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godot/core/object.cpp
Juan Linietsky 0b806ee0fc GODOT IS OPEN SOURCE
2014-02-09 22:10:30 -03:00

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/*************************************************************************/
/* object.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "object.h"
#include "print_string.h"
#include "object_type_db.h"
#include "script_language.h"
#include "message_queue.h"
#include "core_string_names.h"
#include "translation.h"
Array convert_property_list(const List<PropertyInfo> * p_list) {
Array va;
for (const List<PropertyInfo>::Element *E=p_list->front();E;E=E->next()) {
const PropertyInfo &pi = E->get();
Dictionary d;
d["name"]=pi.name;
d["type"]=pi.type;
d["hint"]=pi.hint;
d["hint_string"]=pi.hint_string;
d["usage"]=pi.usage;
va.push_back(d);
}
return va;
}
MethodInfo::MethodInfo() {
id=0;
flags=METHOD_FLAG_NORMAL;
}
MethodInfo::MethodInfo(const String& p_name) {
id=0;
name=p_name;
flags=METHOD_FLAG_NORMAL;
}
MethodInfo::MethodInfo(const String& p_name, const PropertyInfo& p_param1) {
id=0;
name=p_name;
arguments.push_back( p_param1 );
flags=METHOD_FLAG_NORMAL;
}
MethodInfo::MethodInfo(const String& p_name, const PropertyInfo& p_param1,const PropertyInfo& p_param2) {
id=0;
name=p_name;
arguments.push_back( p_param1 );
arguments.push_back( p_param2 );
flags=METHOD_FLAG_NORMAL;
}
MethodInfo::MethodInfo(const String& p_name, const PropertyInfo& p_param1,const PropertyInfo& p_param2,const PropertyInfo& p_param3) {
id=0;
name=p_name;
arguments.push_back( p_param1 );
arguments.push_back( p_param2 );
arguments.push_back( p_param3 );
flags=METHOD_FLAG_NORMAL;
}
MethodInfo::MethodInfo(const String& p_name, const PropertyInfo& p_param1,const PropertyInfo& p_param2,const PropertyInfo& p_param3,const PropertyInfo& p_param4) {
id=0;
name=p_name;
arguments.push_back( p_param1 );
arguments.push_back( p_param2 );
arguments.push_back( p_param3 );
arguments.push_back( p_param4 );
flags=METHOD_FLAG_NORMAL;
}
MethodInfo::MethodInfo(const String& p_name, const PropertyInfo& p_param1,const PropertyInfo& p_param2,const PropertyInfo& p_param3,const PropertyInfo& p_param4,const PropertyInfo& p_param5) {
id=0;
name=p_name;
arguments.push_back( p_param1 );
arguments.push_back( p_param2 );
arguments.push_back( p_param3 );
arguments.push_back( p_param4 );
arguments.push_back( p_param5 );
flags=METHOD_FLAG_NORMAL;
}
MethodInfo::MethodInfo(Variant::Type ret) {
id=0;
flags=METHOD_FLAG_NORMAL;
return_val.type=ret;
}
MethodInfo::MethodInfo(Variant::Type ret,const String& p_name) {
id=0;
name=p_name;
flags=METHOD_FLAG_NORMAL;
return_val.type=ret;
}
MethodInfo::MethodInfo(Variant::Type ret,const String& p_name, const PropertyInfo& p_param1) {
id=0;
name=p_name;
arguments.push_back( p_param1 );
flags=METHOD_FLAG_NORMAL;
return_val.type=ret;
}
MethodInfo::MethodInfo(Variant::Type ret,const String& p_name, const PropertyInfo& p_param1,const PropertyInfo& p_param2) {
id=0;
name=p_name;
arguments.push_back( p_param1 );
arguments.push_back( p_param2 );
flags=METHOD_FLAG_NORMAL;
return_val.type=ret;
}
MethodInfo::MethodInfo(Variant::Type ret,const String& p_name, const PropertyInfo& p_param1,const PropertyInfo& p_param2,const PropertyInfo& p_param3) {
id=0;
name=p_name;
arguments.push_back( p_param1 );
arguments.push_back( p_param2 );
arguments.push_back( p_param3 );
flags=METHOD_FLAG_NORMAL;
return_val.type=ret;
}
MethodInfo::MethodInfo(Variant::Type ret,const String& p_name, const PropertyInfo& p_param1,const PropertyInfo& p_param2,const PropertyInfo& p_param3,const PropertyInfo& p_param4) {
id=0;
name=p_name;
arguments.push_back( p_param1 );
arguments.push_back( p_param2 );
arguments.push_back( p_param3 );
arguments.push_back( p_param4 );
flags=METHOD_FLAG_NORMAL;
return_val.type=ret;
}
MethodInfo::MethodInfo(Variant::Type ret,const String& p_name, const PropertyInfo& p_param1,const PropertyInfo& p_param2,const PropertyInfo& p_param3,const PropertyInfo& p_param4,const PropertyInfo& p_param5) {
id=0;
name=p_name;
arguments.push_back( p_param1 );
arguments.push_back( p_param2 );
arguments.push_back( p_param3 );
arguments.push_back( p_param4 );
arguments.push_back( p_param5 );
flags=METHOD_FLAG_NORMAL;
return_val.type=ret;
}
Object::Connection::operator Variant() const {
Dictionary d;
d["source"]=source;
d["signal"]=signal;
d["target"]=target;
d["method"]=method;
d["flags"]=flags;
d["binds"]=binds;
return d;
}
