///Предварительный разбор
void Prepare (const ParseNode& decl)
{
for (Parser::Iterator iter=decl.First (); iter; ++iter)
{
try
{
ParseNode decl = *iter;
const char* type = decl.Name ();
ParserMap::iterator iter = parsers.find (type);
if (iter == parsers.end () || !iter->second.prepare_handler)
continue; //игнорирование неизвестных узлов
iter->second.prepare_handler (decl);
}
catch (common::ParserException&)
{
//игнорирование, протоколирование уже произведено
}
catch (std::exception& e)
{
root.Log ().Error (*iter, "%s", e.what ());
}
catch (...)
{
root.Log ().Error (*iter, "unknown exception");
}
}
prepared = true;
}
SpriteDeclPtr XmlSceneParser::Impl::PrepareSprite (const ParseNode& decl)
{
try
{
//попытка найти параметры в кеше
if (SpriteDeclPtr* node_decl_ptr = cache.FindValue<SpriteDeclPtr> (decl))
return *node_decl_ptr;
SpriteDeclPtr node_decl (new SpriteDecl, false);
node_decl->color.Parse (decl, "color");
node_decl->alpha.Parse (decl, "alpha");
node_decl->mode.Parse (decl, "mode");
node_decl->usage.Parse (decl, "usage");
node_decl->up.Parse (decl, "up");
node_decl->material = get<const char*> (decl, "material", "");
if (ParseNode layout_node = decl.First ("layout"))
node_decl->layout.reset (new stl::string (get<const char*> (layout_node, "")));
//регистрация дескриптора узла
cache.SetValue (decl, node_decl);
return node_decl;
}
catch (xtl::exception& e)
{
e.touch ("scene_graph::XmlSceneParser::Impl::PrepareSprite");
throw;
}
}
///Конструктор
SceneRenderServerSubsystem (ParseNode& node)
{
const char* name = get<const char*> (node, "Id");
const char* threading_model_name = get<const char*> (node, "ThreadingModel", "SingleThreaded");
ServerThreadingModel threading_model = ServerThreadingModel_SingleThreaded;
if (!strcmp (threading_model_name, "MultiThreaded")) threading_model = ServerThreadingModel_MultiThreaded;
else if (!strcmp (threading_model_name, "SingleThreaded")) threading_model = ServerThreadingModel_SingleThreaded;
else common::raise_parser_exception (node.First ("ThreadingModel"), "Invalid threading model '%s'", threading_model_name);
const char *driver_mask = get<const char*> (node, "DriverMask", (const char*)0),
*adapter_mask = get<const char*> (node, "AdapterMask", (const char*)0),
*init_string = get<const char*> (node, "InitString", (const char*)0);
server.reset (new Server (name, threading_model));
for (Parser::NamesakeIterator iter=node.First ("RenderTarget"); iter; ++iter)
{
const char* attachment = get<const char*> (*iter, "Window");
const char* name = get<const char*> (*iter, "Id", attachment);
syslib::Window& window = AttachmentRegistry::Get<syslib::Window> (attachment);
common::PropertyMap properties = to_properties (*iter);
if (driver_mask) properties.SetProperty ("DriverMask", driver_mask);
if (adapter_mask) properties.SetProperty ("AdapterMask", adapter_mask);
if (init_string) properties.SetProperty ("InitString", init_string);
server->AttachWindow (name, window, properties);
}
}
void XmlSceneParser::Parse (const ParseNode& decl, Node& parent, SceneContext& context)
{
try
{
for (Parser::Iterator iter=decl.First (); iter; ++iter)
{
try
{
ParseNode decl = *iter;
const char* type = decl.Name ();
Impl::ParserMap::iterator iter = impl->parsers.find (type);
if (iter == impl->parsers.end () || !iter->second.parse_handler)
continue; //игнорирование неизвестных узлов
iter->second.parse_handler (decl, parent, context);
}
catch (std::exception& e)
{
if (!context.FilterError (e.what ()))
throw;
print_log (context.LogHandler (), e.what ());
}
catch (...)
