X-Git-Url: http://git.tdb.fi/?p=libs%2Fgltk.git;a=blobdiff_plain;f=source%2Fpartcache.cpp;h=3c3fbb169e3e2c20b707f20b6bdb25f656fc94fd;hp=4747cb50b3e585fd45bb6a5be8fe864bd2937266;hb=caa04d76bc031dd0c4a4157732deb340d934ceeb;hpb=2a665655a15f73d59083fd5cc7e5a58ae5f4d377

diff --git a/source/partcache.cpp b/source/partcache.cpp
index 4747cb5..3c3fbb1 100644
--- a/source/partcache.cpp
+++ b/source/partcache.cpp
@@ -18,8 +18,16 @@ CachedPart::~CachedPart()
 }
 
 
+PartCache::PartCache():
+	rebuilding(false)
+{ }
+
 void PartCache::begin_rebuild()
 {
+	if(rebuilding)
+		throw logic_error("nested rebuild");
+	rebuilding = true;
+
 	next = parts.begin();
 	current = parts.end();
 }
@@ -28,6 +36,8 @@ void PartCache::insert_special(const Part &part)
 {
 	if(part.get_name().empty())
 		throw invalid_argument("PartCache::insert_special");
+	if(!rebuilding)
+		throw logic_error("!rebuilding");
 
 	for(current=next; current!=parts.end(); ++current)
 		if(current->part==&part)
@@ -48,6 +58,9 @@ void PartCache::insert_special(const Part &part)
 
 GL::Mesh &PartCache::create_mesh(const Part &part, const GL::Texture2D &tex)
 {
+	if(!rebuilding)
+		throw logic_error("!rebuilding");
+
 	if(current!=parts.end() && current->texture==&tex)
 		return *current->mesh;
 
@@ -76,6 +89,7 @@ GL::Mesh &PartCache::create_mesh(const Part &part, const GL::Texture2D &tex)
 
 void PartCache::end_rebuild()
 {
+	rebuilding = false;
 	parts.erase(next, parts.end());
 }