g.raphael.js

/*!
 * g.Raphael 0.4.1 - Charting library, based on Raphaël
 *
 * Copyright (c) 2009 Dmitry Baranovskiy (http://g.raphaeljs.com)
 * Licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) license.
 */
 
 
(function () {
    var mmax = Math.max,
        mmin = Math.min;
    Raphael.fn.g = Raphael.fn.g || {};
    Raphael.fn.g.markers = {
        disc: "disc",
        o: "disc",
        flower: "flower",
        f: "flower",
        diamond: "diamond",
        d: "diamond",
        square: "square",
        s: "square",
        triangle: "triangle",
        t: "triangle",
        star: "star",
        "*": "star",
        cross: "cross",
        x: "cross",
        plus: "plus",
        "+": "plus",
        arrow: "arrow",
        "->": "arrow"
    };
    Raphael.fn.g.shim = {stroke: "none", fill: "#000", "fill-opacity": 0};
    Raphael.fn.g.txtattr = {font: "12px Arial, sans-serif"};
    Raphael.fn.g.colors = [];
    var hues = [.6, .2, .05, .1333, .75, 0];
    for (var i = 0; i < 10; i++) {
        if (i < hues.length) {
            Raphael.fn.g.colors.push("hsb(" + hues[i] + ", .75, .75)");
        } else {
            Raphael.fn.g.colors.push("hsb(" + hues[i - hues.length] + ", 1, .5)");
        }
    }
    Raphael.fn.g.text = function (x, y, text) {
        return this.text(x, y, text).attr(this.g.txtattr);
    };
    Raphael.fn.g.labelise = function (label, val, total) {
        if (label) {
            return (label + "").replace(/(##+(?:\.#+)?)|(%%+(?:\.%+)?)/g, function (all, value, percent) {
                if (value) {
                    return (+val).toFixed(value.replace(/^#+\.?/g, "").length);
                }
                if (percent) {
                    return (val * 100 / total).toFixed(percent.replace(/^%+\.?/g, "").length) + "%";
                }
            });
        } else {
            return (+val).toFixed(0);
        }
    };

    Raphael.fn.g.finger = function (x, y, width, height, dir, ending, isPath) {
        // dir 0 for horisontal and 1 for vertical
        if ((dir && !height) || (!dir && !width)) {
            return isPath ? "" : this.path();
        }
        ending = {square: "square", sharp: "sharp", soft: "soft"}[ending] || "round";
        var path;
        height = Math.round(height);
        width = Math.round(width);
        x = Math.round(x);
        y = Math.round(y);
        switch (ending) {
            case "round":
            if (!dir) {
                var r = ~~(height / 2);
                if (width < r) {
                    r = width;
                    path = ["M", x + .5, y + .5 - ~~(height / 2), "l", 0, 0, "a", r, ~~(height / 2), 0, 0, 1, 0, height, "l", 0, 0, "z"];
                } else {
                    path = ["M", x + .5, y + .5 - r, "l", width - r, 0, "a", r, r, 0, 1, 1, 0, height, "l", r - width, 0, "z"];
                }
            } else {
                r = ~~(width / 2);
                if (height < r) {
                    r = height;
                    path = ["M", x - ~~(width / 2), y, "l", 0, 0, "a", ~~(width / 2), r, 0, 0, 1, width, 0, "l", 0, 0, "z"];
                } else {
                    path = ["M", x - r, y, "l", 0, r - height, "a", r, r, 0, 1, 1, width, 0, "l", 0, height - r, "z"];
                }
            }
            break;
            case "sharp":
            if (!dir) {
                var half = ~~(height / 2);
                path = ["M", x, y + half, "l", 0, -height, mmax(width - half, 0), 0, mmin(half, width), half, -mmin(half, width), half + (half * 2 < height), "z"];
            } else {
                half = ~~(width / 2);
                path = ["M", x + half, y, "l", -width, 0, 0, -mmax(height - half, 0), half, -mmin(half, height), half, mmin(half, height), half, "z"];
