Java SWT.NO_BACKGROUND属性代码示例

private void createPieceDistPanel() {
	comp.setLayout(new FillLayout());
	//pieceDistComposite = new Composite(parent, SWT.NONE);
	pieceDistCanvas = new Canvas(comp,SWT.NO_BACKGROUND);
	pieceDistCanvas.addListener(SWT.Paint, new Listener() {
		@Override
		public void handleEvent(Event event) {
			if ( pem==null || pem.isDestroyed()){
				event.gc.fillRectangle(event.x, event.y, event.width, event.height);
			}else{
				if (imgToPaint != null && !imgToPaint.isDisposed()) {
					event.gc.drawImage(imgToPaint, 0, 0);
				}
			}
		}
	});
}
 

public AnimatedImage(Composite parent) {
	canvas = new Canvas(parent,SWT.NO_BACKGROUND);
	Color background = null;
	Composite p = parent;
	while(p != null && background == null) {
		background = p.getBackground();
		if(background != null) {
			//System.out.println("background : " + background + ", composite : " + p);
			break;
		}
		p = p.getParent();
	}

	canvas.setBackground(background);
	canvas.addListener(SWT.Dispose, new Listener() {
		@Override
		public void handleEvent(Event event) {
			stop();
			disposeImages();
		}
	});
}
 

private void createGraphComposite(Composite parent) {
	try {
		UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
	} catch (ClassNotFoundException | InstantiationException | IllegalAccessException
			| UnsupportedLookAndFeelException e) {
		e.printStackTrace();
	}

	Composite composite = new Composite(parent, SWT.EMBEDDED | SWT.NO_BACKGROUND);
	ClassLoader loader = CFGView.class.getClassLoader();
	URL stylesheetUrl = loader.getResource("/styles/styleSheet.css");
	System.setProperty("sun.awt.noerasebackground", "true");
	System.setProperty("org.graphstream.ui.renderer", "org.graphstream.ui.j2dviewer.J2DGraphRenderer");
	GraphManager manager = new GraphManager("VisuFlow Graph", "url('"+stylesheetUrl.toString()+"')");
	Thread t = new Thread(manager);
	t.start();

	Frame frame = SWT_AWT.new_Frame(composite);
	frame.add(manager.getApplet());
	frame.pack();
}
 

public void initialize(Composite composite, int defaultOrientation) {
	display = composite.getDisplay();
	composite.addDisposeListener((DisposeListener) this::dispose);
	
	tableViewer = new TableViewer(composite, SWT.MULTI | SWT.FULL_SELECTION | SWT.VIRTUAL | SWT.NO_BACKGROUND | SWT.DOUBLE_BUFFERED );
	table = tableViewer.getTable();
	
       GridData gridData = new GridData();
       gridData.verticalAlignment = GridData.FILL;
       gridData.horizontalSpan = 2;
       gridData.grabExcessHorizontalSpace = true;
       gridData.grabExcessVerticalSpace = true;
       gridData.horizontalAlignment = GridData.FILL;
       tableViewer.getControl().setLayoutData(gridData);
	
	tableViewer.setContentProvider((ILazyContentProvider) rowIndex -> tableViewer.replace(contentProvider().getTableEntries().get(rowIndex), rowIndex));
	table.addListener(SWT.Selection, event-> {
		TableItem item = (TableItem) event.item;
		contentProvider().setCursorIndex(contentProvider().getRowIndex((RankedItem<T>) item.getData()));
		handleSelection();
	});
	composite.getShell().addListener(SWT.Resize, event ->  autoAdjustColumnWidths(composite));
	
	// TODO try throttleLast or custom scheduler
	//subjectFilter.debounce(0, TimeUnit.MILLISECONDS).subscribe( filter -> handleRefresh(filter));

