forked from DmitryBaranovskiy/raphael
/
raphael.svg.js
1360 lines (1350 loc) · 53.8 KB
/
raphael.svg.js
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// ┌─────────────────────────────────────────────────────────────────────┐ \\
// │ Raphaël - JavaScript Vector Library │ \\
// ├─────────────────────────────────────────────────────────────────────┤ \\
// │ SVG Module │ \\
// ├─────────────────────────────────────────────────────────────────────┤ \\
// │ Copyright (c) 2008-2011 Dmitry Baranovskiy (http://raphaeljs.com) │ \\
// │ Copyright (c) 2008-2011 Sencha Labs (http://sencha.com) │ \\
// │ Licensed under the MIT (http://raphaeljs.com/license.html) license. │ \\
// └─────────────────────────────────────────────────────────────────────┘ \\
window.Raphael.svg && function (R) {
var has = "hasOwnProperty",
Str = String,
toFloat = parseFloat,
toInt = parseInt,
math = Math,
mmax = math.max,
abs = math.abs,
pow = math.pow,
separator = /[, ]+/,
eve = R.eve,
E = "",
S = " ";
var xlink = "http://www.w3.org/1999/xlink",
markers = {
block: "M5,0 0,2.5 5,5z",
classic: "M5,0 0,2.5 5,5 3.5,3 3.5,2z",
diamond: "M2.5,0 5,2.5 2.5,5 0,2.5z",
open: "M6,1 1,3.5 6,6",
oval: "M2.5,0A2.5,2.5,0,0,1,2.5,5 2.5,2.5,0,0,1,2.5,0z"
},
markerCounter = {};
R.toString = function () {
return "Your browser supports SVG.\nYou are running Rapha\xebl " + this.version;
};
var $ = function (el, attr) {
if (attr) {
if (typeof el == "string") {
el = $(el);
}
for (var key in attr) if (attr[has](key)) {
if (key.substring(0, 6) == "xlink:") {
el.setAttributeNS(xlink, key.substring(6), Str(attr[key]));
} else {
el.setAttribute(key, Str(attr[key]));
}
}
} else {
el = R._g.doc.createElementNS("http://www.w3.org/2000/svg", el);
el.style && (el.style.webkitTapHighlightColor = "rgba(0,0,0,0)");
}
return el;
},
addGradientFill = function (element, gradient) {
var type = "linear",
id = element.id + gradient,
fx = .5, fy = .5,
o = element.node,
SVG = element.paper,
s = o.style,
el = R._g.doc.getElementById(id);
if (!el) {
gradient = Str(gradient).replace(R._radial_gradient, function (all, _fx, _fy) {
type = "radial";
if (_fx && _fy) {
fx = toFloat(_fx);
fy = toFloat(_fy);
var dir = ((fy > .5) * 2 - 1);
pow(fx - .5, 2) + pow(fy - .5, 2) > .25 &&
(fy = math.sqrt(.25 - pow(fx - .5, 2)) * dir + .5) &&
fy != .5 &&
(fy = fy.toFixed(5) - 1e-5 * dir);
}
return E;
});
gradient = gradient.split(/\s*\-\s*/);
if (type == "linear") {
var angle = gradient.shift();
angle = -toFloat(angle);
if (isNaN(angle)) {
return null;
}
var vector = [0, 0, math.cos(R.rad(angle)), math.sin(R.rad(angle))],
max = 1 / (mmax(abs(vector[2]), abs(vector[3])) || 1);
vector[2] *= max;
vector[3] *= max;
if (vector[2] < 0) {
vector[0] = -vector[2];
vector[2] = 0;
}
if (vector[3] < 0) {
vector[1] = -vector[3];
vector[3] = 0;
}
}
var dots = R._parseDots(gradient);
if (!dots) {
return null;
}
id = id.replace(/[\(\)\s,\xb0#]/g, "_");
if (element.gradient && id != element.gradient.id) {
SVG.defs.removeChild(element.gradient);
delete element.gradient;
}
if (!element.gradient) {
el = $(type + "Gradient", {id: id});
element.gradient = el;
$(el, type == "radial" ? {
fx: fx,
fy: fy
} : {
x1: vector[0],
y1: vector[1],
x2: vector[2],
y2: vector[3],
gradientTransform: element.matrix.invert()
});
SVG.defs.appendChild(el);
