Add update function for Label

Signed-off-by: AnErrupTion <anerruption@disroot.org>

src/main.zig

@@ -33,7 +33,7 @@ const Animation = @import("tui/Animation.zig");
 const Position = @import("tui/Position.zig");
 const CenteredBox = @import("tui/components/CenteredBox.zig");
 const InfoLine = @import("tui/components/InfoLine.zig");
-const Label = @import("tui/components/Label.zig");
+const label = @import("tui/components/label.zig");
 const Session = @import("tui/components/Session.zig");
 const Text = @import("tui/components/Text.zig");
 const UserList = @import("tui/components/UserList.zig");
@@ -41,6 +41,8 @@ const TerminalBuffer = @import("tui/TerminalBuffer.zig");
 const termbox = TerminalBuffer.termbox;
 
 const StringList = std.ArrayListUnmanaged([]const u8);
+
+const Label = label.Label;
 const ly_version_str = "Ly version " ++ build_options.version;
 
 var session_pid: std.posix.pid_t = -1;
@@ -62,6 +64,7 @@ fn ttyControlTransferSignalHandler(_: c_int) callconv(.c) void {
     TerminalBuffer.shutdownStatic();
 }
 
+const NoType = struct {};
 const UiState = struct {
     auth_fails: u64,
     update: bool,
@@ -69,21 +72,20 @@ const UiState = struct {
     labels_max_length: usize,
     animation_timed_out: bool,
     animation: *?Animation,
-    can_draw_battery: bool,
+    shutdown_label: *Label(NoType),
-    shutdown_label: *Label,
+    restart_label: *Label(NoType),
-    restart_label: *Label,
+    sleep_label: *Label(NoType),
-    sleep_label: *Label,
+    hibernate_label: *Label(NoType),
-    hibernate_label: *Label,
+    brightness_down_label: *Label(NoType),
-    brightness_down_label: *Label,
+    brightness_up_label: *Label(NoType),
-    brightness_up_label: *Label,
+    numlock_label: *Label(*UiState),
-    numlock_label: *Label,
+    capslock_label: *Label(*UiState),
-    capslock_label: *Label,
+    battery_label: *Label(*UiState),
-    battery_label: *Label,
+    clock_label: *Label(*UiState),
-    clock_label: *Label,
+    session_specifier_label: *Label(*UiState),
-    session_specifier_label: *Label,
+    login_label: *Label(NoType),
-    login_label: *Label,
+    password_label: *Label(NoType),
-    password_label: *Label,
+    version_label: *Label(NoType),
-    version_label: *Label,
     box: *CenteredBox,
     info_line: *InfoLine,
     animate: bool,
@@ -93,17 +95,12 @@ const UiState = struct {
     password: *Text,
     active_input: enums.Input,
     insert_mode: bool,
-    can_draw_clock: bool,
-    shutdown_len: u8,
-    restart_len: u8,
-    sleep_len: u8,
-    hibernate_len: u8,
-    brightness_down_len: u8,
-    brightness_up_len: u8,
-    can_get_lock_state: bool,
     edge_margin: Position,
-    hide_key_hints: bool,
+    config: Config,
-    uses_clock: bool,
+    lang: Lang,
+    log_file: *LogFile,
+    battery_buf: [16:0]u8,
+    clock_buf: [64:0]u8,
 };
 
 pub fn main() !void {
@@ -339,51 +336,57 @@ pub fn main() !void {
     std.posix.sigaction(std.posix.SIG.TERM, &act, null);
 
     // Initialize components
-    var shutdown_label = Label.init(
+    var shutdown_label = Label(NoType).init(
         "",
         null,
         buffer.fg,
         buffer.bg,
+        null,
     );
     defer shutdown_label.deinit(allocator);
 
-    var restart_label = Label.init(
+    var restart_label = Label(NoType).init(
         "",
         null,
         buffer.fg,
         buffer.bg,
+        null,
     );
     defer restart_label.deinit(allocator);
 
