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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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  • How can I set size of a button?

    - by Roman
    I put my buttons in a JPane with GridLayout. Then I put JPanel into another JPanel with BoxLayout.Y_AXIS. I want buttons in the GridLayout to be square. I use tmp.setSize(30,30) and it does not work. I also try to use new GridLayout(X, Y, 4, 4) but I cannot figure out what X and Y are. So, what is the correct way to do this stuff?

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  • Netbeans jar file icon problems

    - by Erma
    I finally found how to make an exe project in Netbeans, so a jar file and execute it from the DESKTOP. The only problem I have ocurred is that after I open the jar file and login with my username and password the button icons are not shown, if I put a string it appears but if I put the image it doesn't appear. So,I had to restore this code: JButton btnNew = new JButton(new ImageIcon("new.gif")); JButton btnUpdate = new JButton(new ImageIcon("NotePad.gif")); JButton btnDelete = new JButton(new ImageIcon("delete.gif")); JButton btnSearch = new JButton(new ImageIcon("find.gif")); and put this one: JButton btnNew = new JButton("ADD"); JButton btnUpdate = new JButton("Update"); JButton btnDelete = new JButton("Delete"); JButton btnSearch = new JButton("Search"); It now works but I would like to have the icons please. Any idea?

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  • Java - Custom PropertyEditorSupport to display units

    - by I82Much
    All, I'm trying to make the properties of my node have Units associated with the measure. ( I am using the JScience.org implementation of JSR 275) So for instance, public class Robot extends AbstractNode { // in kg float vehicleMass; @Override public Sheet createSheet() { Sheet s = Sheet.createDefault(); Sheet.Set set = s.createPropertiesSet(); try { PropertySupport.Reflection vehicleMassField = new PropertySupport.Reflection(this, float.class, "vehicleMass"); vehicleMassField.setValue("units", SI.KILOGRAMS); vehicleMassField.setName("vehicleMass"); set.put(vehicleMassField); PropertyEditorManager.registerEditor(float.class, UnitInPlaceEditor.class); } catch (NoSuchMethodException ex) { Exceptions.printStackTrace(ex); } s.put(set); return s; } } I want my UnitInPlaceEditor to append the units to the end of the string representation of the number, and when the field is clicked (enters edit mode) for the units to disappear and just the number becomes selected for editing. I can make the units appear, but I cannot get the units to disappear when the field enters editing mode. public class UnitsInplaceEditor extends PropertyEditorSupport implements ExPropertyEditor { private PropertyEnv pe; @Override public String getAsText() { // Append the unit by retrieving the stored value } @Override public void setAsText(String s) { // strip off the unit, parse out the number } public void attachEnv(PropertyEnv pe) { this.pe = pe; } } Here's a screenshot of the display - I like it like this.. but here's the value being edited; note the unit stays there. Basically I want one value (string) to be displayed in the field when the field is NOT being edited, and a different to be displayed when user starts editing the field. Barring that, I'd like to put a constant jlabel for the units (uneditable) to the right of the text field. Anyone know how to do this?

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  • adding jpanel into a jframe. netbeans

    - by stdnoit
    i am particularly using netbeans gui editor and i am new to gui i have a jframe created and I added jtabbedpanel. inside the jtabbedpanel i have 2 panels that i call standard and compact i have set standardPanel = new ImagePanel(); which ImagePanel.java is located on different java file how am I suppose to put a panel on different file for reusability ? i obviously dont want all the codes in a single file. is this the right way to design a gui ? thanks

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  • Creating JTable Row Header

    - by Chandu
    Hi all, I'm new to JTable.I'm working in Swings using JTable & Toplink(JPA). I have two buttons "add Row", "Del Row" and I have some records displayed from db. when ever "add row" is clicked a new record, row header should be added to JTable with an auto increment number displayed in sequential order to the JTable Row Header. During deletion using "Del row " button the record has to be deleted & not its corresponding header so that next rows got updated to the previous headers & the auto increment number remain unchanged and always be in sequence. please help me on this regard. Thanks in advance, Chandu

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  • Draw a JButton to look like a JLabel (or at least without the button edge?)

