1 | #include <vrmllib/nodes.h> |
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2 | |
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3 | #include <map> |
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4 | #include <stdexcept> |
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5 | |
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6 | #include <vrmllib/types_bits.h> |
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7 | |
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8 | #define BEGIN_NODE(type) \ |
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9 | namespace {\ |
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10 | node_creator<type> register_##type##_creator(#type); \ |
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11 | } \ |
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12 | void type::parse_attribute(const std::string &a_name, \ |
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13 | std::istream &a_stream, file &a_data) \ |
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14 | { |
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15 | |
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16 | #define ATTR(d_var) \ |
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17 | if (a_name == #d_var) { \ |
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18 | using namespace bits; \ |
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19 | return parse_value(d_var, a_stream, a_data); \ |
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20 | } |
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21 | #define VATTR(d_var) \ |
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22 | if (a_name == #d_var) { \ |
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23 | using namespace bits; \ |
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24 | return parse_vector(d_var, a_stream, a_data); \ |
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25 | } |
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26 | #define END_NODE \ |
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27 | base_type::parse_attribute(a_name, a_stream, a_data); \ |
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28 | } |
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29 | |
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30 | #define BEGIN_DEFAULTS(type) \ |
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31 | type::type() : |
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32 | #define END_DEFAULTS \ |
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33 | {} |
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34 | |
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35 | namespace vrmllib { |
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36 | namespace bits { |
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37 | |
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38 | class node_creator_base { |
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39 | public: |
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40 | virtual ~node_creator_base() {} |
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41 | virtual node *create() = 0; |
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42 | }; |
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43 | |
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44 | std::map<std::string, node_creator_base *> g_node_creators; |
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45 | |
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46 | template<class Type> |
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47 | class node_creator : public node_creator_base { |
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48 | public: |
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49 | node_creator(const char *type) { g_node_creators[type] = this; } |
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50 | node *create() { return new Type; } |
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51 | }; |
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52 | |
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53 | } // namespace bits |
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54 | |
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55 | using namespace bits; |
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56 | |
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57 | node *node::create_node(const std::string &type) |
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58 | { |
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59 | node_creator_base *c = g_node_creators[type]; |
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60 | |
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61 | if (c) |
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62 | return c->create(); |
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63 | else { |
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64 | std::cerr << "unknown type: " << type << std::endl; |
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65 | return 0; |
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66 | } |
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67 | } |
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68 | |
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69 | BEGIN_NODE(grouping_node) |
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70 | VATTR(children) |
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71 | END_NODE |
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72 | |
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73 | BEGIN_DEFAULTS(Transform) |
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74 | translation(0,0,0), |
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75 | center(0,0,0), |
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76 | scale(1,1,1) |
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77 | END_DEFAULTS |
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78 | BEGIN_NODE(Transform) |
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79 | ATTR(translation) |
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80 | ATTR(rotation) |
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81 | ATTR(center) |
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82 | ATTR(scale) |
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83 | ATTR(scaleOrientation) |
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84 | END_NODE |
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85 | |
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86 | BEGIN_NODE(Group) |
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87 | END_NODE |
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88 | |
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89 | BEGIN_DEFAULTS(Shape) |
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90 | appearance(0), |
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91 | geometry(0) |
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92 | END_DEFAULTS |
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93 | BEGIN_NODE(Shape) |
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94 | ATTR(appearance) |
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95 | ATTR(geometry) |
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96 | END_NODE |
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97 | |
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98 | BEGIN_DEFAULTS(Switch) |
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99 | whichChoice(0) |
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100 | END_DEFAULTS |
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101 | BEGIN_NODE(Switch) |
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102 | VATTR(choice) |
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103 | ATTR(whichChoice) |
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104 | END_NODE |
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105 | |
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106 | BEGIN_DEFAULTS(Viewpoint) |
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107 | fieldOfView(0.785398), |
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108 | position(0,0,10) |
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109 | END_DEFAULTS |
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110 | BEGIN_NODE(Viewpoint) |
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111 | ATTR(fieldOfView) |
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112 | ATTR(orientation) |
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113 | ATTR(position) |
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114 | ATTR(description) |
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115 | END_NODE |
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116 | |
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117 | BEGIN_DEFAULTS(Appearance) |
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118 | material(0), |
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119 | texture(0) |
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120 | END_DEFAULTS |
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121 | BEGIN_NODE(Appearance) |
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122 | ATTR(material) |
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123 | ATTR(texture) |
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124 | END_NODE |
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125 | |
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126 | BEGIN_NODE(WorldInfo) |
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127 | ATTR(title) |
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128 | VATTR(info) |
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129 | END_NODE |
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130 | |
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131 | BEGIN_DEFAULTS(Material) |
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132 | diffuseColor(204,204,204), |
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133 | specularColor(0,0,0), |
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134 | emissiveColor(0,0,0), |
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135 | ambientIntensity(0.2), |
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136 | shininess(0.2), |
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137 | transparency(0) |
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138 | END_DEFAULTS |
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139 | BEGIN_NODE(Material) |
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140 | ATTR(diffuseColor) |
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141 | ATTR(specularColor) |
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142 | ATTR(emissiveColor) |
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143 | ATTR(ambientIntensity) |
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144 | ATTR(shininess) |
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145 | ATTR(transparency) |
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146 | END_NODE |
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147 | |
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148 | BEGIN_DEFAULTS(IndexedFaceSet) |
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149 | solid(true), |
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150 | convex(true), |
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151 | ccw(true), |
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152 | normalPerVertex(true), |
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153 | colorPerVertex(true), |
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154 | coord(0), |
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155 | normal(0), |
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156 | texCoord(0), |
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157 | color(0) |
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158 | END_DEFAULTS |
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159 | BEGIN_NODE(IndexedFaceSet) |
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160 | ATTR(solid) |
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161 | ATTR(convex) |
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162 | ATTR(ccw) |
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163 | ATTR(normalPerVertex) |
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164 | ATTR(colorPerVertex) |
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165 | ATTR(coord) |
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166 | ATTR(color) |
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167 | ATTR(normal) |
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168 | ATTR(texCoord) |
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169 | VATTR(coordIndex) |
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170 | VATTR(texCoordIndex) |
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171 | VATTR(normalIndex) |
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172 | VATTR(colorIndex) |
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173 | END_NODE |
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174 | |
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175 | BEGIN_NODE(Coordinate) |
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176 | VATTR(point) |
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177 | END_NODE |
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178 | |
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179 | BEGIN_NODE(Color) |
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180 | VATTR(color) |
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181 | END_NODE |
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182 | |
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183 | BEGIN_NODE(Box) |
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184 | ATTR(size) |
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185 | END_NODE |
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186 | |
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187 | BEGIN_NODE(Sphere) |
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188 | ATTR(radius) |
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189 | END_NODE |
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190 | |
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191 | BEGIN_NODE(TextureCoordinate) |
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192 | VATTR(point) |
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193 | END_NODE |
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194 | |
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195 | BEGIN_NODE(Normal) |
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196 | VATTR(vector) |
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197 | END_NODE |
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198 | |
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199 | BEGIN_DEFAULTS(ImageTexture) |
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200 | repeatS(true), repeatT(true) |
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201 | END_DEFAULTS |
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202 | BEGIN_NODE(ImageTexture) |
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203 | VATTR(url) |
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204 | ATTR(repeatS) |
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205 | ATTR(repeatT) |
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206 | END_NODE |
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207 | |
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208 | } // namespace vrmllib |
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