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‎.gitignore‎

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.vscode/
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asconfig.json
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.code-workspace
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.actionScriptProperties
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.flexProperties
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.flexLibProperties
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.metadata/
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.settings/
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.project
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*.iml
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.idea/
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.as3proj
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.DS_Store
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Thumbs.db
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.swf
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.swc
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.swz

‎ASCIIArt/AsciiArtApp.fla‎

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‎ASCIIArt/AsciiArtApp.mxml‎

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<?xml version="1.0" encoding="utf-8"?>
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<mx:Application
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xmlns:mx="http://www.adobe.com/2006/mxml"
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xmlns="*"
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layout="vertical"
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paddingTop="0"
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paddingLeft="8"
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paddingRight="8"
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paddingBottom="0"
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creationComplete="initApp()">
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<mx:Script>
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<![CDATA[
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import com.example.programmingas3.asciiArt.ImageInfo;
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import com.example.programmingas3.asciiArt.AsciiArtBuilder;
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private var asciiArt:AsciiArtBuilder;
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private function initApp():void
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{
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asciiArt = new AsciiArtBuilder();
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asciiArt.addEventListener("ready", imageReady);
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}
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/**
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* Called when the AsciiArtBuilder has loaded the image data and is ready to
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* display an image.
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*/
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private function imageReady(event:Event):void
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{
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updatePreview();
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}
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/**
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* Called when the "next image" button is pressed.
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*/
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private function nextImage():void
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{
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// Advance to the next image
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asciiArt.next();
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// update the image preview
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updatePreview();
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}
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/**
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* Updates the image preview display, including title and image, using
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* the current image in the asciiArt object.
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*/
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private function updatePreview():void
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{
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var imageInfo:ImageInfo = asciiArt.currentImage.info;
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bmp.load(AsciiArtBuilder.IMAGE_PATH + imageInfo.fileName);
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sourceImage.title = imageInfo.title;
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asciiArtText.text = asciiArt.asciiArtText;
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}
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]]>
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</mx:Script>
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<mx:Label id="title" text="ASCII Art Example" fontSize="24" fontStyle="bold" />
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<mx:Label id="subtitle" text="From Programming ActionScript 3.0, Chapter 6: Working with strings" fontSize="12" />
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<mx:HBox width="100%" height="100%" horizontalAlign="center">
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<mx:Panel id="sourceImage" backgroundColor="#b7babc" borderAlpha="1" borderColor="#666" borderStyle="solid" borderThickness="1">
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<mx:Image width="400" id="bmp" height="300"/>
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<mx:ControlBar>
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<mx:Spacer width="290" height="15"/>
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<mx:Button label="Next Image" click="nextImage()"/>
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</mx:ControlBar>
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</mx:Panel>
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<mx:TextArea id="asciiArtText" width="510" height="450" fontFamily="_typewriter" fontSize="8"></mx:TextArea>
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</mx:HBox>
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</mx:Application>