            }
            break;
            case "square":
            if (!dir) {
                path = ["M", x, y + ~~(height / 2), "l", 0, -height, width, 0, 0, height, "z"];
            } else {
                path = ["M", x + ~~(width / 2), y, "l", 1 - width, 0, 0, -height, width - 1, 0, "z"];
            }
            break;
            case "soft":
            if (!dir) {
                r = mmin(width, Math.round(height / 5));
                path = ["M", x + .5, y + .5 - ~~(height / 2), "l", width - r, 0, "a", r, r, 0, 0, 1, r, r, "l", 0, height - r * 2, "a", r, r, 0, 0, 1, -r, r, "l", r - width, 0, "z"];
            } else {
                r = mmin(Math.round(width / 5), height);
                path = ["M", x - ~~(width / 2), y, "l", 0, r - height, "a", r, r, 0, 0, 1, r, -r, "l", width - 2 * r, 0, "a", r, r, 0, 0, 1, r, r, "l", 0, height - r, "z"];
            }
        }
        if (isPath) {
            return path.join(",");
        } else {
            return this.path(path);
        }
    };

    // Symbols
    Raphael.fn.g.disc = function (cx, cy, r) {
        return this.circle(cx, cy, r);
    };
    Raphael.fn.g.line = function (cx, cy, r) {
        return this.rect(cx - r, cy - r / 5, 2 * r, 2 * r / 5);
    };
    Raphael.fn.g.square = function (cx, cy, r) {
        r = r * .7;
        return this.rect(cx - r, cy - r, 2 * r, 2 * r);
    };
    Raphael.fn.g.triangle = function (cx, cy, r) {
        r *= 1.75;
        return this.path("M".concat(cx, ",", cy, "m0-", r * .58, "l", r * .5, ",", r * .87, "-", r, ",0z"));
    };
    Raphael.fn.g.diamond = function (cx, cy, r) {
        return this.path(["M", cx, cy - r, "l", r, r, -r, r, -r, -r, r, -r, "z"]);
    };
    Raphael.fn.g.flower = function (cx, cy, r, n) {
        r = r * 1.25;
        var rout = r,
            rin = rout * .5;
        n = +n < 3 || !n ? 5 : n;
        var points = ["M", cx, cy + rin, "Q"],
            R;
        for (var i = 1; i < n * 2 + 1; i++) {
            R = i % 2 ? rout : rin;
            points = points.concat([+(cx + R * Math.sin(i * Math.PI / n)).toFixed(3), +(cy + R * Math.cos(i * Math.PI / n)).toFixed(3)]);
        }
        points.push("z");
        return this.path(points.join(","));
    };
    Raphael.fn.g.star = function (cx, cy, r, r2, rays) {
        r2 = r2 || r * .382;
        rays = rays || 5;
        var points = ["M", cx, cy + r2, "L"],
            R;
        for (var i = 1; i < rays * 2; i++) {
            R = i % 2 ? r : r2;
            points = points.concat([(cx + R * Math.sin(i * Math.PI / rays)), (cy + R * Math.cos(i * Math.PI / rays))]);
        }
        points.push("z");
        return this.path(points.join(","));
    };
    Raphael.fn.g.cross = function (cx, cy, r) {
        r = r / 2.5;
        return this.path("M".concat(cx - r, ",", cy, "l", [-r, -r, r, -r, r, r, r, -r, r, r, -r, r, r, r, -r, r, -r, -r, -r, r, -r, -r, "z"]));
    };
    Raphael.fn.g.plus = function (cx, cy, r) {
        r = r / 2;
        return this.path("M".concat(cx - r / 2, ",", cy - r / 2, "l", [0, -r, r, 0, 0, r, r, 0, 0, r, -r, 0, 0, r, -r, 0, 0, -r, -r, 0, 0, -r, "z"]));
    };
    Raphael.fn.g.arrow = function (cx, cy, r) {
        return this.path("M".concat(cx - r * .7, ",", cy - r * .4, "l", [r * .6, 0, 0, -r * .4, r, r * .8, -r, r * .8, 0, -r * .4, -r * .6, 0], "z"));
    };

    // Tooltips
    Raphael.fn.g.tag = function (x, y, text, angle, r) {
        angle = angle || 0;
        r = r == null ? 5 : r;
        text = text == null ? "$9.99" : text;
        var R = .5522 * r,
            res = this.set(),
            d = 3;
        res.push(this.path().attr({fill: "#000", stroke: "#000"}));
