/* * This is part of Geomajas, a GIS framework, http://www.geomajas.org/. * * Copyright 2008-2015 Geosparc nv, http://www.geosparc.com/, Belgium. * * The program is available in open source according to the GNU Affero * General Public License. All contributions in this program are covered * by the Geomajas Contributors License Agreement. For full licensing * details, see LICENSE.txt in the project root. */ package org.geomajas.plugin.editing.gwt.example.client.widget; import org.geomajas.plugin.editing.client.event.GeometryEditShapeChangedEvent; import org.geomajas.plugin.editing.client.event.GeometryEditShapeChangedHandler; import org.geomajas.plugin.editing.client.event.GeometryEditStartEvent; import org.geomajas.plugin.editing.client.event.GeometryEditStartHandler; import org.geomajas.plugin.editing.client.event.GeometryEditStopEvent; import org.geomajas.plugin.editing.client.event.GeometryEditStopHandler; import org.geomajas.plugin.editing.client.operation.GeometryOperationFailedException; import org.geomajas.plugin.editing.client.service.GeometryEditService; import org.geomajas.plugin.editing.gwt.example.client.event.GeometryEditResumeEvent; import org.geomajas.plugin.editing.gwt.example.client.event.GeometryEditSuspendEvent; import org.geomajas.plugin.editing.gwt.example.client.event.GeometryEditSuspendResumeHandler; import com.smartgwt.client.widgets.events.ClickEvent; import com.smartgwt.client.widgets.events.ClickHandler; import com.smartgwt.client.widgets.toolbar.ToolStripButton; /** * Toolbar button that applies a "redo" after one or more "undo" actions have been executed. * * @author Pieter De Graef */ public class RedoBtn extends ToolStripButton implements GeometryEditShapeChangedHandler, GeometryEditStartHandler, GeometryEditStopHandler, GeometryEditSuspendResumeHandler { private GeometryEditService service; public RedoBtn(final GeometryEditService service) { this.service = service; setIcon("[ISOMORPHIC]/geomajas/silk/redo.png"); setIconSize(24); setHeight(32); setDisabled(true); setHoverWrap(false); setTooltip("Redo the last change."); addClickHandler(new ClickHandler() { public void onClick(ClickEvent event) { try { service.redo(); onGeometryShapeChanged(null); } catch (GeometryOperationFailedException e) { } } }); service.addGeometryEditShapeChangedHandler(this); service.addGeometryEditStartHandler(this); service.addGeometryEditStopHandler(this); } // ------------------------------------------------------------------------ // GeometryEditWorkflowHandler implementation: // ------------------------------------------------------------------------ public void onGeometryEditStart(GeometryEditStartEvent event) { } public void onGeometryEditStop(GeometryEditStopEvent event) { setDisabled(true); } // ------------------------------------------------------------------------ // GeometryEditOperationHandler implementation: // ------------------------------------------------------------------------ public void onGeometryShapeChanged(GeometryEditShapeChangedEvent event) { if (service.canRedo()) { setDisabled(false); } else { setDisabled(true); } } // ------------------------------------------------------------------------ // GeometryEditSuspensionHandler implementation: // ------------------------------------------------------------------------ public void onGeometryEditSuspend(GeometryEditSuspendEvent event) { setDisabled(true); } public void onGeometryEditResume(GeometryEditResumeEvent event) { if (service.canRedo()) { setDisabled(false); } else { setDisabled(true); } } }