org.eclipse.jface.viewers.ArrayContentProvider#org.eclipse.swt.widgets.Event源码实例Demo

/**
 * 添加标记样式改变监听 ;
 */
private void addTagStyleChangeListener() {
	final TagStyleManager tagStyleManager = xliffEditor.getTagStyleManager();
	final Listener tagStyleChangeListener = new Listener() {
		public void handleEvent(Event event) {
			if (event.data != null && event.data instanceof TagStyle) {
				viewer.setTagStyle((TagStyle) event.data);
			}
		}
	};
	tagStyleManager.addTagStyleChangeListener(tagStyleChangeListener);

	viewer.getTextWidget().addDisposeListener(new DisposeListener() {
		public void widgetDisposed(DisposeEvent e) {
			tagStyleManager.removeTagStyleChangeListener(tagStyleChangeListener);
		}
	});
}
 

private void renderTransparency(final Shell shell) {
	Group group = new Group(shell, SWT.NONE);
	group.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false, 6, 1));
	group.setLayout(new GridLayout(1, false));
	group.setText("Transparency");
	final Scale transparencySlider = new Scale(group, SWT.HORIZONTAL);
	transparencySlider.setMinimum(20);
	transparencySlider.setMaximum(100);
	transparencySlider.setPageIncrement(90);
	transparencySlider.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
	transparencySlider.setSelection(100);
	transparencySlider.addListener(SWT.Selection, new Listener() {

		@Override
		public void handleEvent(Event event) {
			shell.setAlpha(255 * transparencySlider.getSelection() / 100);
		}
	});
}
 

@Override
public void initialize(Canvas canvas) {
	super.initialize(canvas);

	drawCanvas.addPaintListener(new PaintListener() {
	@Override
	public void paintControl(PaintEvent e) {
		if (bufferImage != null && !bufferImage.isDisposed()) {
			Rectangle bounds = bufferImage.getBounds();
			if (bounds.width >= ( e.width + e.x ) && bounds.height >= ( e.height + e.y )) {

				e.gc.drawImage(bufferImage, e.x, e.y, e.width, e.height, e.x, e.y,
						e.width, e.height);
			}
		}
	}
});

	drawCanvas.addListener(SWT.Resize, new Listener() {
	@Override
	public void handleEvent(Event event) {
		drawChart(true);
	}
});
}
 

@Override
public void handleEvent(Event event) {
  if (event.widget == addButton) {
    handleAdd();
  } else if (event.widget == removeButton
          || (event.type == SWT.KeyUp && event.character == SWT.DEL)) {
    handleRemove();
  } else if (event.widget == editButton || event.type == SWT.MouseDoubleClick) {
    handleEdit();
  }
  // else if (event.type == SWT.MouseDown && event.button == 3) {
  // handleTableContextMenuRequest(event);
  // }
  else if (event.type == SWT.MouseHover) {
    handleTableHoverHelp(event);
  } else if (event.type == SWT.Selection) {
    editor.getResourcesPage().getResourceBindingsSection().enable();
  }
  enable();
}
 

private static void click(final MenuItem menuItem) {
  final Event event = new Event();
  event.time = (int) System.currentTimeMillis();
  event.widget = menuItem;
  event.display = menuItem.getDisplay();
  event.type = SWT.Selection;

  UIThreadRunnable.asyncExec(
      menuItem.getDisplay(),
      new VoidResult() {
        @Override
        public void run() {
          menuItem.notifyListeners(SWT.Selection, event);
        }
      });
}
 

public static void handleEvent(Event e)
{
	IBindingService bindingService = (IBindingService) PlatformUI.getWorkbench().getAdapter(IBindingService.class);

	Listener keyDownFilter = ((BindingService) bindingService).getKeyboard().getKeyDownFilter();
	boolean enabled = bindingService.isKeyFilterEnabled();
	Control focusControl = e.display.getFocusControl();
	try
	{
		bindingService.setKeyFilterEnabled(true);
		keyDownFilter.handleEvent(e);
	}
	finally
	{
		if (focusControl == e.display.getFocusControl()) // $codepro.audit.disable useEquals
		{
			bindingService.setKeyFilterEnabled(enabled);
		}
	}
}
 

@Override
public void handleEvent(Event e) {
    super.handleEvent(e);
    Widget source = e.widget;

    if (source == destinationBrowseButton) {
        handleDestinationBrowseButtonPressed();
    }

    if (source instanceof Combo) {
        String destination = ((Combo) source).getText();
        if (getDialogSettings() != null) {
            IDialogSettings section = getDialogSettings().getSection(DESTINATION_FILE);
            if (section == null) {
                section = getDialogSettings().addNewSection(DESTINATION_FILE);
            }
            section.put(DESTINATION_FILE, destination);
        }
    }
}
 

@Override
public void execute(Event event) {
	ERDiagram diagram = this.getDiagram();

	ExportToDDLDialog dialog = new ExportToDDLDialog(PlatformUI
			.getWorkbench().getActiveWorkbenchWindow().getShell(), diagram,
			this.getEditorPart(), this.getGraphicalViewer());

	dialog.open();

	this.refreshProject();

	if (dialog.getExportSetting() != null
			&& !diagram.getDiagramContents().getSettings()
					.getExportSetting().equals(dialog.getExportSetting())) {
		Settings newSettings = (Settings) diagram.getDiagramContents()
				.getSettings().clone();
		newSettings.setExportSetting(dialog.getExportSetting());

		ChangeSettingsCommand command = new ChangeSettingsCommand(diagram,
				newSettings);
		this.execute(command);
	}

}
 

@Test
public void call_open_ui_designer_command_on_selection() throws Exception {
    final OpenUIDesignerCoolBarItem openUIDesignerCoolBarItem = spy(new OpenUIDesignerCoolBarItem());
    doReturn(openDesignerHandler).when(openUIDesignerCoolBarItem).getHandler();
    doReturn(prefStore).when(openUIDesignerCoolBarItem).getPreferenceStore();
    doReturn(eclipsePref).when(openUIDesignerCoolBarItem).getEclipsePreferences();
    doReturn(true).when(eclipsePref).getBoolean(eq(OpenUIDesignerCoolBarItem.HIDE_UIDESIGNER_INFO_DIALOG), anyBoolean());
    final Shell shell = realmWithDisplay.getShell();
    doReturn(shell).when(openUIDesignerCoolBarItem).getShell();

    final ToolBar toolbar = new ToolBar(realmWithDisplay.createComposite(), SWT.NONE);
    openUIDesignerCoolBarItem.fill(toolbar, 0, -1);

    final ToolItem toolItem = toolbar.getItem(0);
    toolItem.notifyListeners(SWT.Selection, new Event());

    verify(openDesignerHandler).execute();
}
 

private Event createEvent(Event event) {
	Event e = new Event();
	e.type = SWT.Selection;
	e.data = VButton.this;
	e.button = event.button;
	e.detail = event.detail;
	e.display = event.display;
	e.gc = event.gc;
	e.height = event.height;
	e.stateMask = event.stateMask;
	e.time = event.time;
	e.width = event.width;
	e.x = event.x;
	e.y = event.y;
	return e;
}
 

void onMouseDown(Event e) {
	if ((getStyle() & SWT.DROP_DOWN) == 0) {
		setSelection(!getSelection());
		notifyListeners(SWT.Selection, new Event());
	} else {
		if ( ((getStyle() & SWT.PUSH) == SWT.PUSH) && ( dropdownArea == null || !dropdownArea.contains(e.x, e.y))) {
			notifyListeners(SWT.Selection, new Event());
		} else {
			Event event = new Event();
			event.detail = SWT.ARROW;
			event.x = bounds.x;
			event.y = bounds.y + bounds.height;
			notifyListeners(SWT.Selection, event);
		}
	}
}
 

/**
 * This function should only make the Menu visible if necessary. Nothing
 * inside the Menu will be changed.
 */
@Override
public void handleEvent(Event event) {
	// We want to align the menu with the bottom-left corner of the ToolItem
	// arrow.

