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raphael-charts-0.2.1.js
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raphael-charts-0.2.1.js
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/*
* Raphael Charts plugin - version 0.2.1
* Copyright (c) 2010 Boris Kuzmic (boris.kuzmic@gmail.com)
* Licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) license.
*
*/
(function() {
Raphael.fn.pie = function(canvasWidth, canvasHeight, R1, R2, values, options) {
var paper = this;
var rootElement = this.canvas.parentNode;
options = options || {};
var o = {
cx : canvasWidth / 2,
cy : canvasHeight / 2,
R1 : R1,
R2 : R2,
val : values,
numberOfValues : values.length,
total : 0,
colors : options.colors || [],
darkColors : [],
lightColors: [],
show3d : options.show3d || false,
size3d : options.size3d || 15,
animation : options.animation || false,
explode : options.explode || false,
tooltip : options.tooltip || false,
labels : options.labels || [],
backgroundFill : options.backgroundFill || [ "#fff", "#fff" ],
legend: options.legend || false,
legendLineColor: options.legendLineColor || "#000",
legendTextColor: options.legendTextColor || "#000",
legendFont: options.legendFont || "10px Arial",
legendContainerCssClass: options.legendContainerCssClass || "raphael-charts-legend-container",
legendLabelCssClass: options.legendLabelCssClass || "raphael-charts-legend-label",
legendShowValues: options.legendShowValues || "" // possible values are "normal" and "percentage"
};
var slices = [];
function slice() {
this.side1 = "";
this.side2 = "";
this.border = "";
this.top = "";
this.tx = 0;
this.ty = 0;
this.txm = 0;
this.tym = 0;
this.alphaM = 0;
};
function slicePart() {
this.paths = [];
this.params = [];
this.indexes = [];
};
calculateTotalAndUsedColors();
var explodeFactor = 4;
var aTotal = 360 / o.total; // total in scale of degrees
var rad = Math.PI / 180;
var valSum = 0; // will hold sum of all values
var draw3dBorder = true;
var bPart = new slicePart();
var sPart = new slicePart();
var topPart = new slicePart();
// first point in drawing slice
var x = o.cx + o.R1;
var y = o.cy;
if (!o.show3d) {
o.R2 = o.R1;
explodeFactor = 8;
}
if (o.numberOfValues == 1) {
s = new slice();
var e = paper.ellipse(o.cx, o.cy, o.R1, o.R2);
e.attr({stroke: "none", fill: o.colors[0]});
s.top = e;
if (o.show3d) {
p = createPathForBorderPart(o.cx - o.R1, o.cy, o.cx + o.R1, o.cy, 0);
borderParams = {stroke : "none", fill: "90-" + o.darkColors[0] + "-" + o.colors[0]};
s.border = createPart(p, borderParams);
}
slices[0] = s;
} else {
for ( var i = 0; i < o.numberOfValues; i++) {
s = new slice();
sideParams = {stroke: "none", fill: o.darkColors[i]};
borderParams = {stroke: "none", fill: "90-" + o.darkColors[i] + "-" + o.colors[i]};
topParams = {stroke: "#ccc", fill: "180-" + o.darkColors[i] + "-" + o.lightColors[i]};
var endX = x;
var endY = y;
valSum += o.val[i];
alpha = aTotal * valSum;
var largeAngleFlag = calculateLargeArcFlag(o.val[i], aTotal);
x = o.cx + o.R1 * Math.cos(alpha * rad);
y = o.cy + o.R2 * Math.sin(alpha * rad);
// calculate translation coordinates for explode effect
alphaM = aTotal * (valSum - (o.val[i] / 2));
x4 = o.cx + (o.R1 / explodeFactor) * Math.cos(alphaM * rad);
y4 = o.cy + (o.R2 / explodeFactor) * Math.sin(alphaM * rad);
xm = o.cx + o.R1 * Math.cos(alphaM * rad);
ym = o.cy + o.R2 * Math.sin(alphaM * rad);
s.tx = x4;
s.ty = y4;
s.txm = xm;
s.tym = ym;
s.alphaM = alphaM;
if (o.show3d) {
topParams.stroke = "none";
var side1Path = createPathFromPoint(endX,endY);
var side2Path = createPathFromPoint(x,y);
if (alpha >= 90 && alpha <= 270) {
s.side1 = createPartAndSendToBack(side1Path, sideParams);
} else {
