Examples with ITextViewerExtension5 org.eclipse.jface.text.ITextViewerExtension5 used on opensource projects

Example 46 with ITextViewerExtension5

use of org.eclipse.jface.text.ITextViewerExtension5 in project eclipse.platform.text by eclipse.

the class OverviewRuler method toLineNumbers.

/**
 * Translates a given y-coordinate of this ruler into the corresponding
 * document lines. The number of lines depends on the concrete scaling
 * given as the ration between the height of this ruler and the length
 * of the document.
 *
 * @param y_coordinate the y-coordinate
 * @param annotationRect <code>true</code> to only consider the position of a drawn annotation rectangle,
 * 	<code>false</code> to consider the whole line
 * @return the corresponding document lines as {firstLine, lastLine}, or {-1, -1} if no lines correspond to the y-coordinate
 */
private int[] toLineNumbers(int y_coordinate, boolean annotationRect) {
    // this is the inverse of #computeY(int, WidgetInfos)
    WidgetInfos infos = new WidgetInfos(fTextViewer.getTextWidget(), fCanvas);
    if (y_coordinate >= infos.writable || y_coordinate >= infos.bounds.height || y_coordinate < 0)
        return new int[] { -1, -1 };
    if (annotationRect && ANNOTATION_HEIGHT >= infos.bounds.height / infos.maxLines)
        annotationRect = false;
    int[] lines = new int[2];
    int[] pixels;
    int pixelEnd = Math.min(infos.bounds.height, y_coordinate + ANNOTATION_HEIGHT / 2 + 1);
    if (annotationRect) {
        pixels = new int[] { pixelEnd };
    } else {
        int pixelStart = Math.max(y_coordinate - ANNOTATION_HEIGHT / 2 + 1, 0);
        pixels = new int[] { pixelStart, pixelEnd };
    }
    if (infos.bounds.height > infos.writable || infos.invisibleLines <= 0) {
        // yy = Math.max(0, (2 * startLine + 1) * infos.writable / (infos.maxLines * 2) - infos.bounds.y);
        for (int i = 0; i < pixels.length; i++) lines[i] = (int) ((pixels[i] + infos.bounds.y) * infos.maxLines / (double) infos.writable);
        if (DEBUG_TO_DOCUMENT_LINE_NUMBER)
            // $NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
            System.out.println("static y: " + y_coordinate + " => [" + lines[0] + ", " + lines[1] + "]");
    } else if (y_coordinate < infos.thumbHeight / 2) {
        // yy= (int) (startLine * infos.thumbHeight / infos.visibleLines);
        for (int i = 0; i < pixels.length; i++) lines[i] = (int) (pixels[i] * infos.visibleLines / infos.thumbHeight);
        if (DEBUG_TO_DOCUMENT_LINE_NUMBER)
            // $NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
            System.out.println("start  y: " + y_coordinate + " => [" + lines[0] + ", " + lines[1] + "]");
    } else if (infos.bounds.height - 1 - infos.thumbHeight / 2 < y_coordinate) {
        // yy= (int) (infos.bounds.height-1 - (double)infos.thumbHeight / 2 + (startLine - (infos.maxLines - infos.visibleLines / 2) + 1) * infos.thumbHeight / infos.visibleLines);
        for (int i = 0; i < pixels.length; i++) lines[i] = (int) ((pixels[i] - (infos.bounds.height - 1) + (double) infos.thumbHeight / 2) * infos.visibleLines / infos.thumbHeight - 1 + (infos.maxLines - infos.visibleLines / 2));
        if (DEBUG_TO_DOCUMENT_LINE_NUMBER)
            // $NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
            System.out.println("end    y: " + y_coordinate + " => [" + lines[0] + ", " + lines[1] + "]");
    } else {
        // yy= (int) ((double)infos.thumbHeight/2 + (startLine + 1 - infos.visibleLines / 2) * (infos.bounds.height-1 - infos.thumbHeight) / infos.invisibleLines);
        for (int i = 0; i < pixels.length; i++) lines[i] = (int) ((pixels[i] - (double) infos.thumbHeight / 2) * infos.invisibleLines / (infos.bounds.height - 1 - infos.thumbHeight) - 1 + infos.visibleLines / 2);
        if (DEBUG_TO_DOCUMENT_LINE_NUMBER)
            // $NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
            System.out.println("middle y: " + y_coordinate + " => [" + lines[0] + ", " + lines[1] + "]");
    }
    if (y_coordinate < ANNOTATION_HEIGHT && y_coordinate < infos.bounds.y)
        lines[0] = 0;
    else if (lines[0] < 0)
        lines[0] = 0;
    if (annotationRect) {
        int y0 = computeY(lines[0], infos);
        if (y_coordinate < y0 || y0 + ANNOTATION_HEIGHT < y_coordinate) {
            lines[0] = -1;
            lines[1] = -1;
            return lines;
        } else {
            lines[1] = lines[0];
        }
    }
    if (lines[1] > infos.maxLines)
        lines[1] = infos.maxLines;
    if (fTextViewer instanceof ITextViewerExtension5) {
        ITextViewerExtension5 extension = (ITextViewerExtension5) fTextViewer;
        lines[0] = extension.widgetLine2ModelLine(lines[0]);
        lines[1] = extension.widgetLine2ModelLine(lines[1]);
    } else {
        try {
            IRegion visible = fTextViewer.getVisibleRegion();
            int lineNumber = fTextViewer.getDocument().getLineOfOffset(visible.getOffset());
            lines[0] += lineNumber;
            lines[1] += lineNumber;
        } catch (BadLocationException x) {
        }
    }
    if (DEBUG_TO_DOCUMENT_LINE_NUMBER)
        // $NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
        System.out.println("result: [" + lines[0] + ", " + lines[1] + "]");
    return lines;
}

