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

Example 11 with ITextViewerExtension5

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

the class AnnotationRulerColumn method doPaint1.

/**
 * Draws the vertical ruler w/o drawing the Canvas background. Implementation based
 * on <code>ITextViewerExtension5</code>. Will replace <code>doPaint(GC)</code>.
 *
 * @param gc the GC to draw into
 */
protected void doPaint1(GC gc) {
    if (fModel == null || fCachedTextViewer == null)
        return;
    ITextViewerExtension5 extension = (ITextViewerExtension5) fCachedTextViewer;
    fScrollPos = fCachedTextWidget.getTopPixel();
    Point dimension = fCanvas.getSize();
    int vOffset = getInclusiveTopIndexStartOffset();
    int vLength = getExclusiveBottomIndexEndOffset() - vOffset;
    // draw Annotations
    Rectangle r = new Rectangle(0, 0, 0, 0);
    ReusableRegion range = new ReusableRegion();
    boolean isWrapActive = fCachedTextWidget.getWordWrap();
    int minLayer = Integer.MAX_VALUE, maxLayer = Integer.MIN_VALUE;
    fCachedAnnotations.clear();
    Iterator<Annotation> iter;
    if (fModel instanceof IAnnotationModelExtension2)
        iter = ((IAnnotationModelExtension2) fModel).getAnnotationIterator(vOffset, vLength + 1, true, true);
    else
        iter = fModel.getAnnotationIterator();
    while (iter.hasNext()) {
        Annotation annotation = iter.next();
        if (skip(annotation))
            continue;
        Position position = fModel.getPosition(annotation);
        if (position == null)
            continue;
        // https://bugs.eclipse.org/bugs/show_bug.cgi?id=217710
        int extendedVLength = position.getLength() == 0 ? vLength + 1 : vLength;
        if (!position.overlapsWith(vOffset, extendedVLength))
            continue;
        int lay = IAnnotationAccessExtension.DEFAULT_LAYER;
        if (fAnnotationAccessExtension != null)
            lay = fAnnotationAccessExtension.getLayer(annotation);
        minLayer = Math.min(minLayer, lay);
        maxLayer = Math.max(maxLayer, lay);
        fCachedAnnotations.add(new Tuple(annotation, position));
    }
    Collections.sort(fCachedAnnotations, fTupleComparator);
    for (int layer = minLayer; layer <= maxLayer; layer++) {
        for (int i = 0, n = fCachedAnnotations.size(); i < n; i++) {
            Tuple tuple = fCachedAnnotations.get(i);
            Annotation annotation = tuple.annotation;
            Position position = tuple.position;
            int lay = IAnnotationAccessExtension.DEFAULT_LAYER;
            if (fAnnotationAccessExtension != null)
                lay = fAnnotationAccessExtension.getLayer(annotation);
            if (// wrong layer: skip annotation
            lay != layer)
                continue;
            range.setOffset(position.getOffset());
            range.setLength(position.getLength());
            IRegion widgetRegion = extension.modelRange2WidgetRange(range);
            if (widgetRegion == null)
                continue;
            int offset = widgetRegion.getOffset();
            int startLine = extension.widgetLineOfWidgetOffset(offset);
            if (startLine == -1)
                continue;
            int length = Math.max(widgetRegion.getLength() - 1, 0);
            int endLine = extension.widgetLineOfWidgetOffset(offset + length);
            if (endLine == -1)
                continue;
            r.x = 0;
            r.width = dimension.x;
            int lines = endLine - startLine;
            if (startLine != endLine || !isWrapActive || length <= 0) {
                // line height for different lines includes wrapped line info already,
                // end we show annotations without offset info at very first line anyway
                r.height = JFaceTextUtil.computeLineHeight(fCachedTextWidget, startLine, endLine + 1, lines + 1);
                r.y = JFaceTextUtil.computeLineHeight(fCachedTextWidget, 0, startLine, startLine) - fScrollPos;
            } else {
                // annotate only the part of the line related to the given offset
                Rectangle textBounds = fCachedTextWidget.getTextBounds(offset, offset + length);
                r.height = textBounds.height;
                r.y = textBounds.y;
            }
            if (// annotation within visible area
            r.y < dimension.y && fAnnotationAccessExtension != null)
                fAnnotationAccessExtension.paint(annotation, gc, fCanvas, r);
        }
    }
    fCachedAnnotations.clear();
}

Example 12 with ITextViewerExtension5

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

the class AnnotationRulerColumn method doubleBufferPaint.