if (alpha > 180 && alpha <= 360) {
if (aTotal * (valSum - o.val[i]) < 270) {
s.side2 = createPartAndSendToBack(side1Path, sideParams);
}
}
if (alpha < 90) {
s.side1 = createPart(side2Path, sideParams);
} else {
storePartForLater(sPart, side2Path, sideParams, i);
}
}
if (draw3dBorder) {
var borderPath = createPathForBorderPart(x, y, endX, endY, largeAngleFlag);
if (alpha <= 90) {
s.border = createPart(borderPath, borderParams);
} else {
if (alpha >= 180) {
borderPath = createPathForBorderPart(o.cx - o.R1, o.cy, endX, endY, 0);
s.border = createPart(borderPath, borderParams);
draw3dBorder = false;
} else {
storePartForLater(bPart, borderPath, borderParams, i);
}
}
}
}
// create and prepare top parts, but draw later
topPath = createPathForTopPart(x, y, endX, endY, largeAngleFlag);
storePartForLater(topPart, topPath, topParams, i);
slices[i] = s;
}
drawSlicePart(sPart, "side1");
drawSlicePart(bPart, "border");
drawSlicePart(topPart, "top");
}
function drawSlicePart(slicePart, side) {
for ( var i = slicePart.paths.length - 1; i >= 0; i--) {
s = slices[slicePart.indexes[i]];
if (side == "side1") {
s[side] = createPartAndSendToBack(slicePart.paths[i], slicePart.params[i]);
} else {
s[side] = createPart(slicePart.paths[i], slicePart.params[i]);
}
slices[slicePart.indexes[i]] = s;
}
}
function storePartForLater(slicePart, path, params, index) {
slicePart.paths.push(path);
slicePart.params.push(params);
slicePart.indexes.push(index);
}
function createPathFromPoint(startX, startY) {
return ["M", startX, startY,
"L", o.cx, o.cy,
"L", o.cx, o.cy + o.size3d,
"L", startX, startY + o.size3d, "z"].join(",");
}
function createPathForBorderPart(startX, startY, endX, endY, largeArcFlag) {
return ["M", startX, startY,
"A", o.R1, o.R2, "0", largeArcFlag, "0", endX, endY,
"L", endX, endY + o.size3d,
"A", o.R1, o.R2, "0", largeArcFlag, "1", startX, startY + o.size3d,
"L", startX, startY, "z" ].join(",");
}
function createPathForTopPart(startX, startY, endX, endY, largeArcFlag) {
return ["M", o.cx, o.cy,
"L", startX, startY,
"A", o.R1, o.R2, "0", largeArcFlag, "0", endX, endY,
"L", o.cx, o.cy, "z" ].join(",");
}
function createPartAndSendToBack(path, params) {
part = createPart(path, params);
part.toBack();
return part;
}
function createPart(path, params) {
part = paper.path(path);
part.attr(params);
return part;
}
// draw background
var background = paper.rect(0, 0, canvasWidth, canvasHeight);
var backgroundParams = (o.backgroundFill[0] == o.backgroundFill[1]) ?
{stroke : "none", fill : o.backgroundFill[0]} :
{stroke : "none", fill : "90-" + o.backgroundFill[0] + "-" + o.backgroundFill[1]};
background.attr(backgroundParams);
background.toBack();
if (o.animation && o.numberOfValues > 1) {
for ( var i = 0; i < o.numberOfValues; i++) {
slices[i].top.num = i;
slices[i].top.mouseover(function() {
if (o.tooltip)
showTooltip(this.num, true);
highlightOn(slices[this.num]);
animateSliceOut(slices[this.num], 1000);
}).mouseout(function() {
if (o.tooltip)
showTooltip(this.num, false);
highlightOff(slices[this.num]);
animateSliceIn(slices[this.num], 500);
});
}
}
if (o.explode && !o.animation) {
for ( var i = 0; i < o.numberOfValues; i++) {
explodeSlice(slices[i]);
}
}
if (o.legend) {
// create legend container elements
var legendContainerDiv = document.createElement("div");
var legendLabels = document.createElement("ul");
legendContainerDiv.className = o.legendContainerCssClass;
rootElement.parentNode.insertBefore(legendContainerDiv, rootElement.nextSibling);
legendContainerDiv.appendChild(legendLabels);
for (var i = 0; i < o.numberOfValues; i++) {
drawLegendLabels(slices[i], i, legendLabels, valSum);
}
}
function showTooltip(num, show) {
