1 /* 2 * Copyright (c) 2023 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 #ifndef FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MENU_SUB_MENU_LAYOUT_ALGORITHM_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MENU_SUB_MENU_LAYOUT_ALGORITHM_H 18 19 #include "core/components_ng/pattern/menu/menu_layout_algorithm.h" 20 21 namespace OHOS::Ace::NG { 22 class ACE_EXPORT SubMenuLayoutAlgorithm : public MenuLayoutAlgorithm { 23 DECLARE_ACE_TYPE(SubMenuLayoutAlgorithm, MenuLayoutAlgorithm); 24 public: 25 SubMenuLayoutAlgorithm() = default; 26 ~SubMenuLayoutAlgorithm() override = default; 27 28 void Layout(LayoutWrapper* layoutWrapper) override; 29 30 private: 31 OffsetF GetSubMenuPosition(const RefPtr<FrameNode>& parentMenuItem, SubMenuExpandingMode expandingMode); 32 float VerticalLayoutSubMenu(const SizeF& size, float position, const SizeF& menuItemSize, 33 const RefPtr<FrameNode>& parentMenuItem, bool stacked, LayoutWrapper* layoutWrapper); 34 float HorizontalLayoutSubMenu(const SizeF& size, float position, const SizeF& menuItemSize, 35 LayoutWrapper* layoutWrapper = nullptr); 36 OffsetF MenuLayoutAvoidAlgorithm(const RefPtr<FrameNode>& parentMenuItem, const SizeF& size, 37 SubMenuExpandingMode expandingMode, LayoutWrapper* layoutWrapper = nullptr); 38 float VerticalLayoutSubMenuHalfScreen(const SizeF& size, float position, const SizeF& menuItemSize, 39 const RefPtr<FrameNode>& parentMenuItem, bool stacked, LayoutWrapper* layoutWrapper); 40 OffsetF GetSubMenuLayoutOffset(LayoutWrapper* layoutWrapper, const RefPtr<FrameNode>& parentMenuItem, 41 const SizeF& size, SubMenuExpandingMode expandingMode); 42 void ModifySubMenuWrapper(LayoutWrapper* layoutWrapper); 43 void CheckMenuPadding(LayoutWrapper* layoutWrapper); 44 void InitializePadding(LayoutWrapper* layoutWrapper); 45 void InitializePaddingAPI12(LayoutWrapper* layoutWrapper); 46 void UpdateHoverRegion(RefPtr<FrameNode>& parentMenuItem, const OffsetF& postion, const SizeF& size); 47 float CalcStackSubMenuPositionYHalfScreenWithPreview(const SizeF& size, const RefPtr<FrameNode>& parentMenu, 48 LayoutWrapper* layoutWrapper); 49 float CalcStackSubMenuPositionYHalfScreen(const SizeF& size, const RefPtr<FrameNode>& parentMenu, 50 const RefPtr<FrameNode>& parentMenuItem); 51 float NormalizePositionY(const RefPtr<FrameNode>& frameNode, float menuTopPositionY, float positionY); 52 float margin_ = 0.0f; 53 float paddingStart_ = 0.0f; 54 float paddingEnd_ = 0.0f; 55 float paddingTop_ = 0.0f; 56 float paddingBottom_ = 0.0f; 57 58 ACE_DISALLOW_COPY_AND_MOVE(SubMenuLayoutAlgorithm); 59 }; 60 } // namespace OHOS::Ace::NG 61 62 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MENU_SUB_MENU_LAYOUT_ALGORITHM_H 63