Examples of charva.awt.Scrollable

charva.awt.Scrollable
The interface for objects that can be contained in a ScrollPane and scrolled within a Viewport.


        /*
         * This will cause a ClassCastException if the component does not
         * implement the Scrollable interface.
         */
        Scrollable scrollable = (Scrollable) component_;
        scrollable.addScrollListener(this);


        /*
         * If the child component is a JTable, we display two viewports instead
         * of one; the TableHeader corresponding to the table is displayed in
         * the top viewport and scrolls left and right but not up and down. The

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    public Dimension minimumSize() {


        Dimension size = new Dimension();
        Component view = getViewport().getView();
        if (view instanceof Scrollable) {
            Scrollable s = (Scrollable) view;
            size.setSize(s.getPreferredScrollableViewportSize());
        } else {
            size.setSize(view.getSize());
        }


        // Set the size of the viewport(s) as well

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    /**
     * Called by a Scrollable object such as JTable or JList, when its state
     * changes in such a way that it may need to be scrolled.
     */
    public void scroll(ScrollEvent e_) {
        Scrollable scrollable = e_.getScrollable();


        int direction = e_.getDirection();


        /*
         * "limit" gives the row and column of the view component that must
         * appear just inside the JViewport after scrolling.
         */
        Point limit = e_.getLimit();


        /*
         * Determine the value of "limit" relative to the top left corner of
         * the JScrollPane.
         */
        Point viewportLocation = getViewport().getLocation();
        limit.translate(viewportLocation.x, viewportLocation.y);
        limit.translate(scrollable.getLocation());


        /*
         * Get the bounding rectangle of the child viewport, relative to the
         * top left corner of the JScrollPane.
         */

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Related Classes of charva.awt.Scrollable

charvax.swing.JScrollPane

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