Hi.
I've installed with ocs but I can't see the applet if I try to add it to the panel. I've selected add graphic element to panel but QCalculate not seems available. How I can add to panel (Task manager or whatever named is)? Thanks

Sorry, I have never heard of ocs before. Looks like this is currently not supported. A list of supported ways to install is listed here: https://github.com/dschopf/plasma-applet-qalculate/blob/master/README.md

I'll see that but ocs-url is offer to install this add-ons on this page right now: "
*Needs ocs-url or ocs-store to install things"

Unfortunately there is no way to disable this feature for individual packages. It will work for script addons, but Qalculate! needs to compile native libraries, which is not supported. Sorry for the trouble. Which distribution are you using?

10 10 the best

hi,
can you put a link in the ui to get quickly acces to the GTK-UI. ?
e.g. clik on the picture logo will launch the app!
regards

I'm not sure I fully understand your request. Do you want a button on your task bar which launches the app or do you want a button (or any other clickable object) inside the widget?

a button (or any other clickable object) inside the widget !
sorry for my english...

I added support for launching an application from the logo in the github repo: https://github.com/dschopf/qalculate
Can you check if this meets your requirements?

great! thank you dschop.

The plasmoid doesn't give me results, only "Error" as result. I don't have errors in the compilation and qalculate-gtk works fine. I search it, but I can't find anything. Could you give any tip?

It's difficult to guess what the problem might be. Are there any errors when installing the plugin?
Maybe you could open an issue on Github with some more details like which distribution, compiler and KDE version you are using.

9 +

Forgot to add: using libqalculate-2.2.0

Nevermind. My fault. Forgot to read the bit where you said that libqalculate 2.5 or higher is required. Thanks!!

That part about the requirement of libqalculate v2.5 only refers to the new feature of using the two's complement representation for negative numbers. Apart from that the latest version should hopefully work with all (recent) versions of libqalculate (including v2.2).

The error message you receive looks like an ABI incompatibility between libqalculate and the plugin.
If possible please open a bug report on the Github page, which is much better suited to discuss such issues.

Cannot build 0.5. The problem appears to be a linking issue:

[100%] Linking CXX shared library libplasmoidplugin.so
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::updateExchangeRates()':
qwrapper.cpp:(.text+0x4af): undefined reference to `Calculator::getExchangeRatesUrl[abi:cxx11](int)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::printResultInBase(MathStructure&, std::pair&)':
qwrapper.cpp:(.text+0x1720): undefined reference to `Calculator::print[abi:cxx11](MathStructure const&, int, PrintOptions const&)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::runCalculation(std::__cxx11::basic_string, std::allocator > const&)':
qwrapper.cpp:(.text+0x1a6a): undefined reference to `Calculator::calculate(MathStructure*, std::__cxx11::basic_string, std::allocator >, int, EvaluationOptions const&, MathStructure*, MathStructure*, bool)'
qwrapper.cpp:(.text+0x1ab8): undefined reference to `Calculator::print[abi:cxx11](MathStructure const&, int, PrintOptions const&)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::worker()':
qwrapper.cpp:(.text+0x23b0): undefined reference to `Calculator::unlocalizeExpression(std::__cxx11::basic_string, std::allocator >, ParseOptions const&) const'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::QWrapper(QObject*)':
qwrapper.cpp:(.text+0x2b66): undefined reference to `Number::set(std::__cxx11::basic_string, std::allocator >, ParseOptions const&)'
qwrapper.cpp:(.text+0x2c5c): undefined reference to `Number::set(std::__cxx11::basic_string, std::allocator >, ParseOptions const&)'
qwrapper.cpp:(.text+0x2d4b): undefined reference to `Number::set(std::__cxx11::basic_string, std::allocator >, ParseOptions const&)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::fileDownloaded(QNetworkReply*)':
qwrapper.cpp:(.text+0x3373): undefined reference to `Calculator::getExchangeRatesFileName[abi:cxx11](int)'
collect2: error: ld returned 1 exit status
make[2]: *** [plugin/CMakeFiles/plasmoidplugin.dir/build.make:115: plugin/libplasmoidplugin.so] Error 1
make[1]: *** [CMakeFiles/Makefile2:188: plugin/CMakeFiles/plasmoidplugin.dir/all] Error 2
make: *** [Makefile:141: all] Error 2

Distribution: Slackware64-current
Qt: 5.9.5
Plasma: 5.12.5
Frameworks: 5.46.0
gcc: 7.3

Thanks!

