1 /*
2 * Copyright (c) 2025 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 #include "text_font_utils.h"
16
17 namespace OHOS {
18 namespace Rosen {
19 namespace SPText {
20 namespace skt = skia::textlayout;
21 static const int WEIGHT_BASE = 100;
22
GetTxtFontWeight(int fontWeight)23 FontWeight TextFontUtils::GetTxtFontWeight(int fontWeight)
24 {
25 constexpr int minWeight = static_cast<int>(FontWeight::W100);
26 constexpr int maxWeight = static_cast<int>(FontWeight::W900);
27
28 int weight = std::clamp((fontWeight - WEIGHT_BASE) / WEIGHT_BASE, minWeight, maxWeight);
29 return static_cast<FontWeight>(weight);
30 }
31
GetTxtFontStyle(RSFontStyle::Slant slant)32 FontStyle TextFontUtils::GetTxtFontStyle(RSFontStyle::Slant slant)
33 {
34 return slant == RSFontStyle::Slant::UPRIGHT_SLANT ? FontStyle::NORMAL : FontStyle::ITALIC;
35 }
36
GetSkiaFontWeight(FontWeight spFontWeight)37 RSFontStyle::Weight TextFontUtils::GetSkiaFontWeight(FontWeight spFontWeight)
38 {
39 constexpr int minWeight = static_cast<int>(FontWeight::W100);
40 constexpr int maxWeight = static_cast<int>(FontWeight::W900);
41
42 int fontWeight = static_cast<int>(spFontWeight);
43 fontWeight = std::clamp(fontWeight, minWeight, maxWeight) + 1;
44
45 return static_cast<RSFontStyle::Weight>(fontWeight * WEIGHT_BASE);
46 }
47
GetSkiaFontSlant(FontStyle spSlant)48 RSFontStyle::Slant TextFontUtils::GetSkiaFontSlant(FontStyle spSlant)
49 {
50 return spSlant == FontStyle::NORMAL ? RSFontStyle::UPRIGHT_SLANT : RSFontStyle::ITALIC_SLANT;
51 }
52
GetSkiaFontWidth(FontWidth spFontWidth)53 RSFontStyle::Width TextFontUtils::GetSkiaFontWidth(FontWidth spFontWidth)
54 {
55 return RSFontStyle::Width(static_cast<int>(spFontWidth));
56 }
57
GetSkiaFontfamilies(const std::vector<std::string> & spFontFamiles)58 std::vector<SkString> TextFontUtils::GetSkiaFontfamilies(const std::vector<std::string>& spFontFamiles)
59 {
60 std::vector<SkString> skiaFontFamiles;
61 std::transform(spFontFamiles.begin(), spFontFamiles.end(), std::back_inserter(skiaFontFamiles),
62 [](const std::string& f) { return SkString(f.c_str()); });
63 return skiaFontFamiles;
64 }
65
MakeFontArguments(skt::TextStyle & skStyle,const FontVariations & fontVariations)66 void TextFontUtils::MakeFontArguments(skt::TextStyle& skStyle, const FontVariations& fontVariations)
67 {
68 constexpr size_t axisLen = 4;
69
70 std::vector<SkFontArguments::VariationPosition::Coordinate> coordinates;
71 for (const auto& [axis, value] : fontVariations.GetAxisValues()) {
72 if (axis.length() == axisLen) {
73 coordinates.push_back({
74 SkSetFourByteTag(axis[0], axis[1], axis[2], axis[3]),
75 value,
76 });
77 }
78 }
79 SkFontArguments::VariationPosition position = { coordinates.data(), static_cast<int>(coordinates.size()) };
80
81 SkFontArguments arguments;
82 arguments.setVariationDesignPosition(position);
83 skStyle.setFontArguments(arguments);
84 }
85
MakeTextShadow(const TextShadow & txtShadow)86 skt::TextShadow TextFontUtils::MakeTextShadow(const TextShadow& txtShadow)
87 {
88 skt::TextShadow shadow;
89 shadow.fOffset = txtShadow.offset;
90 shadow.fBlurSigma = txtShadow.blurSigma;
91 shadow.fColor = txtShadow.color;
92 return shadow;
93 }
94
ConvertToRSFontSlant(FontStyle fontStyle)95 RSFontStyle::Slant TextFontUtils::ConvertToRSFontSlant(FontStyle fontStyle)
96 {
97 RSFontStyle::Slant slant;
98 switch (fontStyle) {
99 case FontStyle::NORMAL:
100 slant = RSFontStyle::Slant::UPRIGHT_SLANT;
101 break;
102 case FontStyle::ITALIC:
103 slant = RSFontStyle::Slant::ITALIC_SLANT;
104 break;
105 case FontStyle::OBLIQUE:
106 slant = RSFontStyle::Slant::OBLIQUE_SLANT;
107 break;
108 default:
109 slant = RSFontStyle::Slant::UPRIGHT_SLANT;
110 }
111 return slant;
112 }
113
ConvertToSkFontWeight(FontWeight fontWeight)114 int TextFontUtils::ConvertToSkFontWeight(FontWeight fontWeight)
115 {
116 return static_cast<int>(fontWeight) * WEIGHT_BASE + WEIGHT_BASE;
117 }
118
MakeFontStyle(FontWeight fontWeight,FontWidth fontWidth,FontStyle fontStyle)119 RSFontStyle TextFontUtils::MakeFontStyle(FontWeight fontWeight, FontWidth fontWidth, FontStyle fontStyle)
120 {
121 auto weight = TextFontUtils::ConvertToSkFontWeight(fontWeight);
122 auto width = static_cast<RSFontStyle::Width>(fontWidth);
123 auto slant = TextFontUtils::ConvertToRSFontSlant(fontStyle);
124 return RSFontStyle(weight, width, slant);
125 }
126
127 } // namespace SPText
128 } // namespace Rosen
129 } // namespace OHOS