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