Widget_Emitter.hxx

// 
// Copyright (C) 2006 James M. Lawrence.  All rights reserved.
// 
// software: esve-1.0.3
// file: esve/ui/extra/Widget_Emitter.hxx
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 
// 2. The origin of this software must not be misrepresented; you must
//    not claim that you wrote the original software.  If you use this
//    software in a product, an acknowledgment in the product 
//    documentation would be appreciated but is not required.
// 
// 3. Altered source versions must be plainly marked as such, and must
//    not be misrepresented as being the original software.
// 
// 4. The name of the author may not be used to endorse or promote
//    products derived from this software without specific prior written
//    permission.
// 
// THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY,
// AND WITH NO CLAIM AS TO ITS SUITABILITY FOR ANY PURPOSE.  IN NO EVENT
// SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM WHATSOEVER MADE IN CONNECTION
// TO THIS SOFTWARE.
// 

#ifndef esve_ui_extra_Widget_Emitter_hxx
#define esve_ui_extra_Widget_Emitter_hxx

#include <esve/kernel/impl/Emitter.hxx>
#include <memory>

namespace esve { namespace message { class Handle_Args ; } }

namespace esve { namespace ui { namespace extra {

//
// @class Widget_Emitter esve/ui/extra/Widget_Emitter.hxx
// @brief Undocumented base class.
//
// Blocks handle()-recursion on the same widget.
//

class Widget ;

class Widget_Emitter
    : virtual public kernel::impl::Emitter
{
public:
    ~Widget_Emitter() ;

protected:
    Widget_Emitter() ;

    virtual bool emit_widget( const Widget &,
                              const message::Handle_Args & ) ;

private:
    Widget_Emitter( const Widget_Emitter & ) ;
    Widget_Emitter & operator=( const Widget_Emitter & ) ;

    class Private ;
    const std::auto_ptr<Private> m ;
} ;

}}} // namespace esve::ui::extra

#endif

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