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Raphael.fn.connection = function (obj1, obj2, line, bg) {
if (obj1.line && obj1.from && obj1.to) {
line = obj1;
obj1 = line.from;
obj2 = line.to;
}
var bb1 = obj1.getBBox(),
bb2 = obj2.getBBox();
var x1 = bb1.x+bb1.width/2,
y1 = bb1.y+bb1.height,
x2 = bb2.x+bb2.width/2,
y2 = bb2.y;
var path = ["M", x1, y1, "L", x2, y2];
if (line && line.line) {
line.bg && line.bg.attr({path: path});
line.line.attr({path: path});
} else {
var color = typeof line == "string" ? line : "#000";
return {
bg: bg && bg.split && this.path(path).attr({stroke: bg.split("|")[0], fill: "none", "stroke-width": bg.split("|")[1] || 3}),
line: this.path(path).attr({stroke: color, fill: "none"}),
from: obj1,
to: obj2
};
}
};
var el;
window.onload = function () {
var color, i, ii, tempS, tempT,
dragger = function () {
// Original coords for main element
this.ox = this.type == "ellipse" ? this.attr("cx") : this.attr("x");
this.oy = this.type == "ellipse" ? this.attr("cy") : this.attr("y");
if (this.type != "text") this.animate({"fill-opacity": .2}, 500);
// Original coords for pair element
this.pair.ox = this.pair.type == "ellipse" ? this.pair.attr("cx") : this.pair.attr("x");
this.pair.oy = this.pair.type == "ellipse" ? this.pair.attr("cy") : this.pair.attr("y");
if (this.pair.type != "text") this.pair.animate({"fill-opacity": .2}, 500);
},
move = function (dx, dy) {
// Move main element
var att = {x: this.ox + dx, y: this.oy + dy};
this.attr(att);
// Move paired element
att = {x: this.pair.ox + dx, y: this.pair.oy + dy};
this.pair.attr(att);
// Move connections
for (i = connections.length; i--;) {
r.connection(connections[i]);
}
r.safari();
},
up = function () {
// Fade original element on mouse up
if (this.type != "text") this.animate({"fill-opacity": 0}, 500);
// Fade paired element on mouse up
if (this.pair.type != "text") this.pair.animate({"fill-opacity": 0}, 500);
snapToGrid(this);
snapToGrid(this.pair);
},
grid = {a:null, b:null, c:null};
function snapToGrid(obj)
{
var n = null;
if (obj.type == "text") {
sy = 160;
ty = 150;
} else {
sy = 150;
ty = 160;
}
if (obj.getBBox().y != sy) {
att = {y: sy};
obj.attr(att);
att = {y: ty};
obj.pair.attr(att);
for (i = connections.length; i--;) {
r.connection(connections[i]);
}
}
}
r = Raphael("holder", 640, 480),
connections = [],
source = ["das", "ist ein", "kleines", "haus"],
target = ["this", "is a", "small", "house"],
csz = 7;
padding = 15,
inner_pad = 5,
begin = 10,
texts = [],
shapes = [],
texts.push(r.text(padding, 110, source[0]).attr({'text-anchor': 'start'})),
texts.push(r.text(padding+texts[0].getBBox().x2, 110, source[1]).attr({'text-anchor': 'start'}))
texts.push(r.text(padding+texts[1].getBBox().x2, 110, source[2]).attr({'text-anchor': 'start'}))
texts.push(r.text(padding+texts[2].getBBox().x2, 110, source[3]).attr({'text-anchor': 'start'}))
shapes.push(r.rect(padding-inner_pad, 100, texts[0].getBBox().width+(2*inner_pad), 20))
shapes.push(r.rect(shapes[0].getBBox().x2+inner_pad, 100, texts[1].getBBox().width+(2*inner_pad), 20))
shapes.push(r.rect(shapes[1].getBBox().x2+inner_pad, 100, texts[2].getBBox().width+(2*inner_pad), 20))
shapes.push(r.rect(shapes[2].getBBox().x2+inner_pad, 100, texts[3].getBBox().width+(2*inner_pad), 20))
texts.push(r.text(padding, 160, target[0]).attr({'text-anchor': 'start'})),
texts.push(r.text(padding+texts[4].getBBox().x2, 160, target[1]).attr({'text-anchor': 'start'}))
texts.push(r.text(padding+texts[5].getBBox().x2, 160, target[2]).attr({'text-anchor': 'start'}))
texts.push(r.text(padding+texts[6].getBBox().x2, 160, target[3]).attr({'text-anchor': 'start'}))
shapes.push(r.rect(padding-inner_pad, 150, texts[4].getBBox().width+(2*inner_pad), 20))
shapes.push(r.rect(shapes[4].getBBox().x2+inner_pad, 150, texts[5].getBBox().width+(2*inner_pad), 20))
shapes.push(r.rect(shapes[5].getBBox().x2+inner_pad, 150, texts[6].getBBox().width+(2*inner_pad), 20))
shapes.push(r.rect(shapes[6].getBBox().x2+inner_pad, 150, texts[7].getBBox().width+(2*inner_pad), 20))
for (i = 0, ii = shapes.length; i < ii; i++) {
tempS = shapes[i].attr({fill: "#aaa", stroke: "#000", "fill-opacity": 0, "stroke-width": 1, cursor: "move"});
tempT = texts[i].attr({fill: "#000", stroke: "none", cursor: "move"});
if (i >= 4) {
shapes[i].drag(move, dragger, up);
texts[i].drag(move, dragger, up);
}
// Associate the elements
tempS.pair = tempT;
tempT.pair = tempS;
}
connections.push(r.connection(shapes[0], shapes[4], "#000"));
connections.push(r.connection(shapes[1], shapes[5], "#000"));
connections.push(r.connection(shapes[2], shapes[6], "#000"));
connections.push(r.connection(shapes[3], shapes[7], "#000"));
};
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