public static void main(String[] args) { Display display = Display.getDefault(); Shell shell = new Shell(display); @SuppressWarnings("unused") MainWindow inst = new MainWindow(shell, SWT.NULL); shell.setLayout(new FillLayout()); shell.setImage(SWTResourceManager.getImage("images/16x16.png")); shell.setText("Change This Title"); shell.setBackgroundImage(SWTResourceManager.getImage("images/ToolbarBackground.gif")); shell.layout(); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } }
/** Dispose all of the cached images. */ public static void disposeImages() { SWTResourceManager.disposeImages(); // dispose ImageDescriptor images { for (Iterator<Image> I = m_descriptorImageMap.values().iterator(); I.hasNext(); ) { I.next().dispose(); } m_descriptorImageMap.clear(); } // dispose decorated images for (int i = 0; i < m_decoratedImageMap.length; i++) { Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[i]; if (cornerDecoratedImageMap != null) { for (Map<Image, Image> decoratedMap : cornerDecoratedImageMap.values()) { for (Image image : decoratedMap.values()) { image.dispose(); } decoratedMap.clear(); } cornerDecoratedImageMap.clear(); } } // dispose plugin images { for (Iterator<Image> I = m_URLImageMap.values().iterator(); I.hasNext(); ) { I.next().dispose(); } m_URLImageMap.clear(); } }
{ // Register as a resource user - SWTResourceManager will handle the obtaining and disposing of // resources SWTResourceManager.registerResourceUser(this); }
/** Initializes the GUI. */ private void initGUI() { try { getShell() .addDisposeListener( new DisposeListener() { public void widgetDisposed(DisposeEvent evt) { shellWidgetDisposed(evt); } }); getShell() .addControlListener( new ControlAdapter() { public void controlResized(ControlEvent evt) { shellControlResized(evt); } }); getShell() .addControlListener( new ControlAdapter() { public void controlMoved(ControlEvent evt) { shellControlMoved(evt); } }); GridLayout thisLayout = new GridLayout(); this.setLayout(thisLayout); { GridData toolBarLData = new GridData(); toolBarLData.grabExcessHorizontalSpace = true; toolBarLData.horizontalAlignment = GridData.FILL; toolBar = new ToolBar(this, SWT.FLAT); toolBar.setLayoutData(toolBarLData); toolBar.setBackgroundImage(SWTResourceManager.getImage("images/ToolbarBackground.gif")); { newToolItem = new ToolItem(toolBar, SWT.NONE); newToolItem.setImage(SWTResourceManager.getImage("images/new.gif")); newToolItem.setToolTipText("New"); } { openToolItem = new ToolItem(toolBar, SWT.NONE); openToolItem.setToolTipText("Open"); openToolItem.setImage(SWTResourceManager.getImage("images/open.gif")); openToolItem.addSelectionListener( new SelectionAdapter() { public void widgetSelected(SelectionEvent evt) { openToolItemWidgetSelected(evt); } }); } { saveToolItem = new ToolItem(toolBar, SWT.NONE); saveToolItem.setToolTipText("Save"); saveToolItem.setImage(SWTResourceManager.getImage("images/save.gif")); } } { clientArea = new Composite(this, SWT.NONE); GridData clientAreaLData = new GridData(); clientAreaLData.grabExcessHorizontalSpace = true; clientAreaLData.grabExcessVerticalSpace = true; clientAreaLData.horizontalAlignment = GridData.FILL; clientAreaLData.verticalAlignment = GridData.FILL; clientArea.setLayoutData(clientAreaLData); clientArea.setLayout(null); } { statusArea = new Composite(this, SWT.NONE); GridLayout statusAreaLayout = new GridLayout(); statusAreaLayout.makeColumnsEqualWidth = true; statusAreaLayout.horizontalSpacing = 0; statusAreaLayout.marginHeight = 0; statusAreaLayout.marginWidth = 0; statusAreaLayout.verticalSpacing = 0; statusAreaLayout.marginLeft = 3; statusAreaLayout.marginRight = 3; statusAreaLayout.marginTop = 3; statusAreaLayout.marginBottom = 3; statusArea.setLayout(statusAreaLayout); GridData statusAreaLData = new GridData(); statusAreaLData.horizontalAlignment = GridData.FILL; statusAreaLData.grabExcessHorizontalSpace = true; statusArea.setLayoutData(statusAreaLData); statusArea.setBackground(SWTResourceManager.getColor(239, 237, 224)); { statusText = new Label(statusArea, SWT.BORDER); statusText.setText(" Ready"); GridData txtStatusLData = new GridData(); txtStatusLData.horizontalAlignment = GridData.FILL; txtStatusLData.grabExcessHorizontalSpace = true; txtStatusLData.verticalIndent = 3; statusText.setLayoutData(txtStatusLData); } } thisLayout.verticalSpacing = 0; thisLayout.marginWidth = 0; thisLayout.marginHeight = 0; thisLayout.horizontalSpacing = 0; thisLayout.marginTop = 3; this.setSize(474, 312); { menu1 = new Menu(getShell(), SWT.BAR); getShell().setMenuBar(menu1); { fileMenuItem = new MenuItem(menu1, SWT.CASCADE); fileMenuItem.setText("&File"); { fileMenu = new Menu(fileMenuItem); { newFileMenuItem = new MenuItem(fileMenu, SWT.PUSH); newFileMenuItem.setText("&New"); newFileMenuItem.setImage(SWTResourceManager.getImage("images/new.gif")); } { openFileMenuItem = new MenuItem(fileMenu, SWT.PUSH); openFileMenuItem.setText("&Open"); openFileMenuItem.setImage(SWTResourceManager.getImage("images/open.gif")); openFileMenuItem.addSelectionListener( new SelectionAdapter() { public void widgetSelected(SelectionEvent evt) { openFileMenuItemWidgetSelected(evt); } }); } { closeFileMenuItem = new MenuItem(fileMenu, SWT.CASCADE); closeFileMenuItem.setText("Close"); } { fileMenuSep1 = new MenuItem(fileMenu, SWT.SEPARATOR); } { saveFileMenuItem = new MenuItem(fileMenu, SWT.PUSH); saveFileMenuItem.setText("&Save"); saveFileMenuItem.setImage(SWTResourceManager.getImage("images/save.gif")); saveFileMenuItem.addSelectionListener( new SelectionAdapter() { public void widgetSelected(SelectionEvent evt) { saveFileMenuItemWidgetSelected(evt); } }); } { fileMenuSep2 = new MenuItem(fileMenu, SWT.SEPARATOR); } { exitMenuItem = new MenuItem(fileMenu, SWT.CASCADE); exitMenuItem.setText("E&xit"); exitMenuItem.addSelectionListener( new SelectionAdapter() { public void widgetSelected(SelectionEvent evt) { exitMenuItemWidgetSelected(evt); } }); } fileMenuItem.setMenu(fileMenu); } } { helpMenuItem = new MenuItem(menu1, SWT.CASCADE); helpMenuItem.setText("&Help"); { helpMenu = new Menu(helpMenuItem); { aboutMenuItem = new MenuItem(helpMenu, SWT.CASCADE); aboutMenuItem.setText("&About"); aboutMenuItem.addSelectionListener( new SelectionAdapter() { public void widgetSelected(SelectionEvent evt) { aboutMenuItemWidgetSelected(evt); } }); } helpMenuItem.setMenu(helpMenu); } } } } catch (Exception e) { e.printStackTrace(); } }