TableViewer学习源码

package wei.learn.tableViewer; import java.util.regex.Pattern; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.action.ToolBarManager; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.viewers.CellEditor; import org.eclipse.jface.viewers.CheckboxCellEditor; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.ColumnWeightData; import org.eclipse.jface.viewers.ComboBoxCellEditor; import org.eclipse.jface.viewers.DoubleClickEvent; import org.eclipse.jface.viewers.IDoubleClickListener; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.TableLayout; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.TextCellEditor; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.ViewForm; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.VerifyEvent; import org.eclipse.swt.events.VerifyListener; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableColumn; import org.eclipse.swt.widgets.Text; import org.eclipse.swt.widgets.ToolBar; public class TableViewerShell extends Shell { public static String[] NAMES = { "魏亚军", "小明", "小刚", "小张","魏亚军2","魏亚军3" }; /** * Launch the application. * * @param args */ public static void main(String args[]) { try { Display display = Display.getDefault(); TableViewerShell shell = new TableViewerShell(display); shell.open(); shell.setLayout(new FillLayout()); shell.layout(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) { display.sleep(); } } } catch (Exception e) { e.printStackTrace(); } } /** * Create the shell. * * @param display */ public TableViewerShell(Display display) { super(display, SWT.SHELL_TRIM); createContents(); } /** * Create contents of the shell. */ protected void createContents() { setText("SWT Application"); setSize(450, 300); // 增加布局基座viewForm ViewForm viewForm = new ViewForm(this, SWT.NONE); viewForm.setLayoutData(new FillLayout()); // 1. 创建一个TableViewer final TableViewer viewer = new TableViewer(viewForm, SWT.MULTI | SWT.BORDER | SWT.FULL_SELECTION | SWT.CHECK); final CheckboxTableViewer ctv = new CheckboxTableViewer( viewer.getTable()); // 2. 通过TableViewer内含有的Table对象设置布局方式 Table table = viewer.getTable(); table.setHeaderVisible(true); // 显示头 table.setLinesVisible(true); // 显示表格线 TableLayout layout = new TableLayout(); table.setLayout(layout); // 专用于表格的布局 // 3. 用TableColumn类创建表格列 layout.addColumnData(new ColumnWeightData(13)); // ID列宽13个像素 TableColumn col1 = new TableColumn(table, SWT.NONE); col1.setText("ID号"); col1.addSelectionListener(new SelectionAdapter() { boolean asc = true; // 记录上一次的排序方式，默认为升序 @Override public void widgetSelected(SelectionEvent e) { // asc=true则ID的升序排序器，否则用降序 viewer.setSorter(asc ? MySorter.ID_ASC : MySorter.ID_DESC); asc = !asc;// 得到下一次排序方式 } }); layout.addColumnData(new ColumnWeightData(20)); TableColumn col2 = new TableColumn(table, SWT.NONE); col2.setText("姓名"); col2.addSelectionListener(new SelectionAdapter() { boolean asc = true; // 记录上一次的排序方式，默认为升序 @Override public void widgetSelected(SelectionEvent e) { // asc=true则ID的升序排序器，否则用降序 viewer.setSorter(asc ? MySorter.NAME_ASC : MySorter.NAME_DESC); asc = !asc;// 得到下一次排序方式 } }); layout.addColumnData(new ColumnWeightData(20)); new TableColumn(table, SWT.NONE).setText("性别"); layout.addColumnData(new ColumnWeightData(20)); new TableColumn(table, SWT.NONE).setText("年龄"); layout.addColumnData(new ColumnWeightData(60)); new TableColumn(table, SWT.NONE).setText("记录建立时间"); // 4. 用TableViewer设置内容器和标签器 viewer.setContentProvider(new TableViewerContentProvider()); viewer.setLabelProvider(new TableViewerLableProvider()); // 5. 用TableViewer的setInput方法将数据输入到表格中 Object data = PeopleFactory.getPeoples(); viewer.setInput(data); // 设置编辑组件CellEditor viewer.setColumnProperties(new String[] { "id", "name", "sex", "age", "date" }); // 设置每一列的单元格编辑组件CellEditor CellEditor[] cellEditors = new CellEditor[5]; cellEditors[0] = null; cellEditors[1] = new ComboBoxCellEditor(viewer.getTable(), NAMES, SWT.READ_ONLY); cellEditors[2] = new CheckboxCellEditor(viewer.getTable()); cellEditors[3] = new TextCellEditor(viewer.getTable()); cellEditors[4] = null; viewer.setCellEditors(cellEditors); // 设置表格的修改器MyCellModifier viewer.setCellModifier(new MyCellModifier(viewer)); Text text = (Text) cellEditors[3].getControl();// 设置第4列只能输入数值 text.addVerifyListener(new VerifyListener() { // 以下代码说明参阅第8.4节“文本框”，完全一样 public void verifyText(VerifyEvent e) { String inStr = e.text; if (inStr.length() > 0) { e.doit = isInteger(inStr); } } public boolean isInteger(String str) { Pattern pattern = Pattern.compile("^[-\\+]?[\\d]*$"); return pattern.matcher(str).matches(); } }); addListener(viewer); // 6. 向TableViewer注入action MyActionGroup actionGroup = new MyActionGroup(viewer, ctv); actionGroup.fillContextMenu(new MenuManager()); // 创建工具栏 ToolBar toolBar = new ToolBar(viewForm, SWT.FLAT); // 创建一个ToolBar容器 ToolBarManager toolBarManager = new ToolBarManager(toolBar); // 创建一个toolbar的管理器 // 将Action通过toolBarManager注入toolBar中 actionGroup.fillActionToolBars(toolBarManager); // 设置表格和工具栏在布局中的位置 viewForm.setContent(viewer.getControl()); // 主体:表格 viewForm.setTopLeft(toolBar); } private void addListener(TableViewer viewer) { viewer.addDoubleClickListener(new IDoubleClickListener() { public void doubleClick(DoubleClickEvent event) { // 得到表格的选择对象，里面封装了表格中被选择的记录信息 IStructuredSelection selection = (IStructuredSelection) event .getSelection(); // 得到所选择的第一条实体对象（表格可以有多选），并进行类型转换 PeopleEntity p = (PeopleEntity) selection.getFirstElement(); // 弹出一个提示框 MessageDialog.openInformation(null, "提示", p.getName()); } }); viewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { // 事件处理代码……（略） } }); } @Override protected void checkSubclass() { // Disable the check that prevents subclassing of SWT components } }