slideshow/source/inc/userpainteventhandler.hxx

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  30
  31 #ifndef INCLUDED_SLIDESHOW_USERPAINTEVENTHANDLER_HXX
  32 #define INCLUDED_SLIDESHOW_USERPAINTEVENTHANDLER_HXX
  33
  34 #include <boost/shared_ptr.hpp>
  35
  36 /* Definition of UserPaintEventHandler interface */
  37
  38 namespace slideshow
  39 {
  40     namespace internal
  41     {
  42         class RGBColor;
  43
  44         /** Interface for handling user paint state changes.
  45
  46             Classes implementing this interface can be added to an
  47             EventMultiplexer object, and are called from there to
  48             handle user paint events.
  49          */
  50         class UserPaintEventHandler
  51         {
  52         public:
  53             virtual ~UserPaintEventHandler() {}
  54
  55             virtual bool colorChanged( RGBColor const& rUserColor ) = 0;
  56             virtual bool widthChanged( double nUserStrokeWidth ) = 0;
  57             virtual bool disable() = 0;
  58         };
  59
  60         typedef ::boost::shared_ptr< UserPaintEventHandler > UserPaintEventHandlerSharedPtr;
  61
  62     }
  63 }
  64
  65 #endif /* INCLUDED_SLIDESHOW_USERPAINTEVENTHANDLER_HXX */