org.eclipse.swt.widgets.Display Java Examples

private static final Image createCloseImage(Display display, Color bg, Color fg) {
  int size = 11, off = 1;
  Image image = new Image(display, size, size);
  GC gc = new GC(image);
  gc.setBackground(bg);
  gc.fillRectangle(image.getBounds());
  gc.setForeground(fg);
  gc.drawLine(0 + off, 0 + off, size - 1 - off, size - 1 - off);
  gc.drawLine(1 + off, 0 + off, size - 1 - off, size - 2 - off);
  gc.drawLine(0 + off, 1 + off, size - 2 - off, size - 1 - off);
  gc.drawLine(size - 1 - off, 0 + off, 0 + off, size - 1 - off);
  gc.drawLine(size - 1 - off, 1 + off, 1 + off, size - 1 - off);
  gc.drawLine(size - 2 - off, 0 + off, 0 + off, size - 2 - off);
  /*
   * gc.drawLine(1, 0, size-2, 0); gc.drawLine(1, size-1, size-2, size-1);
   * gc.drawLine(0, 1, 0, size-2); gc.drawLine(size-1, 1, size-1, size-2);
   */
  gc.dispose();
  return image;
}
 

public Color getForeground(Object element) {
	if (currentLogEntry == null) {
		return null;
	}
	ISVNResource resource = currentLogEntry.getResource();
	if (resource == null) return null;
	boolean isPartOfSelection = false;
	if (element instanceof HistoryFolder) {
		HistoryFolder historyFolder = (HistoryFolder)element;				
		isPartOfSelection = (resource.getRepository().getUrl().toString() + historyFolder.getPath()).startsWith(currentLogEntry.getResource().getUrl().toString());
	}
	if (element instanceof LogEntryChangePath) {
		LogEntryChangePath logEntryChangePath = (LogEntryChangePath)element;
		isPartOfSelection = (resource.getRepository().getUrl().toString() + logEntryChangePath.getPath()).startsWith(currentLogEntry.getResource().getUrl().toString());
	}
	if (!isPartOfSelection) return Display.getDefault().getSystemColor(SWT.COLOR_GRAY);
	return null;
}
 

private void refreshLineNumberColumn(){
 	Display.getDefault().asyncExec(() ->{
 		IVerticalRuler ruler= getVerticalRuler();
 		// The following sequence mimics what happens during the setInput method.
 		// For now, this is the only known way to get the LineNumberColumn to update its visible status.
 		
 		// called at the end of org.eclipse.ui.texteditor.AbstractTextEditor.createPartControl(Composite)
if (ruler instanceof CompositeRuler) {
	updateContributedRulerColumns((CompositeRuler) ruler);
}

// called at the end of AbstractDecoratedTextEditor.doSetInput(IEditorInput) 
RulerColumnDescriptor lineNumberColumnDescriptor= RulerColumnRegistry.getDefault().getColumnDescriptor(LineNumberColumn.ID);
if (lineNumberColumnDescriptor != null) {
	IColumnSupport columnSupport= (IColumnSupport)getAdapter(IColumnSupport.class);
	columnSupport.setColumnVisible(lineNumberColumnDescriptor, isLineNumberRulerVisible() || isPrefQuickDiffAlwaysOn());
}

// force redraw of the ruler`s content.
IVerticalRuler verticalRuler = getVerticalRuler();
if (verticalRuler != null) {
	verticalRuler.update();
}
 	});
 }
 

private static int getVisibleItems(SWTBotTimeGraph timegraph) {
    return UIThreadRunnable.syncExec(Display.getDefault(), new IntResult() {
        @Override
        public Integer run() {
            int count = 0;
            TimeGraphControl control = timegraph.widget;
            ITimeGraphEntry[] expandedElements = control.getExpandedElements();
            for (ITimeGraphEntry entry : expandedElements) {
                Rectangle itemBounds = control.getItemBounds(entry);
                if (itemBounds.height > 0) {
                    count++;
                }
            }
            return count;
        }
    });
}
 

