X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fpacksource.cpp;h=b9f601668e44f13be8f7b5ae017d5dc13ed5be1d;hb=e1b8089be727f651fc2022d6e7ff775047730e85;hp=c06b270e30d8ecb4ef4fed14840989ae85e5e47f;hpb=b1bc25649c1f22abf940a807d934f1e9bb780c28;p=libs%2Fdatafile.git

diff --git a/source/packsource.cpp b/source/packsource.cpp
index c06b270..b9f6016 100644
--- a/source/packsource.cpp
+++ b/source/packsource.cpp
@@ -1,19 +1,103 @@
+#include <msp/io/slice.h>
 #include <msp/strings/format.h>
+#include <msp/strings/regex.h>
 #include "collection.h"
 #include "packsource.h"
 
 using namespace std;
 
+namespace {
+
+void delete_io(Msp::IO::Base *io)
+{
+	delete io;
+}
+
+}
+
 namespace Msp {
 namespace DataFile {
 
+PackSource::PackSource(const PackSource &other):
+	packs(other.packs),
+	files(other.files),
+	objects(other.objects)
+{
+	translate_maps(other);
+}
+
+PackSource &PackSource::operator=(const PackSource &other)
+{
+	packs = list<Pack>(other.packs.begin(), other.packs.end());
+	files = other.files;
+	objects = other.objects;
+	translate_maps(other);
+	return *this;
+}
+
+void PackSource::translate_maps(const PackSource &other)
+{
+	for(list<Pack>::const_iterator i=packs.begin(), j=other.packs.begin(); (i!=packs.end() && j!=other.packs.end()); ++i, ++j)
+		i->translate_files(files, *j);
+	for(FileMap::const_iterator i=files.begin(), j=other.files.begin(); (i!=files.end() && j!=other.files.end()); ++i, ++j)
+		i->second->translate_objects(objects, *j->second);
+}
+
 void PackSource::add_pack_file(const string &fn)
 {
-	packs.push_back(Pack(fn));
-	Pack &pack = packs.back();
-	DataFile::load(pack, fn);
+	add_pack_file(fn, string());
+}
 
-	pack.collect_objects(objects);
+void PackSource::add_pack_file(const string &fn, const string &filter)
+{
+	add_pack(0, fn, filter);
+}
+
+void PackSource::add_pack_io(IO::Seekable &io, const string &fn)
+{
+	add_pack(&io, fn, string());
+}
+
+void PackSource::add_pack_io(IO::Seekable &io, const string &fn, const string &filter)
+{
+	add_pack(&io, fn, filter);
+}
+
+void PackSource::add_pack(IO::Seekable *io, const string &fn, const string &filter)
+{
+	Pack *pack = 0;
+	for(list<Pack>::iterator i=packs.begin(); (!pack && i!=packs.end()); ++i)
+		if(i->get_filename()==fn || (io && i->get_io()==io))
+			pack = &*i;
+	if(!pack)
+	{
+		packs.push_back(Pack(io, fn));
+		pack = &packs.back();
+		if(io)
+		{
+			DataFile::Parser parser(*io, fn);
+			Pack::Loader loader(*pack);
+			loader.load(parser);
+		}
+		else
+			DataFile::load(*pack, fn);
+	}
+
+	FileMap pack_files;
+	pack->collect_files(pack_files, filter);
+	for(FileMap::const_iterator i=pack_files.begin(); i!=pack_files.end(); ++i)
+	{
+		files[i->first] = i->second;
+		i->second->collect_objects(objects);
+	}
+}
+
+list<PackSource::FileInfo> PackSource::list_files() const
+{
+	list<FileInfo> result;
+	for(FileMap::const_iterator i=files.begin(); i!=files.end(); ++i)
+		result.push_back(i->second->get_info());
+	return result;
 }
 
 bool PackSource::is_loadable(const CollectionItemTypeBase &type, const string &name) const
@@ -54,10 +138,7 @@ void PackSource::load(Collection &coll, const CollectionItemTypeBase &type, cons
 	if(i==objects.end())
 		return;
 
-	File &file = i->second->get_file();
-	if(file.is_loaded())
-		return;
-	file.set_loaded();
+	const File &file = i->second->get_file();
 
 	RefPtr<IO::Base> in = file.open();
 	Parser parser(*in, file.get_full_name());
@@ -70,16 +151,55 @@ void PackSource::load(Collection &coll, const CollectionItemTypeBase &type, cons
 		type.load_item(coll, parser, name);
 }
 
+IO::Seekable *PackSource::open(const string &fn) const
+{
+	FileMap::const_iterator i = files.find(fn);
+	if(i!=files.end())
+		return i->second->open().release();
+
+	return 0;
+}
 