/**
 * Double buffer drawing.
 *
 * @param dest the GC to draw into
 */
private void doubleBufferPaint(GC dest) {
    Point size = fCanvas.getSize();
    if (size.x <= 0 || size.y <= 0)
        return;
    if (fBuffer != null) {
        Rectangle r = fBuffer.getBounds();
        if (r.width != size.x || r.height != size.y) {
            fBuffer.dispose();
            fBuffer = null;
        }
    }
    if (fBuffer == null)
        fBuffer = new Image(fCanvas.getDisplay(), size.x, size.y);
    GC gc = new GC(fBuffer);
    gc.setFont(fCachedTextWidget.getFont());
    try {
        gc.setBackground(fCanvas.getBackground());
        gc.fillRectangle(0, 0, size.x, size.y);
        if (fCachedTextViewer instanceof ITextViewerExtension5)
            doPaint1(gc);
        else
            doPaint(gc);
    } finally {
        gc.dispose();
    }
    dest.drawImage(fBuffer, 0, 0);
}

Example 13 with ITextViewerExtension5

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

the class AnnotationRulerColumn method handleMouseScrolled.

/**
 * Handles mouse scrolls.
 *
 * @param event the mouse scrolled event
 */
private void handleMouseScrolled(MouseEvent event) {
    if (fCachedTextViewer instanceof ITextViewerExtension5) {
        ITextViewerExtension5 extension = (ITextViewerExtension5) fCachedTextViewer;
        StyledText textWidget = fCachedTextViewer.getTextWidget();
        int topIndex = textWidget.getTopIndex();
        int newTopIndex = Math.max(0, topIndex - event.count);
        fCachedTextViewer.setTopIndex(extension.widgetLine2ModelLine(newTopIndex));
    } else if (fCachedTextViewer != null) {
        int topIndex = fCachedTextViewer.getTopIndex();
        int newTopIndex = Math.max(0, topIndex - event.count);
        fCachedTextViewer.setTopIndex(newTopIndex);
    }
}

Example 14 with ITextViewerExtension5

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

the class CompositeRuler method widgetLine2ModelLine.

/**
 * Returns the line in the given viewer's document that correspond to the given
 * line of the viewer's widget.
 *
 * @param viewer the viewer
 * @param widgetLine the widget line
 * @return the corresponding line the viewer's document
 * @since 2.1
 */
protected static final int widgetLine2ModelLine(ITextViewer viewer, int widgetLine) {
    if (viewer instanceof ITextViewerExtension5) {
        ITextViewerExtension5 extension = (ITextViewerExtension5) viewer;
        return extension.widgetLine2ModelLine(widgetLine);
    }
    try {
        IRegion r = viewer.getVisibleRegion();
        IDocument d = viewer.getDocument();
        return widgetLine += d.getLineOfOffset(r.getOffset());
    } catch (BadLocationException x) {
    }
    return widgetLine;
}

Example 15 with ITextViewerExtension5

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

the class MatchingCharacterPainter method handleDrawRequest.

/**
 * Handles a redraw request.
 *
 * @param gc the GC to draw into or <code>null</code> to send a redraw request if necessary
 */
private void handleDrawRequest(GC gc) {
    if (fPairPosition.isDeleted)
        return;
    int offset = fPairPosition.getOffset();
    int length = fPairPosition.getLength();
    if (length < 1)
        return;
    if (fSourceViewer instanceof ITextViewerExtension5) {
        ITextViewerExtension5 extension = (ITextViewerExtension5) fSourceViewer;
        IRegion widgetRange = extension.modelRange2WidgetRange(new Region(offset, length));
        if (widgetRange == null)
            return;
        try {
            // don't draw if the pair position is really hidden and widgetRange just
            // marks the coverage around it.
            IDocument doc = fSourceViewer.getDocument();
            int startLine = doc.getLineOfOffset(offset);
            int endLine = doc.getLineOfOffset(offset + length);
            if (extension.modelLine2WidgetLine(startLine) == -1 || extension.modelLine2WidgetLine(endLine) == -1)
                return;
        } catch (BadLocationException e) {
            return;
        }
        offset = widgetRange.getOffset();
        length = widgetRange.getLength();
    } else {
        IRegion region = fSourceViewer.getVisibleRegion();
        if (region.getOffset() > offset || region.getOffset() + region.getLength() < offset + length)
            return;
        offset -= region.getOffset();
    }
    if (fHighlightCharacterAtCaretLocation || (fHighlightEnclosingPeerCharacters && !fCharacterPresentAtCaretLocation)) {
        draw(gc, offset);
        draw(gc, offset + length - 1);
    } else {
        if (ICharacterPairMatcher.RIGHT == fAnchor)
            draw(gc, offset);
        else
            draw(gc, offset + length - 1);
    }
}