Hi all again. AIR 2.0 is launched. A much awaited version that I was waiting for last 2 years. Lots of good things but what I like most is NativeProcess (run executables within as native process). I had done lots of tricks to execute commandline executables. But now its much easier. I bet…this feature alone, will give Adobe AIR a new height.
I have done some work with ImageMagick.
Here is the MagickUtils class.
package pravin.magick
{
import flash.desktop.NativeProcess;
import flash.desktop.NativeProcessStartupInfo;
import flash.events.Event;
import flash.events.ProgressEvent;
import flash.events.IOErrorEvent;
import flash.events.NativeProcessExitEvent;
import flash.filesystem.File;
/**
* Image magick utility to use in Adobe AIR applications using NativeProcess.
* @author Pravin Ranjan
* @Date 16 June, 2010.
*/
public class MagickUtils
{
private var objWorkingFolder:File;
private var objOutFolder:File;
private var process:NativeProcess;
private var objConvertExe:File;
/*Explicitely declared constructor.*/
public function MagickUtils(objWorkingFolder:File,
objOutFolder:File, onOutputData:Function,
onErrorData:Function, onExit:Function, onIOError:Function)
{
this.objWorkingFolder = objWorkingFolder;
this.objOutFolder = objOutFolder;
objConvertExe = File.applicationDirectory.resolvePath("imagemagik/win/convert.exe");
process = new NativeProcess();
process.addEventListener(ProgressEvent.STANDARD_OUTPUT_DATA, onOutputData);
process.addEventListener(ProgressEvent.STANDARD_ERROR_DATA, onErrorData);
process.addEventListener(NativeProcessExitEvent.EXIT, onExit);
process.addEventListener(IOErrorEvent.STANDARD_OUTPUT_IO_ERROR, onIOError);
process.addEventListener(IOErrorEvent.STANDARD_ERROR_IO_ERROR, onIOError);
}
public function convertTo(strFromImage:String, strToImage:String):void
{
var objFile:File = objWorkingFolder.resolvePath(strFromImage);
strFromImage = objFile.nativePath;
strToImage = objOutFolder.nativePath + File.separator + strToImage;
trace("strFromImage: " + strFromImage);
trace("strToImage: " + strToImage);
var nativeProcessStartupInfo:NativeProcessStartupInfo = new NativeProcessStartupInfo();
nativeProcessStartupInfo.executable = objConvertExe;
var processArgs:Vector.<String> = new Vector.<String>();
processArgs.push(strFromImage);
processArgs.push(strToImage);
nativeProcessStartupInfo.arguments = processArgs;
process.start(nativeProcessStartupInfo);
}
}
}
AND here is main class…
package
{
import flash.display.Sprite;
import flash.desktop.NativeProcess;
import flash.desktop.NativeProcessStartupInfo;
import flash.events.Event;
import flash.events.ProgressEvent;
import flash.events.IOErrorEvent;
import flash.events.NativeProcessExitEvent;
import flash.filesystem.File;
import pravin.magick.MagickUtils;
public class NativeProcessExample extends Sprite
{
public var process:NativeProcess;
public function NativeProcessExample()
{
if(NativeProcess.isSupported)
{
setupAndLaunch();
}
else
{
trace("NativeProcess not supported.");
}
}
public function setupAndLaunch():void
{
var magik:MagickUtils = new MagickUtils(File.applicationDirectory, File.applicationDirectory, onOutputData, onErrorData, onExit, onIOError);
magik.convertTo("MyImage.jpg", "OutImage.png");
}
public function onOutputData(event:ProgressEvent):void
{
trace("Got: ", process.standardOutput.readUTFBytes(process.standardOutput.bytesAvailable));
}
public function onErrorData(event:ProgressEvent):void
{
trace("ERROR -", process.standardError.readUTFBytes(process.standardError.bytesAvailable));
}
public function onExit(event:NativeProcessExitEvent):void
{
trace("Process exited with ", event.exitCode);
}
public function onIOError(event:IOErrorEvent):void
{
trace(event.toString());
}
}
}
ImageMagick path need to be changed and wow. It works perfectly. My app executes convert.exe and my desired output is generated.
Wait a minute…
Now what you need. AIR 2.0 SDK, AIR 2.0 runtime, ImageMagick and flash CS4 (latest one).
Your app xml would look like this…
<?xml version =”1.0″ encoding=”utf-8″ ?><application xmlns=”http://ns.adobe.com/air/application/2.0″><id>com.adobe.example.nativeprocess</id><supportedProfiles>extendedDesktop</supportedProfiles><version>1.0</version><filename>nativeprocess</filename><description></description><!– To localize the description, use the following format for the description element.<description><text xml:lang=”en”>English App description goes here</text><text xml:lang=”fr”>French App description goes here</text><text xml:lang=”ja”>Japanese App description goes here</text></description>–><name>nativeprocess</name><!– To localize the name, use the following format for the name element.<name><text xml:lang=”en”>English App name goes here</text><text xml:lang=”fr”>French App name goes here</text><text xml:lang=”ja”>Japanese App name goes here</text></name>–><copyright></copyright><initialWindow><content>nativeprocess.swf</content><systemChrome>standard</systemChrome><transparent>false</transparent><visible>true</visible></initialWindow><icon></icon><customUpdateUI>false</customUpdateUI><allowBrowserInvocation>false</allowBrowserInvocation></application>
Now compile. If all well, you’ll get a converted image. You can also create preformatted commands in actionscript to perform actions.
Thats it for now. See you soon.
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