Переход на object_id

src/models/Document.zig

@@ -9,12 +9,14 @@ const shape = @import("shape/shape.zig");
 size: Size_f,
 allocator: std.mem.Allocator,
 objects: std.ArrayList(Object),
+next_object_id: u64,
 
 pub fn init(allocator: std.mem.Allocator, size: Size_f) Document {
     return .{
         .size = size,
         .allocator = allocator,
         .objects = std.ArrayList(Object).empty,
+        .next_object_id = 1,
     };
 }
 
@@ -24,14 +26,14 @@ pub fn deinit(self: *Document) void {
 }
 
 pub fn addObject(self: *Document, template: Object) !void {
-    const obj = try template.clone(self.allocator);
+    const obj = try template.clone(self.allocator, &self.next_object_id);
     try self.objects.append(self.allocator, obj);
 }
 
 pub fn addShape(self: *Document, parent: ?*Object, shape_kind: Object.ShapeKind) !void {
     const obj = try shape.createObject(self.allocator, shape_kind);
     if (parent) |p| {
-        try p.addChild(self.allocator, obj);
+        try p.addChild(self.allocator, obj, &self.next_object_id);
     } else {
         try self.addObject(obj);
     }
@@ -50,6 +52,27 @@ pub fn removeObject(self: *Document, obj: *Object) bool {
     return false;
 }
 
+/// Удаляет объект по id. Возвращает true, если объект был найден и удалён.
+pub fn removeObjectById(self: *Document, obj_id: u64) bool {
+    for (self.objects.items, 0..) |*item, i| {
+        if (item.id == obj_id) {
+            var removed = self.objects.orderedRemove(i);
+            removed.deinit(self.allocator);
+            return true;
+        }
+        if (removeFromChildrenById(self.allocator, &item.children, obj_id)) return true;
+    }
+    return false;
+}
+
+pub fn findObjectById(self: *Document, obj_id: u64) ?*Object {
+    for (self.objects.items) |*item| {
+        if (item.id == obj_id) return item;
+        if (findInChildrenById(&item.children, obj_id)) |found| return found;
+    }
+    return null;
+}
+
 fn removeFromChildren(allocator: std.mem.Allocator, children: *std.ArrayList(Object), obj: *Object) bool {
     for (children.items, 0..) |*item, i| {
         if (item == obj) {
@@ -61,3 +84,23 @@ fn removeFromChildren(allocator: std.mem.Allocator, children: *std.ArrayList(Obj
     }
     return false;
 }
+
+fn removeFromChildrenById(allocator: std.mem.Allocator, children: *std.ArrayList(Object), obj_id: u64) bool {
+    for (children.items, 0..) |*item, i| {
+        if (item.id == obj_id) {
+            var removed = children.orderedRemove(i);
+            removed.deinit(allocator);
+            return true;
+        }
+        if (removeFromChildrenById(allocator, &item.children, obj_id)) return true;
+    }
+    return false;
+}
+
+fn findInChildrenById(children: *std.ArrayList(Object), obj_id: u64) ?*Object {
+    for (children.items) |*item| {
+        if (item.id == obj_id) return item;
+        if (findInChildrenById(&item.children, obj_id)) |found| return found;
+    }
+    return null;
+}