150 lines
4.9 KiB
Objective-C
150 lines
4.9 KiB
Objective-C
/****************************************************************************
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Copyright (c) 2009, Radon Labs GmbH
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#pragma once
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//------------------------------------------------------------------------------
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/**
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@class IO::BXmlLoaderUtil
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Helper class for loading binary xml files created with N3's
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binaryxmlconverter3 tool. BXmlLoaderUtil objects are usually
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not used directly, but are wrapped by higher level classes
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like XmlReader.
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Uses raw char pointers so that the class can both be used
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with Nebula2 and Nebula3.
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*/
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#include "core/types.h"
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#include "io/util/bxmlfilestructs.h"
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#include "util/array.h"
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//------------------------------------------------------------------------------
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namespace IO
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{
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class BXmlLoaderUtil
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{
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public:
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static const ushort InvalidNodeIndex = 0xffff;
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static const uint InvalidAttrIndex = 0xffffffff;
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/// constructor
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BXmlLoaderUtil();
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/// destructor
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~BXmlLoaderUtil();
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/// setup the object from a file-in-memory, buffer must remain intact until Discard() is called!
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void SetupFromFileInMemory(void* buf, SizeT size);
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/// discard the object
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void Discard();
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/// return true if the object has been setup
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bool IsValid() const;
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/// find a node index by path
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ushort FindNodeIndex(const char* path) const;
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/// set cursor to node index
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void SetCurrentNodeIndex(ushort index);
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/// get current node index
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ushort GetCurrentNodeIndex() const;
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/// get name of current node
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const char* GetCurrentNodeName() const;
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/// set cursor to first matching child node, name may point to empty string
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bool SetToFirstChild(const char* name);
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/// set cursor to next matching child node, name may point to empty string
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bool SetToNextChild(const char* name);
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/// set to parent node
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bool SetToParent();
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/// find attribute index by name
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uint FindAttrIndex(const char* attrName) const;
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/// get number of attributes on node
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uint GetNumAttrs() const;
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/// get name of attribute by index
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const char* GetAttrName(uint attrIndex) const;
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/// get value of attribute by index
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const char* GetAttrValue(uint attrIndex) const;
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/// find a child node index by name, name may point to empty string
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ushort FindChildNodeIndex(ushort nodeIndex, const char* childName) const;
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/// find a sibling node index by name, name may point to empty string
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ushort FindSiblingNodeIndex(ushort nodeIndex, const char* sibName) const;
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/// get the parent node index of a node
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ushort GetParentNodeIndex(ushort nodeIndex) const;
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/// get name of a given node
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const char* GetNodeName(ushort nodeIndex) const;
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private:
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void* buffer;
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SizeT bufSize;
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BXMLFileHeader* header;
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BXMLFileAttr* attrs;
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BXMLFileNode* nodes;
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Util::Array<const char*> stringTable;
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ushort curNodeIndex;
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};
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//------------------------------------------------------------------------------
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/**
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*/
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inline bool
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BXmlLoaderUtil::IsValid() const
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{
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return (0 != this->buffer);
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline void
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BXmlLoaderUtil::SetCurrentNodeIndex(ushort i)
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{
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n_assert((0 != this->header) && (i < this->header->numNodes));
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this->curNodeIndex = i;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline ushort
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BXmlLoaderUtil::GetCurrentNodeIndex() const
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{
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return this->curNodeIndex;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline const char*
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BXmlLoaderUtil::GetCurrentNodeName() const
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{
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n_assert(InvalidNodeIndex != this->curNodeIndex);
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return this->stringTable[this->nodes[this->curNodeIndex].nameIndex];
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}
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} // namespace IO
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//------------------------------------------------------------------------------
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