My problem is that i installed QT Designer and also implemented QT as an external tool in my Pycharm. This means I can open QT by pressing Tools --> External Tools --> QTdesigner. I created a little test UI and safed it in my Projectdirectory. Now I convert this .ui file with pyside2-uic.exe. I posted this as a picture.
Now i can rightclick on my .ui file in my Project and choose under External Tools the PyUIC. It builds a .py file. So far so good. Here is my problem. Now I press run but nothing happens. I can´t start the UI from here. What did I do wrong?
Related
In CLion, What is the difference between Qt Console and Qt Widgets Executable project templates.
My intuition is that Qt Console is CLI and Widgets is GUI, but googling hasn't confirmed this. I'm hoping this QnA will help future googlers.
"Console" means text-based (which doesn't prevent it from opening windows or showing dialogs). On some platforms (e.g. Windows) this will force a "console" or terminal window to appear.
The "widgets" template is a pure GUI application (which doesn't stop it from manually opening a "console" or text-window on supported platforms).
Update:
Because this was partly to have a project to code-browse the whole of qt, here is a much better way to do this: Code Browser by Woboq for C & C++
This even lets you browse into the includes outside the project like the system includes or the standard library.
Old Post:
My question is about Qt project in git://code.qt.io/qt/qt5.git repository. I checked out version 5.12.
My assumption is that qtcreator knows the qmake file but nothing about the configure command. Hence
I used the configure command to prepare the build in a shadow build directory
In QTCreator I opened qt.pro located in the git workspace
QTCreator opens the build settings dialog and I import them from the shadow build directory
Finally I click build in QTCreator.
But the compile window stalls when asking me for input. Qmake asks me about the licence type I want to choose. I had answered that already in the configure phase and even if I would agree to answer the question again, there is no prompt function in qtcreator's compile output window. Where did I go wrong?
If I forget about QTCreator and call make in the shadow build directory, then everything is build fine and without any licensing questions. When I then import the shadow build directory into a QTCreator, then I can build in QTCreator. But then I clicked Run qmake out of curiosity and I was back to square one, i.e. compile window asks me for input again and stops there forever.
Apart from my specific question I found no general documentation about building the qt libraries using QTCreator. I only find descriptions about compiling projects that use the Qt library.
Qt is not really meant to be compiled from within an IDE. However, this does not mean it's impossible to do. There are two ways to archive this:
First approach: Add the developer build as custom kit:
Run the configure script (and add the -developer-build option)
Open QtCreator and go to "Tools > Options > Kits"
Go to "Qt Versions" add press "Add" - select the qmake executable generated by the configure script. Then hit "Apply"
Go to "Kits" and press "Add" - Make shure to select the correct compilers and debugger and select the previously create "Qt Version". Press "Ok"
Open the top level .pro file in QtCreator and choose the previously created Kit. QtCreator will now use the correct qmake executable
This is the "proper" way to go. You can now use the project as any normal project, including changes to pro-files. Also, QtCreator now correctly detects the build directory, so you won't have to change that, even when opening one of the modules.
Second approach: Use as a normal project without qmake:
Run the configure script (and add the -developer-build option)
Run make qmake_all in the same terminal to let Qt prepare all makefiles, create headers etc.
Open the top level .pro file in QtCreator. You can choose any kit.
Go to Project > Your Kit > Build and disable the "qmake" step (the first of the default 2 steps)
Change the "build directory" to be wherever you built Qt - either a shadow build or the source directory
Hit Build and QtCreator will invoke make only, archieving the same behaviour as running make from the console.
This is kind of a workaround and I would not recommend using it for a full Qt build, unless the first approach does not work for you for whatever reason.
This can also be useful if you only want to make changes to a single Qt module, without compiling the whole Qt framework, i.e. you can clone one of the submodules and use your "existing" qmake on it instead of compiling QtBase (in that case, you skip step 4)
Final notice: When I tried opening the whole Qt-Project, QtCreator crashed on my system because the project was to big to handle. I would recommend you to only open one of the modules within the super repostitory, i.e. "qtbase", "qtdeclarative", etc.
