Mercurial > MadButterfly
view nodejs/shapes.cc @ 584:543a2a8523fb openvg
Make surce current VG context
author | Thinker K.F. Li <thinker@branda.to> |
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date | Wed, 30 Jun 2010 09:44:17 +0800 |
parents | 5a68e2bcea17 |
children | f60d8fa1c55b |
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#include <v8.h> #include "mbfly_njs.h" extern "C" { #include <mb.h> } #ifndef ASSERT #define ASSERT(x) #endif using namespace v8; /*! \defgroup shape_temp Templates for shape and derivations. * * @{ */ static Persistent<FunctionTemplate> xnjsmb_shape_temp; static Handle<Value> xnjsmb_shape_show(const Arguments &args) { shape_t *sh; Handle<Object> self; self = args.This(); sh = (shape_t *)UNWRAP(self); sh_show(sh); return Null(); } static Handle<Value> xnjsmb_shape_hide(const Arguments &args) { shape_t *sh; Handle<Object> self; self = args.This(); sh = (shape_t *)UNWRAP(self); sh_hide(sh); return Null(); } /*! \brief Get stroke width of a shape. */ static Handle<Value> xnjsmb_shape_stroke_width_getter(Local<String> property, const AccessorInfo &info) { Handle<Object> self = info.This(); shape_t *sh; float w; Handle<Value> w_val; sh = (shape_t *)UNWRAP(self); w = sh_get_stroke_width(sh); w_val = Number::New(w); return w_val; } /*! \brief Set stroke width of a shape. */ static void xnjsmb_shape_stroke_width_setter(Local<String> property, Local<Value> value, const AccessorInfo &info) { Handle<Object> self = info.This(); Handle<Object> rt; shape_t *sh; redraw_man_t *rdman; float w; Handle<Number> w_num; sh = (shape_t *)UNWRAP(self); w_num = value->ToNumber(); w = w_num->Value(); sh_set_stroke_width(sh, w); /* * Mark changed. */ rt = GET(self, "mbrt")->ToObject(); ASSERT(rt != NULL); rdman = xnjsmb_rt_rdman(rt); if(sh_get_coord(sh)) rdman_shape_changed(rdman, sh); } static void xnjsmb_init_shape_temp(void) { Handle<FunctionTemplate> temp; Handle<ObjectTemplate> proto_temp; Handle<FunctionTemplate> method_temp; temp = FunctionTemplate::New(); temp->SetClassName(String::New("shape")); xnjsmb_shape_temp = Persistent<FunctionTemplate>::New(temp); proto_temp = temp->PrototypeTemplate(); method_temp = FunctionTemplate::New(xnjsmb_shape_show); SET(proto_temp, "show", method_temp); method_temp = FunctionTemplate::New(xnjsmb_shape_hide); SET(proto_temp, "hide", method_temp); proto_temp->SetAccessor(String::New("stroke_width"), xnjsmb_shape_stroke_width_getter, xnjsmb_shape_stroke_width_setter); } /* @} */ /*! \defgroup path_temp Templates for path objects. * * @{ */ static Persistent<FunctionTemplate> xnjsmb_path_temp; /*! \brief Callback of constructor of path objects for Javascript. */ static Handle<Value> xnjsmb_shape_path(const Arguments &args) { shape_t *sh; redraw_man_t *rdman; Handle<Object> self = args.This(); // path object Handle<Object> rt; char *dstr; int argc; argc = args.Length(); if(argc != 2) THROW("Invalid number of arugments (!= 1)"); if(!args[0]->IsString()) THROW("Invalid argument type (should be a string)"); if(!args[1]->IsObject()) THROW("Invalid argument type (should be an object)"); String::Utf8Value dutf8(args[0]->ToString()); dstr = *dutf8; rt = args[1]->ToObject(); rdman = xnjsmb_rt_rdman(rt); sh = rdman_shape_path_new(rdman, dstr); WRAP(self, sh); SET(self, "mbrt", rt); return Null(); } /*! \brief Initial function template for constructor of path objects. */ static void xnjsmb_init_path_temp(void) { Handle<FunctionTemplate> temp; Handle<ObjectTemplate> inst_temp; temp = FunctionTemplate::New(xnjsmb_shape_path); temp->Inherit(xnjsmb_shape_temp); temp->SetClassName(String::New("path")); inst_temp = temp->InstanceTemplate(); inst_temp->SetInternalFieldCount(1); xnjsmb_path_temp = Persistent<FunctionTemplate>::New(temp); } /*! \brief Callback function of mb_rt.path_new(). */ static Handle<Value> xnjsmb_shape_path_new(const Arguments &args) { HandleScope scope; Handle<Object> self = args.This(); // runtime object Handle<Object> path_obj; Handle<Value> path_args[2]; int argc; argc = args.Length(); if(argc != 1) THROW("Invalid number of arugments (!