Add option to center env name (#683)

res/config.ini

@@ -188,6 +188,9 @@ sleep_cmd = null
 # Specifies the key used for sleep (F1-F12)
 sleep_key = F3
 
+# Center the session name.
+text_in_center = false
+
 # TTY in use
 tty = $DEFAULT_TTY
 

src/config/Config.zig

@@ -50,6 +50,7 @@ shutdown_cmd: []const u8 = "/sbin/shutdown -a now",
 shutdown_key: []const u8 = "F1",
 sleep_cmd: ?[]const u8 = null,
 sleep_key: []const u8 = "F3",
+text_in_center: bool = false,
 tty: u8 = build_options.tty,
 vi_default_mode: ViMode = .normal,
 vi_mode: bool = false,

src/main.zig

@@ -283,8 +283,8 @@ pub fn main() !void {
         buffer.drawBoxCenter(!config.hide_borders, config.blank_box);
 
         const coordinates = buffer.calculateComponentCoordinates();
-        info_line.label.position(coordinates.start_x, coordinates.y, coordinates.full_visible_length);
-        session.label.position(coordinates.x, coordinates.y + 2, coordinates.visible_length);
+        info_line.label.position(coordinates.start_x, coordinates.y, coordinates.full_visible_length, null);
+        session.label.position(coordinates.x, coordinates.y + 2, coordinates.visible_length, config.text_in_center);
         login.position(coordinates.x, coordinates.y + 4, coordinates.visible_length);
         password.position(coordinates.x, coordinates.y + 6, coordinates.visible_length);
 
@@ -405,8 +405,8 @@ pub fn main() !void {
 
                 if (resolution_changed) {
                     const coordinates = buffer.calculateComponentCoordinates();
-                    info_line.label.position(coordinates.start_x, coordinates.y, coordinates.full_visible_length);
-                    session.label.position(coordinates.x, coordinates.y + 2, coordinates.visible_length);
+                    info_line.label.position(coordinates.start_x, coordinates.y, coordinates.full_visible_length, null);
+                    session.label.position(coordinates.x, coordinates.y + 2, coordinates.visible_length, config.text_in_center);
                     login.position(coordinates.x, coordinates.y + 4, coordinates.visible_length);
                     password.position(coordinates.x, coordinates.y + 6, coordinates.visible_length);
 

src/tui/components/InfoLine.zig

@@ -54,7 +54,7 @@ fn drawItem(label: *MessageLabel, message: Message, _: usize, _: usize) bool {
     if (message.width == 0 or label.buffer.box_width <= message.width) return false;
 
     const x = label.buffer.box_x + ((label.buffer.box_width - message.width) / 2);
-    label.first_char_x = x;
+    label.first_char_x = x + message.width;
 
     TerminalBuffer.drawColorLabel(message.text, x, label.y, message.fg, message.bg);
     return true;

src/tui/components/Session.zig

@@ -133,7 +133,10 @@ fn drawItem(label: *EnvironmentLabel, environment: Environment, x: usize, y: usi
     const length = @min(environment.name.len, label.visible_length - 3);
     if (length == 0) return false;
 
+    const nx = if (label.text_in_center) (label.x + (label.visible_length - environment.name.len) / 2) else (label.x + 2);
+    label.first_char_x = nx + environment.name.len;
+
     label.buffer.drawLabel(environment.specifier, x, y);
-    label.buffer.drawLabel(environment.name, label.x + 2, label.y);
+    label.buffer.drawLabel(environment.name, nx, label.y);
     return true;
 }

src/tui/components/generic.zig

@@ -21,6 +21,7 @@ pub fn CyclableLabel(comptime ItemType: type) type {
         x: usize,
         y: usize,
         first_char_x: usize,
+        text_in_center: bool,
         draw_item_fn: DrawItemFn,
 
         pub fn init(allocator: Allocator, buffer: *TerminalBuffer, draw_item_fn: DrawItemFn) Self {
@@ -33,6 +34,7 @@ pub fn CyclableLabel(comptime ItemType: type) type {
                 .x = 0,
                 .y = 0,
                 .first_char_x = 0,
+                .text_in_center = false,
                 .draw_item_fn = draw_item_fn,
             };
         }
@@ -41,11 +43,14 @@ pub fn CyclableLabel(comptime ItemType: type) type {
             self.list.deinit();
         }
 
-        pub fn position(self: *Self, x: usize, y: usize, visible_length: usize) void {
+        pub fn position(self: *Self, x: usize, y: usize, visible_length: usize, text_in_center: ?bool) void {
             self.x = x;
             self.y = y;
             self.visible_length = visible_length;
             self.first_char_x = x + 2;
+            if (text_in_center) |value| {
+                self.text_in_center = value;
+            }
         }
 
         pub fn addItem(self: *Self, item: ItemType) !void {