        res.push(this.text(x, y, text).attr(this.g.txtattr).attr({fill: "#fff", "font-family": "Helvetica, Arial"}));
        res.update = function () {
            this.rotate(0, x, y);
            var bb = this[1].getBBox();
            if (bb.height >= r * 2) {
                this[0].attr({path: ["M", x, y + r, "a", r, r, 0, 1, 1, 0, -r * 2, r, r, 0, 1, 1, 0, r * 2, "m", 0, -r * 2 -d, "a", r + d, r + d, 0, 1, 0, 0, (r + d) * 2, "L", x + r + d, y + bb.height / 2 + d, "l", bb.width + 2 * d, 0, 0, -bb.height - 2 * d, -bb.width - 2 * d, 0, "L", x, y - r - d].join(",")});
            } else {
                var dx = Math.sqrt(Math.pow(r + d, 2) - Math.pow(bb.height / 2 + d, 2));
                this[0].attr({path: ["M", x, y + r, "c", -R, 0, -r, R - r, -r, -r, 0, -R, r - R, -r, r, -r, R, 0, r, r - R, r, r, 0, R, R - r, r, -r, r, "M", x + dx, y - bb.height / 2 - d, "a", r + d, r + d, 0, 1, 0, 0, bb.height + 2 * d, "l", r + d - dx + bb.width + 2 * d, 0, 0, -bb.height - 2 * d, "L", x + dx, y - bb.height / 2 - d].join(",")});
            }
            this[1].attr({x: x + r + d + bb.width / 2, y: y});
            angle = (360 - angle) % 360;
            this.rotate(angle, x, y);
            angle > 90 && angle < 270 && this[1].attr({x: x - r - d - bb.width / 2, y: y, rotation: [180 + angle, x, y]});
            return this;
        };
        res.update();
        return res;
    };
    Raphael.fn.g.popupit = function (x, y, set, dir, size) {
        dir = dir == null ? 2 : dir;
        size = size || 5;
        x = Math.round(x);
        y = Math.round(y);
        var bb = set.getBBox(),
            w = Math.round(bb.width / 2),
            h = Math.round(bb.height / 2),
            dx = [0, w + size * 2, 0, -w - size * 2],
            dy = [-h * 2 - size * 3, -h - size, 0, -h - size],
            p = ["M", x - dx[dir], y - dy[dir], "l", -size, (dir == 2) * -size, -mmax(w - size, 0), 0, "a", size, size, 0, 0, 1, -size, -size,
                "l", 0, -mmax(h - size, 0), (dir == 3) * -size, -size, (dir == 3) * size, -size, 0, -mmax(h - size, 0), "a", size, size, 0, 0, 1, size, -size,
                "l", mmax(w - size, 0), 0, size, !dir * -size, size, !dir * size, mmax(w - size, 0), 0, "a", size, size, 0, 0, 1, size, size,
                "l", 0, mmax(h - size, 0), (dir == 1) * size, size, (dir == 1) * -size, size, 0, mmax(h - size, 0), "a", size, size, 0, 0, 1, -size, size,
                "l", -mmax(w - size, 0), 0, "z"].join(","),
            xy = [{x: x, y: y + size * 2 + h}, {x: x - size * 2 - w, y: y}, {x: x, y: y - size * 2 - h}, {x: x + size * 2 + w, y: y}][dir];
        set.translate(xy.x - w - bb.x, xy.y - h - bb.y);
        return this.path(p).attr({fill: "#000", stroke: "none"}).insertBefore(set.node ? set : set[0]);
    };
    Raphael.fn.g.popup = function (x, y, text, dir, size) {
        dir = dir == null ? 2 : dir > 3 ? 3 : dir;
        size = size || 5;
        text = text || "$9.99";
        var res = this.set(),
            d = 3;
        res.push(this.path().attr({fill: "#000", stroke: "#000"}));
        res.push(this.text(x, y, text).attr(this.g.txtattr).attr({fill: "#fff", "font-family": "Helvetica, Arial"}));
        res.update = function (X, Y, withAnimation) {
            X = X || x;
            Y = Y || y;
            var bb = this[1].getBBox(),
                w = bb.width / 2,
                h = bb.height / 2,
                dx = [0, w + size * 2, 0, -w - size * 2],
                dy = [-h * 2 - size * 3, -h - size, 0, -h - size],
                p = ["M", X - dx[dir], Y - dy[dir], "l", -size, (dir == 2) * -size, -mmax(w - size, 0), 0, "a", size, size, 0, 0, 1, -size, -size,
