Examples with IRegion org.eclipse.jface.text.IRegion used on opensource projects

Example 41 with IRegion

use of org.eclipse.jface.text.IRegion in project xtext-eclipse by eclipse.

the class HierarchyInformationPresenter method modelRange2WidgetRange.

// copied from org.eclipse.jface.text.information.InformationPresenter due to visibility problems
protected IRegion modelRange2WidgetRange(IRegion region) {
    if (sourceViewer instanceof ITextViewerExtension5) {
        ITextViewerExtension5 extension = (ITextViewerExtension5) sourceViewer;
        return extension.modelRange2WidgetRange(region);
    }
    IRegion visibleRegion = sourceViewer.getVisibleRegion();
    int start = region.getOffset() - visibleRegion.getOffset();
    int end = start + region.getLength();
    if (end > visibleRegion.getLength())
        end = visibleRegion.getLength();
    return new Region(start, end - start);
}

Example 42 with IRegion

use of org.eclipse.jface.text.IRegion in project xtext-eclipse by eclipse.

the class ToggleSLCommentAction method isBlockCommented.

/**
 * Determines whether each line is prefixed by one of the prefixes.
 *
 * @param startLine Start line in document
 * @param endLine End line in document
 * @param prefixes Possible comment prefixes
 * @param document The document
 * @return <code>true</code> iff each line from <code>startLine</code>
 *             to and including <code>endLine</code> is prepended by one
 *             of the <code>prefixes</code>, ignoring whitespace at the
 *             begin of line
 * @since 2.1
 */
protected boolean isBlockCommented(int startLine, int endLine, String[] prefixes, IDocument document) {
    try {
        // check for occurrences of prefixes in the given lines
        for (int i = startLine; i <= endLine; i++) {
            IRegion line = document.getLineInformation(i);
            String text = document.get(line.getOffset(), line.getLength());
            int[] found = TextUtilities.indexOf(prefixes, text, 0);
            if (found[0] == -1)
                // found a line which is not commented
                return false;
            String s = document.get(line.getOffset(), found[0]);
            s = s.trim();
            if (s.length() != 0)
                // found a line which is not commented
                return false;
        }
        return true;
    } catch (BadLocationException x) {
        // should not happen
        log.error(x.getMessage(), x);
    }
    return false;
}

Example 43 with IRegion

use of org.eclipse.jface.text.IRegion in project xtext-eclipse by eclipse.

the class ToggleSLCommentAction method isSelectionCommented.

/**
 * Is the given selection single-line commented?
 *
 * @param selection Selection to check
 * @return <code>true</code> iff all selected lines are commented
 * @since 2.1
 */
protected boolean isSelectionCommented(ISelection selection) {
    if (!(selection instanceof ITextSelection))
        return false;
    ITextSelection textSelection = (ITextSelection) selection;
    if (textSelection.getStartLine() < 0 || textSelection.getEndLine() < 0)
        return false;
    IDocument document = getTextEditor().getDocumentProvider().getDocument(getTextEditor().getEditorInput());
    try {
        IRegion block = getTextBlockFromSelection(textSelection, document);
        ITypedRegion[] regions = TextUtilities.computePartitioning(document, fDocumentPartitioning, block.getOffset(), block.getLength(), false);
        // [startline, endline, startline, endline, ...]
        int[] lines = new int[regions.length * 2];
        for (int i = 0, j = 0; i < regions.length; i++, j += 2) {
            // start line of region
            lines[j] = getFirstCompleteLineOfRegion(regions[i], document);
            // end line of region
            int length = regions[i].getLength();
            int offset = regions[i].getOffset() + length;
            if (length > 0)
                offset--;
            lines[j + 1] = (lines[j] == -1 ? -1 : document.getLineOfOffset(offset));
        }
        // Perform the check
        for (int i = 0, j = 0; i < regions.length; i++, j += 2) {
            String[] prefixes = fPrefixesMap.get(regions[i].getType());
            if (prefixes != null && prefixes.length > 0 && lines[j] >= 0 && lines[j + 1] >= 0)
                if (!isBlockCommented(lines[j], lines[j + 1], prefixes, document))
                    return false;
        }
        return true;
    } catch (BadLocationException x) {
        // should not happen
        log.error(x.getMessage(), x);
    }
    return false;
}

Example 44 with IRegion

use of org.eclipse.jface.text.IRegion in project xtext-eclipse by eclipse.

the class XtextTemplateContext method createTemplateTranslator.

protected TemplateTranslator createTemplateTranslator() {
    try {
        int offset = getStart();
        IRegion lineRegion = getDocument().getLineInformationOfOffset(offset);
        String line = getDocument().get(lineRegion.getOffset(), lineRegion.getLength());
        int i = 0;
        while (i < line.length() && Character.isWhitespace(line.charAt(i))) {
            i++;
        }
        if (i != 0)
            return new IndentationAwareTemplateTranslator(line.substring(0, i));
        return new TemplateTranslator();
    } catch (BadLocationException ex) {
        return new TemplateTranslator();
    }
}

Example 45 with IRegion

use of org.eclipse.jface.text.IRegion in project xtext-eclipse by eclipse.

the class DefaultFoldingRegionProviderTest method testSignificantPartOfMlComment_01.

@Test
public void testSignificantPartOfMlComment_01() throws Exception {
    IFile iFile = createFile("foo/bar.foldingtestlanguage", "\n/**\n *\n */\n element foo end");
    IXtextDocument document = openFileAndReturnDocument(iFile);
    DefaultFoldingRegionProvider reg = createFoldingRegionProvider();
    Collection<FoldedPosition> regions = reg.getFoldingRegions(document);
    assertEquals(1, regions.size());
    FoldedPosition position = Iterables.getOnlyElement(regions);
    assertEquals(1, position.getOffset());
    assertEquals("/**\n *\n */\n".length(), position.getLength());
    assertEquals(0, position.computeCaptionOffset(document));
    IRegion[] projectionRegions = position.computeProjectionRegions(document);
    assertEquals(1, projectionRegions.length);
    assertEquals("\n/**\n".length(), projectionRegions[0].getOffset());
    assertEquals(" *\n */\n".length(), projectionRegions[0].getLength());
}