/**
 * Constructor
 *
 * You must dispose the color setting when it is no longer required.
 *
 * @param foreground
 *            The foreground color, or null to use the default system color
 * @param background
 *            The background color, or null to use the default system color
 * @param tickColorRGB
 *            The color for the time graph ticks, or null to use the default system color
 * @param filter
 *            The filter tree node, or null
 */
public ColorSetting(@Nullable RGB foreground, @Nullable RGB background, @Nullable RGB tickColorRGB, @Nullable ITmfFilterTreeNode filter) {
    fForegroundRGB = foreground;
    fBackgroundRGB = background;
    fTickColorRGB = (tickColorRGB != null) ? tickColorRGB : checkNotNull(Display.getDefault().getSystemColor(SWT.COLOR_LIST_FOREGROUND).getRGB());
    fFilter = filter;
    Display display = Display.getDefault();
    fForegroundColor = (fForegroundRGB != null) ? new Color(display, fForegroundRGB) : null;
    fBackgroundColor = (fBackgroundRGB != null) ? new Color(display, fBackgroundRGB) : null;
    fDimmedForegroundColor = new Color(display, ColorUtil.blend(
            (fForegroundRGB != null) ? fForegroundRGB : display.getSystemColor(SWT.COLOR_LIST_FOREGROUND).getRGB(),
            (fBackgroundRGB != null) ? fBackgroundRGB : display.getSystemColor(SWT.COLOR_LIST_BACKGROUND).getRGB()));
    fDimmedBackgroundColor = (fBackgroundRGB == null) ? null : new Color(display, ColorUtil.blend(
            fBackgroundRGB, display.getSystemColor(SWT.COLOR_LIST_BACKGROUND).getRGB()));
    fTickColor = new Color(display, fTickColorRGB);
}
 

private void drawHoveringCross(GC gc) {
    if (fHoveredPoint == null) {
        return;
    }

    gc.setLineWidth(1);
    gc.setLineStyle(SWT.LINE_SOLID);
    gc.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_BLACK));
    gc.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));

    /* Vertical line */
    gc.drawLine(fHoveringPoint.x, 0, fHoveringPoint.x, getChart().getPlotArea().getSize().y);

    /* Horizontal line */
    gc.drawLine(0, fHoveringPoint.y, getChart().getPlotArea().getSize().x, fHoveringPoint.y);
}
 

/**
 * 输出字数统计结果到结果窗体中
 * @param WordsFAResultMap
 */
public void printWordsFAReslut() {
	String htmlPath = createFAResultHtml();
	try {
		model.getAnalysisIFileList().get(0).getProject().getFolder("Intermediate").getFolder("Report").refreshLocal(IResource.DEPTH_INFINITE, null);
	} catch (CoreException e1) {
		e1.printStackTrace();
	}
	
	final FileEditorInput input = new FileEditorInput(ResourceUtils.fileToIFile(htmlPath));
	Display.getDefault().asyncExec(new Runnable() {
		public void run() {
			try {
				PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().openEditor(input, QAConstant.FA_HtmlBrowserEditor, true);
			} catch (PartInitException e) {
				logger.error(Messages.getString("qa.fileAnalysis.WordsFA.log5"), e);
				e.printStackTrace();
			}
		}
	});
}
 

protected void createTitle(Composite parent) {
    Composite titleComposite = widgetFactory.createComposite(parent);
    titleComposite.setLayout(GridLayoutFactory.fillDefaults().numColumns(2).create());
    titleComposite.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).create());

    Label label = widgetFactory.createLabel(titleComposite, getTitle(), SWT.NONE);
    label.setLayoutData(GridDataFactory.swtDefaults().grab(false, false).create());