-    var sleep_label = Label.init(
+    var sleep_label = Label(NoType).init(
         "",
         null,
         buffer.fg,
         buffer.bg,
+        null,
     );
     defer sleep_label.deinit(allocator);
 
-    var hibernate_label = Label.init(
+    var hibernate_label = Label(NoType).init(
         "",
         null,
         buffer.fg,
         buffer.bg,
+        null,
     );
     defer hibernate_label.deinit(allocator);
 
-    var brightness_down_label = Label.init(
+    var brightness_down_label = Label(NoType).init(
         "",
         null,
         buffer.fg,
         buffer.bg,
+        null,
     );
     defer brightness_down_label.deinit(allocator);
 
-    var brightness_up_label = Label.init(
+    var brightness_up_label = Label(NoType).init(
         "",
         null,
         buffer.fg,
         buffer.bg,
+        null,
     );
     defer brightness_up_label.deinit(allocator);
 
@@ -428,35 +431,39 @@ pub fn main() !void {
         }
     }
 
-    var numlock_label = Label.init(
+    var numlock_label = Label(*UiState).init(
-        lang.numlock,
+        "",
         null,
         buffer.fg,
         buffer.bg,
+        &updateNumlock,
     );
     defer numlock_label.deinit(null);
 
-    var capslock_label = Label.init(
+    var capslock_label = Label(*UiState).init(
-        lang.capslock,
+        "",
         null,
         buffer.fg,
         buffer.bg,
+        &updateCapslock,
     );
     defer capslock_label.deinit(null);
 
-    var battery_label = Label.init(
+    var battery_label = Label(*UiState).init(
         "",
         null,
         buffer.fg,
         buffer.bg,
+        &updateBattery,
     );
     defer battery_label.deinit(null);
 
-    var clock_label = Label.init(
+    var clock_label = Label(*UiState).init(
         "",
         null,
         buffer.fg,
         buffer.bg,
+        &updateClock,
     );
     defer clock_label.deinit(null);
 
@@ -525,11 +532,12 @@ pub fn main() !void {
 
     var login: UserList = undefined;
 
-    var session_specifier_label = Label.init(
+    var session_specifier_label = Label(*UiState).init(
         "",
         null,
         buffer.fg,
         buffer.bg,
+        &updateSessionSpecifier,
     );
     defer session_specifier_label.deinit(null);
 
@@ -544,11 +552,12 @@ pub fn main() !void {
     );
     defer session.deinit();
 
-    var login_label = Label.init(
+    var login_label = Label(NoType).init(
         lang.login,
         null,
         buffer.fg,
         buffer.bg,
+        null,
     );
     defer login_label.deinit(null);
 
@@ -624,11 +633,12 @@ pub fn main() !void {
         try log_file.err("sys", "no users found", .{});
     }
 
-    var password_label = Label.init(
+    var password_label = Label(NoType).init(
         lang.password,
         null,
         buffer.fg,
         buffer.bg,
+        null,
     );
     defer password_label.deinit(null);
 
@@ -643,11 +653,12 @@ pub fn main() !void {
     );
     defer password.deinit();
 
-    var version_label = Label.init(
+    var version_label = Label(NoType).init(
         ly_version_str,
         null,
         buffer.fg,
         buffer.bg,
+        null,
     );
     defer version_label.deinit(null);
 
