Line data    Source code

       1             : /**
       2             :  Copyright (c) 2023-2024 Stappler LLC <admin@stappler.dev>
       3             : 
       4             :  Permission is hereby granted, free of charge, to any person obtaining a copy
       5             :  of this software and associated documentation files (the "Software"), to deal
       6             :  in the Software without restriction, including without limitation the rights
       7             :  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
       8             :  copies of the Software, and to permit persons to whom the Software is
       9             :  furnished to do so, subject to the following conditions:
      10             : 
      11             :  The above copyright notice and this permission notice shall be included in
      12             :  all copies or substantial portions of the Software.
      13             : 
      14             :  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      15             :  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      16             :  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      17             :  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      18             :  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
      19             :  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
      20             :  THE SOFTWARE.
      21             :  **/
      22             : 
      23             : #include "SPFontStyle.h"
      24             : #include "SPMemory.h"
      25             : 
      26             : namespace STAPPLER_VERSIONIZED stappler::font {
      27             : 
      28             : #ifdef __LCC__
      29             : 
      30             : constexpr FontStretch FontStretch::UltraCondensed = FontStretch(50 << 1);
      31             : constexpr FontStretch FontStretch::ExtraCondensed = FontStretch((62 << 1) | 1);
      32             : constexpr FontStretch FontStretch::Condensed = FontStretch(75 << 1);
      33             : constexpr FontStretch FontStretch::SemiCondensed = FontStretch((87 << 1) | 1);
      34             : constexpr FontStretch FontStretch::Normal = FontStretch(100 << 1);
      35             : constexpr FontStretch FontStretch::SemiExpanded = FontStretch((112 << 1) | 1);
      36             : constexpr FontStretch FontStretch::Expanded = FontStretch(125 << 1);
      37             : constexpr FontStretch FontStretch::ExtraExpanded = FontStretch(150 << 1);
      38             : constexpr FontStretch FontStretch::UltraExpanded = FontStretch(200 << 1);
      39             : 
      40             : constexpr FontWeight FontWeight::Thin = FontWeight(100);
      41             : constexpr FontWeight FontWeight::ExtraLight = FontWeight(200);
      42             : constexpr FontWeight FontWeight::Light = FontWeight(300);
      43             : constexpr FontWeight FontWeight::Normal = FontWeight(400);
      44             : constexpr FontWeight FontWeight::Regular = FontWeight(400);
      45             : constexpr FontWeight FontWeight::Medium = FontWeight(500);
      46             : constexpr FontWeight FontWeight::SemiBold = FontWeight(600);
      47             : constexpr FontWeight FontWeight::Bold = FontWeight(700);
      48             : constexpr FontWeight FontWeight::ExtraBold = FontWeight(800);
      49             : constexpr FontWeight FontWeight::Heavy = FontWeight(900);
      50             : constexpr FontWeight FontWeight::Black = FontWeight(1000);
      51             : 
      52             : constexpr FontSize FontSize::XXSmall = FontSize(uint16_t(8));
      53             : constexpr FontSize FontSize::XSmall = FontSize(uint16_t(10));
      54             : constexpr FontSize FontSize::Small = FontSize(uint16_t(12));
      55             : constexpr FontSize FontSize::Medium = FontSize(uint16_t(14));
      56             : constexpr FontSize FontSize::Large = FontSize(uint16_t(16));
      57             : constexpr FontSize FontSize::XLarge = FontSize(uint16_t(20));
      58             : constexpr FontSize FontSize::XXLarge = FontSize(uint16_t(24));
      59             : 
      60             : constexpr FontStyle FontStyle::Normal = FontStyle(0);
      61             : constexpr FontStyle FontStyle::Italic = FontStyle(minOf<int16_t>());
      62             : constexpr FontStyle FontStyle::Oblique = FontStyle(-10 << 6);
      63             : 
      64             : constexpr FontGrade FontGrade::Thin = FontGrade(-200);
      65             : constexpr FontGrade FontGrade::Reduced = FontGrade(-50);
      66             : constexpr FontGrade FontGrade::Normal = FontGrade(0);
      67             : constexpr FontGrade FontGrade::Heavy = FontGrade(150);
      68             : 
      69             : #endif
      70             : 
      71        2245 : static void s_getSpecializationArgs(std::ostream &out, const FontSpecializationVector &vec) {
      72        2245 :         out << "?size=" << vec.fontSize.get();
      73        2245 :         out << "&weight=" << vec.fontWeight.get();
      74        2245 :         out << "&width=" << vec.fontStretch.get();
      75        2245 :         switch (vec.fontStyle.get()) {
      76         697 :         case FontStyle::Normal.get(): out << "&style=normal"; break;
      77           0 :         case FontStyle::Italic.get(): out << "&style=italic"; break;
      78        1548 :         default: out << "&style=" << vec.fontStyle.get(); break;
      79             :         }
      80        2245 :         out << "&density=" << vec.density;
      81        2245 :         if (vec.fontGrade != FontGrade::Normal) {
      82        1586 :                 out << "&grade=" << vec.fontGrade.get();
      83             :         }
