diff --git a/src/models/Document.zig b/src/models/Document.zig
index 83fe9b2..72a27cf 100644
--- a/src/models/Document.zig
+++ b/src/models/Document.zig
@@ -26,3 +26,17 @@ pub fn addObject(self: *Document, template: Object) !void {
     const obj = try template.clone(self.allocator);
     try self.objects.append(self.allocator, obj);
 }
+
+pub fn addShape(self: *Document, parent: ?*Object, shape: Object.ShapeKind) !void {
+    const obj = switch (shape) {
+        .line => try Object.createLine(self.allocator),
+        .ellipse => try Object.createEllipse(self.allocator),
+        .broken => try Object.createBrokenLine(self.allocator),
+        .arc => return error.ArcNotImplemented,
+    };
+    if (parent) |p| {
+        try p.addChild(self.allocator, obj);
+    } else {
+        try self.addObject(obj);
+    }
+}
diff --git a/src/models/Object.zig b/src/models/Object.zig
index 13f5604..5566d6c 100644
--- a/src/models/Object.zig
+++ b/src/models/Object.zig
@@ -8,7 +8,6 @@ const defaultCommonProperties = @import("Property.zig").defaultCommonProperties;
 const Object = @This();
 
 pub const ShapeKind = enum {
-    rect,
     line,
     ellipse,
     arc,
@@ -81,13 +80,6 @@ fn createWithCommonProperties(allocator: std.mem.Allocator, shape: ShapeKind) !O
     };
 }
 
-pub fn createRect(allocator: std.mem.Allocator) !Object {
-    var obj = try createWithCommonProperties(allocator, .rect);
-    errdefer obj.deinit(allocator);
-    try obj.properties.append(allocator, .{ .data = .{ .size = .{ .width = 100, .height = 100 } } });
-    return obj;
-}
-
 pub fn createEllipse(allocator: std.mem.Allocator) !Object {
     var obj = try createWithCommonProperties(allocator, .ellipse);
     errdefer obj.deinit(allocator);