for (var i = 0, ii = dots.length; i < ii; i++) {
el.appendChild($("stop", {
offset: dots[i].offset ? dots[i].offset : i ? "100%" : "0%",
"stop-color": dots[i].color || "#fff"
}));
}
}
}
$(o, {
fill: "url(#" + id + ")",
opacity: 1,
"fill-opacity": 1
});
s.fill = E;
s.opacity = 1;
s.fillOpacity = 1;
return 1;
},
updatePosition = function (o) {
var bbox = o.getBBox(1);
$(o.pattern, {patternTransform: o.matrix.invert() + " translate(" + bbox.x + "," + bbox.y + ")"});
},
addArrow = function (o, value, isEnd) {
if (o.type == "path") {
var values = Str(value).toLowerCase().split("-"),
p = o.paper,
se = isEnd ? "end" : "start",
node = o.node,
attrs = o.attrs,
stroke = attrs["stroke-width"],
i = values.length,
type = "classic",
from,
to,
dx,
refX,
attr,
w = 3,
h = 3,
t = 5;
while (i--) {
switch (values[i]) {
case "block":
case "classic":
case "oval":
case "diamond":
case "open":
case "none":
type = values[i];
break;
case "wide": h = 5; break;
case "narrow": h = 2; break;
case "long": w = 5; break;
case "short": w = 2; break;
}
}
if (type == "open") {
w += 2;
h += 2;
t += 2;
dx = 1;
refX = isEnd ? 4 : 1;
attr = {
fill: "none",
stroke: attrs.stroke
};
} else {
refX = dx = w / 2;
attr = {
fill: attrs.stroke,
stroke: "none"
};
}
if (o._.arrows) {
if (isEnd) {
o._.arrows.endPath && markerCounter[o._.arrows.endPath]--;
o._.arrows.endMarker && markerCounter[o._.arrows.endMarker]--;
} else {
o._.arrows.startPath && markerCounter[o._.arrows.startPath]--;
o._.arrows.startMarker && markerCounter[o._.arrows.startMarker]--;
}
} else {
o._.arrows = {};
}
if (type != "none") {
var pathId = "raphael-marker-" + type,
markerId = "raphael-marker-" + se + type + w + h;
if (!R._g.doc.getElementById(pathId)) {
p.defs.appendChild($($("path"), {
"stroke-linecap": "round",
d: markers[type],
id: pathId
}));
markerCounter[pathId] = 1;
} else {
markerCounter[pathId]++;
}
var marker = R._g.doc.getElementById(markerId),
use;
if (!marker) {
marker = $($("marker"), {
id: markerId,
markerHeight: h,
markerWidth: w,
orient: "auto",
refX: refX,
refY: h / 2
});
use = $($("use"), {
"xlink:href": "#" + pathId,
transform: (isEnd ? "rotate(180 " + w / 2 + " " + h / 2 + ") " : E) + "scale(" + w / t + "," + h / t + ")",
"stroke-width": (1 / ((w / t + h / t) / 2)).toFixed(4)
});
marker.appendChild(use);
p.defs.appendChild(marker);
markerCounter[markerId] = 1;
} else {
markerCounter[markerId]++;
use = marker.getElementsByTagName("use")[0];
}
$(use, attr);
var delta = dx * (type != "diamond" && type != "oval");
if (isEnd) {
from = o._.arrows.startdx * stroke || 0;
to = R.getTotalLength(attrs.path) - delta * stroke;
} else {
from = delta * stroke;
to = R.getTotalLength(attrs.path) - (o._.arrows.enddx * stroke || 0);
}
attr = {};
attr["marker-" + se] = "url(#" + markerId + ")";
if (to || from) {
attr.d = Raphael.getSubpath(attrs.path, from, to);
}
$(node, attr);
o._.arrows[se + "Path"] = pathId;
o._.arrows[se + "Marker"] = markerId;
o._.arrows[se + "dx"] = delta;
o._.arrows[se + "Type"] = type;
o._.arrows[se + "String"] = value;
} else {
if (isEnd) {
from = o._.arrows.startdx * stroke || 0;
to = R.getTotalLength(attrs.path) - from;
} else {
from = 0;
to = R.getTotalLength(attrs.path) - (o._.arrows.enddx * stroke || 0);
}
o._.arrows[se + "Path"] && $(node, {d: Raphael.getSubpath(attrs.path, from, to)});
