LUMIERA.clone/src/gui/display-interface-proxy.hpp
Ichthyostega 268f8cbc4c refactor interfaceproxy.cpp to rather include the definitions
this allows to put the proxy definitions alongside with the
actually implementing service, which makes much more sense
than having all in one huge interfaceproxy.cpp file
2009-02-09 01:21:01 +01:00

94 lines
2.9 KiB
C++

/*
Display(Proxy) - service providing access to a display for outputting frames
Copyright (C) Lumiera.org
2009, Hermann Vosseler <Ichthyostega@web.de>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
* *****************************************************/
/** @file display-interface-proxy.hpp
** This is an implementation fragment, intended to be included into common/interfaceproxy.cpp
**
** The purpose is to define a proxy implementation of lumiera::Display, in order to
** redirect any calls through the associated C Language Interface "lumieraorg_Display"
**
** @see display-facade.hpp
** @see display-service.hpp actual implementation within the GUI
*/
/* ==================== gui::Display ====================================== */
#include "include/display-facade.h"
namespace lumiera {
/** storage for the facade proxy factory
* used by client code to invoke through the interface */
lumiera::facade::Accessor<Display> Display::facade;
/// emit the vtable here into this translation unit within liblumieracommon.so...
Display::~Display() { }
} // namespace lumiera
namespace lumiera {
namespace facade {
typedef InstanceHandle< LUMIERA_INTERFACE_INAME(lumieraorg_Display, 0)
, lumiera::Display
> IHandle_Display;
template<>
class Proxy<IHandle_Display>
: public Holder<IHandle_Display>
{
//----Proxy-Implementation-of-lumiera::Display--------
Display::Sink
getHandle (LumieraDisplaySlot display)
{
_i_.allocate (display);
Sink sinkHandle;
sinkHandle.activate (display, _i_.release);
if (lumiera_error_peek() || !sinkHandle)
throw lumiera::error::State("failed to allocate output DisplayerSlot",
lumiera_error());
return sinkHandle;
}
public:
Proxy (IHandle const& iha) : THolder(iha) {}
};
template void openProxy<IHandle_Display> (IHandle_Display const&);
template void closeProxy<IHandle_Display> (void);
} // namespace facade
} // namespace lumiera