自己的通用的表格
建立了一个自己的通用的表格：
a)Comp为Table的父亲，在这个上面建table，class是要显示的实体类，ignoreList中，如果和class的filed名字一样就不建立这个列。
b）列隐藏伸展
c）显示默认就对应类的Field的toString
d）上下自动滚动。
e）Ctrl+鼠标滚动列。
f）当点击Table的其他位置的时候，就是没有Item的位置的时候，取消所以的选择。
g）列的Properties就是列的Class的Field。（还不知道Properties有用否）
代码：
public class MyTable {private static String RESTORE_COL_WIDTH = "restoredWidth";private TableViewerv;private Tablet;private MenuManager tableContextMenu;private List<String> ignoreList;private List<String>propertis;private Map<String,TableViewerColumn> columMap = new HashMap<String,TableViewerColumn>();/* * for auto scroll */private Runnable Heartbeat;private boolean Tracking;private int ScrollSpeed = 400;public MyTable(Composite comp, Class<?> clazz) {createTable(comp,clazz);}public MyTable(Composite comp, Class<?> clazz, List<String> ignoreList) {this.ignoreList = ignoreList;createTable(comp,clazz);}private void createTable(Composite comp, Class<?> clazz) {v = new TableViewer(comp, SWT.FULL_SELECTION | SWT.MULTI);t = v.getTable();t.setLinesVisible(true);t.setHeaderVisible(true);v.setContentProvider(new MyContentProvider());getPropertis(clazz);v.setColumnProperties(propertis.toArray(new String[0]));createColumn();setTableMenu();addVerticalAutoScroll();addCtrlScroll();addDesWhenNull();v.setInput(new TableData());}private void addDesWhenNull() {/* * deselectAll when mouse click a space in table. */t.addMouseListener(new MouseAdapter() {public void mouseDown(MouseEvent e) {if(t.getItem(new Point(e.x,e.y)) == null ) {t.deselectAll();}}});}private void addCtrlScroll() {t.addMouseWheelListener(new MouseWheelListener() {public void mouseScrolled(MouseEvent e) {if (e.stateMask == SWT.CTRL) {/* * using getClientArea().width, hBar.getSelection(), e.count to calc * which column to show. * t.showColumn(); */ScrollBar hBar = t.getHorizontalBar();if(hBar != null) {TableColumn col = getShowColumn(hBar,e.count);if(col != null)t.showColumn(col);}}}private TableColumn getShowColumn(ScrollBar hBar, int count) {TableColumn col;TableColumn[] cols = t.getColumns();int totalWidth = t.getBounds().width;int hBarLeft = hBar.getSelection();int hBarRight = hBar.getMaximum() - hBar.getThumb() - hBar.getSelection();if(count > 0) {int colsWidth = 0 - hBarRight;for(int i=cols.length-1; i > -1; i--) {col = cols[i];colsWidth += col.getWidth();if(colsWidth > totalWidth)return col;}} else {int colsWidth = 0 - hBarLeft;for(int i=0; i < cols.length; i++) {col = cols[i];colsWidth += col.getWidth();if(colsWidth > totalWidth)return col;}}return null;}});}private void addVerticalAutoScroll() {/* * swt.snippets.Snippet221 */Heartbeat = new Runnable() {public void run() {if(!Tracking || t.isDisposed()) return;Point cursor = Display.getCurrent().getCursorLocation();cursor = Display.getCurrent().map(null, t, cursor);Scroll(t, cursor);Display.getCurrent().timerExec(ScrollSpeed, Heartbeat);}private void Scroll(Table t, Point cursor) {TableItem item = t.getItem(cursor);if (item == null) return;int index = t.indexOf(item);if(index == 0 || index == t.getItemCount()-1)return;Rectangle area = t.getClientArea();int headerHeight = t.getHeaderHeight();int itemHeight= t.getItemHeight();if (cursor.y < area.y + headerHeight + 2 * itemHeight) {// mouse in the first or second item.index --;}if (cursor.y > area.y + area.height - 2 * itemHeight) {// mouse in the last first or second item.index ++;}if(index>-1 && index<t.getItemCount())t.showItem(t.getItem(index));}};Listener listener = new Listener() {public void handleEvent(Event event) {switch (event.type) {case SWT.MouseEnter:Tracking = true;Display.getCurrent().timerExec(0, Heartbeat);break;case SWT.MouseExit:Tracking = false;break;}}};t.addListener(SWT.MouseEnter, listener); t.addListener(SWT.MouseExit, listener);}private void setTableMenu() {final MenuManager headerMenu = new MenuManager();addAction2HeaderMenu(headerMenu);t.addListener(SWT.MenuDetect, new Listener() {public void handleEvent(Event event) {Point pt = Display.getCurrent().map(null, t, new Point(event.x, event.y));Rectangle clientArea = t.getClientArea();boolean header = clientArea.y <= pt.y && pt.y < (clientArea.y + t.getHeaderHeight());if(header) {t.setMenu(headerMenu.createContextMenu(t));} else {if(tableContextMenu != null)t.setMenu(tableContextMenu.createContextMenu(t));}}});}private void addAction2HeaderMenu(MenuManager menu) {Action action;for(int i = 