@@ -688,7 +699,6 @@ pub fn main() !void {
         .labels_max_length = labels_max_length,
         .animation_timed_out = false,
         .animation = &animation,
-        .can_draw_battery = true,
         .shutdown_label = &shutdown_label,
         .restart_label = &restart_label,
         .sleep_label = &sleep_label,
@@ -712,20 +722,15 @@ pub fn main() !void {
         .password = &password,
         .active_input = config.default_input,
         .insert_mode = !config.vi_mode or config.vi_default_mode == .insert,
-        .can_draw_clock = true,
-        .shutdown_len = try TerminalBuffer.strWidth(lang.shutdown),
-        .restart_len = try TerminalBuffer.strWidth(lang.restart),
-        .sleep_len = try TerminalBuffer.strWidth(lang.sleep),
-        .hibernate_len = try TerminalBuffer.strWidth(lang.hibernate),
-        .brightness_down_len = try TerminalBuffer.strWidth(lang.brightness_down),
-        .brightness_up_len = try TerminalBuffer.strWidth(lang.brightness_up),
-        .can_get_lock_state = true,
         .edge_margin = Position.init(
             config.edge_margin,
             config.edge_margin,
         ),
-        .hide_key_hints = config.hide_key_hints,
+        .config = config,
-        .uses_clock = config.clock != null,
+        .lang = lang,
+        .log_file = &log_file,
+        .battery_buf = undefined,
+        .clock_buf = undefined,
     };
 
     // Load last saved username and desktop selection, if any
@@ -753,6 +758,7 @@ pub fn main() !void {
     }
 
     // Position components
+    try updateComponents(&state);
     positionComponents(&state);
 
     switch (state.active_input) {
@@ -857,7 +863,8 @@ pub fn main() !void {
         }
 
         if (state.update) {
-            if (!try drawUi(config, lang, &log_file, &state)) continue;
+            try updateComponents(&state);
+            if (!try drawUi(&log_file, &state)) continue;
         }
 
         var timeout: i32 = -1;
@@ -1188,9 +1195,26 @@ pub fn main() !void {
     }
 }
 
-fn drawUi(config: Config, lang: Lang, log_file: *LogFile, state: *UiState) !bool {
+fn updateComponents(state: *UiState) !void {
+    if (state.config.battery_id != null) {
+        try state.battery_label.update(state);
+    }
+
+    if (state.config.clock != null) {
+        try state.clock_label.update(state);
+    }
+
+    try state.session_specifier_label.update(state);
+
+    if (!state.config.hide_keyboard_locks) {
+        try state.numlock_label.update(state);
+        try state.capslock_label.update(state);
+    }
+}
+
+fn drawUi(log_file: *LogFile, state: *UiState) !bool {
     // If the user entered a wrong password 10 times in a row, play a cascade animation, else update normally
-    if (config.auth_fails > 0 and state.auth_fails >= config.auth_fails) {
+    if (state.config.auth_fails > 0 and state.auth_fails >= state.config.auth_fails) {
         std.Thread.sleep(std.time.ns_per_ms * 10);
         state.update = state.buffer.cascade();
 
@@ -1207,36 +1231,19 @@ fn drawUi(config: Config, lang: Lang, log_file: *LogFile, state: *UiState) !bool
 
     if (!state.animation_timed_out) if (state.animation.*) |*a| a.draw();
 
-    if (!config.hide_version_string) state.version_label.draw();
+    if (!state.config.hide_version_string) state.version_label.draw();
 
-    if (config.battery_id) |id| draw_battery: {
+    if (state.config.battery_id != null) state.battery_label.draw();
-        if (!state.can_draw_battery) break :draw_battery;
 
