X-Git-Url: http://git.tdb.fi/?p=libs%2Fdatafile.git;a=blobdiff_plain;f=source%2Fcollection.cpp;h=9f135f0c0ed8eab31c6ffe730b23fd683b69e98e;hp=2a567b58ce4af5271f553b58611ee8a43e29dd5c;hb=5e677b2b3eeb2b3c41216a329f7b1363aade0aed;hpb=cbd0ddd6ee033e46646bfb85d19232c816ea1eda

diff --git a/source/collection.cpp b/source/collection.cpp
index 2a567b5..9f135f0 100644
--- a/source/collection.cpp
+++ b/source/collection.cpp
@@ -1,37 +1,183 @@
-/* $Id$
-
-This file is part of libmspdatafile
-Copyright © 2006  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
+#include <set>
 #include "collection.h"
 
+using namespace std;
+
 namespace Msp {
 namespace DataFile {
 
+Collection::Collection():
+	fallback(0)
+{ }
+
 Collection::~Collection()
 {
-	for(ItemMap::iterator i = items.begin(); i!=items.end(); ++i)
-		delete i->second;
-	for(ItemKeywordSeq::iterator i = keywords.begin(); i!=keywords.end(); ++i)
-		delete *i;
-	for(ItemCreatorSeq::iterator i = creators.begin(); i!=creators.end(); ++i)
+	for(TypeList::iterator i = types.begin(); i!=types.end(); ++i)
 		delete *i;
 }
 
-bool Collection::contains(const std::string &n) const
+const Variant &Collection::get_var(const string &name, const CollectionItemTypeBase *type)
+{
+	ItemMap::iterator i = items.find(name);
+	if(i!=items.end())
+		return i->second;
+
+	if(type)
+	{
+		bool loaded = false;
+		if(type->can_create())
+		{
+			type->create_item(*this, name);
+			loaded = items.count(name);
+		}
+		for(SourceList::iterator j=sources.begin(); (!loaded && j!=sources.end()); ++j)
+		{
+			(*j)->load(*this, *type, name);
+			loaded = items.count(name);
+		}
+		if(!loaded && fallback)
+			if(CollectionItemTypeBase *fb_type = fallback->get_type(*type))
+				if(fallback->get_status(name, *fb_type))
+					return fallback->get_var(name, fb_type);
+	}
+
+	return get_item(items, name);
+}
+
+void Collection::gather_items(list<const Variant *> *vars, list<string> *names, const CollectionItemTypeBase &type, bool include_sources) const
+{
+	for(ItemMap::const_iterator i=items.begin(); i!=items.end(); ++i)
+		if(type.check_item_type(i->second))
+		{
+			if(vars)
+				vars->push_back(&i->second);
+			if(names)
+				names->push_back(i->first);
+		}
+
+	if(include_sources && names)
+		gather_names_from_sources(*names, type);
+}
+
+unsigned Collection::get_status(const string &name, const CollectionItemTypeBase &type) const
 {
-	return items.count(n);
+	ItemMap::const_iterator i = items.find(name);
+	if(i==items.end())
+	{
+		for(SourceList::const_iterator j=sources.begin(); j!=sources.end(); ++j)
+			if((*j)->is_loadable(type, name))
+				return 2;
+		if(fallback)
+			if(CollectionItemTypeBase *fb_type = fallback->get_type(type))
+				return fallback->get_status(name, *fb_type);
+		return 0;
+	}
+
+	return type.check_item_type(i->second);
+}
+
+CollectionItemTypeBase *Collection::get_type(const CollectionItemTypeBase &type) const
+{
+	for(TypeList::const_iterator j=types.begin(); j!=types.end(); ++j)
+		if((*j)->is_same_type(type))
+			return *j;
+	return 0;
+}
+
+CollectionItemTypeBase *Collection::get_type_for_item(const Variant &var) const
+{
+	for(TypeList::const_iterator i=types.begin(); i!=types.end(); ++i)
+		if((*i)->check_item_type(var))
+			return *i;
+	return 0;
+}
+
+void Collection::add_source(const CollectionSource &s)
+{
+	sources.push_back(&s);
+}
+
+IO::Seekable *Collection::open_raw(const string &name) const
+{
+	for(SourceList::const_iterator i=sources.begin(); i!=sources.end(); ++i)
+		if(IO::Seekable *io = (*i)->open(name))
+			return io;
+
+	return 0;
+}
+
+void Collection::gather_names_from_sources(list<string> &names, const CollectionItemTypeBase &type) const
+{
+	set<string> new_names;
+	for(SourceList::const_iterator i=sources.begin(); i!=sources.end(); ++i)
+	{
+		std::list<std::string> available_names = (*i)->get_names(type);
+		for(std::list<std::string>::iterator j=available_names.begin(); j!=available_names.end(); ++j)
+			if(!items.count(*j))
+				new_names.insert(*j);
+	}
+	names.insert(names.end(), new_names.begin(), new_names.end());
+}
+
+void Collection::load_items_from_sources(const CollectionItemTypeBase &type)
+{
+	for(SourceList::const_iterator i=sources.begin(); i!=sources.end(); ++i)
+	{
+		std::list<std::string> available_names = (*i)->get_names(type);
+		for(std::list<std::string>::iterator j=available_names.begin(); j!=available_names.end(); ++j)
+			if(!items.count(*j))
+			{
+				bool loaded = false;
+				if(type.can_create())
+				{
+					type.create_item(*this, *j);
+					loaded = items.count(*j);
+				}
+				if(!loaded)
+					(*i)->load(*this, type, *j);
+			}
+	}
+}
+
+void Collection::set_fallback(Collection *f)
+{
+	fallback = f;
 }
 
 
 Collection::Loader::Loader(Collection &c):
 	coll(c)
 {	
-	for(ItemKeywordSeq::const_iterator i = coll.keywords.begin(); i!=coll.keywords.end(); ++i)
+	for(TypeList::const_iterator i = coll.types.begin(); i!=coll.types.end(); ++i)
 		(*i)->add_to_loader(*this);
 }
 
+
+CollectionItemTypeBase::~CollectionItemTypeBase()
+{
+	for(vector<ExtractorBase *>::iterator i=extractors.begin(); i!=extractors.end(); ++i)
+		delete *i;
+}
+
+void CollectionItemTypeBase::set_keyword(const string &k)
+{
+	kwd = k;
+	if(suffixes.empty())
+		add_suffix("."+kwd);
+}
+
+void CollectionItemTypeBase::add_suffix(const string &s)
+{
+	suffixes.push_back(s);
+}
+
+bool CollectionItemTypeBase::match_name(const string &name) const
+{
+	for(vector<string>::const_iterator i=suffixes.begin(); i!=suffixes.end(); ++i)
+		if(name.size()>i->size() && !name.compare(name.size()-i->size(), string::npos, *i))
+			return true;
+	return false;
+}
+
 } // namespace DataFile
 } // namespace Msp