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/**
* Begin a group of glyphs that will always be moved, scaled and highlighted together
*/
var roundNumber = require("./round-number");
function Group() {
this.ingroup = false;
}
Group.prototype.beginGroup = function (paper, controller) {
this.paper = paper;
this.controller = controller;
this.path = [];
this.lastM = [0, 0];
this.ingroup = true;
this.paper.openGroup();
};
Group.prototype.isInGroup = function () {
return this.ingroup;
}
Group.prototype.addPath = function (path) {
path = path || [];
if (path.length === 0) return;
path[0][0] = "m";
path[0][1] = roundNumber(path[0][1] - this.lastM[0]);
path[0][2] = roundNumber(path[0][2] - this.lastM[1]);
this.lastM[0] += path[0][1];
this.lastM[1] += path[0][2];
this.path.push(path[0]);
for (var i = 1, ii = path.length; i < ii; i++) {
if (path[i][0] === "m") {
this.lastM[0] += path[i][1];
this.lastM[1] += path[i][2];
}
this.path.push(path[i]);
}
};
/**
* End a group of glyphs that will always be moved, scaled and highlighted together
*/
Group.prototype.endGroup = function (klass, name) {
this.ingroup = false;
//if (this.path.length === 0) return null;
var path = "";
for (var i = 0; i < this.path.length; i++)
path += this.path[i].join(" ");
this.path = [];
var ret = this.paper.closeGroup();
if (ret) {
ret.setAttribute("class", this.controller.classes.generate(klass))
ret.setAttribute("fill", this.controller.renderer.foregroundColor)
ret.setAttribute("stroke", "none")
ret.setAttribute("data-name", name)
}
return ret;
};
// There is just a singleton of this object.
var elementGroup = new Group();
module.exports = elementGroup;
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