Java tutorial
/* * OneCMDB, an open source configuration management project. * Copyright 2007, Lokomo Systems AB, and individual contributors * as indicated by the @authors tag. See the copyright.txt in the * distribution for a full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package org.onecmdb.ui.gwt.toolkit.client.view.table; import java.util.List; import org.gwtiger.client.widget.HoverGridWidget; import org.onecmdb.ui.gwt.toolkit.client.control.input.AttributeValue; import org.onecmdb.ui.gwt.toolkit.client.control.input.IBaseField; import org.onecmdb.ui.gwt.toolkit.client.control.listener.LoadListener; import org.onecmdb.ui.gwt.toolkit.client.control.listener.LoadListenerCollection; import org.onecmdb.ui.gwt.toolkit.client.control.listener.order.IOrderListener; import org.onecmdb.ui.gwt.toolkit.client.control.listener.order.ISourcesOrderEvents; import org.onecmdb.ui.gwt.toolkit.client.control.listener.order.OrderEvent; import org.onecmdb.ui.gwt.toolkit.client.control.table.ITableControl; import org.onecmdb.ui.gwt.toolkit.client.model.onecmdb.GWT_AttributeBean; import org.onecmdb.ui.gwt.toolkit.client.view.input.AttributeRender; import org.onecmdb.ui.gwt.toolkit.client.view.input.IAttributeRender; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.Widget; public class CITablePanel extends HoverGridWidget implements IOrderListener { protected static final String STYLE_CELL = "gwtiger-tableCell"; protected static final String STYLE_HEADER_CELL = "gwtiger-tableHeaderCell"; private ITableControl control; private IAttributeRender render; private LoadListenerCollection loadListenerCollection = new LoadListenerCollection(); public CITablePanel() { getColumnFormatter().setStyleName(0, STYLE_HEADER); } public ITableControl getTableControl() { return (this.control); } public void setTabelControl(ITableControl control) { this.control = control; } public void addHeader(int column, Widget header) { //hasHeader=true; RowFormatter rowFormatter = getRowFormatter(); rowFormatter.setStyleName(0, STYLE_HEADER); header.setStyleName(STYLE_HEADER_CELL); setWidget(0, column, header); } public void load() { if (getRowCount() > 0) { removeRow(0); } this.control.getColumns(new AsyncCallback() { public void onFailure(Throwable caught) { loadListenerCollection.fireOnLoadFailure(CITablePanel.this, caught); } public void onSuccess(Object result) { if (result instanceof List) { List resultList = (List) result; addHeader(0, "#"); for (int col = 1; col < (resultList.size() + 1); col++) { Object column = resultList.get(col - 1); Widget columnWidget = render.getColumnHeaderWidget(column); if (columnWidget instanceof ISourcesOrderEvents) { ((ISourcesOrderEvents) columnWidget).addOrderListener(CITablePanel.this); } addHeader(col, columnWidget); } } } }); reload(); } protected void reload() { loadListenerCollection.fireOnLoadStart(this); this.control.getRows(new AsyncCallback() { public void onFailure(Throwable caught) { loadListenerCollection.fireOnLoadFailure(CITablePanel.this, caught); } public void onSuccess(Object result) { if (result instanceof List) { List rows = (List) result; Integer firstItem = control.getFirstItem(); int rowIndex = 1; if (firstItem != null) { rowIndex = firstItem.intValue(); rowIndex++; } System.out.println("ROW COUNT=" + rows.size()); for (int row = 0; row < rows.size(); row++) { Object rowData = rows.get(row); setText(row + 1, 0, "" + rowIndex); rowIndex++; if (((row + 1) % 2) == 0) { getRowFormatter().setStyleName(row + 1, STYLE_ROW_EVEN); } else { getRowFormatter().setStyleName(row + 1, STYLE_ROW_ODD); } getCellFormatter().setStyleName(row + 1, 0, STYLE_HEADER); if (rowData instanceof List) { List cols = (List) rowData; for (int col = 1; col < (cols.size() + 1); col++) { Object colObject = cols.get(col - 1); Widget widget = render.getColumnWidget(colObject); if (widget != null) { widget.setWidth("100%"); widget.setStyleName(STYLE_CELL); if (widget instanceof IBaseField) { setWidget(row + 1, col, ((IBaseField) widget).getBaseField()); } else { setWidget(row + 1, col, widget); } } else { setText(row + 1, col, ""); } } } } // Remove not visible rows. for (int row = (control.getMaxResult().intValue() + 1); row > rows.size(); row--) { if (getRowCount() > row) { removeRow(row); } } } loadListenerCollection.fireOnLoadComplete(CITablePanel.this); } }); } public void addLoadListener(LoadListener listener) { loadListenerCollection.add(listener); } public void setAttributeRender(IAttributeRender render) { this.render = render; } public void onOrderEvent(OrderEvent evnt) { if (evnt.getData() instanceof AttributeValue) { if (getRowCount() > 0) { int cols = getCellCount(0); for (int i = 0; i < cols; i++) { Widget w = getWidget(0, i); if (w != null && !w.equals(evnt.getSender())) { if (w instanceof ColumnHeaderWidget) { ((ColumnHeaderWidget) w).setSortVisable(false); } } } } GWT_AttributeBean aBean = ((AttributeValue) evnt.getData()).getAttributeBean(); if (aBean != null) { this.control.setSortOrder(aBean.getAlias()); this.control.setSortOrderAscending(evnt.isAscending()); } else { this.control.setSortOrder(null); } reload(); } } }