Ahmed/js/transformation

lab-greg-nicole-ahmed/.eslintignore

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+**/node_modules/*
+**/vendor/*
+**/*.min.js
+**/coverage/*
+**/build/*

lab-greg-nicole-ahmed/.eslintrc.json

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+{
+  "env": {
+    "browser": true,
+    "node": true,
+    "commonjs": true,
+    "jest": true,
+    "es6": true
+  },
+  "globals": {
+    "err": true,
+    "req": true,
+    "res": true,
+    "next": true
+  },
+  "extends": "eslint:recommended",
+  "parserOptions": {
+    "sourceType": "module"
+  },
+  "rules": {
+    "no-console": "off",
+    "indent": [ "error", 2 ],
+    "quotes": ["error", "single", { "allowTemplateLiterals": true }],
+    "comma-dangle": ["error", "always-multiline"],
+    "semi": [ "error", "always" ],
+    "linebreak-style": ["error", "unix"]
+  }
+}

lab-greg-nicole-ahmed/.gitignore

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+
+# Created by https://www.gitignore.io/api/node,linux,macos,windows
+
+### Linux ###
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### macOS ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+
+# End of https://www.gitignore.io/api/node,linux,macos,windows

lab-greg-nicole-ahmed/README.md

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+##Lab-Bitmap

lab-greg-nicole-ahmed/__test__/constructor.test.js

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+'use strict';

lab-greg-nicole-ahmed/__test__/cross-section.test.js

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+'use strict';
+
+const readFileHelper = require('../lib/cross-section.js');
+require('jest');
+
+describe('#cross-section', function() {
+  describe('with improper file paths', function() {
+    it('should return an error', function(done) {
+      readFileHelper([`${__dirname}/dont-exist.txt`], function(err) {
+        expect(err).toBeTruthy();
+        expect(err.code).toEqual('ENOENT');
+        done();
+      });
+    });
+  });
+  describe('with proper file paths', function() {
+    it('should return a proper file name', function() {
+      expect(err).toBe(false);
+      expect()
+    })
+    `${__dirname}/../data/pallette-bitmap.bmp`,
+     done();
+    });
+    it('should have the correct order of hex strings', done => {
+      var expectedResult = [];
+      readFileHelper(this.paths, function(err, data) {
+        console.log('data array', data);
+        expect(err).toEqual(null);
+        expect(data[0]).toEqual(expectedResult[0]);
+        expect(data[0]).toEqual(expectedResult[1]);
+        expect(data[0]).toEqual(expectedResult[2]);
+        done();
+      });
+    });
+  });
+});

lab-greg-nicole-ahmed/__test__/read-write-file.js

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+'use strict';

lab-greg-nicole-ahmed/index.js

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+'use strict';
+
+const fileReader = require('./lib/read-write-file.js');
+const allwhite = require('./lib/all-black.js');
+const blueStripe = require('./lib/blue-stripe.js');
+const neww = require('./lib/neww.js');
+
+fileReader('palette-bitmap.bmp', 'new.bmp', allwhite);
+fileReader('palette-bitmap.bmp', 'blueStripe.bmp',blueStripe);
+fileReader('palette-bitmap.bmp', 'neww.bmp', neww);

lab-greg-nicole-ahmed/lib/all-black.js

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+'use strict';
+
+module.exports = function(bitmapObj) {
+  let colorString = '';
+  let colorPalette = '';
+  let numOfZeros = bitmapObj.pixelArray.length * 8;
+
+  for(var i = 0; i < numOfZeros; i++) {
+    colorString += 'f';
+  }
+
+  for(var j = 0; j < bitmapObj.colorPalette.length; j++) {
+    colorPalette += 'f';
+  }
+
+  return {colorString: colorString, colorPalette: colorPalette};
+}

