scummvm/backends/base-backend.h
2023-08-14 00:40:42 +02:00

51 lines
1.7 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef BACKENDS_BASE_BACKEND_H
#define BACKENDS_BASE_BACKEND_H
#include "common/system.h"
#include "common/events.h"
/**
* Subclass of OSystem that contains default implementations of functions that would
* cause circular dependencies if they were implemented in common/system.cpp
*/
class BaseBackend : public OSystem {
public:
void initBackend() override;
using OSystem::setScaler;
bool setScaler(const char *name, int factor) override final;
void displayMessageOnOSD(const Common::U32String &msg) override;
void displayActivityIconOnOSD(const Graphics::Surface *icon) override {}
void fillScreen(uint32 col) override;
void fillScreen(const Common::Rect &r, uint32 col) override;
};
class EventsBaseBackend : virtual public BaseBackend, Common::EventSource {
public:
virtual void initBackend();
};
#endif