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/*
* java-gnome, a UI library for writing GTK and GNOME programs from Java!
*
* Copyright © 2006-2010 Operational Dynamics Consulting, Pty Ltd
*
* The code in this file, and the program it is a part of, is made available
* to you by its authors as open source software: you can redistribute it
* and/or modify it under the terms of the GNU General Public License version
* 2 ("GPL") as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GPL for more details.
*
* You should have received a copy of the GPL along with this program. If not,
* see http://www.gnu.org/licenses/. The authors of this program may be
* contacted through http://java-gnome.sourceforge.net/.
*/
import java.io.FileNotFoundException;
import org.gnome.gdk.Event;
import org.gnome.gdk.Pixbuf;
import org.gnome.gdk.Screen;
import org.gnome.gtk.Button;
import org.gnome.gtk.FileChooserAction;
import org.gnome.gtk.FileChooserButton;
import org.gnome.gtk.FontButton;
import org.gnome.gtk.Gtk;
import org.gnome.gtk.Label;
import org.gnome.gtk.ReliefStyle;
import org.gnome.gtk.VBox;
import org.gnome.gtk.Widget;
import org.gnome.gtk.Window;
/**
* A simple demonstration program to experiment with, and validate, the
* end-developer design of the new java-gnome 4.0 bindings architecture.
*
* @author Andrew Cowie
*/
public final class Experiment
{
/*
* It is not, strictly speaking, necessary to put the UI building code
* into a constructor; there's nothing wrong in a tiny program with doing
* it all in static code in main().
*
* What we gain, however, is that the references to all the objects
* created become unreachable as soon as it runs, and that allowed us to
* evaluate that the memory management is working correctly.
*/
private Experiment() {
final Window w;
final VBox x;
final Label l;
final Button b;
final FileChooserButton fcb;
final FontButton fb;
final Screen s;
final Pixbuf logo;
w = new Window();
x = new VBox(false, 3);
l = new Label("These Buttons\nare <b>made</b> for\nclicking.");
l.setUseMarkup(true);
x.packStart(l, true, true, 0);
b = new Button("Change Me?");
b.setLabel("Press Me!");
b.setRelief(ReliefStyle.NORMAL);
x.packStart(b, false, false, 0);
fcb = new FileChooserButton("Good to get, a file is", FileChooserAction.OPEN);
x.packStart(fcb, false, false, 0);
fb = new FontButton();
x.packStart(fb, false, false, 0);
w.add(x);
w.setTitle("Experiments");
w.showAll();
s = w.getScreen();
w.move(s.getWidth() - 200, s.getHeight() - 200);
b.connect(new Button.Clicked() {
public void onClicked(Button source) {
System.out.println("I was clicked... " + b.getLabel());
}
});
w.connect(new Window.DeleteEvent() {
public boolean onDeleteEvent(Widget source, Event event) {
System.out.println("I was deleted!");
Gtk.mainQuit();
return false;
}
});
fcb.connect(new FileChooserButton.FileSet() {
public void onFileSet(FileChooserButton source) {
System.out.println("File selected: " + source.getURI());
System.gc();
}
});
fb.connect(new FontButton.FontSet() {
public void onFontSet(FontButton source) {
System.out.println(fb.getFontName());
}
});
b.setTooltipText("Pressing this Button will result in some output");
try {
logo = new Pixbuf("src/bindings/java-gnome_Icon.png");
w.setIcon(logo);
} catch (FileNotFoundException fnfe) {
System.err.println("Where's the logo?");
}
}
public static void main(String[] args) {
Gtk.init(args);
new Experiment();
Gtk.main();
// Observe release() being done on the various Proxies created. As
// ever, though, calling gc() is not imperative.
System.gc();
// And, hopefully, we make it out of the main loop without crashing
System.out.println("Bye now.");
}
}
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