	// event.detail == SWT.ARROW means the arrow has been clicked.
	// event.detail == SWT.NONE means the button has been clicked.
	if (event.detail == SWT.ARROW || event.detail == SWT.NONE) {
		Rectangle r = toolItem.getBounds();
		Point p = new Point(r.x, r.y + r.height);
		p = toolItem.getParent().toDisplay(p.x, p.y);
		menu.setLocation(p.x, p.y);
		menu.setVisible(true);
	}

	return;
}
 

public void applyEffect(final long currentTime) {
	current = (int) (start + step
			* easingFunction.getValue((int) currentTime));

	if (!scrollBar.isDisposed()) {
		scrollBar.setSelection(current);
		Event event = new Event();
		event.detail = step < 0 ? SWT.PAGE_UP : SWT.PAGE_DOWN;
		event.data = this;
		event.display = scrollBar.getDisplay();
		event.widget = scrollBar;
		event.doit = true;

		scrollBar.notifyListeners(SWT.Selection, event);
	}
}
 

public void handleEvent(Event e) {
	GC gc = new GC(b);
	Image image = new Image(b.getDisplay(), e.width, e.height);
	gc.copyArea(image, 0, 0);
	ImageData data = image.getImageData();
	gc.dispose();
	image.dispose();
	images.put(key, data);
	keys.put(data, key);
	if(requests.containsKey(key)) {
		for(Iterator<VButton> iter = requests.get(key).iterator(); iter.hasNext();) {
			iter.next().redraw();
			iter.remove();
		}
		requests.remove(key);
	}
	Display.getDefault().asyncExec(new Runnable() {
		public void run() {
			if(!b.isDisposed() && b == b.getDisplay().getFocusControl()) {
				b.getParent().forceFocus();
			}
			b.dispose();
		}
	});
}
 

private void addMouseDownListener() {
	addListener(SWT.MouseDown, new Listener() {
		@Override
		public void handleEvent(final Event event) {
			for (final BreadcrumbItem item : Breadcrumb.this.items) {
				if (item.getBounds().contains(event.x, event.y)) {
					final boolean isToggle = (item.getStyle() & SWT.TOGGLE) != 0;
					final boolean isPush = (item.getStyle() & SWT.PUSH) != 0;
					if (isToggle || isPush) {
						item.setSelection(!item.getSelection());
						redraw();
						update();
					}
					item.setData(IS_BUTTON_PRESSED, "*");
					return;
				}
			}
		}
	});
}
 

@Override
public void handleEvent(Event event) {
  valueChanged = false;

  dmd.setName(setValueChanged(nameText.getText(), dmd.getName()));
  dmd.setVersion(setValueChanged(versionText.getText(), dmd.getVersion()));
  dmd.setVendor(setValueChanged(vendorText.getText(), dmd.getVendor()));
  dmd.setDescription(setValueChanged(multiLineFix(descriptionText.getText()), dmd
          .getDescription()));

  if (valueChanged)
    setFileDirty();
}
 

private IDialogHelper createHyperLinkPart( Composite parent )
{
	Object[] helperProviders = ElementAdapterManager.getAdapters( input,
			IDialogHelperProvider.class );
	if ( helperProviders != null )
	{
		for ( int i = 0; i < helperProviders.length; i++ )
		{
			IDialogHelperProvider helperProvider = (IDialogHelperProvider) helperProviders[i];
			if ( helperProvider != null )
			{
				final IDialogHelper hyperLinkHelper = helperProvider.createHelper( this,
						BuilderConstants.HYPERLINK_HELPER_KEY );
				if ( hyperLinkHelper != null )
				{
					hyperLinkHelper.setProperty( BuilderConstants.HYPERLINK_LABEL,
							Messages.getString( "LevelPropertyDialog.Label.LinkTo" ) ); //$NON-NLS-1$
					hyperLinkHelper.setProperty( BuilderConstants.HYPERLINK_BUTTON_TEXT,
							Messages.getString( "LevelPropertyDialog.Button.Text.Edit" ) ); //$NON-NLS-1$
					hyperLinkHelper.setProperty( BuilderConstants.HYPERLINK_REPORT_ITEM_HANDLE,
							input );
					hyperLinkHelper.setProperty( BuilderConstants.HYPERLINK_REPORT_ITEM_PROVIDER,
							new LinkToCubeExpressionProvider( input ) );
					hyperLinkHelper.createContent( parent );
					hyperLinkHelper.addListener( SWT.Modify,
							new Listener( ) {

