Background « Component « Java Swing Q&A





1. Looking for a Swing Run-In-Background GUI library    stackoverflow.com

Most modern apps provide an interactive way to push a long running operation onto a background queue. I am developing a swing application and I have implemented a simple "framework" to ...

2. Java- Changing swing background colour?    stackoverflow.com

Ok so ive got a bitchin swing app going using the "System" look and feel. Now, I want to change the background colour of the main panels to black. Too easy right?

UIManager.put("Panel.background", ...

3. How can I change te background color of a Java applet?    stackoverflow.com

Greetings, So far, my code compiles, but it changes white to black and then don't want to change. Supposely it should change from red->orange->green->pink->blue->black..

public void init() {
    c=new Color[] {Color.red, ...

4. Java Swing Fade Out Background    stackoverflow.com

I have a Swing application and I'm trying to fade out the main application and show a window saying an operation is in progress (this is for long running operations that ...

5. Perform action in background at program start    stackoverflow.com

How can I perform action in background at program start? I would expect some kind of onLoad event for this purpose. Just to be clear: Load ui. Do some stuff and ...

6. Swing Timer in Conjunction with Possible Long-running Background Task    stackoverflow.com

I need to perform a task repeatedly that affects both GUI-related and non GUI-related objects. One caveat is that no action should performed if the previous task had not completed when ...

7. Java swing how to set application background dynamically    stackoverflow.com

I would like to know normally how they let a user choose the background color? For example, user chooses the background color to be red color, next time when the user ...

8. Initializing Java Swing in the background    stackoverflow.com

I have a question regarding quick initialization of swing components. At the start of my swing application I have a window that pops up with buttons that allow the user to ...

9. Background activity cursor in Swing    stackoverflow.com

how can I set the Cursor on a Component to a "background activity" cursor. Like the one in Windows with the arrow and the small hourglass. All I find ist the Cursor.WAIT_CURSOR, ...





10. use Java Swing worker as a singleton to backup application data in the background    stackoverflow.com

I plan to use Java SwingWorker as a singleton to backup application data in the background periodically(perhaps in combination with a Swing timer or java.util.Timer)
is such a strategy sound? ...

11. Applet Background Flashing?    stackoverflow.com

I have made a simple test applet that has a red background and a few buttons. When I run the applet (its at http://nuevawave.org/sandbox/JavaGallery/GUIApplet.html) the buttons show up, but ...

12. JComponent background color on Mac OS    forums.netbeans.org

Hi, I'm developing a Netbeans Platform Application on Mac OS. Inside a TopComponent, I'm adding various JComponents as children. I used the properties editor to set the background color of these ...

13. How to set transparent color(as background) to PictureBox control in VJ++    coderanch.com

Hi All I am facing one problem in my project. I have a container(say suppose an VJ form)I am placing images on that form. How i am doing is I am placing the bitmap object on Picturebox control after that i am adding that control to form. Now I should be able to move(overlap or resize)the images on that form. I ...

14. Background Color changing    coderanch.com

Thanks anyways. I've seen it done. and I know the values for white and black, but I'm not sure how to iterate through them to go from white to black and vice versa. I have no interest on hitting all the colors on the spectrum, just white to black and black to white, but in a way that they fade into ...

16. TableRow background color problem    coderanch.com





17. background?    coderanch.com

18. background printing    coderanch.com

19. Getting the background color of an ImageIcon    coderanch.com

Since an ImageIcon is created from Image data (i.e gif, jpeg) I assume the background you are trying to determine is part of the image. The only way I know to determine the bg would be to use a PixelGrabber for the image and determine its color model. However to do this you would have to either 1) know the x,y ...

20. how to use hex to set background color?    coderanch.com

21. Background color of viewport doesn't work    coderanch.com

Hi there, I have tried setting the background color of a scroll pane's viewport, but this doesn't work.. The unused viewport remains grey. Can anyone tell what i'm doing wrong? Thanks in advance for any help. Here's my code. public class Frames extends JPanel { private JScrollPane topLeft; private JScrollPane topRight; private JScrollPane bottomLeft; private JScrollPane bottomRight; /** * Class constructor. ...

22. How to make background a picture?    coderanch.com

Here's a demo. You can set the layout and add your components either inside the (BackgroundPicturePanel) class or with the reference when you instantiate the class BackgroundPicturPanel bpp = new BackgroundPicturePanel(); bpp.setLayout(... bpp.add(... bpp.setBorder(... f.getContentPane().add(bpp); If you use this as a content pane (f.setContentPane(bpp)) be sure to set it opaque (bpp.setOpaque(true) or setOpaque(true) inside class constructor) to avoid problems with LookAndFeels ...

