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  • Qt QListView - context menus?

    - by QLatvia
    I'm trying to add a context (right click) menu to a Qt QListView. I see in Qt 3.3 there is "contextMenuRequested" (which I could use) - http://doc.trolltech.com/3.3/qlistview.html#contextMenuRequested. However, I can't see such a method in Qt4. Does anyone know how to add a context menu to a QListView?

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  • LDAP c++ API choice

    - by ypnos
    I would like to write my own LDAP client under Linux, specific to our local environment. Most probably I will use QT4 to provide a shiny frontend without much hassle. I found that there seems to be no standard C++ library for this. OpenLDAP provides a C API and there should also be a C++ API (experimental?) somewhere.. Do I need to use the C stuff or is there a C++ API out there worth of recommendation?

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  • How to remove package from apt-get autoremove "queue"

    - by Darth
    I just installed Calibre for ebook management via apt-get on Ubuntu 10.04, however I found out that it's one major version behind the current release, so I decided to reinstall it directly from sources. When I uninstalled the packaged version, apt added bunch of dependencies to the autoremove queue, and as I installed newer version of Calibre from sources, it has no knowledge of it being dependent on those packages. Now I basically have all libraries that I want, but they are still in the autoremove queue. The following packages were automatically installed and are no longer required: libqt4-script libqt4-designer libqt4-dbus python-lxml python-cherrypy3 python-encutils libqt4-xmlpatterns libqt4-help python-qt4 python-clientform python-sip python-django python-mechanize libqt4-svg python-django-tagging libphonon4 libqt4-xml libqt4-assistant libqt4-webkit libqt4-scripttools python-beautifulsoup python-pypdf python-dateutil python-cssutils Use 'apt-get autoremove' to remove them. How do I tell apt that I want to keep these packages installed, without reinstalling them manually?

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  • Windows 7 just corrupted Microsoft F# and now won't fix itself.

    - by user225626
    I lost half a year's worth of custom CGAL/GMP/LEDA/Qt3/Qt4/MPFR/MPFI/Visual Studio/Boost/blahblahblah open source nonsense with DLLs that are scattered in various parts of the OS that I had gotten to finally work. All because F#, which came with .NET 4 and which I never, ever used, is now "corrupted" one day for reasons only Windows 7 knows, and now Windows 7 won't even boot. Of course none--none--of the above setup works as accessed from the USB port. How do I remove a corrupted file that prevents a Windows 7 from booting, or even being fixed by an external CD mount of the Windows 7? Thanks for any help.

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  • How to Run Pam Face Authentication

    - by Supriyo Banerjee
    I am using Ubuntu 11.10. I went to the following URL to download the software 'Pam Face Authentication': http://ppa.launchpad.net/antonio.chiurazzi/ppa/ubuntu/pool/main/p/pam-face-authentication/ and downloaded the version for natty narhwall. I installed the software using the following commands: sudo apt-get install build-essential cmake qt4-qmake libx11-dev libcv-dev libcvaux-dev libhighgui2.1 libhighgui-dev libqt4-dev libpam0g-dev checkinstall cd /tmp && wget http://pam-face-authentication.googlecode.com /files/pam-face-authentication-0.3.tar.gz sudo add-apt-repository ppa:antonio.chiurazzi sudo apt-get update sudo apt-get install pam-face-authentication cat << EOF | sudo tee /usr/share/pam-configs/face_authentication /dev/null Name: face_authentication profile Default: yes Priority: 900 Auth-Type: Primary Auth: [success=end default=ignore] pam_face_authentication.so enableX EOF sudo pam-auth-update --package face_authentication The software installed and I can run the qt-facetrainer. But the problem is when I restarted my system, I saw that the default login screen is appearing where I should put my password to login. The webcam is not starting at all. And I cannot login with my face. Which means I think that pam face authentication programme is not starting at all. Please let me know how I can login with my face using pam face authentication programme.

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  • fern-wifi-cracker "Exec format error" breaks packaging system

    - by cunix
    root@cunix:/home/cunix# sudo apt-get remove fern-wifi-cracker Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: libqt4-test libqt4-sql-mysql mysql-common libqt4-xmlpatterns libqt4-help python-qt4 python-sip libqt4-sql-sqlite libqt4-sql macchanger libqt4-designer libmysqlclient16 python-scapy libqt4-scripttools Use 'apt-get autoremove' to remove them. The following packages will be REMOVED: fern-wifi-cracker 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. After this operation, 3,514kB disk space will be freed. Do you want to continue [Y/n]? y (Reading database ... 167661 files and directories currently installed.) Removing fern-wifi-cracker ... dpkg (subprocess): unable to execute installed pre-removal script (/var/lib/dpkg/info/fern-wifi-cracker.prerm): Exec format error dpkg: error processing fern-wifi-cracker (--remove): subprocess installed pre-removal script returned error exit status 2 Errors were encountered while processing: fern-wifi-cracker E: Sub-process /usr/bin/dpkg returned an error code (1) how to uninstall?

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  • Building LMMS: "Configuring incomplete, errors occurred!"

