SimpleEquationSolver

Description

This is a very Simple Equation Solver. The Purpose of this application is to implement the native Window commands of AIR. Native Window Commands Include closing a window, moving a window and resizing a window. The Application also implements a customwindow.

The Applciation UI

As can be clearly understood from the UI we are going to find the value of x,y and z.

The equations are in form

A11x + A12y + A13z = C1 A21x + A22y + A23z = C2 A31x + A32y + A33z = C3

A11,A12,A13,A21,A22,A23,A31,A32,A33 are coeffecient and C1,C2 and C3 are constant.

Two Buttons G and C. G for Executing. C for Clearing the Fields.

Closing the Native Window

Create a close button as shown in the UI. The Code for the same becomes.

windowCloseButton.addEventListener(MouseEvent.CLICK, closeWindowFunction);
function closeWindowFunction(me:MouseEvent):void
{
    stage.nativeWindow.close();
}

Moving the Native Window

Create an Opaque background and conver it to MovieClip as only to MovieClips we can apply Native Window Commands. Now Program the following Mouse Events as shown to create a window dragging code.

customWindow.addEventListener(MouseEvent.MOUSE_DOWN, startDragFunction);
function startDragFunction(me:MouseEvent):void
{
    stage.nativeWindow.startMove();
}

Solving the Equation

This is a basic matrix solution so solution is pretty easy and is programmed as shown.

var row1:Array = new Array(a11, a12, a13);
var row2:Array = new Array(a21, a22, a23);
var row3:Array = new Array(a31, a32, a33);
var cc:Array = new Array(c1, c2, c3);
var j:int;
for(j = 0; j < 3; j++)
{
    row1[j].restrict = "0123456789";
    row2[j].restrict = "0123456789";
    row3[j].restrict = "0123456789";
    cc[j].restrict = "0123456789";
}
//INTILIZATION OF ALL FIELDS WITH ZERO
stage.addEventListener(Event.ENTER_FRAME, initializeFunction);
function initializeFunction(etemp:Event):void
{
    var i:int;
    for(i = 0; i < 3; i++)
    {
        row1[i].text = "0";
        row2[i].text = "0";
        row3[i].text = "0";
        cc[i].text = "0";
    }
    stage.removeEventListener(Event.ENTER_FRAME, initializeFunction);
}
function executeStatements():void
{
    var mod:Number = 0;
    var changing_mod:Number = 0;
    mod = Number(row1[0].text)*((Number(row2[1].text)*Number(row3[2].text)) - (Number(row2[2].text)*Number(row3[1].text)))

        - Number(row1[1].text)*((Number(row2[0].text)*Number(row3[2].text)) - (Number(row2[2].text)*Number(row3[0].text)))
        + Number(row1[2].text)*((Number(row2[0].text)*Number(row3[1].text)) - (Number(row2[1].text)*Number(row3[0].text)));
    changing_mod = Number(cc[0].text)*((Number(row2[1].text)*Number(row3[2].text)) - (Number(row2[2].text)*Number(row3[1].text)))
        - Number(row1[1].text)*((Number(cc[1].text)*Number(row3[2].text)) - (Number(row2[2].text)*Number(cc[2].text)))
        + Number(row1[2].text)*((Number(cc[1].text)*Number(row3[1].text)) - (Number(row2[1].text)*Number(cc[2].text)));
    outputValue.text = "X = " + String(changing_mod/mod);
    changing_mod = Number(row1[0].text)*((Number(cc[1].text)*Number(row3[2].text)) - (Number(row2[2].text)*Number(cc[2].text)))
        - Number(cc[0].text)*((Number(row2[0].text)*Number(row3[2].text)) - (Number(row2[2].text)*Number(row3[0].text)))
        + Number(row1[2].text)*((Number(row2[0].text)*Number(cc[2].text)) - (Number(cc[1].text)*Number(row3[0].text)));
    outputValue.text = outputValue.text + " \nY = " + String(changing_mod/mod);
    changing_mod = Number(row1[0].text)*((Number(row2[1].text)*Number(row3[2].text)) - (Number(cc[1].text)*Number(row3[1].text)))
        - Number(row1[1].text)*((Number(row2[0].text)*Number(cc[2].text)) - (Number(cc[1].text)*Number(row3[0].text)))
        + Number(cc[0].text)*((Number(row2[0].text)*Number(row3[1].text)) - (Number(row2[1].text)*Number(row3[0].text)));
    outputValue.text = outputValue.text + " \nZ = " + String(changing_mod/mod);
    trace(mod);
    trace(Number(row1[0].text)*((Number(row2[1].text)*Number(row3[2].text)) - (Number(row2[2].text)*Number(row3[1].text))));

}

Listeners to Buttons

1) Go Button

goButton.addEventListener(MouseEvent.CLICK, goButtonFunction);
goButton.addEventListener(MouseEvent.MOUSE_OVER, goButtonOverInfo);
goButton.addEventListener(MouseEvent.MOUSE_OUT, goButtonOutInfo);
function goButtonOutInfo(me:MouseEvent):void
{
    infoBar.text = "Info Bar";
}
function goButtonOverInfo(me:MouseEvent):void
{
    infoBar.text = "Click to execute and solve..";
}
function goButtonFunction(me:MouseEvent):void
{
    //No check conditions implied
    executeStatements();
        //for a better program implement a check condition

}

2) Clear Button

clearButton.addEventListener(MouseEvent.CLICK, clearButtonFunction);
clearButton.addEventListener(MouseEvent.MOUSE_OVER, clearButtonOverInfo);
clearButton.addEventListener(MouseEvent.MOUSE_OUT, clearButtonOutInfo);
function clearButtonOutInfo(me:MouseEvent):void
{
    infoBar.text = "Info Bar";
}
function clearButtonOverInfo(me:MouseEvent):void
{
    infoBar.text = "Click to clear all fields..";
}
function clearButtonFunction(me:MouseEvent):void
{
    var i:int;
    for(i = 0; i < 3; i++)
    {
        row1[i].text = "0";
        row2[i].text = "0";
        row3[i].text = "0";
        cc[i].text = "0";
    }
}

3) Help Button

helpButton.addEventListener(MouseEvent.CLICK, helpButtonFunction);
helpButton.addEventListener(MouseEvent.MOUSE_OVER, helpButtonOverInfo);
helpButton.addEventListener(MouseEvent.MOUSE_OUT, helpButtonOutInfo);
function helpButtonOutInfo(me:MouseEvent):void
{
    infoBar.text = "Info Bar";
}
function helpButtonOverInfo(me:MouseEvent):void
{
    infoBar.text = "Help Menu";
}
helptextmc.visible = false;
function helphide(me:MouseEvent):void
{
    helptextmc.visible = false;
    infoBar.text = "Info Text";
    helptextmc.removeEventListener(MouseEvent.CLICK, helphide);
}
function helpButtonFunction(me:MouseEvent):void
{
    helptextmc.visible = true;
    infoBar.text = "Help Menu";
    helptextmc.addEventListener(MouseEvent.CLICK, helphide);
}

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[Anonymous]

Originally posted by: k10blog... (code.google.com)@gmail.com

The wiki is for Repository: simpleequationsolver