Setting the Vulkan VkViewport leads to incomplete display of widgets.

[swhoro]

Version/Branch of Dear ImGui:

Version 1.90.9

Back-ends:

no backends

Compiler, OS:

ubuntu 20.04 + gcc 9.4.0

Full config/build information:

No response

Details:

I want the width of a button to fill the window. If I use the normal VkViewport, for example, create a glfw window with width=1280, height=720, set VkViewport{x=0,y=0,width=1280,height=720}, and set io.Displaysize={1280,720}, it display correctly. But if I want the glfw window has 100 padding on x (set VkViewport{x=100,y=0,width=1080,height=720} and io.Displaysize={1080,720}), then the right part of the button is not displayed

Screenshots/Video:

This is the image in which I do not set viewport and button has full width

This is the image I set viewport as I described above and right part of the button is cutted

Minimal, Complete and Verifiable Example code:

https://gist.github.com/swhoro/be2b72efad472558363b6f1debef46a2 This is almost the same as https://github.com/SaschaWillems/Vulkan/blob/master/examples/imgui/main.cpp except line 101, 380, 458, 758 and 761.