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/text_picker/textpicker_pattern.h" 22 #include "core/components_ng/pattern/linear_layout/linear_layout_algorithm.h" 23 24 namespace OHOS::Ace::NG { 25 26 class ACE_EXPORT TextPickerLayoutAlgorithm : public LinearLayoutAlgorithm { 27 DECLARE_ACE_TYPE(TextPickerLayoutAlgorithm, LinearLayoutAlgorithm); 28 29 public: 30 TextPickerLayoutAlgorithm() = default; 31 ~TextPickerLayoutAlgorithm() override = default; 32 OnReset()33 void OnReset() override {} 34 35 void Measure(LayoutWrapper* layoutWrapper) override; 36 void Layout(LayoutWrapper* layoutWrapper) override; 37 void MeasureText(LayoutWrapper* layoutWrapper, const SizeF& size); 38 void ChangeTextStyle(uint32_t index, uint32_t showOptionCount, const SizeF& size, 39 const RefPtr<LayoutWrapper>& childLayoutWrapper, LayoutWrapper* layoutWrapper); 40 void GetColumnSize(const RefPtr<TextPickerLayoutProperty>& LayoutProperty, const RefPtr<PickerTheme>& pickerTheme, 41 const RefPtr<DialogTheme>& dialogTheme, SizeF& frameSize, const RefPtr<FrameNode>& pickerNode); 42 void UpdateDefaultPickerItemHeightLPX( 43 const RefPtr<FrameNode>& pickerNode, const Dimension& defaultPickerItemHeightValue); 44 float GetGradientPercent(const RefPtr<TextPickerLayoutProperty>& LayoutProperty, 45 const RefPtr<TextPickerPattern>& textPickerPattern, SizeF& frameSize, const RefPtr<PickerTheme>& pickerTheme); 46 GetCurrentOffset()47 std::vector<int32_t> GetCurrentOffset() const 48 { 49 return currentOffset_; 50 } 51 SetCurrentOffset(const std::vector<int32_t> & currentOffset)52 void SetCurrentOffset(const std::vector<int32_t>& currentOffset) 53 { 54 currentOffset_ = currentOffset; 55 } 56 GetDefaultPickerItemHeight()57 double GetDefaultPickerItemHeight() const 58 { 59 return defaultPickerItemHeight_; 60 } 61 SetDefaultPickerItemHeight(double defaultPickerItemHeight)62 void SetDefaultPickerItemHeight(double defaultPickerItemHeight) 63 { 64 defaultPickerItemHeight_ = defaultPickerItemHeight; 65 } 66 GetHalfDisplayCounts()67 int32_t GetHalfDisplayCounts() const 68 { 69 return halfDisplayCounts_; 70 } 71 72 private: 73 float pickerItemHeight_ = 0.0f; 74 std::vector<int32_t> currentOffset_; 75 double defaultPickerItemHeight_ = 0.0; 76 bool isDefaultPickerItemHeight_ = false; 77 int32_t halfDisplayCounts_ = 0; 78 float dividerSpacingFontScale_ = 1.0f; 79 float gradientFontScale_ = 1.0f; 80 const Dimension AdjustFontSizeScale(const Dimension& fontSizeValue, double fontScale); 81 bool NeedAdaptForAging(); 82 float ReCalcItemHeightScale(const Dimension& userSetHeight, bool isDividerSpacing = true); 83 void InitGradient(const float& gradientPercent, const RefPtr<FrameNode> stackNode, 84 const RefPtr<FrameNode> columnNode); 85 86 ACE_DISALLOW_COPY_AND_MOVE(TextPickerLayoutAlgorithm); 87 }; 88 } // namespace OHOS::Ace::NG 89 90 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_TEXT_PICKER_TEXT_PICKER_LAYOUT_ALGORITHM_H 91