    - by fridojet
    I tried to build Linux MultiMedia studio from the source of the SourceForge git:// repository under Ubuntu 12.04 LTS 32b: git clone git://lmms.git.sourceforge.net/gitroot/lmms/lmms cd lmms git checkout First I tried to install all the required libraries and then I cmaked. - That's what happened on cmake (errors occurred!): [DIR]lmms/build$ cmake .. -- The C compiler identification is GNU -- The CXX compiler identification is GNU -- Check for working C compiler: /usr/bin/gcc -- Check for working C compiler: /usr/bin/gcc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done PROCESSOR: i686 Machine: i686-linux-gnu -- Target host is 32 bit -- Looking for include files LMMS_HAVE_STDINT_H -- Looking for include files LMMS_HAVE_STDINT_H - found -- Looking for include files LMMS_HAVE_STDBOOL_H -- Looking for include files LMMS_HAVE_STDBOOL_H - found -- Looking for include files LMMS_HAVE_STDLIB_H -- Looking for include files LMMS_HAVE_STDLIB_H - found -- Looking for include files LMMS_HAVE_PTHREAD_H -- Looking for include files LMMS_HAVE_PTHREAD_H - found -- Looking for include files LMMS_HAVE_SEMAPHORE_H -- Looking for include files LMMS_HAVE_SEMAPHORE_H - found -- Looking for include files LMMS_HAVE_UNISTD_H -- Looking for include files LMMS_HAVE_UNISTD_H - found -- Looking for include files LMMS_HAVE_SYS_TYPES_H -- Looking for include files LMMS_HAVE_SYS_TYPES_H - found -- Looking for include files LMMS_HAVE_SYS_IPC_H -- Looking for include files LMMS_HAVE_SYS_IPC_H - found -- Looking for include files LMMS_HAVE_SYS_SHM_H -- Looking for include files LMMS_HAVE_SYS_SHM_H - found -- Looking for include files LMMS_HAVE_SYS_TIME_H -- Looking for include files LMMS_HAVE_SYS_TIME_H - found -- Looking for include files LMMS_HAVE_SYS_WAIT_H -- Looking for include files LMMS_HAVE_SYS_WAIT_H - found -- Looking for include files LMMS_HAVE_SYS_SELECT_H -- Looking for include files LMMS_HAVE_SYS_SELECT_H - found -- Looking for include files LMMS_HAVE_STDARG_H -- Looking for include files LMMS_HAVE_STDARG_H - found -- Looking for include files LMMS_HAVE_SIGNAL_H -- Looking for include files LMMS_HAVE_SIGNAL_H - found -- Looking for include files LMMS_HAVE_SCHED_H -- Looking for include files LMMS_HAVE_SCHED_H - found -- Looking for include files LMMS_HAVE_SYS_SOUNDCARD_H -- Looking for include files LMMS_HAVE_SYS_SOUNDCARD_H - found -- Looking for include files LMMS_HAVE_SOUNDCARD_H -- Looking for include files LMMS_HAVE_SOUNDCARD_H - not found. -- Looking for include files LMMS_HAVE_FCNTL_H -- Looking for include files LMMS_HAVE_FCNTL_H - found -- Looking for include files LMMS_HAVE_SYS_IOCTL_H -- Looking for include files LMMS_HAVE_SYS_IOCTL_H - found -- Looking for include files LMMS_HAVE_CTYPE_H -- Looking for include files LMMS_HAVE_CTYPE_H - found -- Looking for include files LMMS_HAVE_STRING_H -- Looking for include files LMMS_HAVE_STRING_H - found -- Looking for include files LMMS_HAVE_PROCESS_H -- Looking for include files LMMS_HAVE_PROCESS_H - not found. -- Looking for include files LMMS_HAVE_LOCALE_H -- Looking for include files LMMS_HAVE_LOCALE_H - found -- Looking for Q_WS_X11 -- Looking for Q_WS_X11 - found -- Looking for Q_WS_WIN -- Looking for Q_WS_WIN - not found. -- Looking for Q_WS_QWS -- Looking for Q_WS_QWS - not found. -- Looking for Q_WS_MAC -- Looking for Q_WS_MAC - not found. -- Found Qt4: /usr/bin/qmake (found suitable version "4.8.1", required is "4.6.0;COMPONENTS;QtCore;QtGui;QtXml;QtNetwork") -- Found Qt translations in /usr/share/qt4/translations -- checking for module 'sndfile>=1.0.11' -- found sndfile, version 1.0.25 -- Looking for include files CMAKE_HAVE_PTHREAD_H -- Looking for include files CMAKE_HAVE_PTHREAD_H - found -- Looking for pthread_create in pthreads -- Looking for pthread_create in pthreads - not found -- Looking for pthread_create in pthread -- Looking for pthread_create in pthread - found -- Found Threads: TRUE -- Found libzip: /usr/lib/libzip.so -- Found libflac++: /usr/lib/i386-linux-gnu/libFLAC.so;/usr/lib/i386-linux-gnu/libFLAC++.so -- Found STK: /usr/lib/i386-linux-gnu/libstk.so -- checking for module 'portaudio-2.0' -- found portaudio-2.0, version 19 -- Found Portaudio: portaudio;asound;m;pthread -- checking for module 'libpulse' -- found libpulse, version 1.1 -- Found PulseAudio Simple: /usr/lib/i386-linux-gnu/libpulse.so -- Looking for vorbis_bitrate_addblock in vorbis -- Looking for vorbis_bitrate_addblock in vorbis - found -- Found OggVorbis: /usr/lib/i386-linux-gnu/libogg.so;/usr/lib/i386-linux-gnu/libvorbis.so;/usr/lib/i386-linux-gnu/libvorbisfile.so;/usr/lib/i386-linux-gnu/libvorbisenc.so -- Looking for snd_seq_create_simple_port in asound -- Looking for snd_seq_create_simple_port in asound - found -- Found ALSA: /usr/lib/i386-linux-gnu/libasound.so -- Looking for include files LMMS_HAVE_MACHINE_SOUNDCARD_H -- Looking for include files LMMS_HAVE_MACHINE_SOUNDCARD_H - not found. -- Looking for include files LMMS_HAVE_LINUX_AWE_VOICE_H -- Looking for include files LMMS_HAVE_LINUX_AWE_VOICE_H - not found. -- Looking for include files LMMS_HAVE_AWE_VOICE_H -- Looking for include files LMMS_HAVE_AWE_VOICE_H - not found. -- Looking for include files LMMS_HAVE__USR_SRC_SYS_I386_ISA_SOUND_AWE_VOICE_H -- Looking for include files LMMS_HAVE__USR_SRC_SYS_I386_ISA_SOUND_AWE_VOICE_H - not found. -- Looking for include files LMMS_HAVE__USR_SRC_SYS_GNU_I386_ISA_SOUND_AWE_VOICE_H -- Looking for include files LMMS_HAVE__USR_SRC_SYS_GNU_I386_ISA_SOUND_AWE_VOICE_H - not found. -- Looking for C++ include sys/asoundlib.h -- Looking for C++ include sys/asoundlib.h - found -- Looking for C++ include alsa/asoundlib.h -- Looking for C++ include alsa/asoundlib.h - found -- Looking for snd_pcm_resume in asound -- Looking for snd_pcm_resume in asound - found -- checking for module 'jack>=0.77' -- found jack, version 0.121.2 -- checking for module 'fftw3f>=3.0.0' -- package 'fftw3f>=3.0.0' not found CMake Error at /usr/share/cmake-2.8/Modules/FindPkgConfig.cmake:266 (message): A required package was not found Call Stack (most recent call first): /usr/share/cmake-2.8/Modules/FindPkgConfig.cmake:320 (_pkg_check_modules_internal) CMakeLists.txt:309 (PKG_CHECK_MODULES) -- checking for module 'fluidsynth>=1.0.7' -- found fluidsynth, version 1.1.5 -- Looking for include files LMMS_HAVE_LV2CORE -- Looking for include files LMMS_HAVE_LV2CORE - found -- Looking for include files LMMS_HAVE_SLV2_SCALEPOINTS_H -- Looking for include