Window autoresize on a single axis

[arnaud-neny]

Version: 1.89.5 Branch: docking

Back-end/Renderer/Compiler/OS

Back-ends: imgui_impl_win32.cpp + imgui_impl_dx12.cpp Compiler: VS 2022 Operating Windows 10

My Issue/Question:

I am trying to implement some windows that are able to autoresize horizontally but I want to resize these manually on the vertical axis. I have managed to make it work doing this:

• removed ImGuiWindowFlags_AlwaysAutoResize on the window Begin
• do in the window scope AutoFitFramesX = 2;
• but mostly, I have to change the early exit condition of UpdateWindowManualResize if ((flags & ImGuiWindowFlags_NoResize) || (flags & ImGuiWindowFlags_AlwaysAutoResize) || (window->AutoFitFramesX > 0 && window->AutoFitFramesY > 0))

My question is: could this modified condition have any side effect (or is it a legit fix)?

[dimateos]

Maybe you could use BeginGroup/EndGroup and then GetItemRectSize to set SetWindowSize. To keep the same Y read it from GetWindowSize or GetWindowHeight. It would be a different solution though.

Did not have any time to test it so just throwing ideas...

[arnaud-neny]

Maybe you could use BeginGroup/EndGroup and then GetItemRectSize to set SetWindowSize. To keep the same Y read it from GetWindowSize or GetWindowHeight. It would be a different solution though.

Did not have any time to test it so just throwing ideas...

The point is to be able to resize the Y axis with the mouse, not within the code.