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taken from the Multipageeditor example , the folllowing code does not display the browser widget under Linux as expected: it _ONLY_ shows it when the maximize or minimize icon is pressed. Under Windows platform there is no problem: My settings: debian 3.0 sarge gnome 2.4 kernel 2.6.6 #######code starts############## package ss.editors; import java.io.File; import java.io.FileOutputStream; import java.io.OutputStream; import java.io.PrintWriter; import java.io.StringWriter; import java.text.Collator; import java.util.ArrayList; import java.util.Collections; import java.util.List; import java.util.StringTokenizer; import java.util.Vector; import org.eclipse.core.resources.IMarker; import org.eclipse.core.resources.IResourceChangeEvent; import org.eclipse.core.resources.IResourceChangeListener; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.jface.dialogs.ErrorDialog; import org.eclipse.swt.SWT; import org.eclipse.swt.browser.Browser; import org.eclipse.swt.custom.StyledText; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.FontData; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.FontDialog; import org.eclipse.ui.IEditorInput; import org.eclipse.ui.IEditorPart; import org.eclipse.ui.IEditorSite; import org.eclipse.ui.IFileEditorInput; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.PartInitException; import org.eclipse.ui.editors.text.TextEditor; import org.eclipse.ui.ide.IDE; import org.eclipse.ui.part.FileEditorInput; import org.eclipse.ui.part.MultiPageEditorPart; /** * An example showing how to create a multi-page editor. This example has 3 * pages: * <ul> * <li>page 0 contains a nested text editor. * <li>page 1 allows you to change the font used in page 2 * <li>page 2 shows the words in page 0 in sorted order * * <li>page 3 contains the html preview * </ul> */ public class MultiPageEditor extends MultiPageEditorPart implements IResourceChangeListener { /** * Creates page 1 of the multi-page vEditor, which allows you to change the * font used in page 2. */ List tmpFiles = null; public Browser browser = null; /** The text editor used in page 0. */ private TextEditor editor; /** The font chosen in page 1. */ private Font font; /** The text widget used in page 2. */ private StyledText text; private String mytext = "<html><body>test</body></html>"; /** * Creates a multi-page editor example. */ public MultiPageEditor() { super(); ResourcesPlugin.getWorkspace().addResourceChangeListener(this); } /** * Creates page 0 of the multi-page editor, which contains a text editor. */ void createPage0() { try { editor = new TextEditor(); int index = addPage(editor, getEditorInput()); setPageText(index, editor.getTitle()); } catch (PartInitException e) { ErrorDialog.openError(getSite().getShell(), "Error creating nested text editor", null, e.getStatus()); } } /** * Creates page 1 of the multi-page editor, which allows you to change the * font used in page 2. */ void createPage1() { Composite composite = new Composite(getContainer(), SWT.NONE); GridLayout layout = new GridLayout(); composite.setLayout(layout); layout.numColumns = 2; Button fontButton = new Button(composite, SWT.NONE); GridData gd = new GridData(GridData.BEGINNING); gd.horizontalSpan = 2; fontButton.setLayoutData(gd); fontButton.setText("Change Font..."); fontButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent event) { setFont(); } }); int index = addPage(composite); setPageText(index, "Properties"); } /** * Creates page 2 of the multi-page editor, which shows the sorted text. */ void createPage2() { Composite composite = new Composite(getContainer(), SWT.NONE); FillLayout layout = new FillLayout(); composite.setLayout(layout); text = new StyledText(composite, SWT.H_SCROLL | SWT.V_SCROLL); text.setEditable(false); int index = addPage(composite); setPageText(index, "Preview"); } /** * Creates the pages of the multi-page editor. */ protected void createPages() { createPage0(); createPage1(); createPage2(); createPage3(); } /** * The <code>MultiPageEditorPart</code> implementation of this * <code>IWorkbenchPart</code> method disposes all nested editors. * Subclasses may extend. */ public void dispose() { ResourcesPlugin.getWorkspace().removeResourceChangeListener(this); super.dispose(); } /** * Saves the multi-page editor's document. */ public void doSave(IProgressMonitor monitor) { getEditor(0).doSave(monitor); } /** * Saves the multi-page editor's document as another file. Also updates the * text for page 0's tab, and updates this multi-page editor's input to * correspond to the nested editor's. */ public void doSaveAs() { IEditorPart editor = getEditor(0); editor.doSaveAs(); setPageText(0, editor.getTitle()); setInput(editor.getEditorInput()); } /* * (non-Javadoc) Method declared on IEditorPart */ public void gotoMarker(IMarker marker) { setActivePage(0); IDE.gotoMarker(getEditor(0), marker); } /** * The <code>MultiPageEditorExample</code> implementation of this method * checks that the input is an instance of <code>IFileEditorInput</code>. */ public void init(IEditorSite site, IEditorInput editorInput) throws PartInitException { if (!