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src/state.rs: Add comments related to shape-selection

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Part-of: <https://gitlab.gnome.org/World/Phosh/squeekboard/-/merge_requests/645>
This commit is contained in:
MoonlightWave-12
2024-04-21 01:47:50 +02:00
committed by Marge Bot
parent 7308eeefe1
commit 2eb06ae350
1 changed files with 6 additions and 2 deletions
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8
src/state.rs
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@ -385,7 +385,9 @@ Outcome:
let ideal_height = IDEAL_TARGET_SIZE * ROW_COUNT as i32;
let ideal_height_px = (ideal_height * density).ceil().0 as u32;
// Changes the point at which the layout-shape is changed to the wide shape
// Changes the point at which the layout-shape is changed to the wide shape.
// Slightly higher aspect-ratio (16:5.1) than the expected aspect-ratio of the wide shape (16:5).
// 5.1/16 = 1/3.14 = 172/540 (rounded, height / width)
let max_wide_height = Rational {
numerator: 172,
denominator: 540,
@ -396,6 +398,8 @@ Outcome:
};
// Reduce height to match what the layout can fill.
// For this, we need to guess if normal or wide will be picked.
// Example: When the height of Squeekboard is 172 pixels and the width of the display
// is at least 540 pixels, then the wide shape will be chosen.
// This must match `eek_gtk_keyboard.c::get_type`.
// TODO: query layout database and choose one directly
let (arrangement, height_as_widths) = {
@ -410,7 +414,7 @@ Outcome:
max_wide_height,
)}
};
// Set the height of the space available for Squeekboard
let height
= cmp::min(
ideal_height_px,