delete o._.arrows[se + "Path"];
delete o._.arrows[se + "Marker"];
delete o._.arrows[se + "dx"];
delete o._.arrows[se + "Type"];
delete o._.arrows[se + "String"];
}
for (attr in markerCounter) if (markerCounter[has](attr) && !markerCounter[attr]) {
var item = R._g.doc.getElementById(attr);
item && item.parentNode.removeChild(item);
}
}
},
dasharray = {
"": [0],
"none": [0],
"-": [3, 1],
".": [1, 1],
"-.": [3, 1, 1, 1],
"-..": [3, 1, 1, 1, 1, 1],
". ": [1, 3],
"- ": [4, 3],
"--": [8, 3],
"- .": [4, 3, 1, 3],
"--.": [8, 3, 1, 3],
"--..": [8, 3, 1, 3, 1, 3]
},
addDashes = function (o, value, params) {
value = dasharray[Str(value).toLowerCase()];
if (value) {
var width = o.attrs["stroke-width"] || "1",
butt = {round: width, square: width, butt: 0}[o.attrs["stroke-linecap"] || params["stroke-linecap"]] || 0,
dashes = [],
i = value.length;
while (i--) {
dashes[i] = value[i] * width + ((i % 2) ? 1 : -1) * butt;
}
$(o.node, {"stroke-dasharray": dashes.join(",")});
}
},
setFillAndStroke = function (o, params) {
var node = o.node,
attrs = o.attrs,
vis = node.style.visibility;
node.style.visibility = "hidden";
for (var att in params) {
if (params[has](att)) {
if (!R._availableAttrs[has](att)) {
continue;
}
var value = params[att];
attrs[att] = value;
switch (att) {
case "blur":
o.blur(value);
break;
case "href":
case "title":
case "target":
var pn = node.parentNode;
if (pn.tagName.toLowerCase() != "a") {
var hl = $("a");
pn.insertBefore(hl, node);
hl.appendChild(node);
pn = hl;
}
if (att == "target") {
pn.setAttributeNS(xlink, "show", value == "blank" ? "new" : value);
} else {
pn.setAttributeNS(xlink, att, value);
}
break;
case "cursor":
node.style.cursor = value;
break;
case "transform":
o.transform(value);
break;
case "arrow-start":
addArrow(o, value);
break;
case "arrow-end":
addArrow(o, value, 1);
break;
case "clip-rect":
var rect = Str(value).split(separator);
if (rect.length == 4) {
o.clip && o.clip.parentNode.parentNode.removeChild(o.clip.parentNode);
var el = $("clipPath"),
rc = $("rect");
el.id = R.createUUID();
$(rc, {
x: rect[0],
y: rect[1],
width: rect[2],
height: rect[3]
});
el.appendChild(rc);
o.paper.defs.appendChild(el);
$(node, {"clip-path": "url(#" + el.id + ")"});
o.clip = rc;
}
if (!value) {
var path = node.getAttribute("clip-path");
if (path) {
var clip = R._g.doc.getElementById(path.replace(/(^url\(#|\)$)/g, E));
clip && clip.parentNode.removeChild(clip);
$(node, {"clip-path": E});
delete o.clip;
}
}
break;
case "path":
if (o.type == "path") {
$(node, {d: value ? attrs.path = R._pathToAbsolute(value) : "M0,0"});
o._.dirty = 1;
if (o._.arrows) {
"startString" in o._.arrows && addArrow(o, o._.arrows.startString);
"endString" in o._.arrows && addArrow(o, o._.arrows.endString, 1);
}
}
break;
case "width":
node.setAttribute(att, value);
o._.dirty = 1;
if (attrs.fx) {
att = "x";
value = attrs.x;
} else {
break;
}
case "x":
if (attrs.fx) {
value = -attrs.x - (attrs.width || 0);
}
case "rx":
if (att == "rx" && o.type == "rect") {
break;
}
case "cx":
node.setAttribute(att, value);
o.pattern && updatePosition(o);
o._.dirty = 1;
break;
case "height":
node.setAttribute(att, value);
o._.dirty = 1;
if (attrs.fy) {
att = "y";
value = attrs.y;
} else {
break;
}
case "y":
if (attrs.fy) {
value = -attrs.y - (attrs.height || 0);
