* The following characters have special meaning: ? => any character * => * any string *
* * @since 2.0 */ private static class NamePatternFilter extends ViewerFilter { private String fPattern; private StringMatcher fMatcher; private ILabelProvider fLabelProvider; private Viewer fViewer; private StringMatcher getMatcher() { return fMatcher; } /* * (non-Javadoc) Method declared on ViewerFilter. */ public boolean select(Viewer viewer, Object parentElement, Object element) { if (fMatcher == null) return true; ILabelProvider labelProvider = getLabelProvider(viewer); String matchName = null; if (labelProvider != null) matchName = ((ILabelProvider) labelProvider).getText(element); else if (element instanceof IJavaElement) matchName = ((IJavaElement) element).getElementName(); if (matchName != null && fMatcher.match(matchName)) return true; return hasUnfilteredChild(viewer, element); } private ILabelProvider getLabelProvider(Viewer viewer) { if (fViewer == viewer) return fLabelProvider; fLabelProvider = null; IBaseLabelProvider baseLabelProvider = null; if (viewer instanceof StructuredViewer) baseLabelProvider = ((StructuredViewer) viewer) .getLabelProvider(); if (baseLabelProvider instanceof ILabelProvider) fLabelProvider = (ILabelProvider) baseLabelProvider; return fLabelProvider; } private boolean hasUnfilteredChild(Viewer viewer, Object element) { IJavaElement[] children; if (element instanceof IParent) { try { children = ((IParent) element).getChildren(); } catch (JavaModelException ex) { return false; } for (int i = 0; i < children.length; i++) if (select(viewer, element, children[i])) return true; } return false; } /** * Sets the patterns to filter out for the receiver. ** The following characters have special meaning: ? => any character * => * any string *
*/ public void setPattern(String pattern) { fPattern = pattern; if (fPattern == null) { fMatcher = null; return; } boolean ignoreCase = pattern.toLowerCase().equals(pattern); fMatcher = new StringMatcher(pattern, ignoreCase, false); } } private static class BorderFillLayout extends Layout { /** The border widths. */ final int fBorderSize; /** * Creates a fill layout with a border. */ public BorderFillLayout(int borderSize) { if (borderSize < 0) throw new IllegalArgumentException(); fBorderSize = borderSize; } /** * Returns the border size. */ public int getBorderSize() { return fBorderSize; } /* * @see org.eclipse.swt.widgets.Layout#computeSize(org.eclipse.swt.widgets.Composite, * int, int, boolean) */ protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache) { Control[] children = composite.getChildren(); Point minSize = new Point(0, 0); if (children != null) { for (int i = 0; i < children.length; i++) { Point size = children[i].computeSize(wHint, hHint, flushCache); minSize.x = Math.max(minSize.x, size.x); minSize.y = Math.max(minSize.y, size.y); } } minSize.x += fBorderSize * 2 + RIGHT_MARGIN; minSize.y += fBorderSize * 2; return minSize; } /* * @see org.eclipse.swt.widgets.Layout#layout(org.eclipse.swt.widgets.Composite, * boolean) */ protected void layout(Composite composite, boolean flushCache) { Control[] children = composite.getChildren(); Point minSize = new Point(composite.getClientArea().width, composite.getClientArea().height); if (children != null) { for (int i = 0; i < children.length; i++) { Control child = children[i]; child.setSize(minSize.x - fBorderSize * 2, minSize.y - fBorderSize * 2); child.setLocation(fBorderSize, fBorderSize); } } } } /** Border thickness in pixels. */ private static final int BORDER = 1; /** Right margin in pixels. */ private static final int RIGHT_MARGIN = 3; /** The control's shell */ private Shell fShell; /** The composite */ Composite fComposite; /** The control's text widget */ private Text fFilterText; /** The control's tree widget */ private TreeViewer fTreeViewer; /** The control width constraint */ private int fMaxWidth = -1; /** The control height constraint */ private int fMaxHeight = -1; private StringMatcher fStringMatcher; /** * Creates a tree information control with the given shell as parent. The * given style is applied to the tree widget. * * @param parent * the parent shell * @param style * the additional styles for the tree widget */ public JavaOutlineInformationControl(Shell parent, int style) { this(parent, SWT.RESIZE, style); } /** * Creates a tree information control with the given shell as parent. No * additional styles are applied. * * @param parent * the parent