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harry.js
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harry.js
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// harry plotter 1.0
// ~L~ nikomomo@gmail.com 2009-2017
// https://github.com/nikopol/Harry-Plotter
/*
//everything in the constructor is optional
//if data are provided, the graph is directly drawn
var h=harry({
//datas can be provided in these formats :
datas: [v1,v2,v3,...], //simple dataset values
datas: {l1:v1,l2:v2,l3:v3,..},//simple dataset labels/values
datas: [[v1,v2],[w1,w2],...], //multiple dataset values
datas: { //simple dataset with optionaly labels, color and title
values: [v1,v2,...], // excepting values, all keys are
labels: [l1,l2,...], // optionals in this format
title: "my dataset #1", // values can also be an hash {label:value,...}
color: "#fc0"
},
datas: [ //multiple dataset with label,color and title
{ values:[...],labels:[...],title:"...",color:"..." },
{ values:[...],labels:[...],title:"...",color:"..." }
],
//context
id: "str", //canvas's id, by default "harry"+count++
container: "str/elem", //container where create canvas, default=body
canvas: "str/elem", //canvas element, default=create it into container
width: int, //canvas's width, default=canvas or container width
height: int, //canvas's height, default=canvas or container height
//rendering
background: "rgba(0,0,0,0.5)",//background color, default=transparent
color: "#rgb", //allow to specify a color for a simple dataset
mode: "curve:stack", //draw mode, can be:
// pie cheesecake
// pie:donut donut
// chart histogram, side by side
// chart:stack stacked histograms
// chart:vertical vert. histograms
// chart:stack:vertical vert. stacked histograms
// line lines (default)
// line:stack stacked lines
// curve curved lines
// curve:stack stacked curved lines
mirror: {x:false,y:false}, //vertical/horizontal mirror rendering
barspace: int, //space between bars for mode chart only, default=auto
linewidth: int, //line width, default=1
linejoin: "round", //line join, can be round|bevel|miter default=miter
fill: "vertical", //fill style (only first letter matter), can be:
// none without fills
// solid uniform fill (default)
// light lighten color
// dark darken color
// vertical vertical gradient fill
// horizontal horizontal gradient fill
// radial radial gradient fill
opacity: 0.8, //fill opacity, between 0 and 1
margins:[top,right,bot,left], //margin size (for labels), default=auto
pointradius: int, //radius point size in mode line/curve only, default=none
anim: int, //initial animation duration in seconds, default=disabled
scale: { //setup bottom and top of y scale
top: int/'auto'/null, // int value or "auto" to round scale, default=max data value
bottom: int/'auto'/null, // int value or "auto" to round scale, default=0
},
title: { //title options
text: "title", // clear enough
font:'9px "Trebuchet MS"', // font size & family, default=bold 12px "Sans Serif"
color: "rgba(4,4,4,0.3)", // font color, default=rgba(4,4,4,0.3)
shadow: "x,y,blur,#col", // text shadow, default=none
x: 5, // title position left position
y: 10, // title position top position
z: "background" // behind or on top of the graph, default=top
},
labels: { //axis labels options
font: "9px Trebuchet MS", // font size & family, important:use px size,
// default=normal 9px "Sans Serif"
color: "#a0a0a0", // font color, default=a0a0a0
shadow: "x,y,blur,#col", // label text shadow, default=none
y: [0,50,100], // y axis, numbers are %, default=none
ypos: "left+right", // y labels position, default=right
yabr: false, // y labels abbreviated (eg. 1200 becomes 1.2K)
x: int, // x axis, display 1/int labels, 1=all..., default=none
marks: int // graduation's marks size, default=0