files LMMS_HAVE_SLV2_SCALEPOINTS_H - not found. -- Looking for slv2_world_new in slv2 -- Looking for slv2_world_new in slv2 - found -- Looking for librdf_new_world in rdf -- Looking for librdf_new_world in rdf - found -- Looking for wine_init in wine -- Looking for wine_init in wine - found -- Looking for C++ include windows.h -- Looking for C++ include windows.h - found -- checking for module 'samplerate>=0.1.7' -- package 'samplerate>=0.1.7' not found -- Performing Test HAVE_LRINT -- Performing Test HAVE_LRINT - Success -- Performing Test HAVE_LRINTF -- Performing Test HAVE_LRINTF - Success -- Performing Test CPU_CLIPS_POSITIVE -- Performing Test CPU_CLIPS_POSITIVE - Failed -- Performing Test CPU_CLIPS_NEGATIVE -- Performing Test CPU_CLIPS_NEGATIVE - Success -- Looking for XOpenDisplay in /usr/lib/i386-linux-gnu/libX11.so;/usr/lib/i386-linux-gnu/libXext.so -- Looking for XOpenDisplay in /usr/lib/i386-linux-gnu/libX11.so;/usr/lib/i386-linux-gnu/libXext.so - found -- Looking for gethostbyname -- Looking for gethostbyname - found -- Looking for connect -- Looking for connect - found -- Looking for remove -- Looking for remove - found -- Looking for shmat -- Looking for shmat - found -- Looking for IceConnectionNumber in ICE -- Looking for IceConnectionNumber in ICE - found -- Found X11: /usr/lib/i386-linux-gnu/libX11.so -- Found Freetype: /usr/lib/i386-linux-gnu/libfreetype.so Installation Summary -------------------- * Install Directory : /usr/local * Use system's libsamplerate : Supported audio interfaces -------------------------- * ALSA : OK * JACK : OK * OSS : OK * PortAudio : OK * PulseAudio : OK * SDL : OK Supported MIDI interfaces ------------------------- * ALSA : OK * OSS : OK * WinMM : <not supported on this platform> Supported file formats for project export ----------------------------------------- * WAVE : OK * OGG/VORBIS : OK * FLAC : OK Optional plugins ---------------- * SoundFont2 player : OK * Stk Mallets : OK * VST-instrument hoster : OK * VST-effect hoster : OK * LV2 hoster : OK * CALF LADSPA plugins : OK * CAPS LADSPA plugins : OK * CMT LADSPA plugins : OK * TAP LADSPA plugins : OK * SWH LADSPA plugins : OK * FL .zip import : OK ----------------------------------------------------------------- IMPORTANT: after installing missing packages, remove CMakeCache.txt before running cmake again! ----------------------------------------------------------------- -- Configuring incomplete, errors occurred! Here are some parts the contents of my lmms/build/CMakeCache.txt file: # This is the CMakeCache file. # For build in directory: /home/jk/Downloads/lmms-git/lmms/build # It was generated by CMake: /usr/bin/cmake # You can edit this file to change values found and used by cmake. # If you do not want to change any of the values, simply exit the editor. # If you do want to change a value, simply edit, save, and exit the editor. # The syntax for the file is as follows: # KEY:TYPE=VALUE # KEY is the name of a variable in the cache. # TYPE is a hint to GUI's for the type of VALUE, DO NOT EDIT TYPE!. # VALUE is the current value for the KEY. ######################## # EXTERNAL cache entries ######################## //Path to a file. ALSA_INCLUDES:PATH=/usr/include //Path to a library. ASOUND_LIBRARY:FILEPATH=/usr/lib/i386-linux-gnu/libasound.so //Path to a program. CMAKE_AR:FILEPATH=/usr/bin/ar //Choose the type of build, options are: None(CMAKE_CXX_FLAGS or // CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel. CMAKE_BUILD_TYPE:STRING= //Enable/Disable color output during build. CMAKE_COLOR_MAKEFILE:BOOL=ON //CXX compiler. CMAKE_CXX_COMPILER:FILEPATH=/usr/bin/c++ //Flags used by the compiler during all build types. CMAKE_CXX_FLAGS:STRING= //Flags used by the compiler during debug builds. CMAKE_CXX_FLAGS_DEBUG:STRING=-g //Flags used by the compiler during release minsize builds. CMAKE_CXX_FLAGS_MINSIZEREL:STRING=-Os -DNDEBUG //Flags used by the compiler during release builds (/MD /Ob1 /Oi // /Ot /Oy /Gs will produce slightly less optimized but smaller // files). CMAKE_CXX_FLAGS_RELEASE:STRING=-O3 -DNDEBUG //Flags used by the compiler during Release with Debug Info builds. CMAKE_CXX_FLAGS_RELWITHDEBINFO:STRING=-O2 -g //C compiler. CMAKE_C_COMPILER:FILEPATH=/usr/bin/gcc //Flags used by the compiler during all build types. CMAKE_C_FLAGS:STRING= //Flags used by the compiler during debug builds. CMAKE_C_FLAGS_DEBUG:STRING=-g //Flags used by the compiler during release minsize builds. CMAKE_C_FLAGS_MINSIZEREL:STRING=-Os -DNDEBUG //Flags used by the compiler during release builds (/MD /Ob1 /Oi // /Ot /Oy /Gs will produce slightly less optimized but smaller // files). CMAKE_C_FLAGS_RELEASE:STRING=-O3 -DNDEBUG //Flags used by the compiler during Release with Debug Info builds. CMAKE_C_FLAGS_RELWITHDEBINFO:STRING=-O2 -g //Flags used by the linker. CMAKE_EXE_LINKER_FLAGS:STRING=' ' //Flags used by the linker during debug builds. CMAKE_EXE_LINKER_FLAGS_DEBUG:STRING= //Flags used by the linker during release minsize builds. CMAKE_EXE_LINKER_FLAGS_MINSIZEREL:STRING= //Flags used by the linker during release builds. CMAKE_EXE_LINKER_FLAGS_RELEASE:STRING= //Flags used by the linker during Release with Debug Info builds. CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO:STRING= //Enable/Disable output of compile commands during generation. CMAKE_EXPORT_COMPILE_COMMANDS:BOOL=OFF //Install path prefix, prepended onto install directories. CMAKE_INSTALL_PREFIX:PATH=/usr/local //Path to a program. CMAKE_LINKER:FILEPATH=/usr/bin/ld //Path to a program. CMAKE_MAKE_PROGRAM:FILEPATH=/usr/bin/make //Flags used by the linker during the creation of modules. CMAKE_MODULE_LINKER_FLAGS:STRING=' ' //Flags used by the linker during debug builds. CMAKE_MODULE_LINKER_FLAGS_DEBUG:STRING= //Flags used by the linker during release minsize builds. CMAKE_MODULE_LINKER_FLAGS_MINSIZEREL:STRING= //Flags used by the linker during release builds. CMAKE_MODULE_LINKER_FLAGS_RELEASE:STRING= //Flags used by the linker during Release with Debug Info builds. CMAKE_MODULE_LINKER_FLAGS_RELWITHDEBINFO:STRING= ==[...]== That's a list of the contents of my lmms/build folder: [DIR]lmms/build$ dir CMakeCache.txt CPackSourceConfig.cmake lmmsconfig.h plugins CMakeFiles data lmms.rc CPackConfig.cmake include lmmsversion.h My Question: It just tells me that that "errors" occurred, but I can't see any error message. It seems like everything went fine. - So: Any idea what the problem could be? - Thanks.

