I have started to develop an app using Qt Creator, and I am dealing with signals and slots. The problem I have is that I have no way to figure out how to view the code generated from my .ui file I am building. I want to edit some signals and slots but I can't do more than the GUI stuff. Is there a way to view all the source code that is generated when I build my .ui file in creator, or do I have to use another part of the Qt suite?
The .ui file is fed to uic to generate .ui.h file. You should be including that file in your code. Place the cursor over the name of the include file within the #include "foo.ui.h" line, and press F2 to see the contents of the file.
There is no other output from a .ui file. "Qt", specifically the Makefile for your project, doesn't generate anything besides a .ui.h file.
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I have a Qt project in Qt Creator. I have a qrc file with the QMLs registered and everything works. However for some reason the "projects" view of Qt Creator doesn't show the QML folder (screenshot attached) like it does for any example project.
I'm just curious. Why does QML folder not show in my project but it shows up for the example projects?
You need to add them to your .pro file (if I'm not wrong it's enough to append them to DISTFILES).
Figures that you have to add the files to the DISTFILES directive.
I am recently new to Qt but I have to understand and modify a huge Qt project by someone else.
Is it possible to check the signal slot connection relationship from the source code without finding all the corresponding connect() function?
I heard that the MOC file stores this information somewhere, but I cannot find them out.
If you are looking only for MOC file then you can find it in debug directory. This Directory will be created at same location where your project is located. You need to compiles your code in Qt creator.
Look into the build directory, for every header file that have a class that inherit QObject, moc will generate a cpp file that has a moc_* prefix.
Ex.: ClassA.h -> moc_ClassA.cpp
Since I'm using SCons instead of qmake, I have no project (.pro) file, and for this reason Qt Creator (I use it only to make GUI) refuses to connect signals to slots. I'd like to manually edit .ui file to add appropriate connections. What should I change?
Use uic to compile the ui file as Karlson said. For example:
uic yourinterface.ui -o uicompiled.h
This way you can generate complete class from the ui files and than you can just plug them into your codebase
qmake will convert the .ui file into .pro and then to a make file. But you still need to run uic to compile your .ui files to generate the meta objects to allow the Signal-Slot connection to occur. Also headers for class definitions might be helpful.
Normally when you subclass the ui you will connect the signals using connect functions to custom defined slots within the subclassed class.
I want to create a gui, if it means implementing the code, where do I implement the code? And how to run the qtdesigener?
You can use Qt Designer, or Qt Creator which is a full developement environment (IDE) not just a GUI designer. Visit this site http://qt.nokia.com/products/developer-tools
Each window or widget in Qt generally is defined in 3 files:
some_name.ui - this file is generated by Qt Designer or Qt creator.
some_name.h - this is the C++ header file that contains Class declaration
some_name.cpp - this file contains C++ class implementation
some_name ofourse is the name of your widget/window.
When You add new windows/widgets to your Qt project you have to modify Your *.pro file which contains information on how to build your project.
The following tutorial shows a hello world in qt creator:
http://www.youtube.com/watch?v=QLT7oEt6gLE
I hope this is what you were looking for.
I'm using Qt Creator.
I'm using the signals and slots editor, and I want to see the code it generates.
How can I see the code?
Thanks!
Let's say you have in Qt Creator a form file called widget.ui.
Once you've compiled your project, you'll find in your project folder a filed called ui_widget.h.
If you open it, you'll see the code generated by the uic tool.
when you use qt creater, this one is going to create a file with the name of your project, in my case it is called "build-prueba-Desktop_Qt_5_7_0_GCC_64bit-Debug", then in that file you have to look for a file with the "ui_" prefix, into that, you have the code you need