kit/src/main/java/com/oracle/javafx/scenebuilder/kit/editor/panel/content/driver/handles/TableViewHandles.java [139:167]:
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            final Bounds b = di.getColumnHeaderBounds(tc);
            final double startX = b.getMaxX();
            final double startY = b.getMinY();
            final double endY = b.getMaxY();

            final boolean snapToPixel = true;
            final Point2D startPoint = sceneGraphObjectToDecoration(startX, startY, snapToPixel);
            final Point2D endPoint = sceneGraphObjectToDecoration(startX, endY, snapToPixel);

            final Line gripLine = (Line) grips.getChildren().get(gripIndex);
            gripLine.setVisible(true);
            gripLine.setManaged(true);
            gripLine.setStartX(startPoint.getX());
            gripLine.setStartY(startPoint.getY());
            gripLine.setEndX(endPoint.getX());
            gripLine.setEndY(endPoint.getY());
        } else {
            final Line gripLine = (Line) grips.getChildren().get(gripIndex);
            gripLine.setVisible(false);
            gripLine.setManaged(false);
        }
    }
    
    
    /* 
     * Wrapper to avoid the 'leaking this in constructor' warning emitted by NB.
     */
    private void attachHandles(Node node) {
        attachHandles(node, this);
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kit/src/main/java/com/oracle/javafx/scenebuilder/kit/editor/panel/content/driver/handles/TreeTableViewHandles.java [139:167]:
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            final Bounds b = di.getColumnHeaderBounds(tc);
            final double startX = b.getMaxX();
            final double startY = b.getMinY();
            final double endY = b.getMaxY();

            final boolean snapToPixel = true;
            final Point2D startPoint = sceneGraphObjectToDecoration(startX, startY, snapToPixel);
            final Point2D endPoint = sceneGraphObjectToDecoration(startX, endY, snapToPixel);

            final Line gripLine = (Line) grips.getChildren().get(gripIndex);
            gripLine.setVisible(true);
            gripLine.setManaged(true);
            gripLine.setStartX(startPoint.getX());
            gripLine.setStartY(startPoint.getY());
            gripLine.setEndX(endPoint.getX());
            gripLine.setEndY(endPoint.getY());
        } else {
            final Line gripLine = (Line) grips.getChildren().get(gripIndex);
            gripLine.setVisible(false);
            gripLine.setManaged(false);
        }
    }
    
    
    /* 
     * Wrapper to avoid the 'leaking this in constructor' warning emitted by NB.
     */
    private void attachHandles(Node node) {
        attachHandles(node, this);
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