feat: make status bars configurable

src/tui/status/bar.zig

@@ -0,0 +1,29 @@
+const std = @import("std");
+
+const status_widget = @import("widget.zig");
+const Widget = @import("../Widget.zig");
+const WidgetList = @import("../WidgetList.zig");
+const tui = @import("../tui.zig");
+
+const Self = @This();
+
+pub const Style = enum { none, grip };
+
+pub fn create(a: std.mem.Allocator, parent: Widget, config: []const u8, style: Style, event_handler: ?Widget.EventHandler) !Widget {
+    var w = try WidgetList.createH(a, parent, "statusbar", .{ .static = 1 });
+    if (style == .grip) w.after_render = render_grip;
+    w.ctx = w;
+    var it = std.mem.splitScalar(u8, config, ' ');
+    while (it.next()) |widget_name|
+        try w.add(try status_widget.create(widget_name, a, w.plane, event_handler) orelse continue);
+    return w.widget();
+}
+
+fn render_grip(ctx: ?*anyopaque, theme: *const Widget.Theme) void {
+    const w: *WidgetList = @ptrCast(@alignCast(ctx.?));
+    if (w.hover()) {
+        w.plane.set_style(theme.statusbar_hover);
+        w.plane.cursor_move_yx(0, 0) catch {};
+        _ = w.plane.putstr("  ") catch {};
+    }
+}