Create custom widget

hobbyProgrammer

This post is deleted!

mrjj

Is possible to create this widget using Qt Designer and then assign values to it dynamically?

Yes. Just Create a new Widget with UI and .h and cpp file
alt text

You can then use this from (other) code to make as many instances of the Widget as you want.
say in a MainWindow and put them in a layout there.

t0msk

@mrjj

Yes this is it, and how can I spawn it? I mean what is code for spawing it as graphics object and inserting into layout?

mrjj

@t0msk
Hi

Like any c++ class.

#include "mywidget.h"

MyWidget * instance = new MyWidget();
ui->somelayout->addWidget(instance );

t0msk

@mrjj said in Create custom widget:

@t0msk
Hi

Like any c++ class.

#include "mywidget.h"

MyWidget * instance = new MyWidget();
ui->somelayout->addWidget(instance );

Thank you :)

mrjj

@t0msk
Just as a note :)
If you really plan to use 100 instances of this, then maybe
you should use a layout inside a QScrollArea so it allows scrolling.
A layout alone. will not give scrollbars

t0msk

@mrjj said in Create custom widget:

@t0msk
Just as a note :)
If you really plan to use 100 instances of this, then maybe
you should use a layout inside a QScrollArea so it allows scrolling.
A layout alone. will not give scrollbars

Thanks :) Would be great if I could create folders in Forms directory :)

t0msk

@mrjj Can I ask you about that scroll area?

I wanted to add widget into:

ui->scrollAreaWidgetContents

But it doesn't have a addWidget method.

mrjj

@t0msk
Hi
Well you can.
Remove the ui/cpp/h from project. (dont check the delete file checkbox)
In the .pro file
you can add
FORMS += Controls/theForm.ui

and you can put the ui file in the sub folder Controls
and then Add the UI to the project.

You might also need to change the
INCLUDES +=Controls/theForm.h
and
SOURCES +=Controls/theForm.cpp

for it to find the .cpp and .h

mrjj

@t0msk said in Create custom widget:

ui->scrollAreaWidgetContents

Hi
Since you have ui. do the following.
Place any widget inside scroll area. (like button)
Right click besides this widget. (in scroll area)
Choose a layout in the layout menu.
Now delete this widget again. (the button)
The layout will stay!
Notice the name of the layout
then from code
ui->thenewlayoutname->addwidget(xx);

t0msk

@mrjj

Yea, I have it like that:

It is scrollAreaWidgetContents, but if I do ui->scrollAreaWidgetContents->Add it shows only AddAction.

mrjj

@t0msk
Hi
Look in the layout section of the properties.
alt text
to see the name.

And yes, its slightly confusing as the structure is a bit flatten
so
its not
ui->scrollareaSomething->layout
but just
ui->verticalLayout_5->addwidget(xxx)

t0msk

@mrjj Again thank you very much!! :)