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annotate nodejs/paints.cc @ 569:f87a368e847a Android_Skia

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Functions of stroke and fill a shape
author Thinker K.F. Li <thinker@branda.to>
date Wed, 09 Jun 2010 14:44:20 +0800
parents d796e6b8b97e
children 49e79253b6d3
rev   line source
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1 #include <v8.h>
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2
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3 extern "C" {
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4 #include "mb.h"
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5 }
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6
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7 #include "mbfly_njs.h"
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8
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9 using namespace v8;
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10
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11 #ifndef ASSERT
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12 #define ASSERT(x)
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13 #endif
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16 /*! \brief Fill a shape with the paint.
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17 */
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18 static Handle<Value>
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19 xnjsmb_paint_fill(const Arguments &args) {
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20 int argc = args.Length();
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21 Handle<Object> self = args.This();
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22 Handle<Object> sh_obj;
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23 Handle<Object> rt;
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24 Handle<Value> rt_val;
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25 paint_t *paint;
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26 shape_t *sh;
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27 redraw_man_t *rdman;
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28
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29 if(argc != 1)
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30 THROW("Invalid number of arguments (!= 1)");
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31 if(!args[0]->IsObject())
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32 THROW("Invalid argument type (shape)");
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33
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34 paint = (paint_t *)UNWRAP(self);
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35
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36 sh_obj = args[0]->ToObject();
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37 sh = (shape_t *)UNWRAP(sh_obj);
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38
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39 rt_val = GET(self, "mbrt");
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40 rt = rt_val->ToObject();
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41 rdman = xnjsmb_rt_rdman(rt);
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42
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43 rdman_paint_fill(rdman, paint, sh);
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44
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45 return Null();
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46 }
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47
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48 /*! \brief Stroke a shape with the paint.
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49 */
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50 static Handle<Value>
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51 xnjsmb_paint_stroke(const Arguments &args) {
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52 int argc = args.Length();
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53 Handle<Object> self = args.This();
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54 Handle<Object> sh_obj;
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55 Handle<Object> rt;
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56 Handle<Value> rt_val, sh_val;
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57 paint_t *paint;
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58 shape_t *sh;
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59 redraw_man_t *rdman;
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60
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61 if(argc != 1)
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62 THROW("Invalid number of arguments (!= 1)");
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63 if(!args[0]->IsObject())
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64 THROW("Invalid argument type (shape)");
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65
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66 paint = (paint_t *)UNWRAP(self);
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67
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68 sh_val = args[0];
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69 sh_obj = sh_val->ToObject();
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70 sh = (shape_t *)UNWRAP(sh_obj);
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71
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72 rt_val = GET(self, "mbrt");
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73 rt = rt_val->ToObject();
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74 rdman = xnjsmb_rt_rdman(rt);
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75
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76 rdman_paint_stroke(rdman, paint, sh);
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77
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78 return Null();
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79 }
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80
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81 /*! \brief Constructor of color paint_color_t object for Javascript.
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82 */
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83 static Handle<Value>
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84 xnjsmb_paint_color(const Arguments &args) {
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85 int argc = args.Length();
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86 Handle<Object> self = args.This();
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87 Handle<Object> rt;
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88 redraw_man_t *rdman;
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89 paint_t *paint;
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90 float r, g, b, a;
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91
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92 if(argc != 5)
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93 THROW("Invalid number of arguments (!= 5)");
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94 if(!args[0]->IsObject() || !args[1]->IsNumber() ||
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95 !args[2]->IsNumber() || !args[3]->IsNumber() ||
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96 !args[4]->IsNumber())
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97 THROW("Invalid argument type");
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98
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99 rt = args[0]->ToObject();
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100 r = args[1]->ToNumber()->Value();
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101 g = args[2]->ToNumber()->Value();
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102 b = args[3]->ToNumber()->Value();
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103 a = args[4]->ToNumber()->Value();
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104
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105 rdman = xnjsmb_rt_rdman(rt);
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106 paint = rdman_paint_color_new(rdman, r, g, b, a);
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107 ASSERT(sh != NULL);
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108
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109 WRAP(self, paint);
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110 SET(self, "mbrt", rt);
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111
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112 return Null();
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113 }
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114
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115 static Persistent<FunctionTemplate> xnjsmb_paint_temp;
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116 static Persistent<FunctionTemplate> xnjsmb_paint_color_temp;
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117
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118 /*! \brief Create and return a paint_color object.