}
case "ry":
if (att == "ry" && o.type == "rect") {
break;
}
case "cy":
node.setAttribute(att, value);
o.pattern && updatePosition(o);
o._.dirty = 1;
break;
case "r":
if (o.type == "rect") {
$(node, {rx: value, ry: value});
} else {
node.setAttribute(att, value);
}
o._.dirty = 1;
break;
case "src":
if (o.type == "image") {
node.setAttributeNS(xlink, "href", value);
}
break;
case "stroke-width":
if (o._.sx != 1 || o._.sy != 1) {
value /= mmax(abs(o._.sx), abs(o._.sy)) || 1;
}
if (o.paper._vbSize) {
value *= o.paper._vbSize;
}
node.setAttribute(att, value);
if (attrs["stroke-dasharray"]) {
addDashes(o, attrs["stroke-dasharray"], params);
}
if (o._.arrows) {
"startString" in o._.arrows && addArrow(o, o._.arrows.startString);
"endString" in o._.arrows && addArrow(o, o._.arrows.endString, 1);
}
break;
case "stroke-dasharray":
addDashes(o, value, params);
break;
case "fill":
var isURL = Str(value).match(R._ISURL);
if (isURL) {
el = $("pattern");
var ig = $("image");
el.id = R.createUUID();
$(el, {x: 0, y: 0, patternUnits: "userSpaceOnUse", height: 1, width: 1});
$(ig, {x: 0, y: 0, "xlink:href": isURL[1]});
el.appendChild(ig);
(function (el) {
R._preload(isURL[1], function () {
var w = this.offsetWidth,
h = this.offsetHeight;
$(el, {width: w, height: h});
$(ig, {width: w, height: h});
o.paper.safari();
});
})(el);
o.paper.defs.appendChild(el);
$(node, {fill: "url(#" + el.id + ")"});
o.pattern = el;
o.pattern && updatePosition(o);
break;
}
var clr = R.getRGB(value);
if (!clr.error) {
delete params.gradient;
delete attrs.gradient;
!R.is(attrs.opacity, "undefined") &&
R.is(params.opacity, "undefined") &&
$(node, {opacity: attrs.opacity});
!R.is(attrs["fill-opacity"], "undefined") &&
R.is(params["fill-opacity"], "undefined") &&
$(node, {"fill-opacity": attrs["fill-opacity"]});
} else if ((o.type == "circle" || o.type == "ellipse" || Str(value).charAt() != "r") && addGradientFill(o, value)) {
if ("opacity" in attrs || "fill-opacity" in attrs) {
var gradient = R._g.doc.getElementById(node.getAttribute("fill").replace(/^url\(#|\)$/g, E));
if (gradient) {
var stops = gradient.getElementsByTagName("stop");
$(stops[stops.length - 1], {"stop-opacity": ("opacity" in attrs ? attrs.opacity : 1) * ("fill-opacity" in attrs ? attrs["fill-opacity"] : 1)});
}
}
attrs.gradient = value;
attrs.fill = "none";
break;
}
clr[has]("opacity") && $(node, {"fill-opacity": clr.opacity > 1 ? clr.opacity / 100 : clr.opacity});
case "stroke":
clr = R.getRGB(value);
node.setAttribute(att, clr.hex);
att == "stroke" && clr[has]("opacity") && $(node, {"stroke-opacity": clr.opacity > 1 ? clr.opacity / 100 : clr.opacity});
if (att == "stroke" && o._.arrows) {
"startString" in o._.arrows && addArrow(o, o._.arrows.startString);
"endString" in o._.arrows && addArrow(o, o._.arrows.endString, 1);
}
break;
case "gradient":
(o.type == "circle" || o.type == "ellipse" || Str(value).charAt() != "r") && addGradientFill(o, value);
break;
case "opacity":
if (attrs.gradient && !attrs[has]("stroke-opacity")) {
$(node, {"stroke-opacity": value > 1 ? value / 100 : value});
}
// fall
case "fill-opacity":
if (attrs.gradient) {
gradient = R._g.doc.getElementById(node.getAttribute("fill").replace(/^url\(#|\)$/g, E));
if (gradient) {
stops = gradient.getElementsByTagName("stop");
