Тулзы перенесены в свой каталог

src/toolbar/Toolbar.zig

@@ -0,0 +1,43 @@
+const Tool = @import("Tool.zig");
+
+const Toolbar = @This();
+
+pub const ToolDescriptor = struct {
+    name: []const u8,
+    icon_tvg: []const u8,
+    implementation: *const Tool.Tool,
+};
+
+tools: []const ToolDescriptor,
+selected_index: ?usize,
+
+pub fn init(tools_list: []const ToolDescriptor) Toolbar {
+    return .{
+        .tools = tools_list,
+        .selected_index = null,
+    };
+}
+
+pub fn deinit(_: *Toolbar) void {}
+
+pub fn currentDescriptor(self: *const Toolbar) ?*const ToolDescriptor {
+    if (self.tools.len == 0) return null;
+    if (self.selected_index) |index| {
+        return &self.tools[index];
+    }
+    return null;
+}
+
+pub fn select(self: *Toolbar, index: ?usize) void {
+    if (index == self.selected_index) {
+        self.selected_index = null;
+        return;
+    }
+    if (index) |i| {
+        if (i < self.tools.len) {
+            self.selected_index = i;
+        }
+    } else {
+        self.selected_index = null;
+    }
+}