-PackSource::Pack::Pack(const string &fn):
+
+PackSource::Pack::Pack(IO::Seekable *i, const string &fn):
 	filename(fn),
+	io(i),
 	base_offset(0)
 { }
 
-void PackSource::Pack::collect_objects(ObjectMap &objs) const
+PackSource::Pack::Pack(const Pack &other):
+	filename(other.filename),
+	io(other.io),
+	base_offset(other.base_offset)
+{
+	for(list<File>::const_iterator i=other.files.begin(); i!=other.files.end(); ++i)
+		files.push_back(File(*i, *this));
+}
+
+void PackSource::Pack::collect_files(FileMap &fm, const string &filter) const
+{
+	if(filter.empty())
+	{
+		for(list<File>::const_iterator i=files.begin(); i!=files.end(); ++i)
+			fm[i->get_filename()] = &*i;
+	}
+	else
+	{
+		Regex re(filter);
+		for(list<File>::const_iterator i=files.begin(); i!=files.end(); ++i)
+			if(re.match(i->get_filename()))
+				fm[i->get_filename()] = &*i;
+	}
+}
+
+void PackSource::Pack::translate_files(FileMap &fm, const Pack &source) const
 {
-	for(list<File>::const_iterator i=files.begin(); i!=files.end(); ++i)
-		i->collect_objects(objs);
+	for(list<File>::const_iterator i=files.begin(), j=source.files.begin(); (i!=files.end() && j!=source.files.end()); ++i, ++j)
+	{
+		FileMap::iterator k = fm.find(i->get_filename());
+		if(k!=fm.end() && k->second==&*j)
+			k->second = &*i;
+	}
 }
 
 
@@ -88,25 +208,45 @@ PackSource::File::File(const Pack &p, const string &fn):
 	filename(fn),
 	offset(0),
 	length(0),
-	collection(false),
-	loaded(false)
+	collection(false)
 { }
 
-RefPtr<IO::Base> PackSource::File::open() const
+PackSource::File::File(const File &other, const Pack &p):
+	pack(p),
+	filename(other.filename),
+	offset(other.offset),
+	length(other.length),
+	collection(other.collection)
+{
+	for(list<Object>::const_iterator i=other.objects.begin(); i!=other.objects.end(); ++i)
+		objects.push_back(Object(*i, *this));
+}
+
+RefPtr<IO::Seekable> PackSource::File::open() const
 {
-	RefPtr<IO::BufferedFile> io_file = new IO::BufferedFile(pack.get_filename());
-	io_file->seek(pack.get_base_offset()+offset, IO::S_BEG);
-	return io_file;
+	if(pack.get_io())
+		// TODO Performance may be poor without buffering
+		return new IO::Slice(*pack.get_io(), pack.get_base_offset()+offset, length);
+	else
+	{
+		IO::BufferedFile *io_file = new IO::BufferedFile(pack.get_filename());
+		IO::Slice *io_slice = new IO::Slice(*io_file, pack.get_base_offset()+offset, length);
+		io_slice->signal_deleted.connect(sigc::bind(sigc::ptr_fun(delete_io), io_file));
+		return io_slice;
+	}
 }
 
-string PackSource::File::get_full_name() const
+PackSource::FileInfo PackSource::File::get_info() const
 {
-	return format("%s/%s", pack.get_filename(), filename);
+	FileInfo info;
+	info.name = filename;
+	info.size = length;
+	return info;
 }
 
-void PackSource::File::set_loaded()
+string PackSource::File::get_full_name() const
 {
-	loaded = true;
+	return format("%s/%s", pack.get_filename(), filename);
 }
 
 void PackSource::File::collect_objects(ObjectMap &objs) const
@@ -115,13 +255,29 @@ void PackSource::File::collect_objects(ObjectMap &objs) const
 		objs[i->get_name()] = &*i;
 }
 
+void PackSource::File::translate_objects(ObjectMap &objs, const File &source) const
+{
+	for(list<Object>::const_iterator i=objects.begin(), j=source.objects.begin(); (i!=objects.end() && j!=source.objects.end()); ++i, ++j)
+	{
+		ObjectMap::iterator k = objs.find(i->get_name());
+		if(k!=objs.end() && k->second==&*j)
+			k->second = &*i;
+	}
+}
 
-PackSource::Object::Object(File &f, const string &n, const string &k):
+
+PackSource::Object::Object(const File &f, const string &n, const string &k):
 	file(f),
 	name(n),
 	keyword(k)
 { }
 
+PackSource::Object::Object(const Object &other, const File &f):
+	file(f),
+	name(other.name),
+	keyword(other.keyword)
+{ }
+
 
 PackSource::Pack::Loader::Loader(Pack &p):
 	ObjectLoader<Pack>(p)