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  • Background settings for a JDesktopPane

    - by EricR
    I'm using a self-made DesktopPaneUI for a JDesktopPane, I've written the proper methods for the class, and I'm running into trouble. When I resize the JDesktopPane, the background image doesn't resize with the frame. The image appears to be clipped at the size it was when the window initially opened. I'm giving it an image larger than the window, and I'm still having this problem. Here's my method call inside the constructor of my desktopUI class. super(); this.background = javax.imageio.ImageIO.read(new File(fileName)); Is there a way I can change my main class where I set the UI, or the myDesktopPaneUI class such that the background still fills the window when the JDesktopPane changes size? setUI(new myDesktopPaneUI("media/bg.jpg"));

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  • getting JSlider bar to move on mouse click event

    - by Aly
    Hi, I have a JSlider which shows bet sizes (for a poker game) I am trying to achieve the effect that when a mouse click occurs the slider jumps forward by a bet amount (i.e. a big blind amount) rather than just incrementing by one. If the mouse click happens to the left of the bar i want it to decrement by a fixed amount else increment. I looked into attaching a mouse listener, but do not know how I can use the event to find out on what side of the bar the mouse was clicked. Any ideas?

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  • JLabel not greyed out when disabled, when HTML text displayed

    - by bguiz
    How do I get a JLabel displaying a HTML string to appear greyed out (which is the behaviour of JLabels that don't display HTML text)? Is there another way than actually changing the colour myself by modifying the foreground property? JLabel label1 = new JLabel("Normal text"); JLabel label2 = new JLabel("<html>HTML <b>text</b>"); // Both labels are now black in colour label1.setEnabled(false); label2.setEnabled(false); // label1 is greyed out, label2 is still black in colour Thank you very much for all of your responses. From what I gather, it seems that Java doesn't support automatic greying out of JLabels when they use HTML text. Suraj's solution has come closest to the fix considering the limitations. I have however, tried a different out-of-the box approach, where I have put the HTML text JLabels inside of an inner JPanel and did this: mInnerPanel.setEnabled(shouldShow); //shouldShow is a boolean value Which hasn't worked. Any suggestions for this way? EDIT: Added implemented solution.

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  • how to create internal frame in netbeans platform?

    - by joseph
    I created class NewProject extends JInternalFrame. Then I create New...Action named "NEW", localised in File menu. I put code NewProject p = new NewProject(); p.setVisible(true); to the ActionPerformed method of the action. But when I run the module and click "NEW" in file menu, nothing appears. Where can be problem?

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  • disable scrolling to cell in focus

    - by Victor
    I have a jtable inside of a scrollpane. how can i stop the scrollpane from scrolling up or down when a cell that is partly out of view gains focus? the problem is i am setting the cells to editable when the user mouses over them, so when you mouse over a cell that's partly out of view, the view changes suddenly. I don't like this behaviour. any ideas on how to change it?

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  • Setting fonts in a JTextArea

    - by vuj
    I've got a JTextArea which has the following text "Text1 Text2 Text3". Is there a way I can make all of them different fonts? E.g. "Text1" is bold, "Text2" is italic and "Text3" is normal? I know I can create a Font object, however I can only apply it the JTextArea object. Thanks.

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  • how to reuse the area in a container when any component is removed from it?

    - by vybhav
    hi! i hav a panel and i m trying to remove labels from it which were added to it during run-time. but when labels are removed succesfully i m not able to use the space,left by that label,again to add any label to it. thanks in anticipation of the solution. here is the relevant code snippet: to add label to the panel: JLabel jl = new JLabel(); jl.setOpaque(true); jl.setIcon(new ImageIcon("D:/Project/router2.jpg")); jl.setBounds(x, y,jl.getPreferredSize().width,jl.getPreferredSize().height); for(Component c :lcomponent) { flag=true; Rectangle r4=c.getBounds(); int x1=(int) r4.getX(); int y1=(int) r4.getY(); Rectangle r5 = new Rectangle(new Point(x1-60, y1-60),new Dimension(170,170)); if(r5.contains(p)){ //To ensure that two labels do not overlap or are too close flag = false; // to each other break; }} if(flag) { p2.add(jl); //p2 is a panel Component c2 = p2.getComponentAt(x,y); p2.repaint(); lcomponent.add(c2); //lcomponent is an ArrayList<Component> to store all the labels added to the panel } 2.to remove the label: p2.remove(); p2.repaint();

