How to enable the language switcher in the Qt Quick Virtual Keyboard - Basic Example

TorKlingberg

Hi. I am new to Qt Creator on Linux. From the Welcome screen I opened "Qt Quick Virtual Keyboard - Basic Example". It runs great, but I want to enable the language switcher to the left of the space bar.

From the documentation and threads on this forum, I understand that I should add CONFIG += lang-all, but I cannot figure out where, or how to make it take effect.

My project has a file basic.pro, but adding CONFIG += lang-all there has no effect. I think I need to modify the qtvirtualkeyboard itself, and not just the example. There is no virtualkeyboard.pro in my project. There are 7 different ones spread around the Qt installation:

./Examples/Qt-5.10.0/virtualkeyboard/virtualkeyboard.pro
./Examples/QtVirtualKeyboard/virtualkeyboard/virtualkeyboard.pro
./5.10.0/Src/qtvirtualkeyboard/examples/virtualkeyboard/virtualkeyboard.pro
./5.10.0/Src/qtvirtualkeyboard/src/virtualkeyboard/virtualkeyboard.pro
./EnterpriseAddOns/QtVirtualKeyboard/2.0/Src/virtualkeyboard.pro
./EnterpriseAddOns/QtVirtualKeyboard/2.0/Src/examples/virtualkeyboard/virtualkeyboard.pro
./EnterpriseAddOns/QtVirtualKeyboard/2.0/Src/src/virtualkeyboard/virtualkeyboard.pro

Should I modify one of those, and how do I rebuild virtualkeyboard so it uses the new config?

I can build and run the example from the command line:

cd Examples/Qt-5.10.0/virtualkeyboard/basic
/sw/bin/qt/5.10.0/gcc_64/bin/qmake "CONFIG+=lang-all"
make "CONFIG+=lang-all"
./basic

...but the language switcher is still disabled. I think it's because again, I need to rebuild the virtualkeyboard plugin and not just the example.

TorKlingberg

Update: I got a lot further.

cd qt/5.10.0/Src/qtvirtualkeyboard/src/virtualkeyboard
/sw/bin/qt/5.10.0/gcc_64/bin/qmake CONFIG+="lang-all" && make && make install

It will give errors like Library 'pinyin' is not defined.

cd qt/5.10.0/Src/qtvirtualkeyboard/src/virtualkeyboard/3rdparty/openwnn
/sw/bin/qt/5.10.0/gcc_64/bin/qmake && make

Same for pinyin, tcime, then go back and build virtualkeyboard.

The example basic doesn't need to be rebuilt, just run it. I guess qtvirtualkeyboard is dynamically linked. Unclear how it knows where it load it from.

Now language switcher is enabled, and I can scroll through a long list of languages! I wish I knew how to do all this inside QtCreator though.

Languages like Japanese that need an IME are still broken. When I pick it, there is an error:

qml: Qt.createQmlObject(): failed to create object: 
    qrc:/QtQuick/VirtualKeyboard/content/layouts/ja_JP/japaneseInputMethod:1:57: JapaneseInputMethod is not a type

Somehow openwnn is still not loaded correctly. Any ideas?

michaelL

Hi Torklingberg,

could you get it to work.
I have the same issue.

LeLev

@michaelL hi,

you should use '@username' if not, the person will proably not recive notification

michaelL

@TorKlingberg DId you get it to work?