},
legends: { //set to false to disable legends box, default=auto
x: int, // left corner position, default=5
y: int, // top corner position, default=5
background: "rgba(180,180,180,0.5)",//background color, default=rgba(255,255,255,0.5)
border: "#fff", // legends border color, default=none
shadowbox: "x,y,b,#col", // legends box shadow, default=none
border2: "#fff", // color box border color, default=none
color: "#000", // text color, default, #666
shadow: "x,y,blur,#col", // legends text shadow, default=none
font:'9px "Trebuchet MS"' // font size & family, default=normal 10px "Sans Serif"
layout: 'h' // legends layout h(orizontal) or v(ertical) default=v
},
grid: { //grid options
color:"#a0a0a0", // grid color, default=#a0a0a0
linewidth: int // grid linewidth default=1
y: [0,50,100], // y axis, numbers are %, default=[0,25,50,75,100]
x: "left|right|all|int" // x axis, int=display 1/n, default="left+right"
},
//interaction
mouseover: {, //set to false to disable mouseover, default=enabled
sort: true, // sort values, default=false
bullet: "rgba(0,0,0,0.5)", // bullet background color, default=rgba(99,99,99,0.8)
border: "#fc0", // bullet border color, default=none,
shadowbox: "x,y,b,#col", // bullet box shadow, default=none
font: "9px Trebuchet MS", // bullet text font, default=normal 9px "Sans Serif"
color: "#666", // bullet text color, default=#fff
shadow: "x,y,blur,#col", // bullet text shadow, default=none
radius: int, // spot radius, default=5
linewidth: int, // spot linewidth, default=linewidth below,0=fill
circle: "#888888", // spot color, default=#888
border2: "#fff", // spot color, default=none
axis: "xy|x|y", // draw spot axis, default=none
text: "%v", // text in the bullet
// %v=value %l=label %n=index %t=title %s=sum
// %V=abbreviated value %S=abbreviated sum
text: callback(params) // or text can trigger a callback called with an object
// {v:..., l:..., n:.. ,...} as defined before
// if it returns a string, it'll be displayed
header: { // header in the bullet
text: "%l: %s", // text in the bullet (same var than mouseover.text)
font: "9px Trebuchet MS", // bullet header font, default=mouveover.font
color: "#666", // bullet text color, default=mouseover.color
shadow: "x,y,blur,#col", // bullet text shadow, default=none
}
}
});
//or (same effect)
var h=plotter({...});
h.clear() //delete all datasets & remove events handler
.load(data) //add a dataset (see contructor)
.draw(); //draw all datasets
h.draw(mode); //draw all datasets in a given mode (see constructor)
*/
var
harry=(function(o){
"use strict";
var
//CONSTS ======================================================================
COLORS=["#88a4d7","#d685c9","#86d685","#ffc34f","#93c2ea","#f28989","#f9eb8a"],
DFTFONT="Helvetica, Arial, Sans-Serif",
//TOOLS LIB ===================================================================
getRGB=function(color) {
var r;
if(color && color.constructor==Array && color.length==3) return color;
if(r=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(color)) return [parseInt(r[1],10), parseInt(r[2],10), parseInt(r[3],10)];
if(r=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(color)) return [parseFloat(r[1])*2.55, parseFloat(r[2])*2.55, parseFloat(r[3])*2.55];
if(r=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(color)) return [parseInt(r[1],16), parseInt(r[2],16), parseInt(r[3],16)];
if(r=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(color)) return [parseInt(r[1]+r[1],16), parseInt(r[2]+r[2],16), parseInt(r[3]+r[3],16)];
return [0,0,0];
},
calcColor=function(color,delta,alpha) {
var rgb=getRGB(color),i;
if(typeof delta!="array") delta=[delta,delta,delta];
for(i=0;i<3;++i) rgb[i]=Math.max(Math.min(rgb[i]+delta[i],255),0);
return (alpha!=undefined)?