If i try to compile v0.3.1 with libqalculate 2.0.0 I got:

machine:~/setups/pkg/qalculate-0.3.1/build$ make

[ 16%] Built target org.kde.plasma.qalculate-metadata-json
[ 33%] Automatic moc for target plasmoidplugin
[ 33%] Built target plasmoidplugin_automoc
[ 50%] Linking CXX shared library libplasmoidplugin.so
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::setDecimalSeparator(QString const&)':
qwrapper.cpp:(.text+0x707): undefined reference to `Calculator::useDecimalPoint(bool)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::getExchangeRatesUpdateTime()':
qwrapper.cpp:(.text+0xa9e): undefined reference to `Calculator::getExchangeRatesTime()'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::evaluate(QString const&, bool)':
qwrapper.cpp:(.text+0xee5): undefined reference to `Calculator::abortPrint()'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::worker()':
qwrapper.cpp:(.text+0x142b): undefined reference to `MathStructure::isAborted() const'
qwrapper.cpp:(.text+0x1669): undefined reference to `Calculator::startPrintControl(int)'
qwrapper.cpp:(.text+0x170e): undefined reference to `Calculator::printingAborted()'
qwrapper.cpp:(.text+0x1723): undefined reference to `Calculator::stopPrintControl()'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::QWrapper(QObject*)':
qwrapper.cpp:(.text+0x1cf5): undefined reference to `Calculator::useDecimalPoint(bool)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::fileDownloaded(QNetworkReply*)':
qwrapper.cpp:(.text+0x23aa): undefined reference to `Calculator::getExchangeRatesTime()'
collect2: error: ld returned 1 exit status
plugin/CMakeFiles/plasmoidplugin.dir/build.make:147: recipe for target 'plugin/libplasmoidplugin.so' failed
make[2]: *** [plugin/libplasmoidplugin.so] Error 1
CMakeFiles/Makefile2:155: recipe for target 'plugin/CMakeFiles/plasmoidplugin.dir/all' failed
make[1]: *** [plugin/CMakeFiles/plasmoidplugin.dir/all] Error 2
Makefile:138: recipe for target 'all' failed
make: *** [all] Error 2

Similar error when try with v0.4.0 libqalculate-2.4.0


Could you give any tip or so?
Thanks!

This looks like a version conflict. When you use libqalculate 2.0.0 it should not try to link stopPrintControl().
How did you install the libqalculate? Manually or with a package manager? What does the output of the cmake command say.
It should say something like this:
-- Checking for module 'libqalculate>=0.9.8'
-- Found libqalculate, version 2.4.0

finally "make install"

~/setups/pkg/qalculate-0.4.0/build$ su -c "make install"
Password:
[ 16%] Built target org.kde.plasma.qalculate-metadata-json
[ 33%] Automatic moc for target plasmoidplugin
[ 33%] Built target plasmoidplugin_automoc
[ 50%] Linking CXX shared library libplasmoidplugin.so
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::updateExchangeRates()':
qwrapper.cpp:(.text+0x4af): undefined reference to `Calculator::getExchangeRatesUrl[abi:cxx11](int)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::getExchangeRatesUpdateTime()':
qwrapper.cpp:(.text+0x60e): undefined reference to `Calculator::getExchangeRatesTime()'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::checkReturnState()':
qwrapper.cpp:(.text+0x80c): undefined reference to `Calculator::aborted()'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::printResultInBase(int, MathStructure&, QString&)':
qwrapper.cpp:(.text+0xc73): undefined reference to `Calculator::print[abi:cxx11](MathStructure const&, int, PrintOptions const&)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::runCalculation(std::__cxx11::basic_string, std::allocator > const&)':
qwrapper.cpp:(.text+0x145c): undefined reference to `Calculator::print[abi:cxx11](MathStructure const&, int, PrintOptions const&)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::worker()':
qwrapper.cpp:(.text+0x2087): undefined reference to `Calculator::startControl(int)'
qwrapper.cpp:(.text+0x209b): undefined reference to `Calculator::stopControl()'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::QWrapper(QObject*)':
qwrapper.cpp:(.text+0x25c8): undefined reference to `Calculator::useDecimalPoint(bool)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::fileDownloaded(QNetworkReply*)':
qwrapper.cpp:(.text+0x2b6b): undefined reference to `Calculator::getExchangeRatesFileName[abi:cxx11](int)'
qwrapper.cpp:(.text+0x2ce2): undefined reference to `Calculator::getExchangeRatesTime()'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::setDecimalSeparator(QString const&)':
qwrapper.cpp:(.text+0x261): undefined reference to `Calculator::useDecimalPoint(bool)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `_GLOBAL__sub_I_qwrapper.cpp':
qwrapper.cpp:(.text.startup+0x37b): undefined reference to `Number::Number(long, long, long)'
collect2: error: ld returned 1 exit status
plugin/CMakeFiles/plasmoidplugin.dir/build.make:147: recipe for target 'plugin/libplasmoidplugin.so' failed
make[2]: *** [plugin/libplasmoidplugin.so] Error 1
CMakeFiles/Makefile2:155: recipe for target 'plugin/CMakeFiles/plasmoidplugin.dir/all' failed
make[1]: *** [plugin/CMakeFiles/plasmoidplugin.dir/all] Error 2
Makefile:138: recipe for target 'all' failed
make: *** [all] Error 2


Not significative output differences compiling with any of 2.0.0 or 2.4.0 versions of libqalculate for 'make' and 'make install' commands. { references like (.text+0x2c6a) and percent compiling advances as sole differs. ]

Seems opendesktop.org web app

limits msg size...

