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feat: dim modal backgrounds

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This commit is contained in:
CJ van den Berg 2024-10-19 20:34:15 +02:00
parent 63734ef81b
commit 2efd3dff2e
Signed by: neurocyte
GPG key ID: 8EB1E1BB660E3FB9
2 changed files with 31 additions and 2 deletions
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13
src/renderer/vaxis/Cell.zig
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@ -53,3 +53,16 @@ pub fn columns(self: *const Cell) usize {
// return if (self.cell.char.width == 0) self.window.gwidth(self.cell.char.grapheme) else self.cell.char.width; // FIXME?
return self.cell.char.width;
}
pub fn dim(self: *Cell, alpha: u8) void {
self.cell.style.fg = apply_alpha_value(self.cell.style.fg, alpha);
self.cell.style.bg = apply_alpha_value(self.cell.style.bg, alpha);
}
fn apply_alpha_value(c: vaxis.Cell.Color, a: u8) vaxis.Cell.Color {
var rgb = c.rgb;
rgb[0] = @intCast((@as(u32, @intCast(rgb[0])) * a) / 256);
rgb[1] = @intCast((@as(u32, @intCast(rgb[1])) * a) / 256);
rgb[2] = @intCast((@as(u32, @intCast(rgb[2])) * a) / 256);
return .{ .rgb = rgb };
}