1 | #ifndef _OBJECTS_PARSER_XERCES__H
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2 | #define _OBJECTS_PARSER_XERCES__H
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3 |
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4 | // ---------------------------------------------------------------------------
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5 | // Includes
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6 | // ---------------------------------------------------------------------------
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7 | #include <xercesc/sax/HandlerBase.hpp>
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8 | #include "Mesh.h"
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9 | #include "BoundingBoxConverter.h"
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10 |
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11 |
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12 | namespace GtpVisibilityPreprocessor {
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13 |
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14 | XERCES_CPP_NAMESPACE_USE
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15 | XERCES_CPP_NAMESPACE_BEGIN
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16 | class AttributeList;
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17 | XERCES_CPP_NAMESPACE_END
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18 |
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19 |
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20 | class BvhNode;
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21 | class BvHierarchy;
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22 |
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23 |
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24 | class ObjectsParseHandlers: public HandlerBase
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25 | {
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26 | public:
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27 |
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28 | friend class BvHierarchy;
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29 |
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30 | // -----------------------------------------------------------------------
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31 | // Constructors and Destructor
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32 | // -----------------------------------------------------------------------
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33 |
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34 | ObjectsParseHandlers(ObjectContainer &pvsObjects,
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35 | const ObjectContainer &preprocessorObjects);
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36 |
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37 | ~ObjectsParseHandlers();
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38 |
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39 |
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40 | // -----------------------------------------------------------------------
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41 | // Getter methods
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42 | // -----------------------------------------------------------------------
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43 |
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44 | unsigned int GetElementCount()
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45 | {
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46 | return mElementCount;
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47 | }
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48 |
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49 | unsigned int GetAttrCount()
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50 | {
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51 | return mAttrCount;
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52 | }
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53 |
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54 | unsigned int GetCharacterCount()
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55 | {
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56 | return mCharacterCount;
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57 | }
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58 |
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59 | unsigned int GetSpaceCount()
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60 | {
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61 | return mSpaceCount;
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62 | }
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63 |
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64 |
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65 | // -----------------------------------------------------------------------
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66 | // Handlers for the SAX DocumentHandler interface
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67 | // -----------------------------------------------------------------------
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68 |
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69 | void endElement(const XMLCh* const name);
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70 | void startElement(const XMLCh* const name, AttributeList& attributes);
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71 | void characters(const XMLCh* const chars, const unsigned int length);
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72 | void ignorableWhitespace(const XMLCh* const chars, const unsigned int length);
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73 | void resetDocument();
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74 |
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75 | void StartObjectSpaceHierarchyElement(const std::string &element,
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76 | AttributeList& attributes);
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77 |
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78 | /////////////////////////
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79 |
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80 | int mUniqueObjectId;
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81 |
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82 | vector<BvhLeaf *> mBvhLeaves;
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83 |
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84 | const ObjectContainer &mPreprocessorObjects;
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85 | ObjectContainer &mPvsObjects;
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86 |
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87 | /// current state of the parser
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88 | bool mIsObjectSpaceHierarchy;
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89 |
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90 | enum {BVH};
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91 |
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92 | ////////////
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93 | //-- Handlers for X3D
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94 |
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95 | void StartBvhLeaf(AttributeList& attributes);
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96 | void StartBvhElement(std::string element, AttributeList& attributes);
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97 |
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98 | void EndObjectSpaceHierarchy();
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99 |
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100 | void StartBvhLeafObjects(ObjectContainer &objects, const char *ptr);
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101 |
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102 | // -----------------------------------------------------------------------
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103 | // Handlers for the SAX ErrorHandler interface
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104 | // -----------------------------------------------------------------------
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105 |
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106 | void warning(const SAXParseException& exc);
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107 | void error(const SAXParseException& exc);
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108 | void fatalError(const SAXParseException& exc);
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109 |
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110 |
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111 | private:
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112 | // -----------------------------------------------------------------------
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113 | // Private data members
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114 | //
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115 | // fAttrCount
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116 | // fCharacterCount
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117 | // fElementCount
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118 | // fSpaceCount
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119 | // These are just counters that are run upwards based on the input
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120 | // from the document handlers.
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121 | // -----------------------------------------------------------------------
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122 | unsigned int mAttrCount;
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123 | unsigned int mCharacterCount;
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124 | unsigned int mElementCount;
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125 | unsigned int mSpaceCount;
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126 | };
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127 |
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128 | // ---------------------------------------------------------------------------
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129 | // This is a simple class that lets us do easy (though not terribly efficient)
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130 | // trancoding of XMLCh data to local code page for display.
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131 | // ---------------------------------------------------------------------------
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132 | class StrX
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133 | {
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134 | public :
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135 | // -----------------------------------------------------------------------
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136 | // Constructors and Destructor
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137 | // -----------------------------------------------------------------------
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138 | StrX(const XMLCh* const toTranscode)
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139 | {
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140 | // Call the private transcoding method
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141 | mLocalForm = XMLString::transcode(toTranscode);
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142 | }
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143 |
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144 | ~StrX()
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145 | {
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146 | XMLString::release(&mLocalForm);
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147 | }
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148 |
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149 | // -----------------------------------------------------------------------
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150 | // Getter methods
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151 | // -----------------------------------------------------------------------
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152 | const char* LocalForm() const
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153 | {
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154 | return mLocalForm;
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155 | }
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156 |
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157 | private :
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158 | // -----------------------------------------------------------------------
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159 | // Private data members
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160 | //
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161 | // fLocalForm
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162 | // This is the local code page form of the string.
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163 | // -----------------------------------------------------------------------
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164 | char* mLocalForm;
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165 | };
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166 |
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167 | inline XERCES_STD_QUALIFIER ostream&
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168 | operator<<(XERCES_STD_QUALIFIER ostream& target, const StrX& toDump)
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169 | {
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170 | target << toDump.LocalForm();
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171 | return target;
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172 | }
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173 | }
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174 |
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175 | #endif
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