-        const battery_percentage = getBatteryPercentage(id) catch |err| {
+    if (state.config.bigclock != .none and state.box.height + (bigclock.HEIGHT + 2) * 2 < state.buffer.height) {
-            try log_file.err("sys", "failed to get battery percentage: {s}", .{@errorName(err)});
-            try state.info_line.addMessage(lang.err_battery, config.error_bg, config.error_fg);
-            state.can_draw_battery = false;
-            break :draw_battery;
-        };
-
-        var battery_buf: [16:0]u8 = undefined;
-        state.battery_label.setTextBuf(
-            &battery_buf,
-            "BAT: {d}%",
-            .{battery_percentage},
-        ) catch break :draw_battery;
-        state.battery_label.draw();
-    }
-
-    if (config.bigclock != .none and state.box.height + (bigclock.HEIGHT + 2) * 2 < state.buffer.height) {
         var format_buf: [16:0]u8 = undefined;
         var clock_buf: [32:0]u8 = undefined;
         // We need the slice/c-string returned by `bufPrintZ`.
         const format = try std.fmt.bufPrintZ(&format_buf, "{s}{s}{s}{s}", .{
-            if (config.bigclock_12hr) "%I" else "%H",
+            if (state.config.bigclock_12hr) "%I" else "%H",
             ":%M",
-            if (config.bigclock_seconds) ":%S" else "",
+            if (state.config.bigclock_seconds) ":%S" else "",
-            if (config.bigclock_12hr) "%P" else "",
+            if (state.config.bigclock_12hr) "%P" else "",
         });
         const xo = state.buffer.width / 2 - @min(state.buffer.width, (format.len * (bigclock.WIDTH + 1))) / 2;
         const yo = (state.buffer.height - state.box.height) / 2 - bigclock.HEIGHT - 2;
@@ -1245,7 +1252,7 @@ fn drawUi(config: Config, lang: Lang, log_file: *LogFile, state: *UiState) !bool
 
         for (clock_str, 0..) |c, i| {
             // TODO: Show error
-            const clock_cell = try bigclock.clockCell(state.animate, c, state.buffer.fg, state.buffer.bg, config.bigclock);
+            const clock_cell = try bigclock.clockCell(state.animate, c, state.buffer.fg, state.buffer.bg, state.config.bigclock);
             bigclock.alphaBlit(xo + i * (bigclock.WIDTH + 1), yo, state.buffer.width, state.buffer.height, clock_cell);
         }
     }
@@ -1262,37 +1269,20 @@ fn drawUi(config: Config, lang: Lang, log_file: *LogFile, state: *UiState) !bool
         .session => state.session.label.handle(null, state.insert_mode),
         .login => state.login.label.handle(null, state.insert_mode),
         .password => state.password.handle(null, state.insert_mode) catch |err| {
-            try state.info_line.addMessage(lang.err_alloc, config.error_bg, config.error_fg);
+            try state.info_line.addMessage(state.lang.err_alloc, state.config.error_bg, state.config.error_fg);
             try log_file.err("tui", "failed to handle password input: {s}", .{@errorName(err)});
         },
     }
 
-    if (config.clock) |clock| draw_clock: {
+    if (state.config.clock != null) state.clock_label.draw();
-        if (!state.can_draw_clock) break :draw_clock;
 
-        var clock_buf: [64:0]u8 = undefined;
-        const clock_str = interop.timeAsString(&clock_buf, clock);
-
-        if (clock_str.len == 0) {
-            try state.info_line.addMessage(lang.err_clock_too_long, config.error_bg, config.error_fg);
-            state.can_draw_clock = false;
-            try log_file.err("tui", "clock string too long", .{});
-            break :draw_clock;
-        }
-
-        state.clock_label.setText(clock_str);
-        state.clock_label.draw();
-    }
-
-    const env = state.session.label.list.items[state.session.label.current];
-    state.session_specifier_label.setText(env.environment.specifier);
     state.session_specifier_label.draw();
     state.login_label.draw();
     state.password_label.draw();
 
     state.info_line.label.draw();
 
-    if (!config.hide_key_hints) {
+    if (!state.config.hide_key_hints) {
         state.shutdown_label.draw();
         state.restart_label.draw();
         state.sleep_label.draw();
@@ -1301,20 +1291,13 @@ fn drawUi(config: Config, lang: Lang, log_file: *LogFile, state: *UiState) !bool
         state.brightness_up_label.draw();
     }
 
-    if (config.vi_mode) {
+    if (state.config.vi_mode) {
-        state.box.bottom_title = if (state.insert_mode) lang.insert else lang.normal;
+        state.box.bottom_title = if (state.insert_mode) state.lang.insert else state.lang.normal;
     }
 
