Quality of Cursors created with java.awt.Toolkit(createCutsomCursor)

Hi -
I encountered a small problem while creating my own cursors for my Java application , I used the java.awt.Toolkit Objects createCustomCursor method to use a .GIF image as a cursor ... it worked but the quality of that cursor is horrible, the outline is rough ... I tried the same with a transparent PNG file afterwards unfortunately the same result , does anyone know why the quality is that bad or may this just be a problem of the choosen color pool ?
Help would be very appreciated since I have no clue how to use .cur files ... seems like a non supported format , in case someone knows how to import those it would help a lot if you would drop some lines of code.
I am currently using Java 2 SDK 1.4.0_01 , newest version.
Thanks for you time and thanks in advance for possible answers
-- Harald Scheckenbacher

I noticed this problem too. It looks like the routine is generating cursors which are scaled to to the maximum size of the system. On my win XP system,
Dimension dim = toolkit.getBestCursorSize(256, 256);
int maxColors = toolkit.getMaximumCursorColors();
return 32,32 and 256 respectively
If I provide a 16x16, all the pixels have been pixel doubled. If I specify a 32x32 image, then the cursor looks perfect. This looks like a bug for the java folks. Not sure why someone would ever want a cursor image to be pixel scaled.

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Use Graphics.getFontMetrics(font) instead.
After creation your frame and calling frame.show();
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As far as I can tell, this solution only allows compositing within the component that is currently being painted. What would be nice is if I could add a custom composite to say .. a JLabel, which paints based on the colors of the underlying pixel data (ie. from its parent container). In this way you could make a JLabel that always inverts the color of what's underneath.
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Greetings.
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How can I create a java.awt.Image from ...

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Hello All,
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Java.awt.Toolkit.getScreenSize()

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I'm a little confused here. I have these two lines in a program:
Toolkit tKit = Toolkit.getDefaultToolkit();
Dimension size = tKit.getScreenSize();
Reading the API, I notice that "getScreenSize()" is declared abstract.
I was under the impression that abstract methods need to be overridden and have no actual code.
if (that's correct)
return "What's up with that second line?";
else
return "What's the deal with abstract methods?";Thank you one and all.
Ciao for now.

I don't understand.
How does that tell me the "getScreenSize()" is
defined?
Do I just trust that the abstract method has been
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Hi everyone !
I have a problem with the export of iDVD, the result is jerky.
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I checked everything's in PAL (I'm in Europe)
I checked with another DVD
I checked the large selection in the navigator (720 * 540, H.264, 25 fps, 4Mbps)
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I had the same problem with jerky pans and dancing pixels particularly when using Ken Burns on stills.
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Weird problem with java.awt.Color

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D

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first, the previous poster was right - learn how these protocols are interacting before you try something like you want to do - and they're right, you can't use the AWT toolkit to find out ANYTHING about the client.
HTTP is stateless. so it's like this:
browser request -> your code on server, jsp completely exeutes, generates html -> html PLAIN old html goes to the browser. in that order. no exceptions. ergo, all your code has executed once the browser starts getting data (buffers on the server not withstanding).
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if the last 2 sentences don't make sense, re-read them until they do.
best of luck, sorry you're learing these frustrating lessons this way.

Eexception in java.awt.AWTError

Hi all,
I am starting with java in my Ubuntu box, and am faced with a problem.
Consider a simple program
import javax.swing.*;
import java.awt.*;
class helloSwing{
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Exception in thread "main" java.awt.AWTError: Cannot load AWT toolkit: gnu.java.awt.peer.gtk.GtkToolkit
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   at java.awt.EventQueue.invokeLater(java.lang.Runnable) (/usr/lib/libgcj.so.6.0.0)
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   at javax.swing.JRootPane.createGlassPane() (/usr/lib/libgcj.so.6.0.0)
   at javax.swing.JRootPane.getGlassPane() (/usr/lib/libgcj.so.6.0.0)
   at javax.swing.JRootPane.JRootPane() (/usr/lib/libgcj.so.6.0.0)
   at javax.swing.JFrame.createRootPane() (/usr/lib/libgcj.so.6.0.0)
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   at javax.swing.JFrame.frameInit() (/usr/lib/libgcj.so.6.0.0)
   at javax.swing.JFrame.JFrame() (/usr/lib/libgcj.so.6.0.0)
   at helloSwing.main(java.lang.String[]) (Unknown Source)
   at gnu.java.lang.MainThread.call_main() (/usr/lib/libgcj.so.6.0.0)
   at gnu.java.lang.MainThread.run() (/usr/lib/libgcj.so.6.0.0)
Caused by: java.lang.ClassNotFoundException: gnu.java.awt.peer.gtk.GtkToolkit not found in gnu.gcj.runtime.SystemClassLoader{urls=[file:./,file:./], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
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   at java.lang.ClassLoader.loadClass(java.lang.String, boolean) (/usr/lib/libgcj.so.6.0.0)
   at java.lang.ClassLoader.loadClass(java.lang.String) (/usr/lib/libgcj.so.6.0.0)
   at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib/libgcj.so.6.0.0)
   at java.lang.Class.forName(java.lang.String) (/usr/lib/libgcj.so.6.0.0)
   at java.awt.Toolkit.getDefaultToolkit() (/usr/lib/libgcj.so.6.0.0)
   ...17 moreIt appears whenever I'm importing some packages it is creating a problem.
With whatever little knowledge of Java I have, I suspect I have messed up in the enviornment variables somewhere.
So here are my
PATH=/usr/local/qt-x11-opensource-src-4.1.0/bin:/usr/local/bin:/usr/local/sbin:/sbin:/usr/sbin:/bin:/usr/bin:/usr/bin/X11:/usr/games:/home/neo/jdk1.3.1_17/bin/:/usr/sbin:/usr/java/jdk1.3.1_17/bin
JAVA_HOME=/usr/java/jdk1.3.1_17Can anybody suggest me an easy link where classpath is explained?
I'm am helpless, coz if this is not getting fixed I need to go back to Windoz ..
leaving Ubuntu, which would be really painful.
Please help. Thanks in Advance.

Cool, I glad it's working. And thanks for the kind words (although
your link sent me some sort of Introduction page, I eventually found
"Tatha's blog").
Now all I have to do is get my setup correct. Also 1.5, also Ubuntu.
I screwed something up when I installed Netbeans, and couldn't
understand how the Debian people have set things up. I just type the
executable's path at the command line (easy with *nix) or let Eclipse
just do the right thing.
Cheers,
Peter

Quality of Cursors created with java.awt.Toolkit(createCutsomCursor)

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