Example of Virtual Keyboard showing in different languages

SGaist

From the supported platform 5.9 is at Ubuntu 16.04. You're version of g++ is a bit outdated in that regards so you'll have to modify the mkspec a bit to remove the date-time warning as well as change the c++1z with something a little older like c++14.

Pradeep Kumar

Hi,

I have updated g++,

gcc version 5.4.1 20160904 (Ubuntu 5.4.1-2ubuntu1~14.04)
gcc version 5.4.1 20160904 (Ubuntu 5.4.1-2ubuntu1~14.04)

gcc is same as g++,

still i am unable to achieve it.

i used qmake
-Inspiron-3558:~/Qt5.8.0/5.8/Src/qtvirtualkeyboard/src/virtualkeyboard$ /home/user/Qt5.8.0/5.8/gcc_64/bin/qmake
then used make

-Inspiron-3558:~/Qt5.8.0/5.8/Src/qtvirtualkeyboard/src/virtualkeyboard$ make
rm -f libqtvirtualkeyboardplugin.so
g++ -Wl,--no-undefined -Wl,-O1 -Wl,--enable-new-dtags -Wl,-z,origin -Wl,-rpath,$ORIGIN/../../lib -Wl,-rpath,$ORIGIN/../../lib -shared -o libqtvirtualkeyboardplugin.so .obj/platforminputcontext.o .obj/inputcontext.o .obj/abstractinputmethod.o .obj/plaininputmethod.o .obj/inputengine.o .obj/shifthandler.o .obj/plugin.o .obj/inputmethod.o .obj/selectionlistmodel.o .obj/defaultinputmethod.o .obj/abstractinputpanel.o .obj/enterkeyaction.o .obj/enterkeyactionattachedtype.o .obj/settings.o .obj/virtualkeyboardsettings.o .obj/trace.o .obj/desktopinputpanel.o .obj/inputview.o .obj/appinputpanel.o .obj/qrc_default_style.o .obj/qrc_retro_style.o .obj/qrc_content.o .obj/qrc_layouts.o .obj/moc_platforminputcontext.o .obj/moc_inputcontext.o .obj/moc_abstractinputmethod.o .obj/moc_plaininputmethod.o .obj/moc_inputengine.o .obj/moc_shifthandler.o .obj/moc_inputmethod.o .obj/moc_selectionlistmodel.o .obj/moc_defaultinputmethod.o .obj/moc_abstractinputpanel.o .obj/moc_enterkeyaction.o .obj/moc_enterkeyactionattachedtype.o .obj/moc_settings.o .obj/moc_virtualkeyboardsettings.o .obj/moc_plugin.o .obj/moc_trace.o .obj/moc_desktopinputpanel.o .obj/moc_inputview.o .obj/moc_appinputpanel.o -lxcb-xfixes -lxcb-render -lxcb-shape -lxcb -L/home/dheerendra/Qt5.8.0/5.8/gcc_64/lib -lQt5Quick -lQt5Gui -lQt5Qml -lQt5Network -lQt5Core -lGL -lpthread
/usr/bin/ld: .obj/platforminputcontext.o: Relocations in generic ELF (EM: 40)
.obj/platforminputcontext.o: error adding symbols: File in wrong format
collect2: error: ld returned 1 exit status
make: *** [../../plugins/platforminputcontexts/libqtvirtualkeyboardplugin.so] Error 1

I am getting the above errors, can u help me out,

Please provide guidance,

Thanks,

Pradeep Kumar

HI,

I installed latest g++ and gcc versions and

used qmake.
then make clean.
then make.
make install.