I'm trying to work on an open-source project in Qt Creator on OSX. When I open the CMakeLists.txt like other CMake projects in Qt Creator it doesn't open the project. No folders, source files, not even the CMakeList.txt shows up in Qt Creator, just a completely blank project.
What could cause a project to do this?
Edit: the project opens properly in Ubuntu. It shows the CMakeLists.txt, source files, and everything. It even builds properly when I CMake in the command line on OSX. Qt Creator in OSX just does not open this project properly.
Eit 2: My build settings are completely empty too. There are no General Messages or messages of any kind.
Open your Preferences (Cmd+, on Mac) and go to the Build & Run and then CMake tab, do you see any CMake version listed there? For me, I have to add a manual entry because it doesn't automatically find my CMake. My manual entry is set to /Applications/CMake.app/Contents/bin/cmake so compare that with what you have in your settings.
Then restart Qt Creator and reopen your project. Go to Build & Run again and make sure the Kit you have selected for your project has a CMake Tool set (should be automatic if you have just the one CMake entry listed on the CMake tab).
Background Information
It looks like you are using Qt Creator 4.0. With that version, they changed a number of things related to how CMake projects are handled. When you first open a project, it won't create the build directory if it doesn't exist. Instead, it will run CMake in a temporary directory. This would be shown in the General Messages output pane if you had it open. Once you manually create the output directory as it appears in your project's Build Settings, Qt Creator will switch to running CMake in there instead. There's no indication this is happening apart from what is logged in the General Messages output pane, even if there's a problem with your CMakeLists.txt.
In your case, if there's genuinely nothing appearing in your General Messages output pane and CMake is working fine from the command line, that suggests something may be wrong with your Qt Creator settings.
How can I import these code examples into QT Creator 3.4.0 ? I tried the available import options but they don't work.
I tried to create an empty QML project and add the rectangle.qml file to it. When I tried to run it, nothing showed up.
The book examples contain files .qmlproject - which seems to be a project descriptor. I wonder if it is somehow possible to import these .qmlproject files into QT Creator, click and run the examples.
I think this link might help in finding the solution : https://forum.qt.io/topic/27525/what-is-qmlproject-file/3 .
Usually I'd say that you should go to File > Open File or Project... and select the .qmlproject and you're done, but support for this type of project file was disabled by default. If you try to do this now (I believe the change is in Creator 3.4), you'll just get an error message about Creator not supporting the mime type of the file, or something. Unfortunately, this is not a very useful error message for a beginner, and it won't tell you how to fix the problem.
If you want to use .qmlproject files in newer versions of Creator, you have to navigate to Help > About Plugins... and enable the QmlProjectManager plugin (it's under the Qt Quick section) by checking the box.
So this is how you should normally open project files in Qt Creator. As for the window not showing up, that's also commonly encountered and can be fixed by making the root item in your scene a Window:
Unlike QQuickView, QQmlApplicationEngine does not automatically create a root window. If you are using visual items from Qt Quick, you will need to place them inside of a Window.
Qt Creator's new project wizard handles this for you when you create a new Qt Quick project, as you saw when you got the "Hello World" window to open in your video. It was when you loaded concepts/rectangle.qml which had a Rectangle as its root item, that it stopped showing up. That QML file was likely used in a project where a QQuickView was displaying it.
I download the code(a game made with qt 3d) from Qt learning websites
After decompressing it, all i found are some qml file and photos. There is no any c++ file or the pro file. How can i open this as a project not a file in the qt creator and run it?
Thanks
It does not contain any source code, just qml files. It is entirely written in interpreted QML. You would need to run the "main.qml", which is the "game.qml" here, through the qml viewer as follows:
qmlviewer-qt4 game.qml
or
qmlviewer-qt4 game.qml
These applications are installed by the qt/qtquick and qtquick1 packages on my Linux box.