WeiWeiXinNet/Games/game8/js/rpncalc.js

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/*jslint -W033, -W061, browser:true, devel:true, white:true, vars:true, eqeq:true */
/*global $:false, intel:false, xpnt:false*/
/*
 * Copyright (c) 2012, Intel Corporation. All rights reserved.
 * File revision: 04 October 2012
 * Please see http://software.intel.com/html5/license/samples 
 * and the included README.md file for license terms and conditions.
 */
var calc;
var CLEAR = "0.00";
var ZERODOT = "0.";
var STACKSIZE = 3;
// Button Strings - for clarity, some functions are
// associated with const global vars
// y is top of stack, x is currently displayed number
var FN = "Fn"; // Fn button
var ROLLUP = "R↑" // Roll through stack up
var ROLLDN = "R↓" // Roll through stack down

function NumButton(n) {
    this.text = "<span class='btnNumText btnFont'>" + n + "</span>"
    this.fcn = function() {
        calc.display.num(n)
    }
}
//Optional second arg, in case you want to format op,
//i.e. &ndash in place of '-'

function BinopButton(o, plain) {
    this.text = "<span class='btnMathText btnFont'>" + o + "</span>"
    if (plain) {
        o = plain
    }
    this.fcn = function() {
        calc.keypad.binaryOp(o)
    }
}

function make_layouts(pad, display, stack) {
    //Button Layouts
    // Chrome (webkit) doesn't support mathml
    //  [ {text:"<math><msqrt><mi>x</mi></msqrt></math>", fcn: function () { pad.unaryOp(Math.sqrt)}},
    //  [ {text:"sqrt", fcn: function () { pad.unaryOp(Math.sqrt)}},
    //  [ {text:"&radic;<span style='text-decoration:overline;'>x</span>", fcn: function () { pad.unaryOp(Math.sqrt)}},
    //  [ {text:"&radic;<span style='margin-left:-0.08em; font-size:80%; border-top:0.25ex solid;'>x</span>", fcn: function () { pad.unaryOp(Math.sqrt)}},
    var oneLayout = [
        [{
            text: "<span class='btnThemeText btnFont'>theme</span>",
            fcn: pad.toggleTheme
        }, {
            text: "<span class='btnFnText btnFont'>R&uarr;</span>",
            fcn: function() {
                stack.rollup(display)
            }
        }, {
            text: "<span class='btnFnText btnFont'>R&darr;</span>",
            fcn: function() {
                stack.rolldown(display)
            }
        }, {