for the view box (optional)
@param vwidth (number) the width of the view box (optional)
@param vheight (number) the height of the view box (optional)
@param settings (object) additional settings for the pattern (optional)
@return (element) the new pattern node */
pattern: function(parent, id, x, y, width, height, vx, vy, vwidth, vheight, settings) {
var args = this._args(arguments, ['id', 'x', 'y', 'width', 'height',
'vx', 'vy', 'vwidth', 'vheight'], ['vx']);
var sets = $.extend({id: args.id, x: args.x, y: args.y,
width: args.width, height: args.height}, (args.vx != null ?
{viewBox: args.vx + ' ' + args.vy + ' ' + args.vwidth + ' ' + args.vheight} : {}));
return this._makeNode(args.parent, 'pattern', $.extend(sets, args.settings || {}));
},
/* Add a mask definition.
@param parent (element or jQuery) the parent node for the new mask (optional)
@param id (string) the ID for this mask
@param x (number) the x-coordinate for the left edge of the mask
@param y (number) the y-coordinate for the top edge of the mask
@param width (number) the width of the mask
@param height (number) the height of the mask
@param settings (object) additional settings for the mask (optional)
@return (element) the new mask node */
mask: function(parent, id, x, y, width, height, settings) {
var args = this._args(arguments, ['id', 'x', 'y', 'width', 'height']);
return this._makeNode(args.parent, 'mask', $.extend(
{id: args.id, x: args.x, y: args.y, width: args.width, height: args.height},
args.settings || {}));
},
/* Create a new path object.
@return (SVGPath) a new path object */
createPath: function() {
return new SVGPath();
},
/* Create a new text object.
@return (SVGText) a new text object */
createText: function() {
return new SVGText();
},
/* Add an embedded SVG element.
Specify all of vx, vy, vwidth, vheight or none of them.
@param parent (element or jQuery) the parent node for the new node (optional)
@param x (number) the x-coordinate for the left edge of the node
@param y (number) the y-coordinate for the top edge of the node
@param width (number) the width of the node
@param height (number) the height of the node
@param vx (number) the minimum x-coordinate for view box (optional)
@param vy (number) the minimum y-coordinate for the view box (optional)
@param vwidth (number) the width of the view box (optional)
@param vheight (number) the height of the view box (optional)
@param settings (object) additional settings for the node (optional)
@return (element) the new node */
svg: function(parent, x, y, width, height, vx, vy, vwidth, vheight, settings) {
var args = this._args(arguments, ['x', 'y', 'width', 'height',
'vx', 'vy', 'vwidth', 'vheight'], ['vx']);
var sets = $.extend({x: args.x, y: args.y, width: args.width, height: args.height},
(args.vx != null ? {viewBox: args.vx + ' ' + args.vy + ' ' +
args.vwidth + ' ' + args.vheight} : {}));
return this._makeNode(args.parent, 'svg', $.extend(sets, args.settings || {}));
},
/* Create a group.
@param parent (element or jQuery) the parent node for the new group (optional)
@param id (string) the ID of this group (optional)
@param settings (object) additional settings for the group (optional)
@return (element) the new group node */
group: function(parent, id, settings) {
var args = this._args(arguments, ['id'], ['id']);
return this._makeNode(args.parent, 'g', $.extend({id: args.id}, args.settings || {}));
},
/* Add a usage reference.
Specify all of x, y, width, height or none of them.
@param parent (element or jQuery) the parent node for the new node (optional)
@param x (number) the x-coordinate for the left edge of the node (optional)
@param y (number) the y-coordinate for the top edge of the node (optional)
@param width (number) the width of the node (optional)
@param height (number) the height of the node (optional)
@param ref (string) the ID of the definition node
@param settings (object) additional settings for the node (optional)
@return (element) the new node */
use: function(parent, x, y, width, height, ref, settings) {
var args = this._args(arguments, ['x', 'y', 'width', 'height', 'ref']);
if (typeof args.x == 'string') {
args.ref = args.x;
args.settings = args.y;
args.x = args.y = args.width = args.height = null;
}
var node = this._makeNode(args.parent, 'use', $.extend(
{x: args.x, y: args.y, width: args.width, height: args.height},
args.settings || {}));
node.setAttributeNS($.svg.xlinkNS, 'href', args.ref);
return node;
},
/* Add a link, which applies to all child elements.