    ControlDecoration controlDecoration = new ControlDecoration(label, SWT.RIGHT, titleComposite);
    controlDecoration.setShowOnlyOnFocus(false);
    controlDecoration.setDescriptionText(getTitleDescripiton());
    controlDecoration.setImage(Pics.getImage(PicsConstants.hint));

    Composite toolBarComposite = widgetFactory.createComposite(titleComposite);
    toolBarComposite.setLayout(GridLayoutFactory.fillDefaults().create());
    toolBarComposite.setLayoutData(GridDataFactory.fillDefaults().align(SWT.END, SWT.FILL).grab(true, false).create());
    ToolBar toolBar = new ToolBar(toolBarComposite, SWT.HORIZONTAL | SWT.RIGHT | SWT.NO_FOCUS | SWT.FLAT);
    widgetFactory.adapt(toolBar);
    toolBar.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_WIDGET_FOREGROUND));
    createToolItems(toolBar);
}
 

/**
 * This method was copy/pasted from JFace.
 */
private static Monitor getClosestMonitor(final Display toSearch, final Point toFind) {
	int closest = Integer.MAX_VALUE;

	final Monitor[] monitors = toSearch.getMonitors();
	Monitor result = monitors[0];

	for (final Monitor current : monitors) {
		final Rectangle clientArea = current.getClientArea();

		if (clientArea.contains(toFind)) { return current; }

		final int distance = Geometry.distanceSquared(Geometry.centerPoint(clientArea), toFind);
		if (distance < closest) {
			closest = distance;
			result = current;
		}
	}

	return result;
}
 

public static void aquireAndRun(IPersistentObject lockPo, ILockHandler lockhandler){
	Display display = Display.getDefault();
	LockResponse result = LocalLockServiceHolder.get().acquireLock(lockPo);
	if (result.isOk()) {
		
		display.syncExec(new Runnable() {
			@Override
			public void run(){
				lockhandler.lockAcquired();
			}
		});
		LocalLockServiceHolder.get().releaseLock(lockPo);
	} else {
		
		display.syncExec(new Runnable() {
			@Override
			public void run(){
				lockhandler.lockFailed();
				LockResponseHelper.showInfo(result, lockPo, logger);
			}
		});
	}
}
 

/**
 * Called when an atomic test has finished, whether the test succeeds or fails.
 *
 * @param description
 *            the description of the test that just ran
 */
@Override
public void testFinished(Description description) throws Exception {
	Display.getDefault().syncExec(new Runnable() {
		@Override
		public void run() {

			IWorkbenchWindow[] windows = N4IDEXpectUIPlugin.getDefault().getWorkbench().getWorkbenchWindows();
			try {
				N4IDEXpectView view = (N4IDEXpectView) windows[0].getActivePage().showView(
						N4IDEXpectView.ID);
				view.notifyFinishedExecutionOf(description);
			} catch (PartInitException e) {
				N4IDEXpectUIPlugin.logError("cannot refresh test view window", e);
			}
		}
	});
}
 

private File fetchArchive(String filePath) throws FetchRemoteBosArchiveException {
    File myFile;
    FetchRemoteBosArchiveOperation operation = new FetchRemoteBosArchiveOperation(filePath);
    try {
        wizardContainer.run(true, false, operation);
    } catch (InvocationTargetException | InterruptedException ex) {
        exceptionDialogHandler.openErrorDialog(Display.getDefault().getActiveShell(),
                Messages.errorOccuredWhileParsingBosArchive, ex);
    }
    if(!operation.getStatus().isOK()) {
        throw new FetchRemoteBosArchiveException(operation.getStatus().getException());
    }
    urlTempPath = operation.getURLTempPath();
    myFile = urlTempPath.getTmpPath().toFile();
    return myFile;
}
 