Example 47 with ITextViewerExtension5

use of org.eclipse.jface.text.ITextViewerExtension5 in project webtools.sourceediting by eclipse.

the class StructuredTextEditor method gotoMatchingBracket.

/**
 * Jumps to the matching bracket.
 */
void gotoMatchingBracket() {
    ICharacterPairMatcher matcher = createCharacterPairMatcher();
    if (matcher == null)
        return;
    ISourceViewer sourceViewer = getSourceViewer();
    IDocument document = sourceViewer.getDocument();
    if (document == null)
        return;
    IRegion selection = getSignedSelection(sourceViewer);
    int selectionLength = Math.abs(selection.getLength());
    if (selectionLength > 1) {
        setStatusLineErrorMessage(SSEUIMessages.GotoMatchingBracket_error_invalidSelection);
        sourceViewer.getTextWidget().getDisplay().beep();
        return;
    }
    int sourceCaretOffset = selection.getOffset() + selection.getLength();
    IRegion region = matcher.match(document, sourceCaretOffset);
    if (region == null) {
        setStatusLineErrorMessage(SSEUIMessages.GotoMatchingBracket_error_noMatchingBracket);
        sourceViewer.getTextWidget().getDisplay().beep();
        return;
    }
    int offset = region.getOffset();
    int length = region.getLength();
    if (length < 1)
        return;
    int anchor = matcher.getAnchor();
    // go to after the match if matching to the right
    int targetOffset = (ICharacterPairMatcher.RIGHT == anchor) ? offset : offset + length;
    boolean visible = false;
    if (sourceViewer instanceof ITextViewerExtension5) {
        ITextViewerExtension5 extension = (ITextViewerExtension5) sourceViewer;
        visible = (extension.modelOffset2WidgetOffset(targetOffset) > -1);
    } else {
        IRegion visibleRegion = sourceViewer.getVisibleRegion();
        // http://dev.eclipse.org/bugs/show_bug.cgi?id=34195
        visible = (targetOffset >= visibleRegion.getOffset() && targetOffset <= visibleRegion.getOffset() + visibleRegion.getLength());
    }
    if (!visible) {
        setStatusLineErrorMessage(SSEUIMessages.GotoMatchingBracket_error_bracketOutsideSelectedElement);
        sourceViewer.getTextWidget().getDisplay().beep();
        return;
    }
    if (selection.getLength() < 0)
        targetOffset -= selection.getLength();
    if (sourceViewer != null) {
        sourceViewer.setSelectedRange(targetOffset, selection.getLength());
        sourceViewer.revealRange(targetOffset, selection.getLength());
    }
}