$(stops[stops.length - 1], {"stop-opacity": value});
}
break;
}
default:
att == "font-size" && (value = toInt(value, 10) + "px");
var cssrule = att.replace(/(\-.)/g, function (w) {
return w.substring(1).toUpperCase();
});
node.style[cssrule] = value;
o._.dirty = 1;
node.setAttribute(att, value);
break;
}
}
}
tuneText(o, params);
node.style.visibility = vis;
},
leading = 1.2,
tuneText = function (el, params) {
if (el.type != "text" || !(params[has]("text") || params[has]("font") || params[has]("font-size") || params[has]("x") || params[has]("y"))) {
return;
}
var a = el.attrs,
node = el.node,
fontSize = node.firstChild ? toInt(R._g.doc.defaultView.getComputedStyle(node.firstChild, E).getPropertyValue("font-size"), 10) : 10;
if (params[has]("text")) {
a.text = params.text;
while (node.firstChild) {
node.removeChild(node.firstChild);
}
var texts = Str(params.text).split("\n"),
tspans = [],
tspan;
for (var i = 0, ii = texts.length; i < ii; i++) {
tspan = $("tspan");
i && $(tspan, {dy: fontSize * leading, x: a.x});
tspan.appendChild(R._g.doc.createTextNode(texts[i]));
node.appendChild(tspan);
tspans[i] = tspan;
}
} else {
tspans = node.getElementsByTagName("tspan");
for (i = 0, ii = tspans.length; i < ii; i++) if (i) {
$(tspans[i], {dy: fontSize * leading, x: a.x});
} else {
$(tspans[0], {dy: 0});
}
}
$(node, {x: a.x, y: a.y});
el._.dirty = 1;
var bb = el._getBBox(),
dif = a.y - (bb.y + bb.height / 2);
dif && R.is(dif, "finite") && $(tspans[0], {dy: dif});
},
Element = function (node, svg) {
var X = 0,
Y = 0;
/*\
* Element.node
[ property (object) ]
**
* Gives you a reference to the DOM object, so you can assign event handlers or just mess around.
**
* Note: Don’t mess with it.
> Usage
| // draw a circle at coordinate 10,10 with radius of 10
| var c = paper.circle(10, 10, 10);
| c.node.onclick = function () {
| c.attr("fill", "red");
| };
\*/
this[0] = this.node = node;
/*\
* Element.raphael
[ property (object) ]
**
* Internal reference to @Raphael object. In case it is not available.
> Usage
| Raphael.el.red = function () {
| var hsb = this.paper.raphael.rgb2hsb(this.attr("fill"));
| hsb.h = 1;
| this.attr({fill: this.paper.raphael.hsb2rgb(hsb).hex});
| }
\*/
node.raphael = true;
/*\
* Element.id
[ property (number) ]
**
* Unique id of the element. Especially usesful when you want to listen to events of the element,
* because all events are fired in format `<module>.<action>.<id>`. Also useful for @Paper.getById method.
\*/
this.id = R._oid++;
node.raphaelid = this.id;
this.matrix = R.matrix();
this.realPath = null;
/*\
* Element.paper
[ property (object) ]
**
* Internal reference to “paper” where object drawn. Mainly for use in plugins and element extensions.
> Usage
| Raphael.el.cross = function () {
| this.attr({fill: "red"});
| this.paper.path("M10,10L50,50M50,10L10,50")
| .attr({stroke: "red"});
| }
\*/
this.paper = svg;
this.attrs = this.attrs || {};
this._ = {
transform: [],
sx: 1,
sy: 1,
deg: 0,
dx: 0,
dy: 0,
dirty: 1
};
!svg.bottom && (svg.bottom = this);
/*\
* Element.prev
[ property (object) ]
**
* Reference to the previous element in the hierarchy.
\*/
this.prev = svg.top;
svg.top && (svg.top.next = this);
svg.top = this;
/*\
* Element.next
[ property (object) ]
**
* Reference to the next element in the hierarchy.
