1 /* 2 * Copyright (c) 2022 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_TEXT_PICKER_TEXT_PICKER_LAYOUT_ALGORITHM_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_TEXT_PICKER_TEXT_PICKER_LAYOUT_ALGORITHM_H 18 19 #include "core/components_ng/base/ui_node.h" 20 #include "core/components_ng/layout/layout_wrapper.h" 21 #include "core/components_ng/pattern/linear_layout/linear_layout_algorithm.h" 22 23 namespace OHOS::Ace::NG { 24 25 class ACE_EXPORT TextPickerLayoutAlgorithm : public LinearLayoutAlgorithm { 26 DECLARE_ACE_TYPE(TextPickerLayoutAlgorithm, LinearLayoutAlgorithm); 27 28 public: 29 TextPickerLayoutAlgorithm() = default; 30 ~TextPickerLayoutAlgorithm() override = default; 31 OnReset()32 void OnReset() override {} 33 34 void Measure(LayoutWrapper* layoutWrapper) override; 35 void Layout(LayoutWrapper* layoutWrapper) override; 36 void MeasureText(LayoutWrapper* layoutWrapper, const SizeF& size); 37 void ChangeTextStyle(uint32_t index, uint32_t showOptionCount, const SizeF& size, 38 const RefPtr<LayoutWrapper>& childLayoutWrapper, LayoutWrapper* layoutWrapper); 39 GetCurrentOffset()40 std::vector<int32_t> GetCurrentOffset() const 41 { 42 return currentOffset_; 43 } 44 SetCurrentOffset(const std::vector<int32_t> & currentOffset)45 void SetCurrentOffset(const std::vector<int32_t>& currentOffset) 46 { 47 currentOffset_ = currentOffset; 48 } 49 GetDefaultPickerItemHeight()50 double GetDefaultPickerItemHeight() const 51 { 52 return defaultPickerItemHeight_; 53 } 54 SetDefaultPickerItemHeight(double defaultPickerItemHeight)55 void SetDefaultPickerItemHeight(double defaultPickerItemHeight) 56 { 57 defaultPickerItemHeight_ = defaultPickerItemHeight; 58 } 59 GetHalfDisplayCounts()60 int32_t GetHalfDisplayCounts() const 61 { 62 return halfDisplayCounts_; 63 } 64 65 private: 66 float pickerItemHeight_ = 0.0f; 67 std::vector<int32_t> currentOffset_; 68 double defaultPickerItemHeight_ = 0.0; 69 bool isDefaultPickerItemHeight_ = false; 70 int32_t halfDisplayCounts_ = 0; 71 72 ACE_DISALLOW_COPY_AND_MOVE(TextPickerLayoutAlgorithm); 73 }; 74 } // namespace OHOS::Ace::NG 75 76 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_TEXT_PICKER_TEXT_PICKER_LAYOUT_ALGORITHM_H 77