var tooltip = document.getElementById('tooltip');
if (show) {
var s = slices[num];
var v = Math.round((o.val[num] / o.total) * 100) + "%";
var lbl = o.labels[num] ? o.labels[num] + " - " : "";
lbl = lbl + v;
var cur = findPos(paper.canvas);
// adjust values for left and top position
cur.left = cur.left + o.cx - o.R1;
cur.top = cur.top + o.cy - o.R2;
var wh = findWH(tooltip);
var dirx = o.cx - s.txm;
var pw = (dirx < 0) ? 0 : wh.width + 5;
var xt = cur.left + Math.round(o.R1 - dirx) - pw;
var diry = o.cy - s.tym;
var ph = (diry < 0) ? 0 : wh.height + 5;
var yt = cur.top + Math.round(o.R2 - diry) - ph;
tooltip.style.borderColor = o.colors[num];
tooltip.innerHTML = lbl;
tooltip.style.left = xt + "px";
tooltip.style.top = yt + "px";
tooltip.style.display = 'block';
} else {
tooltip.style.display = 'none';
}
}
function highlightOn(s) {
//s.top.attr("fill", o.lightColors[s.top.num]);
s.top.attr("fill", "90-" + o.lightColors[s.top.num] + "-" + o.colors[s.top.num]);
}
function highlightOff(s) {
//s.top.attr("fill", o.colors[s.top.num]);
s.top.attr("fill", "180-" + o.darkColors[s.top.num] + "-" + o.lightColors[s.top.num]);
}
function animateSliceOut(s, speed) {
var translateX = s.tx - o.cx;
var translateY = s.ty - o.cy;
animateSlice(s, translateX, translateY, speed);
}
function animateSliceIn(s, speed) {
s.top.stop();
if (s.side1) s.side1.stop();
if (s.side2) s.side2.stop();
if (s.border) s.border.stop();
animateSlice(s, 0, 0, speed);
}
function animateSlice(s, xcord, ycord, speed) {
var sliceAnimation = Raphael.animation({transform : "T" + xcord + "," + ycord}, speed);
if (s.side1) {
s.top.animate(sliceAnimation);
s.side1.animateWith(s.top, sliceAnimation, sliceAnimation);
if (s.side2) s.side2.animateWith(s.top, sliceAnimation, sliceAnimation);
if (s.border) s.border.animateWith(s.top, sliceAnimation, sliceAnimation);
} else {
s.top.animate(sliceAnimation);
}
}
function explodeSlice(s) {
var translateX = s.tx - o.cx;
var translateY = s.ty - o.cy;
(s.s1) ? s.s1.transform("T" + translateX + "," +translateY) : false;
(s.s2) ? s.s2.transform("T" + translateX + "," +translateY) : false;
(s.s3) ? s.s3.transform("T" + translateX + "," +translateY) : false;
s.top.transform("T" + translateX + "," +translateY);
}
function drawLegendLabels(s, sliceIndex, legendLabels, valSum) {
var legendLabel = document.createElement("li");
legendLabel.className = o.legendLabelCssClass;
var legendLabelText = document.createElement("span");
var legendValue = "";
if (o.legendShowValues == "normal") {
legendValue = " (" + o.val[i] + ")";
} else if (o.legendShowValues == "percentage") {
legendValue = " (" + Math.round((o.val[i] / valSum)*100) + "%)";
}
legendLabelText.appendChild(document.createTextNode(" " + o.labels[sliceIndex] + legendValue));
legendLabel.appendChild(legendLabelText);
legendLabels.appendChild(legendLabel);
var lwh = findWH(legendLabel);
legendLabel.style.display = 'block';
lwh.height = lwh.height - 1;
var legendColor = Raphael(legendLabel, lwh.height, lwh.height);
legendColor.circle(lwh.height/2, lwh.height/2, lwh.height/2).attr(
{stroke: "none",
fill: "180-" + o.darkColors[sliceIndex] + "-" + o.lightColors[sliceIndex]});
legendColor.canvas.style.top = '1px';
legendColor.canvas.style.display = 'inline';
legendColor.canvas.style.zoom = '1';
legendColor.canvas.style.overflow = 'visible';
// only draw legend lines and text if pie is not exploded or animated
if (!o.explode && !o.animation) {
var xLineEnd = o.cx + (o.R1 + 20) * Math.cos(s.alphaM * Math.PI / 180);
var yLineEnd = o.cy + (o.R2 + 20) * Math.sin(s.alphaM * Math.PI / 180);
var legendLine = ["M", s.txm, s.tym, "L", xLineEnd, yLineEnd].join(",");
createPart(legendLine, {stroke : o.legendLineColor});
