General questions about Model in Qt (docs)

sierdzio

@Xilit said in General questions about Model in Qt (docs):

If I press F2 to name of class (for example QStringListModel) I go to header file. But where is cpp-files to see the impementation of it?

If you checked "Sources" during installation of Qt (in Qt installer) you should be able to go to the .cpp file after pressing F4.

But if you don't have Qt sources, then there is actually no .cpp file so Qt Creator cannot show it.

You can always look the file up, for example in Woboq code browser or by downloading Qt source code manually.

Also I'd like to find out what is Qt-class is? I mean Qt::green or Qt::TextFormat? When you type Qt:: you have huge list of autocomplite. Is this superglobal class?

It's a namespace. See the docs.

Xilit

@sierdzio

Thank you!

That's strange. I've checked "Sources" during installation of Qt but after pressing F4 nothing happend. For exmple I created in my project QAbstractItemModel *model;, put cursor on QAbstractItemModel and press F2 --> go to header (qabstractitemmodel.h). And after pressing F4 nothing happened. Did I made something wrong?

"It's a namespace. See the docs."

Got it. Thank you!

sierdzio

@Xilit said in General questions about Model in Qt (docs):

@sierdzio

Thank you!

That's strange. I've checked "Sources" during installation of Qt but after pressing F4 nothing happend. For exmple I created in my project QAbstractItemModel *model;, put cursor on QAbstractItemModel and press F2 --> go to header (qabstractitemmodel.h). And after pressing F4 nothing happened. Did I made something wrong?

Perhaps it does not work nowadays. Last time I tried this was a long time ago.

"It's a namespace. See the docs."

Got it. Thank you!

Xilit

@sierdzio

Found it in Woboq code browser. According it this file should be in qtbase/src/corelib/itemmodels/qabstractitemmodel.cpp. Thank you for this site.)

I just want to see how rowCount or colomnCount were implemented.

Is this link correct?

J.Hilk

@Xilit said in General questions about Model in Qt (docs):

That's strange. I've checked "Sources" during installation of Qt but after pressing F4 nothing happend. For exmple I created in my projectQAbstractItemModel *model;, put cursor on QAbstractItemModel and press F2 --> go to header (qabstractitemmodel.h). And after pressing F4 nothing happened. Did I made something wrong?

I'm pretty sure, you have to add the path manually in the settings of QtCreator.
Settings -> Debugger -> General -> Add QtSources

Xilit

@J-Hilk

Thank you!

If I correctly inderstand you meant this?

J.Hilk

@Xilit More or less, on the right side you can click on Add Qt sources that opens a QFileDialog, where you select the QtSource folder you downloaded.
After accepting, QtC should set up everything on its own!

Xilit

@J-Hilk

Still don't work.( But as I've mentioned above I've already found in Woboq code browser. On this link).

Interesting. I download Sources to make MySQL work, but it doesn't. Maybe that's why? Because Sqlite does. But I'm not sure what does Target path means.

jsulm

@Xilit Did you use "Add Qt sources..." button to add Qt sources?

Xilit

@jsulm

Yes, I did. I think I pressed just Add instead of Add Qt sources. Now it's look like:

But when I press F4 in header file (qabstractitemmodel.h) nothing happens. It still don't want to show me cpp file.