1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_GRAPHICS_PAINT_H_ 18 #define ANDROID_GRAPHICS_PAINT_H_ 19 20 #include "Typeface.h" 21 22 #include <cutils/compiler.h> 23 24 #include <SkPaint.h> 25 #include <string> 26 27 #include <minikin/FontFamily.h> 28 29 namespace android { 30 31 class ANDROID_API Paint : public SkPaint { 32 public: 33 // Default values for underlined and strikethrough text, 34 // as defined by Skia in SkTextFormatParams.h. 35 constexpr static float kStdStrikeThru_Offset = (-6.0f / 21.0f); 36 constexpr static float kStdUnderline_Offset = (1.0f / 9.0f); 37 constexpr static float kStdUnderline_Thickness = (1.0f / 18.0f); 38 39 constexpr static float kStdUnderline_Top = 40 kStdUnderline_Offset - 0.5f * kStdUnderline_Thickness; 41 42 constexpr static float kStdStrikeThru_Thickness = kStdUnderline_Thickness; 43 constexpr static float kStdStrikeThru_Top = 44 kStdStrikeThru_Offset - 0.5f * kStdStrikeThru_Thickness; 45 46 Paint(); 47 Paint(const Paint& paint); 48 Paint(const SkPaint& paint); // NOLINT(implicit) 49 ~Paint(); 50 51 Paint& operator=(const Paint& other); 52 53 friend bool operator==(const Paint& a, const Paint& b); 54 friend bool operator!=(const Paint& a, const Paint& b) { return !(a == b); } 55 56 void setLetterSpacing(float letterSpacing) { mLetterSpacing = letterSpacing; } 57 58 float getLetterSpacing() const { return mLetterSpacing; } 59 60 void setWordSpacing(float wordSpacing) { mWordSpacing = wordSpacing; } 61 62 float getWordSpacing() const { return mWordSpacing; } 63 64 void setFontFeatureSettings(const std::string& fontFeatureSettings) { 65 mFontFeatureSettings = fontFeatureSettings; 66 } 67 68 std::string getFontFeatureSettings() const { return mFontFeatureSettings; } 69 70 void setMinikinLocaleListId(uint32_t minikinLocaleListId) { 71 mMinikinLocaleListId = minikinLocaleListId; 72 } 73 74 uint32_t getMinikinLocaleListId() const { return mMinikinLocaleListId; } 75 76 void setFamilyVariant(minikin::FontFamily::Variant variant) { mFamilyVariant = variant; } 77 78 minikin::FontFamily::Variant getFamilyVariant() const { return mFamilyVariant; } 79 80 void setHyphenEdit(uint32_t hyphen) { mHyphenEdit = hyphen; } 81 82 uint32_t getHyphenEdit() const { return mHyphenEdit; } 83 84 void setAndroidTypeface(Typeface* typeface) { mTypeface = typeface; } 85 86 const Typeface* getAndroidTypeface() const { return mTypeface; } 87 88 private: 89 float mLetterSpacing = 0; 90 float mWordSpacing = 0; 91 std::string mFontFeatureSettings; 92 uint32_t mMinikinLocaleListId; 93 minikin::FontFamily::Variant mFamilyVariant; 94 uint32_t mHyphenEdit = 0; 95 // The native Typeface object has the same lifetime of the Java Typeface 96 // object. The Java Paint object holds a strong reference to the Java Typeface 97 // object. Thus, following pointer can never be a dangling pointer. Note that 98 // nullptr is valid: it means the default typeface. 99 const Typeface* mTypeface = nullptr; 100 }; 101 102 } // namespace android 103 104 #endif // ANDROID_GRAPHICS_PAINT_H_ 105