paper.circle(xLineEnd, yLineEnd, 3).attr({stroke: "none", fill: o.legendLineColor});
var legendText = paper.text(Math.round(xLineEnd), Math.round(yLineEnd), o.labels[sliceIndex]);
legendText.attr("fill", o.legendTextColor);
legendText.attr("font", o.legendFont);
// calculate offset of text based on pie center and line start
var legendTextBox = legendText.getBBox();
var dirx = o.cx - s.txm;
var pw = (dirx >= 0) ? 5 : - (legendTextBox.width + 5);
var diry = o.cy - s.tym;
var ph = (diry >= 0) ? 0 : -legendTextBox.height;
// move textbox to fit line position
legendText.attr("x", legendTextBox.x - pw);
legendText.attr("y", legendTextBox.y - ph);
}
}
function calculateLargeArcFlag(value, total) {
return (total * value) < 180 ? 0 : 1;
}
function calculateTotalAndUsedColors() {
Raphael.getColor.reset();
for ( var i = 0; i < o.numberOfValues; i++) {
o.total += o.val[i];
(o.colors[i] === undefined) ? o.colors[i] = Raphael.getColor() : false;
o.darkColors[i] = calculateDarkColor(o.colors[i]);
o.lightColors[i] = calculateLightColor(o.colors[i]);
}
}
};
Raphael.fn.bar = function(cx, cy, values, options) {
var paper = this;
options = options || {};
var o = {
val: values,
numberOfValues: values.length,
max: 0,
colors: options.colors || [],
darkColors: [],
lightColors: [],
show3d: options.show3d || false,
size3d: options.size3d || -1,
horizontal: options.horizontal || false,
tooltip: options.tooltip || false,
labels: options.labels || [],
backgroundFill: options.backgroundFill || ["#fff", "#fff"]
};
var bars = [];
calculateMaxValueAndUsedColors();
var padding = 5;
var np = 0;
var maxp = 0;
var x = y = w = h = 0;
var grad_angle = 180;
if (o.horizontal) {
grad_angle = 90;
np = (cy - padding * 2) / o.numberOfValues;
if (o.size3d == -1) o.size3d = np / 4;
maxp = cx - o.size3d - padding * 3;
y = padding + o.size3d;
x = padding;
h = np / 1.5;
} else {
np = (cx - padding * 2) / o.numberOfValues;
if (o.size3d == -1) o.size3d = np / 4;
maxp = cy - o.size3d - padding * 2;
x = padding;
w = np / 1.5;
}
for (var i = 0; i < o.numberOfValues; i++) {
topParams = {
stroke: "#000",
"stroke-width": 0.5,
fill: o.colors[i]
};
sideParams = {
stroke: "#000",
"stroke-width": 0.5,
fill: o.darkColors[i]
};
frontParams = {
stroke: "#000",
"stroke-width": 0.5,
fill: grad_angle + "-" + o.darkColors[i] + "-" + o.colors[i]
};
if (o.horizontal) {
w = (maxp / o.max) * o.val[i];
} else {
h = (maxp / o.max) * o.val[i];
y = padding + maxp - h + o.size3d;
}
frontPart = paper.rect(x, y, w, h);
frontPart.attr(frontParams);
bars[i] = frontPart;
bars[i].num = i;
if (o.tooltip) {
bars[i].mouseover(function () {
highlightOn(this);
showTooltip(this.num, true);
}).mouseout(function () {
highlightOff(this);
showTooltip(this.num, false);
});
}
if (o.show3d) {
topPath = createTopPath(x, y, w, h);
createPart(topPath, topParams);
sidePath = createSidePath(x, y, w, h);
createPart(sidePath, sideParams);
}
(o.horizontal) ? y += np : x += np;
}
function createTopPath(x, y, w, h) {
return ["M", x, y, "L", x + o.size3d, y - o.size3d, "L", x + w + o.size3d, y - o.size3d, "L", x + w, y, "z"].join(",");
}
function createSidePath(x, y, w, h) {
return ["M", x + w + o.size3d, y - o.size3d, "L", x + w + o.size3d, y + h - o.size3d, "L", x + w, y + h, "L", x + w, y, "z"].join(",");
}
function createPart(path, params) {
var part = paper.path(path);
part.attr(params);
}
function highlightOn(b) {
b.attr("fill", grad_angle + "-" + o.darkColors[b.num] + "-" + o.lightColors[b.num]);
}
function highlightOff(b) {
b.attr("fill", grad_angle + "-" + o.darkColors[b.num] + "-" + o.colors[b.num]);
}
function showTooltip(num, show) {
var tooltip = document.getElementById('tooltip');
