Keyboard layout switching in Qt, not just in Qt for embedded Linux
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Are you sure you are doing an x86 embedded build ?
If you are using Qt Creator, just switch from one kit to another one. Or if from the command line, use the correct qmake version.
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The simplest way on the command line is to give the full path to the qmake corresponding to which version of Qt you want to compile with.
On Qt Creator, you have to check your kits.
Have a nice time
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Hello again,
I had a nice time indeed. I hope you're doing well, too.
I finally tried to tackle Qt for Embedded Linux again, but I got another problem:
I set up a new VM and installed only Qt for Embedded Linux SDK. When I found out that this SDK doesn't include QtCreator, I installed QtCreator version 3.2.1. Now I have the problem that it doesn't find any kits. I assumed when you install an SDK it would be registered in a place where QtCreator could find it, but apparently just extending PATH doesn't do the trick.Do I have to add it manually? I tried that, too, but the SDK doesn't have a GCC. I tried using RCC instead, but QtCreator says that this one is not able to compile the project. And unfortunately there doesn't seem to be a tutorial on that here. so I'd like to know
- how to properly register the SDK so QtCreator sees it and
- if that's not possible, how to link a kit manually
Cheers
Alex -
Also the SDK we're currently using for compiling (a custom-made arm SDK) has some functionality that's required as well, so if I switch all paths in our compile-scripts to the Qt for Embedded Linux SDK I get the error
"configure: error: C compiler cannot create executables"So apparently I need some functionality from the current SDK, too. I guess that means I'd have to merge both SDKs, right? Is something like that even doable? I mean, obviously it's possible to customize an SDK, but the Qt for Embedded Linux one seems to be the only one capable of keyboard layout switching, so I'm expecting massive compatibility problems.
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You are mixing several things.
To register a new version of Qt with Qt Creator you have to go the Build & Run panel of the Preferences, Qt Version and add it there. Qt doesn't provide gcc (or rather g++) you have to install these using your linux distribution package manager.
Did you already cross-compiled Qt for arm ?
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Yes, we've been cross-compiling the project for arm for quite some time now, but instead of QtCreator we use sh-scripts that call makefiles for that. QtCreator was used for simulation only.
Incidentally I found out that "QKbdDriverFactory::create" throws its error only inside of QtCreator. When using the sh-scripts it compiles fine, even though as far as I can tell we're referencing the same SDK in both cases. Of course switching layouts doesn't work yet because I just tested invoking the create-function so far and I can't tell if it will work at all. Is there a working example somewhere? I've been searching for some time now, but to no avail. I do know roughly what to do but without an example I'd have to guess around a lot, without knowing if our custom SDK (and our current software architecture) can do it at all.
About QtCreator:
That problem is fairly minor now because if I switch to embedded SDK, some other arm-related things are missing, but thanks for the help. After going back to our original version of QtCreator (2.4.1) the Qt Kit tab is fortunately gone (so no more manually configuring a kit), so I did what you told me and now the kit is there, but in the SDK's qdeclarativeitem.h it doesn't like Q_REVISION. But since this is likely a dead-end unless I find out how to merge both SDKs this issue is not important anymore.And one more question:
Can Qt for Embedded Linux SDK handle special things like when you're in Chinese and you type a bunch of characters they get combined into fewer characters? When I searched around for alternative solutions to using the embedded SDK and I read that xkbcommon can not do that I started wondering if the SDK can do it.
http://fooishbar.org/tell-me-about/xkbcommon-intro/ -
Are you trying to build Qt from Qt Creator ?
Kanji handling ? I don't know at all, the subject always intrigued me but I didn't take the time to investigate that.
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Building Qt from Qt Creator? No, we installed a Qt SDK that included Qt Creator.
So, do you know of a working example? The examples on http://doc.qt.digia.com/4.6/examples-embeddedlinux.html don't have anything to do with keyboard layouts. I could test Kanji handling there.
