Creating new project from existing files

mzimmers

Hi, all -

I want to try importing a small project (currently about 10 files) into the Qt environment, so I can use tools like the Qt debugger. I'm not actually ready to use Qt's GUI stuff; I just want to get further acquainted with the environment.

With this in mind, which is the preferred way to get my files into a new project?

Thanks.

giesbert

You just use QtCreator to create a C++ project and add the files
The compile and start debugging...

mzimmers

Is it OK if I create the project using the directory with the existing files? Or, is that going to give me a conflict between my main.cpp and the one that Qt wants to make for me?

Also, when I create a project, will it create and maintain a makefile for me?

Thanks.

andre

QMake has a special command line parameter you can use to create a .pro file. Maybe you can use that?

giesbert

The command is:

@
qmake -project
@

andre

[quote author="Gerolf" date="1299868515"]The command is:

@
qmake -project
@
[/quote]

I thought I'd leave looking that up as an excercise for the reader ;-)

giesbert

sory, should I remove it, calling it censored?

mzimmers

Thanks, guys. I normally appreciate the value of exercises for the reader. If I don't get this code imported into Qt today, though, at least to where I can edit, build and do some rudimentary debugging, I may have to shelve Qt for the time and stay with the IDE that's currently giving me problems. So, for today anyway, product is more important than process.

So...is it OK if I build the project on top of a directory structure with subdirectories for source and includes? Or, is it better if I start with an empty project and import my files into it?

goetz

It is perfectly ok to start on top of the existing dir. But I personally would create a backup copy - just to be on the safe side.

mzimmers

Thanks, Volker. I guess what I'm trying to get at here is, there doesn't seem to be a traditional "import" function. I can create new files, or I can add existing files (but they don't "move" into the Qt directory structure). I was hoping that if I created my Qt project on top of an existing directory structure (which currently only contains two subdirectories), Qt would magically "discover" the files, but that doesn't seem to work, either.

It's a small enough number of files that I can just create new ones and cut and paste the contents from the old directory structure, but I was hoping there was a "smarter" way to do this.

goetz

That works as you expect it. Just cd into the toplevel directory of your project (that containing the two subdirs) and call

@
qmake -project
@

on the command line. This leaves a xxx.pro file in the dir, named after your directory. You can rename it it you want. qmake scans the dir recursively and puts all the header, implementation an UI files into the project file.

Then just open this .pro file in Creator and adjust all the settings.

mzimmers

OK, so...I hate to look like a thorough moron here, but...no use leaving things half-done.

I'm really inexperienced at command line stuff. I tried adding the path to the qmake program to my $PATH variable by adding this to my .bash_profile file:
@PATH="/Volumes/320 GB HD/Developer/Tools/Qt":$PATH
export PATH
@
But it still says qmake's not found. I realize this isn't a Qt question, but can someone tell me what I'm doing wrong here?

Thanks...

goetz

I don't know the directory layout the prebuilt Qt packages for the Mac (I suppose this from the "/Volumes/" path :-) ), but it might be that you have to append /bin after the Qt.

mzimmers

No, the path name is good...in that directory is a file (actually a link) called qmake. I just realized, though, that the link points to a directory that isn't there (/usr/bin/qmake-4.7). Perhaps I'd better uninstall and reinstall Qt?

goetz

You might use spotlight to search for the location of qmake. It is available on the commandline too:

@
mdfind -name qmake
@

mzimmers

Thanks for the tip on mdfind.

The qmake file really doesn't seem to be there. I think I'd like to start over with Qt; what's the clean way to uninstall it?

goetz

[quote author="mzimmers" date="1299882964"]Thanks for the tip on mdfind.

The qmake file really doesn't seem to be there. I think I'd like to start over with Qt; what's the clean way to uninstall it?[/quote]

Sorry, I really don't know. I started with Qt at the Mac long before the binary packages and had to compile it manually, so I stick to this until now :-)

You might search the forum here, if I remember correctly, this was covered some time ago.

What's really strange is, that there is no qmake - it looks as if the setup did not install every piece correctly. Did you install the SDK or only the Qt libs (aka framework)?

And were you asked for an administrator password? Directory /usr/bin is root owned, even as user with admin privileges you must sudo to write to it.

mzimmers

I don't remember the details of when I installed it the first time. I know that I've been around this tree once before.

I'm just going to wipe out the directories, reinstall and hope for the best. I'll report back in a bit.

goetz

Good luck!

mzimmers

Ahhhhhh...MUCH better!

I now have a qmake program (and who knows what else), and the new project created successfully over the existing source directories.

Qt also logically collects the files in the directory into Headers and Sources, so my existing directories created a second, undesired level of indirection. I moved all the files into one directory and did it over, and it seems fine now. (I might say that it's just a tad undesirable for Qt to do that, as it would be nice if I could preserve an existing directory structure, but...I'm not in the mood for complaining.)

Thanks for all the help, guys. It does seem better to do it from the command line.

BTW: the -project switch for qmake is undocumented, at least when you type "qmake" in the terminal window.