There was no bugs in your code. I successfully could built qalculate after some cleaning in my own library instlltion. Thank you for you suport!

I built it all from source repositories
I tried qalculate-0.4.0 that time
Compiling any of both 2.0.0 or 2.4.0 libqalculate run smoothly with

./autogen.sh (if needed)
./configure
make
make install (as root)

cmake::

~/setups/pkg/qalculate-0.4.0/build$ cmake .. -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release -DKDE_INSTALL_LIBDIR=lib -DKDE_INSTALL_USE_QT_SYS_PATHS=ON
-- The C compiler identification is GNU 6.3.0
-- The CXX compiler identification is GNU 6.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - 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
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Looking for __GLIBC__
-- Looking for __GLIBC__ - found
-- Performing Test _OFFT_IS_64BIT
-- Performing Test _OFFT_IS_64BIT - Success
-- Found PkgConfig: /usr/bin/pkg-config (found version "0.29")
-- Found Readline: /usr/include
-- Checking for module 'libqalculate>=0.9.8'
-- Found libqalculate, version 2.0.0 <============ or 2.4.0 instead
-- Configuring done
-- Generating done
-- Build files have been written to: /_path_/setups/pkg/qalculate-0.4.0/build
continu

then make::

~/setups/pkg/qalculate-0.4.0/build$ make
Scanning dependencies of target org.kde.plasma.qalculate-metadata-json
[ 16%] Generating org.kde.plasma.qalculate-metadata.json
Unknown property type for key "X-KDE-ParentApp" -> falling back to string
Unknown property type for key "X-Plasma-API" -> falling back to string
Unknown property type for key "X-Plasma-MainScript" -> falling back to string
Unknown property type for key "X-Plasma-RemoteLocation" -> falling back to string
Generated "/_path_/setups/pkg/qalculate-0.4.0/build/org.kde.plasma.qalculate-metadata.json"

[ 16%] Built target org.kde.plasma.qalculate-metadata-json
Scanning dependencies of target plasmoidplugin_automoc
[ 33%] Automatic moc for target plasmoidplugin
Generating moc source plasmoidplugin_automoc.dir/moc_plasmoidplugin_DZ66HZV5Z3E2K4.cpp
Generating moc source plasmoidplugin_automoc.dir/moc_qwrapper_S2JPYLPKINLUVR.cpp
Generating moc compilation plasmoidplugin_automoc.cpp
[ 33%] Built target plasmoidplugin_automoc
Scanning dependencies of target plasmoidplugin
[ 50%] Building CXX object plugin/CMakeFiles/plasmoidplugin.dir/plasmoidplugin.cpp.o
[ 66%] Building CXX object plugin/CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o
[ 83%] Building CXX object plugin/CMakeFiles/plasmoidplugin.dir/plasmoidplugin_automoc.cpp.o
[100%] Linking CXX shared library libplasmoidplugin.so
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::getExchangeRatesUpdateTime()':
qwrapper.cpp:(.text+0x60e): undefined reference to `Calculator::getExchangeRatesTime()'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::checkReturnState()':
qwrapper.cpp:(.text+0x80c): undefined reference to `Calculator::aborted()'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::printResultInBase(int, MathStructure&, QString&)':
qwrapper.cpp:(.text+0xc3a): undefined reference to `Calculator::print[abi:cxx11](MathStructure const&, int, PrintOptions const&)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::runCalculation(std::__cxx11::basic_string, std::allocator > const&)':
qwrapper.cpp:(.text+0x141c): undefined reference to `Calculator::print[abi:cxx11](MathStructure const&, int, PrintOptions const&)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::worker()':
qwrapper.cpp:(.text+0x2047): undefined reference to `Calculator::startControl(int)'
qwrapper.cpp:(.text+0x205b): undefined reference to `Calculator::stopControl()'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::QWrapper(QObject*)':
qwrapper.cpp:(.text+0x2557): undefined reference to `Calculator::useDecimalPoint(bool)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::fileDownloaded(QNetworkReply*)':
qwrapper.cpp:(.text+0x2c6a): undefined reference to `Calculator::getExchangeRatesTime()'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `QWrapper::setDecimalSeparator(QString const&)':
qwrapper.cpp:(.text+0x261): undefined reference to `Calculator::useDecimalPoint(bool)'
CMakeFiles/plasmoidplugin.dir/qwrapper.cpp.o: In function `_GLOBAL__sub_I_qwrapper.cpp':
qwrapper.cpp:(.text.startup+0x33f): undefined reference to `Number::Number(long, long, long)'
collect2: error: ld returned 1 exit status
plugin/CMakeFiles/plasmoidplugin.dir/build.make:147: recipe for target 'plugin/libplasmoidplugin.so' failed
make[2]: *** [plugin/libplasmoidplugin.so] Error 1
CMakeFiles/Makefile2:155: recipe for target 'plugin/CMakeFiles/plasmoidplugin.dir/all' failed
make[1]: *** [plugin/CMakeFiles/plasmoidplugin.dir/all] Error 2
Makefile:138: recipe for target 'all' failed
make: *** [all] Error 2

123