Then ran the basic program which is present in the path
/home/user/Qt5.8.0/5.8/Src/qtvirtualkeyboard/examples/virtualkeyboard/basic

I am getting virtual keyboard in ubuntu,
Thanks for the solutions and help,

But when i change the language present in the path,
/home/user/Qt5.8.0/5.8/Src/qtvirtualkeyboard/src/virtualkeyboard

as CONFIG += lang-ar_AR in the virtualkeyboard.pro file,

then again followed the steps to compile the plugin,
but when i ran the basic program to launch virtual keyboard, i am not getting the button enabled, to select the language,

Please provide the guidance,

Thanks,

jsulm

@Pradeep-Kumar said in Example of Virtual Keyboard showing in different languages:

.obj/platforminputcontext.o: error adding symbols: File in wrong format

you should do it from a clean state - looks like you have binaries built with the old compiler.

Pradeep Kumar

Yes @jsulm i got that point made a clean then built it i got the virtual keyboard, but i am not getting for different languages, tats y i posted in earlier post.

Thanks,

SGaist

AFAICS you are setting only one language when building the module. You should list all the languages you want to support.

Pradeep Kumar

nope still the same, i provided 4 languages in .pro file,

still the same issue.

when i run make install

-Inspiron-3558:~/Qt5.8.0/5.8/Src/qtvirtualkeyboard/src/virtualkeyboard$ make install
install -m 755 -p ../../plugins/platforminputcontexts/libqtvirtualkeyboardplugin.so /home/user/Qt5.8.0/5.8/gcc_64/plugins/platforminputcontexts/libqtvirtualkeyboardplugin.so
strip --strip-unneeded /home/dheerendra/Qt5.8.0/5.8/gcc_64/plugins/platforminputcontexts/libqtvirtualkeyboardplugin.so
install -m 644 -p /home/user/Qt5.8.0/5.8/Src/qtvirtualkeyboard/lib/cmake/Qt5Gui/Qt5Gui_QVirtualKeyboardPlugin.cmake /home/dheerendra/Qt5.8.0/5.8/gcc_64/lib/cmake/Qt5Gui/

after this i run sample program.

Thanks,

mrdebug

The Qt open source package contains the qtvirtualkeyboard component.
I can build it without anu problem but I can't add the flag lang-all.
Insert CONFIG += lang-all in .pro file has no effect.

Pradeep Kumar

Hello,

now i am facing one more issue, when i try to compile the program using Qt creator,
getting the below mentioned errors,

home/user/Qt5.8.0/5.8/gcc_64/mkspecs/features/qt_plugin.prf:52: Cannot write file /mkspecs/modules-inst/qt_plugin_qtvirtualkeyboardplugin.pri: Cannot create parent directory
17:58:18: The process "/home/user/Qt5.8.0/5.8/gcc_64/bin/qmake" exited with code 3.
Error while building/deploying project virtualkeyboard (kit: Desktop Qt 5.8.0 GCC 64bit)
The kit Desktop Qt 5.8.0 GCC 64bit has configuration issues which might be the root cause for this problem.
When executing step "qmake".

But the kit is configured and rest of the programs are running, only the virtualkeyboard program is giving me this error...

Guidance is required,

Thanks,

jsulm

@Pradeep-Kumar said in Example of Virtual Keyboard showing in different languages:

Cannot write file /mkspecs/modules-inst/qt_plugin_qtvirtualkeyboardplugin.pri

Are you really trying to write to /mkspects ? This would be a subdirectory of the root directory where a normal user has no write access. Does this directory even exist?

Pradeep Kumar

Nope i dnt know regarding that as i was trying to compile the qtvirtualkeyboard program in ubuntu, i am getting the error, but i didnt find the compiling error in windows, strange.

is their any other configuration to be done.

Thanks,

SGaist

Can you show your .pro file ?

Again, did you start using out of source builds ?
Between two tries, did you nuke the build folder ? If so, how did you nuke it ?