"rgba("+rgb.join(',')+","+alpha+")":
"rgb("+rgb.join(',')+")";
},
fontPixSize=function(f) {
var p=f.match(/\d+px/i);
if(p) return parseInt(p,10);
p=f.match(/[0-9\.]+em/i);
if(p) return Math.floor(16.0*parseFloat(p));
p=f.match(/\d+pt/i);
if(p) return Math.floor(1.3333*parseInt(p,10));
return 10;
},
smallNum=function(n){
return n>1000000 ? (Math.floor(n/100000)/10)+"M" : ( n>1000 ? (Math.floor(n/100)/10)+"K" : n );
},
scaleUp=function(n) {
var s=Math.floor(n).toString(),
d=parseInt(s.substr(0,1),10),
m=d*parseFloat("1E"+(s.length-1));
return m==n ? n : (d+1)*parseFloat("1E"+(s.length-1));
},
merge=function(a,b) {
if(typeof(b)=='object')
for(var k in b)
a[k]=b[k];
return a;
},
mouseXY=function(e) {
e=e||window.event;
if('offsetX' in e) return {x:e.offsetX,y:e.offsetY};
var o=e.target,p={x:e.pageX,y:e.pageY};
while(o.offsetParent){
p.x-=o.offsetLeft;
p.y-=o.offsetTop;
o=o.offsetParent;
}
return p;
},
buildCanvas=function(o,w,h) {
var c=document.createElement('canvas'),
p=o?(typeof(o)=='string'?document.getElementById(o):o):document.body;
if(!p) return;
c.setAttribute('width',(w||p.clientWidth)+'px');
c.setAttribute('height',(h||p.clientHeight)+'px');
p.appendChild(c);
return c;
},
calcMargins=function(flag,l,mo) {
var m=fontPixSize(l.font);
if(flag.pie) {
m=l.x ? m*2 : (mo===false ? 0 : 15);
return [m,m,m,m];
}
var
ll=/l/i.test(l.ypos),
lr=/r/i.test(l.ypos),
f=Math.floor(m/2),
k=l.marks;
return flag.vertical ? [
/*top*/ l.y && ll ? m+4 : (l.x?m:0),
/*right*/ l.y ? m : 1,
/*bottom*/ l.y && lr ? m+4 : (l.x?m:1),
/*left*/ l.x ? 4+l.xwidth : (l.y?m:0)
] : [
/*top*/ l.y ? f : 0,
/*right*/ l.y && lr ? 4+l.ywidth : (l.x?m:1),
/*bottom*/ l.x ? 3+m+k : (l.y?m:1),
/*left*/ l.y && ll ? 4+l.ywidth : (l.x?f:0)
];
},
getMode=function(m) {
return (m||'line').split(':')[0];
},
getFlag=function(m) {
var o={},l=(m||'line').split(':');
while(l.length) o[l.pop()]=true;
return o;
},
percent=function(v,m) {
return m ? (Math.round(1000*v/m)/10)+'%' : '0%';
},
strf=function(t,v) {
var k,s="";
if(t){
s = typeof(t)=="function" ? t(v) : t;
if(v) for(k in v) s=s.replace('%'+k,v[k]);
}
return s;
},
textBox=function(gc,t,v,m,b) {
var n,w;
if(!b) b={};
if(!m) m=0;
b.lines=strf(t,v).split(/\n|\\n/);
b.lh=fontPixSize(gc.font)+m,
b.h=b.lines.length*b.lh,
b.w=0;
for(n in b.lines) if((w=gc.measureText(b.lines[n]).width+m*2)>b.w) b.w=w;
return b;
},
//PRIVATE VARS ================================================================
canvas=o.canvas
? (o.canvas.constructor == HTMLCanvasElement ? o.canvas : document.getElementById(o.canvas))
: buildCanvas(o.container,o.width,o.height),
w=canvas.width,
h=canvas.height,
gc=canvas.getContext("2d"),
imgdata,
bg=o.background,
flag=getFlag(o.mode),
mode=getMode(o.mode),
fill=(o.fill||"s")[0].toLowerCase().replace(/[^nsvhrdl]/g,"s"),
opacity=parseFloat(o.opacity)||1,
linewidth=o.linewidth==undefined?1:parseInt(o.linewidth,10),