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  • Error installing avogadro with CMake 'lconvert: could not exec No such file or directory'

    - by Orr22
    I'm brand new in ubuntu. I'm trying to install Avogadro. The program need the following packages, which I could install: CMake - OpenBabel 2.3.2 - Qt4 - Git - Eigen2. Here it is the recepy to install the : cd $HOME/src git clone git://github.com/cryos/avogadro.git mkdir -p $HOME/build/avogadro cd $HOME/build/avogadro cmake $HOME/src/avogadro make -j2 sudo make install It was unable to compile, but when I skipped the 'git clone' step it seemed to work just fine. After several stops during the CMake compiling process (software actualizations, get Doxygen, get flex, get bison) I was able to compile. But when I introduce the 'make -j2' command the installation stops as follows: Orr22@javi-87:~/build_avogadro$ make -j2 [ 0%] Built target elementcolor [ 0%] Built target bsdyengine [ 2%] Built target spglib [ 3%] Built target navigatetool [ 4%] Built target tubegen [ 4%] Generating libavogadro_hu.qm [ 6%] Built target OpenQube [ 6%] Generating moc_animation.cxx lconvert: could not exec '/usr/lib/i386-linux-gnu/qt5/bin/lconvert': No such file or directory make[2]: *** [libavogadro/src/libavogadro_hu.qm] Error 1 make[2]: *** Se espera a que terminen otras tareas.... make[1]: *** [libavogadro/src/CMakeFiles/avogadro.dir/all] Error 2 make: *** [all] Error 2 Any suggestions to proceed? Thanks in advance, Orr22

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  • i can't uninstall ubuntu software

    - by cunix
    root@cunix:/home/cunix# sudo apt-get remove fern-wifi-cracker Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: libqt4-test libqt4-sql-mysql mysql-common libqt4-xmlpatterns libqt4-help python-qt4 python-sip libqt4-sql-sqlite libqt4-sql macchanger libqt4-designer libmysqlclient16 python-scapy libqt4-scripttools Use 'apt-get autoremove' to remove them. The following packages will be REMOVED: fern-wifi-cracker 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. After this operation, 3,514kB disk space will be freed. Do you want to continue [Y/n]? y (Reading database ... 167661 files and directories currently installed.) Removing fern-wifi-cracker ... dpkg (subprocess): unable to execute installed pre-removal script (/var/lib/dpkg/info/fern-wifi-cracker.prerm): Exec format error dpkg: error processing fern-wifi-cracker (--remove): subprocess installed pre-removal script returned error exit status 2 Errors were encountered while processing: fern-wifi-cracker E: Sub-process /usr/bin/dpkg returned an error code (1) how to uninstall?

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  • How to recover broken dpkg after lucid-bleed ppa-purge?

    - by TryTryAgain
    Did a ppa-purge of lucid-bleed and dpkg didn't downgrade properly and now it is broken. dpkg: PreDepends: tar (>= 1.23) but 1.22-2ubuntu1 is to be installed What scares me is when simulating the removal of dpkg I get: Removing this package may render the system unusable. Are you sure you want to do that? and then the list of packages which depend on it, which will also be removed, is obviously very long. Is it safe for me to remove dpkg just to reinstall it? How would I ensure the list of packages which were also removed are then reinstalled? Will forcing the version of dpkg help? (FYI: simulating a forced version brings up a much smaller list of applications which will also be removed). Any other suggestions? Additional information based on comments: ppa-purge log: http://pastebin.com/1kT8cLvP If I sudo apt-get install dpkg=1.15.5.6ubuntu4.5 I get The following packages have unmet dependencies: libdpkg-perl: Depends: dpkg (= 1.15.8) but 1.15.5.6ubuntu4.5 is to be installed which sucks because that means more would be broken after doing so...but when I force the version through Synaptic I get: To be removed alien, build-essential, cdbs, checkinstall, debhelper, devscripts, dpkg-dev, google-earth-stable, googleearth-package, libdpkg-perl, lintian, lsb, lsb-core, lsb-cxx, lsb-desktop, lsb-graphics, lsb-languages, lsb-multimedia, lsb-printing, lsb-qt4, lsb-security, ubuntu-dev-tools.

