58 lines
1.7 KiB
Zig
58 lines
1.7 KiB
Zig
// This file is part of river, a dynamic tiling wayland compositor.
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//
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// Copyright 2022 The River Developers
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 3.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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const Self = @This();
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const std = @import("std");
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const assert = std.debug.assert;
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const log = std.log.scoped(.keyboard);
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const wlr = @import("wlroots");
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items: [32]u32 = undefined,
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len: usize = 0,
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pub fn add(self: *Self, new: u32) void {
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for (self.items[0..self.len]) |item| if (new == item) return;
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comptime assert(@typeInfo(std.meta.fieldInfo(Self, .items).type).Array.len ==
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@typeInfo(std.meta.fieldInfo(wlr.Keyboard, .keycodes).type).Array.len);
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if (self.len == self.items.len) {
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log.err("KeycodeSet limit reached, code {d} omitted", .{new});
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return;
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}
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self.items[self.len] = new;
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self.len += 1;
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}
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pub fn remove(self: *Self, old: u32) bool {
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for (self.items[0..self.len], 0..) |item, idx| if (old == item) {
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self.len -= 1;
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if (self.len > 0) self.items[idx] = self.items[self.len];
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return true;
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};
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return false;
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}
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/// Removes other's contents from self (if present)
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pub fn subtract(self: *Self, other: Self) void {
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for (other.items[0..other.len]) |item| _ = self.remove(item);
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}
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