                    "l", 0, -mmax(h - size, 0), (dir == 3) * -size, -size, (dir == 3) * size, -size, 0, -mmax(h - size, 0), "a", size, size, 0, 0, 1, size, -size,
                    "l", mmax(w - size, 0), 0, size, !dir * -size, size, !dir * size, mmax(w - size, 0), 0, "a", size, size, 0, 0, 1, size, size,
                    "l", 0, mmax(h - size, 0), (dir == 1) * size, size, (dir == 1) * -size, size, 0, mmax(h - size, 0), "a", size, size, 0, 0, 1, -size, size,
                    "l", -mmax(w - size, 0), 0, "z"].join(","),
                xy = [{x: X, y: Y + size * 2 + h}, {x: X - size * 2 - w, y: Y}, {x: X, y: Y - size * 2 - h}, {x: X + size * 2 + w, y: Y}][dir];
            xy.path = p;
            if (withAnimation) {
                this.animate(xy, 500, ">");
            } else {
                this.attr(xy);
            }
            return this;
        };
        return res.update(x, y);
    };
    Raphael.fn.g.flag = function (x, y, text, angle) {
        angle = angle || 0;
        text = text || "$9.99";
        var res = this.set(),
            d = 3;
        res.push(this.path().attr({fill: "#000", stroke: "#000"}));
        res.push(this.text(x, y, text).attr(this.g.txtattr).attr({fill: "#fff", "font-family": "Helvetica, Arial"}));
        res.update = function (x, y) {
            this.rotate(0, x, y);
            var bb = this[1].getBBox(),
                h = bb.height / 2;
            this[0].attr({path: ["M", x, y, "l", h + d, -h - d, bb.width + 2 * d, 0, 0, bb.height + 2 * d, -bb.width - 2 * d, 0, "z"].join(",")});
            this[1].attr({x: x + h + d + bb.width / 2, y: y});
            angle = 360 - angle;
            this.rotate(angle, x, y);
            angle > 90 && angle < 270 && this[1].attr({x: x - r - d - bb.width / 2, y: y, rotation: [180 + angle, x, y]});
            return this;
        };
        return res.update(x, y);
    };
    Raphael.fn.g.label = function (x, y, text) {
        var res = this.set();
        res.push(this.rect(x, y, 10, 10).attr({stroke: "none", fill: "#000"}));
        res.push(this.text(x, y, text).attr(this.g.txtattr).attr({fill: "#fff"}));
        res.update = function () {
            var bb = this[1].getBBox(),
                r = mmin(bb.width + 10, bb.height + 10) / 2;
            this[0].attr({x: bb.x - r / 2, y: bb.y - r / 2, width: bb.width + r, height: bb.height + r, r: r});
        };
        res.update();
        return res;
    };
    Raphael.fn.g.labelit = function (set) {
        var bb = set.getBBox(),
            r = mmin(20, bb.width + 10, bb.height + 10) / 2;
        return this.rect(bb.x - r / 2, bb.y - r / 2, bb.width + r, bb.height + r, r).attr({stroke: "none", fill: "#000"}).insertBefore(set.node ? set : set[0]);
    };
    Raphael.fn.g.drop = function (x, y, text, size, angle) {
        size = size || 30;
        angle = angle || 0;
        var res = this.set();
        res.push(this.path(["M", x, y, "l", size, 0, "A", size * .4, size * .4, 0, 1, 0, x + size * .7, y - size * .7, "z"]).attr({fill: "#000", stroke: "none", rotation: [22.5 - angle, x, y]}));
        angle = (angle + 90) * Math.PI / 180;
        res.push(this.text(x + size * Math.sin(angle), y + size * Math.cos(angle), text).attr(this.g.txtattr).attr({"font-size": size * 12 / 30, fill: "#fff"}));
        res.drop = res[0];
        res.text = res[1];
        return res;
    };
    Raphael.fn.g.blob = function (x, y, text, angle, size) {
        angle = (+angle + 1 ? angle : 45) + 90;
        size = size || 12;
        var rad = Math.PI / 180,
            fontSize = size * 12 / 12;
        var res = this.set();
        res.push(this.path().attr({fill: "#000", stroke: "none"}));