bool Object::Connection::operator<(const Connection& p_conn) const {
if (source==p_conn.source) {
if (signal == p_conn.signal) {
if (target == p_conn.target) {
return method < p_conn.method;
} else {
return target < p_conn.target;
}
} else
return signal < p_conn.signal;
} else {
return source<p_conn.source;
}
}
Object::Connection::Connection(const Variant& p_variant) {
Dictionary d=p_variant;
if (d.has("source"))
source=d["source"];
if (d.has("signal"))
signal=d["signal"];
if (d.has("target"))
target=d["target"];
if (d.has("method"))
method=d["method"];
if (d.has("flags"))
flags=d["flags"];
if (d.has("binds"))
binds=d["binds"];
}
bool Object::_predelete() {
_predelete_ok=1;
notification(NOTIFICATION_PREDELETE,true);
return _predelete_ok;
}
void Object::_postinitialize() {
_initialize_typev();
notification(NOTIFICATION_POSTINITIALIZE);
}
void Object::get_valid_parents_static(List<String> *p_parents) {
}
void Object::_get_valid_parents_static(List<String> *p_parents) {
}
#if 0
//old style set, deprecated
void Object::set(const String& p_name, const Variant& p_value) {
_setv(p_name,p_value);
//if (!_use_builtin_script())
// return;
bool success;
ObjectTypeDB::set_property(this,p_name,p_value,success);
if (success) {
return;
}
if (p_name=="__meta__") {
metadata=p_value;
} else if (p_name=="script/script") {
set_script(p_value);
} else if (script_instance) {
script_instance->set(p_name,p_value);
}
}
#endif
void Object::set(const StringName& p_name, const Variant& p_value, bool *r_valid) {
#ifdef TOOLS_ENABLED
_edited=true;
#endif
if (script_instance) {
if (script_instance->set(p_name,p_value)) {
if (r_valid)
*r_valid=true;
return;
}
}
//try built-in setgetter
{
if (ObjectTypeDB::set_property(this,p_name,p_value)) {
if (r_valid)
*r_valid=true;
return;
}
}
if (p_name==CoreStringNames::get_singleton()->_script) {
set_script(p_value);
if (r_valid)
*r_valid=true;
return;
} else if (p_name==CoreStringNames::get_singleton()->_meta) {
//set_meta(p_name,p_value);
metadata=p_value;
if (r_valid)
*r_valid=true;
return;
} else {
//something inside the object... :|
bool success = _setv(p_name,p_value);
if (success) {
if (r_valid)
*r_valid=true;
return;
}
setvar(p_name,p_value,r_valid);
}
}
Variant Object::get(const StringName& p_name, bool *r_valid) const{
Variant ret;
if (script_instance) {
if (script_instance->get(p_name,ret)) {
if (r_valid)
*r_valid=true;
return ret;
}
}
//try built-in setgetter
{
if (ObjectTypeDB::get_property(const_cast<Object*>(this),p_name,ret)) {
if (r_valid)
*r_valid=true;
return ret;
}
}
if (p_name==CoreStringNames::get_singleton()->_script) {
ret = get_script();
if (r_valid)
*r_valid=true;
return ret;
} else if (p_name==CoreStringNames::get_singleton()->_meta) {
ret = metadata;
if (r_valid)
*r_valid=true;
return ret;
} else {
//something inside the object... :|
bool success = _getv(p_name,ret);
if (success) {
if (r_valid)
*r_valid=true;
return ret;
}
//if nothing else, use getvar
return getvar(p_name,r_valid);
}
}
#if 0
//old style get, deprecated
Variant Object::get(const String& p_name) const {
Variant ret=_getv(p_name);
if (ret.get_type()!=Variant::NIL)
return ret;
bool success;
ObjectTypeDB::get_property(const_cast<Object*>(this),p_name,ret,success);
if (success) {
return ret;
}
if (p_name=="__meta__")
return metadata;
else if (p_name=="script/script")
return script;
if (script_instance) {
return script_instance->get(p_name);
}
return Variant();
}
#endif
void Object::get_property_list(List<PropertyInfo> *p_list,bool p_reversed) const {
if (script_instance && p_reversed) {
p_list->push_back( PropertyInfo(Variant::NIL,"Script Variables",PROPERTY_HINT_NONE,String(),PROPERTY_USAGE_CATEGORY));
script_instance->get_property_list(p_list);
}
_get_property_listv(p_list,p_reversed);
if (!_use_builtin_script())
return;
if (!is_type("Script")) // can still be set, but this is for userfriendlyness
p_list->push_back( PropertyInfo( Variant::OBJECT, "script/script", PROPERTY_HINT_RESOURCE_TYPE, "Script",PROPERTY_USAGE_DEFAULT|PROPERTY_USAGE_STORE_IF_NONZERO));
if (!metadata.empty())
p_list->push_back( PropertyInfo( Variant::DICTIONARY, "__meta__", PROPERTY_HINT_NONE,"",PROPERTY_USAGE_NOEDITOR|PROPERTY_USAGE_STORE_IF_NONZERO));
if (script_instance && !p_reversed) {
p_list->push_back( PropertyInfo(Variant::NIL,"Script Variables",PROPERTY_HINT_NONE,String(),PROPERTY_USAGE_CATEGORY));
script_instance->get_property_list(p_list);
}
}
void Object::get_method_list(List<MethodInfo> *p_list) const {