{
static const char* ERROR_STRING = "unknown exception";
if (!context.FilterError (ERROR_STRING))
throw;
print_log (context.LogHandler (), ERROR_STRING);
}
}
}
catch (xtl::exception& e)
{
e.touch ("scene_graph::XmlSceneParser::ParseDispatch");
throw;
}
}
///Конструктор
WindowInputDriverSubsystem (ParseNode& node)
{
for (Parser::NamesakeIterator iter=node.First ("Device"); iter; ++iter)
devices.push_back (DevicePtr (new WindowDevice (*iter), false));
}
NodeDeclPtr XmlSceneParser::Impl::PrepareNode (const ParseNode& decl)
{
try
{
//попытка найти параметры в кеше
if (NodeDeclPtr* node_decl_ptr = cache.FindValue<NodeDeclPtr> (decl))
return *node_decl_ptr;
NodeDeclPtr node_decl (new NodeDecl, false);
//парсинг базовых свойств
node_decl->name = get<const char*> (decl, "id", "");
//парсинг точки поворота
if (decl.First ("pivot"))
{
stl::auto_ptr<NodeDecl::Pivot> pivot (new NodeDecl::Pivot);
ParseAttribute (decl, "pivot", pivot->position);
pivot->has_orientation_pivot = strcmp (get<const char*> (decl, "orientation_pivot", "true"), "true") == 0;
pivot->has_scale_pivot = strcmp (get<const char*> (decl, "scale_pivot", "true"), "true") == 0;
node_decl->pivot = pivot;
}
//парсинг трансформаций
node_decl->is_world_transform = strcmp (get<const char*> (decl, "bind_space", "local"), "world") == 0;
if (ParseNode tm_node = decl.First ("transform"))
{
math::mat4f tm;
ParseAttribute (tm_node, "", tm);
affine_decompose (tm, node_decl->position, node_decl->orientation, node_decl->scale);
}
else
{
ParseAttribute (decl, "position", node_decl->position);
ParseAttribute (decl, "scale", node_decl->scale);
if (ParseNode rotation_node = decl.First ("rotation"))
{
float rotation [3] = {0.0f, 0.0f, 0.0f};
ParseAttribute (rotation_node, "", 3, &rotation [0]);
node_decl->orientation = to_quat (degree (rotation [0]), degree (rotation [1]), degree (rotation [2]));
}
else
{
ParseAttribute (decl, "orientation", node_decl->orientation);
}
}
node_decl->orientation_inherit = strcmp (get<const char*> (decl, "orientation_inherit", "true"), "true") == 0;
node_decl->scale_inherit = strcmp (get<const char*> (decl, "scale_inherit", "true"), "true") == 0;
//парсинг пользовательских свойств
PropertyMap* properties = 0;
if (decl.First ("property"))
node_decl->properties.reset (properties = new PropertyMap);
for (Parser::NamesakeIterator iter = decl.First ("property"); iter; ++iter)
{
ParseNode property_decl = *iter;
const char* name = get<const char*> (property_decl, "name");
PropertyType type = get_property_type (property_decl.First ("type"));
size_t property_index = properties->AddProperty (name, type, 1);
stl::string value = get<const char*> (property_decl, "value");
properties->SetProperty (property_index, value.c_str ());
}
//парсинг after node
if (ParseNode before_node_decl = decl.First ("before_node"))
{
node_decl->before_node.reset (new stl::string);
*node_decl->before_node = get<const char*> (before_node_decl, "");
}
//парсинг привязки к родителю
if (ParseNode parent_name_decl = decl.First ("parent"))
{
node_decl->parent_name.reset (new stl::string);
*node_decl->parent_name = get<const char*> (parent_name_decl, "");
}
//регистрация дескриптора узла
cache.SetValue (decl, node_decl);
return node_decl;
}
catch (xtl::exception& e)
{
e.touch ("scene_graph::XmlSceneParser::Impl::PrepareNode");
throw;
}
}