Pradeep Kumar

Hello,

pro file qt virtual keyboard,

TARGET  = qtvirtualkeyboardplugin
DATAPATH = $$[QT_INSTALL_DATA]/qtvirtualkeyboard

QMAKE_DOCS = $$PWD/doc/qtvirtualkeyboard.qdocconf
include(doc/doc.pri)

QT += qml quick gui gui-private core-private

win32 {
    CONFIG += no-pkg-config
    QMAKE_TARGET_PRODUCT = "Qt Virtual Keyboard (Qt $$QT_VERSION)"
    QMAKE_TARGET_DESCRIPTION = "Virtual Keyboard for Qt."
}

!no-pkg-config: CONFIG += link_pkgconfig

include(../config.pri)

CONFIG += lang-ar_AR lang-fr_FR

SOURCES += platforminputcontext.cpp \
    inputcontext.cpp \
    abstractinputmethod.cpp \
    plaininputmethod.cpp \
    inputengine.cpp \
    shifthandler.cpp \
    plugin.cpp \
    inputmethod.cpp \
    selectionlistmodel.cpp \
    defaultinputmethod.cpp \
    abstractinputpanel.cpp \
    enterkeyaction.cpp \
    enterkeyactionattachedtype.cpp \
    settings.cpp \
    virtualkeyboardsettings.cpp \
    trace.cpp \

HEADERS += platforminputcontext.h \
    inputcontext.h \
    abstractinputmethod.h \
    plaininputmethod.h \
    inputengine.h \
    shifthandler.h \
    inputmethod.h \
    selectionlistmodel.h \
    defaultinputmethod.h \
    abstractinputpanel.h \
    virtualkeyboarddebug.h \
    enterkeyaction.h \
    enterkeyactionattachedtype.h \
    settings.h \
    virtualkeyboardsettings.h \
    plugin.h \
    trace.h \

RESOURCES += \
    content/styles/default/default_style.qrc \
    content/styles/retro/retro_style.qrc \
    content/content.qrc

LAYOUT_FILES += \
    content/layouts/en_GB/dialpad.qml \
    content/layouts/en_GB/digits.qml \
    content/layouts/en_GB/handwriting.qml \
    content/layouts/en_GB/numbers.qml \
    content/layouts/en_GB/symbols.qml

