tab.java

eclipse中

			public void handleEvent (Event event) {
				eventConsole.copy ();
			}
		});
		MenuItem paste = new MenuItem (popup, SWT.PUSH);
		paste.setText (ControlExample.getResourceString("MenuItem_Paste"));
		paste.addListener (SWT.Selection, new Listener () {
			public void handleEvent (Event event) {
				eventConsole.paste ();
			}
		});
		new MenuItem (popup, SWT.SEPARATOR);
		MenuItem selectAll = new MenuItem (popup, SWT.PUSH);
		selectAll.setText(ControlExample.getResourceString("MenuItem_SelectAll"));
		selectAll.addListener (SWT.Selection, new Listener () {
			public void handleEvent (Event event) {
				eventConsole.selectAll ();
			}
		});
	}

	/**
	 * Creates the "Example" group.  The "Example" group
	 * is typically the left hand column in the tab.
	 */
	void createExampleGroup () {
		exampleGroup = new Group (tabFolderPage, SWT.NONE);
		GridLayout gridLayout = new GridLayout ();
		exampleGroup.setLayout (gridLayout);
		exampleGroup.setLayoutData (new GridData (GridData.FILL_BOTH));
	}
	
	/**
	 * Creates the "Example" widget children of the "Example" group.
	 * Subclasses override this method to create the particular
	 * example control.
	 */
	void createExampleWidgets () {
		/* Do nothing */
	}
	
	/**
	 * Creates and opens the "Listener selection" dialog.
	 */
	void createListenerSelectionDialog () {
		final Shell dialog = new Shell (tabFolderPage.getShell (), SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL);
		dialog.setSize(400, 300);
		dialog.setText (ControlExample.getResourceString ("Select_Listeners"));
		dialog.setLayout (new GridLayout (2, false));
		final Table table = new Table (dialog, SWT.BORDER | SWT.V_SCROLL | SWT.CHECK);
		GridData data = new GridData(GridData.FILL_BOTH);
		data.verticalSpan = 2;
		table.setLayoutData(data);
		for (int i = 0; i < EVENT_NAMES.length; i++) {
			TableItem item = new TableItem (table, SWT.NONE);
			item.setText (EVENT_NAMES[i]);
			item.setChecked (eventsFilter[i]);
		}
		final String [] customNames = getCustomEventNames ();
		for (int i = 0; i < customNames.length; i++) {
			TableItem item = new TableItem (table, SWT.NONE);
			item.setText (customNames[i]);
			item.setChecked (eventsFilter[EVENT_NAMES.length + i]);
		}
		Button selectAll = new Button (dialog, SWT.PUSH);
		selectAll.setText(ControlExample.getResourceString ("Select_All"));
		selectAll.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
		selectAll.addSelectionListener (new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				TableItem [] items = table.getItems();
				for (int i = 0; i < EVENT_NAMES.length; i++) {
					items[i].setChecked(true);
				}
				for (int i = 0; i < customNames.length; i++) {
					items[EVENT_NAMES.length + i].setChecked(true);
				}
			}
		});
		Button deselectAll = new Button (dialog, SWT.PUSH);
		deselectAll.setText(ControlExample.getResourceString ("Deselect_All"));
		deselectAll.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_BEGINNING));
		deselectAll.addSelectionListener (new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				TableItem [] items = table.getItems();
				for (int i = 0; i < EVENT_NAMES.length; i++) {
					items[i].setChecked(false);
				}
				for (int i = 0; i < customNames.length; i++) {
					items[EVENT_NAMES.length + i].setChecked(false);
				}
			}
		});
		Label filler = new Label(dialog, SWT.NONE);
		Button ok = new Button (dialog, SWT.PUSH);
		ok.setText(ControlExample.getResourceString ("OK"));
		dialog.setDefaultButton(ok);
		ok.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
		ok.addSelectionListener (new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				TableItem [] items = table.getItems();
				for (int i = 0; i < EVENT_NAMES.length; i++) {
					eventsFilter[i] = items[i].getChecked();
				}
				for (int i = 0; i < customNames.length; i++) {
					eventsFilter[EVENT_NAMES.length + i] = items[EVENT_NAMES.length + i].getChecked();
				}
				dialog.dispose();
			}
		});
		dialog.pack ();
		dialog.open ();
		while (! dialog.isDisposed()) {
			if (! dialog.getDisplay().readAndDispatch()) dialog.getDisplay().sleep();
		}
	}