ObjectTypeDB::get_method_list(get_type_name(),p_list);
if (script_instance) {
script_instance->get_method_list(p_list);
}
}
Variant Object::_call_bind(const Variant** p_args, int p_argcount, Variant::CallError& r_error) {
if (p_argcount<1) {
r_error.error=Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
r_error.argument=0;
return Variant();
}
if (p_args[0]->get_type()!=Variant::STRING) {
r_error.error=Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
r_error.argument=0;
r_error.expected=Variant::STRING;
return Variant();
}
StringName method = *p_args[0];
return call(method,&p_args[1],p_argcount-1,r_error);
}
Variant Object::_call_deferred_bind(const Variant** p_args, int p_argcount, Variant::CallError& r_error) {
if (p_argcount<1) {
r_error.error=Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
r_error.argument=0;
return Variant();
}
if (p_args[0]->get_type()!=Variant::STRING) {
r_error.error=Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
r_error.argument=0;
r_error.expected=Variant::STRING;
return Variant();
}
r_error.error=Variant::CallError::CALL_OK;
StringName signal = *p_args[0];
Variant v[VARIANT_ARG_MAX];
for(int i=0;i<MIN(5,p_argcount-1);i++) {
v[i]=*p_args[i+1];
}
call_deferred(signal,v[0],v[1],v[2],v[3],v[4]);
return Variant();
}
#if 0
Variant Object::_call_bind(const StringName& p_name, const Variant& p_arg1, const Variant& p_arg2, const Variant& p_arg3, const Variant& p_arg4) {
ERR_FAIL_COND_V(p_argcount<1,Variant());
return call(p_name, p_arg1, p_arg2, p_arg3, p_arg4);
};
void Object::_call_deferred_bind(const StringName& p_name, const Variant& p_arg1, const Variant& p_arg2, const Variant& p_arg3, const Variant& p_arg4) {
call_deferred(p_name, p_arg1, p_arg2, p_arg3, p_arg4);
};
#endif
#ifdef DEBUG_ENABLED
static bool _test_call_error(const StringName& p_func,const Variant::CallError& error) {
switch(error.error) {
case Variant::CallError::CALL_OK:
return true;
case Variant::CallError::CALL_ERROR_INVALID_METHOD:
return false;
case Variant::CallError::CALL_ERROR_INVALID_ARGUMENT: {
ERR_EXPLAIN("Error Calling Function: "+String(p_func)+" - Invalid type for argument "+itos(error.argument)+", expected "+Variant::get_type_name(error.expected));
ERR_FAIL_V(true);
} break;
case Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS: {
ERR_EXPLAIN("Error Calling Function: "+String(p_func)+" - Too many arguments, expected "+itos(error.argument));
ERR_FAIL_V(true);
} break;
case Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS: {
ERR_EXPLAIN("Error Calling Function: "+String(p_func)+" - Too few arguments, expected "+itos(error.argument));
ERR_FAIL_V(true);
} break;
case Variant::CallError::CALL_ERROR_INSTANCE_IS_NULL: {} //?
}
return true;
}
#else
#define _test_call_error(m_str,m_err) ((m_err.error==Variant::CallError::CALL_ERROR_INVALID_METHOD)?false:true)
#endif
void Object::call_multilevel(const StringName& p_method,const Variant** p_args,int p_argcount) {
if (p_method==CoreStringNames::get_singleton()->_free) {
#ifdef DEBUG_ENABLED
if (cast_to<Reference>()) {
ERR_EXPLAIN("Can't 'free' a reference.");
ERR_FAIL();
return;
}
#endif
//must be here, must be before everything,
memdelete(this);
return;
}
//Variant ret;
Variant::CallError error;
if (script_instance) {
script_instance->call_multilevel(p_method,p_args,p_argcount);
//_test_call_error(p_method,error);
}
MethodBind *method=ObjectTypeDB::get_method(get_type_name(),p_method);
if (method) {
method->call(this,p_args,p_argcount,error);
_test_call_error(p_method,error);
}
}
void Object::call_multilevel_reversed(const StringName& p_method,const Variant** p_args,int p_argcount) {
MethodBind *method=ObjectTypeDB::get_method(get_type_name(),p_method);
Variant::CallError error;
if (method) {
method->call(this,p_args,p_argcount,error);
_test_call_error(p_method,error);
}
//Variant ret;
if (script_instance) {
script_instance->call_multilevel_reversed(p_method,p_args,p_argcount);
//_test_call_error(p_method,error);
}
}
bool Object::has_method(const StringName& p_method) const {
if (p_method==CoreStringNames::get_singleton()->_free) {
return true;
}
if (script_instance && script_instance->has_method(p_method)) {
return true;
}
MethodBind *method=ObjectTypeDB::get_method(get_type_name(),p_method);
if (method) {
return true;
}
return false;
}
Variant Object::getvar(const Variant& p_key, bool *r_valid) const {
if (r_valid)
*r_valid=false;
return Variant();
}
