1 /* 2 * Copyright (c) 2024 Huawei Device Co., Ltd.. All rights reserved. 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 TEXT_LINE_BASE_DEFINED 17 #define TEXT_LINE_BASE_DEFINED 18 19 #include <stddef.h> 20 21 #include "modules/skparagraph/include/DartTypes.h" 22 #include "RunBase.h" 23 24 namespace skia { 25 namespace textlayout { 26 27 class TextLineBase { 28 public: 29 virtual ~TextLineBase() = default; 30 virtual size_t getGlyphCount() const = 0; 31 virtual std::vector<std::unique_ptr<RunBase>> getGlyphRuns() const = 0; 32 virtual SkRange<size_t> getTextRange() const = 0; 33 virtual void paint(ParagraphPainter* painter, SkScalar x, SkScalar y) = 0; 34 35 #ifdef OHOS_SUPPORT 36 virtual std::unique_ptr<TextLineBase> createTruncatedLine(double width, EllipsisModal ellipsisMode, 37 const std::string& ellipsisStr) = 0; 38 virtual double getTypographicBounds(double* ascent, double* descent, double* leading) const = 0; 39 virtual RSRect getImageBounds() const = 0; 40 virtual double getTrailingSpaceWidth() const = 0; 41 virtual int32_t getStringIndexForPosition(SkPoint point) const = 0; 42 virtual double getOffsetForStringIndex(int32_t index) const = 0; 43 virtual std::map<int32_t, double> getIndexAndOffsets(bool& isHardBreak) const = 0; 44 virtual double getAlignmentOffset(double alignmentFactor, double alignmentWidth) const = 0; 45 #endif 46 }; 47 } // namespace textlayout 48 } // namespace skia 49 50 #endif // TEXT_LINE_BASE_DEFINED