= 1)"); if(!args[0]->IsString()) THROW("Invalid argument type (shoud be a string)"); path_args[0] = args[0]; path_args[1] = self; path_obj = xnjsmb_path_temp->GetFunction()->NewInstance(2, path_args); scope.Close(path_obj); return path_obj; } /* @} */ /*! \defgroup stext_path Template for stext objects. * * @{ */ /*! \brief Constructor for stext objects. * * 4 arguments * \param rt is a runtime object. * \param data is a text to be showed. * \param x is postion in x-axis. * \param y is position in y-axis. */ static Handle<Value> xnjsmb_shape_stext(const Arguments &args) { int argc = args.Length(); Handle<Object> self = args.This(); Handle<Object> rt; float x, y; char *data; redraw_man_t *rdman; shape_t *stext; if(argc != 4) THROW("Invalid number of arguments (!= 4)"); if(!args[0]->IsObject() || !args[1]->IsString() || !args[2]->IsNumber() || !args[3]->IsNumber()) THROW("Invalid argument type"); rt = args[0]->ToObject(); String::Utf8Value data_utf8(args[1]); data = *data_utf8; x = args[2]->ToNumber()->Value(); y = args[3]->ToNumber()->Value(); rdman = xnjsmb_rt_rdman(rt); ASSERT(rdman != NULL); stext = rdman_shape_stext_new(rdman, data, x, y); WRAP(self, stext); SET(self, "mbrt", rt); return Null(); } static Persistent<FunctionTemplate> xnjsmb_shape_stext_temp; /*! \brief Create a stext and return it. */ static Handle<Value> xnjsmb_shape_stext_new(const Arguments &args) { HandleScope scope; int argc = args.Length(); Handle<Object> self = args.This(); Handle<Value> stext_args[4]; Handle<Object> stext_obj; Handle<Function> func; if(argc != 3) THROW("Invalid number of arguments (!= 3)"); stext_args[0] = self; stext_args[1] = args[0]; stext_args[2] = args[1]; stext_args[3] = args[2]; func = xnjsmb_shape_stext_temp->GetFunction(); stext_obj = func->NewInstance(4, stext_args); ASSERT(stext_obj != NULL); return stext_obj; } /*! \brief Setup style blocks for a stext. * * It defines font style and size for blocks of text message. * * \param blks is a list (n_char, face, font size) tuples. */ static Handle<Value> xnjsmb_shape_stext_set_style(const Arguments &args) { HandleScope scope; int argc = args.Length(); Handle<Object> self = args.This(); shape_t *sh; Array *blksobj; Array *blkobj; mb_style_blk_t *blks; int nblks; int i; int r; if(argc != 1) THROW("Invalid number of arguments (!= 1)"); if(!args[0]->IsArray()) THROW("Invalid type of the argument"); blksobj = Array::Cast(*args[0]); nblks = blksobj->Length(); blks = new mb_style_blk_t[nblks]; for(i = 0; i < nblks; i++) { blkobj = Array::Cast(*blksobj->Get(i)); blks[i].n_chars = blkobj->Get(0)->ToInt32()->Value(); blks[i].face = (mb_font_face_t *)UNWRAP(blkobj->Get(1)->ToObject()); blks[i].font_sz = blkobj->Get(2)->ToNumber()->Value(); } sh = (shape_t *)UNWRAP(self); r = sh_stext_set_style(sh, blks, nblks); if(r != 0) THROW("Unknown error"); delete blks; return Null(); } /*! \brief Initialize function template for stext objects. */ void xnjsmb_init_stext_temp(void) { Handle<FunctionTemplate> func_temp; Handle<FunctionTemplate> meth_temp; Handle<ObjectTemplate> inst_temp; Handle<ObjectTemplate> proto_temp; func_temp = FunctionTemplate::New(xnjsmb_shape_stext); func_temp->Inherit(xnjsmb_shape_temp); func_temp->SetClassName(String::New("stext")); inst_temp = func_temp->InstanceTemplate(); inst_temp->SetInternalFieldCount(1); proto_temp = func_temp->PrototypeTemplate(); meth_temp = FunctionTemplate::New(xnjsmb_shape_stext_set_style); SET(proto_temp, "set_style", meth_temp); xnjsmb_shape_stext_temp = Persistent<FunctionTemplate>::New(func_temp); } /* @} */ /*! \brief Set properties of template of mb_rt. */ void xnjsmb_shapes_init_mb_rt_temp(Handle<FunctionTemplate> rt_temp) { HandleScope scope; Handle<FunctionTemplate> path_new_temp, stext_new_temp; Handle<ObjectTemplate> rt_proto_temp; static int temp_init_flag = 0; if(temp_init_flag == 0) { xnjsmb_init_shape_temp(); xnjsmb_init_path_temp(); xnjsmb_init_stext_temp(); temp_init_flag = 1; } rt_proto_temp = rt_temp->PrototypeTemplate(); path_new_temp = FunctionTemplate::New(xnjsmb_shape_path_new); SET(rt_proto_temp, "path_new", path_new_temp); stext_new_temp = FunctionTemplate::New(xnjsmb_shape_stext_new); SET(rt_proto_temp, "stext_new", stext_new_temp); }