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Luna, CDT 8.4 and Qt [message #1387755]

Wed, 25 June 2014 10:45

Eclipse User

After reading the new and noteworthy changes for CD 8.3:
https://wiki.eclipse.org/CDT/User/NewIn83
I was excited that Qt might finally get proper support in Eclipse. Now that Luna and CDT 8.4 are out I couldn't wait to give the Qt support a try hoping at least basic functionality would work just fine. I pretty much only care about QMake and the indexer working fine, I don't need fancy UI editors, QML, etc.

After downloading the fresh Eclipse 4.4 release and the extra Qt support plug-in (not installed by default) I made the follwing observations:
- Syntax highlighting works fine - good
- The indexer could process Qt headers - awesome
- QMake is automatically run to generate Makefiles - good
- No automatic updates of the .pro file - bad

So the editor and indexer seem to work, but when I add a new class for example, it is not automatically inserted in the .pro file. The old Nokia Qt integration plug-in used to do that, and my understanding is that this should be fairly simple to automate.

Are there any plans to improve the QMake support with this feature? Is there any way to achieve it with CDT 8.4?

Thanks.

Re: Luna, CDT 8.4 and Qt [message #1387863 is a reply to message #1387755]

Wed, 25 June 2014 13:54

Eclipse User

Thanks! I'm glad it's useful. And, yes, it's still a work in progress and updating the .pro files is definitely on the roadmap as is more automated management of qmake calls at build time. I'd like to have that in place by the September release.

The tough thing will be getting QML editor support and I'm working on that as well but it may take more time. It's glad to hear that better qmake support is probably a higher priority. I'll address that first, though it would be good to hear from others.

Cheers,
Doug.

Re: Luna, CDT 8.4 and Qt [message #1388989 is a reply to message #1387863]

Fri, 27 June 2014 03:17

Eclipse User

And what about more useful things like:
- proper completion for signal/slots inside macros SIGNAL/SLOT?
- displaying Qt-specific types in the debugger (especially MinGW toolchain)?
- easy way to open Qt documentation from code or during completion?

Re: Luna, CDT 8.4 and Qt [message #1389040 is a reply to message #1388989]

Fri, 27 June 2014 04:49

Eclipse User

Quote:

- displaying Qt-specific types in the debugger (especially MinGW toolchain)?

Your gdb version should support Python. Then you can use the Python pretty printer.
If have used the pretty printers from Kdevelop (you can remove the KDE parts and use only the pure Qt classes)
Get https://projects.kde.org/projects/extragear/kdevelop/kdevelop/repository/revisions/master/changes/debuggers/gdb/printers/qt4.py
and save it as qt_printers_gdb

- to use it put the following lines in your ~/.gdbinit

python
import sys
sys.path.insert(0, '/path/to/qt_printers_gdb')
from qt_printers_gdb import register_qt4_printers 
register_qt4_printers (None)
end
set print pretty 1

Quote:

- easy way to open Qt documentation from code or during completion?

Trolltech and then Nokia provided for some time an Eclipse plugin for Qt which also contained help files. Unfortunately, the Nokia download link is not available anymore after Nokia "joined" Microsoft. But you can still find it in the Internet, e.g. from ftp://ftp.informatik.hu-berlin.de/pub/Linux/Qt/QT/qteclipse

You should download the file com.trolltech.help_4.6.1.zip and unzip it in your eclipse/dropins folder. Direct linking between code and help is still not possible but you can search for the Qt classes then in the help system in Eclipse.
Keep in mind this is the documentation only for Qt 4.6 Sad

Newer versions are accessible from the Qt homepage directly http://qt-project.org/doc/qt-5/classes.html

Perhaps someone finds a way to convert the Qt help to Eclipse help ...

Re: Luna, CDT 8.4 and Qt [message #1397817 is a reply to message #1389040]

Thu, 10 July 2014 03:40

Eclipse User

Just one more thing. As far as I see now, setting the Qt version (directory) can only be done on a per project basis. There needs to be a workspace-wide setting for this. Otherwise, project files commited to a repository, will be specific for a particular user's installation environment.

Re: Luna, CDT 8.4 and Qt [message #1403769 is a reply to message #1387755]

Sat, 26 July 2014 10:59

Eclipse User

Dimitar Asenov wrote on Wed, 25 June 2014 10:45

After reading the new and noteworthy changes for CD 8.3:
https://wiki.eclipse.org/CDT/User/NewIn83

After downloading the fresh Eclipse 4.4 release and the extra Qt support plug-in (not installed by default) I made the follwing observations:
- Syntax highlighting works fine - good
- The indexer could process Qt headers - awesome
- QMake is automatically run to generate Makefiles - good
- No automatic updates of the .pro file - bad

Where can the Qt support plug-in be found?

Re: Luna, CDT 8.4 and Qt [message #1404945 is a reply to message #1403769]

Wed, 06 August 2014 03:57

Eclipse User

Kamil Saigol wrote on Sat, 26 July 2014 10:59

Where can the Qt support plug-in be found?

It is in the standard Luna repository: http://download.eclipse.org/releases/luna

Under: Programming Languages > C/C++ Qt Support

Re: Luna, CDT 8.4 and Qt [message #1408531 is a reply to message #1404945]

Fri, 15 August 2014 05:48

Eclipse User

Dimitar Asenov wrote on Wed, 06 August 2014 03:57

Kamil Saigol wrote on Sat, 26 July 2014 10:59

Where can the Qt support plug-in be found?

