Hi. I'm using Flash CS6 to create an AIR app that loads an image from the user's computer and then does a pixel count using its bitmap data.
MyImg is a class that represents the loaded image.
package com.utils{
import flash.display.Loader;
public class MyImg extends Loader {
public function MyImg ():void {
}
}
}
In my main class I handle the file selection and loading.
private var _myImage:MyImg = new MyImg();
private var _file:FileReference;
private var _fileTypes:FileFilter = new FileFilter("Imagens: (*.jpeg, *.jpg, *.gif, *.png)", "*.jpeg; *.jpg; *.gif; *.png");
When a "load image" button on the stage is clicked, it calls loadMyImg().
public function loadMyImg($e:MouseEvent):void {
chooseFile();
}
Then the user chooses the file he wants to load.
private function chooseFile():void {
_file = new FileReference();
_file.addEventListener(Event.SELECT, fileSelected);
_file.browse([_fileTypes]);
}
Once the file is selected, it's loaded as a byte array.
private function fileSelected($e:Event):void {
_file.removeEventListener(Event.SELECT, fileSelected);
_file.addEventListener(Event.COMPLETE, fileLoaded);
_file.load();
}
When it finishes loading it loads the byte array into _myImage.
private function fileLoaded($e:Event):void {
_file.removeEventListener(Event.COMPLETE, fileLoaded);
_myImage.contentLoaderInfo.addEventListener(Event.COMPLETE, dataReady);
_myImage.loadBytes(_file.data);
}
Once that is done I try to use the _myImage's BitmapData, but can't...
private function dataReady($e:Event):void {
$e.target.loader.contentLoaderInfo.removeEventListener(Event.COMPLETE, dataReady);
trace ($e.target + $e.target.content + $e.target.content.name + $e.target.content.bitmapData); //returns [object LoaderInfo] [object Bitmap] instance 155 [object BitmapData]
trace (_myImage + _myImage.content + _myImage.content.name + _myImage.contentLoaderInfo + _myImage.contentLoaderInfo.content.name); //returns [object MyImg] [object Bitmap] instance 155 [object LoaderInfo] instance 155
trace (_myImage.content.bitmapData) //compiler error: 1119 Access of possibly undefined property bitmapData through a reference with static type flash.flashDisplay:DisplayObject.
trace (_myImage.contentLoaderInfo.content.bitmapData) //same error
}
I don't understand what I'm doing wrong. The instances have the same name, so they must be the same. They both trace as bitmaps, yet when I don't access it from the event I don't get the bitmapData. Can anyone tell me what I'm doing wrong? I need to use the bitmapData from inside the MyImg class. I guess I could create some BitmapData variable in the class and give it the value of $e.target.content.bitmapData, but I'd still like to know why it can't be simpler.
Thanks!
1 Correct answer
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