shell */ public JavaOutlineInformationControl(Shell parent) { this(parent, SWT.NONE); } /** * Creates a tree information control with the given shell as parent. The * given styles are applied to the shell and the tree widget. * * @param parent * the parent shell * @param shellStyle * the additional styles for the shell * @param treeStyle * the additional styles for the tree widget */ public JavaOutlineInformationControl(Shell parent, int shellStyle, int treeStyle) { fShell = new Shell(parent, shellStyle); Display display = fShell.getDisplay(); fShell.setBackground(display.getSystemColor(SWT.COLOR_BLACK)); // Composite for filter text and tree fComposite = new Composite(fShell, SWT.RESIZE); GridLayout layout = new GridLayout(1, false); fComposite.setLayout(layout); fComposite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); createFilterText(fComposite); createTreeViewer(fComposite, treeStyle); int border = ((shellStyle & SWT.NO_TRIM) == 0) ? 0 : BORDER; fShell.setLayout(new BorderFillLayout(border)); setInfoSystemColor(); installFilter(); } private void createTreeViewer(Composite parent, int style) { Tree tree = new Tree(parent, SWT.SINGLE | (style & ~SWT.MULTI)); GridData data = new GridData(GridData.FILL_BOTH); tree.setLayoutData(data); fTreeViewer = new TreeViewer(tree); // Hide import declartions but show the container // fTreeViewer.addFilter(new ViewerFilter() { // public boolean select(Viewer viewer, Object parentElement, Object // element) { // return !(element instanceof IImportDeclaration); // } // }); fTreeViewer.setContentProvider(new StandardJavaElementContentProvider( true, true)); fTreeViewer.setSorter(new JavaElementSorter()); fTreeViewer.setAutoExpandLevel(AbstractTreeViewer.ALL_LEVELS); AppearanceAwareLabelProvider lprovider = new AppearanceAwareLabelProvider( AppearanceAwareLabelProvider.DEFAULT_TEXTFLAGS | JavaElementLabels.F_APP_TYPE_SIGNATURE, AppearanceAwareLabelProvider.DEFAULT_IMAGEFLAGS); fTreeViewer .setLabelProvider(new DecoratingJavaLabelProvider(lprovider)); fTreeViewer.getTree().addKeyListener(new KeyListener() { public void keyPressed(KeyEvent e) { if (e.character == 0x1B) // ESC dispose(); } public void keyReleased(KeyEvent e) { // do nothing } }); fTreeViewer.getTree().addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { // do nothing } public void widgetDefaultSelected(SelectionEvent e) { gotoSelectedElement(); } }); } private Text createFilterText(Composite parent) { fFilterText = new Text(parent, SWT.FLAT); GridData data = new GridData(); GC gc = new GC(parent); gc.setFont(parent.getFont()); FontMetrics fontMetrics = gc.getFontMetrics(); gc.dispose(); data.heightHint = org.eclipse.jface.dialogs.Dialog .convertHeightInCharsToPixels(fontMetrics, 1); data.horizontalAlignment = GridData.FILL; data.verticalAlignment = GridData.BEGINNING; fFilterText.setLayoutData(data); fFilterText.addKeyListener(new KeyListener() { public void keyPressed(KeyEvent e) { if (e.keyCode == 0x0D) // return gotoSelectedElement(); if (e.keyCode == SWT.ARROW_DOWN) fTreeViewer.getTree().setFocus(); if (e.keyCode == SWT.ARROW_UP) fTreeViewer.getTree().setFocus(); if (e.character == 0x1B) // ESC dispose(); } public void keyReleased(KeyEvent e) { // do nothing } }); // Horizonral separator line Label separator = new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL | SWT.LINE_DOT); separator.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); return fFilterText; } private void setInfoSystemColor() { Display display = fShell.getDisplay(); setForegroundColor(display.getSystemColor(SWT.COLOR_INFO_FOREGROUND)); setBackgroundColor(display.getSystemColor(SWT.COLOR_INFO_BACKGROUND)); } private void installFilter() { final NamePatternFilter viewerFilter = new NamePatternFilter(); fTreeViewer.addFilter(viewerFilter); fFilterText.setText(""); //$NON-NLS-1$ fFilterText.