(editorInput instanceof IFileEditorInput)) throw new PartInitException("Invalid Input: Must be IFileEditorInput"); super.init(site, editorInput); } /* * (non-Javadoc) Method declared on IEditorPart. */ public boolean isSaveAsAllowed() { return true; } /** * Calculates the contents of page 2 when the it is activated. */ protected void pageChange(int newPageIndex) { super.pageChange(newPageIndex); if (newPageIndex == 2) { sortWords(); } if (newPageIndex == 3) { showPreview(newPageIndex); } } /** * Closes all project files on project close. */ public void resourceChanged(final IResourceChangeEvent event) { if (event.getType() == IResourceChangeEvent.PRE_CLOSE) { Display.getDefault().asyncExec(new Runnable() { public void run() { IWorkbenchPage[] pages = getSite().getWorkbenchWindow().getPages(); for (int i = 0; i < pages.length; i++) { if (((FileEditorInput) editor.getEditorInput()).getFile().getProject().equals(event.getResource())) { IEditorPart editorPart = pages[i].findEditor((FileEditorInput) editor.getEditorInput()); pages[i].closeEditor(editorPart, true); } } } }); } } /** * Sets the font related data to be applied to the text in page 2. */ void setFont() { FontDialog fontDialog = new FontDialog(getSite().getShell()); fontDialog.setFontList(text.getFont().getFontData()); FontData fontData = fontDialog.open(); if (fontData != null) { if (font != null) font.dispose(); font = new Font(text.getDisplay(), fontData); text.setFont(font); } } /** * Sorts the words in page 0, and shows them in page 2. */ void sortWords() { String editorText = editor.getDocumentProvider().getDocument(editor.getEditorInput()).get(); StringTokenizer tokenizer = new StringTokenizer(editorText, " \t\n\r\f!@#\u0024%^&*()-_=+`~[]{};:'\",.<>/?|\\"); ArrayList editorWords = new ArrayList(); while (tokenizer.hasMoreTokens()) { editorWords.add(tokenizer.nextToken()); } Collections.sort(editorWords, Collator.getInstance()); StringWriter displayText = new StringWriter(); for (int i = 0; i < editorWords.size(); i++) { displayText.write(((String) editorWords.get(i))); displayText.write(System.getProperty("line.separator")); } text.setText(displayText.toString()); } private void showPreview(int newPageIndex) { if (newPageIndex == 3) { // browser.refresh(); try { File file = File.createTempFile("temp", ".html"); OutputStream stream = new FileOutputStream(file); PrintWriter writer = new PrintWriter(stream); writer.println(text); writer.flush(); stream.close(); if (tmpFiles == null) { tmpFiles = new Vector(); } tmpFiles.add(file.getAbsolutePath()); browser.setText(mytext); } catch (Exception e) { } } } protected void createControl(Composite parent, int style) { browser = new Browser(parent, SWT.NONE); browser.setUrl("http://eclipse.org"); int index = addPage(browser); setPageText(index, "Html Preview"); } void createPage3() { createControl(getContainer(), SWT.BOLD); } } ###code ends ####
Previous jface plugin sample can be reduced to the following SWT test: static int cnt = 0; public static void main0(String[] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setText("PRBrowser"); shell.setLayout(new FillLayout()); TabFolder t = new TabFolder(shell, SWT.NONE); TabItem i1 = new TabItem(t, SWT.NONE); TabItem i2 = new TabItem(t, SWT.NONE); Button b = new Button(t, SWT.PUSH); final Browser browser = new Browser(t, SWT.NONE); b.addListener(SWT.Selection, new Listener() { public void handleEvent(Event e) { browser.setText("<html><body>hello "+cnt+"</body></html>"); cnt++; } }); i1.setControl(b); i2.setControl(browser); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } } The bottom of the problem lies in setVisible which does not cause the browser to reappear and redraw without further resizing. public static void main(String[] args) { Display display = new Display(); Shell shell = new Shell(display); shell.setText("PRBrowser"); Button b = new Button(shell, SWT.PUSH); b.setBounds(0,0,100,50); final Button b2 = new Button(shell, SWT.TOGGLE); b2.setBounds(200,0,100,50); final Browser browser = new Browser(shell, SWT.NONE); browser.setBounds(100,100,200,200); b.addListener(SWT.Selection, new Listener() { public void handleEvent(Event e) { browser.setText("<html><body>hello "+cnt+"</body></html>"); cnt++; } }); b2.addListener(SWT.Selection, new Listener() { public void handleEvent(Event e) { boolean flag = b2.getSelection(); if (!flag) System.out.println("make browser visible "+flag); browser.setVisible(flag); } }); shell.setSize(400,400); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } }
fixed v>20040603
