1 /* 2 * Copyright (c) 2023-2024 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 SKIA_FONT_H 17 #define SKIA_FONT_H 18 19 #include <memory> 20 21 #include "include/core/SkFont.h" 22 23 #include "impl_interface/font_impl.h" 24 #include "text/font.h" 25 26 namespace OHOS { 27 namespace Rosen { 28 namespace Drawing { 29 class SkiaFont : public FontImpl { 30 public: 31 static inline constexpr AdapterType TYPE = AdapterType::SKIA_ADAPTER; 32 33 SkiaFont() noexcept = default; 34 SkiaFont(std::shared_ptr<Typeface> typeface, scalar size, scalar scaleX, scalar skewX) noexcept; 35 explicit SkiaFont(const Font& font) noexcept; 36 ~SkiaFont() override = default; 37 GetType()38 AdapterType GetType() const override 39 { 40 return AdapterType::SKIA_ADAPTER; 41 } 42 43 void SetEdging(FontEdging edging) override; 44 void SetBaselineSnap(bool baselineSnap) override; 45 void SetForceAutoHinting(bool isForceAutoHinting) override; 46 void SetSubpixel(bool isSubpixel) override; 47 void SetHinting(FontHinting hintingLevel) override; 48 void SetEmbeddedBitmaps(bool embeddedBitmaps) override; 49 void SetTypeface(std::shared_ptr<Typeface> typeface) override; 50 void SetSize(scalar textSize) override; 51 void SetEmbolden(bool isEmbolden) override; 52 void SetScaleX(scalar scaleX) override; 53 void SetSkewX(scalar skewX) override; 54 void SetLinearMetrics(bool isLinearMetrics) override; 55 56 scalar GetMetrics(FontMetrics* metrics) const override; 57 void GetWidths(const uint16_t glyphs[], int count, scalar widths[]) const override; 58 void GetWidths(const uint16_t glyphs[], int count, scalar widths[], Rect bounds[]) const override; 59 scalar GetSize() const override; 60 std::shared_ptr<Typeface> GetTypeface() const override; 61 62 FontEdging GetEdging() const override; 63 FontHinting GetHinting() const override; 64 bool IsEmbeddedBitmaps() const override; 65 scalar GetScaleX() const override; 66 scalar GetSkewX() const override; 67 bool IsBaselineSnap() const override; 68 bool IsForceAutoHinting() const override; 69 bool IsSubpixel() const override; 70 bool IsLinearMetrics() const override; 71 bool IsEmbolden() const override; 72 73 uint16_t UnicharToGlyph(int32_t uni) const override; 74 int TextToGlyphs(const void* text, size_t byteLength, TextEncoding encoding, 75 uint16_t glyphs[], int maxGlyphCount) const override; 76 77 scalar MeasureText(const void* text, size_t byteLength, TextEncoding encoding, Rect* bounds) const override; 78 int CountText(const void* text, size_t byteLength, TextEncoding encoding) const override; 79 80 const SkFont& GetFont() const; 81 82 private: 83 SkFont skFont_; 84 std::shared_ptr<Typeface> typeface_ = nullptr; 85 }; 86 } // namespace Drawing 87 } // namespace Rosen 88 } // namespace OHOS 89 #endif