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const std = @import("std");
const builtin = @import("builtin");
const Allocator = std.mem.Allocator;
const Action = @import("ghostty.zig").Action;
const args = @import("args.zig");
const x11_color = @import("../terminal/main.zig").x11_color;
const vaxis = @import("vaxis");
const tui = @import("tui.zig");
pub const Options = struct {
pub fn deinit(self: Options) void {
_ = self;
}
/// If `true`, print without formatting even if printing to a tty
plain: bool = false,
/// Enables "-h" and "--help" to work.
pub fn help(self: Options) !void {
_ = self;
return Action.help_error;
}
};
/// The `list-colors` command is used to list all the named RGB colors in
/// Ghostty.
///
/// Flags:
///
/// * `--plain`: will disable formatting and make the output more
/// friendly for Unix tooling. This is default when not printing to a tty.
pub fn run(alloc: Allocator) !u8 {
var opts: Options = .{};
defer opts.deinit();
{
var iter = try args.argsIterator(alloc);
defer iter.deinit();
try args.parse(Options, alloc, &opts, &iter);
}
var keys: std.ArrayList([]const u8) = .empty;
defer keys.deinit(alloc);
for (x11_color.map.keys()) |key| try keys.append(alloc, key);
std.mem.sortUnstable([]const u8, keys.items, {}, struct {
fn lessThan(_: void, lhs: []const u8, rhs: []const u8) bool {
return std.ascii.orderIgnoreCase(lhs, rhs) == .lt;
}
}.lessThan);
// Despite being under the posix namespace, this also works on Windows as of zig 0.13.0
var stdout: std.fs.File = .stdout();
if (tui.can_pretty_print and !opts.plain and std.posix.isatty(stdout.handle)) {
var arena = std.heap.ArenaAllocator.init(alloc);
defer arena.deinit();
return prettyPrint(arena.allocator(), keys.items);
} else {
var buffer: [4096]u8 = undefined;
var stdout_writer = stdout.writer(&buffer);
const writer = &stdout_writer.interface;
for (keys.items) |name| {
const rgb = x11_color.map.get(name).?;
try writer.print("{s} = #{x:0>2}{x:0>2}{x:0>2}\n", .{
name,
rgb.r,
rgb.g,
rgb.b,
});
}
}
return 0;
}
fn prettyPrint(alloc: Allocator, keys: [][]const u8) !u8 {
// Set up vaxis
var buf: [1024]u8 = undefined;
var tty = try vaxis.Tty.init(&buf);
defer tty.deinit();
var vx = try vaxis.init(alloc, .{});
defer vx.deinit(alloc, tty.writer());
// We know we are ghostty, so let's enable mode 2027. Vaxis normally does this but you need an
// event loop to auto-enable it.
vx.caps.unicode = .unicode;
try tty.writer().writeAll(vaxis.ctlseqs.unicode_set);
defer tty.writer().writeAll(vaxis.ctlseqs.unicode_reset) catch {};
const winsize: vaxis.Winsize = switch (builtin.os.tag) {
// We use some default, it doesn't really matter for what
// we're doing because we don't do any wrapping.
.windows => .{
.rows = 24,
.cols = 120,
.x_pixel = 1024,
.y_pixel = 768,
},
else => try vaxis.Tty.getWinsize(tty.fd),
};
try vx.resize(alloc, tty.writer(), winsize);
const win = vx.window();
var max_name_len: usize = 0;
for (keys) |name| {
if (name.len > max_name_len) max_name_len = name.len;
}
// max name length plus " = #RRGGBB XX" plus " " gutter between columns
const column_size = max_name_len + 15;
// add two to take into account lack of gutter after last column
const columns: usize = @divFloor(win.width + 2, column_size);
var i: usize = 0;
const step = @divFloor(keys.len, columns) + 1;
while (i < step) : (i += 1) {
win.clear();
var result: vaxis.Window.PrintResult = .{ .col = 0, .row = 0, .overflow = false };
for (0..columns) |j| {
const k = i + (step * j);
if (k >= keys.len) continue;
const name = keys[k];
const rgb = x11_color.map.get(name).?;
const style1: vaxis.Style = .{
.fg = .{
.rgb = .{ rgb.r, rgb.g, rgb.b },
},
};
const style2: vaxis.Style = .{
.fg = .{
.rgb = .{ rgb.r, rgb.g, rgb.b },
},
.bg = .{
.rgb = .{ rgb.r, rgb.g, rgb.b },
},
};
// name of the color
result = win.printSegment(
.{ .text = name },
.{ .col_offset = result.col },
);
// push the color data to the end of the column
for (0..max_name_len - name.len) |_| {
result = win.printSegment(
.{ .text = " " },
.{ .col_offset = result.col },
);
}
result = win.printSegment(
.{ .text = " = " },
.{ .col_offset = result.col },
);
// rgb triple
result = win.printSegment(.{
.text = try std.fmt.allocPrint(
alloc,
"#{x:0>2}{x:0>2}{x:0>2}",
.{
rgb.r, rgb.g, rgb.b,
},
),
.style = style1,
}, .{ .col_offset = result.col });
result = win.printSegment(
.{ .text = " " },
.{ .col_offset = result.col },
);
// colored block
result = win.printSegment(
.{
.text = " ",
.style = style2,
},
.{ .col_offset = result.col },
);
// add the gutter if needed
if (j + 1 < columns) {
result = win.printSegment(
.{
.text = " ",
},
.{ .col_offset = result.col },
);
}
}
// clear the rest of the line
while (result.col != 0) {
result = win.printSegment(
.{
.text = " ",
},
.{ .col_offset = result.col },
);
}
// output the data
try vx.prettyPrint(tty.writer());
}
return 0;
}
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