contains(CONFIG, lang-en.*) {
    LAYOUT_FILES += \
        content/layouts/en_GB/main.qml
}
contains(CONFIG, lang-ar.*) {
    LAYOUT_FILES += \
        content/layouts/ar_AR/digits.qml \
        content/layouts/ar_AR/main.qml \
        content/layouts/ar_AR/numbers.qml \
        content/layouts/ar_AR/symbols.qml
}
contains(CONFIG, lang-da.*) {
    LAYOUT_FILES += \
        content/layouts/da_DK/main.qml \
        content/layouts/da_DK/symbols.qml
t9write: LAYOUT_FILES += \
        content/layouts/da_DK/handwriting.qml
}
contains(CONFIG, lang-de.*) {
    LAYOUT_FILES += \
        content/layouts/de_DE/main.qml \
        content/layouts/de_DE/symbols.qml
t9write: LAYOUT_FILES += \
        content/layouts/de_DE/handwriting.qml
}
contains(CONFIG, lang-es.*) {
    LAYOUT_FILES += \
        content/layouts/es_ES/main.qml \
        content/layouts/es_ES/symbols.qml
t9write: LAYOUT_FILES += \
        content/layouts/es_ES/handwriting.qml
}
contains(CONFIG, lang-fa.*) {
    LAYOUT_FILES += \
        content/layouts/fa_FA/digits.qml \
        content/layouts/fa_FA/main.qml \
        content/layouts/fa_FA/numbers.qml \
        content/layouts/fa_FA/symbols.qml
}
contains(CONFIG, lang-fi.*) {
    LAYOUT_FILES += \
        content/layouts/fi_FI/main.qml \
        content/layouts/fi_FI/symbols.qml
t9write: LAYOUT_FILES += \
        content/layouts/fi_FI/handwriting.qml
}
contains(CONFIG, lang-fr.*) {
    LAYOUT_FILES += \
        content/layouts/fr_FR/main.qml \
        content/layouts/fr_FR/symbols.qml
t9write: LAYOUT_FILES += \
        content/layouts/fr_FR/handwriting.qml
}
contains(CONFIG, lang-hi.*) {
    LAYOUT_FILES += \
        content/layouts/hi_IN/main.qml \
        content/layouts/hi_IN/symbols.qml
}
contains(CONFIG, lang-it.*) {
    LAYOUT_FILES += \
        content/layouts/it_IT/main.qml \
        content/layouts/it_IT/symbols.qml
t9write: LAYOUT_FILES += \
        content/layouts/it_IT/handwriting.qml
}
contains(CONFIG, lang-ja.*) {
    LAYOUT_FILES += \
        content/layouts/ja_JP/main.qml \
        content/layouts/ja_JP/symbols.qml
}
contains(CONFIG, lang-ko.*) {
    LAYOUT_FILES += \
        content/layouts/ko_KR/main.qml \
        content/layouts/ko_KR/symbols.qml
}
contains(CONFIG, lang-nb.*) {
    LAYOUT_FILES += \
        content/layouts/nb_NO/main.qml \
        content/layouts/nb_NO/symbols.qml
t9write: LAYOUT_FILES += \
        content/layouts/nb_NO/handwriting.qml
}
contains(CONFIG, lang-pl.*) {
    LAYOUT_FILES += \
        content/layouts/pl_PL/main.qml \
        content/layouts/pl_PL/symbols.qml
t9write: LAYOUT_FILES += \
        content/layouts/pl_PL/handwriting.qml
}
contains(CONFIG, lang-pt.*) {
    LAYOUT_FILES += \
        content/layouts/pt_PT/main.qml \
        content/layouts/pt_PT/symbols.qml
t9write: LAYOUT_FILES += \
        content/layouts/pt_PT/handwriting.qml
}
contains(CONFIG, lang-ro.*) {
    LAYOUT_FILES += \
        content/layouts/ro_RO/main.qml \
        content/layouts/ro_RO/symbols.qml \
        content/layouts/ro_RO/handwriting.qml
}
contains(CONFIG, lang-ru.*) {
    LAYOUT_FILES += \
        content/layouts/ru_RU/main.qml \
        content/layouts/ru_RU/symbols.qml
t9write: LAYOUT_FILES += \
        content/layouts/ru_RU/handwriting.qml
}
contains(CONFIG, lang-sv.*) {
    LAYOUT_FILES += \
        content/layouts/sv_SE/main.qml \
        content/layouts/sv_SE/symbols.qml
t9write: LAYOUT_FILES += \
        content/layouts/sv_SE/handwriting.qml
}
contains(CONFIG, lang-zh(_CN)?) {
    LAYOUT_FILES += \
        content/layouts/zh_CN/main.qml \
        content/layouts/zh_CN/symbols.qml
}
contains(CONFIG, lang-zh(_TW)?) {
    LAYOUT_FILES += \
        content/layouts/zh_TW/main.qml \
        content/layouts/zh_TW/symbols.qml
}

retro-style {
    DEFINES += QT_VIRTUALKEYBOARD_DEFAULT_STYLE=\\\"retro\\\"
} else {
    DEFINES += QT_VIRTUALKEYBOARD_DEFAULT_STYLE=\\\"default\\\"
}

OTHER_FILES += \
    content/styles/default/*.qml \
    content/styles/retro/*.qml \
    content/*.qml \
    content/components/*.qml \
    qtvirtualkeyboard.json

!disable-desktop:isEmpty(CROSS_COMPILE):!qnx {
    SOURCES += desktopinputpanel.cpp inputview.cpp
    HEADERS += desktopinputpanel.h inputview.h
    DEFINES += QT_VIRTUALKEYBOARD_DESKTOP
    !no-pkg-config:packagesExist(xcb) {
        PKGCONFIG += xcb xcb-xfixes
        DEFINES += QT_VIRTUALKEYBOARD_HAVE_XCB
    }
}
SOURCES += appinputpanel.cpp
HEADERS += appinputpanel.h

