scummvm/engines/wintermute/ext/plugin_event.h
2024-11-17 14:07:34 +01:00

89 lines
2.3 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 WINTERMUTE_PLUGIN_EVENT_H
#define WINTERMUTE_PLUGIN_EVENT_H
namespace Wintermute {
//////////////////////////////////////////////////////////////////////////
// WME events
typedef enum {
WME_EVENT_UPDATE = 0,
WME_EVENT_SCENE_DRAW_BEGIN,
WME_EVENT_SCENE_DRAW_END,
WME_EVENT_SCENE_INIT,
WME_EVENT_SCENE_SHUTDOWN,
WME_EVENT_GAME_BEFORE_SAVE,
WME_EVENT_GAME_AFTER_LOAD,
WME_EVENT_MAX
} EWmeEvent;
typedef void (*PluginApplyEvent)(void *, void *);
typedef struct _PluginEventEntry {
EWmeEvent _type;
PluginApplyEvent _callback;
void *_plugin;
} PluginEventEntry;
class PluginEvent {
public:
PluginEvent() {};
~PluginEvent() {};
void subscribeEvent(PluginEventEntry &event) {
for (auto it = _entries.begin(); it != _entries.end(); ++it) {
if (event._type == (*it)._type && event._callback == (*it)._callback) {
break;
}
}
_entries.push_back(event);
}
void unsubscribeEvent(PluginEventEntry &event) {
for (auto it = _entries.begin(); it != _entries.end(); ++it) {
if (event._type == (*it)._type && event._callback == (*it)._callback) {
_entries.erase(it);
break;
}
}
}
void applyEvent(EWmeEvent type, void *eventData) {
for (auto it = _entries.begin(); it != _entries.end(); ++it) {
if (type == (*it)._type && (*it)._callback != nullptr) {
(*it)._callback(eventData, (*it)._plugin);
}
}
}
void clearEvents() {
_entries.clear();
}
private:
Common::List<PluginEventEntry> _entries;
};
} // End of namespace Wintermute
#endif