        res.push(this.text(x + size * Math.sin((angle) * rad), y + size * Math.cos((angle) * rad) - fontSize / 2, text).attr(this.g.txtattr).attr({"font-size": fontSize, fill: "#fff"}));
        res.update = function (X, Y, withAnimation) {
            X = X || x;
            Y = Y || y;
            var bb = this[1].getBBox(),
                w = mmax(bb.width + fontSize, size * 25 / 12),
                h = mmax(bb.height + fontSize, size * 25 / 12),
                x2 = X + size * Math.sin((angle - 22.5) * rad),
                y2 = Y + size * Math.cos((angle - 22.5) * rad),
                x1 = X + size * Math.sin((angle + 22.5) * rad),
                y1 = Y + size * Math.cos((angle + 22.5) * rad),
                dx = (x1 - x2) / 2,
                dy = (y1 - y2) / 2,
                rx = w / 2,
                ry = h / 2,
                k = -Math.sqrt(Math.abs(rx * rx * ry * ry - rx * rx * dy * dy - ry * ry * dx * dx) / (rx * rx * dy * dy + ry * ry * dx * dx)),
                cx = k * rx * dy / ry + (x1 + x2) / 2,
                cy = k * -ry * dx / rx + (y1 + y2) / 2;
            if (withAnimation) {
                this.animate({x: cx, y: cy, path: ["M", x, y, "L", x1, y1, "A", rx, ry, 0, 1, 1, x2, y2, "z"].join(",")}, 500, ">");
            } else {
                this.attr({x: cx, y: cy, path: ["M", x, y, "L", x1, y1, "A", rx, ry, 0, 1, 1, x2, y2, "z"].join(",")});
            }
            return this;
        };
        res.update(x, y);
        return res;
    };

    Raphael.fn.g.colorValue = function (value, total, s, b) {
        return "hsb(" + [mmin((1 - value / total) * .4, 1), s || .75, b || .75] + ")";
    };

    Raphael.fn.g.snapEnds = function (from, to, steps) {
        var f = from,
            t = to;
        if (f == t) {
            return {from: f, to: t, power: 0};
        }
        function round(a) {
            return Math.abs(a - .5) < .25 ? ~~(a) + .5 : Math.round(a);
        }
        var d = (t - f) / steps,
            r = ~~(d),
            R = r,
            i = 0;
        if (r) {
            while (R) {
                i--;
                R = ~~(d * Math.pow(10, i)) / Math.pow(10, i);
            }
            i ++;
        } else {
            while (!r) {
                i = i || 1;
                r = ~~(d * Math.pow(10, i)) / Math.pow(10, i);
                i++;
            }
            i && i--;
        }
        t = round(to * Math.pow(10, i)) / Math.pow(10, i);
        if (t < to) {
            t = round((to + .5) * Math.pow(10, i)) / Math.pow(10, i);
        }
        f = round((from - (i > 0 ? 0 : .5)) * Math.pow(10, i)) / Math.pow(10, i);
        return {from: f, to: t, power: i};
    };
    Raphael.fn.g.axis = function (x, y, length, from, to, steps, orientation, labels, type, dashsize) {
        dashsize = dashsize == null ? 2 : dashsize;
        type = type || "t";
        steps = steps || 10;
        var path = type == "|" || type == " " ? ["M", x + .5, y, "l", 0, .001] : orientation == 1 || orientation == 3 ? ["M", x + .5, y, "l", 0, -length] : ["M", x, y + .5, "l", length, 0],
            ends = this.g.snapEnds(from, to, steps),
            f = ends.from,
            t = ends.to,
            i = ends.power,
            j = 0,
            text = this.set();
        d = (t - f) / steps;
        var label = f,
            rnd = i > 0 ? i : 0;
            dx = length / steps;
        if (+orientation == 1 || +orientation == 3) {
            var Y = y,
                addon = (orientation - 1 ? 1 : -1) * (dashsize + 3 + !!(orientation - 1));
            while (Y >= y - length) {
                type != "-" && type != " " && (path = path.concat(["M", x - (type == "+" || type == "|" ? dashsize : !(orientation - 1) * dashsize * 2), Y + .5, "l", dashsize * 2 + 1, 0]));