if (show) {
b = bars[num];
lbl = o.labels[num] ? o.labels[num] + " - " : "";
lbl = lbl + o.val[num];
tooltip.style.borderColor = o.colors[num];
tooltip.innerHTML = lbl;
cur = findPos(paper.canvas);
wh = findWH(tooltip);
var xt = yt = 0;
if (o.horizontal) {
xt = cur.left + b.attr('x') + o.size3d / 2 + b.attr('width');
yt = cur.top + b.attr('y') + b.attr('height') / 2 - wh.height / 2;
} else {
xt = cur.left + b.attr('x') + o.size3d / 2 + b.attr('width') / 2 - (wh.width / 2);
yt = cur.top + b.attr('y') - o.size3d / 2 - wh.height;
}
tooltip.style.left = xt + "px";
tooltip.style.top = yt + "px";
tooltip.style.display = 'block';
} else {
tooltip.style.display = 'none';
}
}
if (o.backgroundFill[0] != o.backgroundFill[1]) {
attrGrid = {
stroke: "none",
fill: "45-" + o.backgroundFill[0] + "-" + o.backgroundFill[1]
};
p3 = ["M", 0, padding + o.size3d, "L", padding + o.size3d, 0, "L", padding + o.size3d, cy - o.size3d - padding, "L", 0, cy, "z"].join(",");
var grid1 = paper.path(p3);
grid1.attr(attrGrid);
grid1.toBack();
p3 = ["M", padding + o.size3d, 0, "L", cx, 0, "L", cx, cy - o.size3d - padding, "L", padding + o.size3d, cy - o.size3d - padding, "z"].join(",");
var grid2 = paper.path(p3);
grid2.attr(attrGrid);
grid2.toBack();
p3 = ["M", padding + o.size3d, cy - o.size3d - padding, "L", cx, cy - o.size3d - padding, "L", cx - padding - o.size3d - 1, cy, "L", 0, cy, "z"].join(",");
var grid3 = paper.path(p3);
grid3.attr(attrGrid);
grid3.toBack();
} else {
var background = paper.rect(0, 0, cx, cy);
background.attr({
stroke: "none",
fill: o.backgroundFill[0]
});
background.toBack();
}
function calculateMaxValueAndUsedColors() {
Raphael.getColor.reset();
for (var i = 0; i < o.numberOfValues; i++) {
if (o.val[i] > o.max) {
o.max = o.val[i];
}
(o.colors[i] === undefined) ? o.colors[i] = Raphael.getColor() : false;
o.darkColors[i] = calculateDarkColor(o.colors[i]);
o.lightColors[i] = calculateLightColor(o.colors[i]);
}
}
};
// ---- helper functions ----
function findPos(obj) {
var curleft = curtop = 0;
if ("getBoundingClientRect" in document.documentElement && !window.opera) {
var box = obj.getBoundingClientRect();
var doc = obj.ownerDocument;
var body = doc.body;
var docElem = doc.documentElement;
var clientTop = docElem.clientTop || body.clientTop || 0;
var clientLeft = docElem.clientLeft || body.clientLeft || 0;
curtop = box.top + (window.pageYOffset || docElem.scrollTop || body.scrollTop) - clientTop;
curleft = box.left + (window.pageXOffset || docElem.scrollLeft || body.scrollLeft) - clientLeft;
} else {
if (obj.offsetParent) {
do {
curleft += obj.offsetLeft;
curtop += obj.offsetTop;
} while (obj = obj.offsetParent);
}
}
return {left : curleft, top : curtop};
}
function findWH(obj) {
var curw = curh = 0;
// reset css
obj.style.display = 'block';
obj.style.visibility = 'hidden';
// find width and height
curw = parseInt(obj.offsetWidth);
curh = parseInt(obj.offsetHeight);
// restore css
obj.style.display = 'none';
obj.style.visibility = '';
return {width : curw, height : curh};
}
function calculateDarkColor(color) {
var c = Raphael.getRGB(color);
var r = parseInt(c.r) - 36;
var g = parseInt(c.g) - 30;
var b = parseInt(c.b) - 24;
return "#" + toHex(r) + toHex(g) + toHex(b);
}
function calculateLightColor(color) {
var c = Raphael.getRGB(color);
var r = parseInt(c.r) + 36;
var g = parseInt(c.g) + 30;
var b = parseInt(c.b) + 24;
return "#" + toHex(r) + toHex(g) + toHex(b);
}
function toHex(N) {
if (N == null)
return "00";
N = parseInt(N);
if (N == 0 || isNaN(N))
return "00";
N = Math.max(0, N);
N = Math.min(N, 255);
N = Math.round(N);
return "0123456789ABCDEF".charAt((N - N % 16) / 16)
+ "0123456789ABCDEF".charAt(N % 16);
}
})();