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annotate nodejs/coord.cc @ 560:ce7a35abcb0d Android_Skia

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Function to instantiate coord for Javascript
author Thinker K.F. Li <thinker@branda.to>
date Mon, 07 Jun 2010 11:47:34 +0800
parents 0ca8437a91fa
children 1b6402f07cd4
rev   line source
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1 #include <stdio.h>
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2 #include <v8.h>
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3
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4 extern "C" {
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5 #include "mb.h"
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6 #include "mb_X_supp.h"
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7 #include "mb_tools.h"
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8 #include "X_supp_njs.h"
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9 }
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10
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11 #include "mbfly_njs.h"
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12
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13 #ifndef ASSERT
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14 #define ASSERT(x)
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15 #endif
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16
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17 using namespace v8;
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18
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19 static Handle<Value>
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20 xnjsmb_coord_get_index(uint32_t index, const AccessorInfo &info) {
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21 HandleScope scope;
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22 Handle<Object> self;
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23 coord_t *coord;
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24 co_aix v;
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25
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26 if(index < 0 || index >= 6)
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27 THROW("Invalid index");
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28
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29 self = info.This();
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30 coord = (coord_t *)UNWRAP(self);
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31 v = coord_get_matrix(coord)[index];
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32
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33 return Number::New(v);
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34 }
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35
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36 static Handle<Value>
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37 xnjsmb_coord_set_index(uint32_t index, Local<Value> value,
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38 const AccessorInfo &info) {
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39
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40 HandleScope scope;
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41 Handle<Object> self;
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42 Handle<Object> js_rt;
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43 redraw_man_t *rdman;
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44 coord_t *coord;
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45 co_aix v;
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46
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47 if(index < 0 || index >= 6)
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48 THROW("Invalid Index");
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49 if(!value->IsNumber())
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50 THROW("Invalid value");
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51
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52 self = info.This();
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53 coord = (coord_t *)UNWRAP(self);
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54 v = value->NumberValue();
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55 coord_get_matrix(coord)[index] = v;
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56
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57 js_rt = GET(self, "mbrt")->ToObject();
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58 rdman = xnjsmb_rt_rdman(js_rt);
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59 rdman_coord_changed(rdman, coord);
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60
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61 return value;
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62 }
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63
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64 static Persistent<ObjectTemplate> coord_obj_temp;
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65
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66 static void
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67 xnjsmb_init_temp(void) {
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68 coord_obj_temp = Persistent<ObjectTemplate>(ObjectTemplate::New());
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69 coord_obj_temp->SetIndexedPropertyHandler(xnjsmb_coord_get_index,
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70 xnjsmb_coord_set_index);
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71 coord_obj_temp->SetInternalFieldCount(1);
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72 }
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73
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74 /*! \brief Create a coord object associated with the rdman of the runtime.
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75 *
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76 * Two internal fields, coord and rdman.
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77 */
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78 Handle<Value>
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79 xnjsmb_coord_new(const Arguments &args) {
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80 HandleScope scope;
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81 Handle<Object> js_rt;
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82 Handle<Object> coord_obj, parent_obj;
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83 njs_runtime_t *rt;
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84 redraw_man_t *rdman;
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85 coord_t *coord, *parent = NULL;
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86 int argc;
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87 static int init_temp = 0;
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88
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89 if(!init_temp) {
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90 xnjsmb_init_temp();
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91 init_temp = 1;
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92 }
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93
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94 argc = args.Length();
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95 if(argc > 1)
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96 THROW("Too many arguments (> 1)");
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97
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98 js_rt = args.This();
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99 rt = (njs_runtime_t *)UNWRAP(js_rt);
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100 rdman = X_njs_MB_rdman(rt);
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101
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102 if(argc == 1) {
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103 parent_obj = args[0]->ToObject();
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104 parent = (coord_t *)UNWRAP(parent_obj);
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105 }
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106
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107 /*
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108 * Set Javascript object
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109 */
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110 coord = rdman_coord_new(rdman, parent);
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111 ASSERT(coord != NULL);
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112
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113 coord_obj = coord_obj_temp->NewInstance();
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114 ASSERT(coord_obj != NULL);
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115 WRAP(coord_obj, coord);
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116
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117 if(parent != NULL)
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118 SET(coord_obj, "parent", parent_obj);
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119 SET(coord_obj, "mbrt", js_rt);
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120
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121 return coord_obj;
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122 }