0; i < t.getColumnCount(); i++ ) {final TableColumn column = t.getColumn(i);action = new Action(t.getColumn(i).getText(),SWT.CHECK) {public void run() {if(!isChecked()) {ShrinkThread t = new ShrinkThread(column.getWidth(),column);t.run();} else {ExpandThread t = new ExpandThread(((Integer)column.getData(RESTORE_COL_WIDTH)).intValue(),column);t.run();}}};action.setChecked(true);menu.add(action);}}private void createColumn() {for(String property : propertis) {TableViewerColumn column = new TableViewerColumn(v, SWT.NONE);column.getColumn().setWidth(200);column.getColumn().setText(property);column.getColumn().setMoveable(true);column.setLabelProvider(new MyColumnLabelProvider(property));columMap.put(property, column);}}public List<String> getPropertis() {return propertis;}private void getPropertis(Class<?> clazz) {propertis = new ArrayList<String>();String name;for(Field f : clazz.getDeclaredFields()) {name = f.getName();if(!ignoreList.contains(name))propertis.add(f.getName());}}public void add(Object o) {((TableData)v.getInput()).add(o);}public void remove(Object o) {((TableData)v.getInput()).remove(o);}public void removeAll() {v.setInput(new TableData());}public void setColumnWidth(int width) {for(TableColumn col : v.getTable().getColumns())col.setWidth(width);}public void setColumnWidth(int[] widths) {int min = Math.min(widths.length, t.getColumnCount());for(int i=0; i<min; i++) {t.getColumn(i).setWidth(widths[i]);}}public void setColumnName(String[] names) {int min = Math.min(names.length, t.getColumnCount());for(int i=0; i<min; i++) {t.getColumn(i).setText(names[i]);}}public TableViewerColumn getTableViewerColumn(String property) {return columMap.get(property);}public void setColumnLabelProvider(String property,ColumnLabelProvider columnLabelProvider) {columMap.get(property).setLabelProvider(columnLabelProvider);}public void setContextMenu(MenuManager menu) {tableContextMenu = menu;}public TableViewer getTableViewer() {return v;}/** * column shrink */private class ShrinkThread extends Thread {private int width = 0;private TableColumn column;public ShrinkThread(int width, TableColumn column) {super();this.width = width;this.column = column;}public void run() {column.getDisplay().syncExec(new Runnable() {public void run() {column.setData(RESTORE_COL_WIDTH, new Integer(width));}});for(int i = width; i >= 0; i--) {final int index = i;column.getDisplay().syncExec(new Runnable() {public void run() {column.setWidth(index);}});}column.setResizable(false);}};/** * column Expand */private class ExpandThread extends Thread {private int width = 0;private TableColumn column;public ExpandThread(int width, TableColumn column) {super();this.width = width;this.column = column;}public void run() {for(int i = 0; i <= width; i++) {final int index = i;column.getDisplay().syncExec(new Runnable() {public void run() {column.setWidth(index);}});}column.setResizable(true);}}private class MyContentProvider implements IStructuredContentProvider ,PropertyChangeListener{private TableViewer viewer;public Object[] getElements(Object inputElement) {if(inputElement instanceof TableData)return ((TableData)inputElement).elements();return null;}public void dispose() {}public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {this.viewer = (TableViewer) viewer;if (oldInput instanceof TableData)((TableData) oldInput).removePropertyChangeListener(this);if (newInput instanceof TableData) {((TableData) newInput).addPropertyChangeListener(this);}}public void propertyChange(PropertyChangeEvent event) {if (TableData.ADD_ELEMENT.equals(event.getPropertyName()))viewer.add(event.getNewValue());if (TableData.REMOVE_ELEMENT.equals(event.getPropertyName()))viewer.remove(event.getNewValue());}}private class MyColumnLabelProvider extends ColumnLabelProvider {private String FieldName;public MyColumnLabelProvider(String columnText) {super();this.FieldName = columnText;}public String getText(Object element) {Object o = getClassFieldContent(element, FieldName);return o == null ?"":o.toString();}private Object getClassFieldContent(Object obj, String fieldName) {Object o = null;for(Field f : obj.getClass().getDeclaredFields()) {if(f.getName().equals(fieldName)) {f.setAccessible(true);try {o = f.get(obj);} catch (IllegalArgumentException e) {e.printStackTrace();} catch (IllegalAccessException e) {e.printStackTrace();}}}return