vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 1 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 2 | * Copyright 2011 Google Inc. |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 3 | * |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | #ifndef SkAdvancedTypefaceMetrics_DEFINED |
| 9 | #define SkAdvancedTypefaceMetrics_DEFINED |
| 10 | |
halcanary | 3287588 | 2016-08-16 09:36:23 -0700 | [diff] [blame] | 11 | #include "SkBitmaskEnum.h" |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 12 | #include "SkRect.h" |
| 13 | #include "SkRefCnt.h" |
| 14 | #include "SkString.h" |
| 15 | #include "SkTDArray.h" |
mtklein | 5f939ab | 2016-03-16 10:28:35 -0700 | [diff] [blame] | 16 | |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 17 | /** \class SkAdvancedTypefaceMetrics |
| 18 | |
| 19 | The SkAdvancedTypefaceMetrics class is used by the PDF backend to correctly |
bungeman | 7be2eb8 | 2015-02-23 08:25:00 -0800 | [diff] [blame] | 20 | embed typefaces. This class is created and filled in with information by |
Hal Canary | 209e4b1 | 2017-05-04 14:23:55 -0400 | [diff] [blame] | 21 | SkTypeface::getAdvancedMetrics. |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 22 | */ |
Hal Canary | 209e4b1 | 2017-05-04 14:23:55 -0400 | [diff] [blame] | 23 | struct SkAdvancedTypefaceMetrics { |
| 24 | SkAdvancedTypefaceMetrics() {} |
| 25 | SkAdvancedTypefaceMetrics(const SkAdvancedTypefaceMetrics&) = delete; |
| 26 | SkAdvancedTypefaceMetrics& operator=(const SkAdvancedTypefaceMetrics&) = delete; |
halcanary | 8b1d32c | 2016-08-08 09:09:59 -0700 | [diff] [blame] | 27 | ~SkAdvancedTypefaceMetrics() {} |
halcanary | e20a875 | 2016-05-08 18:47:16 -0700 | [diff] [blame] | 28 | |
Hal Canary | e1fec19 | 2018-03-29 10:59:02 -0700 | [diff] [blame^] | 29 | // The PostScript name of the font. See `FontName` and `BaseFont` in PDF standard. |
| 30 | SkString fPostScriptName; |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 31 | SkString fFontName; |
| 32 | |
Hal Canary | 9e14696 | 2017-05-08 14:16:06 -0400 | [diff] [blame] | 33 | // These enum values match the values used in the PDF file format. |
| 34 | enum StyleFlags : uint32_t { |
| 35 | kFixedPitch_Style = 0x00000001, |
| 36 | kSerif_Style = 0x00000002, |
| 37 | kScript_Style = 0x00000008, |
| 38 | kItalic_Style = 0x00000040, |
| 39 | kAllCaps_Style = 0x00010000, |
| 40 | kSmallCaps_Style = 0x00020000, |
| 41 | kForceBold_Style = 0x00040000 |
| 42 | }; |
| 43 | StyleFlags fStyle = (StyleFlags)0; // Font style characteristics. |
| 44 | |
halcanary | 3287588 | 2016-08-16 09:36:23 -0700 | [diff] [blame] | 45 | enum FontType : uint8_t { |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 46 | kType1_Font, |
| 47 | kType1CID_Font, |
| 48 | kCFF_Font, |
| 49 | kTrueType_Font, |
| 50 | kOther_Font, |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 51 | }; |
| 52 | // The type of the underlying font program. This field determines which |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 53 | // of the following fields are valid. If it is kOther_Font the per glyph |
| 54 | // information will never be populated. |
Hal Canary | 209e4b1 | 2017-05-04 14:23:55 -0400 | [diff] [blame] | 55 | FontType fType = kOther_Font; |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 56 | |
halcanary | 3287588 | 2016-08-16 09:36:23 -0700 | [diff] [blame] | 57 | enum FontFlags : uint8_t { |
| 58 | kMultiMaster_FontFlag = 0x01, //!<May be true for Type1, CFF, or TrueType fonts. |
| 59 | kNotEmbeddable_FontFlag = 0x02, //!<May not be embedded. |
| 60 | kNotSubsettable_FontFlag = 0x04, //!<May not be subset. |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 61 | }; |
Hal Canary | 209e4b1 | 2017-05-04 14:23:55 -0400 | [diff] [blame] | 62 | FontFlags fFlags = (FontFlags)0; // Global font flags. |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 63 | |
Hal Canary | 209e4b1 | 2017-05-04 14:23:55 -0400 | [diff] [blame] | 64 | int16_t fItalicAngle = 0; // Counterclockwise degrees from vertical of the |
| 65 | // dominant vertical stroke for an Italic face. |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 66 | // The following fields are all in font units. |
Hal Canary | 209e4b1 | 2017-05-04 14:23:55 -0400 | [diff] [blame] | 67 | int16_t fAscent = 0; // Max height above baseline, not including accents. |
| 68 | int16_t fDescent = 0; // Max depth below baseline (negative). |
| 69 | int16_t fStemV = 0; // Thickness of dominant vertical stem. |
| 70 | int16_t fCapHeight = 0; // Height (from baseline) of top of flat capitals. |
Hal Canary | 9c6f6a5 | 2018-03-29 10:15:16 -0700 | [diff] [blame] | 71 | int16_t fXHeight = 0; // Height (from baseline) of the top of lowercase letter x. |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 72 | |
Hal Canary | 209e4b1 | 2017-05-04 14:23:55 -0400 | [diff] [blame] | 73 | SkIRect fBBox = {0, 0, 0, 0}; // The bounding box of all glyphs (in font units). |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 74 | |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 75 | // The names of each glyph, only populated for postscript fonts. |
halcanary | 8b1d32c | 2016-08-08 09:09:59 -0700 | [diff] [blame] | 76 | SkTArray<SkString> fGlyphNames; |
vandebo@chromium.org | 6744d49 | 2011-05-09 18:13:47 +0000 | [diff] [blame] | 77 | |
Hal Canary | 209e4b1 | 2017-05-04 14:23:55 -0400 | [diff] [blame] | 78 | // The mapping from glyph to Unicode; array indices are glyph ids. |
vandebo@chromium.org | 6744d49 | 2011-05-09 18:13:47 +0000 | [diff] [blame] | 79 | SkTDArray<SkUnichar> fGlyphToUnicode; |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 80 | }; |
| 81 | |
halcanary | 3287588 | 2016-08-16 09:36:23 -0700 | [diff] [blame] | 82 | namespace skstd { |
| 83 | template <> struct is_bitmask_enum<SkAdvancedTypefaceMetrics::FontFlags> : std::true_type {}; |
| 84 | template <> struct is_bitmask_enum<SkAdvancedTypefaceMetrics::StyleFlags> : std::true_type {}; |
| 85 | } |
vandebo@chromium.org | 6f72d1e | 2011-02-14 23:19:59 +0000 | [diff] [blame] | 86 | |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 87 | #endif |