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  • all individual panels are not shown inside root panel

    - by Suresh Kumar
    Respected sir/madam, I want to add multiple jpanels to jpanel.So i added a root panel to jscrollpane.and then added all individual jpanels to this root panel.I made jscrollpane's scrolling policy as needed.i.e HORIZONTAL_SCROLLBAR_AS_NEEDED,VERTICAL_SCROLLBAR_AS_NEEDED. But the problem is all individual panels are not shown inside root panel. Code: JScrollPane scPanel=new JScrollPane(); JPanel rootPanel=new JPanel(); rootPanel.setLayout(new FlowLayout()); JPanel indPanel = new JPanel(); rootPanel.add(indPanel); JPanel indPanel2 = new JPanel(); rootPanel.add(indPanel2); //.....like this added indPanals to rootPanel. scPanel.setViewPortView(rootPanel); //scPanel.setHorizontalScrollPolicy(HORIZONTAL_SCROLLBAR_AS_NEEDED); And one more thing is, as i scroll the scrollbar the panels are going out of jscrollpane area. I am not able to see all individual panels, Please suggest me.

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  • I create a JPanel and GridBagLayout within an object but when I get it in the main object, attributes are missing

    - by chickeneaterguy
    public oijoij() { String name = "Jackie"; int priority = 50; int minPriority = 90; setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 450, 300); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); contentPane.setLayout(new BorderLayout(0, 0)); setContentPane(contentPane); JPanel panel = new JPanel(); GridBagLayout gbc_panel = new GridBagLayout(); gbc_panel.columnWidths = new int[]{0,0,0}; gbc_panel.rowHeights = new int[]{0, 0, 0, 0, 0, 0}; gbc_panel.columnWeights = new double[]{0.0, 0.0, Double.MIN_VALUE}; gbc_panel.rowWeights = new double[]{0.0, 0.0, 0.0, 0.0, 0.0, Double.MIN_VALUE}; panel.setBorder(new LineBorder(new Color(0,0,0),1)); panel.setLayout(gbc_panel); panel.setAlignmentX(Component.LEFT_ALIGNMENT); panel.setMinimumSize(new Dimension(110,110)); panel.setPreferredSize(new Dimension(110, 110)); panel.setSize(new Dimension(110,110)); JLabel lblNewLabel = new JLabel("Process ID:"); GridBagConstraints gbc_lblNewLabel = new GridBagConstraints(); gbc_lblNewLabel.gridheight = 2; gbc_lblNewLabel.insets = new Insets(0, 0, 5, 5); gbc_lblNewLabel.gridx = 0; gbc_lblNewLabel.gridy = 0; panel.add(lblNewLabel, gbc_lblNewLabel); JLabel lblNewLabel_1 = new JLabel(name); GridBagConstraints gbc_lblNewLabel_1 = new GridBagConstraints(); gbc_lblNewLabel_1.gridheight = 2; gbc_lblNewLabel_1.insets = new Insets(0, 0, 5, 0); gbc_lblNewLabel_1.gridx = 1; gbc_lblNewLabel_1.gridy = 0; panel.add(lblNewLabel_1, gbc_lblNewLabel_1); JLabel lblNewLabel_2 = new JLabel("Priority:"); GridBagConstraints gbc_lblNewLabel_2 = new GridBagConstraints(); gbc_lblNewLabel_2.insets = new Insets(0, 0, 5, 5); gbc_lblNewLabel_2.gridx = 0; gbc_lblNewLabel_2.gridy = 2; panel.add(lblNewLabel_2, gbc_lblNewLabel_2); JLabel lblNum = new JLabel(Integer.toString(priority)); GridBagConstraints gbc_lblNum = new GridBagConstraints(); gbc_lblNum.insets = new Insets(0, 0, 5, 0); gbc_lblNum.gridx = 1; gbc_lblNum.gridy = 2; panel.add(lblNum, gbc_lblNum); JLabel lblNewLabel_3 = new JLabel("Min Priority:"); GridBagConstraints gbc_lblNewLabel_3 = new GridBagConstraints(); gbc_lblNewLabel_3.insets = new Insets(0, 0, 5, 5); gbc_lblNewLabel_3.gridx = 0; gbc_lblNewLabel_3.gridy = 3; panel.add(lblNewLabel_3, gbc_lblNewLabel_3); JLabel lblMp = new JLabel(Integer.toString(minPriority)); GridBagConstraints gbc_lblMp = new GridBagConstraints(); gbc_lblMp.insets = new Insets(0, 0, 5, 0); gbc_lblMp.gridx = 1; gbc_lblMp.gridy = 3; panel.add(lblMp, gbc_lblMp); JLabel lblTimeSlice = new JLabel("Time Slice:"); GridBagConstraints gbc_lblTimeSlice = new GridBagConstraints(); gbc_lblTimeSlice.insets = new Insets(0, 0, 0, 5); gbc_lblTimeSlice.gridx = 0; gbc_lblTimeSlice.gridy = 4; panel.add(lblTimeSlice, gbc_lblTimeSlice); Random r = new Random(System.currentTimeMillis()); panel.setBackground(new Color( r.nextInt(255 - 210) + 210, r.nextInt(255 - 210) + 210, r.nextInt(255 - 210) + 210)); } I have accessor methods for the GridBagLayout and the JPanel. When calling the functions in another file, it looks like I just get the JPanel (but without any labels or the layout or other GridBagLayout features). Help?

