diff options
| author | Joshua Peek <josh@joshpeek.com> | 2012-08-27 11:33:28 -0500 |
|---|---|---|
| committer | Joshua Peek <josh@joshpeek.com> | 2012-08-27 11:33:28 -0500 |
| commit | 458890b4b9d90f3c3f9d24ac5c61f97385b84e34 (patch) | |
| tree | 604383e04a2ed7077cc282ca8af31da1346fe5a7 /samples/C++ | |
| parent | 89267f792d0dc125f0de324521be78cf9423d731 (diff) | |
Add C++ sample
Diffstat (limited to 'samples/C++')
| -rw-r--r-- | samples/C++/gdsdbreader.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/samples/C++/gdsdbreader.h b/samples/C++/gdsdbreader.h new file mode 100644 index 0000000..6646f6d --- /dev/null +++ b/samples/C++/gdsdbreader.h @@ -0,0 +1,69 @@ +#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
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