对图片进行编码

单飞 — Tue, 28 Apr 2009 03:29:00 GMT

xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
    <mx:Script>

            import mx.graphics.codec.PNGEncoder;
            import mx.graphics.codec.JPEGEncoder;
            import mx.utils.Base64Encoder;
            private var encoder:Base64Encoder;
            private var encodeTarget:ByteArray;

            private function loadImage():void
            {
                indentityImg.load(imageSrc.text);
            }

            private function encodeImage():void
            {
                var bmp:Bitmap = indentityImg.content as Bitmap;
                var bmpData:BitmapData = bmp.bitmapData;
                switch("jpg"){
                    case "bmp":
                        encodeTarget = bmpData.getPixels(bmpData.rect);
                        break;
                    case "jpg":
                        var jpg:JPEGEncoder = new JPEGEncoder(100);
                        encodeTarget = jpg.encode(bmpData);
                        break;
                    case "png":
                        var png:PNGEncoder = new PNGEncoder();
                        encodeTarget = png.encode(bmpData);
                        break;
                }

                encodeTarget.position = 0;

                encoder = new Base64Encoder();
                encoder.insertNewLines = false;
                encoder.reset();
                encoder.encodeBytes(encodeTarget,0,encodeTarget.length);
                resultTxt.text = encoder.flush();
            }
        ]]>
    mx:Script>
    <mx:Image id="indentityImg" x="10" y="64" width="187" height="112" source="image2.jpg"/>
    <mx:Button x="458" y="5" label="fetch" click="loadImage()"/>
    <mx:Button x="260" y="169" label="encode" click="encodeImage()"/>
    <mx:TextArea x="10" y="210" width="317" height="158" id="resultTxt" wordWrap="true" editable="false"/>
    <mx:Label x="10" y="184" text="result" width="115"/>
    <mx:TextInput id="imageSrc" x="10" y="5" width="425" editable="true">
        <mx:text>http://avatar.profile.csdn.net/7/B/4/1_remote_roamer.jpgmx:text>
    mx:TextInput>

mx:Application>

单飞 2009-04-28 11:29 发表评论

BlogJava-9910-随笔分类-flex

对图片进行编码