@param parent (element or jQuery) the parent node for the new link (optional)
@param ref (string) the target URL
@param settings (object) additional settings for the link (optional)
@return (element) the new link node */
link: function(parent, ref, settings) {
var args = this._args(arguments, ['ref']);
var node = this._makeNode(args.parent, 'a', args.settings);
node.setAttributeNS($.svg.xlinkNS, 'href', args.ref);
return node;
},
/* Add an image.
@param parent (element or jQuery) the parent node for the new image (optional)
@param x (number) the x-coordinate for the left edge of the image
@param y (number) the y-coordinate for the top edge of the image
@param width (number) the width of the image
@param height (number) the height of the image
@param ref (string) the path to the image
@param settings (object) additional settings for the image (optional)
@return (element) the new image node */
image: function(parent, x, y, width, height, ref, settings) {
var args = this._args(arguments, ['x', 'y', 'width', 'height', 'ref']);
var node = this._makeNode(args.parent, 'image', $.extend(
{x: args.x, y: args.y, width: args.width, height: args.height},
args.settings || {}));
node.setAttributeNS($.svg.xlinkNS, 'href', args.ref);
return node;
},
/* Draw a path.
@param parent (element or jQuery) the parent node for the new shape (optional)
@param path (string or SVGPath) the path to draw
@param settings (object) additional settings for the shape (optional)
@return (element) the new shape node */
path: function(parent, path, settings) {
var args = this._args(arguments, ['path']);
return this._makeNode(args.parent, 'path', $.extend(
{d: (args.path.path ? args.path.path() : args.path)}, args.settings || {}));
},
/* Draw a rectangle.
Specify both of rx and ry or neither.
@param parent (element or jQuery) the parent node for the new shape (optional)
@param x (number) the x-coordinate for the left edge of the rectangle
@param y (number) the y-coordinate for the top edge of the rectangle
@param width (number) the width of the rectangle
@param height (number) the height of the rectangle
@param rx (number) the x-radius of the ellipse for the rounded corners (optional)
@param ry (number) the y-radius of the ellipse for the rounded corners (optional)
@param settings (object) additional settings for the shape (optional)
@return (element) the new shape node */
rect: function(parent, x, y, width, height, rx, ry, settings) {
var args = this._args(arguments, ['x', 'y', 'width', 'height', 'rx', 'ry'], ['rx']);
return this._makeNode(args.parent, 'rect', $.extend(
{x: args.x, y: args.y, width: args.width, height: args.height},
(args.rx ? {rx: args.rx, ry: args.ry} : {}), args.settings || {}));
},
/* Draw a circle.
@param parent (element or jQuery) the parent node for the new shape (optional)
@param cx (number) the x-coordinate for the centre of the circle
@param cy (number) the y-coordinate for the centre of the circle
@param r (number) the radius of the circle
@param settings (object) additional settings for the shape (optional)
@return (element) the new shape node */
circle: function(parent, cx, cy, r, settings) {
var args = this._args(arguments, ['cx', 'cy', 'r']);
return this._makeNode(args.parent, 'circle', $.extend(
{cx: args.cx, cy: args.cy, r: args.r}, args.settings || {}));
},
/* Draw an ellipse.
