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windows: Allow horizontal scroll with shift + scroll (#14147)

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Release Notes:

- Horizontally scroll when holding down the Shift key and using the
scroll wheel


https://github.com/zed-industries/zed/assets/95680272/e6480f9c-0f6a-4f47-b700-a3657a75716f
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Nathaniel 2024-07-26 01:44:35 +08:00 committed by GitHub
parent 201db23b58
commit ab3c9f0678
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1 changed files with 15 additions and 5 deletions
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20
crates/gpui/src/platform/windows/events.rs
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@ -491,13 +491,17 @@ fn handle_mouse_wheel_msg(
lparam: LPARAM,
state_ptr: Rc<WindowsWindowStatePtr>,
) -> Option<isize> {
let modifiers = current_modifiers();
let mut lock = state_ptr.state.borrow_mut();
if let Some(mut callback) = lock.callbacks.input.take() {
let scale_factor = lock.scale_factor;
let wheel_scroll_lines = lock.system_settings.mouse_wheel_settings.wheel_scroll_lines;
let wheel_scroll_amount = match modifiers.shift {
true => lock.system_settings.mouse_wheel_settings.wheel_scroll_chars,
false => lock.system_settings.mouse_wheel_settings.wheel_scroll_lines,
};
drop(lock);
let wheel_distance =
(wparam.signed_hiword() as f32 / WHEEL_DELTA as f32) * wheel_scroll_lines as f32;
(wparam.signed_hiword() as f32 / WHEEL_DELTA as f32) * wheel_scroll_amount as f32;
let mut cursor_point = POINT {
x: lparam.signed_loword().into(),
y: lparam.signed_hiword().into(),
@ -505,9 +509,15 @@ fn handle_mouse_wheel_msg(
unsafe { ScreenToClient(handle, &mut cursor_point).ok().log_err() };
let event = ScrollWheelEvent {
position: logical_point(cursor_point.x as f32, cursor_point.y as f32, scale_factor),
delta: ScrollDelta::Lines(Point {
x: 0.0,
y: wheel_distance,
delta: ScrollDelta::Lines(match modifiers.shift {
true => Point {
x: wheel_distance,
y: 0.0,
},
false => Point {
y: wheel_distance,
x: 0.0,
},
}),
modifiers: current_modifiers(),
touch_phase: TouchPhase::Moved,