Overloading the QDataStream << and >> operators for a user-defined type
- by Alex Wood
I have a an object I'd like to be able to read and write to/from a QDataStream. The header is as follows:
class Compound
{
public:
Compound(QString, QPixmap*, Ui::MainWindow*);
void saveCurrentInfo();
void restoreSavedInfo(QGraphicsScene*);
void setImage(QPixmap*);
QString getName();
private:
QString name, homeNotes, addNotes, expText;
Ui::MainWindow *gui;
QPixmap *image;
struct NMRdata
{
QString hnmrText, cnmrText, hn_nmrText, hn_nmrNucl, notes;
int hnmrFreqIndex, cnmrFreqIndex, hn_nmrFreqIndex,
hnmrSolvIndex, cnmrSolvIndex, hn_nmrSolvIndex;
}*nmr_data;
struct IRdata
{
QString uvConc, lowResMethod,
irText, uvText, lowResText, highResText,
highResCalc, highResFnd, highResFrmla,
notes;
int irSolvIndex, uvSolvIndex;
}*ir_data;
struct PhysicalData
{
QString mpEdit, bpEdit, mpParensEdit, bpParensEdit,
rfEdit, phyText, optAlpha,
optConc, elemText, elemFrmla,
notes;
int phySolvIndex, optSolvIndex;
}*physical_data;
};
For all intensive purposes, the class just serves as an abstraction for a handful of QStrings and a QPixmap. Ideally, I would be able to write a QList to a QDataStream but I'm not exactly sure how to go about doing this.
If operator overloading is a suitable solution, would writing code like
friend QDataStream& operator << (QDataStream&,Compound) { ... }
be a potential solution? I'm very open to suggestions! Please let me know if any further clarification is needed.
