Examples with IVerticalRulerInfo org.eclipse.jface.text.source.IVerticalRulerInfo used on opensource projects

Example 1 with IVerticalRulerInfo

use of org.eclipse.jface.text.source.IVerticalRulerInfo in project linuxtools by eclipse.

the class AddStapProbeHandler method execute.

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
    ITextEditor editor;
    try {
        editor = (ITextEditor) HandlerUtil.getActiveEditor(event);
    } catch (ClassCastException e) {
        ExceptionErrorDialog.openError(Messages.AddStapProbe_unableToInsertProbe, Messages.AddStapProbe_editorError, e);
        throw new ExecutionException(Messages.AddStapProbe_editorError, e);
    }
    IVerticalRulerInfo rulerInfo = editor.getAdapter(IVerticalRulerInfo.class);
    Shell shell = editor.getSite().getShell();
    shell.setCursor(shell.getDisplay().getSystemCursor(SWT.CURSOR_WAIT));
    int lineno = rulerInfo.getLineOfLastMouseButtonActivity();
    IDocument document = editor.getDocumentProvider().getDocument(editor.getEditorInput());
    String s = document.get();
    // $NON-NLS-1$
    String[] lines = s.split("\n");
    String line = lines[lineno].trim();
    boolean die = false;
    if (line.isEmpty()) {
        // eat blank lines
        die = true;
    }
    if (line.startsWith("#")) {
        // eat preprocessor directives //$NON-NLS-1$
        die = true;
    }
    if (line.startsWith("//")) {
        // eat C99 comments //$NON-NLS-1$
        die = true;
    }
    if (line.startsWith("/*") && !line.contains("*/") && !line.endsWith("*/")) {
        // try to eat single-line C comments //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
        die = true;
    }
    // gogo find comment segments
    try {
        ArrayList<Integer> commentChunks = new ArrayList<>();
        char[] chars = s.toCharArray();
        int needle = 1;
        int offset = document.getLineOffset(lineno);
        while (needle < chars.length) {
            if (chars[needle - 1] == '/' && chars[needle] == '*') {
                commentChunks.add(needle);
                while (needle < chars.length) {
                    if (chars[needle - 1] == '*' && chars[needle] == '/') {
                        commentChunks.add(needle);
                        needle++;
                        break;
                    }
                    needle++;
                }
            }
            needle++;
        }
        for (int i = 0, pair, start, end; i < commentChunks.size(); i++) {
            if (!(commentChunks.get(i).intValue() < offset)) {
                pair = i - i % 2;
                start = commentChunks.get(pair).intValue();
                end = commentChunks.get(pair + 1).intValue();
                if (offset >= start && offset <= end) {
                    die = true;
                }
            }
        }
    } catch (BadLocationException excp) {
        ExceptionErrorDialog.openError(Messages.AddStapProbe_unableToInsertProbe, excp);
        return null;
    }
    if (die) {
        MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), Messages.CEditor_probeInsertFailed, Messages.CEditor_canNotProbeLine);
    } else {
        IEditorInput in = editor.getEditorInput();
        if (in instanceof FileStoreEditorInput) {
            FileStoreEditorInput input = (FileStoreEditorInput) in;
            IPreferenceStore p = IDEPlugin.getDefault().getPreferenceStore();
            String kernroot = p.getString(IDEPreferenceConstants.P_KERNEL_SOURCE);
            String filepath = input.getURI().getPath();
            String kernrelative = filepath.substring(kernroot.length() + 1, filepath.length());
            StringBuffer sb = new StringBuffer();
            // $NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
            sb.append("probe kernel.statement(\"*@" + kernrelative + ":" + (lineno + 1) + "\")");
            // $NON-NLS-1$
            sb.append("\n{\n\t\n}\n");
            STPEditor activeSTPEditor = IDESessionSettings.getOrAskForActiveSTPEditor(false);
            if (activeSTPEditor != null) {
                activeSTPEditor.insertText(sb.toString());
            }
        }
    }
    // Return the cursor to normal
    shell.setCursor(null);
    return null;
}

Example 2 with IVerticalRulerInfo

use of org.eclipse.jface.text.source.IVerticalRulerInfo in project eclipse.platform.text by eclipse.

the class AbstractRulerActionDelegate method setActiveEditor.

@Override
public void setActiveEditor(IAction callerAction, IEditorPart targetEditor) {
    if (fEditor != null) {
        IVerticalRulerInfo rulerInfo = fEditor.getAdapter(IVerticalRulerInfo.class);
        if (rulerInfo != null) {
            Control control = rulerInfo.getControl();
            if (control != null && !control.isDisposed())
                control.removeMouseListener(this);
        }
        if (fEditor instanceof ITextEditorExtension)
            ((ITextEditorExtension) fEditor).removeRulerContextMenuListener(this);
    }
    fEditor = targetEditor == null ? null : targetEditor.getAdapter(ITextEditor.class);
    fCallerAction = callerAction;
    fAction = null;
    if (fEditor != null) {
        if (fEditor instanceof ITextEditorExtension)
            ((ITextEditorExtension) fEditor).addRulerContextMenuListener(this);
        IVerticalRulerInfo rulerInfo = fEditor.getAdapter(IVerticalRulerInfo.class);
        if (rulerInfo != null) {
            fAction = createAction(fEditor, rulerInfo);
            update();
            Control control = rulerInfo.getControl();
            if (control != null && !control.isDisposed())
                control.addMouseListener(this);
        }
    }
}