linejoin=o.linejoin||"miter",
barspace=o.barspace==undefined?'a':parseInt(o.barspace,10),
radiuspoint=parseInt(o.radiuspoint,10)||0,
scale=o.scale||{},
mirror=o.mirror||{},
labels=merge({
color: "#a0a0a0",
font: 'normal 9px '+DFTFONT,
marks: 0,
xwidth: 0,
ywidth: 0,
ypos: 'right'
},o.labels),
mo=o.mouseover===false
? false
: merge({
radius: 5,
linewidth: linewidth*2,
circle: "#888",
font: 'normal 10px '+DFTFONT,
color: "#fff",
bullet: "rgba(99,99,99,0.8)",
axis: false,
text: "%t: %v"
},o.mouseover),
mousepos,
overpts=[],
overpie={n:false},
automargins=o.margins ? false : true,
margins=o.margins||[0,0,0,0],
grid=merge({
color: "#a0a0a0",
linewidth: 1,
x: 'lr',
y: [0,25,50,75,100]
},o.grid),
title=o.title
? merge({
font: 'bold 12px '+DFTFONT,
color: 'rgba(4,4,4,0.5)',
z: 'top'
}, o.title)
: false,
leg=o.legends===false
? false
: merge({
color: "#666",
font: 'normal 10px '+DFTFONT,
layout: 'v'
},o.legends),
data=[], dmin, dmax, dlen=0, dsum, drng, dinc,
rx, ry, rw, rh, rx2, ry2, lxl, acf=1,
//PRIVATE METHODS =============================================================
draw,
_x=mirror.x ? function(x){ return w-x; } : function(x){ return x; },
_y=mirror.y ? function(y){ return h-y; } : function(y){ return y; },
_w=mirror.x ? function(w){ return -w; } : function(w){ return w; },
_h=mirror.y ? function(h){ return -h; } : function(h){ return h; },
//setup precalc vars
setup=function() {
var i,j,l,d,s,
autotop = /auto/i.test(scale.top),
autobot = /auto/i.test(scale.bottom);
//datasets vars
dlen=data.length;
dmin=dmax=false;
drng=dsum=dinc=0;
labels.xwidth=0;
gc.font=labels.font;
if(dlen) {
for(i=0;i<dlen;i++) {
d=data[i];
dmin=dmin===false?d.min:Math.min(d.min,dmin);
dmax=dmax===false?d.max:Math.max(d.max,dmax);
if(d.maxlab) labels.xwidth=Math.max(labels.xwidth,gc.measureText(d.maxlab).width);
}
if(autotop) dmax=scaleUp(dmax);
else if (scale.top) dmax=scale.top;
if (!autobot && scale.bottom) dmin=scale.bottom;
if(flag.stack) {
for(i=0,l=data[0].len;i<l;++i) {
s=0;
for(j=0;j<dlen;++j) s+=(data[j].val[i]||0);
if(s>dsum) dsum=scaletop ? scaleUp(s) : scale.top ? scale.top : s;
}
drng=scale.bottom ? dsum-dmin : dsum;
} else {
dsum=dmax;
drng=autobot ? dmax-dmin : dmax;
}
dinc=autobot ? dmin : scale.bottom || 0;
labels.ywidth=gc.measureText(dsum||'0').width;
}
//misc
labels.fontpx=fontPixSize(labels.font);
if(labels.x=='auto'){
labels.x=1;
labels.xauto=true;
}
if(/none|false/.test(grid.y)) grid.y=[];
//plot zone
if(automargins) margins=calcMargins(flag,labels,mo);
rx=margins[3];
ry=margins[0];
rw=Math.max(w-margins[1]-margins[3],0);
rh=Math.max(h-margins[0]-margins[2],0);
rx2=rx+rw;
ry2=ry+rh;
if(mirror.x || mirror.y){
var _=CanvasRenderingContext2D.prototype;
gc.createLinearGradient=function(x1,y1,x2,y2){ return _.createLinearGradient.call(gc,_x(x1),_y(y1),_x(x2),_y(y2)) };
gc.clearRect=function(x,y,w,h){ return _.clearRect.call(gc,_x(x),_y(y),_w(w),_h(h)) };
