qtoolbutton/qpushbutton icon based on button's size

user4592357

yes i want the whole button to be the pattern, no matter what size the button is.
this is what i have now: https://ibb.co/FWmbDZX

mrjj

@user4592357
ah, im an idiot :)
You said tool button.
They come with fixed SizePoliy
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Just change to Preferred and they take all space.

user4592357

yes, that did. but now the "icons" aren't drawn on the buttons, but rather behind them (i could hardly see them, i saw a part of the icon behind the button).

mrjj

@user4592357
Can you show that effect ?
It wont scale the icon, but keep the size to IconSize.
Why dont just paint it directly ? ( inherit ToolButton and implement paintEvent )

mrjj

Hi
Like
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with a small custom class.
Test project
https://www.dropbox.com/s/62flul5h8aa5shj/PatternButton.zip?dl=0

How do you determine the pattern it should use ?
I just used variables inside, but if you generate the buttons you could just give
as parameters.

user4592357

oh, the problem was that i was calling QToolButton::paintEvent(event); in the end.
without it the patterns are being drawn.
but if i don't call it, well, my button isn't a button and cannot be pressed, etc.

mrjj

@user4592357
If you dont call QToolButton::paintEvent(event), the button
can still be pressed but it wont draw the effect.
But will send signal though.

You can just do it revers
call QToolButton::paintEvent(event) in top
then draw pattern with slightly smaller rect on top of what already drawn.
(i assume you need no texts)

user4592357

@mrjj
i managed to do that but i want to remove all spaces between buttons.
i've set setContentsMargins(0, 0, 0, 0) and setSpacing(0) for the layout.
this is what i have now: https://ibb.co/qYCm8vR
can't i remove those spaces?

mrjj

@user4592357
Hi
The tool buttons seems to reserve some pixels so there will be a small space.
alt text

The lower ones are Frames and both layouts have same settings so its fair to say
its the closest you get with ToolButtons as seen in top.

user4592357

@mrjj
hi,
when i add the buttons to a layout, they take up more space (just because it's available).
how can i make the buttons be in their minimum size in that layout?

p.s. this is what i have set for the button:

setMinimumSize(...);
setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);

mrjj

@user4592357
But would would be the minimum ?
You can set setMaximumSize of them if you want to limit it to
certain size. like 64x64. else layout makes them use the extra space.

user4592357

@mrjj
no i don't want max size...
i thought i could add a spacer at column 0 and last column, and set stretch factor to those columns

mrjj

@user4592357
im not sure i understand.
You do not want a max size for widgets but at same time they are not allowed to use
all the space ?
well yes spacers should compress to minimum

user4592357

yes maybe that's weird but that's what i need.
when i added the spacer at col 0, and then the rest of the widgets, only the first widget got added.

mrjj

@user4592357
Im not sure what you mean . Adding cant fail due to spacer.
did you set Minimum on the widgets as else they get compressed totally.

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with no Minimum set
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user4592357

i added spacers at both ends of hbox layout, but now the whole container widget gets larger instead of the buttons getting smaller (since there is a spacer around them)...

mrjj

@user4592357
Hi
Its impossible to guess at with no code or pictures.
If i do the same with Horz layout i get this
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