\*/
this.next = null;
},
elproto = R.el;
Element.prototype = elproto;
elproto.constructor = Element;
R._engine.path = function (pathString, SVG) {
var el = $("path");
SVG.canvas && SVG.canvas.appendChild(el);
var p = new Element(el, SVG);
p.type = "path";
setFillAndStroke(p, {
fill: "none",
stroke: "#000",
path: pathString
});
return p;
};
/*\
* Element.rotate
[ method ]
**
* Deprecated! Use @Element.transform instead.
* Adds rotation by given angle around given point to the list of
* transformations of the element.
> Parameters
- deg (number) angle in degrees
- cx (number) #optional x coordinate of the centre of rotation
- cy (number) #optional y coordinate of the centre of rotation
* If cx & cy aren’t specified centre of the shape is used as a point of rotation.
= (object) @Element
\*/
elproto.rotate = function (deg, cx, cy) {
if (this.removed) {
return this;
}
deg = Str(deg).split(separator);
if (deg.length - 1) {
cx = toFloat(deg[1]);
cy = toFloat(deg[2]);
}
deg = toFloat(deg[0]);
(cy == null) && (cx = cy);
if (cx == null || cy == null) {
var bbox = this.getBBox(1);
cx = bbox.x + bbox.width / 2;
cy = bbox.y + bbox.height / 2;
}
this.transform(this._.transform.concat([["r", deg, cx, cy]]));
return this;
};
/*\
* Element.scale
[ method ]
**
* Deprecated! Use @Element.transform instead.
* Adds scale by given amount relative to given point to the list of
* transformations of the element.
> Parameters
- sx (number) horisontal scale amount
- sy (number) vertical scale amount
- cx (number) #optional x coordinate of the centre of scale
- cy (number) #optional y coordinate of the centre of scale
* If cx & cy aren’t specified centre of the shape is used instead.
= (object) @Element
\*/
elproto.scale = function (sx, sy, cx, cy) {
if (this.removed) {
return this;
}
sx = Str(sx).split(separator);
if (sx.length - 1) {
sy = toFloat(sx[1]);
cx = toFloat(sx[2]);
cy = toFloat(sx[3]);
}
sx = toFloat(sx[0]);
(sy == null) && (sy = sx);
(cy == null) && (cx = cy);
if (cx == null || cy == null) {
var bbox = this.getBBox(1);
}
cx = cx == null ? bbox.x + bbox.width / 2 : cx;
cy = cy == null ? bbox.y + bbox.height / 2 : cy;
this.transform(this._.transform.concat([["s", sx, sy, cx, cy]]));
return this;
};
/*\
* Element.translate
[ method ]
**
* Deprecated! Use @Element.transform instead.
* Adds translation by given amount to the list of transformations of the element.
> Parameters
- dx (number) horisontal shift
- dy (number) vertical shift
= (object) @Element
\*/
elproto.translate = function (dx, dy) {
if (this.removed) {
return this;
}
dx = Str(dx).split(separator);
if (dx.length - 1) {
dy = toFloat(dx[1]);
}
dx = toFloat(dx[0]) || 0;
dy = +dy || 0;
this.transform(this._.transform.concat([["t", dx, dy]]));
return this;
};
/*\
* Element.transform
[ method ]
**
* Adds transformation to the element which is separate to other attributes,
* i.e. translation doesn’t change `x` or `y` of the rectange. The format
* of transformation string is similar to the path string syntax:
| "t100,100r30,100,100s2,2,100,100r45s1.5"
* Each letter is a command. There are four commands: `t` is for translate, `r` is for rotate, `s` is for
* scale and `m` is for matrix.
*
* There are also alternative “absolute” translation, rotation and scale: `T`, `R` and `S`. They will not take previous transformation into account. For example, `...T100,0` will always move element 100 px horisontally, while `...t100,0` could move it vertically if there is `r90` before. Just compare results of `r90t100,0` and `r90T100,0`.
*
* So, the example line above could be read like “translate by 100, 100; rotate 30° around 100, 100; scale twice around 100, 100;
* rotate 45° around centre; scale 1.5 times relative to centre”. As you can see rotate and scale commands have origin
* coordinates as optional parameters, the default is the centre point of the element.
* Matrix accepts six parameters.