gc.fillRect=function(x,y,w,h){ return _.fillRect.call(gc,_x(x),_y(y),_w(w),_h(h)) };
gc.fillText=function(t,x,y){ return _.fillText.call(gc,t,_x(x),_y(y)) };
gc.moveTo=function(x,y){ return _.moveTo.call(gc,_x(x),_y(y)) };
gc.lineTo=function(x,y){ return _.lineTo.call(gc,_x(x),_y(y)) };
gc.arc=function(x,y,r,a1,a2){ return _.arc.call(gc,_x(x),_y(y),r,a1,a2) };
}
},
//load a dataset
load=function(d) {
var t,v,k,labs=d.labels||[],l,
vals=d.values && typeof(d.values)!="function" ? d.values : d,
ds={
val:[], lab:[], len:0, sum:0, avg:0, max:0, min:0xffffffffffff,
tit:d.title || "dataset#"+(data.length+1), maxlab: '',
col:d.color || o.color || COLORS[data.length%COLORS.length]
};
for(k in vals) {
v=parseFloat(vals[k]);
if(isNaN(v)) v=null;
ds.val.push(v);
l=labs[k]||k;
if(l.length>ds.maxlab.length) ds.maxlab=l;
ds.lab.push(l);
ds.sum+=v;
if(v>ds.max) ds.max=v;
if(v && v<ds.min) ds.min=v;
}
ds.len=ds.val.length;
ds.avg=ds.len ? ds.sum/ds.len : 0;
data.push(ds);
},
//load datasets
loads=function(datas) {
if(datas instanceof Array && typeof(datas[0])=='object' && datas[0]!=null)
for(var i=0,l=datas.length;i<l;++i)
load(datas[i]);
else
load(datas);
setup();
},
//set and return a fillstyle
setGradient=function(c) {
var g;
switch(fill) {
case "s": //solid
g=calcColor(c,0,opacity);
break;
case "l": //light
g=calcColor(c,0x15,opacity);
break;
case "d": //dark
g=calcColor(c,-0x15,opacity);
break;
case "v": //vertical
g=gc.createLinearGradient(0,ry2,0,ry);
g.addColorStop(0,calcColor(c,-0x30,opacity));
g.addColorStop(1,calcColor(c,0x30,opacity));
break;
case "h": //horizontal
g=gc.createLinearGradient(rx,0,rx2,0);
g.addColorStop(0,calcColor(c,-0x30,opacity));
g.addColorStop(1,calcColor(c,0x30,opacity));
break;
case "r": //radial
var cx=rx+rw/2,cy=ry+rh/2;
g=gc.createRadialGradient(cx,cy,0,cx,cy,rh/2);
g.addColorStop(0,calcColor(c,-0x30,opacity));
g.addColorStop(1,calcColor(c,0x30,opacity));
break;
}
return g ? gc.fillStyle=g : false;
},
stroke=function(s){
if(linewidth) {
gc.lineWidth=linewidth;
gc.lineJoin=linejoin;
gc.strokeStyle=s;
gc.stroke();
}
},
fillstroke=function(s){
gc.closePath();
setGradient(s) && gc.fill();
stroke(s);
},
//set shadow
setShadow=function(s) {
if(s && gc.hasOwnProperty('shadowBlur')) {
var p=s.split(/[ ,;:-]/);
gc.shadowOffsetX=parseInt(p[0]||1,10);
gc.shadowOffsetY=parseInt(p[1]||1,10);
gc.shadowBlur =parseInt(p[2]||1,10);
gc.shadowColor =p[3]||'#000';
}
},
//unset shadow
unsetShadow=function() {
if(gc.hasOwnProperty('clearShadow'))
gc.clearShadow();
else if(gc.hasOwnProperty('shadowBlur'))
gc.shadowOffsetX=
gc.shadowOffsetY=
gc.shadowBlur =0;
},
//erase canvas
cls=function() {
gc.clearRect(-1,-1,w+1,h+1);
if(bg) {
gc.fillStyle=bg;
gc.fillRect(-1,-1,w+1,h+1);
}
},
drawTitle=function() {
if(title) {
setShadow(title.shadow);
gc.font=title.font;
gc.textAlign=mirror.x?'right':'left';
gc.textBaseline=mirror.y?'bottom':'top';
