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<br><br><?xml version="1.0"
encoding="utf-8"?>
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
<fx:Script>
<![CDATA[
import
com.google.zxing.BarcodeFormat;
import
com.google.zxing.BinaryBitmap;
import
com.google.zxing.BufferedImageLuminanceSource;
import
com.google.zxing.DecodeHintType;
import
com.google.zxing.Result;
import
com.google.zxing.client.result.ParsedResult;
import
com.google.zxing.client.result.ResultParser;
import
com.google.zxing.common.BitMatrix;
import
com.google.zxing.common.ByteMatrix;
import
com.google.zxing.common.GlobalHistogramBinarizer;
import
com.google.zxing.common.flexdatatypes.HashTable;
import
com.google.zxing.qrcode.QRCodeReader;
import
com.google.zxing.qrcode.detector.Detector;
import
spark.events.ViewNavigatorEvent;
protected
var camera:Camera;
private
var videoDisplay:Video=new
Video(360, 360);
private
var qrReader:QRCodeReader;
private
var bmd:BitmapData;
private
var cameraStarted:Boolean = false;
protected
function button1_clickHandler(event:MouseEvent):void
{
if
(!cameraStarted) {
if
(Camera.isSupported)
{
camera=Camera.getCamera();
camera.setMode(360, 360, 24);
videoDisplay.x = 360;
sv.addChild(videoDisplay);
videoDisplay.attachCamera(camera);
videoDisplay.rotation=90;
qrReader=new
QRCodeReader;
btn.label = "Scan Now";
lbl.text = "";
cameraStarted = true;
}
else
{
lbl.text = "no camera found";
}
}
else
{
decodeSnapshot();
}
}
public function
decodeSnapshot():void
{
lbl.text="checking...";
bmd=new
BitmapData(300, 300);
bmd.draw(videoDisplay, null, null, null, null, true);
videoDisplay.cacheAsBitmap=true;
videoDisplay.cacheAsBitmapMatrix=new
Matrix;
decodeBitmapData(bmd, 300, 300);
bmd.dispose();
bmd=null;
System.gc();
}
public function
decodeBitmapData(bmpd:BitmapData, width:int, height:int):void
{
var
lsource:BufferedImageLuminanceSource=new
BufferedImageLuminanceSource(bmpd);
var
bitmap:BinaryBitmap=new
BinaryBitmap(new
GlobalHistogramBinarizer(lsource));
var
ht:HashTable=null;
ht=this.getAllHints();
var
res:Result=null;
try
{
res=qrReader.decode(bitmap, ht);
}
catch
(event:Error) {
}
if
(res == null) {
videoDisplay.clear();
lbl.text="nothing decoded";
}
else
{
var
parsedResult:ParsedResult=ResultParser.parseResult(res);
lbl.text=parsedResult.getDisplayResult();
sv.removeChild(videoDisplay);
cameraStarted = false;
btn.label = "Start Camera";
}
}
public function
getAllHints():HashTable
{
var
ht:HashTable=new
HashTable;
ht.Add(DecodeHintType.POSSIBLE_FORMATS, BarcodeFormat.QR_CODE);
return
ht;
}
]]>
</fx:Script>
<s:VGroup width="100%"
horizontalAlign="center"
id="vg">
<s:SpriteVisualElement id="sv"
width="360"
height="400"/>
<s:Label id="lbl"
text=""
/>
<s:Button id="btn"
label="Start Camera"
width="220"
height="93"
click="button1_clickHandler(event)"/>
</s:VGroup>
</s:View> |
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public function
decodeSnapshot():void
{ lbl.text="checking...";
bmd=new
BitmapData(300, 300);
bmd.draw(videoDisplay, null, null, null, null, true);
videoDisplay.cacheAsBitmap=true;
videoDisplay.cacheAsBitmapMatrix=new
Matrix;
decodeBitmapData(bmd, 300, 300);
bmd.dispose();
bmd=null;
System.gc();
} public function
decodeBitmapData(bmpd:BitmapData, width:int, height:int):void
{ var
lsource:BufferedImageLuminanceSource=new
BufferedImageLuminanceSource(bmpd);
var
bitmap:BinaryBitmap=new
BinaryBitmap(new
GlobalHistogramBinarizer(lsource));
var
ht:HashTable=null;
ht=this.getAllHints();
var
res:Result=null;
try
{
res=qrReader.decode(bitmap, ht);
}
catch
(event:Error) {
}
if
(res == null) {
videoDisplay.clear();
lbl.text="nothing decoded";
}
else
{
var
parsedResult:ParsedResult=ResultParser.parseResult(res);
lbl.text=parsedResult.getDisplayResult();
sv.removeChild(videoDisplay);
cameraStarted = false;
btn.label = "Start Camera";
}
} public function
getAllHints():HashTable
{ var
ht:HashTable=new
HashTable;
ht.Add(DecodeHintType.POSSIBLE_FORMATS, BarcodeFormat.QR_CODE);
return
ht;
} |
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if
(Camera.isSupported)
{ camera=Camera.getCamera();
camera.setMode(360, 360, 24);
videoDisplay.x = 360;
sv.addChild(videoDisplay);
videoDisplay.attachCamera(camera);
videoDisplay.rotation=90;
qrReader=new
QRCodeReader;
btn.label = "Scan Now";
lbl.text = "";
cameraStarted = true;
}else
{
lbl.text = "no camera found";
} |