      84        2245 : }
      85             : 
      86             : template <>
      87           0 : auto FontSpecializationVector::getSpecializationArgs<memory::PoolInterface>() const -> memory::PoolInterface::StringType {
      88           0 :         memory::PoolInterface::StringStreamType out;
      89           0 :         s_getSpecializationArgs(out, *this);
      90           0 :         return out.str();
      91           0 : }
      92             : 
      93             : template <>
      94        2245 : auto FontSpecializationVector::getSpecializationArgs<memory::StandartInterface>() const -> memory::StandartInterface::StringType {
      95        2245 :         memory::StandartInterface::StringStreamType out;
      96        2245 :         s_getSpecializationArgs(out, *this);
      97        4490 :         return out.str();
      98        2245 : }
      99             : 
     100           0 : FontParameters FontParameters::create(StringView str, memory::pool_t *pool) {
     101           0 :         FontParameters ret;
     102             : 
     103             :         enum State {
     104             :                 Family,
     105             :                 Size,
     106             :                 Style,
     107             :                 Weight,
     108             :                 Stretch,
     109             :                 Overflow,
     110           0 :         } state = Family;
     111             : 
     112           0 :         str.split<StringView::Chars<'.'>>([&] (const StringView &ir) {
     113           0 :                 StringView r(ir);
     114           0 :                 switch (state) {
     115           0 :                 case Family:
     116           0 :                         ret.fontFamily = r.pdup(pool);
     117           0 :                         state = Size;
     118           0 :                         break;
     119           0 :                 case Size:
     120           0 :                         if (r.is("xxs")) { ret.fontSize = FontSize::XXSmall; }
     121           0 :                         else if (r.is("xs")) { ret.fontSize = FontSize::XSmall; }
     122           0 :                         else if (r.is("s")) { ret.fontSize = FontSize::Small; }
     123           0 :                         else if (r.is("m")) { ret.fontSize = FontSize::Medium; }
     124           0 :                         else if (r.is("l")) {ret.fontSize = FontSize::Large; }
     125           0 :                         else if (r.is("xl")) { ret.fontSize = FontSize::XLarge; }
     126           0 :                         else if (r.is("xxl")) { ret.fontSize = FontSize::XXLarge; }
     127           0 :                         else { r.readInteger().unwrap([&] (int64_t value) { ret.fontSize = FontSize(value); }); }
     128           0 :                         state = Style;
     129           0 :                         break;
     130           0 :                 case Style:
     131           0 :                         if (r.is("i")) { ret.fontStyle = FontStyle::Italic; }
     132           0 :                         else if (r.is("o")) { ret.fontStyle = FontStyle::Oblique; }
     133           0 :                         else if (r.is("n")) { ret.fontStyle = FontStyle::Normal; }
     134           0 :                         state = Weight;
     135           0 :                         break;
     136           0 :                 case Weight:
     137           0 :                         ret.fontWeight = FontWeight(r.readInteger(10).get(400));
     138           0 :                         state = Stretch;
     139           0 :                         break;
     140           0 :                 case Stretch:
     141           0 :                         ret.fontStretch = FontStretch(r.readInteger(10).get(100 << 1));
     142           0 :                         state = Overflow;
     143           0 :                         break;
     144           0 :                 default: break;
     145             :                 }
     146           0 :         });
     147           0 :         return ret;
     148             : }
     149             : 
     150             : template <>
     151           0 : auto FontParameters::getFontConfigName<memory::PoolInterface>(StringView fontFamily, FontSize fontSize, FontStyle fontStyle, FontWeight fontWeight,
     152             :                 FontStretch fontStretch, FontGrade fontGrade, FontVariant fontVariant, bool caps) -> memory::PoolInterface::StringType {
     153           0 :         auto size = fontSize;
     154           0 :         memory::PoolInterface::StringType name;
     155           0 :         name.reserve(fontFamily.size() + 14);
     156           0 :         name += fontFamily.str<memory::PoolInterface>();
     157             : 
     158           0 :         if (caps && fontVariant == FontVariant::SmallCaps) {
     159           0 :                 size -= size / 5.0f;
     160             :         }
     161             : 
     162           0 :         name += "." + mem_pool::toString(size.get());
     163             : 
     164           0 :         switch (fontStyle.get()) {
     165           0 :         case FontStyle::Normal.get(): name += ".n"; break;
     166           0 :         case FontStyle::Italic.get(): name += ".i"; break;
     167           0 :         default: name += "."; name += mem_pool::toString(fontStyle.get()); break;
     168             :         }
     169             : 
     170           0 :         name += mem_pool::toString(".", fontWeight.get());
     171           0 :         name += mem_pool::toString(".", fontStretch.get());
     172           0 :         name += mem_pool::toString(".", fontGrade.get());
