~mil/mepo: src/util/utilprefs.zig - sourcehut git


                                                                                
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const std = @import("std");

const PrefValueEnum = enum { b, t, f, u };
const PrefValueUnion = union(PrefValueEnum) { b: bool, t: ?[:0]const u8, f: f64, u: u8 };
const PrefMapping = struct {
    name: []const u8,
    value: PrefValueUnion,
    desc: []const u8,
};

const n_prefs = 16;
pub var prefs_mapping: [n_prefs]PrefMapping = mapping: {
    var mapping: [n_prefs]PrefMapping = undefined;
    mapping[0] = .{
        .name = "debug_message_enabled",
        .value = .{ .b = true },
        .desc = "TODO",
    };
    mapping[1] = .{
        .name = "distance_unit_tf_km_mi",
        .value = .{ .b = false },
        .desc = "TODO",
    };
    mapping[2] = .{
        .name = "overlay_debugbar",
        .value = .{ .b = true },
        .desc = "TODO",
    };
    mapping[3] = .{
        .name = "help",
        .value = .{ .b = false },
        .desc = "TODO",
    };
    mapping[4] = .{
        .name = "overlay_pindetails",
        .value = .{ .b = true },
        .desc = "TODO",
    };
    mapping[5] = .{
        .name = "crosshair_size",
        .value = .{ .u = 15 },
        .desc = "TODO",
    };
    mapping[6] = .{
        .name = "drag_scale",
        .value = .{ .u = 2 },
        .desc = "TODO",
    };
    mapping[7] = .{
        .name = "fontsize_ui",
        .value = .{ .u = 20 },
        .desc = "TODO",
    };
    mapping[8] = .{
        .name = "zoom",
        .value = .{ .u = 14 },
        .desc = "TODO",
    };
    mapping[9] = .{
        .name = "debug_tiles",
        .value = .{ .b = false },
        .desc = "TODO",
    };
    mapping[10] = .{
        .name = "debug_stderr",
        .value = .{ .b = false },
        .desc = "TODO",
    };
    mapping[11] = .{
        .name = "tile_cache_max_n_transfers",
        .value = .{ .u = 20 },
        .desc = "TODO",
    };
    mapping[12] = .{
        .name = "tile_cache_expiry_seconds",
        .value = .{ .f = -1 },
        .desc = "TODO",
    };
    mapping[13] = .{
        .name = "tile_cache_network",
        .value = .{ .b = true },
        .desc = "TODO",
    };
    mapping[14] = .{
        .name = "tile_cache_dir",
        .value = .{ .t = null },
        .desc = "TODO",
    };
    mapping[15] = .{
        .name = "tile_cache_url",
        .value = .{ .t = null },
        .desc = "TODO",
    };
    break :mapping mapping;
};

pub fn get_u8(prefname: []const u8) f64 {
    for (prefs_mapping) |pref| {
        if (std.mem.eql(u8, pref.name, prefname)) return pref.value.u;
    }
    return 0;
}

pub fn get(prefname: []const u8) PrefValueUnion {
    for (prefs_mapping) |pref| {
        if (std.mem.eql(u8, pref.name, prefname)) {
            return pref.value;
        }
    }
    return .{ .b = false };
}

pub fn set_n(prefname: []const u8, value: f64) void {
    for (prefs_mapping) |*pref| {
        if (std.mem.eql(u8, pref.name, prefname)) {
            switch (pref.value) {
                .b => {
                    pref.value = .{ .b = value == 1 };
                },
                .u => {
                    pref.value = .{ .u = @floatToInt(u8, value) };
                },
                .f => {
                    pref.value = .{ .f = value };
                },
                .t => {},
            }
        }
    }
}

pub fn set_t(allocator: std.mem.Allocator, prefname: []const u8, value: []const u8) !void {
    for (prefs_mapping) |*pref| {
        if (std.mem.eql(u8, pref.name, prefname)) {
            switch (pref.value) {
                .t => {
                    if (pref.value.t) |heap_allocated_text| allocator.free(heap_allocated_text);
                    pref.value.t = try allocator.dupeZ(u8, value);
                },
                else => {}
            }
        }
    }
}

pub fn toggle_bool(prefname: []const u8) void {
    for (prefs_mapping) |*pref| {
        if (std.mem.eql(u8, pref.name, prefname)) {
            switch (pref.value) {
                .b => {
                    pref.value = .{ .b = !pref.value.b };
                },
                else => {},
            }
        }
    }
}