@param parent (element or jQuery) the parent node for the new shape (optional)
@param cx (number) the x-coordinate for the centre of the ellipse
@param cy (number) the y-coordinate for the centre of the ellipse
@param rx (number) the x-radius of the ellipse
@param ry (number) the y-radius of the ellipse
@param settings (object) additional settings for the shape (optional)
@return (element) the new shape node */
ellipse: function(parent, cx, cy, rx, ry, settings) {
var args = this._args(arguments, ['cx', 'cy', 'rx', 'ry']);
return this._makeNode(args.parent, 'ellipse', $.extend(
{cx: args.cx, cy: args.cy, rx: args.rx, ry: args.ry}, args.settings || {}));
},
/* Draw a line.
@param parent (element or jQuery) the parent node for the new shape (optional)
@param x1 (number) the x-coordinate for the start of the line
@param y1 (number) the y-coordinate for the start of the line
@param x2 (number) the x-coordinate for the end of the line
@param y2 (number) the y-coordinate for the end of the line
@param settings (object) additional settings for the shape (optional)
@return (element) the new shape node */
line: function(parent, x1, y1, x2, y2, settings) {
var args = this._args(arguments, ['x1', 'y1', 'x2', 'y2']);
return this._makeNode(args.parent, 'line', $.extend(
{x1: args.x1, y1: args.y1, x2: args.x2, y2: args.y2}, args.settings || {}));
},
/* Draw a polygonal line.
@param parent (element or jQuery) the parent node for the new shape (optional)
@param points (number[][]) the x-/y-coordinates for the points on the line
@param settings (object) additional settings for the shape (optional)
@return (element) the new shape node */
polyline: function(parent, points, settings) {
var args = this._args(arguments, ['points']);
return this._poly(args.parent, 'polyline', args.points, args.settings);
},
/* Draw a polygonal shape.
@param parent (element or jQuery) the parent node for the new shape (optional)
@param points (number[][]) the x-/y-coordinates for the points on the shape
@param settings (object) additional settings for the shape (optional)
@return (element) the new shape node */
polygon: function(parent, points, settings) {
var args = this._args(arguments, ['points']);
return this._poly(args.parent, 'polygon', args.points, args.settings);
},
/* Draw a polygonal line or shape. */
_poly: function(parent, name, points, settings) {
var ps = '';
for (var i = 0; i < points.length; i++) {
ps += points[i].join() + ' ';
}
return this._makeNode(parent, name, $.extend(
{points: $.trim(ps)}, settings || {}));
},
/* Draw text.
Specify both of x and y or neither of them.
@param parent (element or jQuery) the parent node for the text (optional)
@param x (number or number[]) the x-coordinate(s) for the text (optional)
@param y (number or number[]) the y-coordinate(s) for the text (optional)
@param value (string) the text content or
(SVGText) text with spans and references
@param settings (object) additional settings for the text (optional)
@return (element) the new text node */
text: function(parent, x, y, value, settings) {
var args = this._args(arguments, ['x', 'y', 'value']);
if (typeof args.x == 'string' && arguments.length < 4) {
args.value = args.x;
args.settings = args.y;
args.x = args.y = null;
}
return this._text(args.parent, 'text', args.value, $.extend(
{x: (args.x && isArray(args.x) ? args.x.join(' ') : args.x),
y: (args.y && isArray(args.y) ? args.y.join(' ') : args.y)},
args.settings || {}));
},
/* Draw text along a path.