	/**
	 * Creates the "Listeners" group.  The "Listeners" group
	 * goes below the "Example" and "Control" groups.
	 */
	void createListenersGroup () {
		listenersGroup = new Group (tabFolderPage, SWT.NONE);
		listenersGroup.setLayout (new GridLayout (3, false));
		GridData gridData = new GridData (GridData.HORIZONTAL_ALIGN_FILL | GridData.FILL_VERTICAL);
		gridData.horizontalSpan = 2;
		listenersGroup.setLayoutData (gridData);
		listenersGroup.setText (ControlExample.getResourceString ("Listeners"));

		/*
		 * Create the button to access the 'Listeners' dialog.
		 */
		Button listenersButton = new Button (listenersGroup, SWT.PUSH);
		listenersButton.setText (ControlExample.getResourceString ("Select_Listeners"));
		listenersButton.addSelectionListener (new SelectionAdapter() {
			public void widgetSelected (SelectionEvent e) {
				createListenerSelectionDialog ();
				recreateExampleWidgets ();
			}
		});
		
		/*
		 * Create the checkbox to add/remove listeners to/from the example widgets.
		 */
		final Button listenCheckbox = new Button (listenersGroup, SWT.CHECK);
		listenCheckbox.setText (ControlExample.getResourceString ("Listen"));
		listenCheckbox.addSelectionListener (new SelectionAdapter () {
			public void widgetSelected(SelectionEvent e) {
				logging = listenCheckbox.getSelection ();
				recreateExampleWidgets ();
			}
		});

		/*
		 * Create the button to clear the text.
		 */
		Button clearButton = new Button (listenersGroup, SWT.PUSH);
		clearButton.setText (ControlExample.getResourceString ("Clear"));
		clearButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_END));
		clearButton.addSelectionListener (new SelectionAdapter() {
			public void widgetSelected (SelectionEvent e) {
				eventConsole.setText ("");
			}
		});
		
		/* Initialize the eventsFilter to log all events. */
		int customEventCount = getCustomEventNames ().length;
		eventsFilter = new boolean [EVENT_NAMES.length + customEventCount];
		for (int i = 0; i < EVENT_NAMES.length + customEventCount; i++) {
			eventsFilter [i] = true;
		}

		/* Create the event console Text. */
		eventConsole = new Text (listenersGroup, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL);
		GridData data = new GridData (GridData.FILL_BOTH);
		data.horizontalSpan = 3;
		data.heightHint = 80;
		eventConsole.setLayoutData (data);
		createEventConsolePopup ();
		eventConsole.addKeyListener (new KeyAdapter () {
			public void keyPressed (KeyEvent e) {
				if ((e.keyCode == 'A' || e.keyCode == 'a') && (e.stateMask & SWT.MOD1) != 0) {
					eventConsole.selectAll ();
					e.doit = false;
				}
			}
		});
	}
	
	void createOrientationGroup () {
		/* Create Orientation group*/
		orientationGroup = new Group (controlGroup, SWT.NONE);
		orientationGroup.setLayout (new GridLayout());
		orientationGroup.setLayoutData (new GridData (GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
		orientationGroup.setText (ControlExample.getResourceString("Orientation"));
		defaultOrietationButton = new Button (orientationGroup, SWT.RADIO);
		defaultOrietationButton.setText (ControlExample.getResourceString("Default"));
		defaultOrietationButton.setSelection (true);
		ltrButton = new Button (orientationGroup, SWT.RADIO);
		ltrButton.setText ("SWT.LEFT_TO_RIGHT");
		rtlButton = new Button (orientationGroup, SWT.RADIO);
		rtlButton.setText ("SWT.RIGHT_TO_LEFT");
	}
	
