LUMIERA.clone/src/include/guinotification-facade.h

99 lines
3 KiB
C++

/*
GUINOTIFICATION-FACADE.h - access point for pushing informations into the GUI
Copyright (C) Lumiera.org
2008, 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 guinotification-facade.h
** Major public Interface of the Lumiera GUI. While generally speaking, the GUI
** controls the application and thus acts on its own, it exposes some services
** usable by scripts or the two lower layers. The main purpose of these services
** is to push informations and status updates into the GUI.
**
** @see gui::GuiFacade
** @see main.cpp
*/
#ifndef GUI_GUINOTIFICATION_H
#define GUI_GUINOTIFICATION_H
#ifdef __cplusplus /* ============== C++ Interface ================= */
#include "include/interfaceproxy.hpp"
#include <string>
namespace gui {
using std::string;
/*********************************************************************
* Global access point to push state update and notification of events
* from the lower layers into the Lumiera GUI. Typically, this happens
* asynchronously and triggered by events within the lower layers.
*
* This is a layer separation facade interface. Clients should use
* the embedded #facade factory, which yields a proxy routing any
* calls through the lumieraorg_GuiNotification interface
* @throws lumiera::error::State when interface is not opened
*/
class GuiNotification
{
public:
static lumiera::facade::Accessor<GuiNotification> facade;
/** push a user visible notification text */
virtual void displayInfo (string const& text) =0;
/** causes the GUI to shut down unconditionally
* @param cause user visible explanation of the
* reason causing this shutdown */
virtual void triggerGuiShutdown (string const& cause) =0;
protected:
virtual ~GuiNotification() {}
};
} // namespace gui
extern "C" {
#endif /* =========================== CL Interface ===================== */
#include "common/interface.h"
LUMIERA_INTERFACE_DECLARE (lumieraorg_GuiNotification, 0,
LUMIERA_INTERFACE_SLOT (void, displayInfo, (const char*)),
LUMIERA_INTERFACE_SLOT (void, triggerGuiShutdown, (const char*)),
);
#ifdef __cplusplus
}
#endif
#endif