gc.fillStyle=title.color;
gc.fillText(
title.text,
title.x==undefined?margins[3]+2:title.x,
title.y==undefined?margins[0]+2:title.y
);
unsetShadow();
}
},
//draw the background grid Y axis
drawYGrid=function() {
if(!flag.pie && grid.y) {
var i,l,x,y;
gc.lineWidth=grid.linewidth;
gc.strokeStyle=grid.color;
for(i=0,l=grid.y.length;i<l;++i) {
gc.beginPath();
if(flag.vertical) {
x=rx+Math.round(rw*grid.y[i]/100);
gc.moveTo(x,ry);
gc.lineTo(x,ry2);
} else {
y=ry2-Math.round(rh*grid.y[i]/100);
gc.moveTo(rx,y);
gc.lineTo(rx2,y);
}
gc.stroke();
}
}
},
//draw the background grid on X axis
drawXGrid=function(x) {
var i,y,
l=x.length,
gx=grid.x,
ga=/a/i.test(gx),
gl=/l/i.test(gx),
gr=/r/i.test(gx),
n=parseInt(gx,10);
if(gx) {
gc.lineWidth=grid.linewidth;
gc.strokeStyle=grid.color;
for(i=0;gx && i<l;++i)
if(ga || (n && i%n==0) || (i==0 && gl) || (i==l-1 && gr)) {
gc.beginPath();
if(flag.vertical) {
gc.moveTo(rx,x[i]);
gc.lineTo(rx2,x[i]);
} else {
gc.moveTo(x[i],ry);
gc.lineTo(x[i],ry2);
}
gc.stroke();
}
}
},
//draw labels on Y axis
drawYLabels=function() {
if(dlen && labels.y) {
if(!flag.pie) {
var i,l,x,y,w,v,dec=drng<10?100:(drng<100?10:1);
setShadow(labels.shadow);
gc.font=labels.font;
gc.fillStyle=labels.color;
if(flag.vertical) {
gc.textAlign='center';
for(i=0,l=labels.y.length;i<l;++i) {
x=rx+Math.round(rw*labels.y[i]/100);
v=dinc+drng*labels.y[i]/100;
v=Math.round(dec*v)/dec;
if(labels.yabr) v=smallNum(v);
if(/r/i.test(labels.ypos)) {
y=ry2+1;
gc.textBaseline=mirror.y?'bottom':'top';
gc.fillText(v,x,y);
}
if(/l/i.test(labels.ypos)) {
y=ry-2;
gc.textBaseline=mirror.y?'top':'bottom';
gc.fillText(v,x,y);
}
}
} else {
gc.textBaseline='middle';
for(i=0,l=labels.y.length;i<l;++i) {
y=ry2-Math.round(rh*labels.y[i]/100);
v=dinc+drng*labels.y[i]/100;
v=Math.round(dec*v)/dec;
if(labels.yabr) v=smallNum(v);
if(/r/i.test(labels.ypos)){
x=rx2+1;
gc.textAlign=mirror.x?'right':'left';
gc.fillText(v,x,y);
}
if(/l/i.test(labels.ypos)) {
x=rx-2;
gc.textAlign=mirror.x?'left':'right';
gc.fillText(v,x,y);
}
}
}
unsetShadow();
}
}
},
//draw labels on X axis
drawXLabel=function(n,x,y,ta,tb,chk) {
gc.save();
x=Math.round(x);
y=Math.round(y);
if(labels.x && (n%labels.x)==0) {
var
ok=true,
l=data[0].lab[n]||n,
w=0;
gc.font=labels.font;
if(labels.xauto && chk) {
w=gc.measureText(l).width;
ok=!((chk=='h' && ta=='center' && x-w/2<lxl) || (chk=='v' && y<lxl));
}
if(ok) {
setShadow(labels.shadow);
gc.fillStyle=labels.color;
gc.textAlign=ta;
gc.textBaseline=tb;
gc.fillText(l,x,y);
unsetShadow();
lxl=ta=='center'?x+w/2:y+labels.fontpx;
}
}
if(labels.marks) {
gc.lineWidth=1;
gc.beginPath();
gc.moveTo(x,ry2);
gc.lineTo(x,ry2+labels.marks);
gc.strokeStyle=labels.color;
gc.stroke();
}
gc.restore();
},
drawLegends=function() {
if(leg!==false && dlen>1) {
gc.save();
gc.font=leg.font;
var i,w,g,px,py,d,lw=[],
hor=leg.layout=='h',
mw=0,
tw=0,
s=3,
lh=fontPixSize(leg.font)+s,