    - by Electrons_Ahoy
    I've got a JButton that for various reasons I want to act like a button, but look like a JLabel. It doesn't actually have to be a JLabel under the hood, I just don't want the raised button edge to show up. Is there an easy way to turn off the "button look" for JButtons but keep all the button functionality? I could build some kind of composed subclass hyperbutton that delegated to a jlabel for display purposes, but I'm really hoping there's something along the lines of button.lookLikeAButton(false).

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  • Why is JFormattedTextField evil?

    - by kwutchak
    Hi, In this question Is there any way to accept only numeric values in a JTextField? one of the answers suggested that JFormattedTextField had issues. I've not yet used it, but could somebody please expand (or disagree) on the issues with this class? Thanks...

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  • How do I move a Java JFrame partially off my Linux desktop?

    - by Erick Robertson
    I'm writing a Java application with movable frames, and I've come across a quirk in Linux. I'm running GNOME 2.16.0 under CentOS. When I use JFrame.setBounds to set the bounds to any location that's half off the screen, it actually sets the location of the frame to be as close as possible to the bounds specified while still staying completely on the screen. This is confusing because other non-Java windows can move half off the screen. How do I tell Java to tell GNOME to actually put the frame where I specify, even if that's half off the screen?

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  • Resizing JPopupMenu and avoiding a "flicker" issue

    - by Avrom
    Hi, I am trying to implement a search results popup list similar to the style found here: http://www.inquisitorx.com/ (I'm not trying to implement a Google search, I'm just using this as a rough example of the style I'm working on.) In any event, I am implementing this by using a JList contained within a JPopupMenu which is popped up underneath a JTextField. When a user enters search terms, the list changes to reflect different matching results. I then call pack on the JPopupMenu to resize it. This works, however, it creates a slight flicker effect since it is actually hiding the popup and showing a popup. (See the private method getPopup in JPopupMenu where it explicitly does this.) Is there any way to just get it to just resize itself (aside from using a JWindow)?

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  • Managing string resources in a Java application - singleton?

    - by Joe Attardi
    I seek a solution to the age-old problem of managing string resources. My current implementation seems to work well, but it depends on using singletons, and I know how often singletons can be maligned. The resource manager class has a singleton instance that handles lookups in the ResourceBundle, and you use it like so: MessageResources mr = MessageResources.getMessageResources(); // returns singleton instance ... JLabel helloLabel = new JLabel(mr.getString("label.hello")); Is this an appropriate use of a singleton? Is there some better, more universally used approach that I'm not aware of? I understand that this is probably a bit subjective, but any feedback I can get would be appreciated. I'd rather find out early on that I'm doing it wrong than later on in the process. Thanks!

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  • JNLP File Association: How do I open the file which was double-clicked on?

    - by Sam Barnum
    I've got the following JNLP: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE jnlp PUBLIC "-//Sun Microsystems, Inc//DTD JNLP Descriptor 6.0.10//EN" "http://java.sun.com/dtd/JNLP-6.0.10.dtd"> <jnlp spec="6.0.10" version="1.63" codebase="http://foo.example.com/msi" href="Foo.jnlp"> <information> <title>Foo</title> <vendor> Foo Systems, Inc.</vendor> <homepage href="http://Foo.com"/> <description>Foo Viewer/Editor Application</description> <icon href="splash.gif" width="425" height="102" kind="splash"/> <icon href="Foo.gif" width="64" height="64"/> <offline-allowed/> <shortcut> <desktop/> <menu submenu="Foo Systems, Inc."/> </shortcut> <association mime-type="application-x/wlog" extensions="wlog"/> <association mime-type="application-x/mplot" extensions="mplot"/> </information> <security> <all-permissions/> </security> <resources> <j2se version="1.6+" initial-heap-size="32m" max-heap-size="255m"/> <jar href="jars_deployment/TimingFramework-1.0.jar"/> <jar href="jars_deployment/iText-2.1.5.jar"/> <jar href="jars_deployment/jai_codec.jar"/> <jar href="Foo.jar"/> <jar href="jars_deployment/TimingFramework-1.0.jar"/> <jar href="jars_deployment/iText-2.1.5.jar"/> <jar href="jars_deployment/jai_codec.jar"/> <jar href="jars_deployment/jsch-20090402.jar"/> <property name="apple.laf.useScreenMenuBar" value="true"/> <property name="apple.awt.graphics.UseQuartz" value="false"/> <property name="com.apple.mrj.application.apple.menu.about.name" value="Foo"/> <property name="java.util.logging.config.file" value="/Users/Shared/logging.properties"/> </resources> <application-desc main-class="com.prosc.msi.editor.ui.test.Sandbox"/> </jnlp> Most everything is working. When I double-click a .wlog file, it opens up my application. However, it doesn't open the correct file. I read somewhere that JNLP was supposed to pass parameters to the main method indicating which file caused the app to be launched, but this is not happening (on OS X 10.6). I get an empty array to my application's main method. Probably unrelated, my splash screen doesn't work :( Any pointers on getting this working?

