p5.js-web-editor/static/interceptor-functions.js

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var Interceptor = {
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prevTotalCount :0,
totalCount : 0,
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currentColor : 'white',
bgColor : 'white',
objectArea : 0,
coordinates : [],
objectDescription : '',
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canvasDetails : {
width : 0,
height: 0
},
setupObject : {
objectArray : [],
objectCount : 0,
objectTypeCount : {}
},
drawObject : {
objectArray : [],
objectCount : 0,
objectTypeCount : {}
},
isCleared : false,
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getColorName : function(arguments) {
if(arguments.length==3) {
//assuming that we are doing RGB - convert RGB values to a name
var color = '#' + arguments[0].toString(16).paddingLeft("00") + arguments[1].toString(16).paddingLeft("00") + arguments[2].toString(16).paddingLeft("00");
var n_match = ntc.name(color);
return n_match[1];
}
else if(arguments.length==1) {
if(!(typeof(arguments[0])).localeCompare("number")) {
//assuming that we are doing RGB - this would be a grayscale number
if(arguments[0]<10) {
return 'black';
}
else if(arguments[0]>240) {
return 'white';
}
else {
return 'grey';
}
}
else if(!(typeof(arguments[0])).localeCompare("string")) {
if(!arguments[0].charAt(0).localeCompare('#')) {
//if user has entered a hex color
var n_match = ntc.name(arguments[0]);
return n_match[1];
}
else {
return arguments[0];
}
}
}
},
/* return which part of the canvas an object os present */
canvasAreaLocation : function(x,arguments,canvasX,canvasY){
var x_loc,y_loc;
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for(var i=0;i<arguments.length;i++) {
a = arguments[i];
if(x.params[i].description.indexOf("x-coordinate")>-1) {
x_loc = a;
}
else if(x.params[i].description.indexOf("y-coordinate")>-1) {
y_loc = a;
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}
}
if(x_loc<0.4*canvasX) {
if(y_loc<0.4*canvasY) {
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return 'top left';
}
else if(y_loc>0.6*canvasY) {
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return 'bottom left';
}
else {
return 'mid left';
}
}
else if(x_loc>0.6*canvasX) {
if(y_loc<0.4*canvasY) {
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return 'top right';
}
else if(y_loc>0.6*canvasY) {
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return 'bottom right';
}
else {
return 'mid right';
}
}
else {
if(y_loc<0.4*canvasY) {
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return 'top middle';
}
else if(y_loc>0.6*canvasY) {
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return 'bottom middle';
}
else {
return 'middle';
}
}
},
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clearVariables : function(object) {
object.objectTypeCount = {};
object.objectCount = 0;
this.isCleared = true;
return object;
},
populateObject : function(x,arguments, object ,table, isDraw) {
objectCount = object.objectCount;
objectArray = object.objectArray;
objectTypeCount = object.objectTypeCount;
if(!isDraw) {
//check for special function in setup -> createCanvas
if(!x.name.localeCompare('createCanvas')) {
this.canvasDetails.width = arguments[0];
this.canvasDetails.height = arguments[1];
}
}
//check for speacial functions in general -> background/fill
if(!x.name.localeCompare('fill')) {
this.currentColor = this.getColorName(arguments);
}
else if(!x.name.localeCompare('background')) {
this.bgColor = this.getColorName(arguments);
}
else if(!x.module.localeCompare('Shape') || !x.module.localeCompare('Typography') &&((!x.submodule)||(x.submodule.localeCompare('Attributes')!=0)) ){
this.objectArea = this.getObjectArea(x.name, arguments);
var canvasLocation = this.canvasAreaLocation(x, arguments ,width,height);
if(x.name.localeCompare('text')){
this.objectDescription = x.name;
}
else {
this.objectDescription = String(arguments[0]).substring(0,20);
}
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this.coordinates = [];
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objectArray[objectCount] = {
'type' : this.currentColor + ' colored ' + this.objectDescription ,
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'location': canvasLocation,
'area': this.objectArea,
'co-ordinates': this.coordinates
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};