void Object::setvar(const Variant& p_key, const Variant& p_value,bool *r_valid) {
if (r_valid)
*r_valid=false;
}
Variant Object::callv(const StringName& p_method,const Array& p_args) {
if (p_args.size()==0) {
return call(p_method);
}
Vector<Variant> args;
args.resize(p_args.size());
Vector<const Variant*> argptrs;
argptrs.resize(p_args.size());
for(int i=0;i<p_args.size();i++) {
args[i]=p_args[i];
argptrs[i]=&args[i];
}
Variant::CallError ce;
return call(p_method,argptrs.ptr(),p_args.size(),ce);
}
Variant Object::call(const StringName& p_name, VARIANT_ARG_DECLARE) {
#if 0
if (p_name==CoreStringNames::get_singleton()->_free) {
#ifdef DEBUG_ENABLED
if (cast_to<Reference>()) {
ERR_EXPLAIN("Can't 'free' a reference.");
ERR_FAIL_V(Variant());
}
#endif
//must be here, must be before everything,
memdelete(this);
return Variant();
}
VARIANT_ARGPTRS;
int argc=0;
for(int i=0;i<VARIANT_ARG_MAX;i++) {
if (argptr[i]->get_type()==Variant::NIL)
break;
argc++;
}
Variant::CallError error;
Variant ret;
if (script_instance) {
ret = script_instance->call(p_name,argptr,argc,error);
if (_test_call_error(p_name,error))
return ret;
}
MethodBind *method=ObjectTypeDB::get_method(get_type_name(),p_name);
if (method) {
Variant ret = method->call(this,argptr,argc,error);
if (_test_call_error(p_name,error))
return ret;
return ret;
} else {
}
return Variant();
#else
VARIANT_ARGPTRS;
int argc=0;
for(int i=0;i<VARIANT_ARG_MAX;i++) {
if (argptr[i]->get_type()==Variant::NIL)
break;
argc++;
}
Variant::CallError error;
Variant ret = call(p_name,argptr,argc,error);
return ret;
#endif
}
void Object::call_multilevel(const StringName& p_name, VARIANT_ARG_DECLARE) {
#if 0
if (p_name==CoreStringNames::get_singleton()->_free) {
#ifdef DEBUG_ENABLED
if (cast_to<Reference>()) {
ERR_EXPLAIN("Can't 'free' a reference.");
ERR_FAIL();
return;
}
#endif
//must be here, must be before everything,
memdelete(this);
return;
}
VARIANT_ARGPTRS;
int argc=0;
for(int i=0;i<VARIANT_ARG_MAX;i++) {
if (argptr[i]->get_type()==Variant::NIL)
break;
argc++;
}
Variant::CallError error;
if (script_instance) {
script_instance->call(p_name,argptr,argc,error);
_test_call_error(p_name,error);
}
MethodBind *method=ObjectTypeDB::get_method(get_type_name(),p_name);
if (method) {
method->call(this,argptr,argc,error);
_test_call_error(p_name,error);
}
#else
VARIANT_ARGPTRS;
int argc=0;
for(int i=0;i<VARIANT_ARG_MAX;i++) {
if (argptr[i]->get_type()==Variant::NIL)
break;
argc++;
}
//Variant::CallError error;
call_multilevel(p_name,argptr,argc);
#endif
}
Variant Object::call(const StringName& p_method,const Variant** p_args,int p_argcount,Variant::CallError &r_error) {
if (p_method==CoreStringNames::get_singleton()->_free) {
//free must be here, before anything, always ready
#ifdef DEBUG_ENABLED
if (p_argcount!=0) {
r_error.argument=0;
r_error.error=Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS;
return Variant();
}
if (cast_to<Reference>()) {
r_error.argument=0;
r_error.error=Variant::CallError::CALL_ERROR_INVALID_METHOD;
ERR_EXPLAIN("Can't 'free' a reference.");
ERR_FAIL_V(Variant());
}
#endif
//must be here, must be before everything,
memdelete(this);
r_error.error=Variant::CallError::CALL_OK;
return Variant();
}
Variant ret;
if (script_instance) {
ret = script_instance->call(p_method,p_args,p_argcount,r_error);
//force jumptable
switch(r_error.error) {
case Variant::CallError::CALL_OK:
return ret;
case Variant::CallError::CALL_ERROR_INVALID_METHOD:
break;
case Variant::CallError::CALL_ERROR_INVALID_ARGUMENT:
case Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS:
case Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS:
return ret;
case Variant::CallError::CALL_ERROR_INSTANCE_IS_NULL: {}
}
}
MethodBind *method=ObjectTypeDB::get_method(get_type_name(),p_method);
if (method) {
ret=method->call(this,p_args,p_argcount,r_error);
} else {
r_error.error=Variant::CallError::CALL_ERROR_INVALID_METHOD;
}
return ret;
}
void Object::notification(int p_notification,bool p_reversed) {
_notificationv(p_notification,p_reversed);
if (script_instance) {
script_instance->notification(p_notification);
}
}
void Object::_changed_callback(Object *p_changed,const char *p_prop) {
}
void Object::add_change_receptor( Object *p_receptor ) {
change_receptors.insert(p_receptor);
}
void Object::remove_change_receptor( Object *p_receptor ) {
change_receptors.erase(p_receptor);
}
void Object::property_list_changed_notify() {
_change_notify();
}
void Object::cancel_delete() {
