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GUI Scaling broken for CLI Config and Projects #1214

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braunms opened this issue Jul 19, 2023 · 0 comments

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bug

Contributor

braunms commented Jul 19, 2023

GUI scaling is ignored when set via mmSetCliOption("guiscale", "1.5") or via mmSetGUIScale(1.500000) in a projcet file.

The first scale event comes from the config, the second from the project file and then a third one comes from OpenGL_GLFW_Service::glfw_onWindowContentScale_func, which then overwrites the value with 1again (at the default resolution).
This issue has been introduced with the feature "automatic gui scale based on monitor settings"
https://github.com/UniStuttgart-VISUS/megamol/blame/2eee5ee99e9b4f17e6ff742575a9202743523b5f/frontend/services/gui/src/GUI_Service.cpp#L227

GUI scaling works via GUI log console and GUI menu.

Solution

Reorder the scaling events depending on priority:

GLFW scaling for automatic gui scale based on monitor settings
CLI option
project file
... but is this even possible??

Steps To Reproduce
Place mmSetGUIScale(1.500000) in a project file and start MegaMol. For default resolution 1920x1080 GUI scaling is still 1.

Expected behavior
GUI scaling should be 1.5

Additional Context
n.a.

braunms added the bug label

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