nl=dlen,
bs=lh-s,
tx=s*2+bs,
h=hor?s+lh:s+lh*nl,
x=leg.x!=undefined?leg.x:margins[3]+2,
y=leg.y!=undefined?leg.y:margins[0]+2+(title && !title.x?2+fontPixSize(title.font):0);
for(i=0;i<nl;++i) {
w=gc.measureText(data[i].tit).width;
if(w>mw) mw=w;
lw.push(w);
tw+=w;
}
w=hor?(tx+s*2)*nl+tw:s*3+bs+mw;
//draw background
gc.lineWidth=1;
if((g=leg.background)) {
setShadow(leg.shadowbox);
gc.fillStyle=g;
gc.fillRect(x,y,w,h);
unsetShadow();
}
if((g=leg.border)) {
gc.strokeStyle=g;
gc.strokeRect(x,y,w,h);
}
for(i=0,py=y+s,px=x+s;i<nl;++i) {
d=data[i];
//draw color box
setShadow(leg.shadow);
gc.fillStyle=d.col;
gc.fillRect(px,py,bs,bs);
unsetShadow();
if((g=leg.border2)) {
gc.strokeStyle=g;
gc.strokeRect(px,py,bs,bs);
}
//draw textgc
setShadow(leg.shadow);
gc.textAlign=mirror.x?'right':'left';
gc.textBaseline=mirror.y?'bottom':'top';
gc.fillStyle=leg.color;
gc.fillText(d.tit,px+s+bs,py);
unsetShadow();
if(hor) px+=s*4+bs+lw[i]; else py+=lh;
}
gc.restore();
}
},
drawBullets=function(bs,center) { //[{x,y,r,v,n,nds}]
gc.save();
gc.font=mo.font;
var i,n,m,l=bs.length,b,txt,bh=0,bw=0,s=3,
pt=fontPixSize(mo.font),
pr=Math.floor(pt/2),lh=pt+s,x,y,x1,y1,x2,y2,
xl=w,xr=0,yt=h,yb=0,mx=0,v,head;
if(mo.sort) bs.sort(function(a,b){return parseFloat(b.v)-parseFloat(a.v)});
for(n=0;n<l;n++) mx+=bs[n].v;
//calc texts sizes
for(n=0;n<l;n++){
b=bs[n];
v={
v: b.v,
V: smallNum(b.v),
l: data[b.nds].lab[b.n],
n: b.n,
t: data[b.nds].tit,
p: b.pct||percent(b.v,mx),
s: mx,
S: smallNum(mx)
};
b=textBox(gc,mo.text,v,s,b);
if(b.w) {
b.h2=Math.floor(b.h/2);
if(b.w>bw) bw=b.w;
bh+=b.h;
b.r++;
if(xl>b.x-b.r) xl=b.x-b.r;
if(xr<b.x+b.r) xr=b.x+b.r;
if(yt>b.y) yt=b.y;
if(yb<b.y) yb=b.y;
}
}
if(l>1) bw+=s*2+pt;
if(bh) {
if(mo.header) {
if(mo.header.font) gc.font=mo.header.font;
head=textBox(gc,mo.header.text,v,s);
if(head.w>bw) bw=head.w;
bh+=head.h;
}
bh+=s;
//calc position
if(center) {
x=xl+(xr-xl)/2;
x1=x-(bw/2);
if(x1+bw>w) x1=w-1-bw;
if(x1<1) x1=1;
} else {
x1=xr;
if(x1+bw>=w) x1=xl-bw;
if(x1<1) x1=1;
}
x1=Math.floor(x1);
x2=x1+bw;
y=yt+bh/2;
y1=y+(bh/2);
if(y1>ry2) y1=ry2-1;
y1=Math.floor(y1);
y2=y1-bh;
//draw bullet
gc.beginPath();
gc.moveTo(x1,y1);
gc.lineTo(x2,y1);
gc.lineTo(x2,y2);
gc.lineTo(x1,y2);
gc.closePath();
if(mo.bullet) {
setShadow(mo.shadowbox);
gc.strokStyle='';
gc.fillStyle=mo.bullet;
gc.fill();
unsetShadow();
}
if(mo.border) {
gc.lineWidth=1;
gc.lineJoin='round';
gc.strokeStyle=mo.border;
gc.stroke();
}
//draw texts
gc.textAlign=mirror.x?'right':'left';
gc.textBaseline=mirror.y?'bottom':'top';
y=y2+s;
if(head) {
x=x1+s;
setShadow(mo.header.shadow);
gc.fillStyle=mo.header.color||mo.color;
for(i=0;i<head.lines.length;++i,y+=head.lh)
gc.fillText(head.lines[i],x,y);
unsetShadow();
gc.font=mo.font;
}
for(n=0;n<l;n++) {
b=bs[n];
x=x1+s;
if(l>1) {
gc.beginPath();
gc.arc(x+pr,y+pr,pr,0,2*Math.PI);
gc.fillStyle=data[b.nds].col;
gc.fill();
x+=pt+s;
}
setShadow(mo.shadow);