‎ASCIIArt/com/example/programmingas3/asciiArt/AsciiArtBuilder.as‎

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package com.example.programmingas3.asciiArt
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{
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import flash.events.Event;
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import flash.events.EventDispatcher;
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import flash.net.URLLoader;
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import flash.net.URLRequest;
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import com.example.programmingas3.asciiArt.BitmapToAsciiConverter;
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import com.example.programmingas3.asciiArt.Image;
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import com.example.programmingas3.asciiArt.ImageInfo;
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/**
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* Provides appication-level functionality for the AsciiArt sample.
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*/
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public class AsciiArtBuilder extends EventDispatcher
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{
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// ------- Private vars -------
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private const DATA_TARGET:String = "txt/ImageData.txt";
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private var _imageInfoLoader:URLLoader;
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private var _imageStack:Array;
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private var _currentImageIndex:uint;
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// ------- Constructor -------
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public function AsciiArtBuilder()
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{
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_imageStack = new Array();
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var request:URLRequest = new URLRequest(DATA_TARGET);
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_imageInfoLoader = new URLLoader();
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_imageInfoLoader.addEventListener(Event.COMPLETE, imageInfoCompleteHandler);
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_imageInfoLoader.load(request);
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}
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// ------- Public Properties -------
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public static const IMAGE_PATH:String = "image/";
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public var asciiArtText:String = "";
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public function get currentImage():Image
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{
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return _imageStack[_currentImageIndex];
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}
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// ------- Event Handlers -------
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/**
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* Called when the image info text file is loaded.
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*/
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private function imageInfoCompleteHandler(event:Event):void
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{
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var allImageInfo:Array = parseImageInfo();
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buildImageStack(allImageInfo);
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}
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/**
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* Called when the first image is loaded.
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*/
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private function imageCompleteHandler(event:Event):void
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{
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// move to the first image in the stack
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next();
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// notify any listeners that the application has finished its initial loading
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var readyEvent:Event = new Event("ready");
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dispatchEvent(readyEvent);
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}
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// ------- Public Methods -------
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/**
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* Advances the image stack to the next image, and populates the asciiArtText property
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* with that image's ASCII Art representation.
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*/
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public function next():void
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{
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// Advance the "current image" index (or set it back to 0 if we're on the last one)
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_currentImageIndex++;
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if (_currentImageIndex == _imageStack.length)
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{
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_currentImageIndex = 0;
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}
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// generate the ASCII version of the new "current" image
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var imageConverter:BitmapToAsciiConverter = new BitmapToAsciiConverter(this.currentImage);
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this.asciiArtText = imageConverter.parseBitmapData();
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}
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// ------- Private Methods -------
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/**
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* Parses the contents of the loaded text file which contains information about the images
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* to load, and creates an Array of ImageInfo instances from that data.
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*
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* @return An Array of ImageInfo instances.
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*/
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private function parseImageInfo():Array
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{
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var result:Array = new Array();
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/* Parse the contents of the text file, and put its contents into an Array of ImageInfo
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* instances.
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* Each line of text contains info about one image, separated by tab (\t) characters,
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* in this order:
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* - file name
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* - title
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* - white threshold
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* - black threshold
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*
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* Loop through the individual lines in the text file.
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* Note that we skip the first line, since it only contains column headers.
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*/
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var lines:Array = _imageInfoLoader.data.split("\n");
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var numLines:uint = lines.length;
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for (var i:uint = 1; i < numLines; i++)
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{
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var imageInfoRaw:String = lines[i];
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// trim leading or trailing white space from the current line
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imageInfoRaw = imageInfoRaw.replace(/^ *(.*) *$/, "$1");
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if (imageInfoRaw.length > 0)
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{
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// create a new image info record and add it to the array of image info
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var imageInfo:ImageInfo = new ImageInfo();
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// split the current line into values (separated by tab (\t) characters)
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// and extract the individual properties
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var imageProperties:Array = imageInfoRaw.split("\t");
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imageInfo.fileName = imageProperties[0];
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imageInfo.title = normalizeTitle(imageProperties[1]);
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imageInfo.whiteThreshold = parseInt(imageProperties[2], 16);
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imageInfo.blackThreshold = parseInt(imageProperties[3], 16);
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result.push(imageInfo);
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}
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}
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return result;
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}
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/**
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* Capitalizes the first letter of each word in a String, unless the word
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* is one of the English words which are not commonly capitalized
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*
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* @param str The String to "normalize"
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* @return The String with the words capitalized
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*/
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private function normalizeTitle(title:String):String
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{
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var words:Array = title.split(" ");
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var len:uint = words.length;
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for(var i:uint; i < len; i++)
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{
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words[i] = capitalizeFirstLetter(words[i]);
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}
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return words.join(" ");
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}
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/**
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* Capitalizes the first letter of a single word, unless it's one of
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* a set of words which are normally not capitalized in English.
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*
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* @param word The word to capitalize
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* @return The capitalized word
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*/
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private function capitalizeFirstLetter(word:String):String
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{
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switch (word)
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{
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case "and":
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case "the":
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case "in":
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case "an":
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case "or":
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case "at":
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case "of":
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case "a":
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// don't do anything to these words
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break;
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default:
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// for any other word, capitalize the first character
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var firstLetter:String = word.substr(0, 1);
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firstLetter = firstLetter.toUpperCase();
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var otherLetters:String = word.substring(1);
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word = firstLetter + otherLetters;
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}
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return word;
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}
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/**
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* Using an Array of ImageInfo instances, populates the image stack with Image instances.
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*
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* @param imageInfo An array of ImageInfo instances, containing the data about the
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* image files to be loaded into the image stack.
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*/
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private function buildImageStack(imageInfo:Array):void
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{
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var image:Image;
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var oneImageInfo:ImageInfo;
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var listenerAdded:Boolean = false;
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var numImages:uint = imageInfo.length;
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for (var i:uint = 0; i < numImages; i++)
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{
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_currentImageIndex = 0;
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oneImageInfo = imageInfo[i];
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image = new Image(oneImageInfo);
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_imageStack.push(image);
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if(!listenerAdded)
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{
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image.addEventListener(Event.COMPLETE, imageCompleteHandler);
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listenerAdded = true;
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}
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image.load();
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}
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}
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}
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}

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