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  • How do I install Kodos in 12.10?

    - by Brutus
    In previous Ubuntu version I used Kodos extensively. But the package has been dropped in 12.10. It's a neat regular expression testing tool. It's hard to find an alternative that is not Windows only (or Air, or uses action script which bails on more complicated RegEx, or works in Wine - well kinda, but not really..., etc.). So I tried to install Kodos from source, which seems to work (download sourceball and setup.py) but it won't run because of missing PyQT dependencies (that I can't manage to fulfill with anything install-able trough standard packages). I then tried to install PyQT manually (which seems to require manual install of SIP and QT too) and instead of pip I have to use configure.py and qmake. It throws error after error at me. I tried to overcome one after another for over an hour but no luck. It even managed to break Calibre and Music Brains Picard. So I purged all the stuff, reinstalled python-sipand python-qt4 from the standard packages and gave up. Has anyone managed to get Kodos running on 12.10? Or any hints on how to do it?

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  • RubyQt Crashing on QTableWidget

    - by gja
    I'm getting some weirdness with QtRuby when using a TableWidget. The table widget loads, but when you click on the elements in the row, the app segfaults and crashes. require 'Qt4' class SimpleModel < Qt::AbstractTableModel def rowCount(parent) return 1 end def columnCount(parent) return 1 end def data(index, role=Qt::DisplayRole) return Qt::Variant.new("Really Long String") if index.row == 0 and index.column == 0 and role == Qt::DisplayRole return Qt::Variant.new end end Qt::Application.new(ARGV) do Qt::TableWidget.new(1, 1) do set_model SimpleModel.new show end exec end The backtrace seems to imply that it is bombing in mousePressEvent #6 0x01624643 in QAbstractItemView::pressed(QModelIndex const&) () from /usr/lib/libQtGui.so.4 #7 0x016306f5 in QAbstractItemView::mousePressEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4 If I override mousePressEvent and mouseMoveEvent, these kinds of crashes no longer happen. Am I doing something wrong over here, or can I chalk this up as a bug in QtRuby? I'm on fedora11, with the following packages installed: QtRuby-4.4.0-1.fc11.i586 ruby-1.8.6.369-1.fc11.i586 These crashes also happen when running the script on Windows.

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  • Calling activateWindow on QDialog sends window to background

    - by Stan
    I am debugging certain application written with C++/Qt4. On Linux it has problems that with certain window managers (gnome-wm/metacity), the main window (based on QDialog) is created in the background (it's not raised). I managed to re-create the scenario using PyQt4 and following code: from PyQt4.QtCore import * from PyQt4.QtGui import * import sys class PinDialog(QDialog): def showEvent(self, event): QDialog.showEvent(self, event) self.raise_() self.activateWindow() if __name__ == "__main__": app = QApplication(sys.argv) widget = PinDialog() app.setActiveWindow(widget) widget.exec_() sys.exit(0) If I remove self.activateWindow() the application works as expected. This seems wrong, since documentation for activateWindow does not specify any conditions under which something like this could happen. My question is: Is there any reason to have activateWindow in showEvent in the first place? If there is some reason, what would be good workaround for focusing issues?

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  • how do i make my own P2P software ?

    - by wefwgeweg
    how can i make my own napster ? which library are these p2p programs using ? i am not too familiar with the concept of socket programming. could you make p2p program using Qt4 ? i've been wondering about this question since the Napster days. how would you also go about creating the next "bitorrent" ? is this by using similar socket libraries ? what's the latest in p2p technology ? are there any news sites? what's the future hold for p2p ?

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  • What is the easiest way to reference libraries in Qt projects?

    - by Jake Petroules
    I have two Qt4 Gui Application projects and one shared library project, all referenced under a .pro file with the "subdirs" template. So, it's like: exampleapp.pro app1.pro app2.pro sharedlib.pro Now, what I want to do is reference sharedlib from app1 and app2 so that every time I run app1.exe, I don't have to manually copy sharedlib.dll from its own folder to app1.exe's folder. I could set PATH environment variable in the projects window, but this isn't very portable. I've looked at putting the LIBS variable in the app1.pro file, but I'm not sure if that refers to statically linked libraries only - I've tried it with various syntaxes and it doesn't seem to work with shared libs.

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  • C++ library for Coordinate Transformation Matrices (CTM)?

    - by BastiBense
    I'm looking for a C++ library which allows for easy integration of Coordinate Transformation Matrices (CTM) in my application. You might know CTMs from PDF or PostScript. For one project we are using C++/Qt4 as a framework, which offers a QTransform class, which provides methods like .translate(double x, double y) or .rotate(double degrees). After doing some transformations, it would allow me to get all 6 CTM values, which I could feed into a PDF library or use a transformation matrix in export files. Qt's API also allows for arbitrary mapping of polygons (QPolygon), rectangles (QRect) and other primitive data structures into transformed coordinate systems. So basically I'm looking for something similar to what Qt provides, but without the need of using Qt. I know I could do the matrix multiplications myself, but I'm not really interested in doing so, as I'm very sure that someone already solved this problem, so please no links to books or other guides on how to multiply matrices. Thanks!

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  • some verd problems in qt

    - by prabhakaran
    I am very new to qt, So whatever I facing is either errors or problems. Here goes some of them, 1)Just try to install it in VisualStudio, you will got enough for the day. 2)After you installed it as a separate qt(without embedding it inside visual studio).Open a c++ file in qt, = then you won't get any option to compile it. 3)Create a empty qt4 project like below #include<iostream> using namespace std; int main(int a,char * argv[]) { } Then build it, you will get a error like this C:\qt-greenhouse\Trolltech\Code_less_create_more\Trolltech\Code_less_create_more\Troll\4.6\qt\src\winmain/qtmain_win.cpp:131: undefined reference to `qMain(int, char**)' Can anybody clear any of these problems to me.

