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Merge pull request #1394 from em-dash/configure-scroll-speed

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Configure scroll speed  #1378
This commit is contained in:
Mitchell Hashimoto
2024-01-27 21:24:05 -08:00
committed by GitHub
parent f65989fd92 5095c8f477
commit 06ff385e0c
2 changed files with 25 additions and 5 deletions
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18
src/Surface.zig
View File

@ -185,6 +185,7 @@ const DerivedConfig = struct {
desktop_notifications: bool,
mouse_interval: u64,
mouse_hide_while_typing: bool,
mouse_scroll_multiplier: f64,
mouse_shift_capture: configpkg.MouseShiftCapture,
macos_non_native_fullscreen: configpkg.NonNativeFullscreen,
macos_option_as_alt: configpkg.OptionAsAlt,
@ -241,6 +242,7 @@ const DerivedConfig = struct {
.desktop_notifications = config.@"desktop-notifications",
.mouse_interval = config.@"click-repeat-interval" * 1_000_000, // 500ms
.mouse_hide_while_typing = config.@"mouse-hide-while-typing",
.mouse_scroll_multiplier = config.@"mouse-scroll-multiplier",
.mouse_shift_capture = config.@"mouse-shift-capture",
.macos_non_native_fullscreen = config.@"macos-non-native-fullscreen",
.macos_option_as_alt = config.@"macos-option-as-alt",
@ -1523,7 +1525,9 @@ pub fn scrollCallback(
// Non-precision scrolling is easy to calculate.
if (!scroll_mods.precision) {
const y_sign: isize = if (yoff > 0) -1 else 1;
const y_delta_unsigned: usize = @max(@divFloor(self.grid_size.rows, 15), 1);
const grid_rows: f64 = @floatFromInt(self.grid_size.rows);
const y_delta_f64 = @round((grid_rows * self.config.mouse_scroll_multiplier) / 15.0);
const y_delta_unsigned: usize = @max(1, @as(usize, @intFromFloat(y_delta_f64)));
const y_delta: isize = y_sign * @as(isize, @intCast(y_delta_unsigned));
break :y .{ .sign = y_sign, .delta_unsigned = y_delta_unsigned, .delta = y_delta };
}
@ -1532,6 +1536,9 @@ pub fn scrollCallback(
// to build up a pending scroll amount if we're only scrolling by a
// tiny amount so that we can scroll by a full row when we have enough.
// Adjust our offset by the multiplier
const yoff_adjusted = yoff * self.config.mouse_scroll_multiplier;
// Add our previously saved pending amount to the offset to get the
// new offset value.
//
@ -1540,7 +1547,7 @@ pub fn scrollCallback(
// carefully document what we expect so this can work cross platform.
// Right now this isn't important because macOS is the only high-precision
// scroller.
const poff = self.mouse.pending_scroll_y + (yoff * -1);
const poff = self.mouse.pending_scroll_y + (yoff_adjusted * -1);
// If the new offset is less than a single unit of scroll, we save
// the new pending value and do not scroll yet.
@ -1555,7 +1562,7 @@ pub fn scrollCallback(
self.mouse.pending_scroll_y = poff - (amount * cell_size);
break :y .{
.sign = if (yoff > 0) 1 else -1,
.sign = if (yoff_adjusted > 0) 1 else -1,
.delta_unsigned = @intFromFloat(@abs(amount)),
.delta = @intFromFloat(amount),
};
@ -1565,12 +1572,13 @@ pub fn scrollCallback(
const x: ScrollAmount = if (xoff == 0) .{} else x: {
if (!scroll_mods.precision) {
const x_sign: isize = if (xoff < 0) -1 else 1;
const x_delta_unsigned: usize = 1;
const x_delta_unsigned: usize = @intFromFloat(@round(1 * self.config.mouse_scroll_multiplier));
const x_delta: isize = x_sign * @as(isize, @intCast(x_delta_unsigned));
break :x .{ .sign = x_sign, .delta_unsigned = x_delta_unsigned, .delta = x_delta };
}
const poff = self.mouse.pending_scroll_x + (xoff * -1);
const xoff_adjusted = xoff * self.config.mouse_scroll_multiplier;
const poff = self.mouse.pending_scroll_x + (xoff_adjusted * -1);
const cell_size: f64 = @floatFromInt(self.cell_size.width);
if (@abs(poff) < cell_size) {
self.mouse.pending_scroll_x = poff;

12
src/config/Config.zig
View File

@ -350,6 +350,15 @@ palette: Palette = .{},
/// requests otherwise, set this to `never`.
@"mouse-shift-capture": MouseShiftCapture = .false,
/// Multiplier for scrolling distance with the mouse wheel. Any value less
/// than 0.01 or greater than 10,000 will be clamped to the nearest valid
/// value.
///
/// A value of "1" (default) scrolls te default amount. A value of "2" scrolls
/// double the default amount. A value of "0.5" scrolls half the default amount.
/// Et cetera.
@"mouse-scroll-multiplier": f64 = 1.0,
/// The opacity level (opposite of transparency) of the background. A value of
/// 1 is fully opaque and a value of 0 is fully transparent. A value less than 0
/// or greater than 1 will be clamped to the nearest valid value.
@ -1804,6 +1813,9 @@ pub fn finalize(self: *Config) !void {
self.@"click-repeat-interval" = internal_os.clickInterval() orelse 500;
}
// Clamp our mouse scroll multiplier
self.@"mouse-scroll-multiplier" = @min(10_000.0, @max(0.01, self.@"mouse-scroll-multiplier"));
// Clamp our split opacity
self.@"unfocused-split-opacity" = @min(1.0, @max(0.15, self.@"unfocused-split-opacity"));