/**
 * Update the vertical scrollbar if present.
 */
public void updateYScrollBar() {
    if (Display.getCurrent() != null) {
        Display.getCurrent().syncExec(new Runnable() {
            public void run() {
                ScrollBar scroll = getVerticalBar();
                // scroll may be null
                if (scroll != null) {
                    _oldVerticalScroll = -1; // guarantee a clean repaint
                    scroll.setMinimum(0);
                    scroll.setMaximum(getTotalHeight() - getFixedRowsHeight());
                    int height = getHeight();
                    if (_tableRect != null) {
                        height = _tableRect.height;
                    }
                    scroll.setThumb(height); // - getFixedRowsHeight() - getHeaderHeight());
                    scroll.setIncrement(50); // increment for arrows
                    scroll.setPageIncrement(getHeight()); // page increment areas
                    scroll.setSelection(getAbsBeginYForRowIdx(_firstRowIdx) + _firstRowPixelOffset
                            + getFixedRowsHeight());
                }
            }
        });
    }
}
 

/**
 * @see org.eclipse.gef.tools.DirectEditManager#commit()
 */
protected void commit() {
	Shell activeShell = Display.getCurrent().getActiveShell();
	if (activeShell != null && getCellEditor().getControl().getShell().equals(activeShell.getParent())) {
		Control[] children = activeShell.getChildren();
		if (children.length == 1 && children[0] instanceof Table) {
			/*
			 * CONTENT ASSIST: focus is lost to the content assist pop up -
			 * stay in focus
			 */
			getCellEditor().getControl().setVisible(true);
			((XtextStyledTextCellEditorEx) getCellEditor()).setDeactivationLock(true);
			return;
		}
	}

	// content assist hacks
	if (committed) {
		bringDown();
		return;
	}
	committed = true;
	super.commit();
}
 

private static int getVisibleItems(SWTBotTimeGraph timegraph) {
    return UIThreadRunnable.syncExec(Display.getDefault(), new IntResult() {
        @Override
        public Integer run() {
            int count = 0;
            TimeGraphControl control = timegraph.widget;
            ITimeGraphEntry[] expandedElements = control.getExpandedElements();
            for (ITimeGraphEntry entry : expandedElements) {
                Rectangle itemBounds = control.getItemBounds(entry);
                if (itemBounds.height > 0) {
                    count++;
                }
            }
            return count;
        }
    });
}
 

/**
 * Takes a font and gives it a bold typeface.
 * 
 * @param font Font to modify
 * @return Font with bold typeface 
 */
public static Font applyBoldFont(final Font font) {
	if (font == null) {
		return null;
	}

	final FontData[] fontDataArray = font.getFontData();
	if (fontDataArray == null) {
		return null;
	}
	for (int index = 0; index < fontDataArray.length; index++) {
	    final FontData fData = fontDataArray[index];
		fData.setStyle(SWT.BOLD);
	}

	return new Font(Display.getDefault(), fontDataArray);
}
 

protected void paintControlBorder(final PaintEvent e) {
    final GC gc = e.gc;
    final Display display = e.display;
    if (display != null && gc != null && !gc.isDisposed()) {
        final Control focused = display.getFocusControl();
        final GC parentGC = gc;
        parentGC.setAdvanced(true);
        final Rectangle r = ContentAssistText.this.getBounds();
        if (focused == null || focused.getParent() != null && !focused.getParent().equals(ContentAssistText.this)) {
            parentGC.setForeground(display.getSystemColor(SWT.COLOR_GRAY));
        } else {
            parentGC.setForeground(display.getSystemColor(SWT.COLOR_WIDGET_BORDER));
        }
        parentGC.setLineWidth(1);
        parentGC.drawRectangle(0, 0, r.width - 1, r.height - 1);
    }
}
 

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();
		}
	});
}
 

/**
 * Called when an atomic test flags that it assumes a condition that is false
 *
 * describes the test that failed and the {@link AssumptionViolatedException} that was thrown
 */
@Override
public void testAssumptionFailure(Failure failure) {
	Display.getDefault().syncExec(new Runnable() {
		@Override
		public void run() {