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  • Qt on Mac: where to find "configure"

    - by Gil
    hi, I am very new to Mac. I downloaded QT SDK Mac Open source (http://get.qt.nokia.com/qtsdk/qt-sdk-mac-opensource-2010.02.dmg) and installed the Package. I can run qmake, build samples and run demos, but I cannot run configure (in order to build the Qt libraries statically). It says: -bash: No such file or directory. Documentation says I should run this in the "Qt root folder", but what is this folder in Mac? I looked for it in /usr/bin, /usr/local/Qt4.6, /Developer/Tools/Qt. Anyway, what is "configure" on Mac. is it an executable or a script? Thanks a lot

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  • qmake translations doesn't seem to work

    - by gordebak
    I have a Qt app with a Czech translation. I can get my translation compiled and installed fine with the following code. But when I run the app, translation doesn't work. What am I missing? I even tried to chmod 644 to change the permissions of the translation file, but it didn't work either. Thanks in advance. TRANSLATIONS += cs_CZ.ts isEmpty(QMAKE_LRELEASE) { win32|os2:QMAKE_LRELEASE = $$[QT_INSTALL_BINS]\lrelease.exe else:QMAKE_LRELEASE = $$[QT_INSTALL_BINS]/lrelease unix { !exists($$QMAKE_LRELEASE) { QMAKE_LRELEASE = lrelease-qt4 } } else { !exists($$QMAKE_LRELEASE) { QMAKE_LRELEASE = lrelease } } } updateqm.input = TRANSLATIONS updateqm.output = qm/${QMAKE_FILE_BASE}.qm updateqm.commands = $$QMAKE_LRELEASE -silent ${QMAKE_FILE_IN} -q qm/${QMAKE_FILE_BASE}.qm updateqm.CONFIG += no_link target_predeps QMAKE_EXTRA_COMPILERS += updateqm INSTALLS += translations translations.path = /usr/share/app translations.files = qm/cs_CZ.qm

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  • matplotlib 3D plot with PyQt4 in Qtabwidget (mplwidget)

    - by artdijk
    I am working on my first Python app using PythonXY (2.6 and Qt4). I have a window with some buttons and a QtabWidget. When I press a button I want to plot a 3D image on a specific tab. I managed to get a 2D plot but I can't get the axes to 3D. Via Qt desiger I use the mplwidget. In many examples I see the use of figure(), but I can't get that to work with the mplwidget. (I am not sure if that is even possible) Can you please show me an example of code defining the 3D axes (in a QtabWidget) with a simple plot ? Thanks very much

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  • will destroyed() be emitted if the constructor of a class derived from QObject throws?

    - by PorkyBrain
    Ive seen Qt GUI syntax like the following all over the place: myDialog::myDialog(QWidget *parent, Qt::WFlags flags):QDialog(parent, flags) { QPushButton *button = new QPushButton("&Download", this); QVBoxLayout *layout = new QVBoxLayout(this); //something that can throw here layout ->addWidget(button ); setLayout(layout); } I've always wondered if this can leak in the event of an exception because the "this" I'm giving as a parent to button and layout is not fully constructed so it might not destroy its children. I tried it out in MSVC2010 Qt4.8.3 and it looks like as soon as the base QObject class is fully created (which is done first of course) it is ok to pass "this" to other objects in the constructor, they will destroyed correctly. I haven't found the spot in the Qt docs guaranteeing this though, can someone point me to it so I have assurance that this will not change in the future?

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  • Best way to remote restart Ubuntu from Windows machine

    - by robsoft
    Background: I'm looking to put a series of Ubuntu machines into retail locations, they're being used as dumb kiosks to show a series of slides onto large LCD panel TV screens. Once installed, they won't have a keyboard or mouse connected but will have a fixed IP on the local network. Everything is configured to auto-start, no automatic updates, no power saving etc - I think we're pretty-much good to go apart from one thing. I need the retail staff to be able to restart the boxes if a problem arises. We have VNC running (now that we've turned off desktop enhancements!) so that we can remotely get into the machines if we need to, but that's not something we would allow the retail staff to do. The machines are going to be physically 'out of the way' (probably in the ceiling space) so the power button is not easily accessible!. I'd like to have some means of allowing the retail staff to restart the Ubuntu machine, from the desktop of one of their Windows terminals. I don't really want to give them some kind of raw terminal access (the command line will frighten them!) and I don't want them to use VNC (as stated above). Ideally there would be an icon on the Windows desktop, they double-click it, reply to a simple 'are you sure?' prompt, and then the Ubuntu box is told to restart. The Windows side of that won't be a problem, we can write something using Delphi, Python & Qt4, whatever - it's the Ubuntu side of it I'm stuck with. Out of sight/view, could I have a Windows program open a terminal across the network and tell Ubuntu to restart? Is this what SSH could be used for (I have never set that kind of thing up). The Windows programming side isn't really an issue, it's just that I'm a total Ubuntu noob and don't know where to start from the platform point of view. The other thing we considered is also having the machine automatically restart itself at a set time each day (obviously out of store hours!). To me, that seems a bit unnecessary (though forcing a restart once a week/month might be worthwhile). Any thoughts or suggestions? Being able to restart the box on demand across the network is my prime requirement.

