Examples with StyledText org.eclipse.swt.custom.StyledText used on opensource projects

Example 81 with StyledText

use of org.eclipse.swt.custom.StyledText in project eclipse.platform.text by eclipse.

the class VerticalRuler method doPaint1.

/**
 * Draws the vertical ruler w/o drawing the Canvas background. Uses
 * <code>ITextViewerExtension5</code> for its implementation. Will replace
 * <code>doPaint(GC)</code>.
 *
 * @param gc  the GC to draw into
 */
protected void doPaint1(GC gc) {
    if (fModel == null || fTextViewer == null)
        return;
    IAnnotationAccessExtension annotationAccessExtension = null;
    if (fAnnotationAccess instanceof IAnnotationAccessExtension)
        annotationAccessExtension = (IAnnotationAccessExtension) fAnnotationAccess;
    ITextViewerExtension5 extension = (ITextViewerExtension5) fTextViewer;
    StyledText textWidget = fTextViewer.getTextWidget();
    fScrollPos = textWidget.getTopPixel();
    Point dimension = fCanvas.getSize();
    // draw Annotations
    Rectangle r = new Rectangle(0, 0, 0, 0);
    // loop at least once through layers.
    int maxLayer = 1;
    for (int layer = 0; layer < maxLayer; layer++) {
        Iterator<Annotation> iter = fModel.getAnnotationIterator();
        while (iter.hasNext()) {
            IAnnotationPresentation annotationPresentation = null;
            Annotation annotation = iter.next();
            int lay = IAnnotationAccessExtension.DEFAULT_LAYER;
            if (annotationAccessExtension != null)
                lay = annotationAccessExtension.getLayer(annotation);
            else if (annotation instanceof IAnnotationPresentation) {
                annotationPresentation = (IAnnotationPresentation) annotation;
                lay = annotationPresentation.getLayer();
            }
            // dynamically update layer maximum
            maxLayer = Math.max(maxLayer, lay + 1);
            if (// wrong layer: skip annotation
            lay != layer)
                continue;
            Position position = fModel.getPosition(annotation);
            if (position == null)
                continue;
            IRegion widgetRegion = extension.modelRange2WidgetRange(new Region(position.getOffset(), position.getLength()));
            if (widgetRegion == null)
                continue;
            int startLine = extension.widgetLineOfWidgetOffset(widgetRegion.getOffset());
            if (startLine == -1)
                continue;
            int endLine = extension.widgetLineOfWidgetOffset(widgetRegion.getOffset() + Math.max(widgetRegion.getLength() - 1, 0));
            if (endLine == -1)
                continue;
            r.x = 0;
            r.y = JFaceTextUtil.computeLineHeight(textWidget, 0, startLine, startLine) - fScrollPos;
            r.width = dimension.x;
            int lines = endLine - startLine;
            r.height = JFaceTextUtil.computeLineHeight(textWidget, startLine, endLine + 1, lines + 1);
            if (// annotation within visible area
            r.y < dimension.y && annotationAccessExtension != null)
                annotationAccessExtension.paint(annotation, gc, fCanvas, r);
            else if (annotationPresentation != null)
                annotationPresentation.paint(gc, fCanvas, r);
        }
    }
}

Example 82 with StyledText

use of org.eclipse.swt.custom.StyledText in project eclipse.platform.text by eclipse.

the class VisibleLinesTracker method track.

/**
 * Track the line height change of the {@link StyledText} of the given handler an call the given
 * handler.
 *
 * @param viewer the viewer to track
 * @param handler the handler to call when line height change.
 */
static void track(ITextViewer viewer, Consumer<StyledText> handler) {
    StyledText textWidget = viewer != null ? viewer.getTextWidget() : null;
    if (textWidget == null) {
        return;
    }
    VisibleLinesTracker tracker = (VisibleLinesTracker) textWidget.getData(DATA_KEY);
    if (tracker == null) {
        tracker = new VisibleLinesTracker(viewer);
        textWidget.setData(DATA_KEY, tracker);
    }
    tracker.addHandler(handler);
}

Example 83 with StyledText

use of org.eclipse.swt.custom.StyledText in project eclipse.platform.text by eclipse.

the class VisibleLinesTracker method paintControl.

@Override
public void paintControl(PaintEvent e) {
    StyledText textWidget = viewer.getTextWidget();
    // track if bottom line index or bottom line pixel changed.
    if (oldBottom == -1) {
        oldBottom = JFaceTextUtil.getPartialBottomIndex(viewer);
        oldBottomPixel = JFaceTextUtil.getLinePixel(textWidget, oldBottom);
        return;
    }
    int newBottom = JFaceTextUtil.getPartialBottomIndex(viewer);
    if (newBottom != oldBottom) {
        oldBottom = newBottom;
        oldBottomPixel = JFaceTextUtil.getLinePixel(textWidget, oldBottom);
        handlers.forEach(handler -> handler.accept(textWidget));
        return;
    }
    int newBottomPixel = JFaceTextUtil.getLinePixel(textWidget, newBottom);
    if (newBottomPixel != oldBottomPixel) {
        oldBottomPixel = newBottomPixel;
        handlers.forEach(handler -> handler.accept(textWidget));
        return;
    }
}

Example 84 with StyledText

use of org.eclipse.swt.custom.StyledText in project eclipse.platform.text by eclipse.

the class AbstractInlinedAnnotation method redraw.

/**
 * Redraw the inlined annotation.
 */
public void redraw() {
    StyledText text = getTextWidget();
    InlinedAnnotationSupport.runInUIThread(text, (t) -> {
        Position pos = getPosition();
        int offset = pos.getOffset();
        ISourceViewer viewer = getViewer();
        if (viewer instanceof ITextViewerExtension5) {
            // adjust offset according folded content
            offset = ((ITextViewerExtension5) viewer).modelOffset2WidgetOffset(offset);
        }
        InlinedAnnotationDrawingStrategy.draw(this, null, t, offset, pos.getLength(), null);
    });
}

Example 85 with StyledText

use of org.eclipse.swt.custom.StyledText in project eclipse.platform.text by eclipse.

the class AbstractInlinedAnnotation method onMouseOut.

/**
 * Called when mouse out the inlined annotation.
 *
 * @param e the mouse event
 */
public void onMouseOut(MouseEvent e) {
    StyledText styledText = (StyledText) e.widget;
    styledText.setCursor(null);
}