qtquickcompiler: DEFINES += COMPILING_QML

!disable-hunspell {
    exists(3rdparty/hunspell/src/hunspell/hunspell.h) {
        SOURCES += hunspellinputmethod.cpp hunspellinputmethod_p.cpp hunspellworker.cpp
        HEADERS += hunspellinputmethod.h hunspellinputmethod_p.h hunspellworker.h
        DEFINES += HAVE_HUNSPELL
        QMAKE_USE += hunspell
        exists(3rdparty/hunspell/data) {
            hunspell_data.files = 3rdparty/hunspell/data/*.dic 3rdparty/hunspell/data/*.aff
            hunspell_data.path = $$DATAPATH/hunspell
            INSTALLS += hunspell_data
            !prefix_build: COPIES += hunspell_data
        } else {
            error("Hunspell dictionaries are missing! Please copy .dic and .aff" \
                  "files to src/virtualkeyboard/3rdparty/hunspell/data directory.")
        }
    } else:!no-pkg-config:packagesExist(hunspell) {
        SOURCES += hunspellinputmethod.cpp hunspellinputmethod_p.cpp hunspellworker.cpp
        HEADERS += hunspellinputmethod.h hunspellinputmethod_p.h hunspellworker.h
        DEFINES += HAVE_HUNSPELL
        PKGCONFIG += hunspell
    } else {
        message("Hunspell not found! Spell correction will not be available.")
    }
}

pinyin {
    SOURCES += \
        pinyininputmethod.cpp \
        pinyindecoderservice.cpp
    HEADERS += \
        pinyininputmethod.h \
        pinyindecoderservice.h
    DEFINES += HAVE_PINYIN
    QMAKE_USE += pinyin
    pinyin_data.files = $$PWD/3rdparty/pinyin/data/dict_pinyin.dat
    pinyin_data.path = $$DATAPATH/pinyin
    INSTALLS += pinyin_data
    !prefix_build: COPIES += pinyin_data
}

tcime {
    SOURCES += \
        tcinputmethod.cpp
    HEADERS += \
        tcinputmethod.h
    DEFINES += HAVE_TCIME
    cangjie: DEFINES += HAVE_TCIME_CANGJIE
    zhuyin: DEFINES += HAVE_TCIME_ZHUYIN
    QMAKE_USE += tcime
    tcime_data.files = \
        $$PWD/3rdparty/tcime/data/qt/dict_phrases.dat
    cangjie: tcime_data.files += \
        $$PWD/3rdparty/tcime/data/qt/dict_cangjie.dat
    zhuyin: tcime_data.files += \
        $$PWD/3rdparty/tcime/data/qt/dict_zhuyin.dat
    tcime_data.path = $$DATAPATH/tcime
    INSTALLS += tcime_data
    !prefix_build: COPIES += tcime_data
}

hangul {
    SOURCES += \
        hangulinputmethod.cpp \
        hangul.cpp
    HEADERS += \
        hangulinputmethod.h \
        hangul.h
    DEFINES += HAVE_HANGUL
}

openwnn {
    SOURCES += openwnninputmethod.cpp
    HEADERS += openwnninputmethod.h
    DEFINES += HAVE_OPENWNN
    QMAKE_USE += openwnn
}

lipi-toolkit:t9write: \
    error("Conflicting configuration flags: lipi-toolkit and t9write." \
          "Please use either one, but not both at the same time.")

lipi-toolkit {
    CONFIG += exceptions
    SOURCES += \
        lipiinputmethod.cpp \
        lipisharedrecognizer.cpp \
        lipiworker.cpp
    HEADERS += \
        lipiinputmethod.h \
        lipisharedrecognizer.h \
        lipiworker.h
    DEFINES += HAVE_LIPI_TOOLKIT
    INCLUDEPATH += \
        3rdparty/lipi-toolkit/src/include \
        3rdparty/lipi-toolkit/src/util/lib
    LIBS += -L$$OUT_PWD/../../lib \
        -lshaperecommon$$qtPlatformTargetSuffix() \
        -lltkcommon$$qtPlatformTargetSuffix() \
        -lltkutil$$qtPlatformTargetSuffix()
    win32: LIBS += Advapi32.lib
    else: LIBS += -ldl
    record-trace-input: DEFINES += QT_VIRTUALKEYBOARD_LIPI_RECORD_TRACE_INPUT
}