								public void handleEvent( Event event )
								{
									hyperLinkHelper.update( false );
								}
							} );
					hyperLinkHelper.update( true );
					return hyperLinkHelper;
				}
			}
		}
	}
	return null;
}
 

private void addRenameTowTreeScriptItems() {
  lastItem = new TreeItem[1];
  editor = new TreeEditor( wTree );
  wTree.addListener( SWT.Selection, new Listener() {
    public void handleEvent( Event event ) {
      final TreeItem item = (TreeItem) event.item;
      renameFunction( item );
    }
  } );
}
 

protected void pressKey(XtextEditor editor, char c) throws Exception {
	StyledText textWidget = editor.getInternalSourceViewer().getTextWidget();
	Event e = new Event();
	e.character = c;
	e.type = SWT.KeyDown;
	e.doit = true;
	//XXX Hack!
	if (c == SWT.ESC) {
		e.keyCode = 27;
	}
	textWidget.notifyListeners(SWT.KeyDown, e);
}
 

public void handleEvent(Event event) {
	switch (event.type) {
		case SWT.Activate :
			styledText = (StyledText) event.widget;
			updateActionsEnableState();
			break;
		case SWT.Deactivate :
			styledText = null;
			updateActionsEnableState();
			break;
		default :
			break;
	}
}
 

public void notifyListeners( )
{
	Event event = new Event( );
	event.type = SWT.Modify;

	for ( Listener listener : listeners )
	{
		listener.handleEvent( event );
	}
}
 

public void runWithEvent(Event event) {
	if (viewer != null && !viewer.getTextWidget().isDisposed()) {
		StyledTextCellEditor editor = HsMultiActiveCellEditor.getFocusCellEditor();
		boolean isSrc = false;
		if (editor != null && editor.getCellType().equals(NatTableConstant.SOURCE)) {
			isSrc = true;
		}
		StyledText styledText = viewer.getTextWidget();
		String text = styledText.getText();
		String selectionText = styledText.getSelectionText();
		// 当选择源文时，要判断是否是删除所有源文
		if (isSrc) {
			if (selectionText != null && text != null && text.equals(selectionText)) {
				MessageDialog.openInformation(viewer.getTextWidget().getShell(),
						Messages.getString("editor.XLIFFEditorActionHandler.msgTitle"),
						Messages.getString("editor.XLIFFEditorActionHandler.msg"));
				return;
			}
		}
		viewer.doOperation(ITextOperationTarget.DELETE);
		updateActionsEnableState();
		return;
	}
	if (deleteAction != null) {
		deleteAction.runWithEvent(event);
		return;
	}
}
 

@Override
public void execute(Event event) {
    final ERDiagram diagram = getDiagram();
    final ChangeFreeLayoutCommand command = new ChangeFreeLayoutCommand(diagram, isChecked());

    execute(command);
}
 

private void addRenameTowTreeScriptItems() {
  lastItem = new TreeItem[1];
  editor = new TreeEditor( wTree );
  wTree.addListener( SWT.Selection, new Listener() {
    public void handleEvent( Event event ) {
      final TreeItem item = (TreeItem) event.item;
      renameFunction( item );
    }
  } );
}
 

/**
 * Create a text box
 */
private void createTextBox() {
	final Text textbox = new Text(composite, SWT.BORDER | SWT.WRAP);
	textbox.setText(textBoxValue);
	final GridData gd = new GridData(GridData.FILL, GridData.FILL, true, true, 1, 1);
	textbox.setLayoutData(gd);
	textbox.addListener(SWT.Modify, e -> {
		textBoxValue = textbox.getText();
	});

	textbox.addListener(SWT.KeyUp, e -> {
		if (e.keyCode == SWT.CR || e.keyCode == SWT.KEYPAD_CR) {
			MessageArea.this.parent.shell.dispose();
			MessageArea.this.parent.getFooterArea().selectedButtonIndex = 0;
		}
	});

	textbox.getShell().addListener(SWT.Activate, new Listener() {

		@Override
		public void handleEvent(final Event arg0) {
			textbox.forceFocus();
			textbox.setSelection(textbox.getText().length());
			textbox.getShell().removeListener(SWT.Activate, this);
		}
	});

