Weird behavior for Qt Creator when removing events for objects.

[voncloft]

Over the course of debugging parts of my project I will occasionally remove functions for an object-say QListview and I no longer need the itemChanged event. So I will delete it from the MainWindow.cpp.

Everything seems "fine" for the moment, however maybe 10 minutes go by and I update part of my code and sure enough I get a reference to a piece of code that I deleted. I don't have the error off the top of my head I am currently at work,, but for some reason the deletion of events for objects never stay deleted for long. It is quite annoying and I am curious if there is a fix for this.

Also if anyone can have the "Tree" view not rely on dark theme colors while in project mode?

Thanks.

[jsulm]

@voncloft said in Weird behavior for Qt Creator when removing events for objects.:

remove functions for an object-say QListview and I no longer need the itemChanged event

I don't quite understand what you mean.
Can you please show some code - before and after the change you mean?

Also, sometimes it helps to do a complete rebuild: delete build folder, run qmake and build.

[voncloft]

@jsulm said in Weird behavior for Qt Creator when removing events for objects.:

@voncloft said in Weird behavior for Qt Creator when removing events for objects.:

remove functions for an object-say QListview and I no longer need the itemChanged event

I don't quite understand what you mean.
Can you please show some code - before and after the change you mean?

Also, sometimes it helps to do a complete rebuild: delete build folder, run qmake and build.

Say for example I have QListview and I am using the itemChanged to debug something.....then I find out I don't need itemChanged but instead need itemSelected so I delete itemChanged, its pointless no longer needed.

So I keep pushing along and critiquing my app just doing whatever, then I hit the green arrow to run.....and then I get a reference to itemChanged for Qlistview saying referenced to non existing function.

I will get an error to add to the moc file Yes to All, something about the project being changed outside the directory and I get an Elf error in the program. If I go to form_ui.h and remove the functioin of itemChanged it works....but I have to keep deleting the declarative statment, its as if Qt won't let me delete the declaration.

I don't have the information off the top of my head, but its the best I can describe at the moment....I am currently at work so I am unable to debug at the moment, once I am home I will gladly enter the information.

[mrjj]

@voncloft

Hi
you must also delete them from mainwindow.h

Slots are just like normal functions with a definition and a body so
it must be removed from both .cpp and .h

[voncloft]

@mrjj said in Weird behavior for Qt Creator when removing events for objects.:

@voncloft

Hi
you must also delete them from mainwindow.h

Slots are just like normal functions with a definition and a body so
it must be removed from both .cpp and .h

I have done that as well and still the event is readded for some reason.

[mrjj]

@voncloft

Hi
That can be some of the xx_ui files somehow ended up in project folder.
Or the usual case where one must to a clean all, rebuild or even delete the build folder.

In any case, if you delete the slot function, its normally gone.

[voncloft]

@mrjj said in Weird behavior for Qt Creator when removing events for objects.:

@voncloft

Hi
That can be some of the xx_ui files somehow ended up in project folder.
Or the usual case where one must to a clean all, rebuild or even delete the build folder.

In any case, if you delete the slot function, its normally gone.

How do any of those things even happen?

[mrjj]

@voncloft
Hi
Hard to say. often with shadow building setting turning it on/of or change path.
The reason for deleting the build folder is that sometimes make cachces things.