Examples of org.eclipse.swt.graphics.Rectangle.union()

    Rectangle rect = getDecorationRectangle(control.getShell());
    // If this update is happening due to an image reset, we need to make
    // sure we clear the area from the old image.
    // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=212501
    if (previousDecorationRectangle != null) {
      rect = rect.union(previousDecorationRectangle);
    }
    // Redraw this rectangle in all children
    control.getShell()
        .redraw(rect.x, rect.y, rect.width, rect.height, true);
    control.getShell().update();

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