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      1 /*jslint node:true, vars:true, bitwise:true, unparam:true */
      2 /*jshint unused:true */
      3 
      4 /*
      5  * Author: Jon Trulson <jtrulson (at) ics.com>
      6  * Copyright (c) 2015 Intel Corporation.
      7  *
      8  * Author: Tyler Gibson <tgibson (at) microsoft.com>
      9  * Copyright (c) 2015 Microsoft Corporation.
     10  *
     11  * Permission is hereby granted, free of charge, to any person obtaining
     12  * a copy of this software and associated documentation files (the
     13  * "Software"), to deal in the Software without restriction, including
     14  * without limitation the rights to use, copy, modify, merge, publish,
     15  * distribute, sublicense, and/or sell copies of the Software, and to
     16  * permit persons to whom the Software is furnished to do so, subject to
     17  * the following conditions:
     18  *
     19  * The above copyright notice and this permission notice shall be
     20  * included in all copies or substantial portions of the Software.
     21  *
     22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     23  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     24  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     25  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
     26  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     27  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     28  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     29  */
     30 
     31 var lcdObj = require('jsupm_i2clcd');
     32 var oled = new lcdObj.EBOLED();
     33 
     34 var sample = 0;
     35 var samples = 13;
     36 
     37 function exit()
     38 {
     39   oled = null;
     40   lcdObj.cleanUp();
     41   lcdObj = null;
     42   process.exit(0);
     43 }
     44 
     45 setInterval( function()
     46 {
     47   if(sample>samples)
     48   {
     49     exit();
     50   }
     51   oled.clearScreenBuffer();
     52   runSample(sample++);
     53   oled.refresh();
     54 }, 1500);
     55 
     56 function runSample(sample)
     57 {
     58   switch(sample) {
     59     case 0:
     60       // x/y coords are 0 based, using 1 here for padding.
     61       oled.setCursor(1,1);
     62       // nowrap = 0, wrapping = 1
     63       oled.setTextWrap(1);
     64       oled.write("HELLO WORLD! Mixed with #123 and y's, g's and q's.");
     65       break;
     66     case 1:
     67       oled.setCursor(12, 1);
     68       //multiply text size, only integers
     69       oled.setTextSize(3);
     70       oled.write("BOO!");
     71       oled.setTextSize(1);
     72       break;
     73     case 2:
     74       oled.drawRectangleFilled(0,0,48,9);
     75       oled.setCursor(1,1);
     76       // 0=Black, 1=White, 2=Xor (Toggle)
     77       oled.setTextColor(2);
     78       oled.write("Cutout");
     79       break;
     80     case 3:
     81       var total = Math.random()*100;
     82       for(var stars=0; stars<total; stars++ )
     83         oled.drawPixel(Math.floor(Math.random()*63), Math.floor(Math.random()*47), 1);
     84       break;
     85     case 4:
     86       for(var burst=0; burst<12; burst++)
     87         oled.drawLine(31, 24, Math.floor(Math.random()*63), Math.floor(Math.random()*47), 1);
     88       break;
     89     case 5:
     90       var lastPeak = 24;
     91       for(var peak=0; peak < 64; peak++)
     92       {
     93         var thisPeak = Math.abs(lastPeak + Math.floor(Math.random()*(-6) + Math.random()*6));
     94         oled.drawLine(peak, thisPeak, peak, 47, 1);
     95         lastPeak = thisPeak;
     96       }
     97       break;
     98     case 6:
     99       for(var y=0; y<47; y++)
    100       {
    101         oled.drawLineHorizontal(0,y+1,63,2);
    102         oled.refresh();
    103         oled.drawLineHorizontal(0,y,63,2);
    104       }
    105       break;
    106     case 7:
    107       var eqbarHeights = [ Math.floor(Math.random()*32),
    108                            Math.floor(Math.random()*32),
    109                            Math.floor(Math.random()*32),
    110                            Math.floor(Math.random()*32),
    111                            Math.floor(Math.random()*32),
    112                            Math.floor(Math.random()*32),
    113                            Math.floor(Math.random()*32) ];
    114       var begin = Date.now();
    115       while(Date.now()-begin < 2000)
    116       {
    117         oled.clearScreenBuffer();
    118         for(var eqbar=0; eqbar<7; eqbar++)
    119         {
    120           oled.drawRectangleFilled(eqbar*9, 49 - eqbarHeights[eqbar], 8, eqbarHeights[eqbar], 1);
    121           eqbarHeights[eqbar] = eqbarHeights[eqbar] + Math.random()*(-2) + Math.random()*2;
    122           if(eqbarHeights[eqbar]<0)
    123             eqbarHeights[eqbar] = 1;
    124         }
    125         oled.refresh();
    126       }
    127       oled.clear();
    128       break;
    129     case 8:
    130       oled.drawRoundedRectangle(8, 8, 48, 16, 4, 1);
    131       oled.setCursor(12, 16);
    132       oled.write("Cancel");
    133       break;
    134     case 9:
    135       oled.drawTriangle(2, 2, 52, 7, 17, 37, 1);
    136       break;
    137     case 10:
    138       oled.drawTriangleFilled(2, 2, 52, 7, 17, 37, 1);
    139       break;
    140     case 11:
    141       oled.drawCircle(32, 24, 14, 1);
    142       break;
    143     case 12:
    144       oled.drawCircleFilled(32, 24, 14, 1);
    145       break;
    146     case 13:
    147       oled.fillScreen(1);
    148       break;
    149   }
    150 }
    151