Example 48 with ITextViewerExtension5

use of org.eclipse.jface.text.ITextViewerExtension5 in project webtools.sourceediting by eclipse.

the class OpenFileHyperlinkTracker method repairRepresentation.

private void repairRepresentation(boolean redrawAll) {
    if (fActiveRegion == null)
        return;
    int offset = fActiveRegion.getOffset();
    int length = fActiveRegion.getLength();
    fActiveRegion = null;
    ITextViewer viewer = getTextViewer();
    if (viewer != null) {
        resetCursor(viewer);
        // Remove underline
        if (viewer instanceof ITextViewerExtension5) {
            ITextViewerExtension5 extension = (ITextViewerExtension5) viewer;
            offset = extension.modelOffset2WidgetOffset(offset);
        } else {
            offset -= viewer.getVisibleRegion().getOffset();
        }
        try {
            StyledText text = viewer.getTextWidget();
            // need clearBackground to be true for paint event to be fired
            text.redrawRange(offset, length, true);
        } catch (IllegalArgumentException x) {
            Logger.logException(x);
        }
    }
}

Example 49 with ITextViewerExtension5

use of org.eclipse.jface.text.ITextViewerExtension5 in project webtools.sourceediting by eclipse.

the class OpenFileHyperlinkTracker method paintControl.

/*
	 * @see PaintListener#paintControl(PaintEvent)
	 */
public void paintControl(PaintEvent event) {
    if (fActiveRegion == null)
        return;
    ITextViewer viewer = getTextViewer();
    if (viewer == null)
        return;
    StyledText text = viewer.getTextWidget();
    if (text == null || text.isDisposed())
        return;
    int offset = 0;
    int length = 0;
    if (viewer instanceof ITextViewerExtension5) {
        ITextViewerExtension5 extension = (ITextViewerExtension5) viewer;
        IRegion widgetRange = extension.modelRange2WidgetRange(fActiveRegion);
        if (widgetRange == null)
            return;
        offset = widgetRange.getOffset();
        length = widgetRange.getLength();
    } else {
        IRegion region = viewer.getVisibleRegion();
        if (!includes(region, fActiveRegion))
            return;
        offset = fActiveRegion.getOffset() - region.getOffset();
        length = fActiveRegion.getLength();
    }
    // support for bidi
    Point minLocation = getMinimumLocation(text, offset, length);
    Point maxLocation = getMaximumLocation(text, offset, length);
    int x1 = minLocation.x;
    int x2 = minLocation.x + maxLocation.x - minLocation.x - 1;
    int y = minLocation.y + text.getLineHeight() - 1;
    GC gc = event.gc;
    if (fColor != null && !fColor.isDisposed())
        gc.setForeground(fColor);
    gc.drawLine(x1, y, x2, y);
}

Example 50 with ITextViewerExtension5

use of org.eclipse.jface.text.ITextViewerExtension5 in project webtools.sourceediting by eclipse.

the class Highlighter method getDocumentRangeFromWidgetRange.

/**
 * Adjust the given widget offset and length so that they are the
 * textviewer document's offset and length, taking into account what is
 * actually visible in the document.
 *
 * @param offset
 * @param length
 * @return a region containing the offset and length within the
 *         textviewer's document or null if the offset is not within the
 *         document
 */
private IRegion getDocumentRangeFromWidgetRange(int offset, int length) {
    IRegion styleRegion = null;
    ITextViewer viewer = getTextViewer();
    if (viewer instanceof ITextViewerExtension5) {
        // get document range, taking into account folding regions in
        // viewer
        ITextViewerExtension5 extension = (ITextViewerExtension5) viewer;
        styleRegion = extension.widgetRange2ModelRange(new Region(offset, length));
    } else {
        // get document range, taking into account viewer visible region
        // get visible region in viewer
        IRegion vr = null;
        if (viewer != null)
            vr = viewer.getVisibleRegion();
        else
            vr = new Region(0, getDocument().getLength());
        // care
        if (offset <= vr.getLength()) {
            // Adjust the offset to be within visible region
            styleRegion = new Region(offset + vr.getOffset(), length);
        }
    }
    return styleRegion;
}