Recent Posts by Geertjan Wielenga

In the Node, displayed in a viewer TopComponent, add an OpenCookie to the Lookup, and define it such that a new editor TopComponent is created only if no currently open editor TopComponent contains the Object in its Lookup: public class PersonNode extends BeanNode { public PersonNode(Person person) throws IntrospectionException { this(person, new InstanceContent()); } private PersonNode(final Person person, InstanceContent ic) throws IntrospectionException { ...

Sometimes you have Nodes with an expansion icon, i.e., the "plus" sign, even though the Object doesn't have Children. Once the user tries to expand the Node, the "plus" sign disappears, and no Children are shown. Kind of misleading because the user thought that there would be Children because the expansion icon was shown. Would be nicer if there were to be no expansion icon if the Object has no Children. Here's how to solve that, via Children.createLazy: public class MyNode...

NetBeans IDE 7.3 is available in English, Brazilian Portuguese, Japanese, Russian, and Simplified Chinese.  That means that you can create an application on top of the framework beneath NetBeans IDE, i.e., the NetBeans Platform, and without needing to do anything at all, all those languages will be automatically available and can be enabled from the .conf file of the application. Each JAR in NetBeans IDE has an equivalent JAR in all of the above languages, containing...

On this page you can download dozens of free HTML/CSS templates: http://www.free-css.com/ Once you've done so, go to the New Project wizard in NetBeans IDE, and choose HTML/JavaScript and then "HTML5 Application with Existing Sources". Browse to the root folder of any of the templates you've downloaded and then NetBeans IDE will create a new HTML5 project for you. Run the application from the IDE into the embedded browser (or into Chrome, with the installed NetBeans/Chrome...

Reference: http://svetzal.wordpress.com/2009/12/17/using-java-ee-6-without-java/

The meaty part of the "Working with CSS Style Sheets in an HTML5 Application" tutorial is where you start working with tools for CSS rules. When you follow the instructions and call up the Edit CSS Rules dialog from the CSS Styles window, you may find that your CSS file isn't shown there. Instead, you can open that same dialog from the Navigator, as shown in the (soundless) YouTube movie below, which always correctly shows all the available CSS files, so that you can use the...

In the background of the Bloomberg.tv item below, you see Joe Stewart from Dell Secureworks using a colorful graphy visualizer of network connections. Guess what that application is? http://www.youtube.com/embed/Tox2G3YqZ_M Answer: That's Maltego, the open source Java based forensics application created on the NetBeans Platform, with a fantastic NetBeans visual library implementation as its main feature, by Paterva in South Africa! Great work, Paterva guys!

Keanu Reeves seems a lot more thoughtful than the characters he portrays, in Keanu Reeves Is Right About the Future of Cinema: The debate isn’t about whether digital is better than celluloid. It’s about giving an artist the choice … about the individual’s style. It’s not pining for the past, nor championing a digital revolution. It’s arguing that it’s an exciting time for the industry. In the same way, the debate in the software industry isn't about whether mobile is better or...