Win32: Refactor, split off and fix resize logic and DPI changes handling#178
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While this is better than #174 was, this is still a bit too large as it has quite a bit of internal refactorings as well. I'll put this back to a draft while I work on a "lite", bugfix-only version of this. |
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This PR refactors and splits off the logic that handles re-sizing and discovering/updating the window's DPI.
Some of that logic is split off into a new, low-level
Win32Windowtype, which only handles translating baseview types and assumptions intoWin32calls, separately from managing events or the window handler.This is part of the effort to split up #174 into smaller pieces.
This PR actually changes the logic, mainly by also splitting the internal
window_infointo two separate components,current_size(physical) andcurrent_scale_factor, which are instead updated independently during their respective events.Incidentally, this PR also fixes a few bugs:
WM_DPICHANGEevent triggering a window resize but not triggering a resize event in the window handler. This supersedes the work done in Fix WM_DPICHANGED not triggering Resized event #140.WM_DPICHANGEevent to use the OS-provided window dimensions and position, instead of computing our own dimensions and leaving the position as-is. This avoids a DPI-change loop due to the window constantly switching between two monitors as it's being dragged across them using the mouse.This has all been tested on my Windows 10 machine and works as expected.