gui + Hidpi design improvements about flameshot HOT 12 OPEN

The "Open With" widget seems to have a problem as it should show the icons of every app.
I haven't tested Flameshot in hidpi screens as I don't own one myself but this really needs a fix.
I'm having exams soon but I'll be solving this when I have time.
I will need someone to test the fixes.

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Ping me if you need to test hidpi fixes.
Good luck for the exams

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Qt does not support HiDPI scaling until 5.6. You can try to use the environment variable QT_SCALE_FACTOR=2 to run flameshot scaled. Further you can use QT_AUTO_SCREEN_SCALE_FACTOR=1 to enable automatic scaling, based on the pixel density of the monitor.
Reference https://albertlauncher.github.io/docs/faq/

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The problem here are the hardcoded sizes for the custom widgets. I've done some work to make it scale but it's not finished yet. @axelmeunier Could you test if the size of the icons inside the buttons look natural?

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@lupoDharkael hi, is this (or similar) HiDPI support being worked on? I can't seem to control scaling with QT_SCALE_FACTOR at all in my Gnome-based setup...

Please let me know if any testing needs to be done - would like to help

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On Plasma the icons are very pixelated on HiDPI.

cc @guoyunhe

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On Plasma the icons are very pixelated on HiDPI.

cc @guoyunhe

i have same problem
but i see one thing - in first run app icons was nice
but after icons gona pixelated
and also my screen setting set to 150% zoom

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@ZetaoYang you may be aware of this already, but QT_SCALE_FACTOR=2 and similar only work launhcing flameshot as 'flameshot'.

If you use

'flameshot gui'

to launch the program, the env vars are entirely ignored.

Should I open an issue?

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@Zeioth I tried on Manjaro KDE plasma based on the KDE user manual and rebooted the computer after that (logging out was suffice but I wanted to leave nothing to chance). I could not reproduce it. Regardless of either of the following approaches, all the icons were with the same scale:

• flameshot and then clicking on the tray icon
• flameshot gui

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I had a similar problem on Ubuntu 20.04 with scaling set to 200%. If the application was opened any time after the OS had started, then all was well. But when starting flameshot on startup, then the icons during capture, the configuration panel etc. were really small. I have fixed the problem by using this command in the Startup Application Preferences app: bash -c "sleep 5 && flameshot"

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@va-it it seems the scaling on your Ubuntu (assuming it is Gnome?) happens way after the startup programs are started (which is weird to me as logically they should start after the window manager is fully loaded).

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QT_SCALE_FACTOR=2 works for me

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