t9write {
    include(3rdparty/t9write/t9write-build.pri)
    equals(T9WRITE_FOUND, 0): \
        error("T9Write SDK could not be found. Please make sure you have extracted" \
              "the contents of the T9Write SDK to $$PWD/3rdparty/t9write")
    SOURCES += \
        t9writeinputmethod.cpp \
        t9writeworker.cpp
    HEADERS += \
        t9writeinputmethod.h \
        t9writeworker.h
    DEFINES += HAVE_T9WRITE
    QMAKE_USE += t9write_db
    INCLUDEPATH += $$T9WRITE_INCLUDE_DIRS
    LIBS += $$T9WRITE_ALPHABETIC_LIBS
}

arrow-key-navigation: DEFINES += QT_VIRTUALKEYBOARD_ARROW_KEY_NAVIGATION

include(generateresource.pri)

RESOURCES += $$generate_resource(layouts.qrc, $$LAYOUT_FILES, /QtQuick/VirtualKeyboard)

PLUGIN_TYPE = platforminputcontexts
PLUGIN_EXTENDS = -
PLUGIN_CLASS_NAME = QVirtualKeyboardPlugin
load(qt_plugin)

Just added CONFIG += lang-ar_AR lang-fr_FR , to get the keyboard in arabic and french,
and i didnt change any other line,
its nt compiling in Qt creator,

I am not using out of source, and i deleted .pro.user file,deleted build folder then tries to compile, still no change, its not compiling.

Thanks,

michaelL

@Pradeep-Kumar dont use that project but the qtvirtualkeyboard.pro project that is above that directory and inside the .pro looks like this:

OTHER_FILES += README.md

load(qt_parts)
QT += core
CONFIG+= lang-all

add one more step "make" in build and put in arguments "install"

For me the project location is "Qt5.7.1/5.7/Src/qtvirtualkeyboard/qtvirtualkeyboard.pro"
What you are building is located on "Qt5.7.1/5.7/Src/qtvirtualkeyboard/src/virtualkeyboard/virtualkeyboard.pro"

I am able to see all languages on my linux desktop.

I also compiled with same QTCreator on desktop using qmake for my embedded linux and could see all languages except chinese/korea/japan/tawain. I keep getting "japaneseInputMethos is not a type" and so on.
Could anyone get those to work? On my PC they work but not on embedded.
I followed this section http://doc.qt.io/qt-5/qtvirtualkeyboard-deployment-guide.html and deploy the plugins to my embedded linux but i get all languages except those. Is there any other files i have to deploy for Japan/Korea/Chinese/Tawain languages?
Any idea?

Pradeep Kumar

Hi,

@michaelL

so what is the difference between the qtvirtualkeyboard in the path

Qt5.7.0/5.7/Src/qtvirtualkeyboard/src/virtualkeyboard/virtualkeyboard.pro

and

in Qt5.7.0/5.7/Src/qtvirtualkeyboard/qtvirtualkeyboard.pro,

And i am not getting in respective languages, from the path
Qt5.7.0/5.7/Src/qtvirtualkeyboard/qtvirtualkeyboard.pro

Are u getting?

Thanks,

michaelL

@Pradeep-Kumar the Qt5.7.0/5.7/Src/qtvirtualkeyboard/qtvirtualkeyboard.pro is the main project for all of the inside projects. You have to build it so that all files/languages/layout and so on are compiled too. I think the projects inside have dependencies of the others.
I am getting all languages on my PC running Qt5.7.1
If you use QT Creator to make the project you have to add a "Build step" in "build settings" under "build setps"
The step you add is "make" and type in arguments "install".
So qt creator will do qmake->make->make install
If it does it with no error you can open the basic example project and you will get all languages.