Java tutorial
/* This file is part of LibreDraw. LibreDraw is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. LibreDraw 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 GNU General Public License for more details. You should have received a copy of the GNU General Public License along with LibreDraw. If not, see <http://www.gnu.org/licenses/>. */ package org.libredraw.client; import com.google.gwt.core.client.GWT; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.user.client.ui.Widget; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.DialogBox; import com.google.gwt.uibinder.client.UiHandler; import com.google.gwt.event.dom.client.ClickEvent; public class Overlay extends DialogBox { private static overlayUiBinder uiBinder = GWT.create(overlayUiBinder.class); @UiField Button CloseOverlay; interface overlayUiBinder extends UiBinder<Widget, Overlay> { } public Overlay() { setWidget(uiBinder.createAndBindUi(this)); this.setText("Overlay"); this.setAnimationEnabled(true); this.setAnimationEnabled(true); this.setGlassEnabled(true); this.center(); } @UiHandler("CloseOverlay") void onCloseOverlayClick(ClickEvent event) { this.hide(); this.removeFromParent(); } }