1 /* 2 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include "layout/list_layout.h" 17 18 namespace OHOS { ListLayout(const uint8_t direction)19ListLayout::ListLayout(const uint8_t direction) : listDirection_(direction) 20 { 21 SetLayoutDirect(direction); 22 } 23 SetDirection(uint8_t direction)24void ListLayout::SetDirection(uint8_t direction) 25 { 26 listDirection_ = direction; 27 SetLayoutDirect(direction); 28 OnChildChanged(); 29 } 30 SetLayoutDirect(uint8_t direction)31void ListLayout::SetLayoutDirect(uint8_t direction) 32 { 33 if (direction == VERTICAL) { 34 direction_ = LAYOUT_VER; 35 } else { 36 direction_ = LAYOUT_HOR; 37 } 38 } 39 OnChildChanged()40void ListLayout::OnChildChanged() 41 { 42 LayoutChildren(true); 43 Rect rect = GetAllChildRelativeRect(); 44 if (listDirection_ == VERTICAL) { 45 SetHeight(rect.GetHeight() + rect.GetTop()); 46 } else { 47 SetWidth(rect.GetWidth() + rect.GetLeft()); 48 } 49 } 50 } // namespace OHOS 51