Java tutorial
/******************************************************************************* * Copyright (C) 2015 - Amit Kumar Mondal <admin@amitinside.com> * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *******************************************************************************/ package com.amitinside.e4.rcp.todo.parts; import java.util.List; import javax.annotation.PostConstruct; import javax.inject.Inject; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.e4.core.di.annotations.Optional; import org.eclipse.e4.ui.di.Focus; import org.eclipse.e4.ui.di.UIEventTopic; import org.eclipse.e4.ui.di.UISynchronize; import org.eclipse.e4.ui.model.application.ui.basic.MWindow; import org.eclipse.e4.ui.workbench.modeling.ESelectionService; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.CellEditor; import org.eclipse.jface.viewers.ColumnLabelProvider; import org.eclipse.jface.viewers.EditingSupport; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.TableViewerColumn; import org.eclipse.jface.viewers.TextCellEditor; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.Text; import com.amitinside.e4.rcp.todo.events.MyEventConstants; import com.amitinside.e4.rcp.todo.model.ITodoService; import com.amitinside.e4.rcp.todo.model.Todo; public class ManagerPart { private Button btnNewButton; private Label lblNewLabel; private TableViewer viewer; @Inject UISynchronize sync; @Inject ESelectionService service; @Inject ITodoService model; @PostConstruct public void createControls(Composite parent, final MWindow window) { parent.setLayout(new GridLayout(1, false)); btnNewButton = new Button(parent, SWT.NONE); btnNewButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { Job job = new Job("loading") { @Override protected IStatus run(IProgressMonitor monitor) { List<Todo> list = model.getTodos(); sync.asyncExec(new Runnable() { @Override public void run() { viewer.setInput(model.getTodos()); } }); return Status.OK_STATUS; } }; job.schedule(); } }); btnNewButton.setText("Load Data"); Text search = new Text(parent, SWT.SEARCH | SWT.CANCEL | SWT.ICON_SEARCH); search.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1)); search.setMessage("Filter"); search.addSelectionListener(new SelectionAdapter() { public void widgetDefaultSelected(SelectionEvent e) { if (e.detail == SWT.CANCEL) { Text text = (Text) e.getSource(); text.setText(""); // } } // MORE... }); viewer = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION); Table table = viewer.getTable(); table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1)); table.setHeaderVisible(true); table.setLinesVisible(true); viewer.setContentProvider(ArrayContentProvider.getInstance()); TableViewerColumn column = new TableViewerColumn(viewer, SWT.NONE); column.getColumn().setWidth(100); column.getColumn().setText("Summary"); column.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { Todo todo = (Todo) element; return todo.getSummary(); } }); column.setEditingSupport(new EditingSupport(viewer) { @Override protected void setValue(Object element, Object value) { Todo todo = (Todo) element; todo.setSummary(String.valueOf(value)); viewer.refresh(); } @Override protected Object getValue(Object element) { Todo todo = (Todo) element; return todo.getSummary(); } @Override protected CellEditor getCellEditor(Object element) { return new TextCellEditor(viewer.getTable(), SWT.NONE); } @Override protected boolean canEdit(Object element) { return true; } }); column = new TableViewerColumn(viewer, SWT.NONE); column.getColumn().setWidth(100); column.getColumn().setText("Description"); column.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { Todo todo = (Todo) element; return todo.getDescription(); } }); viewer.addSelectionChangedListener(new ISelectionChangedListener() { @Override public void selectionChanged(SelectionChangedEvent event) { IStructuredSelection selection = (IStructuredSelection) viewer.getSelection(); service.setSelection(selection.getFirstElement()); } }); } @Inject @Optional private void getNotified(@UIEventTopic(MyEventConstants.TOPIC_TODO_ALLTOPICS) String topic) { if (viewer != null) { viewer.setInput(model.getTodos()); } } @Focus private void setFocus() { btnNewButton.setFocus(); } }