	/**
	 * Creates the "Size" group.  The "Size" group contains
	 * controls that allow the user to change the size of
	 * the example widgets.
	 */
	void createSizeGroup () {
		/* Create the group */
		sizeGroup = new Group (controlGroup, SWT.NONE);
		sizeGroup.setLayout (new GridLayout());
		sizeGroup.setLayoutData (new GridData (GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
		sizeGroup.setText (ControlExample.getResourceString("Size"));
	
		/* Create the controls */
	
		/*
		 * The preferred size of a widget is the size returned
		 * by widget.computeSize (SWT.DEFAULT, SWT.DEFAULT).
		 * This size is defined on a widget by widget basis.
		 * Many widgets will attempt to display their contents.
		 */
		preferredButton = new Button (sizeGroup, SWT.RADIO);
		preferredButton.setText (ControlExample.getResourceString("Preferred"));
		tooSmallButton = new Button (sizeGroup, SWT.RADIO);
		tooSmallButton.setText (TOO_SMALL_SIZE + " X " + TOO_SMALL_SIZE);
		smallButton = new Button(sizeGroup, SWT.RADIO);
		smallButton.setText (SMALL_SIZE + " X " + SMALL_SIZE);
		largeButton = new Button (sizeGroup, SWT.RADIO);
		largeButton.setText (LARGE_SIZE + " X " + LARGE_SIZE);
		fillButton = new Button (sizeGroup, SWT.RADIO);
		fillButton.setText (ControlExample.getResourceString("Fill"));
	
		/* Add the listeners */
		SelectionAdapter selectionListener = new SelectionAdapter () {
			public void widgetSelected (SelectionEvent event) {
				if (!((Button) event.widget).getSelection ()) return;
				setExampleWidgetSize ();
			};
		};
		preferredButton.addSelectionListener(selectionListener);
		tooSmallButton.addSelectionListener(selectionListener);
		smallButton.addSelectionListener(selectionListener);
		largeButton.addSelectionListener(selectionListener);
		fillButton.addSelectionListener(selectionListener);
	
		/* Set the default state */
		preferredButton.setSelection (true);
	}
	
	/**
	 * Creates the "Style" group.  The "Style" group contains
	 * controls that allow the user to change the style of
	 * the example widgets.  Changing a widget "Style" causes
	 * the widget to be destroyed and recreated.
	 */
	void createStyleGroup () {
		styleGroup = new Group (controlGroup, SWT.NONE);
		styleGroup.setLayout (new GridLayout ());
		styleGroup.setLayoutData (new GridData (GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
		styleGroup.setText (ControlExample.getResourceString("Styles"));
	}
	
	/**
	 * Creates the tab folder page.
	 *
	 * @param tabFolder org.eclipse.swt.widgets.TabFolder
	 * @return the new page for the tab folder
	 */
	Composite createTabFolderPage (TabFolder tabFolder) {
		/*
		* Create a two column page.
		*/
		tabFolderPage = new Composite (tabFolder, SWT.NONE);
		tabFolderPage.setLayout (new GridLayout (2, false));
	
		/* Create the "Example" and "Control" groups. */
		createExampleGroup ();
		createControlGroup ();
		
		/* Create the "Listeners" group under the "Control" group. */
		createListenersGroup ();
		
		/* Create and initialize the example and control widgets. */
		createExampleWidgets ();
		hookExampleWidgetListeners ();
		createControlWidgets ();
		setExampleWidgetState ();
		
		return tabFolderPage;
	}
	
	/**
	 * Disposes the "Example" widgets.
	 */
	void disposeExampleWidgets () {
		Control [] controls = getExampleWidgets ();
		for (int i=0; i<controls.length; i++) {
			controls [i].dispose ();
		}
	}
	
	void drawImage (Image image, Color color) {
		GC gc = new GC(image);
		gc.setBackground(color);
		Rectangle bounds = image.getBounds();
		gc.fillRectangle(0, 0, bounds.width, bounds.height);
		gc.drawRectangle(0, 0, bounds.width - 1, bounds.height - 1);
		gc.dispose();
	}
	
	/**
	 * Gets the list of custom event names.