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_MENU_PREVIEW_LAYOUT_ALGORITHM_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MENU_MENU_PREVIEW_LAYOUT_ALGORITHM_H 18 19 #include "base/geometry/ng/offset_t.h" 20 #include "core/components_ng/layout/layout_algorithm.h" 21 #include "core/components_ng/pattern/linear_layout/linear_layout_algorithm.h" 22 #include "core/components_ng/pattern/menu/wrapper/menu_wrapper_pattern.h" 23 24 namespace OHOS::Ace::NG { 25 class MenuPreviewLayoutAlgorithm : public LinearLayoutAlgorithm { 26 DECLARE_ACE_TYPE(MenuPreviewLayoutAlgorithm, LayoutAlgorithm); 27 public: 28 MenuPreviewLayoutAlgorithm() = default; 29 ~MenuPreviewLayoutAlgorithm() override = default; 30 31 void Measure(LayoutWrapper* layoutWrapper) override; 32 void Layout(LayoutWrapper* layoutWrapper) override; 33 void UpdateLayoutConstraintForPreview(LayoutWrapper* layoutWrapper); 34 35 private: 36 void LayoutHoverScaleImage(const RefPtr<MenuWrapperPattern>& wrapperPattern); 37 void CheckLayoutConstraint( 38 LayoutWrapper* layoutWrapper, const MenuParam& menuParam, const RefPtr<MenuPattern>& menuPattern); 39 ACE_DISALLOW_COPY_AND_MOVE(MenuPreviewLayoutAlgorithm); 40 }; 41 } // namespace OHOS::Ace::NG 42 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MENU_MENU_PREVIEW_LAYOUT_ALGORITHM_H 43