}
 

@Override
protected Control createContents(Composite parent) {
    // main page composite
    Composite pageComponent = new Composite(parent, SWT.NONE);
    GridLayout layout = new GridLayout(3, false);
    pageComponent.setLayout(layout);
    //parent.setLayout(layout);

    // search
    createSearchField(pageComponent);

    // get the native commands list
    commandList = CommandDataDefaultCollection.getCommandsNativeAll(new CommandDataList(CommandDataStore.instance().getDataList()));

    // table viewer
    createTableViewer(pageComponent);

    // buttons
    createButtons(pageComponent);

    // refresh the viewer
    refreshTableViewer();

    // send event to refresh tableViewer selection
    Event event = new Event();
    event.item = null;
    tableViewer.getTable().notifyListeners(SWT.Selection, event);

    return pageComponent;
}
 

/**
 * Fires resized event.
 */
void fireResized() {
	Event e = new Event();
	e.display = this.getDisplay();
	e.item = this;
	e.widget = parent;

	this.notifyListeners(SWT.Resize, e);
}
 

/**
 * Handle Combo events
 * @param event
 */
private void comboEvent(Event event) {
    switch (event.type) {
        case SWT.Dispose:
            removeListener(SWT.Dispose, listener);
            notifyListeners(SWT.Dispose, event);
            event.type = SWT.None;

            if (popup != null && !popup.isDisposed()) {
                table.removeListener(SWT.Dispose, listener);
                popup.dispose();
            }
            Shell shell = getShell();
            shell.removeListener(SWT.Deactivate, listener);
            Display display = getDisplay();
            display.removeFilter(SWT.FocusIn, focusFilter);
            popup = null;
            text = null;
            table = null;
            arrow = null;
            selectedImage = null;
            break;
        case SWT.FocusIn:
            Control focusControl = getDisplay().getFocusControl();
            if (focusControl == arrow || focusControl == table)
                return;
            if (isDropped()) {
                table.setFocus();
            } else {
                text.setFocus();
            }
            break;
        case SWT.Move:
            dropDown(false);
            break;
        case SWT.Resize:
            internalLayout(false);
            break;
    }
}
 

public void handleEvent(Event event) {
	Widget resource = event.widget;
	if (resource == cancelBtn) {
		cancelPressed();
	}else if (resource == skipBtn) {
		setReturnCode(SKIP);
		ALWAYS = alwaysBtn.getSelection();
		close();
	}else if (resource == overBtn) {
		setReturnCode(OVER);
		ALWAYS = alwaysBtn.getSelection();
		close();
	}
}
 

protected
zoneView(
 SpeedManagerPingMapper		_mapper,
 Canvas 						_canvas,
 String[]						_labels,
 ValueFormater[]				_formatters )
{
 mapper		= _mapper;
 canvas		= _canvas;
 labels		= _labels;
 formatters	= _formatters;

 canvas.addPaintListener(new PaintListener() {
	@Override
	public void paintControl(PaintEvent e) {
		if (buffer_image != null && !buffer_image.isDisposed()) {
			Rectangle bounds = buffer_image.getBounds();
			if (bounds.width >= ( e.width + e.x ) && bounds.height >= ( e.height + e.y )) {

				e.gc.drawImage(buffer_image, e.x, e.y, e.width, e.height, e.x, e.y,
						e.width, e.height);
			}
		}
	}
});

 canvas.addListener(SWT.Resize, new Listener() {
	@Override
	public void handleEvent(Event event) {
		refresh(true);
	}
});
 COConfigurationManager.addAndFireParameterListener( "Graphics Update", this );
}