> Usage
| var el = paper.rect(10, 20, 300, 200);
| // translate 100, 100, rotate 45°, translate -100, 0
| el.transform("t100,100r45t-100,0");
| // if you want you can append or prepend transformations
| el.transform("...t50,50");
| el.transform("s2...");
| // or even wrap
| el.transform("t50,50...t-50-50");
| // to reset transformation call method with empty string
| el.transform("");
| // to get current value call it without parameters
| console.log(el.transform());
> Parameters
- tstr (string) #optional transformation string
* If tstr isn’t specified
= (string) current transformation string
* else
= (object) @Element
\*/
elproto.transform = function (tstr) {
var _ = this._;
if (tstr == null) {
return _.transform;
}
R._extractTransform(this, tstr);
this.clip && $(this.clip, {transform: this.matrix.invert()});
this.pattern && updatePosition(this);
this.node && $(this.node, {transform: this.matrix});
if (_.sx != 1 || _.sy != 1) {
var sw = this.attrs[has]("stroke-width") ? this.attrs["stroke-width"] : 1;
this.attr({"stroke-width": sw});
}
return this;
};
/*\
* Element.hide
[ method ]
**
* Makes element invisible. See @Element.show.
= (object) @Element
\*/
elproto.hide = function () {
!this.removed && this.paper.safari(this.node.style.display = "none");
return this;
};
/*\
* Element.show
[ method ]
**
* Makes element visible. See @Element.hide.
= (object) @Element
\*/
elproto.show = function () {
!this.removed && this.paper.safari(this.node.style.display = "");
return this;
};
/*\
* Element.remove
[ method ]
**
* Removes element form the paper.
\*/
elproto.remove = function () {
if (this.removed || !this.node.parentNode) {
return;
}
var paper = this.paper;
paper.__set__ && paper.__set__.exclude(this);
eve.unbind("raphael.*.*." + this.id);
if (this.gradient) {
paper.defs.removeChild(this.gradient);
}
R._tear(this, paper);
if (this.node.parentNode.tagName.toLowerCase() == "a") {
this.node.parentNode.parentNode.removeChild(this.node.parentNode);
} else {
this.node.parentNode.removeChild(this.node);
}
for (var i in this) {
this[i] = typeof this[i] == "function" ? R._removedFactory(i) : null;
}
this.removed = true;
};
elproto._getBBox = function () {
if (this.node.style.display == "none") {
this.show();
var hide = true;
}
var bbox = {};
try {
bbox = this.node.getBBox();
} catch(e) {
// Firefox 3.0.x plays badly here
} finally {
bbox = bbox || {};
}
hide && this.hide();
return bbox;
};
/*\
* Element.attr
[ method ]
**
* Sets the attributes of the element.
> Parameters
- attrName (string) attribute’s name
- value (string) value
* or
- params (object) object of name/value pairs
* or
- attrName (string) attribute’s name
* or
- attrNames (array) in this case method returns array of current values for given attribute names
= (object) @Element if attrsName & value or params are passed in.
= (...) value of the attribute if only attrsName is passed in.
= (array) array of values of the attribute if attrsNames is passed in.
= (object) object of attributes if nothing is passed in.
> Possible parameters
# <p>Please refer to the <a href="http://www.w3.org/TR/SVG/" title="The W3C Recommendation for the SVG language describes these properties in detail.">SVG specification</a> for an explanation of these parameters.</p>
o arrow-end (string) arrowhead on the end of the path. The format for string is `<type>[-<width>[-<length>]]`. Possible types: `classic`, `block`, `open`, `oval`, `diamond`, `none`, width: `wide`, `narrow`, `midium`, length: `long`, `short`, `midium`.