//make edits if it is a text object
if(!x.name.localeCompare('text')){
objectArray[objectCount]['type'] = this.objectDescription;
objectArray[objectCount]['color of text'] = this.currentColor;
}
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//add the object(shape/text) parameters in objectArray
for(var i=0;i<arguments.length;i++) {
if(!(typeof(arguments[i])).localeCompare('number')){
arguments[i] = round(arguments[i]);
}
if(x.params[i].description.indexOf("x-coordinate")>-1) {
objectArray[objectCount]['co-ordinates'].push(arguments[i]+'x')
}
else if(x.params[i].description.indexOf("y-coordinate")>-1) {
objectArray[objectCount]['co-ordinates'].push(arguments[i]+'y')
}
else{
objectArray[objectCount][x.params[i].description]=arguments[i];
}
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}
if(objectTypeCount[x.name]) {
objectTypeCount[x.name]++;
}
else {
objectTypeCount[x.name]=1;
}
//creating the table to contain the object(shape/text) details
objectCount++;
}
return ({
objectCount : objectCount,
objectArray : objectArray,
objectTypeCount : objectTypeCount
});
},
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populateTable : function(table, objectArray) {
if(this.totalCount<100) {
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if(this.prevTotalCount > this.totalCount) {
for(var j =0;j<this.totalCount;j++) {
var row = table.children[j];
var tempCol = row.children.length;
var properties = Object.keys(objectArray[j]);
if(tempCol<properties.length){ //ie - there are more cols now
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for(var i =0;i<tempCol;i++) {
if(properties[i].localeCompare('type')) {
row.children[i].innerHTML = properties[i] + ' = ' + objectArray[j][properties[i]];
}
else {
row.children[i].innerHTML = objectArray[j][properties[i]];
}
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}
for(var i=tempCol;i < properties.length;i++) {
var col = document.createElement('td');
if(properties[i].localeCompare('type')) {
col.children[i].innerHTML = properties[i] + ' = ' + objectArray[j][properties[i]];
}
else {
col.children[i].innerHTML = objectArray[j][properties[i]];
}
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row.appendChild(col);
}
}
else{ // ie - there are fewer cols now
for(var i =0;i<properties.length;i++) {
// console.log(properties[i].localeCompare('type'));
if(properties[i].localeCompare('type')) {
row.children[i].innerHTML = properties[i] + ' = ' + objectArray[j][properties[i]];
}
else {
row.children[i].innerHTML = objectArray[j][properties[i]];
}
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}
for(var i=properties.length;i<tempCol;i++) {
var tempCol = row.children[i];
row.removeChild(tempCol);
}
}
}
for(var j = this.totalCount;j<this.prevTotalCount;j++) {
var tempRow = table.children[j];
table.removeChild(tempRow);
}
} else if(this.prevTotalCount <= this.totalCount) {
for(var j =0;j<this.prevTotalCount;j++) {
var row = table.children[j];
var tempCol = row.children.length;
var properties = Object.keys(objectArray[j]);
if(tempCol<properties.length){ //ie - there are more cols now
for(var i =0;i<=tempCol;i++) {
if(properties[i].localeCompare('type')) {
row.children[i].innerHTML = properties[i] + ' = ' + objectArray[j][properties[i]];
}
else {
row.children[i].innerHTML = objectArray[j][properties[i]];
}
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}
for(var i=tempCol;i < properties.length;i++) {
var col = document.createElement('td');
if(properties[i].localeCompare('type')) {
col.innerHTML = properties[i] + ' = ' + objectArray[j][properties[i]];
}
else {
col.innerHTML = objectArray[j][properties[i]];
}
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row.appendChild(col);
}
}
else{ // ie - there are fewer cols now
for(var i =0;i<properties.length;i++) {
if(properties[i].localeCompare('type')) {
row.children[i].innerHTML = properties[i] + ' = ' + objectArray[j][properties[i]];
}
else {
row.children[i].innerHTML = objectArray[j][properties[i]];
}
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}
for(var i=properties.length;i<tempCol;i++) {
var tempCol = row.children[i];
row.removeChild(tempCol);
}
}
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}
for(var j = this.prevTotalCount;j<this.totalCount;j++) {
var row = document.createElement('tr');
row.id = 'object' + j;