}
 

public KaviPickListDialog() {
	super(ProgressManagerUtil.getDefaultParent(), SWT.RESIZE | SWT.NO_BACKGROUND, true, true, false, true, true, null, "Central Command");
	kaviList = new KaviList<T>(KaviPickListDialog.this);
	kaviList.setListContentChangedAction((list, selections) -> {
		displayInfo.filteredCount = list.size();
		displayInfo.selectedCount = selections.size();
		displayInfo.mode = kaviList.currentContentMode();
		updateInfoDisplay();
	});
	create();
}
 

/**
 * @inheritDoc
 */
public OldFXCanvas(@NamedArg("parent") Composite parent, @NamedArg("style") int style) {
    super(parent, style | SWT.NO_BACKGROUND);
    initFx();
    hostContainer = new HostContainer();
    registerEventListeners();
    Display display = parent.getDisplay();
    display.addFilter(SWT.Move, moveFilter);
}
 

/**
 * Constructor for ImageCanvas.
 */
public ImageCanvas(Composite parent, int style, Image image, Object layoutData) {
	super(parent, style | SWT.SHELL_TRIM | SWT.NO_BACKGROUND | SWT.NO_REDRAW_RESIZE);
	this.image = image;
	setLayoutData(layoutData);
	setSize(image.getImageData().width, image.getImageData().height);
	addPaintListener(this);
}
 

@Override
public void createPartControl(final Composite parent) {
  Visualization.container = new Composite(parent, SWT.EMBEDDED | SWT.NO_BACKGROUND);
  Visualization.frame = null;
  Visualization.f = null;
  Visualization.graph = null;
  Visualization.myState = null;
  Visualization.evaluatorPanel = EvaluatorPanel.getInstance(Visualization.xmlFileName);
  Visualization.showViz();
  Visualization.createPopupMenu();
}
 

/**
 * @param skin
 * @param properties
 * @param sID
 * @param sConfigID
 * @param parent
 */
public SWTSkinObjectBrowser(SWTSkin skin, SWTSkinProperties properties,
		String sID, String sConfigID, SWTSkinObject parent) {
	super(skin, properties, sID, sConfigID, "browser", parent);

	cParent = parent == null ? skin.getShell()
			: (Composite) parent.getControl();

	cArea = cParent;
	cArea = new Canvas(cParent, SWT.NO_BACKGROUND);
	cArea.setLayout(new FormLayout());

	setControl(cArea);

	if (cParent.isVisible()) {
		init();
	} else {
		addListener(new SWTSkinObjectListener() {
			@Override
			public Object eventOccured(SWTSkinObject skinObject, int eventType,
			                           Object params) {
				if (eventType == EVENT_SHOW) {
					removeListener(this);
					init();
				}
				return null;
			}
		});
	}
}
 

public C8oBrowser(Composite parent, int style) {
	super(parent, style | SWT.EMBEDDED | SWT.NO_BACKGROUND);
	init(parent, BrowserContext.defaultContext());
}
 

/**
 * Creates a new KTable.
 * 
 * possible styles: SWT.V_SCROLL - show vertical scrollbar and allow
 * vertical scrolling by arrow keys SWT.H_SCROLL - show horizontal scrollbar
 * and allow horizontal scrolling by arrow keys SWT.FLAT - no border
 * drawing.
 * 
 * After creation a table model should be added using setModel().
 */
public KTable(Composite parent, int style) {
  // Oberklasse initialisieren
  super(parent, SWT.NO_BACKGROUND | SWT.NO_REDRAW_RESIZE | style);

  // inits
  m_GC = new GC(this);
  m_Display = Display.getCurrent();
  m_Selection = new HashMap<Object, Object>();
  m_CellEditor = null;

  flatStyleSpecified = ((style | SWT.FLAT) == style);

  m_RowSelectionMode = false;
  m_MultiSelectMode = false;
  m_TopRow = 0;
  m_LeftColumn = 0;
  m_FocusRow = 0;
  m_FocusCol = 0;
  m_RowsVisible = 0;
  m_RowsFullyVisible = 0;
  m_ColumnsVisible = 0;
  m_ColumnsFullyVisible = 0;
  m_ResizeColumnIndex = -1;
  m_ResizeRowIndex = -1;
  m_ResizeRowTop = -1;
  m_NewRowSize = -1;
  m_ResizeColumnLeft = -1;
  m_Capture = false;
  m_ClickColumnIndex = -1;
  m_ClickRowIndex = -1;

  m_LineRestore = null;
  m_LineX = 0;
  m_LineY = 0;

  cellSelectionListeners = new ArrayList<KTableCellSelectionListener>(10);
  cellResizeListeners = new ArrayList<KTableCellResizeListener>(10);

