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/* 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "cached_source_listing_provider.h"
#include "basic_source_listing_provider.h"
#include "blank_listing_provider.h"
#include "source_listing.h"
namespace Wintermute {
CachedSourceListingProvider::CachedSourceListingProvider() {
_sourceListingProvider = new BasicSourceListingProvider();
_fallbackListingProvider = new BlankListingProvider();
}
CachedSourceListingProvider::~CachedSourceListingProvider() {
delete _sourceListingProvider;
delete _fallbackListingProvider;
for (Common::HashMap<Common::String, SourceListing*>::iterator it = _cached.begin();
it != _cached.end(); it++) {
delete (it->_value);
}
}
Listing *CachedSourceListingProvider::getListing(const Common::String &filename, Wintermute::ErrorCode &error) {
if (_cached.contains(filename)) {
error = OK;
SourceListing *copy = new SourceListing(*_cached.getVal(filename));
return copy;
} else {
ErrorCode inner;
SourceListing *res = _sourceListingProvider->getListing(filename, inner);
if (inner == OK) {
SourceListing *copy = new SourceListing(*res);
_cached.setVal(filename, copy); // The cached copy is deleted on destruction
return res;
} else {
delete res;
return _fallbackListingProvider->getListing(filename, error);
}
}
}
void CachedSourceListingProvider::invalidateCache() {
for (Common::HashMap<Common::String, SourceListing*>::iterator it = _cached.begin();
it != _cached.end(); it++) {
delete (it->_value);
}
_cached.clear();
}
ErrorCode CachedSourceListingProvider::setPath(const Common::String &path) {
invalidateCache();
return _sourceListingProvider->setPath(path);
}
Common::String CachedSourceListingProvider::getPath() const {
return _sourceListingProvider->getPath();
}
} // End of namespace Wintermute
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