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  • Cannot build digiKam

    - by Tichomir Mitkov
    I'm trying to compile digiKam 2.8.0. I have installed the required libraries but cMake seems to stuck without any meaningful reason. Here is the output of cMake: $ cmake -DCMAKE_BUILD_TYPE=relwithdebinfo -DCMAKE_INSTALL_PREFIX=/usr/local . -- Found Qt-Version 4.7.1 (using /usr/bin/qmake) -- Found X11: /usr/lib64/libX11.so -- Found KDE 4.6 include dir: /usr/include -- Found KDE 4.6 library dir: /usr/lib64 -- Found the KDE4 kconfig_compiler preprocessor: /usr/bin/kconfig_compiler -- Found automoc4: /usr/bin/automoc4 -- Local kdegraphics libraries will be compiled... YES -- Handbooks will be compiled..................... YES -- Extract translations files..................... NO -- Translations will be compiled.................. YES -- ---------------------------------------------------------------------------------- -- Starting CMake configuration for: libmediawiki ----------------------------------------------------------------------------- -- The following external packages were located on your system. -- This installation will have the extra features provided by these packages. ----------------------------------------------------------------------------- * QJSON - Qt library for handling JSON data ----------------------------------------------------------------------------- -- Congratulations! All external packages have been found. ----------------------------------------------------------------------------- -- ---------------------------------------------------------------------------------- -- Starting CMake configuration for: libkgeomap -- Found Qt-Version 4.7.1 (using /usr/bin/qmake) -- Found X11: /usr/lib64/libX11.so -- Check Kexiv2 library in local sub-folder... -- Found Kexiv2 library in local sub-folder: /home/tichomir/Downloads/digikam-2.8.0/extra/libkexiv2 -- kexiv2 found, the demo application will be compiled. -- ---------------------------------------------------------------------------------- -- Starting CMake configuration for: libkface -- Found Qt-Version 4.7.1 (using /usr/bin/qmake) -- Found X11: /usr/lib64/libX11.so -- First try at finding OpenCV... -- Great, found OpenCV on the first try. -- OpenCV Root directory is /usr/share/opencv -- External libface was not found, use internal version instead... -- ---------------------------------------------------------------------------------- -- Starting CMake configuration for: kipi-plugins -- Check Kexiv2 library in local sub-folder... -- Found Kexiv2 library in local sub-folder: /home/tichomir/Downloads/digikam-2.8.0/extra/libkexiv2 -- Check for Kdcraw library in local sub-folder... -- Found Kdcraw library in local sub-folder: /home/tichomir/Downloads/digikam-2.8.0/extra/libkdcraw CMake Error at extra/libkdcraw/cmake/modules/FindKdcraw.cmake:137 (file): file Internal CMake error when trying to open file: /home/tichomir/Downloads/digikam-2.8.0/extra/libkdcraw/libkdcraw/version.h for reading. Call Stack (most recent call first): extra/kipi-plugins/CMakeLists.txt:123 (FIND_PACKAGE) -- Check Kipi library in local sub-folder... -- Found Kipi library in local sub-folder: /home/tichomir/Downloads/digikam-2.8.0/extra/libkipi CMake Warning at extra/kipi-plugins/CMakeLists.txt:139 (MESSAGE): libkdcraw: Version information not found, your version is probably too old. -- Found GObject libraries: /usr/lib64/libgobject-2.0.so;/usr/lib64/libgmodule-2.0.so;/usr/lib64/libgthread-2.0.so;/usr/lib64/libglib-2.0.so -- Found GObject includes : /usr/include/glib-2.0/gobject -- Check for Ksane library in local sub-folder... -- Found Ksane library in local sub-folder: /home/tichomir/Downloads/digikam-2.8.0/extra/libksane -- Check for KGeoMap library in local sub-folder... -- Found KGeoMap library in local sub-folder: /home/tichomir/Downloads/digikam-2.8.0/extra/libkgeomap -- Check Mediawiki library in local sub-folder... -- Found Mediawiki library in local sub-folder: /home/tichomir/Downloads/digikam-2.8.0/extra/libmediawiki -- Check Vkontakte library in local sub-folder... -- Found Vkontakte library in local sub-folder: /home/tichomir/Downloads/digikam-2.8.0/extra/libkvkontakte -- Boost version: 1.38.0 -- libkgeomap: Found version 2.0.0 -- Found X11: /usr/lib64/libX11.so -- CMake version: cmake version 2.8.9 -- CMake version (cleaned): cmake version 2.8.9 -- -- ---------------------------------------------------------------------------------- -- kipi-plugins 2.8.0 dependencies results <http://www.digikam.org> -- -- libjpeg library found.................... YES -- libtiff library found.................... YES -- libpng library found..................... YES -- libkipi library found.................... YES -- libkexiv2 library found.................. YES -- libkdcraw library found.................. YES -- libxml2 library found.................... YES (optional) -- libxslt library found.................... YES (optional) -- libexpat library found................... YES (optional) -- native threads support library found..... YES (optional) -- libopengl library found.................. YES (optional) -- Qt4 OpenGL module found.................. YES -- libopencv library found.................. YES (optional) -- QJson library found...................... YES (optional) -- libgpod library found.................... YES (optional) -- Gdk library found........................ YES (optional) -- libkdepim library found.................. YES (optional) -- qca2 library found....................... YES (optional) -- libkgeomap library found................. YES (optional) -- libmediawiki library found............... YES (optional) -- libkvkontakte library found.............. YES (optional) -- boost library found...................... YES (optional) -- OpenMP library found..................... YES (optional) -- libX11 library found..................... YES (optional) -- libksane library found................... YES (optional) -- -- kipi-plugins will be compiled............ YES -- Shwup will be compiled................... YES (optional) -- YandexFotki will be compiled............. YES (optional) -- HtmlExport will be compiled.............. YES (optional) -- AdvancedSlideshow will be compiled....... YES (optional) -- ImageViewer will be compiled............. YES (optional) -- AcquireImages will be compiled........... YES (optional) -- DNGConverter will be compiled............ YES (optional) -- RemoveRedEyes will be compiled........... YES (optional) -- Debian Screenshots will be compiled...... YES (optional) -- Facebook will be compiled................ YES (optional) -- Imgur will be compiled................... YES (optional) -- VKontakte will be compiled............... YES (optional) -- IpodExport will be compiled.............. YES (optional) -- Calendar will be compiled................ YES (optional) -- GPSSync will be compiled................. YES (optional) -- Mediawiki will be compiled............... YES (optional) -- Panorama will be compiled................ YES (optional) -- ---------------------------------------------------------------------------------- -- -- ---------------------------------------------------------------------------------- -- Starting CMake configuration for: digiKam -- Check for Kdcraw library in local sub-folder... -- Found Kdcraw library in local sub-folder: /home/tichomir/Downloads/digikam-2.8.0/extra/libkdcraw CMake Error at extra/libkdcraw/cmake/modules/FindKdcraw.cmake:137 (file): file Internal CMake error when trying to open file: /home/tichomir/Downloads/digikam-2.8.0/extra/libkdcraw/libkdcraw/version.h for reading. Call Stack (most recent call first): core/CMakeLists.txt:156 (FIND_PACKAGE) -- Check Kexiv2 library in local sub-folder... -- Found Kexiv2 library in local sub-folder: /home/tichomir/Downloads/digikam-2.8.0/extra/libkexiv2 -- Check Kipi library in local sub-folder... -- Found Kipi library in local sub-folder: /home/tichomir/Downloads/digikam-2.8.0/extra/libkipi -- Check Kface library in local sub-folder... -- Found Kface library in local sub-folder: /home/tichomir/Downloads/digikam-2.8.0/extra/libkface -- Check for KGeoMap library in local sub-folder... -- Found KGeoMap library in local sub-folder: /home/tichomir/Downloads/digikam-2.8.0/extra/libkgeomap -- PGF_INCLUDE_DIRS = /usr/local/include/libpgf -- PGF_INCLUDEDIR = /usr/local/include/libpgf -- PGF_LIBRARIES = pgf -- PGF_LDFLAGS = -L/usr/local/lib;-lpgf -- PGF_CFLAGS = -I/usr/local/include/libpgf -- PGF_VERSION = 6.12.24 -- PGF_CODEC_VERSION_ID = 61224 -- Could NOT find any working clapack installation -- Boost version: 1.38.0 -- Check for LCMS1 availability... -- Found LCMS1: /usr/lib64/liblcms.so /usr/include -- Paralelized PGF codec disabled... -- Identified libjpeg version: 62 -- Found MySQL server executable at: /usr/sbin/mysqld -- Found MySQL install_db executable at: /usr/bin/mysql_install_db CMake Warning at core/CMakeLists.txt:310 (MESSAGE): libkdcraw: Version information not found, your version is probably too old. -- libkgeomap: Found version 2.0.0 -- Found gphoto2: -L/usr/lib64 -lgphoto2_port;-L/usr/lib64 -lgphoto2 -lgphoto2_port -lm -- WARNING: you are using the obsolete 'PKGCONFIG' macro, use FindPkgConfig -- WARNING: you are using the obsolete 'PKGCONFIG' macro, use FindPkgConfig -- PKGCONFIG() indicates that lqr-1 is not installed (install the package which contains lqr-1.pc if you want to support this feature) -- Could NOT find Lqr-1 (missing: LQR-1_INCLUDE_DIRS LQR-1_LIBRARIES) -- Found SharedDesktopOntologies: /usr/share/ontology -- Found SharedDesktopOntologies: /usr/share/ontology (found version "0.5.0", required is "0.2") -- -- ---------------------------------------------------------------------------------- -- digiKam 2.8.0 dependencies results <http://www.digikam.org> -- -- Qt4 SQL module found..................... YES -- MySQL Server found....................... YES -- MySQL install_db tool found.............. YES -- libtiff library found.................... YES -- libpng library found..................... YES -- libjasper library found.................. YES -- liblcms library found.................... YES -- Boost Graph library found................ YES -- libkipi library found.................... YES -- libkexiv2 library found.................. YES -- libkdcraw library found.................. YES -- libkface library found................... YES -- libkgeomap library found................. YES -- libpgf library found..................... YES (optional) -- libclapack library found................. NO (optional - internal version used instead) -- libgphoto2 and libusb libraries found.... YES (optional) -- libkdepimlibs library found.............. YES (optional) -- Nepomuk libraries found.................. YES (optional) -- libglib2 library found................... YES (optional) -- liblqr-1 library found................... NO (optional - internal version used instead) -- liblensfun library found................. YES (optional) -- Doxygen found............................ YES (optional) -- digiKam can be compiled.................. YES -- ---------------------------------------------------------------------------------- -- -- Adjusting compilation flags for GCC version ( 4.5.1 ) -- Configuring incomplete, errors occurred! Actually this line shows a sign of error CMake Error at extra/libkdcraw/cmake/modules/FindKdcraw.cmake:137 (file): file Internal CMake error when trying to open file: /home/tichomir/Downloads/digikam-2.8.0/extra/libkdcraw/libkdcraw/version.h for reading. 'version.h' doesn't exists instead there is a file 'version.h.cmake' I have installed libkdcraw (64-bit) from sources. I'm using OpenSuse

