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Old 09-18-2004, 03:15 PM   #1
rmanocha
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Registered: Oct 2003
Location: Austin,TX
Distribution: Debian SID-->fully content-->Love APT,kernel 2.6.4
Posts: 327

Rep: Reputation: 30
java-gnome Menu click event(nothing happens)


Hi,
I have recently found an urge to learn GUI designing and programming. Since I am a java coder(for the most part) and since I love gnome, i started off with using the java-gnome bindings to develop some basic and simple GUI's using java.
I started with the tutorial given on the java-gnome site.
I got to the second example code and copied it over. it compiles and executes fine...but clicking on quit in the file menu or clicking on help/about do not show/execute anything..even though looking at the code..they should.
I am attaching the code here:
Code:
import org.gnu.gnome.About;
import org.gnu.gnome.App;
import org.gnu.gnome.Program;
import org.gnu.gnome.UIInfo;
import org.gnu.gtk.ButtonsType;
import org.gnu.gtk.DialogFlags;
import org.gnu.gtk.Gtk;
import org.gnu.gtk.MessageDialog;
import org.gnu.gtk.MessageType;
import org.gnu.gtk.event.LifeCycleEvent;
import org.gnu.gtk.event.LifeCycleListener;
import org.gnu.gtk.event.MenuItemEvent;
import org.gnu.gtk.event.MenuItemListener;

public class Second implements MenuItemListener {
	private App app = null;
	public static final String appVersion = "0.1";

	public Second() {
		createMainWindow();
		createMenus();
		app.showAll();
	}

	private void createMainWindow() {
		app = new App("Second", "Second App");
		app.setDefaultSize(200, 200);
		app.addListener(new LifeCycleListener() {
			public void lifeCycleEvent(LifeCycleEvent event) {}
			public boolean lifeCycleQuery(LifeCycleEvent event) {
				Gtk.mainQuit();
				return false;
			}
		});
	}

	private void createMenus() {

		UIInfo fileMenu[] = {
			UIInfo.newItem("New Window", "Open a new application window", this),
			UIInfo.separator(),
			UIInfo.openItem(this),
			UIInfo.saveItem(this),
			UIInfo.saveAsItem(this),
			UIInfo.separator(),
			UIInfo.closeItem(this),
			UIInfo.quitItem(new MenuItemListener() {
				public void menuItemEvent(MenuItemEvent event) {
					fileExit();
				}
			}),
			UIInfo.end()
		};

		UIInfo editMenu[] = {
			UIInfo.undoItem(this),
			UIInfo.redoItem(this),
			UIInfo.separator(),
			UIInfo.cutItem(this),
			UIInfo.copyItem(this),
			UIInfo.pasteItem(this),
			UIInfo.separator(),
			UIInfo.findItem(this),
			UIInfo.findAgainItem(this),
			UIInfo.replaceItem(this),
			UIInfo.propertiesItem(this),
			UIInfo.end()
		};

		UIInfo moveMenu[] = {
			UIInfo.item("_Up", "Move selection up", this),
			UIInfo.item("D_own", "Move selection down", this),
			UIInfo.end()
		};

		UIInfo helpMenu[] = {
			UIInfo.help("second"),
			UIInfo.aboutItem(new MenuItemListener() {
				public void menuItemEvent(MenuItemEvent event) {
					helpAbout();
				}
			}),
			UIInfo.end()
		};

		UIInfo mainMenu[] = {
			UIInfo.subtree("_File", fileMenu),
			UIInfo.subtree("_Edit", editMenu),
			UIInfo.subtree("_Move", moveMenu),
			UIInfo.subtree("_Help", helpMenu),
			UIInfo.end()
		};

		app.createMenus(mainMenu);
	}

	public void helpAbout() {
		String title = "Second App";
		String version = "Version " + appVersion;
		String license = "GPL";
		String[] authors = { "The Java-GNOME team" };
		String comments = "This example is a part of the Java-GNOME tutorial";
		String[] documenters = { "Many people" };
		String translator = "";
		About about =
			new About(title, version, license, comments, authors, documenters, translator, null);
		about.show();
	}

	public void fileExit() {
		Gtk.mainQuit();
	}

	public void menuItemEvent(MenuItemEvent event) {
		MessageDialog dialog = new MessageDialog(app, DialogFlags.MODAL, 
												MessageType.INFO, ButtonsType.OK,
												"Not implemented", false);
		dialog.run();
		dialog.destroy();
	}

	public static void main(String[] args) {
		Program.initGnomeUI("Second", Second.appVersion, args);
		new Second();
		Gtk.main();
	}
}
I would really appreciate if someone could tell me what is going on. I did leave a message on the java-gnome mailing list but i got no replies from there either.
Thanks
 
  


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