o clip-rect (string) comma or space separated values: x, y, width and height
o cursor (string) CSS type of the cursor
o cx (number) the x-axis coordinate of the center of the circle, or ellipse
o cy (number) the y-axis coordinate of the center of the circle, or ellipse
o fill (string) colour, gradient or image
o fill-opacity (number)
o font (string)
o font-family (string)
o font-size (number) font size in pixels
o font-weight (string)
o height (number)
o href (string) URL, if specified element behaves as hyperlink
o opacity (number)
o path (string) SVG path string format
o r (number) radius of the circle, ellipse or rounded corner on the rect
o rx (number) horisontal radius of the ellipse
o ry (number) vertical radius of the ellipse
o src (string) image URL, only works for @Element.image element
o stroke (string) stroke colour
o stroke-dasharray (string) [“”, “`-`”, “`.`”, “`-.`”, “`-..`”, “`. `”, “`- `”, “`--`”, “`- .`”, “`--.`”, “`--..`”]
o stroke-linecap (string) [“`butt`”, “`square`”, “`round`”]
o stroke-linejoin (string) [“`bevel`”, “`round`”, “`miter`”]
o stroke-miterlimit (number)
o stroke-opacity (number)
o stroke-width (number) stroke width in pixels, default is '1'
o target (string) used with href
o text (string) contents of the text element. Use `\n` for multiline text
o text-anchor (string) [“`start`”, “`middle`”, “`end`”], default is “`middle`”
o title (string) will create tooltip with a given text
o transform (string) see @Element.transform
o width (number)
o x (number)
o y (number)
> Gradients
* Linear gradient format: “`‹angle›-‹colour›[-‹colour›[:‹offset›]]*-‹colour›`”, example: “`90-#fff-#000`” – 90°
* gradient from white to black or “`0-#fff-#f00:20-#000`” – 0° gradient from white via red (at 20%) to black.
*
* radial gradient: “`r[(‹fx›, ‹fy›)]‹colour›[-‹colour›[:‹offset›]]*-‹colour›`”, example: “`r#fff-#000`” –
* gradient from white to black or “`r(0.25, 0.75)#fff-#000`” – gradient from white to black with focus point
* at 0.25, 0.75. Focus point coordinates are in 0..1 range. Radial gradients can only be applied to circles and ellipses.
> Path String
# <p>Please refer to <a href="http://www.w3.org/TR/SVG/paths.html#PathData" title="Details of a path’s data attribute’s format are described in the SVG specification.">SVG documentation regarding path string</a>. Raphaël fully supports it.</p>
> Colour Parsing
# <ul>
# <li>Colour name (“<code>red</code>”, “<code>green</code>”, “<code>cornflowerblue</code>”, etc)</li>
# <li>#••• — shortened HTML colour: (“<code>#000</code>”, “<code>#fc0</code>”, etc)</li>
# <li>#•••••• — full length HTML colour: (“<code>#000000</code>”, “<code>#bd2300</code>”)</li>
# <li>rgb(•••, •••, •••) — red, green and blue channels’ values: (“<code>rgb(200, 100, 0)</code>”)</li>
# <li>rgb(•••%, •••%, •••%) — same as above, but in %: (“<code>rgb(100%, 175%, 0%)</code>”)</li>
# <li>rgba(•••, •••, •••, •••) — red, green and blue channels’ values: (“<code>rgba(200, 100, 0, .5)</code>”)</li>
# <li>rgba(•••%, •••%, •••%, •••%) — same as above, but in %: (“<code>rgba(100%, 175%, 0%, 50%)</code>”)</li>
# <li>hsb(•••, •••, •••) — hue, saturation and brightness values: (“<code>hsb(0.5, 0.25, 1)</code>”)</li>
# <li>hsb(•••%, •••%, •••%) — same as above, but in %</li>
# <li>hsba(•••, •••, •••, •••) — same as above, but with opacity</li>
# <li>hsl(•••, •••, •••) — almost the same as hsb, see <a href="http://en.wikipedia.org/wiki/HSL_and_HSV" title="HSL and HSV - Wikipedia, the free encyclopedia">Wikipedia page</a></li>
# <li>hsl(•••%, •••%, •••%) — same as above, but in %</li>
# <li>hsla(•••, •••, •••, •••) — same as above, but with opacity</li>
# <li>Optionally for hsb and hsl you could specify hue as a degree: “<code>hsl(240deg, 1, .5)</code>” or, if you want to go fancy, “<code>hsl(240°, 1, .5)</code>”</li>
# </ul>
\*/
elproto.attr = function (name, value) {
if (this.removed) {
return this;
}
if (name == null) {
var res = {};
for (var a in this.attrs) if (this.attrs[has](a)) {
res[a] = this.attrs[a];
}
res.gradient && res.fill == "none" && (res.fill = res.gradient) && delete res.gradient;
res.transform = this._.transform;
return res;
}