Imageicon created from byte array gives -1 height and -1 width...
Hi,
when I am trying to create an imageicon object from byte arrays the length and width of the object are coming to be -1.So I am unable to resize the image..
This is happening for only few images, most of them are working fine and I can resize it...
What possibly could be wrong??
ImageIcon imageIcon = new ImageIcon(pImageData) where pImageData is bytearray..
but I am getting imageIcon.getIconWidth()=-1
and
imageIcon.getIconHeight()=-1
Can anyone help???
es5f2000 wrote:
I'm not sure if this is related, but I believe that images which are not currently being rendered return -1, -1 as their size.It is not even correct, so I'm confident it is not related.
import java.awt.Image;
import javax.swing.ImageIcon;
import javax.imageio.ImageIO;
import java.net.URL;
class TestIconSize {
public static void main(String[] args) throws Exception {
Image image = ImageIO.read( new URL(
"http://forums.sun.com/im/silver-star.gif") );
ImageIcon imageIcon = new ImageIcon( image );
System.out.println( "Width: " + imageIcon.getIconWidth() );
System.out.println( "Height: " + imageIcon.getIconHeight() );
}Output.
andrew@pc1:/media/disk/projects/numbered/all$ java TestIconSize
Width: 16
Height: 16
andrew@pc1:/media/disk/projects/numbered/all$ The post after yours seems of even more dubious quality. For those (and other) reasons, I second Darryl's call for an SSCCE.
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* SimpleAudioRecorder.java
* This file is part of jsresources.org
* Copyright (c) 1999 - 2003 by Matthias Pfisterer
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
|<--- this code is formatted to fit into 80 columns --->|
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This, in turn, happens if the TargetDataLine is stopped or closed
(which implies stopping). (Also see the comment above.) Then,
the file is closed and 'AudioSystem.write()' returns.
public void run()
try
AudioSystem.write(
m_audioInputStream,
m_targetType,
m_outputFile);
catch (IOException e)
e.printStackTrace();
public static void main(String[] args)
if (args.length != 1 || args[0].equals("-h"))
printUsageAndExit();
/* We have made shure that there is only one command line
argument. This is taken as the filename of the soundfile
to store to.
String strFilename = args[0];
File outputFile = new File(strFilename);
/* For simplicity, the audio data format used for recording
is hardcoded here. We use PCM 44.1 kHz, 16 bit signed,
stereo.
AudioFormat audioFormat = new AudioFormat(
AudioFormat.Encoding.PCM_SIGNED,
44100.0F, 16, 2, 4, 44100.0F, false);
/* Now, we are trying to get a TargetDataLine. The
TargetDataLine is used later to read audio data from it.
If requesting the line was successful, we are opening
it (important!).
DataLine.Info info = new DataLine.Info(TargetDataLine.class, audioFormat);
TargetDataLine targetDataLine = null;
try
targetDataLine = (TargetDataLine) AudioSystem.getLine(info);
targetDataLine.open(audioFormat);
catch (LineUnavailableException e)
out("unable to get a recording line");
e.printStackTrace();
System.exit(1);
/* Again for simplicity, we've hardcoded the audio file
type, too.
AudioFileFormat.Type targetType = AudioFileFormat.Type.WAVE;
/* Now, we are creating an SimpleAudioRecorder object. It
contains the logic of starting and stopping the
recording, reading audio data from the TargetDataLine
and writing the data to a file.
SimpleAudioRecorder recorder = new SimpleAudioRecorder(
targetDataLine,
targetType,
outputFile);
/* We are waiting for the user to press ENTER to
start the recording. (You might find it
inconvenient if recording starts immediately.)
out("Press ENTER to start the recording.");
try
System.in.read();
catch (IOException e)
e.printStackTrace();
/* Here, the recording is actually started.
recorder.start();
out("Recording...");
/* And now, we are waiting again for the user to press ENTER,
this time to signal that the recording should be stopped.
out("Press ENTER to stop the recording.");
try
System.in.read();
catch (IOException e)
e.printStackTrace();
/* Here, the recording is actually stopped.
recorder.stopRecording();
out("Recording stopped.");
private static void printUsageAndExit()
out("SimpleAudioRecorder: usage:");
out("\tjava SimpleAudioRecorder -h");
out("\tjava SimpleAudioRecorder <audiofile>");
System.exit(0);
private static void out(String strMessage)
System.out.println(strMessage);
}Daniel
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