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Graph.js
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Graph.js
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/**
* Created by mohit on 6/5/16.
*/
;(function (window){
// checking for libraries required
if(typeof jQuery !== "function"){
console.error('jQuery Library not found. Include jQuery.js and try Again');
}
if(typeof Treant !== "function"){
console.error('Treant Library not found. Include Treant.js and try Again');
}
if(typeof Queue !== "function"){
console.error('Queue Library not found. Include Queue.js and try Again');
}
// every single object in tree is referred here as a node
// variable take care of unique node no. to every node
var node = 1;
var plotobj;
// global object for information of node number of super node (i.e. parent of every node ) and its children (i.e.
// parents of other sub graphs)
var global = {};
// this function returns time of creation of node objects
Graph.timenow = function () {
var t = new Date();
return t.getTime();
};
// global object that contains information of all the objects created
global['global']= {
namestring :'global',
nodeno :0,
crtime :Graph.timenow(),
parentname : 'super',
children : [],
nodes:0
};
var globallen = function () {
var k=0;
for(var i in global)
k++;
return k;
};
// Graph function creates new node objects of names passed as parameter or return reference to nodes which
// already available . ( Remember each return from here ia a object which contains node objects as its properties )
function Graph() {
// if Graph function called without any parameter it will return object of node objects list available till that time
if(Array.prototype.slice.call(arguments).length == 0){
var ab = new Graph.make('');
ab['global'] = global['global'];
return ab;
}
// for the first time creation of nodes passed as parameter ( as global object is empty except 'global' node property )
if(globallen() != 1) {
var arr = [];
var a =[];
// Array.prototype.slice.call(arguments) is a dynamically created node Object such that arguments could easily traversed
for (var i = 0; i < Array.prototype.slice.call(arguments).length; i++) {
if(global[Array.prototype.slice.call(arguments)[i]])
arr.push(Array.prototype.slice.call(arguments)[i]);
else
a.push(Array.prototype.slice.call(arguments)[i]);
}
var obj = new Graph.make(Array.prototype.slice.call(a));
for(i = 0 ; i< arr.length; i++)
obj[arr[i]]=global[arr[i]];
return obj;
}
else {
return new Graph.make(Array.prototype.slice.call(arguments));
}
}
// Graph.make function actually creates an ( object of ( nodes object ) ) ( i.e. ' this ') , after being called by Graph
// also these created node objects are being referenced to the global object , means only one copy is available at a
// in memory ( i.e. in global object ) . Also methods on 'this' object ( i.e. function prototype methods ) will also
// work on global object because every time we are creating 'this' object ( using new ) either string is empty or not
// if passed string is empty then we have empty 'this' returned from Graph.make in Graph as an object 'obj' and then
// further node objects are being added to this returned ' this ' object .( that's why method on 'this' (function
// prototype ) will also work on every returned object by Graph )
Graph.make = function (string){
var o;
for( var i = 0 ; i <string.length ; i++) {
o = {
namestring:string[i],
nodeno :node++,
crtime : Graph.timenow(),
parentname : 'global',
children : [],
dataobj : {
parent :'',
text : { name:string[i] }
}
};
this[string[i]] = o;
global[string[i]] = o;
global['global'].nodes++;
var a = new Graph.make('');
a['global'] = global['global'];
a.addchildren(o.namestring);
}
};
// Graph.calheight will return height of node passed as a parameter
Graph.calheight = function (q) {
var l=1;
var h;
for(var i in global[q].children){
h = 1 + Graph.calheight(global[q].children[i]);
if(h>l)
l=h;
}
return l;
};
// returns a first object's name of the ( object of ( node objects ) ) passed as a parameter
Graph.objname = function (a) {
for(var i in a)
if(global[i])
return global[i].namestring;
};
// returns length ( no. of properties ) of object passed
Graph.thislen = function (a) {
var k=0;
for(j in a )
if(global[j])
k++;
return k;
};
// this removes a node and its sub nodes ( nodes will be set to null such that it will be collected by garbage collector
// sometime later )
Graph.clearchain = function (st) {
// iteration of Graph.clearchain function to delete all the nodes
for(var j in global[st].children)
Graph.clearchain(global[st].children[j]);
delete global[st];
//console.error(global['global'].nodes);
global['global'].nodes--;
};
// Graph.clear node will delete node information of children nodes from dataobj of genral node ( created by Graph.make )
Graph.clearnode = function (t) {
for(var u in global[t].dataobj.children)
Graph.clearnode(global[t].dataobj.children[u].text.name);
delete global[t].dataobj;