_predelete_ok=true;
}
void Object::set_script(const RefPtr& p_script) {
if (script==p_script)
return;
if (script_instance) {
memdelete(script_instance);
script_instance=NULL;
}
script=p_script;
Ref<Script> s(script);
if (!s.is_null() && s->can_instance() ) {
script_instance = s->instance_create(this);
}
_change_notify("script/script");
emit_signal(CoreStringNames::get_singleton()->script_changed);
}
void Object::set_script_instance(ScriptInstance *p_instance) {
if (script_instance==p_instance)
return;
if (script_instance)
memdelete(script_instance);
script_instance=p_instance;
script=p_instance->get_script().get_ref_ptr();
}
RefPtr Object::get_script() const {
return script;
}
bool Object::has_meta(const String& p_name) const {
return metadata.has(p_name);
}
void Object::set_meta(const String& p_name, const Variant& p_value ) {
if (p_value.get_type() == Variant::NIL) {
metadata.erase(p_name);
return;
};
metadata[p_name]=p_value;
}
Variant Object::get_meta(const String& p_name) const {
ERR_FAIL_COND_V(!metadata.has(p_name),Variant());
return metadata[p_name];
}
Array Object::_get_property_list_bind() const {
List<PropertyInfo> lpi;
get_property_list(&lpi);
return convert_property_list(&lpi);
}
DVector<String> Object::_get_meta_list_bind() const {
DVector<String> _metaret;
List<Variant> keys;
metadata.get_key_list(&keys);
for(List<Variant>::Element *E=keys.front();E;E=E->next()) {
_metaret.push_back(E->get());
}
return _metaret;
}
void Object::get_meta_list(List<String> *p_list) const {
List<Variant> keys;
metadata.get_key_list(&keys);
for(List<Variant>::Element *E=keys.front();E;E=E->next()) {
p_list->push_back(E->get());
}
}
void Object::add_user_signal(const MethodInfo& p_signal) {
ERR_FAIL_COND(p_signal.name=="");
ERR_FAIL_COND( ObjectTypeDB::has_signal(get_type_name(),p_signal.name ) );
ERR_FAIL_COND(signal_map.has(p_signal.name));
Signal s;
s.user=p_signal;
signal_map[p_signal.name]=s;
}
struct _ObjectSignalDisconnectData {
StringName signal;
Object *target;
StringName method;
};
#if 0
void Object::_emit_signal(const StringName& p_name,const Array& p_pargs){
Variant args[VARIANT_ARG_MAX];
int count = p_pargs.size();
for(int i=0;i<count;i++) {
args[i]=p_pargs[i];
}
emit_signal(p_name,VARIANT_ARGS_FROM_ARRAY(args));
}
#endif
Variant Object::_emit_signal(const Variant** p_args, int p_argcount, Variant::CallError& r_error) {
r_error.error=Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
ERR_FAIL_COND_V(p_argcount<1,Variant());
if (p_args[0]->get_type()!=Variant::STRING) {
r_error.error=Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
r_error.argument=0;
r_error.expected=Variant::STRING;
ERR_FAIL_COND_V(p_args[0]->get_type()!=Variant::STRING,Variant());
}
r_error.error=Variant::CallError::CALL_OK;
StringName signal = *p_args[0];
Variant v[VARIANT_ARG_MAX];
for(int i=0;i<MIN(5,p_argcount-1);i++) {
v[i]=*p_args[i+1];
}
emit_signal(signal,v[0],v[1],v[2],v[3],v[4]);
return Variant();
}
void Object::emit_signal(const StringName& p_name,VARIANT_ARG_DECLARE) {
if (_block_signals)
return; //no emit, signals blocked
Signal *s = signal_map.getptr(p_name);
if (!s) {
return;
}
List<_ObjectSignalDisconnectData> disconnect_data;
//copy on write will ensure that disconnecting the signal or even deleting the object will not affect the signal calling.
//this happens automatically and will not change the performance of calling.
//awesome, isn't it?
VMap<Signal::Target,Signal::Slot> slot_map = s->slot_map;
int ssize = slot_map.size();
for(int i=0;i<ssize;i++) {
const Connection &c = slot_map.getv(i).conn;
VARIANT_ARGPTRS
Object *target;
#ifdef DEBUG_ENABLED
target = ObjectDB::get_instance(slot_map.getk(i)._id);
ERR_CONTINUE(!target);
#else
target=c.target;
#endif
int bind_count=c.binds.size();
int bind=0;
for(int i=0;bind < bind_count && i<VARIANT_ARG_MAX;i++) {
if (argptr[i]->get_type()==Variant::NIL) {
argptr[i]=&c.binds[bind];
bind++;
}
}
if (c.flags&CONNECT_DEFERRED) {
MessageQueue::get_singleton()->push_call(target->get_instance_ID(),c.method,VARIANT_ARGPTRS_PASS);
} else {
target->call( c.method, VARIANT_ARGPTRS_PASS );
}
if (c.flags&CONNECT_ONESHOT) {
_ObjectSignalDisconnectData dd;
dd.signal=p_name;
dd.target=target;
dd.method=c.method;
disconnect_data.push_back(dd);
}
}
#if 0
//old (deprecated and dangerous code)
s->lock++;
for( Map<Signal::Target,Signal::Slot>::Element *E = s->slot_map.front();E;E=E->next() ) {
const Signal::Target& t = E->key();
