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jvx:reference [2020/06/10 13:05] cduncan [Entry point] |
jvx:reference [2020/06/10 13:08] cduncan [The launcher] |
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| All we have to do there is start the launcher itself. As the comment suggests, there might be work required for a “real” application startup. For this example, it is all we need to do. Of course, we could also directly embed this little function into the launcher implementation itself to save us one class. | All we have to do there is start the launcher itself. As the comment suggests, there might be work required for a “real” application startup. For this example, it is all we need to do. Of course, we could also directly embed this little function into the launcher implementation itself to save us one class. | ||
| - | ===== The launcher ===== | + | ===== The Launcher ===== |
| - | The ''%%ILauncher%%'' implementation on the other hand contains quite some logic, but nothing not manageable: | + | The ''%%ILauncher%%'' implementation, on the other hand, contains quite some logic but nothing not manageable: |
| <code java> | <code java> | ||
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| } | } | ||
| </code> | </code> | ||
| - | In short, the launcher is kicking off the Swing thread by invoking the startup method on the main Swing thread. This startup method will instantiate the factory and then create the application. From there we only need to set it visible and then our application has started. | + | In short, the launcher is kicking off the Swing thread by invoking the startup method on the main Swing thread. This startup method will instantiate the factory and then create the application. From there, we only need to set it to visible and then our application has started. |
| - | The launcher extends from ''%%SwingFrame%%'', that is required because there hasn’t been a factory created yet which could be used by UI components to create themselves. If we’d try to use an UI component before creating/setting a factory, we would obviously see the constructor of the component fail with a ''%%NullPointerException%%''. | + | The launcher extends from ''%%SwingFrame%%''. That is required because there hasn’t been a factory created yet that could be used by UI components to create themselves. If we’d try to use an UI component before creating/setting a factory, we would see the constructor of the component fail with a ''%%NullPointerException%%''. |
| - | The method ''%%startup()%%'' is invoked on the main Swing thread, which also happens to be the main UI thread for [[https://sourceforge.net/projects/jvx/|JVx]] in this application. Once we are on the main UI thread we can create the application, add it and then set everything to visible. | + | The method ''%%startup()%%'' is invoked on the main Swing thread, which also happens to be the main UI thread for [[https://sourceforge.net/projects/jvx/|JVx]] in this application. Once we are on the main UI thread, we can create the application, add it, and then set everything to visible. |
| ===== The application ===== | ===== The application ===== | ||