20,741
edits
Nasal/CppBind: Difference between revisions
Jump to navigation
Jump to search
m
no edit summary
No edit summary |
mNo edit summary |
||
| Line 2: | Line 2: | ||
Open $FG_SRC/Scripting/CMakeLists.txt and add these entries to the SOURCES/HEADER section respectively: | Open $FG_SRC/Scripting/CMakeLists.txt and add these entries to the SOURCES/HEADER section respectively: | ||
* NasalTest.cxx (SOURCES) | * NasalTest.cxx (SOURCES) | ||
* NasalTest.hxx | * NasalTest.hxx (HEADERS) | ||
Next, create the NasalTest.cxx source file: | Next, create the NasalTest.cxx source file: | ||
| Line 13: | Line 13: | ||
#include <simgear/nasal/cppbind/Ghost.hxx> | #include <simgear/nasal/cppbind/Ghost.hxx> | ||
# the struct we want to expose to Nasal | # the struct we want to expose to Nasal (could also be a class obviously) | ||
struct Test { | struct Test { | ||
int x,y,z; | |||
}; | }; | ||
// cppbind manages all objects as shared pointers, use boost::shared_ptr or SGReferenced objects | |||
typedef boost::shared_ptr<Test> Test_ptr; | typedef boost::shared_ptr<Test> Test_ptr; | ||
typedef nasal::Ghost< Test_ptr > NasalTest; | typedef nasal::Ghost< Test_ptr > NasalTest; | ||
| Line 26: | Line 27: | ||
initNasalTest(_globals, _context); | initNasalTest(_globals, _context); | ||
*/ | */ | ||
// This is a helper, used by the to_helper() function | |||
// which turns the pointers into a Nasal data structure | |||
// so that you can return C++ classes to Nasal | |||
naRef to_nasal_helper(naContext c, const Test& t) | |||
{ | |||
nasal::Hash hash(c); | |||
hash.set("x", t.x ); | |||
hash.set("y", t.y ); | |||
hash.set("z", t.z ); | |||
return hash.get_naRef(); | |||
} | |||
naRef initNasalTest(naRef globals, naContext c) | naRef initNasalTest(naRef globals, naContext c) | ||