			IWorkbenchWindow[] windows = N4IDEXpectUIPlugin.getDefault().getWorkbench().getWorkbenchWindows();
			try {
				N4IDEXpectView view = (N4IDEXpectView) windows[0].getActivePage().showView(
						N4IDEXpectView.ID);
				view.notifyFailedExecutionOf(failure);
			} catch (PartInitException e) {
				N4IDEXpectUIPlugin.logError("cannot refresh test view window", e);
			}
		}
	});
}
 

public TableComboExampleTab() {
	super();
	
	// create bold and italic font.
	ExamplesView.setFont("tableComboCustFont", new FontData[]{
		new FontData("Arial", 8, SWT.BOLD | SWT.ITALIC)});
	boldFont = ExamplesView.getFont("tableComboCustFont"); 
	
	// create images
	testImage = ExamplesView.getImage("icons/in_ec_ov_success_16x16.gif"); 
	test2Image = ExamplesView.getImage("icons/in_ec_ov_warning_16x16.gif");
	test3Image = ExamplesView.getImage("icons/invalid_build_tool_16x16.gif");
	
	// create colors
	darkRed = Display.getCurrent().getSystemColor(SWT.COLOR_DARK_RED);
	darkBlue = Display.getCurrent().getSystemColor(SWT.COLOR_DARK_BLUE);
	darkGreen = Display.getCurrent().getSystemColor(SWT.COLOR_DARK_GREEN);
}
 

public static void main(String[] args) {
	Display display = new Display();
   Shell shell = new Shell(display);
   shell.setLayout(new GridLayout());

   DateChooser cal = new DateChooser(shell, SWT.BORDER);
   cal.setTheme(DateChooserTheme.BLUE);
   cal.setWeeksVisible(true);
   cal.setFooterVisible(true);

   shell.open();
   while ( ! shell.isDisposed() ) {
   	if (!display.readAndDispatch()) display.sleep();
   }
   display.dispose();
}
 

/**
 * @param treeContent
 * @param mappings
 * @return
 */
private Dialog openMapperDialog(final String[] treeContent,
		final String[] mappings) {
	Dialog dialog = new Dialog(Display.getDefault().getActiveShell()) {
		@Override
		public Composite createDialogArea(Composite parent) {
			Composite res = (Composite)super.createDialogArea(parent);
			TreeMapper<String, String, String> mapper = new TreeMapper<String, String, String>(
					parent,
					new ObjectSemanticSupport(),
					new TreeMapperUIConfigProvider(ColorConstants.blue, 2, ColorConstants.darkBlue, 4));
			mapper.setContentProviders(new ArrayTreeContentProvider(), new ArrayTreeContentProvider());
			mapper.setInput(treeContent, treeContent, Arrays.asList(mappings));
			return res;
		}
	};
	dialog.setBlockOnOpen(false);
	dialog.open();
	return dialog;
}
 

public static void main(String[] args) {
  Display display = new Display();
  Shell shell = new Shell(display);
  shell.setText("Demo ControlList");
  shell.setBounds(100, 100, 300, 400);
  FillLayout layout = new FillLayout();
  layout.type = SWT.VERTICAL;
  shell.setLayout(layout);
  createContents(shell);
  shell.open();
  while (!shell.isDisposed()) {
    if (!display.readAndDispatch())
      display.sleep();
  }
  display.dispose();
}
 

/**
 * Executes the GridPrintNoBreak example.
 * 
 * @param args
 *            the command line arguments.
 */
public static void main(String[] args) {
	final Display display = new Display();

	Shell shell = new Shell(display, SWT.SHELL_TRIM);
	shell.setLayout(new GridLayout());
	shell.setSize(600, 600);

	PrintJob job = new PrintJob("GridPrintNoBreakExample", createPrint());

	final PrintPreview preview = new PrintPreview(shell, SWT.BORDER);
	preview.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
	preview.setPrintJob(job);

	shell.open();

	while (!shell.isDisposed())
		if (!display.readAndDispatch())
			display.sleep();

