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SVG.Element = function Element(n) {
this.node = n;
this.attrs = {};
this._s = ('size family weight stretch variant style').split(' ');
};
// Add element-specific functions
SVG.extend(SVG.Element, {
// move element to given x and y values
move: function(x, y) {
return this.attr({ x: x, y: y });
},
// set element size to given width and height
size: function(w, h) {
return this.attr({ width: w, height: h });
},
// remove element
remove: function() {
return this.parent != null ? this.parent.remove(this) : void 0;
},
// get parent document
parentDoc: function() {
return this._parent(SVG.Doc);
},
// get parent svg wrapper
mother: function() {
return this.parentDoc();
},
// set svg element attribute
attr: function(a, v, n) {
if (arguments.length < 2) {
if (typeof a == 'object')
for (v in a) this.attr(v, a[v]);
else if (this._isStyle(a))
return a == 'text' ?
this.content :
a == 'leading' ?
this[a] :
this.style[a];
else
return this.attrs[a];
} else if (this._isStyle(a)) {
a == 'text' ?
this.text(v) :
a == 'leading' ?
this[a] = v :
this.style[a] = v;
this.text(this.content);
} else {
this.attrs[a] = v;
if (a == 'x' && this._isText())
for (var i = this.lines.length - 1; i >= 0; i--)
this.lines[i].attr(a, v);
else
n != null ?
this.node.setAttributeNS(n, a, v) :
this.node.setAttribute(a, v);
}
return this;
},
// transformations
transform: function(t, r) {
var n = [],
s = this.attr('transform') || '',
l = s.match(/([a-z]+\([^\)]+\))/g) || [];
if (r !== true) {
var v = t.match(/^([A-Za-z\-]+)/)[1],
r = new RegExp('^' + v);
for (var i = 0, s = l.length; i < s; i++)
if (!r.test(l[i]))
n.push(l[i]);
} else
n = l;
n.push(t);
return this.attr('transform', n.join(' '));
},
// get bounding box
bbox: function() {
var b = this.node.getBBox();
b.cx = b.x + b.width / 2;
b.cy = b.y + b.height / 2;
return b;
},
// private: find svg parent
_parent: function(pt) {
var e = this;
while (e != null && !(e instanceof pt))
e = e.parent;
return e;
},
// private: is this text style
_isStyle: function(a) {
return typeof a == 'string' && this._isText() ? (/^font|text|leading/).test(a) : false;
},
// private: element type tester
_isText: function() {
return this instanceof SVG.Text;
}
});
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