};
/*
// Graph.makedataobj to create dataobj object in each object ( deleted to deallocate memory allocated by Treant Constructor )
Graph.makedataobj = function (v) {
for(var u in global[v].children)
Graph.makedataobj(global[v].children[u]);
global[v].dataobj = {
parent:'',
text:{ name :global[v].namestring}
};
};*/
// Graph.clearchild to empty the children array in each node ( created by Treant Constructor )
Graph.clearchild = function (v) {
for(var u in global[v].children)
Graph.clearchild(global[v].children[u]);
delete global[v].dataobj.children ;
}
// Graph.prototype is actually a prototype for Graph.make function which are being referenced to each other in later section
// all the objects created using Graph.make using 'new' operator will have this object as its prototype
Graph.prototype = {
adata : function () {
console.log(global);
},
// set properties of individual nodes except Parent Property
setnode:function (f) {
if(Graph.thislen(this) === 1) {
for (var i in f) {
global[Graph.objname(this)].dataobj[i] = f[i];
}
}
else
console.error('Please Choose one node at time to represent it as a parent');
},
// plot Graph selected by Graph using ' Treant ' Library functions
plot: function(parameter) {
if(Graph.thislen(this) === 1) {
if (parameter && parameter.hasOwnProperty('container')) {
//To clear the graph which is already present at our desired location
if (plotobj) {
// For clearing children array in each node's ( created by Graph.make Constructor ) children Array
for(var h in global['global'].children)
if(global[global['global'].children[h]].dataobj)
Graph.clearchild(global['global'].children[h]);
/*
// Now creating dataobj in each object created by Graph.make ( as dataobj has been deleted in above step )
// for(var h in global['global'].children)
// Graph.makedataobj(global['global'].children[h]);*/
plotobj.destroy();
}
// Array contains all the information Treant constructor for the possible chart configurations
// Some are all ready set to default ( note : if some Property is not given here , you can edit here )
var a = [{
container: parameter.container,
rootOrientation: parameter.rootOrientation || 'NORTH',
nodeAlign: parameter.nodeAlign || 'CENTER',
levelSeparation: parameter.levelSeparation || 30,
siblingSeparation: parameter.siblingSeparation || 30,
subTeeSeparation: parameter.subTeeSeparation || 30,
hideRootNode: parameter || hideRootNode || true,
animateOnInit: parameter.animateOnInit || false,
animateOnInitDelay: parameter.animateOnInitDelay || 500,
scrollbar: parameter.scrollbar || 'native',
padding: parameter.padding || 15,
connectors: parameter.connectors || {type: 'step'}
}];
if (this['global'])
a.push({
text: {name: 'global'}
});
else {
a[0].hideRootNode = false;
delete global[Graph.objname(this)].dataobj.parent;
a.push(global[Graph.objname(this)].dataobj);
}
// variables used to create a array of nodes which will be used in function constructor 'Treant'
var s;
var Q = new Queue();
var B = [];
if (this['global']) {
B.push('global');
Q.enqueue('global');
}
else {
B.push(Graph.objname(this));
Q.enqueue(Graph.objname(this));
}
while (Q.getLength() > 0) {
s = Q.dequeue();
for (var i in global[s].children) {
//console.error('s = ' + s);
// console.error('Q = ' + Q);
//console.log('B = ' + B);
Q.enqueue(global[s].children[i]);
B.push(global[s].children[i]);
if (s === a[1].text.name){
global[global[s].children[i]].dataobj.parent = a[1];
a.push(global[global[s].children[i]].dataobj);
}
else {
global[global[s].children[i]].dataobj.parent = a[B.indexOf(s) + 1];
a.push(global[global[s].children[i]].dataobj);
}
}
}
//console.log(a);
plotobj = new Treant(a);
}
else
console.error('Please Select Container for your ploting of the Graph . After selecting container try again .');
}
else
console.error('Please Choose one node at time to represent it as a parent');
},
// it will return max height of the tree starting from super node
maxheight:function () {
if(this['global']) {
if (Graph.thislen(this) > 1)
console.error('Invalid no. of nodes ( Try Again with one node at a time )');
else
return Graph.calheight('global');
}
},
// height will return the height of the single node passed to it upto its last grandchild
height:function () {
if(!this['global']){
if (Graph.thislen(this) !== 1)
console.error('Invalid no. of nodes ( Try Again with one node at a time )');
else
return Graph.calheight(Graph.objname(this));
}
else
console.error('This Operation is not permitted on Global Object or node ');
},
// method for removal of children passed to the function from its parent objects upon which it is being called
removechildren:function () {
if(!this['global']){
for(var i=0;i<arguments.length;i++){
if(!global[Array.prototype.slice.call(arguments)[i]])
console.error('No any node of name' + Array.prototype.slice.call(arguments)[i] +' exists . Try Again after creating it');
else {
var j=0;
for(var k in this)
if (global[k])