     173           0 :         return name;
     174           0 : }
     175             : 
     176             : template <>
     177       23155 : auto FontParameters::getFontConfigName<memory::StandartInterface>(StringView fontFamily, FontSize fontSize, FontStyle fontStyle, FontWeight fontWeight,
     178             :                 FontStretch fontStretch, FontGrade fontGrade, FontVariant fontVariant, bool caps) -> memory::StandartInterface::StringType {
     179       23155 :         auto size = fontSize;
     180       23155 :         memory::StandartInterface::StringType name;
     181       23155 :         name.reserve(fontFamily.size() + 14);
     182       23155 :         name += fontFamily.str<memory::StandartInterface>();
     183             : 
     184       23155 :         if (caps && fontVariant == FontVariant::SmallCaps) {
     185           0 :                 size -= size / 5.0f;
     186             :         }
     187             : 
     188       23155 :         name += "." + mem_std::toString(size.get());
     189             : 
     190       23155 :         switch (fontStyle.get()) {
     191       20833 :         case FontStyle::Normal.get(): name += ".n"; break;
     192           0 :         case FontStyle::Italic.get(): name += ".i"; break;
     193        2322 :         default: name += "."; name += mem_std::toString(fontStyle.get()); break;
     194             :         }
     195             : 
     196       23155 :         name += mem_std::toString(".", fontWeight.get());
     197       23155 :         name += mem_std::toString(".", fontStretch.get());
     198       23155 :         name += mem_std::toString(".", fontGrade.get());
     199       46310 :         return name;
     200           0 : }
     201             : 
     202           0 : FontParameters FontParameters::getSmallCaps() const {
     203           0 :         FontParameters ret = *this;
     204           0 :         ret.fontSize -= ret.fontSize / 5.0f;
     205           0 :         return ret;
     206             : }
     207             : 
     208        5724 : FontSpecializationVector FontVariations::getSpecialization(const FontSpecializationVector &vec) const {
     209        5724 :         FontSpecializationVector ret = vec;
     210        5724 :         if ((axisMask & FontVariableAxis::Weight) != FontVariableAxis::None) {
     211        2912 :                 ret.fontWeight = weight.clamp(vec.fontWeight);
     212             :         } else {
     213        2812 :                 ret.fontWeight = weight.min;
     214             :         }
     215        5724 :         if ((axisMask & FontVariableAxis::Stretch) != FontVariableAxis::None) {
     216        2812 :                 ret.fontStretch = stretch.clamp(vec.fontStretch);
     217             :         } else {
     218        2912 :                 ret.fontStretch = stretch.min;
     219             :         }
     220        5724 :         if ((axisMask & FontVariableAxis::Grade) != FontVariableAxis::None) {
     221        2812 :                 ret.fontGrade = grade.clamp(vec.fontGrade);
     222             :         } else {
     223        2912 :                 ret.fontGrade = grade.min;
     224             :         }
     225             : 
     226        5724 :         switch (vec.fontStyle.get()) {
     227        2628 :         case FontStyle::Normal.get():
     228             :                 // we should have 0 on italic and slant
     229        2628 :                 if (italic.min == 0 && slant.min <= FontStyle::Normal && slant.max >= FontStyle::Normal) {
     230        2578 :                         ret.fontStyle = FontStyle::Normal;
     231             :                 } else {
     232          50 :                         if (italic.min > 0) {
     233          50 :                                 ret.fontStyle = FontStyle::Italic;
     234             :                         } else {
     235           0 :                                 ret.fontStyle = slant.clamp(FontStyle::Normal);
     236             :                         }
     237             :                 }
     238        2628 :                 break;
     239           0 :         case FontStyle::Italic.get():
     240             :                 // try true italic or slant emulation
     241           0 :                 if (italic.min > 0) {
     242           0 :                         ret.fontStyle = FontStyle::Italic;
     243             :                 } else {
     244           0 :                         ret.fontStyle = slant.clamp(FontStyle::Oblique);
     245             :                 }
     246           0 :                 break;
     247        3096 :         default:
     248        3096 :                 if ((axisMask & FontVariableAxis::Slant) != FontVariableAxis::None) {
     249        1548 :                         ret.fontStyle = slant.clamp(vec.fontStyle);
     250        1548 :                 } else if ((axisMask & FontVariableAxis::Italic) != FontVariableAxis::None && italic.min != italic.max) {
     251           0 :                         ret.fontStyle = FontStyle::Italic;
     252             :                 } else {
     253        1548 :                         if (italic.min == 1) {
     254           0 :                                 ret.fontStyle = FontStyle::Italic;
     255             :                         } else {
     256        1548 :                                 ret.fontStyle = slant.min;
     257             :                         }
     258             :                 }
     259        3096 :                 break;
     260             :         }
     261             : 
     262        5724 :         return ret;
     263             : }
     264             : 
     265             : }