	PaperClips.print(job, new PrinterData());
}
 

/**
 * Check to see if the user wants to launch on a specific port and check if that port is available for use. If it is
 * not, ask the user if they want to cancel the launch or continue anyway
 *
 * Visible for testing
 *
 * @param configuration
 *          A Launch Configuration
 * @return true if launch should continue, false if user terminated
 * @throws CoreException
 */
boolean promptUserToContinueIfPortNotAvailable(ILaunchConfiguration configuration) throws CoreException {

  // ignore the auto select case
  if (WebAppLaunchConfiguration.getAutoPortSelection(configuration)) {
    return true;
  }

  // check to see if the port is available for the web app to launch
  // allows user to trigger launch cancellation
  final AtomicBoolean continueLaunch = new AtomicBoolean(true);
  final String port = WebAppLaunchConfiguration.getServerPort(configuration);
  if (!NetworkUtilities.isPortAvailable(port)) {
    Display.getDefault().syncExec(new Runnable() {
      @Override
      public void run() {
        continueLaunch.set(MessageDialog.openQuestion(null, "Port in Use",
            "The port " + port + " appears to be in use (perhaps by another launch), "
                + "do you still want to continue with this launch?"));
      }
    });
  }
  return continueLaunch.get();
}
 

protected DesignElementHandle createElement( String type ) throws Exception
{
	DesignElementHandle handle = super.createElement( type );
	BaseTitleAreaDialog dialog = null;
	if ( ReportDesignConstants.PARAMETER_GROUP_ELEMENT.equals( type ) )
	{
		dialog = new ParameterGroupDialog( Display.getCurrent( )
				.getActiveShell( ),
				Messages.getString( "ParametersNodeProvider.dialogue.title.group" ) ); //$NON-NLS-1$
		( (ParameterGroupDialog) dialog ).setInput( handle );

	}
	else if ( ReportDesignConstants.SCALAR_PARAMETER_ELEMENT.equals( type ) )
	{
		dialog = new ParameterDialog( PlatformUI.getWorkbench( )
				.getDisplay( )
				.getActiveShell( ),
				Messages.getString( "ParametersNodeProvider.dialogue.title.parameter" ) );//$NON-NLS-1$

		// required default value
		( (ParameterDialog) dialog ).setInput( handle );
	}
	if ( dialog == null )
		return null;
	if ( dialog.open( ) == Dialog.CANCEL )
	{
		return null;
	}

	return (DesignElementHandle) dialog.getResult( );
}
 

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

public void changeControlPressed(DialogField field) {
	ElementListSelectionDialog dialog= new ElementListSelectionDialog(
		Display.getCurrent().getActiveShell(), new JavaElementLabelProvider());
       dialog.setIgnoreCase(false);
       dialog.setTitle(NLSUIMessages.PackageBrowseAdapter_package_selection);
       dialog.setMessage(NLSUIMessages.PackageBrowseAdapter_choose_package);
       dialog.setElements(createPackageListInput(fCu, null));
       if (dialog.open() == Window.OK) {
       	IPackageFragment selectedPackage= (IPackageFragment)dialog.getFirstResult();
       	if (selectedPackage != null) {
       		fReceiver.setPackage(selectedPackage);
       	}
       }
}
 

/**
 * Open the dialog.
 * 
 * @return the result
 */
public Object open() {
	createContents();
	shell.open();
	shell.layout();
	Display display = getParent().getDisplay();
	while (!shell.isDisposed()) {
		if (!display.readAndDispatch()) {
			display.sleep();
		}
	}
	return null;
}
 

private void sendSootClearEvent(){
	Display.getCurrent().syncExec(new Runnable(){
		public void run() {
			SootPlugin.getDefault().fireSootOutputEvent(new SootOutputEvent(SootLauncher.this, ISootOutputEventConstants.SOOT_CLEAR_EVENT));
		};
	});
}