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  • Drawing star shapes with variable parameters

    - by owca
    Hi. I have task to write program allowing users to draw stars, which can differ in size and amount of arms. When I was dealing with basic stars I was doing it with GeneralPath and tables of points : int xPoints[] = { 55, 67, 109, 73, 83, 55, 27, 37, 1, 43 }; int yPoints[] = { 0, 36, 36, 54, 96, 72, 96, 54, 36, 36 }; Graphics2D g2d = ( Graphics2D ) g; GeneralPath star = new GeneralPath(); star.moveTo( xPoints[ 0 ], yPoints[ 0 ] ); for ( int k = 1; k < xPoints.length; k++ ) star.lineTo( xPoints[ k ], yPoints[ k ] ); star.closePath(); g2d.fill( star ); What method should I choose for drawing stars with variable inner and outer radius, as well as different amount of arms ? This is what I should obtain :

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  • Can Box Layout accept size of included elements?

    - by Roman
    I used myPanel.setLayout(new BoxLayout(myPanel, BoxLayout.Y_AXIS)); to order panels vertically (one under another one). But myPanel defined in the shown way change the included panel. In more details, it tries to set the same hight and width for the included panels. Can it be changed? Can BoxLayout adopt size of the included elements?

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  • Java: Altering UI fonts (Nimbus) doesn't work!

    - by ivan_ivanovich_ivanoff
    Hello! I'm referring to this Nimbus reference. I tried to set global Font to be slightly larger: UIManager.put("defaultFont", new Font(Font.SANS_SERIF, 0, 16)); ...works only for the menu but nothing else (buttons, labels). I tried to change labels and buttons fonts with UIManager.put("Button.font", new Font(Font.SANS_SERIF, 0, 16)); UIManager.put("Label.font", new Font(Font.SANS_SERIF, 0, 16)); but the font remains. The only thing that worked for me was deriving a font: someButton.setFont(someButton.getFont().deriveFont(16f)); But this is not an option, since this must be done for each element manually. Note, that deriving a font for UIManager doesn't work either: UIManager.put("Label.font", UIManager.getFont("Label.font").deriveFont(16f)); I tested everything under Linux and Windows: same behavior. I just can't understand how an API can be so messy. If a method is called setFont(..) then I expect it to set the font. If this method fails to set the font in any thinkable circumstances, then it should be deprecated. EDIT: The problem not only applies to Nimbus, but also to the default LAF.

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  • How to retrieve data from textarea or text field and store in a text file with the same data format,

    - by Sunil Kumar Sahoo
    Hi I have created a text field in java and i am able to get the data from text field and store in a .txt file. But My problem is that let the my data in textfield is in bold and italic format and the font colour is red. Now I want to store the data exactly in the same format in .txt file. I donot know how to write code for that. Anyone please help me to solve this type of problem Thanks Sunil Kumar Sahoo

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  • Changing content of HTMLDocument displayed in a JTextPane

    - by kayahr
    I'm displaying some tables as HTML code (rendered by a Freemarker template) with a JTextPane. I also have some HTML links in this HTML output which can be used to interact with the values of the table (For example "Delete a row" and stuff like this). Currently I always recreate the whole HTML output on each change and replace the whole document in the JTextPane with the new one. This is getting really slow and the JTextPane always changes the scroll position when I do this. Is it possible to change only parts of the HTML code during runtime without replacing the whole document? In a real browser I would use the DOM and do something like document.getElementById("price").innerHTML = "$123.44". Is something like that possible with the HTMLDocument in a JTextPane?