lab-greg-nicole-ahmed/lib/blue-stripe.js

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+'use strict';
+
+module.exports = function(bitmapObj){
+    let middleX = Math.floor(bitmapObj.width/2);
+    console.log('pixel array length', bitmapObj.pixelArray.length);
+    for(var i = middleX; i < bitmapObj.pixelArray.length; i += bitmapObj.width){
+      bitmapObj.pixelArray[i] = '1c';
+      bitmapObj.pixelArray[i+1] = '1c';
+      bitmapObj.pixelArray[i+2] = '1c';
+      bitmapObj.pixelArray[i-1] = '1c';
+      bitmapObj.pixelArray[i-2] = '1c';
+    }
+
+    let crossStart = ((Math.floor(bitmapObj.height/2) * bitmapObj.width) - 200);
+    let crossEnd = ((Math.floor(bitmapObj.height/2) * bitmapObj.width) + 200);
+
+    for(var j = crossStart; j < crossEnd; j++) {
+      bitmapObj.pixelArray[j] = '1c';
+    }
+
+    for(var k = 0; k < bitmapObj.pixelArray.length - 3; k+= 101) {
+      bitmapObj.pixelArray[k] = '3f';
+      bitmapObj.pixelArray[k+1] = '3f';
+      bitmapObj.pixelArray[k+2] = '3f';
+      bitmapObj.pixelArray[k+3] = '3f';
+    }
+
+    for(var l = 99; l < bitmapObj.pixelArray.length; l+= 99) {
+      bitmapObj.pixelArray[l] = '3f';
+      bitmapObj.pixelArray[l-1] = '3f';
+      bitmapObj.pixelArray[l-2] = '3f';
+      bitmapObj.pixelArray[l-3] = '3f';
+
+    }
+
+    return {colorString: bitmapObj.pixelArray.join(''), colorPalette: bitmapObj.colorPalette}
+
+}

lab-greg-nicole-ahmed/lib/constructor.js

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+'use strict';
+
+module.exports = function(data) {
+  function Bitmap (data) {
+    this.size = data.readInt32LE(34);
+    this.width = data.readInt32LE(18);
+    this.height = data.readInt32LE(22);
+    this.pixelAddress = data.readInt32LE(10);
+    this.pixels = data.toString('hex', this.pixelAddress);
+    this.header = data.slice(0, 54).toString('hex');
+    this.colorPalette = data.toString('hex', 54, this.pixelAddress);
+    this.colorPaletteArray = this.colorPalette.match((/.{1,8}/g));
+    //console.log('colorPalette:', this.colorPaletteArray);
+    this.pixelArray = this.pixels.match((/.{1,2}/g));
+    //console.log('colorPalette:', this.pixelArray);
+    this.end = data.slice(this.pixelAddress + this.size, data.length).toString('hex');
+  }
+
+  return new Bitmap(data);
+}

lab-greg-nicole-ahmed/lib/neww.js

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+'use strict';
+
+module.exports = function(bitmapObj){
+
+    for (var i = bitmapObj.pixelArray.length - 1; i > 0; i--) {
+        var j = Math.floor(Math.random() * (i + 1));
+        var temp = bitmapObj.pixelArray[i];
+        bitmapObj.pixelArray[i] = bitmapObj.pixelArray[j];
+        bitmapObj.pixelArray[j] = temp;
+    }
+    console.log('new pixel Array', bitmapObj.pixelArray);
+    return {colorString: bitmapObj.pixelArray.join(''), colorPalette: bitmapObj.colorPalette}
+}

lab-greg-nicole-ahmed/lib/read-write-file.js

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+'use strict';
+
+const constructor = require('./constructor.js');
+const allwhite = require('./all-black.js');
+const fs = require('fs');
+const path = require('path');
+
+
+const readFileHelper = module.exports = function(file, newFile, callback) {
+  let filePathRead = path.join(__dirname, '..', 'data', file);
+
+  // console.log('path to read from', filePathRead);
+
+  // console.log('file path we sent', `${file}`);
+  let filePathWrite = `${__dirname}/../data/${newFile}`;
+
+  fs.readFile(filePathRead, function(err, data){
+    // if(err)
+    // console.log('this is our file from the fileRead', data);
+    let bitMap = constructor(data);
+    // console.log('this is our callback', callback);
+    let newBitmapObj = callback(bitMap);
+    // RECEIVES STRINGS!!! v v v 
+    let newBitmapTotal = bitMap.header + newBitmapObj.colorPalette + newBitmapObj.colorString + bitMap.end;
+    let newBitmap = Buffer.from(newBitmapTotal, 'hex');
+    // console.log(newBitmap.toString('hex'));
+    // console.log('new bitmap buffer', newBitmap);
+    fs.writeFile(filePathWrite, newBitmap, 'hex', function(err, data){
+      // if(err)
+      // console.log('file successfully created');
+
+    });
+  });
+
+
+};