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  • How do I determine if a JDialog has children?

    - by Morinar
    I've got a custom window class that is a couple levels down extending a JDialog. We have windows that we create and sometimes we create new windows as children of existing windows using the constructor that takes a parent argument. I need to put some code somewhere in our custom class that does something different depending on whether not the window has children. I know of getParent(), etc, and I can see that I can loop through the components of the window, but for the life of me, I can't seem to figure out how to determine whether or not my current window has any child windows. Is there a way to do this? Any help is, as always, much appreciated.

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  • Java - Problem in JTree

    - by Yatendra Goel
    There are 2 JTree: JTree1 and JTree2. Note that the nodes (country, city, colors, blue ...) all will be implemented as JCheckboxes so that user can select particular colors for each city or for the whole country by selecting their corresponding checkboxes. Problems: Q1. I want that each country or city can have its own colors selected. Means if a user wants city1.1 to have colors blue and violet and city2.1 to have colors red, then he first have to select the city1.1 checkbox and then select blue and violet, and after that when he selects city2.1, then the checkboxes blue and violet are deselected automatically so that user can select the colors for city2.1. But when the user selects the city1.1 again, then the JTree2should show the selected colors (bule and violet) for city1.1. So for this purpose, Is the JTree (with its nodes as checkboxes) correct option to implement or I should use some other JComponent? If JTree is a correct option, then how can I remember the colors of each city?