o;}}}abstract class ColumnViewerSorter extends ViewerComparator {public static final int ASC = 1;public static final int NONE = 0;public static final int DESC = -1;private int direction = 0;private TableViewerColumn column;private ColumnViewer viewer;private String property;public ColumnViewerSorter(ColumnViewer viewer, TableViewerColumn column, String property) {this.column = column;this.viewer = viewer;this.property = property;this.column.getColumn().addSelectionListener(new SelectionAdapter() {public void widgetSelected(SelectionEvent e) {if( ColumnViewerSorter.this.viewer.getComparator() != null ) {if( ColumnViewerSorter.this.viewer.getComparator() == ColumnViewerSorter.this ) {int tdirection = ColumnViewerSorter.this.direction;if( tdirection == ASC ) {setSorter(ColumnViewerSorter.this, DESC);} else if( tdirection == DESC ) {setSorter(ColumnViewerSorter.this, NONE);}} else {setSorter(ColumnViewerSorter.this, ASC);}} else {setSorter(ColumnViewerSorter.this, ASC);}}});}public void setSorter(ColumnViewerSorter sorter, int direction) {if( direction == NONE ) {column.getColumn().getParent().setSortColumn(null);column.getColumn().getParent().setSortDirection(SWT.NONE);viewer.setComparator(null);} else {column.getColumn().getParent().setSortColumn(column.getColumn());sorter.direction = direction;if( direction == ASC ) {column.getColumn().getParent().setSortDirection(SWT.DOWN);} else {column.getColumn().getParent().setSortDirection(SWT.UP);}if( viewer.getComparator() == sorter ) {viewer.refresh();} else {viewer.setComparator(sorter);}}}public int compare(Viewer viewer, Object e1, Object e2) {return direction * doCompare(e1, e2, property);}protected abstract int doCompare(Object e1, Object e2, String property);}?
?
表格数据类代码：
public class TableData {public static final String ADD_ELEMENT = "add Element";public static final String REMOVE_ELEMENT = "remove Element";private PropertyChangeSupport delegate;private Vector<Object> content;public TableData() {content = new Vector<Object>();delegate = new PropertyChangeSupport(this);}public void addPropertyChangeListener(PropertyChangeListener listener) {delegate.addPropertyChangeListener(listener);}public void firePropertyChange(PropertyChangeEvent event) {delegate.firePropertyChange(event);}public void removePropertyChangeListener(PropertyChangeListener listener) {delegate.removePropertyChangeListener(listener);}public void add(Object element) {if(content.contains(element))return;if(content.add(element))firePropertyChange(new PropertyChangeEvent(this, ADD_ELEMENT, null,element));}public void remove(Object element) {if (content.remove(element))firePropertyChange(new PropertyChangeEvent(this, REMOVE_ELEMENT, null, element));}public Object[] elements() {return content.toArray();}public void printInfo() {for(Object o : content)System.out.println(o);}}?
?
测试代码：
public class MyTableTst {private static Shell shell;public MyTableTst(Shell shell) {MyTable table = new MyTable(shell,MyModel.class,Arrays.asList(new String[]{"serialVersionUID","xx_dialog2"}));/* * add and remove object */Object o = new MyModel(2);table.add(o);table.add(new MyModel(4));table.add(new MyModel(55));for(int i=0; i<30; i++)table.add(new MyModel(4));o = new MyModel(3);table.add(o);table.remove(o);/* * set column width and text */table.setColumnWidth(300);//table.setColumnWidth(new int[]{100,100,150,160,100});table.setColumnName(new String[]{"text","id","boolean","b","e"});/* * set context menu */table.setContextMenu(CreateContextMenu(table.getTableViewer()));/* * reset column label provider */for(String property : table.getPropertis()) {table.setColumnLabelProvider(property,new ChangedColumnLabelProvider(property));}table.getTableViewer().refresh();/* * set sort to the table */for(String property : table.getPropertis()) {new ColumnViewerSorter(table.getTableViewer(),table.getTableViewerColumn(property),property) {protected int doCompare(Object e1, Object e2, String property) {if(e1 instanceof MyModel)return ((MyModel)e1).doCompare((MyModel)e2, property);return 0;}};}/* * add filter */table.getTableViewer().addFilter(new ViewerFilter() {public boolean select(Viewer viewer, Object parentElement, Object element) {/* * viewer - TableViewer * parentElement - TableData * element - MyModel */if(element instanceof MyModel)return ((MyModel)element).filter();return true;}});/* * add