-    if (!config.hide_keyboard_locks and state.can_get_lock_state) draw_lock_state: {
+    if (!state.config.hide_keyboard_locks) {
-        const lock_state = interop.getLockState() catch |err| {
+        state.numlock_label.draw();
-            try state.info_line.addMessage(lang.err_lock_state, config.error_bg, config.error_fg);
+        state.capslock_label.draw();
-            state.can_get_lock_state = false;
-            try log_file.err("sys", "failed to get lock state: {s}", .{@errorName(err)});
-            break :draw_lock_state;
-        };
-
-        if (lock_state.numlock) state.numlock_label.draw();
-        if (lock_state.capslock) state.capslock_label.draw();
     }
 
     state.session.label.draw();
@@ -1325,8 +1308,67 @@ fn drawUi(config: Config, lang: Lang, log_file: *LogFile, state: *UiState) !bool
     return true;
 }
 
+fn updateNumlock(self: *Label(*UiState), state: *UiState) !void {
+    const lock_state = interop.getLockState() catch |err| {
+        self.update_fn = null;
+        try state.info_line.addMessage(state.lang.err_lock_state, state.config.error_bg, state.config.error_fg);
+        try state.log_file.err("sys", "failed to get lock state: {s}", .{@errorName(err)});
+        return;
+    };
+
+    self.setText(if (lock_state.numlock) state.lang.numlock else "");
+}
+
+fn updateCapslock(self: *Label(*UiState), state: *UiState) !void {
+    const lock_state = interop.getLockState() catch |err| {
+        self.update_fn = null;
+        try state.info_line.addMessage(state.lang.err_lock_state, state.config.error_bg, state.config.error_fg);
+        try state.log_file.err("sys", "failed to get lock state: {s}", .{@errorName(err)});
+        return;
+    };
+
+    self.setText(if (lock_state.capslock) state.lang.capslock else "");
+}
+
+fn updateBattery(self: *Label(*UiState), state: *UiState) !void {
+    if (state.config.battery_id) |id| {
+        const battery_percentage = getBatteryPercentage(id) catch |err| {
+            self.update_fn = null;
+            try state.log_file.err("sys", "failed to get battery percentage: {s}", .{@errorName(err)});
+            try state.info_line.addMessage(state.lang.err_battery, state.config.error_bg, state.config.error_fg);
+            return;
+        };
+
+        try self.setTextBuf(
+            &state.battery_buf,
+            "BAT: {d}%",
+            .{battery_percentage},
+        );
+    }
+}
+
+fn updateClock(self: *Label(*UiState), state: *UiState) !void {
+    if (state.config.clock) |clock| draw_clock: {
+        const clock_str = interop.timeAsString(&state.clock_buf, clock);
+
+        if (clock_str.len == 0) {
+            self.update_fn = null;
+            try state.info_line.addMessage(state.lang.err_clock_too_long, state.config.error_bg, state.config.error_fg);
+            try state.log_file.err("tui", "clock string too long", .{});
+            break :draw_clock;
+        }
+
+        self.setText(clock_str);
+    }
+}
+
+fn updateSessionSpecifier(self: *Label(*UiState), state: *UiState) !void {
+    const env = state.session.label.list.items[state.session.label.current];
+    self.setText(env.environment.specifier);
+}
+
 fn positionComponents(state: *UiState) void {
-    if (!state.hide_key_hints) {
+    if (!state.config.hide_key_hints) {
         state.shutdown_label.positionX(state.edge_margin
             .add(TerminalBuffer.START_POSITION));
         state.restart_label.positionX(state.shutdown_label
@@ -1348,9 +1390,8 @@ fn positionComponents(state: *UiState) void {
 
     state.battery_label.positionXY(state.edge_margin
         .add(TerminalBuffer.START_POSITION)
-        .addYFromIf(state.shutdown_label.childrenPosition(), !state.hide_key_hints)
+        .addYFromIf(state.shutdown_label.childrenPosition(), !state.config.hide_key_hints)
-        .removeYFromIf(state.edge_margin, !state.hide_key_hints));
+        .removeYFromIf(state.edge_margin, !state.config.hide_key_hints));
-    // TODO: Fix not showing on first try (with separate update function)
     state.clock_label.positionXY(state.edge_margin
         .add(TerminalBuffer.START_POSITION)
         .invertX(state.buffer.width)
@@ -1358,8 +1399,8 @@ fn positionComponents(state: *UiState) void {
 
