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70 lines
3.2 KiB
C++
70 lines
3.2 KiB
C++
#ifndef GDSDBREADER_H
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#define GDSDBREADER_H
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// This file contains core structures, classes and types for the entire gds app
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// WARNING: DO NOT MODIFY UNTIL IT'S STRICTLY NECESSARY
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#include <QDir>
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#include "diagramwidget/qgldiagramwidget.h"
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#define GDS_DIR "gdsdata"
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enum level {LEVEL_ONE, LEVEL_TWO, LEVEL_THREE};
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// The internal structure of the db to store information about each node (each level)
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// this will be serialized before being written to file
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class dbDataStructure
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{
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public:
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QString label;
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quint32 depth;
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quint32 userIndex;
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QByteArray data; // This is COMPRESSED data, optimize ram and disk space, is decompressed
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// just when needed (to display the comments)
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// The following ID is used to create second-third level files
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quint64 uniqueID;
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// All the next items linked to this one
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QVector<dbDataStructure*> nextItems;
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// Corresponding indices vector (used to store data)
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QVector<quint32> nextItemsIndices;
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// The father element (or NULL if it's root)
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dbDataStructure* father;
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// Corresponding indices vector (used to store data)
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quint32 fatherIndex;
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bool noFatherRoot; // Used to tell if this node is the root (so hasn't a father)
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// These fields will be useful for levels 2 and 3
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QString fileName; // Relative filename for the associated code file
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QByteArray firstLineData; // Compressed first line data, this will be used with the line number to retrieve info
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QVector<quint32> linesNumbers; // First and next lines (next are relative to the first) numbers
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// -- Generic system data not to be stored on disk
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void *glPointer; // GL pointer
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// These operator overrides prevent the glPointer and other non-disk-necessary data serialization
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friend QDataStream& operator<<(QDataStream& stream, const dbDataStructure& myclass)
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// Notice: this function has to be "friend" because it cannot be a member function, member functions
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// have an additional parameter "this" which isn't in the argument list of an operator overload. A friend
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// function has full access to private data of the class without having the "this" argument
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{
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// Don't write glPointer and every pointer-dependent structure
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return stream << myclass.label << myclass.depth << myclass.userIndex << qCompress(myclass.data)
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<< myclass.uniqueID << myclass.nextItemsIndices << myclass.fatherIndex << myclass.noFatherRoot
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<< myclass.fileName << qCompress(myclass.firstLineData) << myclass.linesNumbers;
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}
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friend QDataStream& operator>>(QDataStream& stream, dbDataStructure& myclass)
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{
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//Don't read it, either
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stream >> myclass.label >> myclass.depth >> myclass.userIndex >> myclass.data
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>> myclass.uniqueID >> myclass.nextItemsIndices >> myclass.fatherIndex >> myclass.noFatherRoot
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>> myclass.fileName >> myclass.firstLineData >> myclass.linesNumbers;
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myclass.data = qUncompress(myclass.data);
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myclass.firstLineData = qUncompress(myclass.firstLineData);
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return stream;
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}
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};
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#endif // GDSDBREADER_H
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