@param parent (element or jQuery) the parent node for the text (optional)
@param path (string) the ID of the path
@param value (string) the text content or
(SVGText) text with spans and references
@param settings (object) additional settings for the text (optional)
@return (element) the new text node */
textpath: function(parent, path, value, settings) {
var args = this._args(arguments, ['path', 'value']);
var node = this._text(args.parent, 'textPath', args.value, args.settings || {});
node.setAttributeNS($.svg.xlinkNS, 'href', args.path);
return node;
},
/* Draw text. */
_text: function(parent, name, value, settings) {
var node = this._makeNode(parent, name, settings);
if (typeof value == 'string') {
node.appendChild(node.ownerDocument.createTextNode(value));
}
else {
for (var i = 0; i < value._parts.length; i++) {
var part = value._parts[i];
if (part[0] == 'tspan') {
var child = this._makeNode(node, part[0], part[2]);
child.appendChild(node.ownerDocument.createTextNode(part[1]));
node.appendChild(child);
}
else if (part[0] == 'tref') {
var child = this._makeNode(node, part[0], part[2]);
child.setAttributeNS($.svg.xlinkNS, 'href', part[1]);
node.appendChild(child);
}
else if (part[0] == 'textpath') {
var set = $.extend({}, part[2]);
set.href = null;
var child = this._makeNode(node, part[0], set);
child.setAttributeNS($.svg.xlinkNS, 'href', part[2].href);
child.appendChild(node.ownerDocument.createTextNode(part[1]));
node.appendChild(child);
}
else { // straight text
node.appendChild(node.ownerDocument.createTextNode(part[1]));
}
}
}
return node;
},
/* Add a custom SVG element.
@param parent (element or jQuery) the parent node for the new element (optional)
@param name (string) the name of the element
@param settings (object) additional settings for the element (optional)
@return (element) the new custom node */
other: function(parent, name, settings) {
var args = this._args(arguments, ['name']);
return this._makeNode(args.parent, args.name, args.settings || {});
},
/* Create a shape node with the given settings. */
_makeNode: function(parent, nodeName, settings) {
parent = parent || this._svg;
var node = this._svg.ownerDocument.createElementNS($.svg.svgNS, nodeName);
for (var name in settings) {
var value = settings[name];
if (value != null && value != null && name != 'title' &&
(typeof value != 'string' || value != '')) {
node.setAttribute($.svg._attrNames[name] || name, value);
}
}
parent.appendChild(node);
return node;
},
/* Add an existing SVG node to the diagram.
@param parent (element or jQuery) the parent node for the new node (optional)
@param node (element) the new node to add or
(string) the jQuery selector for the node or
(jQuery collection) set of nodes to add
@return (SVGWrapper) this wrapper */
add: function(parent, node) {
var args = this._args((arguments.length == 1 ? [null, parent] : arguments), ['node']);
var svg = this;
args.parent = args.parent || this._svg;
try {
if ($.svg._renesis) {
throw 'Force traversal';
}
args.parent.appendChild(args.node.cloneNode(true));
}
catch (e) {
args.node = (args.node.jquery ? args.node : $(args.node));
args.node.each(function() {
var child = svg._cloneAsSVG(this);
if (child) {
args.parent.appendChild(child);
}
});
}
return this;
},
/* SVG nodes must belong to the SVG namespace, so clone and ensure this is so. */
_cloneAsSVG: function(node) {
var newNode = null;
if (node.nodeType == 1) { // element
newNode = this._svg.ownerDocument.createElementNS(
$.svg.svgNS, this._checkName(node.nodeName));
for (var i = 0; i < node.attributes.length; i++) {
var attr = node.attributes.item(i);
if (attr.nodeName != 'xmlns' && attr.nodeValue) {
if (attr.prefix == 'xlink') {
newNode.setAttributeNS($.svg.xlinkNS, attr.localName, attr.nodeValue);
}
else {
newNode.setAttribute(this._checkName(attr.nodeName), attr.nodeValue);
}
}
}
for (var i = 0; i < node.childNodes.length; i++) {
var child = this._cloneAsSVG(node.childNodes[i]);
if (child) {
newNode.appendChild(child);
}
}
}
else if (node.nodeType == 3) { // text
if ($.trim(node.nodeValue)) {
newNode = this._svg.ownerDocument.createTextNode(node.nodeValue);
}
}
else if (node.nodeType == 4) { // CDATA
if ($.trim(node.nodeValue)) {
try {
newNode = this._svg.ownerDocument.createCDATASection(node.nodeValue);
}
catch (e) {
newNode = this._svg.ownerDocument.createTextNode(
node.nodeValue.replace(/&/g, '&').
replace(/</g, '<').replace(/>/g, '>'));
}
}
}
return newNode;
},
/* Node names must be lower case and without SVG namespace prefix. */
_checkName: function(name) {
name = (name.substring(0, 1) >= 'A' && name.substring(0, 1) <= 'Z' ?
name.toLowerCase() : name);
return (name.substring(0, 4) == 'svg:' ? name.substring(4) : name);
},
/* Load an external SVG document.