const Signal::Slot& s = E->get();
const Connection &c = s.cE->get();
VARIANT_ARGPTRS
int bind_count=c.binds.size();
int bind=0;
for(int i=0;bind < bind_count && i<VARIANT_ARG_MAX;i++) {
if (argptr[i]->get_type()==Variant::NIL) {
argptr[i]=&c.binds[bind];
bind++;
}
}
if (c.flags&CONNECT_DEFERRED) {
MessageQueue::get_singleton()->push_call(t._id,t.method,VARIANT_ARGPTRS_PASS);
} else {
Object *obj = ObjectDB::get_instance(t._id);
ERR_CONTINUE(!obj); //yeah this should always be here
obj->call( t.method, VARIANT_ARGPTRS_PASS );
}
if (c.flags&CONNECT_ONESHOT) {
_ObjectSignalDisconnectData dd;
dd.signal=p_name;
dd.target=ObjectDB::get_instance(t._id);
dd.method=t.method;
disconnect_data.push_back(dd);
}
}
s->lock--;
#endif
while (!disconnect_data.empty()) {
const _ObjectSignalDisconnectData &dd = disconnect_data.front()->get();
disconnect(dd.signal,dd.target,dd.method);
disconnect_data.pop_front();
}
}
void Object::_add_user_signal(const String& p_name, const Array& p_args) {
// this version of add_user_signal is meant to be used from scripts or external apis
// without access to ADD_SIGNAL in bind_methods
// added events are per instance, as opposed to the other ones, which are global
MethodInfo mi;
mi.name=p_name;
for(int i=0;i<p_args.size();i++) {
Dictionary d=p_args[i];
PropertyInfo param;
if (d.has("name"))
param.name=d["name"];
if (d.has("type"))
param.type=(Variant::Type)(int)d["type"];
mi.arguments.push_back(param);
}
add_user_signal(mi);
}
#if 0
void Object::_emit_signal(const StringName& p_name,const Array& p_pargs){
Variant args[VARIANT_ARG_MAX];
int count = p_pargs.size();
for(int i=0;i<count;i++) {
args[i]=p_pargs[i];
}
emit_signal(p_name,VARIANT_ARGS_FROM_ARRAY(args));
}
#endif
Array Object::_get_signal_list() const{
return Array();
}
Array Object::_get_signal_connection_list(const String& p_signal) const{
return Array();
}
void Object::get_signal_list(List<MethodInfo> *p_signals ) const {
ObjectTypeDB::get_signal_list(get_type_name(),p_signals);
//find maybe usersignals?
const StringName *S=NULL;
while((S=signal_map.next(S))) {
if (signal_map[*S].user.name!="") {
//user signal
p_signals->push_back(signal_map[*S].user);
}
}
}
void Object::get_signal_connection_list(const StringName& p_signal,List<Connection> *p_connections) const {
const Signal *s=signal_map.getptr(p_signal);
if (!s)
return; //nothing
for(int i=0;i<s->slot_map.size();i++)
p_connections->push_back(s->slot_map.getv(i).conn);
}
void Object::connect(const StringName& p_signal, Object *p_to_object, const StringName& p_to_method,const Vector<Variant>& p_binds,uint32_t p_flags) {
ERR_FAIL_NULL(p_to_object);
Signal *s = signal_map.getptr(p_signal);
if (!s) {
bool signal_is_valid = ObjectTypeDB::has_signal(get_type_name(),p_signal);
if (!signal_is_valid) {
ERR_EXPLAIN("Attempt to connect to unexisting signal: "+p_signal);
ERR_FAIL_COND(!signal_is_valid);
}
signal_map[p_signal]=Signal();
s=&signal_map[p_signal];
}
Signal::Target target(p_to_object->get_instance_ID(),p_to_method);
if (s->slot_map.has(target)) {
ERR_EXPLAIN("Signal '"+p_signal+"'' already connected to given method '"+p_to_method+"' in that object.");
ERR_FAIL_COND(s->slot_map.has(target));
}
Signal::Slot slot;
Connection conn;
conn.source=this;
conn.target=p_to_object;
conn.method=p_to_method;
conn.signal=p_signal;
conn.flags=p_flags;
conn.binds=p_binds;
slot.conn=conn;
slot.cE=p_to_object->connections.push_back(conn);
s->slot_map[target]=slot;
}
bool Object::is_connected(const StringName& p_signal, Object *p_to_object, const StringName& p_to_method) const {
ERR_FAIL_NULL_V(p_to_object,false);
const Signal *s = signal_map.getptr(p_signal);
if (!s) {
bool signal_is_valid = ObjectTypeDB::has_signal(get_type_name(),p_signal);
if (signal_is_valid)
return false;
ERR_EXPLAIN("Unexisting signal: "+p_signal);
ERR_FAIL_COND_V(!s,false);
}
Signal::Target target(p_to_object->get_instance_ID(),p_to_method);
return s->slot_map.has(target);
//const Map<Signal::Target,Signal::Slot>::Element *E = s->slot_map.find(target);
//return (E!=NULL);
}
void Object::disconnect(const StringName& p_signal, Object *p_to_object, const StringName& p_to_method) {
ERR_FAIL_NULL(p_to_object);
Signal *s = signal_map.getptr(p_signal);
if (!s) {
ERR_EXPLAIN("Unexisting signal: "+p_signal);
ERR_FAIL_COND(!s);
}
if (s->lock>0) {
ERR_EXPLAIN("Attempt to disconnect signal '"+p_signal+"' while emitting (locks: "+itos(s->lock)+")");
ERR_FAIL_COND(s->lock>0);
}
