+int RowItem::visual_v_offset() const
+{
+ return visual_v_offset_;
+}
+
+void RowItem::set_visual_v_offset(int v_offset)
+{
+ visual_v_offset_ = v_offset;
+
+ if (owner_)
+ owner_->row_item_appearance_changed(true, true);
+}
+
+void RowItem::force_to_v_offset(int v_offset)
+{
+ v_offset_animation_.stop();
+ layout_v_offset_ = visual_v_offset_ = v_offset;
+
+ if (owner_) {
+ owner_->row_item_appearance_changed(true, true);
+ owner_->extents_changed(false, true);
+ }
+}
+
+void RowItem::animate_to_layout_v_offset()