Java tutorial
/* * Copyright (c) 2009-2012, 2015 Eike Stepper (Berlin, Germany) and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Eike Stepper - initial API and implementation * * Initial Publication: * Eclipse Magazin - http://www.eclipse-magazin.de */ package org.gastro.rcp.internal.department; import org.eclipse.emf.common.notify.Adapter; import org.eclipse.emf.common.notify.AdapterFactory; import org.eclipse.emf.common.notify.Notification; import org.eclipse.emf.common.notify.impl.AdapterImpl; import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider; import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider.FontAndColorProvider; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.viewers.TreeViewerColumn; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Tree; import org.eclipse.swt.widgets.TreeColumn; import org.eclipse.ui.part.ViewPart; import com.swtdesigner.ResourceManager; import com.swtdesigner.SWTResourceManager; import org.gastro.business.BusinessDay; import org.gastro.business.Order; import org.gastro.business.OrderDetail; import org.gastro.business.OrderState; import org.gastro.inventory.Department; import org.gastro.inventory.Product; import org.gastro.rcp.IModel; import org.gastro.rcp.IModel.ITransactionalOperation; import java.text.NumberFormat; import java.util.ArrayList; import java.util.List; /** * @author Eike Stepper */ public class OrdersView extends ViewPart { public static final String ID = "org.gastro.rcp.orders.view"; private static final AdapterFactory FACTORY = IModel.INSTANCE.getAdapterFactory(); private TreeViewer treeViewer; private Adapter businessDayAdapter = new AdapterImpl() { @Override public void notifyChanged(Notification msg) { try { treeViewer.getTree().getDisplay().asyncExec(new Runnable() { public void run() { try { treeViewer.refresh(true); treeViewer.expandAll(); } catch (Exception ex) { } } }); } catch (Exception ex) { } } }; public OrdersView() { } /** * Passing the focus request to the viewer's control. */ @Override public void setFocus() { } @Override public void dispose() { IModel.INSTANCE.getBusinessDay().eAdapters().remove(businessDayAdapter); super.dispose(); } /** * This is a callback that will allow us to create the viewer and initialize it. */ @Override public void createPartControl(Composite parent) { BusinessDay businessDay = IModel.INSTANCE.getBusinessDay(); businessDay.eAdapters().add(businessDayAdapter); { treeViewer = new TreeViewer(parent, SWT.NONE); treeViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { Object object = ((IStructuredSelection) event.getSelection()).getFirstElement(); if (object instanceof OrderDetail) { OrderDetail orderDetail = (OrderDetail) object; IModel.INSTANCE.modify(orderDetail, new ITransactionalOperation<OrderDetail>() { public Object execute(OrderDetail orderDetail) { orderDetail .setState(orderDetail.getState() == OrderState.ORDERED ? OrderState.SERVED : OrderState.ORDERED); return null; } }); treeViewer.refresh(true); } } }); Tree tree = treeViewer.getTree(); tree.setToolTipText("Klicken um Zustand zu wechseln"); tree.setForeground(SWTResourceManager.getColor(SWT.COLOR_DARK_BLUE)); tree.setFont(SWTResourceManager.getFont("Segoe UI", 16, SWT.BOLD)); { TreeViewerColumn treeViewerColumn = new TreeViewerColumn(treeViewer, SWT.NONE); TreeColumn trclmnTitel = treeViewerColumn.getColumn(); trclmnTitel.setToolTipText("Klicken um Zustand zu wechseln"); trclmnTitel.setWidth(400); trclmnTitel.setText("Angebot"); } { TreeViewerColumn treeViewerColumn = new TreeViewerColumn(treeViewer, SWT.NONE); TreeColumn trclmnQuantity = treeViewerColumn.getColumn(); trclmnQuantity.setResizable(false); trclmnQuantity.setAlignment(SWT.RIGHT); trclmnQuantity.setWidth(50); trclmnQuantity.setText("Menge"); } { TreeViewerColumn treeViewerColumn = new TreeViewerColumn(treeViewer, SWT.NONE); TreeColumn trclmnPreis = treeViewerColumn.getColumn(); trclmnPreis.setAlignment(SWT.RIGHT); trclmnPreis.setResizable(false); trclmnPreis.setWidth(100); trclmnPreis.setText("Preis"); } { TreeViewerColumn treeViewerColumn = new TreeViewerColumn(treeViewer, SWT.NONE); TreeColumn trclmnSumme = treeViewerColumn.getColumn(); trclmnSumme.setAlignment(SWT.RIGHT); trclmnSumme.setResizable(false); trclmnSumme.setWidth(100); trclmnSumme.setText("Summe"); } treeViewer.setContentProvider(new AdapterFactoryContentProvider(FACTORY) { @Override public Object[] getElements(Object object) { return getChildren(object); } @Override public Object[] getChildren(Object object) { Department department = (Department) IModel.INSTANCE.getStation(); if (object instanceof BusinessDay) { BusinessDay businessDay = (BusinessDay) object; List<Object> result = new ArrayList<Object>(); for (Order order : businessDay.getOrders()) { for (OrderDetail orderDetail : order.getOrderDetails()) { if (orderDetail.getState() == OrderState.ORDERED) { Product product = orderDetail.getOffering().getProduct(); if (product != null) { if (product.getDepartment() != department) { continue; } } result.add(order); break; } } } return result.toArray(); } if (object instanceof Order) { Order order = (Order) object; List<Object> result = new ArrayList<Object>(); for (OrderDetail orderDetail : order.getOrderDetails()) { Product product = orderDetail.getOffering().getProduct(); if (product == null || product.getDepartment() == department) { result.add(orderDetail); } } return result.toArray(); } return super.getChildren(object); } @Override public boolean hasChildren(Object object) { return getChildren(object).length != 0; } }); treeViewer.setLabelProvider(new FontAndColorProvider(FACTORY, treeViewer) { @Override public String getColumnText(Object object, int columnIndex) { if (object instanceof Order) { Order order = (Order) object; switch (columnIndex) { case 0: return order.getTable().getStationID(); case 1: case 2: case 3: return ""; } } if (object instanceof OrderDetail) { OrderDetail orderDetail = (OrderDetail) object; switch (columnIndex) { case 0: return orderDetail.getOffering().getName(); case 1: return "" + orderDetail.getQuantity() + "x"; case 2: return formatPrice(orderDetail.getOffering().getPrice()); case 3: return formatPrice(orderDetail.getOffering().getPrice() * orderDetail.getQuantity()); } } return super.getColumnText(object, columnIndex); } @Override public Image getColumnImage(Object object, int columnIndex) { if (columnIndex == 0 && object instanceof OrderDetail) { OrderDetail orderDetail = (OrderDetail) object; if (orderDetail.getState() == OrderState.ORDERED) { return ResourceManager.getPluginImage("org.gastro.rcp.department", "icons/ordered.gif"); } return ResourceManager.getPluginImage("org.gastro.rcp.department", "icons/served.gif"); } return null; } @Override public Color getForeground(Object object, int columnIndex) { if (object instanceof OrderDetail) { OrderDetail orderDetail = (OrderDetail) object; if (orderDetail.getState() != OrderState.ORDERED) { return treeViewer.getTree().getDisplay().getSystemColor(SWT.COLOR_GRAY); } } return super.getForeground(object, columnIndex); } private String formatPrice(float price) { return NumberFormat.getCurrencyInstance().format(price); } }); treeViewer.setInput(businessDay); treeViewer.expandAll(); } } }