В фреймворке PyQt (и PySide тоже) часто встречается настройка чего-либо с помощью так называемых флагов.
widget.setWindowFlags(Qt.Window)
Взаимодействие нескольких флагов делается с помощью бинарных (или побитовых) операторов.
Несколько флагов можно указать с помощью оператора "|"
list_item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsEnabled)
исключить флаг из уже имеющегося набора можно так
list_item.setFlags(list_item.flags() ^ Qt.ItemIsEnabled)
Добавить новый флаг к имеющимся можно так
list_item.setFlags(list_item.flags() | Qt.ItemIsEnabled)
А проверка наличия делается так
is_enabled = item.flags() & Qt.ItemIsEnabled > 0
Почему именно так? Всё дело в том как именно работают побитовые операторы. Но об этом в следующем посте.
#qt
Weekend
Let's begin,
Feet on feet
Following each other
Across the room,
Like a fleet
Unrequited and washed up
At shores
Unreachable and silent dead
Now pace up,
Reach my hand
Sigh
And burn
With violent fumes,
Find me a blink away
In carpeted elevators
Locked
In gaze
Finally,
Race me to the longest yard
At 3
Past midnight,
Rest on this hammock
Of tacit fears
And inhibitions,
Ask me
If I know myself,
I'll pause
And say
More each day
When I'm with you.
#review#poetry#ap
I've been thinking of life
And it was raining season
Life is worse than the hell
Why? Couldn't get reason
How and when will i get rid
From this unbearable pain
People can shouting loudly
I could not cry in the rain
#ap#review#shortpoem
Tanka : 57577
I'm alone at my place
Perhaps, someone will come here
A beautiful lady, and
Will take my hand in her hand
Maybe will say I'm with you.
#ap#review#tanka
Tanka : 57577
If I do any crime!
If I hurt you more before:
Will you forgive me?
Like you forgave me before;
I like you because of these.
#ap#tanka#review
I sniffed our wilted pink roses
When thy old letters, I dupp'd
Haue not rights to touch thou
To hug, To kiss thou forehead
#Ap#quatrain#review
Words : Old/Middle into Morden English
Thy - your
dupp'd -opened
Haue/Hast not - have not
Thou - you (subject)
• Quatrain •
The world can't see inside's pain
And, tears are hidden in the rain
Even if the world calls me stupid
But, Her voice affects like music
#ap#quatrain#review
#NATO
Jens #Stoltenberg (#Ap|S&D): “Onorato dalla decisione degli Stati NATO di estendere il mio mandato come Segretario Generale fino al 1° ottobre 2024. Il legame transatlantico tra Europa e Nord America ha garantito la nostra libertà e sicurezza per quasi 75 anni e, in un mondo più pericoloso, la nostra Alleanza è più importante che mai.”
@OsservatorioEsteri