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 void UpdateContentSize(const SizeF& size, const RefPtr<LayoutWrapper> layoutWrapper); 47 GetCurrentOffset()48 std::vector<int32_t> GetCurrentOffset() const 49 { 50 return currentOffset_; 51 } 52 SetCurrentOffset(const std::vector<int32_t> & currentOffset)53 void SetCurrentOffset(const std::vector<int32_t>& currentOffset) 54 { 55 currentOffset_ = currentOffset; 56 } 57 GetDefaultPickerItemHeight()58 double GetDefaultPickerItemHeight() const 59 { 60 return defaultPickerItemHeight_; 61 } 62 SetDefaultPickerItemHeight(double defaultPickerItemHeight)63 void SetDefaultPickerItemHeight(double defaultPickerItemHeight) 64 { 65 defaultPickerItemHeight_ = defaultPickerItemHeight; 66 } 67 GetHalfDisplayCounts()68 int32_t GetHalfDisplayCounts() const 69 { 70 return halfDisplayCounts_; 71 } 72 73 private: 74 float pickerItemHeight_ = 0.0f; 75 std::vector<int32_t> currentOffset_; 76 double defaultPickerItemHeight_ = 0.0; 77 bool isDefaultPickerItemHeight_ = false; 78 int32_t halfDisplayCounts_ = 0; 79 float dividerSpacingFontScale_ = 1.0f; 80 float gradientFontScale_ = 1.0f; 81 const Dimension AdjustFontSizeScale(const Dimension& fontSizeValue, double fontScale); 82 bool NeedAdaptForAging(); 83 float ReCalcItemHeightScale(const Dimension& userSetHeight, bool isDividerSpacing = true); 84 void InitGradient(const float& gradientPercent, const RefPtr<FrameNode> stackNode, 85 const RefPtr<FrameNode> columnNode); 86 87 ACE_DISALLOW_COPY_AND_MOVE(TextPickerLayoutAlgorithm); 88 }; 89 } // namespace OHOS::Ace::NG 90 91 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_TEXT_PICKER_TEXT_PICKER_LAYOUT_ALGORITHM_H 92