include/svx/IAccessibleViewForwarderListener.hxx

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  19
  20 #ifndef INCLUDED_SVX_IACCESSIBLEVIEWFORWARDERLISTENER_HXX
  21 #define INCLUDED_SVX_IACCESSIBLEVIEWFORWARDERLISTENER_HXX
  22
  23 #include <sal/types.h>
  24
  25
  26 namespace accessibility {
  27
  28 class IAccessibleViewForwarder;
  29
  30 /** <p>The purpose of this interface is to notify a user of an
  31     IAccessibleViewForwarder when that view forwarder changes its
  32     properties.  Such a change may be one of the following:
  33     <ul>
  34     <li>Change of the coordinate transformation.</li>
  35     <li>Change of the visible area (which in turn results in a change of the
  36     coordinate transformation.</li>
  37     <li>Change of the validity state of the view forwarder.</li>
  38 */
  39 class IAccessibleViewForwarderListener
  40 {
  41 public:
  42
  43     /** This method is called to indicate a change of the specified view
  44         forwarder, specifically, a change in visible area.
  45     */
  46     virtual void ViewForwarderChanged() = 0;
  47
  48 protected:
  49     ~IAccessibleViewForwarderListener() {}
  50 };
  51
  52 } // end of namespace accessibility
  53
  54 #endif
  55
  56 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */