1 | #ifndef _VIEWCELLS_PARSER_XERCES__H
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2 | #define _VIEWCELLS_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 | class VspBspTree;
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20 | class BspTree;
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21 | class ViewCellsManager;
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22 | class ViewCellsTree;
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23 | class VspTree;
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24 | class OspTree;
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25 | class VspNode;
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26 | class BvhNode;
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27 | class BvHierarchy;
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28 | class HierarchyManager;
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29 | class ObjectPvs;
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30 | class BspNode;
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31 |
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32 |
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33 | class ViewCellsParseHandlers: public HandlerBase
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34 | {
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35 | public:
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36 | // -----------------------------------------------------------------------
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37 | // Constructors and Destructor
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38 | // -----------------------------------------------------------------------
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39 | ViewCellsParseHandlers(ObjectContainer &pvsObjects,
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40 | ObjectContainer &preprocessorObjects,
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41 | BoundingBoxConverter *bconverter);
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42 | ~ViewCellsParseHandlers();
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43 |
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44 |
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45 | // -----------------------------------------------------------------------
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46 | // Getter methods
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47 | // -----------------------------------------------------------------------
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48 | unsigned int GetElementCount()
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49 | {
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50 | return mElementCount;
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51 | }
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52 |
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53 | unsigned int GetAttrCount()
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54 | {
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55 | return mAttrCount;
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56 | }
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57 |
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58 | unsigned int GetCharacterCount()
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59 | {
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60 | return mCharacterCount;
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61 | }
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62 |
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63 | unsigned int GetSpaceCount()
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64 | {
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65 | return mSpaceCount;
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66 | }
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67 |
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68 |
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69 | // -----------------------------------------------------------------------
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70 | // Handlers for the SAX DocumentHandler interface
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71 | // -----------------------------------------------------------------------
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72 | void endElement(const XMLCh* const name);
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73 | void startElement(const XMLCh* const name, AttributeList& attributes);
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74 | void characters(const XMLCh* const chars, const unsigned int length);
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75 | void ignorableWhitespace(const XMLCh* const chars, const unsigned int length);
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76 | void resetDocument();
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77 |
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78 | void CreateViewCellsManager();
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79 |
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80 |
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81 | /////////////////////////
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82 |
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83 | VspBspTree *mVspBspTree;
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84 | HierarchyManager *mHierarchyManager;
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85 |
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86 | BspTree *mBspTree;
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87 | ViewCellsTree *mViewCellsTree;
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88 | VspTree *mVspTree;
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89 |
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90 | BspNode *mCurrentBspNode;
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91 | BvhNode *mCurrentBvhNode;
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92 | KdNode *mCurrentOspNode;
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93 | VspNode *mCurrentVspNode;
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94 |
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95 | ViewCell *mCurrentViewCell;
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96 |
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97 | BspNode *mBspRoot;
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98 | VspNode *mVspRoot;
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99 | ViewCell *mViewCellRoot;
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100 |
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101 | int mUniqueObjectId;
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102 | vector<BvhLeaf *> mBvhLeaves;
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103 | //typedef map<int, ViewCell *> ViewCellsMap;
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104 | //ViewCellsMap mViewCells;
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105 | ViewCellContainer mViewCells;
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106 |
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107 | ViewCellsManager *mViewCellsManager;
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108 |
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109 | ObjectContainer &mPvsObjects;
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110 | const ObjectContainer &mPreprocessorObjects;
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111 |
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112 | BoundingBoxConverter *mBoundingBoxConverter;
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113 | AxisAlignedBox3 mViewSpaceBox;
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114 | IndexedBoundingBoxContainer mIBoundingBoxes;
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115 |
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116 | /// current state of the parser
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117 | int mCurrentState;
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118 |
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119 | enum {
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120 | PARSE_OPTIONS,
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121 | PARSE_VIEWCELLS,
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122 | PARSE_VIEWSPACE_HIERARCHY,
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123 | PARSE_OBJECTSPACE_HIERARCHY
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124 | };
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125 |
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126 | /// view space / object space hierarchy types
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127 | enum {BSP, VSP, OSP, BVH};
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128 |
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129 | int mViewSpaceHierarchyType;
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130 | int mObjectSpaceHierarchyType;
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131 | int nViewCells;
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132 | int nObjects;
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133 |
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134 |
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135 | ////////////////////////////////
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136 |
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137 |
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138 | // Handlers for X3D
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139 |
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140 | void StartBspLeaf(AttributeList& attributes);
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141 | void StartBspInterior(AttributeList& attributes);
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142 | void EndBspInterior();
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143 |
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144 | void StartVspLeaf(AttributeList& attributes);
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145 | void StartVspInterior(AttributeList& attributes);
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146 | void EndVspInterior();
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147 |
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148 | void StartViewCellPvs(ObjectPvs &pvs, const char *ptr);
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149 |
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150 | void EndViewCells();
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151 | void EndBoundingBoxes();
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152 |
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153 | void StartBspElement(string element, AttributeList& attributes);
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154 | void StartVspElement(string element, AttributeList& attributes);
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155 |
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156 | void StartViewSpaceHierarchy(AttributeList& attributes);
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157 | void StartObjectSpaceHierarchy(AttributeList& attributes);
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158 |
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159 | void StartBoundingBox(AttributeList& attributes);
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160 | void StartViewCell(AttributeList& attributes, const bool isLeaf);
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161 | void EndViewCellInterior();
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162 |
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163 | void StartViewSpaceHierarchyElement(const std::string &element, AttributeList& attributes);
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164 | void StartObjectSpaceHierarchyElement(const std::string &element, AttributeList& attributes);
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165 | void StartViewCellHierarchyElement(const std::string &element, AttributeList& attributes);
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166 |
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167 | void StartOspElement(string element, AttributeList& attributes);
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168 |
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169 | void StartOspLeaf(AttributeList& attributes);
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170 | void StartOspInterior(AttributeList& attributes);
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171 |
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172 | void CreateViewSpaceHierarchy();
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173 |
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174 | void StartBvhLeaf(AttributeList& attributes);
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175 | void StartBvhInterior(AttributeList& attributes);
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176 | void StartBvhElement(string element, AttributeList& attributes);
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177 |
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178 | void EndViewSpaceHierarchyInterior();
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179 | void EndObjectSpaceHierarchyInterior();
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180 |
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181 | void EndBvhInterior();
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182 | void EndOspInterior();
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183 |
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184 | void EndObjectSpaceHierarchy();
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185 |
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186 | void StartBvhLeafObjects(ObjectContainer &objects, const char *ptr);
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187 |
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188 | // -----------------------------------------------------------------------
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189 | // Handlers for the SAX ErrorHandler interface
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190 | // -----------------------------------------------------------------------
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191 |
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192 | void warning(const SAXParseException& exc);
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193 | void error(const SAXParseException& exc);
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194 | void fatalError(const SAXParseException& exc);
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195 |
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196 |
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197 | private:
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198 | // -----------------------------------------------------------------------
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199 | // Private data members
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200 | //
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201 | // fAttrCount
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202 | // fCharacterCount
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203 | // fElementCount
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204 | // fSpaceCount
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205 | // These are just counters that are run upwards based on the input
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206 | // from the document handlers.
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207 | // -----------------------------------------------------------------------
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208 | unsigned int mAttrCount;
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209 | unsigned int mCharacterCount;
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210 | unsigned int mElementCount;
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211 | unsigned int mSpaceCount;
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212 | };
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213 |
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214 | // ---------------------------------------------------------------------------
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215 | // This is a simple class that lets us do easy (though not terribly efficient)
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216 | // trancoding of XMLCh data to local code page for display.
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217 | // ---------------------------------------------------------------------------
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218 | class StrX
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219 | {
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220 | public :
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221 | // -----------------------------------------------------------------------
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222 | // Constructors and Destructor
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223 | // -----------------------------------------------------------------------
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224 | StrX(const XMLCh* const toTranscode)
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225 | {
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226 | // Call the private transcoding method
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227 | mLocalForm = XMLString::transcode(toTranscode);
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228 | }
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229 |
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230 | ~StrX()
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231 | {
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232 | XMLString::release(&mLocalForm);
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233 | }
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234 |
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235 | // -----------------------------------------------------------------------
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236 | // Getter methods
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237 | // -----------------------------------------------------------------------
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238 | const char* LocalForm() const
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239 | {
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240 | return mLocalForm;
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241 | }
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242 |
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243 | private :
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244 | // -----------------------------------------------------------------------
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245 | // Private data members
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246 | //
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247 | // fLocalForm
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248 | // This is the local code page form of the string.
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249 | // -----------------------------------------------------------------------
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250 | char* mLocalForm;
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251 | };
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252 |
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253 | inline XERCES_STD_QUALIFIER ostream&
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254 | operator<<(XERCES_STD_QUALIFIER ostream& target, const StrX& toDump)
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255 | {
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256 | target << toDump.LocalForm();
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257 | return target;
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258 | }
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259 | }
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260 |
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261 | #endif
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