     state.numlock_label.positionX(state.edge_margin
         .add(TerminalBuffer.START_POSITION)
-        .addYFromIf(state.clock_label.childrenPosition(), state.uses_clock)
+        .addYFromIf(state.clock_label.childrenPosition(), state.config.clock != null)
-        .removeYFromIf(state.edge_margin, state.uses_clock)
+        .removeYFromIf(state.edge_margin, state.config.clock != null)
         .invertX(state.buffer.width)
         .removeXIf(state.numlock_label.text.len, state.buffer.width > state.numlock_label.text.len + state.edge_margin.x));
     state.capslock_label.positionX(state.numlock_label
@@ -1371,7 +1412,6 @@ fn positionComponents(state: *UiState) void {
     state.info_line.label.positionY(state.box
         .childrenPosition());
 
-    // TODO: Same as above
     state.session_specifier_label.positionX(state.info_line.label
         .childrenPosition()
         .addY(1));

src/tui/components/Label.zig

@@ -1,109 +0,0 @@
-const std = @import("std");
-const Allocator = std.mem.Allocator;
-
-const Cell = @import("../Cell.zig");
-const Position = @import("../Position.zig");
-const TerminalBuffer = @import("../TerminalBuffer.zig");
-const termbox = TerminalBuffer.termbox;
-
-const Label = @This();
-
-text: []const u8,
-max_width: ?usize,
-fg: u32,
-bg: u32,
-is_text_allocated: bool,
-component_pos: Position,
-children_pos: Position,
-
-pub fn init(
-    text: []const u8,
-    max_width: ?usize,
-    fg: u32,
-    bg: u32,
-) Label {
-    return .{
-        .text = text,
-        .max_width = max_width,
-        .fg = fg,
-        .bg = bg,
-        .is_text_allocated = false,
-        .component_pos = TerminalBuffer.START_POSITION,
-        .children_pos = TerminalBuffer.START_POSITION,
-    };
-}
-
-pub fn setTextAlloc(
-    self: *Label,
-    allocator: Allocator,
-    comptime fmt: []const u8,
-    args: anytype,
-) !void {
-    self.text = try std.fmt.allocPrint(allocator, fmt, args);
-    self.is_text_allocated = true;
-}
-
-pub fn setTextBuf(
-    self: *Label,
-    buffer: []u8,
-    comptime fmt: []const u8,
-    args: anytype,
-) !void {
-    self.text = try std.fmt.bufPrint(buffer, fmt, args);
-    self.is_text_allocated = false;
-}
-
-pub fn setText(self: *Label, text: []const u8) void {
-    self.text = text;
-    self.is_text_allocated = false;
-}
-
-pub fn deinit(self: Label, allocator: ?Allocator) void {
-    if (self.is_text_allocated) {
-        if (allocator) |alloc| alloc.free(self.text);
-    }
-}
-
-pub fn positionX(self: *Label, original_pos: Position) void {
-    self.component_pos = original_pos;
-    self.children_pos = original_pos.addX(self.text.len);
-}
-
-pub fn positionY(self: *Label, original_pos: Position) void {
-    self.component_pos = original_pos;
-    self.children_pos = original_pos.addY(1);
-}
-
-pub fn positionXY(self: *Label, original_pos: Position) void {
-    self.component_pos = original_pos;
-    self.children_pos = Position.init(
-        self.text.len,
-        1,
-    ).add(original_pos);
-}
-
-pub fn childrenPosition(self: Label) Position {
-    return self.children_pos;
-}
-
-pub fn draw(self: Label) void {
-    if (self.max_width) |width| {
-        TerminalBuffer.drawConfinedText(
-            self.text,
-            self.component_pos.x,
-            self.component_pos.y,
-            width,
-            self.fg,
-            self.bg,
-        );
-        return;
-    }
-
-    TerminalBuffer.drawText(
-        self.text,
-        self.component_pos.x,
-        self.component_pos.y,
-        self.fg,
-        self.bg,
-    );
-}