  // Listener
  createListeners();

}
 

public XYZDisplayComp(Composite parent, int style){
	super(parent, style);
	
	this.setLayout(new RowLayout(SWT.HORIZONTAL));
	this.setBackground(AvoColors.COLOR_QSET_BG);
	
	FontData fd = new FontData();
	fd.setHeight(10);
	fd.setStyle(SWT.BOLD);
	fd.setName("Verdana");
	Font f = new Font(this.getDisplay(), fd);		
	
	Label llx = new Label(this, SWT.NO_BACKGROUND);
	llx.setFont(f);
	llx.setText("X:");
	llx.setBackground(AvoColors.COLOR_QSET_BG);
	lX = new Label(this, SWT.NONE);	
	lX.setAlignment(SWT.RIGHT);
	lX.setFont(f);
	lX.setBackground(AvoColors.COLOR_QSET_BG);
	
	Label lly = new Label(this, SWT.NONE);
	lly.setFont(f);
	lly.setText(" Y:");
	lly.setBackground(AvoColors.COLOR_QSET_BG);
	lY = new Label(this, SWT.NONE);
	lY.setAlignment(SWT.RIGHT);
	lY.setFont(f);
	lY.setBackground(AvoColors.COLOR_QSET_BG);
	
	Label llz = new Label(this, SWT.NONE);
	llz.setFont(f);
	llz.setText(" Z:");
	llz.setBackground(AvoColors.COLOR_QSET_BG);
	lZ = new Label(this, SWT.NONE);
	lZ.setAlignment(SWT.RIGHT);
	lZ.setFont(f);
	lZ.setBackground(AvoColors.COLOR_QSET_BG);
	
	updateXYZ();
	
	AvoGlobal.glViewEventHandler.addGLViewListener(new GLViewListener(){
		@Override
		public void cursorMoved() {
			updateXYZ();
		}			
	});
}
 

private void initialize(Composite parent) {

		blockColors = new Color[] {
			properties.getColor("color.pieceview.alldone"),
			properties.getColor("color.pieceview.notdone"),
			properties.getColor("color.pieceview.uploading"),
			properties.getColor("color.pieceview.downloading"),
			properties.getColor("color.pieceview.noavail"),
			properties.getColor("color.pieceview.havesome"),
		};

		compFindPEPiece = new Comparator() {
			@Override
			public int compare(Object arg0, Object arg1) {
				int arg0no = (arg0 instanceof PEPiece)
						? ((PEPiece) arg0).getPieceNumber() : ((Long) arg0).intValue();
				int arg1no = (arg1 instanceof PEPiece)
						? ((PEPiece) arg1).getPieceNumber() : ((Long) arg1).intValue();
				return arg0no - arg1no;
			}
		};

		canvas = new Canvas(parent, SWT.NO_BACKGROUND);
		canvas.setLayout(new FillLayout());

		canvas.addPaintListener(new PaintListener() {
			@Override
			public void paintControl(PaintEvent e) {
				if (img != null && !img.isDisposed()) {
					Rectangle bounds = img.getBounds();
					if (bounds.width >= e.width && bounds.height >= e.height) {
						e.gc.drawImage(img, e.x, e.y, e.width, e.height, e.x, e.y, e.width,
								e.height);
					}
				} else {
					e.gc.fillRectangle(e.x, e.y, e.width, e.height);
				}
			}
		});

		canvas.addListener(SWT.Resize, new Listener() {
			@Override
			public void handleEvent(Event event) {
				calcBlockSize();
			}
		});
	}