EditingSupport */TableViewerColumn column = table.getTableViewerColumn("xx_Text_String");column.setEditingSupport(new AbstractEditingSupport(table.getTableViewer()) {protected Object getValue(Object element) {return ((MyModel) element).xx_Text_String;}protected void doSetValue(Object element, Object value) {((MyModel) element).xx_Text_String = value.toString();}});}private MenuManager CreateContextMenu(TableViewer v) {MenuManager menu = new MenuManager();menu.add(CeActionFactory.getDelAction(v));return menu;}public static void main(String[] args) {Display display = new Display ();shell = new Shell(display);shell.setLayout(new FillLayout());new MyTableTst(shell);shell.open ();while (!shell.isDisposed ()) {if (!display.readAndDispatch ()) display.sleep ();}display.dispose ();}protected abstract class AbstractEditingSupport extends EditingSupport {private TextCellEditor editor;public AbstractEditingSupport(TableViewer viewer) {super(viewer);this.editor = new TextCellEditor(viewer.getTable());}protected boolean canEdit(Object element) {return true;}protected CellEditor getCellEditor(Object element) {return editor;}protected void setValue(Object element, Object value) {doSetValue(element, value);getViewer().update(element, null);}protected abstract void doSetValue(Object element, Object value);}}class MyModel {protectedint xx_Text_int= 1;protected long longT = 1111111111L;protectedboolean xx_Boolean= true;protectedboolean Ignorable_Boolean= true;public String xx_Text_String= "a string";protected List<String> list_dialog1 = Arrays.asList(new String[]{"list1","list2"}); //端口或者引脚 Clock sources ports or pinsprotected String xx_dialog2 = "dialog2"; protected String xx_Combo_list1 = ""; public MyModel() {}public MyModel(int i) {xx_Text_int = i;}/* * false - filter. * true - display. */public boolean filter() {if(xx_Text_int == 5)return false;return true;}public int doCompare(MyModel model, String field) {if(field.equals("xx_Text_int"))return ((Integer)this.xx_Text_int).compareTo((Integer)model.xx_Text_int);if(field.equals("longT"))return ((Long)this.longT).compareTo((Long)model.longT);if(field.equals("xx_Boolean"))return ((Boolean)this.xx_Boolean).compareTo((Boolean)model.xx_Boolean);if(field.equals("Ignorable_Boolean"))return ((Boolean)this.Ignorable_Boolean).compareTo((Boolean)model.Ignorable_Boolean);if(field.equals("xx_Text_String"))return this.xx_Text_String.compareTo(model.xx_Text_String);if(field.equals("list_dialog1"))return ((Integer)this.list_dialog1.size()).compareTo((Integer)model.list_dialog1.size());if(field.equals("xx_dialog2"))return this.xx_dialog2.compareTo(model.xx_dialog2);if(field.equals("xx_Combo_list1"))return this.xx_Combo_list1.compareTo(model.xx_Combo_list1);return 0;}}class ChangedColumnLabelProvider extends ColumnLabelProvider {private String columnText;public ChangedColumnLabelProvider(String columnText) {super();this.columnText = columnText;}public Image getImage(Object element) {return Display.getCurrent().getSystemImage(SWT.ICON_WARNING);}public Font getFont(Object element) {return JFaceResources.getFont(JFaceResources.HEADER_FONT);}public Color getBackground(Object element) {return Display.getCurrent().getSystemColor(SWT.COLOR_GRAY);}public Color getForeground(Object element) {return Display.getCurrent().getSystemColor(SWT.COLOR_GREEN);}public String getText(Object element) {Object o = getClassFieldContent(element, columnText);return o == null ?"":o.toString();}private Object getClassFieldContent(Object obj, String fieldName) {Object o = null;for(Field f : obj.getClass().getDeclaredFields()) {if(f.getName().equals(fieldName)) {f.setAccessible(true);try {o = f.get(obj);} catch (IllegalArgumentException e) {e.printStackTrace();} catch (IllegalAccessException e) {e.printStackTrace();}}}return o;}public void dispose(ColumnViewer viewer, ViewerColumn column) {super.dispose(viewer, column);}}class CeActionFactory {public static Action getDelAction(final TableViewer v) {Action action = new Action("Del") {public void run() {v.getTable().remove(v.getTable().getSelectionIndices());}};action.setImageDescriptor(ImageDescriptor.createFromImage(Display.getCurrent().getSystemImage(SWT.ICON_ERROR)));return action;}}?
?
测试了功能：
a)可设置列的默认宽，可设置每一列的宽。可改变列的名字。
b)可设置Table上下文的菜单。
c)可以添加，删除，删除所有。
d)可以接受更改columnLabelProvide。
e)编辑，是不是用editorsupport更方便，看看。
f)Sort扩展。
g)Filter。
?