Currently I am working on a project that includes Qt Qml and tensorflow. I got the method to build Qt widget application but I could not find out how to build Qt Qml using Bazel.. Pls help on this.
Which platform are you targetting?
I worked in a project integrating Tensorflow with Qt/QML for Linux, iOS and android. One option is to compile Tensorflow with make for each platforms. Details about how to do this with an example app are given in this post.
https://mechatronicsblog.com/machine-learning-on-desktop-ios-and-android-with-tensorflow-qt-and-v-play/
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I have recently installed Qt Creator 5.12. I can use the edit mode to write codes and can the successfully build and run projects with MinGw compiler. However, I have problems with using the Design mode. The library of objects doesn't allow me to drag any of the the objects to my main window.
How can I overcome this issue?
Following advice on a question I asked previously, I am trying to use Box2D with my QML app.
I have downloaded Box2D for QML here: https://github.com/qml-box2d/qml-box2d
I have followed the instructions :
Extracted the files to my Import folder (Qt/5.4/android_armv7/imports/)
Opened Box2D.pro in Qt and built it.
The libBox2D.so file was created as per the instructions I was following.
I have tried using Box2D in my QML project. First with my android app, then with a desktop app.
On each occasion I am getting an error:
module "Box2D" is not installed
I'm stuck with this, can someone help me?
You need to run make install (nmake install on Windows) so that the Box2D files are installed to e.g. Qt/5.4/android_armv7/qml, in your case. To use nmake, you need to have your development environment set up correctly. This is explained here, although that's specifically aimed at building Qt itself. If you're using MSVC, it is enough to open MSVC's developer command prompt and run nmake from there.
I'm new to Qt - please, can someone tell me how to build an app so I can run in on other computer without Qt?
I downloaded Qt for Mac, I can run the provided examples. Now I would like to distribute the resulting application in a self-contained package so that users don't have to install or do anything. What do I have to do?
I have the very latest 5.0.1 version.
This is documented in Qt's documentation:
http://qt-project.org/doc/qt-5.0/qtdoc/deployment.html
Note that currently, a static build of Qt 5.0 does not work. (4.8 works.)
My goal is to be working on / debugging qt creator plugins and, maybe, editing / debugging qt creator source code. Towards this end I've tried a couple of things:
Downloading source for the qt sdk and qt creator, compiling each, and then making a qt creator plugin project and hooking everything together by hand. This got complicated pretty quickly (I tried to keep my plugin project outside the qt-creator/src/plugin/ folder) and doesn't really get me to a nice spot in terms of debugging.
Using an installed version of the qt creator to open the qtcreator.pro that came along with the source, adding a qt creator plugin as a sub project, and building everything from the already installed version of qt creator.
I like the second approach a lot because I have control over everything but I can rely on qt creators tools that make projects, enhance debugging, etc. There's just one small problem...
When I run my shiny new build of qt creator (with my plugin project) from inside the installed version all I get is a popup called "qtcreator_process_stub" that says "This is an internal helper of Qt Creator. Do not run it manually. Press to close this window..."
So I'm not really sure how to debug my build of qt creator from my instance of qt creator. Any ideas? Note: if I run the generated Qt Creator.app I get a functioning instance of qt creator with my plugin loaded properly.
I believe this was a versioning problem. I had an older version of the ide installed and was using it to build and debug a newer version of the ide.
I was able, in the older ide, to launch and debug the new ide as an external process through the debug menu... but that was mildly annoying.
Once I installed a new version of the ide I was able to debug like normal.
Questions:
Is Qt Creator built with Qt Creator?
Similarly, is Qt Designer built with Qt Designer?
BTW, why are there two Qt IDEs? Are they competitors? Which one should I use? I am using Creator.
What is Qt SDK? I am asking this because the Qt Designer & Creator 2.2.1 and Qtmake 4.7.4 that I installed thro ubuntu 11.10 s/w centre does not work. The build menu is all greyed out.
When I downloaded the latest QtSDK (2.3.1/4.7.4) into a separate installation into /opt/QtSDK, both the ubuntu sanctioned installation and the /opt/QtSDK would work as expected.
Why did my ubuntu sanctioned installation not work without the SDK? What does the SDK do?
This one is for Ubuntu enthusiasts - Qt IDE requires the SDK to work, and yet ubuntu released both Creator/Designer without checking if they work first? There is no QtSDK installation item in s/w centre. Is that intentional, or a procedural bug?
After I build my desktop app (I am building a tabbed file explorer) on Linux, what steps do I need to make to have it running on Windows 7/Vista? Will I rebuild on a windows version of Qt Creator?
I also notice that Qt Creator code generation is not perfect. It would forget to include some Qt library files in the auto-generated code, and I had to correct that manually.
Is Qt Creator built with Qt Creator?
I believe so.
That doesn't mean that everyone who works on Qt has to use it - just that I believe that lots of people do.
I don't work for any of the companies that have produced Qt, but my reasoning is:
A Google search for "dogfooding qt creator" brings up plenty of hits, including this comment from November 2010:
We’re also “dogfooding” by releasing complex apps like Qt Creator and the Ovi Suite on the desktop ports of Qt
They've put a massive amount of effort into Qt Creator over the last few years. It's hard to imagine that being worthwhile, unless they used it themselves
At recent Qt Developer Days, Qt Developers have spoken really enthusiastically about Qt Creator
Similarly, is Qt Designer built with Qt Designer?
Yes. A look at the Qt Designer source code shows plenty of .ui (Designer) files.
Why are there two Qt IDEs? Are they competitors? Which one should I use? I am using Creator.
When you edit .ui files insiide Qt Creator, you are still running Qt Designer: it's simply showing the Designer window inside Creator, for convenience.
What is Qt SDK? ... What does the SDK do?
Qt SDK is just a convenient way to download all the Qt tools in one go. You don't have to use it.
This one is for Ubuntu enthusiasts ... Is that intentional, or a procedural bug?
Sorry - no idea. It's hard to imagine it being intentional though.
After I build my desktop app (I am building a tabbed file explorer) on Linux, what steps do I need to make to have it running on Windows 7/Vista? Will I rebuild on a windows version of Qt Creator?
You will need to install Qt on a Windows PC, and then build your source code in it.
You can either do that by using Qt Creator and the Windows compiler it includes (mingw) or you can use another compiler, if you have one, e.g. Visual Studio.
I also notice that Qt Creator code generation is not perfect. It would forget to include some Qt library files in the auto-generated code, and I had to correct that manually.
If you've used any non-Qt classes in arguments to signals and slots, then this answer may help you there.