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/*
* java-gnome, a UI library for writing GTK and GNOME programs from Java!
*
* Copyright © 2009-2011 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 org.freedesktop.cairo.Context;
import org.gnome.gdk.Event;
import org.gnome.gdk.EventKey;
import org.gnome.gtk.DrawingArea;
import org.gnome.gtk.Gtk;
import org.gnome.gtk.InputMethod;
import org.gnome.gtk.SimpleInputMethod;
import org.gnome.gtk.Widget;
import org.gnome.gtk.Window;
import org.gnome.pango.FontDescription;
import org.gnome.pango.Layout;
/**
* Experiment with GTK's input method system.
*
* @author AndrewCowie
*/
public class ManualInput
{
public static void main(String[] args) {
final Window w;
final DrawingArea d;
final InputMethod im;
final StringBuilder buf;
Gtk.init(args);
w = new Window();
w.setTitle("Text editor");
w.setDefaultSize(200, 100);
d = new DrawingArea();
d.setCanFocus(true);
w.add(d);
im = new SimpleInputMethod();
im.setUsePreedit(true);
buf = new StringBuilder("Hello");
d.connect(new Widget.Draw() {
public boolean onDraw(Widget source, Context cr) {
final Layout layout;
final FontDescription desc;
layout = new Layout(cr);
desc = new FontDescription("DejaVu Serif, Book 12");
layout.setFontDescription(desc);
layout.setText(buf.toString());
source.setSizeRequest(layout.getPixelWidth(), layout.getPixelHeight());
cr.showLayout(layout);
return false;
}
});
d.connect(new Widget.KeyPressEvent() {
public boolean onKeyPressEvent(Widget source, EventKey event) {
if (im.filterKeypress(event)) {
return true;
}
return false;
}
});
d.connect(new Widget.KeyReleaseEvent() {
public boolean onKeyReleaseEvent(Widget source, EventKey event) {
if (im.filterKeypress(event)) {
return true;
}
return false;
}
});
im.connect(new InputMethod.Commit() {
public void onCommit(InputMethod source, String str) {
buf.append(str);
d.queueDraw();
}
});
w.connect(new Window.DeleteEvent() {
public boolean onDeleteEvent(Widget source, Event event) {
Gtk.mainQuit();
return false;
}
});
w.showAll();
Gtk.main();
}
}
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