It is in the standard Luna repository: http://download.eclipse.org/releases/luna

Under: Programming Languages > C/C++ Qt Support

Hi Dimitar,

what I want to do is, using qt 5.3.1 together with Eclipse Luna and CDT C++ 8.4.0 on a Win7 platform. Unfortunately I'm a beginner in Qt and Eclipse and I have problems to get a running system.

What I have done is, I have installed the following packages:
eclipse-cpp-luna-R-win32.zip
qt-opensource-windows-x86-mingw482_opengl-5.3.1.exe
mingw-get-setup.exe
C/C++ Qt Support
setting the PATH in windows environment C:\MinGW\bin;c:\Qt\Qt5.3.1\5.3\mingw482_32\bin

My problem is, if I want to create a new C++ project using Qt in "Project type" I cannot see any support for Qt expect in "Makefile project" the "Qt5 Hello World Project". If I try to make a "Qt5 Hello World Project" I get a lot of errors:

Function 'QStringLiteral' could not be resolved Hello World.cpp /Hello World/src line 14 Semantic Error
Function 'quit' could not be resolved Hello World.cpp /Hello World/src line 17 Semantic Error
Function 'quit' could not be resolved Hello World.cpp /Hello World/src line 17 Semantic Error
Function 'SIGNAL' could not be resolved Hello World.cpp /Hello World/src line 17 Semantic Error
Function 'SLOT' could not be resolved Hello World.cpp /Hello World/src line 17 Semantic Error
make: *** [QtMakefile] Error 2 Hello World C/C++ Problem
Method 'connect' could not be resolved Hello World.cpp /Hello World/src line 17 Semantic Error
Method 'engine' could not be resolved Hello World.cpp /Hello World/src line 17 Semantic Error
Method 'exec' could not be resolved Hello World.cpp /Hello World/src line 19 Semantic Error
Method 'rootContext' could not be resolved Hello World.cpp /Hello World/src line 13 Semantic Error
Method 'setContextProperty' could not be resolved Hello World.cpp /Hello World/src line 13 Semantic Error
Method 'setSource' could not be resolved Hello World.cpp /Hello World/src line 14 Semantic Error
Method 'show' could not be resolved Hello World.cpp /Hello World/src line 15 Semantic Error
recipe for target 'QtMakefile' failed Makefile /Hello World line 12 C/C++ Problem
Type 'QGuiApplication' could not be resolved Hello World.cpp /Hello World/src line 8 Semantic Error
Type 'QQuickView' could not be resolved Hello World.cpp /Hello World/src line 12 Semantic Error

Now my questions:
does the Qt plugin do not work correctly?
is there missing something to installed?
where can I find a detailed installation description?
what have I do else to install for using Qt?

Cheers,
Dietmar

Re: Luna, CDT 8.4 and Qt [message #1446328 is a reply to message #1387755]

Thu, 16 October 2014 13:43

Eclipse User

Hello,
I tried this plugin without success. I just need Eclipse to index my code.
I have installed Eclipse CDT Luna and C/C++ Qt support on a Ubuntu OS.

I added all the subfolders of QT /usr/include/qt4/* into
Properties > C/C++ general > Path and Symbols
Also I checked (without knowing exactly what it does) the "Qt installed Headers" into
Properties > C/C++ general > Preprocessor Include Paths, Macros etc > tab Providers

Some of QT objects are recognised but much of them are not (macros, slots, etc..)

Disd I miss something ?
Thank you for any answer.

Re: Luna, CDT 8.4 and Qt [message #1677323 is a reply to message #1387755]

Sun, 15 March 2015 17:29

Eclipse User

hello,
thank you for the information.
I'd like to use Qt libraries but without leaving eclipse-cdt (yes, C++).

Do you know please a site where any "concrete" information (i.e configure eclipse luna with Qt libraries) about this ?
Thank you, Dominique

Re: Luna, CDT 8.4 and Qt [message #1682708 is a reply to message #1677323]

Tue, 17 March 2015 17:00

Eclipse User

hello Dominique (well ...I reply to myself),

see other replies before asking this general question Smile

Plugin is under: Programming Languages > C/C++ Qt Support

The "Hello World from Qt 5" proposed in eclipse compiles and run without problems ...but it is necessary to install this on Fedora 21 before :

# cp /usr/bin/qmake-qt5 /usr/bin/qmake
# yum install qt5-qtdeclarative-devel

personnaly I 've also installed qtcreator (yes it works on fedora 21):
see files in in download.qt.io/official_releases/qtcreator/3.3/3.3.2/
$ ./qt-creator-opensource-linux-x86_64-3.3.2.run
Dominique

Re: Luna, CDT 8.4 and Qt [message #1693133 is a reply to message #1387755]

Tue, 21 April 2015 22:30

Eclipse User

Hello,
I tried this plugin on Mac OS Yosemite. I just need Eclipse to index my code.
But I couldn't get successful result.

- Some of QT objects are recognised but much of them are not (macros, slots, etc..)
- Eclipse works for "Serialize CDT language setttings entries", and it does not progress for a day.

I added include paths of Qt headers. But nothing is changed.
Did I need to do something else?
Thank you for any answer.

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