Mercurial > MadButterfly
view nodejs/image_ldr.cc @ 653:34710e86b4a2
Remove cairo-directfb.h but it will be needed at graphic layer initialization of SMP8654.
author | Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com> |
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date | Sat, 31 Jul 2010 16:36:53 +0800 |
parents | a65720721c60 |
children | b346e4699e55 |
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/*! \file * This file implements Javascript binding for img_ldr_t of MadButterfly. */ #include <v8.h> extern "C" { #include "mb.h" } #include "mbfly_njs.h" using namespace v8; #ifndef ASSERT #define ASSERT(x) #endif /*! \defgroup img_ldr_js Javascript binding for image loader. * * @{ */ static Persistent<ObjectTemplate> img_data_temp; /*! \brief load() method of img_ldr Javascript objects. */ static Handle<Value> xnjsmb_img_ldr_load(const Arguments &args) { HandleScope scope; int argc = args.Length(); Handle<Object> self = args.This(); char *img_id; mb_img_ldr_t *img_ldr; mb_img_data_t *img_data; Handle<Object> img_data_obj; if(argc != 1) THROW("Invalid number of arguments (!= 1)"); if(!args[0]->IsString()) THROW("Invalid argument type"); String::Utf8Value img_id_utf8(args[0]->ToString()); img_id = *img_id_utf8; img_ldr = (mb_img_ldr_t *)UNWRAP(self); img_data_obj = img_data_temp->NewInstance(); ASSERT(img_data_obj); img_data = MB_IMG_LDR_LOAD(img_ldr, img_id); if(img_data == NULL) THROW("Can not load an image"); WRAP(img_data_obj, img_data); scope.Close(img_data_obj); return img_data_obj; } /*! \brief Constructor function of img_ldr Javascript objects. */ static Handle<Value> xnjsmb_img_ldr(const Arguments &args) { HandleScope scope; int argc = args.Length(); Handle<Object> self = args.This(); char *path; mb_img_ldr_t *img_ldr; if(argc != 1) THROW("Invalid number of arguments (!= 1)"); if(!args[0]->IsString()) THROW("Invalid argument type"); String::Utf8Value pathutf8(args[0]->ToString()); path = *pathutf8; img_ldr = simple_mb_img_ldr_new(path); if(img_ldr == NULL) THROW("Can not create an image loader"); WRAP(self, img_ldr); return Null(); } static Persistent<FunctionTemplate> xnjsmb_img_ldr_temp; static Handle<Value> xnjsmb_img_ldr_new(const Arguments &args) { HandleScope scope; int argc = args.Length(); Handle<Value> il_args[1]; Handle<Object> img_ldr; Handle<Function> func; if(argc != 1) THROW("Invalid number of arguments (!= 1)"); if(!args[0]->IsString()) THROW("Invalid argument type"); il_args[0] = args[0]; func = xnjsmb_img_ldr_temp->GetFunction(); img_ldr = func->NewInstance(1, il_args); scope.Close(img_ldr); return img_ldr; } /* @} */ /*! \brief Initialize image loader. * * This function is called by init() in mbfly_njs.cc when the module * being loaded. */ void xnjsmb_img_ldr_init_mb_rt_temp(Handle<Object> rt_temp) { HandleScope scope; Handle<FunctionTemplate> img_ldr_temp; Handle<FunctionTemplate> img_ldr_new_temp; Handle<ObjectTemplate> ldr_inst_temp; Handle<ObjectTemplate> ldr_proto_temp; Handle<FunctionTemplate> img_ldr_load_temp; Handle<ObjectTemplate> _img_data_temp; /* Setup object template for img_data_t object for Javascript */ _img_data_temp = ObjectTemplate::New(); _img_data_temp->SetInternalFieldCount(1); img_data_temp = Persistent<ObjectTemplate>::New(_img_data_temp); /* Setup img_ldr class */ img_ldr_temp = FunctionTemplate::New(xnjsmb_img_ldr); img_ldr_temp->SetClassName(String::New("img_ldr")); ldr_inst_temp = img_ldr_temp->InstanceTemplate(); ldr_inst_temp->SetInternalFieldCount(1); /* Set method load() for img_ldr */ ldr_proto_temp = img_ldr_temp->PrototypeTemplate(); img_ldr_load_temp = FunctionTemplate::New(xnjsmb_img_ldr_load); SET(ldr_proto_temp, "load", img_ldr_load_temp); xnjsmb_img_ldr_temp = Persistent<FunctionTemplate>::New(img_ldr_temp); /* Initialize img_ldr_new function */ img_ldr_new_temp = FunctionTemplate::New(xnjsmb_img_ldr_new); SET(rt_temp, "img_ldr_new", img_ldr_new_temp->GetFunction()); }