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  • Java2d: Set gradient for a lines

    - by Algorist
    Hi, I am having multiple points in a plane and some hundreds of lines pass through those points. Some points can have more lines passing through them than other points. I want to show some kind of more gradient or brightness associated with lines crowded together. Is this possible to do in java2d. Please refer to this : http://ft.ornl.gov/doku/_media/ft/projects/paraxis.jpg Thank you.

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  • How do I properly display all content in a JTabbedPane?

    - by maleki
    I am nesting a JPanel inside a JTabbedPane. I am having trouble displaying all the content inside of the JTabbedPane. The outside borders of the internal content get chopped off. I am currently not using a Layout Manager for my JTabbedPane or dummy Panel because it stretches my content automatically. How do I add a JPanel inside the JTabbedPane so that I can have an even border around all the content.My attempts to create a dummy panel and setting a border for the inner panel using BorderFactory haven't worked. Is there a convention that I need to know to do this correctly? JTabbedPane tabPane = new JTabbedPane(); GridPane tab1 = new GridPane(); GridPane tab2 = new GridPane(); tabPane.add("My Pieces",tab1); tabPane.add("Opponent Pieces",tab2); public class GridPane extends JPanel { public GridPane() { this.setPreferredSize(new Dimension(400,160)); this.setLayout(new GridLayout(4,10)); this.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT); for (int i = 0; i < 4; i++) { for (int j = 0; j < 10; j++) { boardSquares[i][j] = new JPanel(); boardSquaresArr.add(boardSquares[i][j]); this.add(boardSquares[i][j]); } } } }

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  • How can i setParth for new File use JFilechose , save dialog ?

    - by tiendv
    I have a dialog use Jfilechose, when i save a file by use FileOutputStream to create a file.txt to save in path which user want . But i have problem that it alway save in c:/user/Document Check my code DownLoadDialog downloadDialog = new DownLoadDialog(); int result = downloadDialog.showSaveDialog(queryPanel); if(result == downloadDialog.APPROVE_OPTION) { File file = downloadDialog.getSelectedFile(); //String parth =file.getPath(); //System.out.println(parth); //if(file.exists()) { // int response = JOptionPane.showConfirmDialog (null,"Overwrite existing file?","Confirm Overwrite",JOptionPane.OK_CANCEL_OPTION,JOptionPane.QUESTION_MESSAGE); // if(response == JOptionPane.OK_OPTION) {} //} else { if(resultGoogleSearch > 0) { { String parth = new File(downloadDialog.getSelectedFile().getAbsolutePath().concat(".txt")).toString(); System.out.println(parth); for(int i=0;i<resultGoogleSearch;i++) { String[] temp = googleSearchResult.get(i).split("<br>"); //String resultURL = temp[0]; //File dir = downloadDialog.getCurrentDirectory(); try{ FileOutputStream googleReuslt = new FileOutputStream( downloadDialog.getSelectedFile().getAbsolutePath()+".txt" ); OutputStreamWriter writer = new OutputStreamWriter(googleReuslt); BufferedWriter buffer = new BufferedWriter(writer); writer.write(temp[0]); writer.close(); buffer.close(); } catch (FileNotFoundException fEx){ } catch(IOException ioEx) { } } } JOptionPane.showMessageDialog(IDRSApplication.idrsJFrame, IDRSResourceBundle.res.getString("successful")); } problem is here : why can't i set parth for new file ? FileOutputStream googleReuslt = new FileOutputStream( downloadDialog.getSelectedFile().getAbsolutePath()+".txt" ); OutputStreamWriter writer = new OutputStreamWriter(googleReuslt); BufferedWriter buffer = new BufferedWriter(writer); writer.write(temp[0]); writer.close(); buffer.close();

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  • JOptionPane to appear on selected JCheckBox

    - by Venno
    Hi all I am having some difficulties with adding a joptionpane in JcheckBox listener public void itemStateChanged(ItemEvent evt) { if(evt.getStateChange() == ItemEvent.SELECTED){ ///some code JOptionPane.showMessageDialog(null, "Message", "Alert", JOptionPane.INFORMATION_MESSAGE); } } so it works fine,but the problem is that the JCheckBox gets selected and immediately deselected how can I manage to fix this ? Cheers

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