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  • Java Backgroundworker: Scope of Widget to be updated unclear

    - by erlord
    Hi all, I am trying to understand the mechanism of org.jdesktop.swingx.BackgroundWorker. Their javadoc presents following example: final JLabel label; class MeaningOfLifeFinder implements BackgroundListener { public void doInBackground(BackgroundEvent evt) { String meaningOfLife = findTheMeaningOfLife(); evt.getWorker().publish(meaningOfLife); } public void process(BackgroundEvent evt) { label.setText("" + evt.getData()); } public void done(BackgroundEvent evt) {} public void started(BackgroundEvent evt) {} } (new MeaningOfLifeFinder()).execute(); Apart from the fact that I doubt the result will ever get published, I wonder how label is passed to the process method, where it is being updated. I thought it's scope is limited to the outside of the BackgroudListener implementation. Quite confused I am ... any answers for me? Thanks in advance

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  • scala for yield setting a value

    - by coubeatczech
    Hi, I want to create a list of GridBagPanel.Constraints. I read it in the scala programming book, that there is a cool for-yield construction, but I probably haven't understood the way it works correctly, because my code doesn't compile. Here it is: val d = for { i <- 0 until 4 j <- 0 until 4 } yield { c = new Constraints c.gridx = j c.gridy = i } I want to generate a List[Constraints] and for every constraint set different x,y values so later, when I later add the components, they're going to be in a grid.

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  • Java mouse motion anywhere on screen

    - by Dave
    I'm sure this is possible but all my searching is coming up blank. In Java is it possible to register for a mouse motion event outside of a Java app? So if the mouse pointer moves anywhere on the screen I get a call back. An approximation is possible with polling MouseInfo.getPointerInfo but there must be a better way. Thanks

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  • GridLayout with single column

    - by Albinoswordfish
    Right now I'm trying to use a GridLayout with only a single column. However I'm having a problem where I don't want the object, in this case a JButton, to be stretched the entire width of the JPanel that it's on. Is there a way to decrease the width of the JButton so that it does not stretch the entire width of the JPanel. I've tried using setPreferredSize and setSize with no results. Is this just the way GridLayout works or is there something I'm missing?

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  • Cannot install Visual Editor Plugin on Eclipse

    - by lyuba
    I try to follow the instructions from here to install a Visual editor pulgin for Eclipse: http://wiki.eclipse.org/VE/Update Both online and offline installations fails with the following mistake: Cannot complete request. Generating details. Here is the complete log: Cannot complete the install because of a conflicting dependency. Software being installed: Java EMF Model 1.4.0.v20090826-1446-7H-FPbAcggQleH8hJifHfUd (org.eclipse.jem.feature.group 1.4.0.v20090826-1446-7H-FPbAcggQleH8hJifHfUd) Software currently installed: Eclipse IDE for Java EE Developers 1.2.2.20100217-2310 (epp.package.jee 1.2.2.20100217-2310) Only one of the following can be installed at once: Java EMF Model BeanInfo (Introspection) Support 2.0.300.v200905030615 (org.eclipse.jem.beaninfo 2.0.300.v200905030615) Java EMF Model BeanInfo (Introspection) Support 2.0.300.R3_1_maintenance (org.eclipse.jem.beaninfo 2.0.300.R3_1_maintenance) Cannot satisfy dependency: From: Eclipse IDE for Java EE Developers 1.2.2.20100217-2310 (epp.package.jee 1.2.2.20100217-2310) To: org.eclipse.epp.package.jee.feature.feature.group [1.2.2.20100217-2310] Cannot satisfy dependency: From: Java EE IDE Feature 1.2.2.20100217-2310 (org.eclipse.epp.package.jee.feature.feature.group 1.2.2.20100217-2310) To: org.eclipse.jst.web_ui.feature.feature.group 0.0.0 Cannot satisfy dependency: From: Java EMF Model 1.4.0.v20090826-1446-7H-FPbAcggQleH8hJifHfUd (org.eclipse.jem.feature.group 1.4.0.v20090826-1446-7H-FPbAcggQleH8hJifHfUd) To: org.eclipse.jem.beaninfo [2.0.300.R3_1_maintenance] Cannot satisfy dependency: From: JST Web Core 3.1.1.v200908121609-7S7CFyvFIhIehVidwyfk0m (org.eclipse.jst.web_core.feature.feature.group 3.1.1.v200908121609-7S7CFyvFIhIehVidwyfk0m) To: org.eclipse.jem.beaninfo [2.0.300.v200905030615] Cannot satisfy dependency: From: JST Web Core 3.1.1.v200908121609-7S7CG-dFIhIeq7kV6qxaLD (org.eclipse.jst.web_core.feature.feature.group 3.1.1.v200908121609-7S7CG-dFIhIeq7kV6qxaLD) To: org.eclipse.jem.beaninfo [2.0.300.v200905030615] Cannot satisfy dependency: From: JST Web UI 3.1.1.v200908121609-7E77FBfDlwYa_9sdy2q77doi14gl (org.eclipse.jst.web_ui.feature.feature.group 3.1.1.v200908121609-7E77FBfDlwYa_9sdy2q77doi14gl) To: org.eclipse.jst.web_core.feature.feature.group [3.1.1.v200908121609-7S7CFyvFIhIehVidwyfk0m] Cannot satisfy dependency: From: JST Web UI 3.1.1.v200908121609-7E77FBiDlwYcICNdz-5z-9PGqZCy (org.eclipse.jst.web_ui.feature.feature.group 3.1.1.v200908121609-7E77FBiDlwYcICNdz-5z-9PGqZCy) To: org.eclipse.jst.web_core.feature.feature.group [3.1.1.v200908121609-7S7CG-dFIhIeq7kV6qxaLD] Has anybody encountered something like this? Appreciate your ideas!