src/tui/components/label.zig

@@ -0,0 +1,126 @@
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+
+const Cell = @import("../Cell.zig");
+const Position = @import("../Position.zig");
+const TerminalBuffer = @import("../TerminalBuffer.zig");
+const termbox = TerminalBuffer.termbox;
+
+pub fn Label(comptime ContextType: type) type {
+    return struct {
+        const Self = @This();
+
+        text: []const u8,
+        max_width: ?usize,
+        fg: u32,
+        bg: u32,
+        update_fn: ?*const fn (*Self, ContextType) anyerror!void,
+        is_text_allocated: bool,
+        component_pos: Position,
+        children_pos: Position,
+
+        pub fn init(
+            text: []const u8,
+            max_width: ?usize,
+            fg: u32,
+            bg: u32,
+            update_fn: ?*const fn (*Self, ContextType) anyerror!void,
+        ) Self {
+            return .{
+                .text = text,
+                .max_width = max_width,
+                .fg = fg,
+                .bg = bg,
+                .update_fn = update_fn,
+                .is_text_allocated = false,
+                .component_pos = TerminalBuffer.START_POSITION,
+                .children_pos = TerminalBuffer.START_POSITION,
+            };
+        }
+
+        pub fn setTextAlloc(
+            self: *Self,
+            allocator: Allocator,
+            comptime fmt: []const u8,
+            args: anytype,
+        ) !void {
+            self.text = try std.fmt.allocPrint(allocator, fmt, args);
+            self.is_text_allocated = true;
+        }
+
+        pub fn setTextBuf(
+            self: *Self,
+            buffer: []u8,
+            comptime fmt: []const u8,
+            args: anytype,
+        ) !void {
+            self.text = try std.fmt.bufPrint(buffer, fmt, args);
+            self.is_text_allocated = false;
+        }
+
+        pub fn setText(self: *Self, text: []const u8) void {
+            self.text = text;
+            self.is_text_allocated = false;
+        }
+
+        pub fn deinit(self: Self, allocator: ?Allocator) void {
+            if (self.is_text_allocated) {
+                if (allocator) |alloc| alloc.free(self.text);
+            }
+        }
+
+        pub fn positionX(self: *Self, original_pos: Position) void {
+            self.component_pos = original_pos;
+            self.children_pos = original_pos.addX(self.text.len);
+        }
+
+        pub fn positionY(self: *Self, original_pos: Position) void {
+            self.component_pos = original_pos;
+            self.children_pos = original_pos.addY(1);
+        }
+
+        pub fn positionXY(self: *Self, original_pos: Position) void {
+            self.component_pos = original_pos;
+            self.children_pos = Position.init(
+                self.text.len,
+                1,
+            ).add(original_pos);
+        }
+
+        pub fn childrenPosition(self: Self) Position {
+            return self.children_pos;
+        }
+
+        pub fn draw(self: Self) void {
+            if (self.max_width) |width| {
+                TerminalBuffer.drawConfinedText(
+                    self.text,
+                    self.component_pos.x,
+                    self.component_pos.y,
+                    width,
+                    self.fg,
+                    self.bg,
+                );
+                return;
+            }
+
+            TerminalBuffer.drawText(
+                self.text,
+                self.component_pos.x,
+                self.component_pos.y,
+                self.fg,
+                self.bg,
+            );
+        }
+
+        pub fn update(self: *Self, context: ContextType) !void {
+            if (self.update_fn) |update_fn| {
+                return @call(
+                    .auto,
+                    update_fn,
+                    .{ self, context },
+                );
+            }
+        }
+    };
+}