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119 */
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120 static Handle<Value>
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121 xnjsmb_paint_color_new(const Arguments &args) {
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122 HandleScope scope;
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123 Handle<Object> rt = args.This();
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124 Handle<Object> paint_color_obj;
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125 Handle<Function> paint_color_func;
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126 Handle<Value> pc_args[5];
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127 int argc;
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128 int i;
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129
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130 argc = args.Length();
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131 if(argc != 4)
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132 THROW("Invalid number of arguments (r, g, b, a)");
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133 for(i = 0; i < 4; i++)
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134 if(!args[i]->IsNumber())
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135 THROW("Invalid argument type");
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136
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137 pc_args[0] = rt;
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138 pc_args[1] = args[0]; // r
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139 pc_args[2] = args[1]; // g
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140 pc_args[3] = args[2]; // b
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141 pc_args[4] = args[3]; // a
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142 paint_color_func = xnjsmb_paint_color_temp->GetFunction();
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143 paint_color_obj = paint_color_func->NewInstance(5, pc_args);
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144
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145 scope.Close(paint_color_obj);
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146 return paint_color_obj;
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147 }
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148
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149 static Persistent<FunctionTemplate> xnjsmb_paint_color_new_temp;
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150
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151 /*! \brief Create templates for paint types.
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152 *
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153 * This function is only called one time for every execution.
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154 */
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155 static void
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156 xnjsmb_init_paints(void) {
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157 Handle<FunctionTemplate> temp, meth;
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158 Handle<ObjectTemplate> inst_temp;
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159 Handle<ObjectTemplate> proto_temp;
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160
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161 /*
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162 * Base type of paint types.
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163 */
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164 temp = FunctionTemplate::New();
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165 xnjsmb_paint_temp = Persistent<FunctionTemplate>::New(temp);
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166 xnjsmb_paint_temp->SetClassName(String::New("paint"));
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167
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168 meth = FunctionTemplate::New(xnjsmb_paint_fill);
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169 proto_temp = xnjsmb_paint_temp->PrototypeTemplate();
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170 SET(proto_temp, "fill", meth);
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171
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172 meth = FunctionTemplate::New(xnjsmb_paint_stroke);
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173 proto_temp = xnjsmb_paint_temp->PrototypeTemplate();
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174 SET(proto_temp, "stroke", meth);
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175
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176 /*
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177 * Paint color
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178 */
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179 temp = FunctionTemplate::New(xnjsmb_paint_color);
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180 xnjsmb_paint_color_temp = Persistent<FunctionTemplate>::New(temp);
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181 xnjsmb_paint_color_temp->SetClassName(String::New("paint_color"));
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182 xnjsmb_paint_color_temp->Inherit(xnjsmb_paint_temp);
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183
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184 inst_temp = xnjsmb_paint_color_temp->InstanceTemplate();
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185 inst_temp->SetInternalFieldCount(1);
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186
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187 temp = FunctionTemplate::New(xnjsmb_paint_color_new);
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188 xnjsmb_paint_color_new_temp = Persistent<FunctionTemplate>::New(temp);
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189 }
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190
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191 void xnjsmb_paints_init_mb_rt_temp(Handle<FunctionTemplate> rt_temp) {
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192 static int init_flag = 0;
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193 Handle<ObjectTemplate> rt_proto_temp;
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194
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195 if(!init_flag) {
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196 xnjsmb_init_paints();
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197 init_flag = 1;
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198 }
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199
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200 rt_proto_temp = rt_temp->PrototypeTemplate();
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201 SET(rt_proto_temp, "paint_color_new", xnjsmb_paint_color_new_temp);
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202 }