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  • how to Update JTable

    - by bob3333
    Good evening I have a JTable that I built with a TableModel how to update the elements of the table, because when I do table = new JTable (new TableProg (elementTab)) I create another table above the original table and it is very ugly So for example how to update element of table in a loop at each iteration as "elementTab" changes? thank you very much

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  • Swingworker producing duplicate output/output out of order?

    - by Stefan Kendall
    What is the proper way to guarantee delivery when using a SwingWorker? I'm trying to route data from an InputStream to a JTextArea, and I'm running my SwingWorker with the execute method. I think I'm following the example here, but I'm getting out of order results, duplicates, and general nonsense. Here is my non-working SwingWorker: class InputStreamOutputWorker extends SwingWorker<List<String>,String> { private InputStream is; private JTextArea output; public InputStreamOutputWorker(InputStream is, JTextArea output) { this.is = is; this.output = output; } @Override protected List<String> doInBackground() throws Exception { byte[] data = new byte[4 * 1024]; int len = 0; while ((len = is.read(data)) > 0) { String line = new String(data).trim(); publish(line); } return null; } @Override protected void process( List<String> chunks ) { for( String s : chunks ) { output.append(s + "\n"); } } }

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  • Adding a JLabel to JLayeredPane from event listener not dragging.

    - by Cody
    Ok, So for some reason When I add components to a JLayeredPane in its constructor: JLabel label = new JLabel(); label.setSize(100,100); label.setText("This works"); add(label); It works perfectly fine, but If a add it later in the JLayeredPane's parent EDT it doesnt let me move the objects around but they let me see the objects. Adding from EDT: JLabel label = new JLabel(); label.setToolTipText(url.getHost()); label.setIcon(icon); label.setBorder(new LineBorder(null)); label.setSize(icon.getIconWidth(), icon.getIconHeight()); dressFrame.layeredPane.add(label, JLayeredPane.DRAG_LAYER); Dragging method: Component c = findComponentAt(e.getX(), e.getY()); if (c instanceof JLayeredPane) { pieceSelected = false; return; } Point parentLocation = c.getLocation(); xAdjustment = parentLocation.x - e.getX(); yAdjustment = parentLocation.y - e.getY(); movingPiece = c; movingPiece.setLocation(e.getX() + xAdjustment, e.getY() + yAdjustment); pieceSelected = true;

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