@param url (string) the location of the SVG document or
the actual SVG content
@param settings (boolean) see addTo below or
(function) see onLoad below or
(object) additional settings for the load with attributes below:
addTo (boolean) true to add to what's already there,
or false to clear the canvas first
changeSize (boolean) true to allow the canvas size to change,
or false to retain the original
onLoad (function) callback after the document has loaded,
'this' is the container, receives SVG object and
optional error message as a parameter
@return (SVGWrapper) this root */
load: function(url, settings) {
settings = (typeof settings == 'boolean'? {addTo: settings} :
(typeof settings == 'function'? {onLoad: settings} : settings || {}));
if (!settings.addTo) {
this.clear(false);
}
var size = [this._svg.getAttribute('width'), this._svg.getAttribute('height')];
var wrapper = this;
// Report a problem with the load
var reportError = function(message) {
message = $.svg.local.errorLoadingText + ': ' + message;
if (settings.onLoad) {
settings.onLoad.apply(wrapper._container || wrapper._svg, [wrapper, message]);
}
else {
wrapper.text(null, 10, 20, message);
}
};
// Create a DOM from SVG content
var loadXML4IE = function(data) {
var xml = new ActiveXObject('Microsoft.XMLDOM');
xml.validateOnParse = false;
xml.resolveExternals = false;
xml.async = false;
xml.loadXML(data);
if (xml.parseError.errorCode != 0) {
reportError(xml.parseError.reason);
return null;
}
return xml;
};
// Load the SVG DOM
var loadSVG = function(data) {
if (!data) {
return;
}
if (data.documentElement.nodeName != 'svg') {
var errors = data.getElementsByTagName('parsererror');
var messages = (errors.length ? errors[0].getElementsByTagName('div') : []); // Safari
reportError(!errors.length ? '???' :
(messages.length ? messages[0] : errors[0]).firstChild.nodeValue);
return;
}
var attrs = {};
for (var i = 0; i < data.documentElement.attributes.length; i++) {
var attr = data.documentElement.attributes.item(i);
if (!(attr.nodeName == 'version' || attr.nodeName.substring(0, 5) == 'xmlns')) {
attrs[attr.nodeName] = attr.nodeValue;
}
}
wrapper.configure(attrs, true);
var nodes = data.documentElement.childNodes;
for (var i = 0; i < nodes.length; i++) {
try {
if ($.svg._renesis) {
throw 'Force traversal';
}
wrapper._svg.appendChild(nodes[i].cloneNode(true));
if (nodes[i].nodeName == 'script') {
$.globalEval(nodes[i].textContent);
}
}
catch (e) {
wrapper.add(null, nodes[i]);
}
}
if (!settings.changeSize) {
wrapper.configure({width: size[0], height: size[1]});
}
if (settings.onLoad) {
settings.onLoad.apply(wrapper._container || wrapper._svg, [wrapper]);
}
};
if (url.match('<svg')) { // Inline SVG
loadSVG($.browser.msie ? loadXML4IE(url) :
new DOMParser().parseFromString(url, 'text/xml'));
}
else { // Remote SVG
$.ajax({url: url, dataType: ($.browser.msie ? 'text' : 'xml'),
success: function(xml) {
loadSVG($.browser.msie ? loadXML4IE(xml) : xml);
}, error: function(http, message, exc) {
reportError(message + (exc ? ' ' + exc.message : ''));
}});
}
return this;
},
/* Delete a specified node.