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tetrisgm
16b439876c
clamp_window_aspect fits the CLIENT area to the usable bounds, but a window is
client plus title bar and borders. On a display whose usable height it exactly
matched, the result was a window taller than the screen: client 5504x4128,
window 5550x4263, positioned at y = -112 and hanging off the top.
Deriving the decoration size first does not work either. SDL_GetWindowBordersSize
reports nothing useful before the window has been shown, so a post-creation
correction based on it silently did not apply -- the window stayed exactly as
wrong, which is worse than not trying.
The window manager already solves this exactly, so ask it: SDL_MaximizeWindow
fits the work area with decorations and taskbar included. Measured on a
7680x4320 panel, client area is now 7680x4039 against 5504x4128 before.
Only when the width was not explicitly chosen -- an explicit window_width is a
deliberate decision and is left alone.
Suggested by the user after two failed attempts at doing the arithmetic here.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
(cherry picked from commit d6d0946703)