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  • Static linking in Qt --> link errors in VS 2008

    - by ChruS
    Today I dediced to make static linking in Qt. I used Qt4 with Visual Studio and static C runtime article. The 3rd step took quite a long time. When it was finished I opened my project in VS 2008, made Build->Clean Solution and try to Release. Unfortunately I got link errors: warning LNK4098: defaultlib 'libcmt.lib' conflicts with use of other libs; use /NODEFAULTLIB:library error LNK2019: unresolved external symbol "private: static struct QString::Data QString::shared_null" (?shared_null@QString@@0UData@1@A) referenced in function "public: __thiscall QString::QString(void)" (??0QString@@QAE@XZ) error LNK2019: unresolved external symbol "private: static struct QByteArray::Data QByteArray::shared_null" (?shared_null@QByteArray@@0UData@1@A) referenced in function "public: __thiscall QByteArray::QByteArray(void)" (??0QByteArray@@QAE@XZ) error LNK2001: unresolved external symbol "private: static struct QByteArray::Data QByteArray::shared_null" (?shared_null@QByteArray@@0UData@1@A) error LNK2001: unresolved external symbol "public: static struct QMetaObject const QDialog::staticMetaObject" (?staticMetaObject@QDialog@@2UQMetaObject@@B) error LNK2001: unresolved external symbol "public: static struct QMetaObject const QDialog::staticMetaObject" (?staticMetaObject@QDialog@@2UQMetaObject@@B) error LNK2001: unresolved external symbol "public: static struct QMetaObject const QDialog::staticMetaObject" (?staticMetaObject@QDialog@@2UQMetaObject@@B) error LNK2019: unresolved external symbol "public: static enum QSysInfo::WinVersion const QSysInfo::WindowsVersion" (?WindowsVersion@QSysInfo@@2W4WinVersion@1@B) referenced in function _WinMain@16 What i did wrong? Help to fix this pls.

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