23. Applet background color    coderanch.com

I have 2 classes - MyThread and MyThread_1. =================== MyThread =================== import java.applet.*; import java.awt.*; import java.util.Date; public class MyThread extends Applet implements Runnable { Color colorArray[] = {Color.red, Color.blue, Color.cyan, Color.black,Color.white}; int counter = 0; int clockCtr, backgroundCtr= 0; //used for debugging Thread t = new Thread(this); public void init() { setBackground(Color.red); t.start(); while(true) { System.out.println("clock.... " + ++clockCtr); showStatus((new ...

26. How do I set the background to the default?    coderanch.com

I have some JComponents, mostly JTextFields, that I need to highlight when the user is in the field. I do this by changing the background to a color of their choosing. Problem comes in trying to set the background back to it's default when the user leaves that field. I started simply holding the original background in a variable and setting ...

27. Getting audio to play in the background of my GUI.    coderanch.com

Hi I'd like to be able to play audio in the background of my GUI using a JFRAME, is this possible? I just want to load one audio file and have another play upon certain actions. I don't want audio to be selectable or anything I just want it to play as the GUI runs. If anyone could start me off ...

28. background problem    coderanch.com

29. Swing Background Picture    coderanch.com

30. Changing an applet background color    coderanch.com

32. My .PNG background will not export ||THIS HAS BEEN RESOLVED!!! THANKS!!||    coderanch.com

Hi, The title says it all. I have written a calculator that runs fine in eclipse, in fact here is a screen showing what it looks like: The problem is that when I export the code to a .jar the .jar will not run. It acts like a non gui export (ie you write console code, export it, and it will ...

33. Grey background in screen capture    coderanch.com

Hello, I have extended JToolTip to make fade-in effect for it, well it works nice but when tooltip is painted partly outside of main JFrame it uses HeavyWeightWindow created in javax.swing.Popup. And for that I have to get screen capture from region where this tooltip component lies. I dont know what it is but when I create screen capture from exactly ...

34. Converting PNG/GIF to JPEG: alpha channel gets black background color    coderanch.com

I am afraid in don't quite understand how imaging in Java works ... I am storing thumbnails of image files in a database. The thumbnails are always in JPEG format. When i want to store images with transparency (GIFs or PNGs) the "background color" of the alpha channel is always rendered black in the JPEG. I'd like it to become white, ...

35. Running java in the background    coderanch.com

Minimizing to the system tray is done by adding an icon to the system tray, then calling setVisible(false) on your frame to hide it from the task bar. You may want to keep normal minimizing in there for the effect. The procedure is then like this (using a WindowListener): public void windowIconified(WindowEvent e) { // add to the system tray if ...

36. background on Java Desktop Application    coderanch.com

I have created a Java Desktop Application with NetBeans 6.9 IDE. The application consists of several panels. Three of these panels have simple rectangles drawn on them with different fill colors. The other panels have a jFreeChart drawn on them. What I would like to do is to place a background image behind everything let all of the panels have transparent ...

37. Background color change help    coderanch.com

Writing a guessing game program. The user is to guess a number between 1 - 1000. Every time the user guesses too low, the background color of the JFrame is to change to blue, if the user guesses too high, it changes to red. I cannot get the background color to change at all. Everything else seems to running ok with ...

39. Java swing background execution    coderanch.com

Hi, I am trying to make a progress monitor bar for a long execution. The program is basically trying to scan the local network (which takes about two minutes). I have a result class which prepares a JPanel that can be placed in the UI with the results. I want to have a neat progress bar for the whole process. I ...

40. background bleed-through when using getInsets.    coderanch.com

Hi all, I'm new to Java programming, and I'm Eclipse Indigo on a WinXP machine. I'm reading a beginner's book and learning to use the Swing classes. I notice that when I use getInsets on a JFrame subclass that the border region somehow contains the background of my desktop behind it. That border region is not actively transparent because I can ...

41. JComponent gradient background    java-forums.org

42. transparent background charts and swing...    jfree.org

JFree folks, does anyone have any experience w/ decent performance of transparent background in swing? We're using transparent background jfree charts and they are great w/ a static image as the background. When we extend that to the full swing UI w/ tabbed panes, splitters and such the performance is horrendous, using setBackground(new Color(255,255,255,0)) the performance is terrible. It seem that ...

43. Java swing background?    forums.oracle.com

44. Background colour on GUI's    forums.oracle.com