Signal::Target target(p_to_object->get_instance_ID(),p_to_method);
if (!s->slot_map.has(target)) {
ERR_EXPLAIN("Disconnecting unexisting signal '"+p_signal+"', slot: "+itos(target._id)+":"+target.method);
ERR_FAIL();
}
int prev = p_to_object->connections.size();
p_to_object->connections.erase(s->slot_map[target].cE);
s->slot_map.erase(target);
if (s->slot_map.empty() && ObjectTypeDB::has_signal(get_type_name(),p_signal )) {
//not user signal, delete
signal_map.erase(p_signal);
}
}
void Object::_set_bind(const String& p_set,const Variant& p_value) {
set(p_set,p_value);
}
Variant Object::_get_bind(const String& p_name) const {
return get(p_name);
}
void Object::initialize_type() {
static bool initialized=false;
if (initialized)
return;
ObjectTypeDB::_add_type<Object>();
_bind_methods();
initialized=true;
}
StringName Object::XL_MESSAGE(const StringName& p_message) const {
if (!_can_translate || !TranslationServer::get_singleton())
return p_message;
return TranslationServer::get_singleton()->translate(p_message);
}
StringName Object::tr(const StringName& p_message) const {
return XL_MESSAGE(p_message);
}
void Object::_bind_methods() {
ObjectTypeDB::bind_method(_MD("get_type"),&Object::get_type);
ObjectTypeDB::bind_method(_MD("is_type","type"),&Object::is_type);
ObjectTypeDB::bind_method(_MD("set","property","value"),&Object::_set_bind);
ObjectTypeDB::bind_method(_MD("get","property"),&Object::_get_bind);
ObjectTypeDB::bind_method(_MD("get_property_list"),&Object::_get_property_list_bind);
ObjectTypeDB::bind_method(_MD("notification","what"),&Object::notification,DEFVAL(false));
ObjectTypeDB::bind_method(_MD("get_instance_ID"),&Object::get_instance_ID);
ObjectTypeDB::bind_method(_MD("set_script","script:Script"),&Object::set_script);
ObjectTypeDB::bind_method(_MD("get_script:Script"),&Object::get_script);
ObjectTypeDB::bind_method(_MD("set_meta","name","value"),&Object::set_meta);
ObjectTypeDB::bind_method(_MD("get_meta","name","value"),&Object::get_meta);
ObjectTypeDB::bind_method(_MD("has_meta","name"),&Object::has_meta);
ObjectTypeDB::bind_method(_MD("get_meta_list"),&Object::_get_meta_list_bind);
//todo reimplement this per language so all 5 arguments can be called
// ObjectTypeDB::bind_method(_MD("call","method","arg1","arg2","arg3","arg4"),&Object::_call_bind,DEFVAL(Variant()),DEFVAL(Variant()),DEFVAL(Variant()),DEFVAL(Variant()));
// ObjectTypeDB::bind_method(_MD("call_deferred","method","arg1","arg2","arg3","arg4"),&Object::_call_deferred_bind,DEFVAL(Variant()),DEFVAL(Variant()),DEFVAL(Variant()),DEFVAL(Variant()));
ObjectTypeDB::bind_method(_MD("add_user_signal","signal","arguments"),&Object::_add_user_signal,DEFVAL(Array()));
// ObjectTypeDB::bind_method(_MD("emit_signal","signal","arguments"),&Object::_emit_signal,DEFVAL(Array()));
{
MethodInfo mi;
mi.name="emit_signal";
mi.arguments.push_back( PropertyInfo( Variant::STRING, "signal"));
Vector<Variant> defargs;
for(int i=0;i<VARIANT_ARG_MAX;i++) {
mi.arguments.push_back( PropertyInfo( Variant::NIL, "arg"+itos(i)));
defargs.push_back(Variant());
}
ObjectTypeDB::bind_native_method(METHOD_FLAGS_DEFAULT,"emit_signal",&Object::_emit_signal,mi,defargs);
}
{
MethodInfo mi;
mi.name="call";
mi.arguments.push_back( PropertyInfo( Variant::STRING, "method"));
Vector<Variant> defargs;
for(int i=0;i<10;i++) {
mi.arguments.push_back( PropertyInfo( Variant::NIL, "arg"+itos(i)));
defargs.push_back(Variant());
}
ObjectTypeDB::bind_native_method(METHOD_FLAGS_DEFAULT,"call",&Object::_call_bind,mi,defargs);
}
{
MethodInfo mi;
mi.name="call_deferred";
mi.arguments.push_back( PropertyInfo( Variant::STRING, "method"));
Vector<Variant> defargs;
for(int i=0;i<VARIANT_ARG_MAX;i++) {
mi.arguments.push_back( PropertyInfo( Variant::NIL, "arg"+itos(i)));
defargs.push_back(Variant());
}
ObjectTypeDB::bind_native_method(METHOD_FLAGS_DEFAULT,"call_deferred",&Object::_call_deferred_bind,mi,defargs);
}
ObjectTypeDB::bind_method(_MD("callv:var","method","arg_array"),&Object::callv);
ObjectTypeDB::bind_method(_MD("has_method"),&Object::has_method);
ObjectTypeDB::bind_method(_MD("get_signal_list"),&Object::_get_signal_list);
ObjectTypeDB::bind_method(_MD("connect","signal","target:Object","method","binds","flags"),&Object::connect,DEFVAL(Array()),DEFVAL(0));
ObjectTypeDB::bind_method(_MD("disconnect","signal","target:Object","method"),&Object::disconnect);
ObjectTypeDB::bind_method(_MD("is_connected","signal","target:Object","method"),&Object::is_connected);