gc.fillStyle=mo.color;
for(i=0;i<b.lines.length;++i,y+=lh)
gc.fillText(b.lines[i],x,y);
unsetShadow();
}
}
gc.restore();
},
plot={
line: function() {
var nds=dlen,cy=drng?rh/drng:0,d,g,i,j,v,l,cu=mode=="curve",ly=ry2+labels.marks+2,
drawPath=function(gc,x,y,v,n1,n2) {
var n=n1,nx,ny,mx,my,px,py;
while(n<=n2) {
if(v[n]===null)
n++;
else if(cu) {
nx=x[n];
ny=y[n];
n++;
while(n<=n2 && v[n]===null) n++;
if(n>n2)
gc.lineTo(nx,ny);
else {
mx=(nx+x[n])/2;
my=(ny+y[n])/2;
px=(nx+mx)/2;
py=(ny+my)/2;
gc.quadraticCurveTo(nx,ny,px,py);
px=(mx+x[n])/2;
py=(my+y[n])/2;
gc.quadraticCurveTo(mx,my,px,py);
}
} else {
gc.lineTo(x[n],y[n]);
n++;
}
}
};
overpts=[];
while(d=data[--nds])
if((l=d.len)>1) {
//calc
var x=[],y=[],n1,n2;
for(i=0;i<l;++i) {
v=0;
if(flag.stack) for(j=0;j<=nds;j++) v+=data[j].val[i]-dinc;
else v=d.val[i]-dinc;
x.push(rx+Math.round(i*(rw/(l-1))));
y.push(ry2-Math.round(cy*v*acf));
}
if(nds+1==dlen) drawXGrid(x);
overpts.push({x:x,y:y,v:data[nds].val,nds:nds});
i--;
x.push(rx+Math.round(i*(rw/(l-1))));
y.push(ry2-Math.round(cy*v));
//dont draw leading/ending null values
n1=0;
while(d.val[n1]===null) n1++;
n2=l-1;
while(d.val[n2]===null) n2--;
//fill
if(n1<=n2 && setGradient(d.col)) {
gc.beginPath();
gc.moveTo(x[n1],ry2);
gc.lineTo(x[n1],y[n1]);
drawPath(gc,x,y,d.val,n1,n2);
gc.lineTo(x[n2],ry2);
gc.closePath();
gc.fill();
}
//draw lines
gc.beginPath();
gc.moveTo(x[n1],y[n1]);
drawPath(gc,x,y,d.val,n1,n2);
stroke(d.col);
//draw x labels
if(nds==0)
for(i=0;i<l;++i)
drawXLabel(i,x[i],ly,'center',mirror.y?'bottom':'top','h');
//draw points
if(radiuspoint) {
gc.fillStyle=d.col;
for(i=0;i<l;++i)
if(d.val[i]!=undefined){
gc.beginPath();
gc.arc(x[i],y[i],radiuspoint,0,2*Math.PI);
gc.closePath();
gc.fill();
}
}
}
},
curve: function(){ plot.line() },
chart: function() {
overpts = [];
if(dlen){
var nd,nds,nbd=data[0].len,m=barspace=='a'?(dlen>1?4:0):barspace,
fs=flag.stack,fv=flag.vertical,nbdsv=fs?1:dlen,tbw=fv?rh:rw,
bw=(nbd && dlen)?(((tbw-(m*(nbd-1)))/nbd)/nbdsv)-1:0,
d,g,y,y1,y2,x,x1,x2,tcf=fv?rw:rh,ly=ry2+labels.marks+2,gx=[],
cf=fs?(dsum?tcf/dsum:0):(dmax?tcf/dmax:0);
if(bw<0) bw=0;
for(y=fv?ry:rx,g=(fv?rh:rw)/(nbd||1),nd=0;nd<=nbd;nd++) gx.push(Math.round(y+nd*g));
drawXGrid(gx);
for(nds=0;nds<dlen;nds++) overpts.push({x:[],y:[],v:[],nds:nds});
if(fv)
for(y=ry,nd=0;nd<nbd;nd++) {
drawXLabel(nd,rx-labels.marks-2,y,'right','top','v');
x=rx;
for(nds=0;nds<dlen;nds++) {
d=data[nds];
x1=fs?x:rx;
x=x1+Math.round(cf*d.val[nd]*acf);
y1=Math.round(y);
y2=Math.round(y+bw);
if(d.val[nd]!==null) {
gc.beginPath();
gc.moveTo(x1,y1);
gc.lineTo(x1,y2);
gc.lineTo(x,y2);
gc.lineTo(x,y1);
fillstroke(d.col);
}
overpts[nds].x.push(x);
overpts[nds].y.push(Math.floor(y+bw/2));
overpts[nds].v.push(d.val[nd]);
if(!fs) y+=bw+1;
}
y+=fs?bw+1+m:m;
}
else
for(x=rx,nd=0;nd<nbd;nd++) {
drawXLabel(nd,x+(((bw+1)*nbdsv)/2),ly,'center',mirror.y?'bottom':'top','h');