scummvm/engines/mtropolis/element_factory.cpp
2022-07-22 17:32:58 -04:00

84 lines
3.1 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/>.
*
*/
#include "mtropolis/element_factory.h"
#include "mtropolis/elements.h"
#include "mtropolis/runtime.h"
namespace MTropolis {
ElementLoaderContext::ElementLoaderContext(Runtime *elc_runtime, size_t elc_streamIndex) : runtime(elc_runtime), streamIndex(elc_streamIndex) {
}
template<typename TElement, typename TElementData>
class ElementFactory {
public:
static Common::SharedPtr<Element> createElement(ElementLoaderContext &context, const Data::DataObject &dataObject);
static SIElementFactory *getInstance();
private:
static SIElementFactory _instance;
};
template<typename TElement, typename TElementData>
Common::SharedPtr<Element> ElementFactory<TElement, TElementData>::createElement(ElementLoaderContext &context, const Data::DataObject &dataObject) {
Common::SharedPtr<TElement> element(new TElement());
if (!element->load(context, static_cast<const TElementData &>(dataObject)))
element.reset();
else
element->setSelfReference(element);
return Common::SharedPtr<Element>(element);
}
template<typename TElement, typename TElementData>
SIElementFactory *ElementFactory<TElement, TElementData>::getInstance() {
return &_instance;
}
template<typename TElement, typename TElementData>
SIElementFactory ElementFactory<TElement, TElementData>::_instance = {
ElementFactory<TElement, TElementData>::createElement
};
SIElementFactory *getElementFactoryForDataObjectType(const Data::DataObjectTypes::DataObjectType dataObjectType) {
switch (dataObjectType) {
case Data::DataObjectTypes::kGraphicElement:
return ElementFactory<GraphicElement, Data::GraphicElement>::getInstance();
case Data::DataObjectTypes::kMovieElement:
return ElementFactory<MovieElement, Data::MovieElement>::getInstance();
case Data::DataObjectTypes::kImageElement:
return ElementFactory<ImageElement, Data::ImageElement>::getInstance();
case Data::DataObjectTypes::kMToonElement:
return ElementFactory<MToonElement, Data::MToonElement>::getInstance();
case Data::DataObjectTypes::kTextLabelElement:
return ElementFactory<TextLabelElement, Data::TextLabelElement>::getInstance();
case Data::DataObjectTypes::kSoundElement:
return ElementFactory<SoundElement, Data::SoundElement>::getInstance();
default:
return nullptr;
}
}
} // End of namespace MTropolis