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formula-prop.js
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formula-prop.js
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for(let i=0;i<rows;i++)
{
for(let j=0;j<col;j++)
{
let cell= document.querySelector(`.cell[rowid="${i}"][colid="${j}"]`);
cell.addEventListener("blur", (e)=>
{
let addressbar=document.querySelector(".address-bar");
let addresss=addressbar.value;
let[cell,cellprop]=activeCell(addresss);
let enteredData=cell.innerText;
if (enteredData === cellprop.value) return;
cellprop.value=enteredData;
removeChildFromParent(cellprop.formula);
cellprop.formula = "";
updateChildrenCells(addresss);
})
}
}
let formulaBar=document.querySelector(".formula-bar");
formulaBar.addEventListener("keydown", async (e)=>
{
let inputFormula=formulaBar.value;
if(e.key=="Enter"&& inputFormula)
{
let addressbar=document.querySelector(".address-bar");
let addresss=addressbar.value;
let [cell,cellprop]= activeCell(addresss);
if(inputFormula!=cellprop.formula) removeChildFromParent(cellprop.formula);
addChildToGraph(addresss,inputFormula);
let cycleResponse= isCyclic(graphComponentMatrix);
if(cycleResponse)
{
// alert("Your Formula has cycle")
let response=confirm("Your formula is cyclic. Do you want to trace your path?")
while (response)
{
await isCyclicTracePath(graphComponentMatrix ,cycleResponse);
response=confirm("Your formula is cyclic. Do you want to trace your path?")
}
removeChildFromGraph(inputFormula,addresss);
return;
}
let evaluatedValue=evaluateFormula(inputFormula);
setUiCellprop(evaluatedValue,inputFormula,addresss);
addChildToParent(inputFormula);
updateChildrenCells(addresss);
}
})
function removeChildFromGraph(formula , childAddress)
{
let [crowid , ccolid]=decode(childAddress);
let encodedFormula=formula.split(" ");
for(let i=0;i<encodedFormula.length;i++)
{
let asciiValue=encodedFormula[i].charCodeAt(0);
if(asciiValue>=65 && asciiValue<=90)
{
let [prid,pcid]=decode(encodedFormula[i]);
graphComponentMatrix[prid][pcid].pop();
}
}
}
function addChildToGraph(childAddress , formula)
{
let [crowid , ccolid]=decode(childAddress);
let encodedFormula=formula.split(" ");
for(let i=0;i<encodedFormula.length;i++)
{
let asciiValue=encodedFormula[i].charCodeAt(0);
if(asciiValue>=65 && asciiValue<=90)
{
let [prid,pcid]=decode(encodedFormula[i]);
graphComponentMatrix[prid][pcid].push([crowid,ccolid]);
}
}
}
function updateChildrenCells(address)
{
let [cell,cellprop]=activeCell(address);
let child= cellprop.children;
for(let i=0;i<child.length;i++)
{
let childAddr=child[i];
let[childCell, childCellProp]=activeCell(childAddr);
let formula=childCellProp.formula;
let evaluatedValue=evaluateFormula(formula);
setUiCellprop(evaluatedValue,formula,childAddr);
updateChildrenCells(childAddr);
}
}
function removeChildFromParent(formula)
{
let encodedFormula=formula.split(" ");
for(let i=0;i<encodedFormula.length;i++)
{
let adrs=addressbar.value;
let asciiValue=encodedFormula[i].charCodeAt(0);
if(asciiValue>=65 && asciiValue<=90)
{
let [cell,cellprop]=activeCell(encodedFormula[i]);
let ind=cellprop.children.indexOf(adrs);
cellprop.children.slice(ind,1);
}
}
}
function addChildToParent(formula)
{
let encodedFormula=formula.split(" ");
for(let i=0;i<encodedFormula.length;i++)
{
let adrs=addressbar.value;
let asciiValue=encodedFormula[i].charCodeAt(0);
if(asciiValue>=65 && asciiValue<=90)
{
let [cell,cellprop]=activeCell(encodedFormula[i]);
cellprop.children.push(adrs)
}
}
}
function evaluateFormula(formula)
{
let encodedFormula=formula.split(" ");
for(let i=0;i<encodedFormula.length;i++)
{
let asciiValue=encodedFormula[i].charCodeAt(0);
if(asciiValue>=65 && asciiValue<=90)
{
let [cell,cellprop]=activeCell(encodedFormula[i]);
encodedFormula[i]=cellprop.value;
}
}
let decodedFormula=encodedFormula.join(" ");
return eval(decodedFormula);
}
function setUiCellprop(evaluatedValue, evaluatedFormula)
{
let address=addressbar.value;
let[cell,cellprop]=activeCell(address);
cell.innerText=evaluatedValue;
cellprop.value=evaluatedValue;
cellprop.formula=evaluatedFormula;
}
function setUiCellprop(evaluatedValue, evaluatedFormula,address){
// let address=addressbar.value;
let[cell,cellprop]=activeCell(address);
cell.innerText=evaluatedValue;
cellprop.value=evaluatedValue;
cellprop.formula=evaluatedFormula;
}