                text.push(this.text(x + addon, Y, (labels && labels[j++]) || (Math.round(label) == label ? label : +label.toFixed(rnd))).attr(this.g.txtattr).attr({"text-anchor": orientation - 1 ? "start" : "end"}));
                label += d;
                Y -= dx;
            }
            if (Math.round(Y + dx - (y - length))) {
                type != "-" && type != " " && (path = path.concat(["M", x - (type == "+" || type == "|" ? dashsize : !(orientation - 1) * dashsize * 2), y - length + .5, "l", dashsize * 2 + 1, 0]));
                text.push(this.text(x + addon, y - length, (labels && labels[j]) || (Math.round(label) == label ? label : +label.toFixed(rnd))).attr(this.g.txtattr).attr({"text-anchor": orientation - 1 ? "start" : "end"}));
            }
        } else {
            label = f;
            rnd = (i > 0) * i;
            addon = (orientation ? -1 : 1) * (dashsize + 9 + !orientation);
            var X = x,
                dx = length / steps,
                txt = 0,
                prev = 0;
            while (X <= x + length) {
                type != "-" && type != " " && (path = path.concat(["M", X + .5, y - (type == "+" ? dashsize : !!orientation * dashsize * 2), "l", 0, dashsize * 2 + 1]));
                text.push(txt = this.text(X, y + addon, (labels && labels[j++]) || (Math.round(label) == label ? label : +label.toFixed(rnd))).attr(this.g.txtattr));
                var bb = txt.getBBox();
                if (prev >= bb.x - 5) {
                    text.pop(text.length - 1).remove();
                } else {
                    prev = bb.x + bb.width;
                }
                label += d;
                X += dx;
            }
            if (Math.round(X - dx - x - length)) {
                type != "-" && type != " " && (path = path.concat(["M", x + length + .5, y - (type == "+" ? dashsize : !!orientation * dashsize * 2), "l", 0, dashsize * 2 + 1]));
                text.push(this.text(x + length, y + addon, (labels && labels[j]) || (Math.round(label) == label ? label : +label.toFixed(rnd))).attr(this.g.txtattr));
            }
        }
        var res = this.path(path);
        res.text = text;
        res.all = this.set([res, text]);
        res.remove = function () {
            this.text.remove();
            this.constructor.prototype.remove.call(this);
        };
        return res;
    };

    Raphael.el.lighter = function (times) {
        times = times || 2;
        var fs = [this.attrs.fill, this.attrs.stroke];
        this.fs = this.fs || [fs[0], fs[1]];
        fs[0] = Raphael.rgb2hsb(Raphael.getRGB(fs[0]).hex);
        fs[1] = Raphael.rgb2hsb(Raphael.getRGB(fs[1]).hex);
        fs[0].b = mmin(fs[0].b * times, 1);
        fs[0].s = fs[0].s / times;
        fs[1].b = mmin(fs[1].b * times, 1);
        fs[1].s = fs[1].s / times;
        this.attr({fill: "hsb(" + [fs[0].h, fs[0].s, fs[0].b] + ")", stroke: "hsb(" + [fs[1].h, fs[1].s, fs[1].b] + ")"});
    };
    Raphael.el.darker = function (times) {
        times = times || 2;
        var fs = [this.attrs.fill, this.attrs.stroke];
        this.fs = this.fs || [fs[0], fs[1]];
        fs[0] = Raphael.rgb2hsb(Raphael.getRGB(fs[0]).hex);
        fs[1] = Raphael.rgb2hsb(Raphael.getRGB(fs[1]).hex);
        fs[0].s = mmin(fs[0].s * times, 1);
        fs[0].b = fs[0].b / times;
        fs[1].s = mmin(fs[1].s * times, 1);
        fs[1].b = fs[1].b / times;
        this.attr({fill: "hsb(" + [fs[0].h, fs[0].s, fs[0].b] + ")", stroke: "hsb(" + [fs[1].h, fs[1].s, fs[1].b] + ")"});
    };
    Raphael.el.original = function () {
        if (this.fs) {
            this.attr({fill: this.fs[0], stroke: this.fs[1]});
            delete this.fs;
        }
    };
})();