if (global[k].children.indexOf(Array.prototype.slice.call(arguments)[i])>=0) {
j = 1;
var z=[];
for(var l in global[k].children )
if(global[k].children[l] !== Array.prototype.slice.call(arguments)[i])
z.push(global[k].children[l]);
global[k].children=z;
if(global[k] !== 'global') {
z=[];
for (var l in global[k].dataobj.children) {
if (global[k].dataobj.children[l].text.name !== Array.prototype.slice.call(arguments)[i])
z.push(global[k].dataobj.children[l]);
}
global[k].dataobj.children = z;
}
if(global[Array.prototype.slice.call(arguments)[i]].dataobj)
Graph.clearnode(Array.prototype.slice.call(arguments)[i]);
Graph.clearchain(Array.prototype.slice.call(arguments)[i]);
}
if(j === 0)
console.error('No any child of name ' + Array.prototype.slice.call(arguments)[i] +' exists in any of the choosen parents');
}
}
}
else
console.error('This Operation is not permitted on Global Object or node ');
},
// method for removal of node objects
remove: function () {
if(!this['global']) {
for (var i in this)
if (global[i]) {
var z = [];
for (var j in global[global[i].parentname].children) {
if (global[global[i].parentname].children[j] !== global[i].namestring)
z.push(global[global[i].parentname].children[j]);
}
//console.log(global[i].namestring);
//console.log(z);
global[global[i].parentname].children = z;
if(global[i].parentname !== 'global') {
z = [];
for (var j in global[global[i].parentname].dataobj.children) {
if (global[global[i].parentname].dataobj.children[j].text.name !== global[i].namestring) {
z.push(global[global[i].parentname].dataobj.children[j]);
}
}
global[global[i].parentname].dataobj.children = z;
}
if(global[global[i].namestring].dataobj){
Graph.clearnode(global[i].namestring);
}
Graph.clearchain(global[i].namestring);
}
}
else
console.error('This Operation is not permitted on Global Object or node ');
},
// method for showing information of individual or a group of node objects
showdata: function () {
if(!this['global']) {
for (var i in this)
if (global[i])
console.error(this[i]);
}
else
console.error('This Operation is not permitted on Global Object or node ');
},
// method for changing parent of selected nodes
setparent : function () {
if(!this['global']) {
if (arguments.length > 1)
console.error('more than one parent to single child is not allowed');
else if (!global[arguments[0]])
console.error(arguments[0] + ' Does not exist in node list . Try again after Creating it ');
else {
for (var i in this)
if (global[i]) {
if (global[i].namestring !== arguments[0]) {
var z =[];
for( var x in global[global[i].parentname].children){
if(global[global[i].parentname].children[x] !== global[i].namestring)
z.push(global[global[i].parentname].children[x]);
}
global[global[i].parentname].children = z;
global[i].parentname = arguments[0];
global[arguments[0]].children.push(global[i].namestring);
}
else
console.error('for ' + global[i].namestring + ' this operation is invalid');
}
}
return this;
}
else
console.error('This Operation is not permitted on Global Object or node ');
},
// method for adding children to the selected nodes
addchildren : function () {
if (Graph.thislen(this) > 1) {
console.error('more than one parent to single child is not allowed');
}
else {
for (var i = 0; i < arguments.length; i++) {
if (!global[Array.prototype.slice.call(arguments)[i]])
console.error(Array.prototype.slice.call(arguments)[i] + ' Does not exist in node list');
else if (this[Graph.objname(this)].namestring === Array.prototype.slice.call(arguments)[i])
console.error('for ' + Array.prototype.slice.call(arguments)[i] + ' this operation is invalid ');
else if (global[Array.prototype.slice.call(arguments)[i]]) {
if(global[global[Array.prototype.slice.call(arguments)[i]].parentname].children.indexOf(Array.prototype.slice.call(arguments)[i]) > -1) {
var z = [];
for(var y in global[global[Array.prototype.slice.call(arguments)[i]].parentname].children )
if(Array.prototype.slice.call(arguments)[i] !== global[global[Array.prototype.slice.call(arguments)[i]].parentname].children[y])
z.push(global[global[Array.prototype.slice.call(arguments)[i]].parentname].children[y]);
global[global[Array.prototype.slice.call(arguments)[i]].parentname].children = z;
}
global[Array.prototype.slice.call(arguments)[i]].parentname = this[Graph.objname(this)].namestring;
this[Graph.objname(this)].children.push(Array.prototype.slice.call(arguments)[i]);
//if(Graph.objname(this) !== 'global')
//global['global'].children.pop(Array.prototype.slice.call(arguments)[i]);
}
}
}
return this;
}
};
// this statement sets prototype of Graph.make function equal to prototype of Graph function
// although prototype of Graph doesn't do any work in creating any objects its just a collection
// of all the methods used with nodes object
Graph.make.prototype = Graph.prototype;
// attaching our Graph function to window object passed to our IIFE function
window.Graph = Graph;
// passing window object and jQuery function to our IIFE function
}(window));