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { String pattern = fFilterText.getText(); if (pattern != null) { int length = pattern.length(); if (length == 0) pattern = null; else if (pattern.charAt(length - 1) != '*') pattern = pattern + '*'; } else pattern = null; viewerFilter.setPattern(pattern); fStringMatcher = viewerFilter.getMatcher(); fTreeViewer.getControl().setRedraw(false); fTreeViewer.refresh(); fTreeViewer.expandAll(); selectFirstMatch(); fTreeViewer.getControl().setRedraw(true); } }); } private void gotoSelectedElement() { Object selectedElement = ((IStructuredSelection) fTreeViewer .getSelection()).getFirstElement(); if (selectedElement != null) { try { dispose(); OpenActionUtil.open(selectedElement, true); } catch (CoreException ex) { WebUI.log(ex); } } } /** * Selects the first element in the tree which matches the current filter * pattern. */ private void selectFirstMatch() { Tree tree = fTreeViewer.getTree(); Object element = findElement(tree.getItems()); if (element != null) fTreeViewer.setSelection(new StructuredSelection(element), true); else fTreeViewer.setSelection(StructuredSelection.EMPTY); } private IJavaElement findElement(TreeItem[] items) { ILabelProvider labelProvider = (ILabelProvider) fTreeViewer .getLabelProvider(); for (int i = 0; i < items.length; i++) { IJavaElement element = (IJavaElement) items[i].getData(); if (fStringMatcher == null) return element; if (element != null) { String label = labelProvider.getText(element); if (fStringMatcher.match(label)) return element; } element = findElement(items[i].getItems()); if (element != null) return element; } return null; } /* * @see IInformationControl#setInformation(String) */ public void setInformation(String information) { // this method is ignored, see IInformationControlExtension2 } /* * @see IInformationControlExtension2#setInput(Object) */ public void setInput(Object information) { fFilterText.setText(""); //$NON-NLS-1$ if (information == null || information instanceof String) { setInput(null); return; } IJavaElement je = (IJavaElement) information; IJavaElement sel = null; ICompilationUnit cu = (ICompilationUnit) je .getAncestor(IJavaElement.COMPILATION_UNIT); if (cu != null) sel = cu; else sel = je.getAncestor(IJavaElement.CLASS_FILE); fTreeViewer.setInput(sel); fTreeViewer.setSelection(new StructuredSelection(information)); } /* * @see IInformationControl#setVisible(boolean) */ public void setVisible(boolean visible) { fShell.setVisible(visible); } /* * @see IInformationControl#dispose() */ public void dispose() { if (fShell != null) { if (!fShell.isDisposed()) fShell.dispose(); fShell = null; fTreeViewer = null; fComposite = null; fFilterText = null; } } /* * @see org.eclipse.jface.text.IInformationControlExtension#hasContents() */ public boolean hasContents() { return fTreeViewer != null && fTreeViewer.getInput() != null; } /* * @see org.eclipse.jface.text.IInformationControl#setSizeConstraints(int, * int) */ public void setSizeConstraints(int maxWidth, int maxHeight) { fMaxWidth = maxWidth; fMaxHeight = maxHeight; } /* * @see org.eclipse.jface.text.IInformationControl#computeSizeHint() */ public Point computeSizeHint() { return fShell.computeSize(SWT.DEFAULT, SWT.DEFAULT); } /* * @see IInformationControl#setLocation(Point) */ public void setLocation(Point location) { Rectangle trim = fShell.computeTrim(0, 0, 0, 0); Point textLocation = fComposite.getLocation(); location.x += trim.x - textLocation.x; location.y += trim.y - textLocation.y; fShell.setLocation(location); } /* * @see IInformationControl#setSize(int, int) */ public void setSize(int width, int height) { fShell.setSize(width, height); } /* * @see IInformationControl#addDisposeListener(DisposeListener) */ public void addDisposeListener(DisposeListener listener) { fShell.addDisposeListener(listener); } /* * @see IInformationControl#removeDisposeListener(DisposeListener) */ public void removeDisposeListener(DisposeListener listener) { fShell.removeDisposeListener(listener); } /* * @see IInformationControl#setForegroundColor(Color) */ public void setForegroundColor(Color foreground) { fTreeViewer.getTree().setForeground(foreground); fFilterText.setForeground(foreground); fComposite.setForeground(foreground); } /* * @see IInformationControl#setBackgroundColor(Color) */ public void setBackgroundColor(Color background) { fTreeViewer.getTree().setBackground(background); fFilterText.setBackground(background); fComposite.setBackground(background); } /* * @see IInformationControl#isFocusControl() */ public boolean isFocusControl() { return fTreeViewer.getControl().isFocusControl() || fFilterText.isFocusControl(); } /* * @see IInformationControl#setFocus() */ public void setFocus() { fShell.forceFocus(); fFilterText.setFocus(); } /* * @see IInformationControl#addFocusListener(FocusListener) */ public void addFocusListener(FocusListener listener) { fShell.addFocusListener(listener); } /* * @see IInformationControl#removeFocusListener(FocusListener) */ public void removeFocusListener(FocusListener listener) { fShell.removeFocusListener(listener); } }