ObjectTypeDB::bind_method(_MD("set_block_signals","enable"),&Object::set_block_signals);
ObjectTypeDB::bind_method(_MD("is_blocking_signals"),&Object::is_blocking_signals);
ObjectTypeDB::bind_method(_MD("set_message_translation","enable"),&Object::set_message_translation);
ObjectTypeDB::bind_method(_MD("can_translate_messages"),&Object::set_message_translation);
ObjectTypeDB::bind_method(_MD("property_list_changed_notify"),&Object::property_list_changed_notify);
ObjectTypeDB::bind_method(_MD("XL_MESSAGE","message"),&Object::XL_MESSAGE);
ObjectTypeDB::bind_method(_MD("tr","message"),&Object::tr);
ADD_SIGNAL( MethodInfo("script_changed"));
BIND_VMETHOD( MethodInfo("_notification",PropertyInfo(Variant::INT,"what")) );
BIND_VMETHOD( MethodInfo("_set",PropertyInfo(Variant::STRING,"property"),PropertyInfo(Variant::NIL,"value")) );
#ifdef TOOLS_ENABLED
MethodInfo miget("_get",PropertyInfo(Variant::STRING,"property") );
miget.return_val.name="var";
BIND_VMETHOD( miget );
MethodInfo plget("_get_property_list");
plget.return_val.type=Variant::ARRAY;
BIND_VMETHOD( plget );
#endif
BIND_CONSTANT( NOTIFICATION_POSTINITIALIZE );
BIND_CONSTANT( NOTIFICATION_PREDELETE );
BIND_CONSTANT( CONNECT_DEFERRED );
BIND_CONSTANT( CONNECT_PERSIST );
BIND_CONSTANT( CONNECT_ONESHOT );
}
void Object::call_deferred(const StringName& p_method,VARIANT_ARG_DECLARE) {
MessageQueue::get_singleton()->push_call(this,p_method,VARIANT_ARG_PASS);
}
void Object::set_block_signals(bool p_block) {
_block_signals=p_block;
}
bool Object::is_blocking_signals() const{
return _block_signals;
}
void Object::get_translatable_strings(List<String> *p_strings) const {
List<PropertyInfo> plist;
get_property_list(&plist);
for(List<PropertyInfo>::Element *E=plist.front();E;E=E->next()) {
if (!(E->get().usage&PROPERTY_USAGE_INTERNATIONALIZED))
continue;
String text = get( E->get().name );
if (text=="")
continue;
p_strings->push_back(text);
}
}
#ifdef TOOLS_ENABLED
void Object::set_edited(bool p_edited) {
_edited=p_edited;
}
bool Object::is_edited() const {
return _edited;
}
#endif
Object::Object() {
_block_signals=false;
_predelete_ok=0;
_instance_ID=0;
_instance_ID = ObjectDB::add_instance(this);
_can_translate=true;
script_instance=NULL;
#ifdef TOOLS_ENABLED
_edited=false;
#endif
}
Object::~Object() {
if (script_instance)
memdelete(script_instance);
script_instance=NULL;
List<Connection> sconnections;
const StringName *S=NULL;
while((S=signal_map.next(S))) {
Signal *s=&signal_map[*S];
ERR_EXPLAIN("Attempt to delete an object in the middle of a signal emission from it");
ERR_CONTINUE(s->lock>0);
for(int i=0;i<s->slot_map.size();i++) {
sconnections.push_back(s->slot_map.getv(i).conn);
}
}
for(List<Connection>::Element *E=sconnections.front();E;E=E->next()) {
Connection &c = E->get();
ERR_CONTINUE(c.source!=this); //bug?
this->disconnect(c.signal,c.target,c.method);
}
while(connections.size()) {
Connection c = connections.front()->get();
c.source->disconnect(c.signal,c.target,c.method);
}
ObjectDB::remove_instance(this);
_instance_ID=0;
_predelete_ok=2;
}
bool predelete_handler(Object *p_object) {
return p_object->_predelete();
}
void postinitialize_handler(Object *p_object) {
p_object->_postinitialize();
}
HashMap<uint32_t,Object*> ObjectDB::instances;
uint32_t ObjectDB::instance_counter=1;
HashMap<Object*,ObjectID,ObjectDB::ObjectPtrHash> ObjectDB::instance_checks;
uint32_t ObjectDB::add_instance(Object *p_object) {
GLOBAL_LOCK_FUNCTION;
ERR_FAIL_COND_V( p_object->get_instance_ID()!=0, 0 );
instances[++instance_counter]=p_object;
#ifdef DEBUG_ENABLED
instance_checks[p_object]=instance_counter;
#endif
return instance_counter;
}
void ObjectDB::remove_instance(Object *p_object) {
GLOBAL_LOCK_FUNCTION;
instances.erase( p_object->get_instance_ID() );
#ifdef DEBUG_ENABLED
instance_checks.erase(p_object);
#endif
}
Object *ObjectDB::get_instance(uint32_t p_instance_ID) {
GLOBAL_LOCK_FUNCTION;
Object**obj=instances.getptr(p_instance_ID);
if (!obj)
return NULL;
return *obj;
}
void ObjectDB::debug_objects(DebugFunc p_func) {
GLOBAL_LOCK_FUNCTION;
const uint32_t *K=NULL;
while((K=instances.next(K))) {
p_func(instances[*K]);
}
}
int ObjectDB::get_object_count() {
GLOBAL_LOCK_FUNCTION;
return instances.size();
}
void ObjectDB::cleanup() {
GLOBAL_LOCK_FUNCTION;
if (instances.size()) {
WARN_PRINT("ObjectDB Instances still exist!");
}
instances.clear();
instance_checks.clear();
}
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