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var properties = Object.keys(objectArray[j]);
for(var i =0;i<properties.length;i++) {
var col = document.createElement('td');
if(properties[i].localeCompare('type')) {
col.innerHTML = properties[i] + ' = ' + objectArray[j][properties[i]];
}
else {
col.innerHTML = objectArray[j][properties[i]];
}
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row.appendChild(col);
}
table.appendChild(row);
}
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}
}
},
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getObjectArea : function(objectType,arguments){
var objectArea = 0;
if(!objectType.localeCompare('arc')) {
objectArea = 0;
}
else if(!objectType.localeCompare('ellipse')) {
objectArea = 3.14 * arguments[2]*arguments[3]/4;
}
else if(!objectType.localeCompare('line')) {
objectArea = 0;
}
else if(!objectType.localeCompare('point')) {
objectArea = 0;
}
else if(!objectType.localeCompare('quad')) {
//x1y2+x2y3+x3y4+x4y1x2y1x3y2x4y3x1y4
objectArea = (arguments[0]*arguments[1]+arguments[2]*arguments[3]+arguments[4]*arguments[5]+arguments[6]*arguments[7]) - (arguments[2]*arguments[1]+arguments[4]*arguments[3]+arguments[6]*arguments[5]+arguments[0]*arguments[7]);
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}
else if(!objectType.localeCompare('rect')) {
objectArea = arguments[2]*arguments[3];
}
else if(!objectType.localeCompare('triangle')) {
objectArea = abs( arguments[0]*(arguments[3] - arguments[5]) + arguments[2]*(arguments[5] - arguments[1]) + arguments[4]*(arguments[1] - arguments[3]));
//A x ( B y C y ) + B x ( C y A y ) + C x ( A y B y )
}
return objectArea;
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},
getSummary : function(object1, object2, element) {
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this.prevTotalCount = this.totalCount;
this.totalCount = object1.objectCount + object2.objectCount;
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element.innerHTML = '';
element.innerHTML += this.bgColor + ' coloured canvas is ' + this.canvasDetails.width + ' by ' + this.canvasDetails.height + ' of area ' + this.canvasDetails.width*this.canvasDetails.height;
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if(this.totalCount > 1 ) {
element.innerHTML += ' Contains ' + this.totalCount + ' objects - ';
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}
else {
element.innerHTML += ' Contains ' + this.totalCount + ' object - ';
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}
if(object2.objectCount>0 || object1.objectCount>0 ) {
totObjectTypeCount = MergeObjRecursive(object1.objectTypeCount, object2.objectTypeCount);
var keys = Object.keys(totObjectTypeCount);
for(var i=0;i<keys.length;i++) {
element.innerHTML += totObjectTypeCount[keys[i]] + ' ' + keys[i] + ' ';
}
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var objectList = document.createElement('ul');
if(this.totalCount<100){
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for(var i=0; i <object1.objectArray.length; i++) {
var objectListItem = document.createElement('li');
objectList.appendChild(objectListItem);
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var objKeys = Object.keys(object1.objectArray[i]);
var objLink = document.createElement('a');
objLink.href = "#object" + i;
objLink.innerHTML = object1.objectArray[i]['type'];
objectListItem.appendChild(objLink);
objectListItem.innerHTML += '; area = ' + object1.objectArray[i]['area'] + '; location = ' + object1.objectArray[i]['location'];
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}
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for(var i=0; i <object2.objectArray.length; i++) {
var objectListItem = document.createElement('li');
objectList.appendChild(objectListItem);
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var objKeys = Object.keys(object2.objectArray[i]);
var objLink = document.createElement('a');
objLink.href = "#object" + (i + object1.objectArray.length);;
objLink.innerHTML = object2.objectArray[i]['type'];
objectListItem.appendChild(objLink);
objectListItem.innerHTML += '; area = ' + object2.objectArray[i]['area'] + '; location = ' + object2.objectArray[i]['location'];
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}
element.appendChild(objectList);
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}
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}
}
};