1 /* 2 * Copyright (c) 2023-2025 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 FONT_IMPL_H 17 #define FONT_IMPL_H 18 19 #include <cstdint> 20 21 #include "draw/path.h" 22 #include "draw/brush.h" 23 #include "draw/pen.h" 24 #include "impl_interface/base_impl.h" 25 #include "text/font_metrics.h" 26 #include "text/font_types.h" 27 #include "text/typeface.h" 28 #include "utils/rect.h" 29 #include "utils/scalar.h" 30 31 namespace OHOS { 32 namespace Rosen { 33 namespace Drawing { 34 enum class FontEdging; 35 36 class FontImpl : public BaseImpl { 37 public: 38 ~FontImpl() override = default; 39 40 virtual void SetEdging(FontEdging edging) = 0; 41 virtual void SetBaselineSnap(bool baselineSnap) = 0; 42 virtual void SetForceAutoHinting(bool isForceAutoHinting) = 0; 43 virtual void SetSubpixel(bool isSubpixel) = 0; 44 virtual void SetHinting(FontHinting hintingLevel) = 0; 45 virtual void SetEmbeddedBitmaps(bool embeddedBitmaps) = 0; 46 virtual void SetTypeface(std::shared_ptr<Typeface> typeface) = 0; 47 virtual void SetSize(scalar textSize) = 0; 48 virtual void SetEmbolden(bool isEmbolden) = 0; 49 virtual void SetScaleX(scalar scaleX) = 0; 50 virtual void SetSkewX(scalar skewX) = 0; 51 virtual void SetLinearMetrics(bool isLinearMetrics) = 0; 52 53 virtual scalar GetMetrics(FontMetrics* metrics) const = 0; 54 virtual void GetWidths(const uint16_t glyphs[], int count, scalar widths[]) const = 0; 55 virtual void GetWidths(const uint16_t glyphs[], int count, scalar widths[], Rect bounds[]) const = 0; 56 virtual scalar GetSize() const = 0; 57 virtual std::shared_ptr<Typeface> GetTypeface() const = 0; 58 59 virtual FontEdging GetEdging() const = 0; 60 virtual FontHinting GetHinting() const = 0; 61 virtual scalar GetScaleX() const = 0; 62 virtual scalar GetSkewX() const = 0; 63 virtual bool IsBaselineSnap() const = 0; 64 virtual bool IsEmbeddedBitmaps() const = 0; 65 virtual bool IsEmbolden() const = 0; 66 virtual bool IsForceAutoHinting() const = 0; 67 virtual bool IsLinearMetrics() const = 0; 68 virtual bool IsSubpixel() const = 0; 69 70 virtual uint16_t UnicharToGlyph(int32_t uni) const = 0; 71 virtual int TextToGlyphs(const void* text, size_t byteLength, TextEncoding encoding, 72 uint16_t glyphs[], int maxGlyphCount) const = 0; 73 virtual bool GetPathForGlyph(uint16_t glyph, Path* path) const = 0; 74 75 virtual scalar MeasureText(const void* text, size_t byteLength, TextEncoding encoding, 76 Rect* bounds = nullptr) const = 0; 77 virtual scalar MeasureText(const void* text, size_t byteLength, TextEncoding encoding, Rect* bounds, 78 const Brush* brush, const Pen* pen) const = 0; 79 virtual void GetWidthsBounds(const uint16_t glyphs[], int count, float widths[], Rect bounds[], 80 const Brush* brush, const Pen* pen) const = 0; 81 virtual void GetPos(const uint16_t glyphs[], int count, Point points[], Point origin = {0, 0}) const = 0; 82 virtual float GetSpacing() const = 0; 83 virtual int CountText(const void* text, size_t byteLength, TextEncoding encoding) const = 0; 84 85 virtual void GetTextPath(const void* text, size_t byteLength, 86 TextEncoding encoding, float x, float y, Path* path) const = 0; 87 88 protected: 89 FontImpl() noexcept = default; 90 }; 91 } // namespace Drawing 92 } // namespace Rosen 93 } // namespace OHOS 94 #endif