core

package
v0.5.0 Latest Latest
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 Go to latest Published: Aug 20, 2024 License: Apache-2.0 Imports: 12 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

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var ERROR_INCORRECT_MAGIC_NUMBER = errors.New("Incorrect magic number")
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var ERROR_NO_GET_WRONG_TYPE = errors.New("get wrong type")
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var ERROR_NO_KEY_FOUND = errors.New("no key found")
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var ERROR_NO_UNICODE_ENCODING_FOUND = errors.New("No Unicode encoding found")
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var ERROR_POSTSCRIPT_NAME_NOT_FOUND = errors.New("PostScript name not found")
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var ERROR_UNEXPECTED_SUBTABLE_FORMAT = errors.New("Unexpected subtable format")
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var ErrFontLicenseDoesNotAllowEmbedding = errors.New("Font license does not allow embedding")

ErrFontLicenseDoesNotAllowEmbedding Font license does not allow embedding

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var ErrTableNotFound = errors.New("table not found")

ErrTableNotFound error table not found

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var Nonsymbolic = (1 << 5)
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var Symbolic = 1 << 2

Functions

func Round 

func Round(value float64) int

Types

type CmapFormat12GroupingTable 

type CmapFormat12GroupingTable struct {
	StartCharCode, EndCharCode, GlyphID uint
}

type FontMaker 

type FontMaker struct {
	// contains filtered or unexported fields
}

FontMaker font maker

func NewFontMaker 

func NewFontMaker() *FontMaker

NewFontMaker new FontMaker

func (*FontMaker) FileSize 

func (f *FontMaker) FileSize(path string) (int64, error)

func (*FontMaker) GetInfoFromTrueType 

func (f *FontMaker) GetInfoFromTrueType(fontpath string, fontmaps []FontMap) (TtfInfo, error)

func (*FontMaker) GetResults 

func (f *FontMaker) GetResults() []string

GetResults get result

func (*FontMaker) GoStructName 

func (f *FontMaker) GoStructName(name string) string

func (*FontMaker) LoadMap 

func (f *FontMaker) LoadMap(encodingpath string) ([]FontMap, error)

func (*FontMaker) MakeDefinitionFile 

func (f *FontMaker) MakeDefinitionFile(gofontname string, mappath string, exportfile string, encode string, fontmaps []FontMap, info TtfInfo) (string, error)

func (*FontMaker) MakeFont 

func (f *FontMaker) MakeFont(fontpath string, mappath string, encode string, outfolderpath string) error

func (*FontMaker) MakeFontDescriptor 

func (f *FontMaker) MakeFontDescriptor(info TtfInfo) (string, error)

func (*FontMaker) MakeFontEncoding 

func (f *FontMaker) MakeFontEncoding(mappath string, fontmaps []FontMap) (string, error)

func (*FontMaker) MakeWidthArray 

func (f *FontMaker) MakeWidthArray(widths map[int]int) (string, error)

func (*FontMaker) MultiplyAndRound 

func (f *FontMaker) MultiplyAndRound(k float64, v int) int

func (*FontMaker) MultiplyAndRoundWithUInt64 

func (f *FontMaker) MultiplyAndRoundWithUInt64(k float64, v uint) int

func (*FontMaker) Round 

func (f *FontMaker) Round(value float64) int

type FontMap 

type FontMap struct {
	Uv   int
	Name string
}

type KernMap 

type KernMap map[uint]KernValue

KernMap kerning map map[left]KernValue

type KernTable 

type KernTable struct {
	Version uint //for debug
	NTables uint //for debug
	Kerning KernMap
}

KernTable https://www.microsoft.com/typography/otspec/kern.htm

type KernValue 

type KernValue map[uint]int16

KernValue kerning values map[right]value

func (KernValue) ValueByRight 

func (k KernValue) ValueByRight(right uint) (bool, int16)

ValueByRight get value by right

type TTFParser 

type TTFParser struct {
	Embeddable bool
	Bold       bool

	//cmap
	IsShortIndex  bool
	LocaTable     []uint
	SegCount      uint
	StartCount    []uint
	EndCount      []uint
	IdRangeOffset []uint
	IdDelta       []uint
	GlyphIdArray  []uint
	// contains filtered or unexported fields
}

TTFParser true type font parser

func (*TTFParser) ArrayPadUint 

func (t *TTFParser) ArrayPadUint(arr []uint, size uint, val uint) ([]uint, error)

func (*TTFParser) Ascender 

func (t *TTFParser) Ascender() int

func (*TTFParser) BytesToString 

func (t *TTFParser) BytesToString(b []byte) string

BytesToString convert bytes to string

func (*TTFParser) CapHeight 

func (t *TTFParser) CapHeight() int

CapHeight https://en.wikipedia.org/wiki/Cap_height

func (*TTFParser) Chars 

func (t *TTFParser) Chars() map[int]uint

func (*TTFParser) Descender 

func (t *TTFParser) Descender() int

func (*TTFParser) FTell 

func (t *TTFParser) FTell(fd *bytes.Reader) (uint, error)

func (*TTFParser) Flag 

func (t *TTFParser) Flag() int

func (*TTFParser) FontData 

func (t *TTFParser) FontData() []byte

func (*TTFParser) GetTables 

func (t *TTFParser) GetTables() map[string]TableDirectoryEntry

func (*TTFParser) GroupingTables 

func (t *TTFParser) GroupingTables() []CmapFormat12GroupingTable

GroupingTables get cmap format12 grouping table

func (*TTFParser) ItalicAngle 

func (t *TTFParser) ItalicAngle() int

func (*TTFParser) Kern 

func (t *TTFParser) Kern() *KernTable

Kern get KernTable

func (*TTFParser) NumGlyphs 

func (t *TTFParser) NumGlyphs() uint

NumGlyphs number of glyph

func (*TTFParser) NumberOfHMetrics 

func (t *TTFParser) NumberOfHMetrics() uint

func (*TTFParser) Parse 

func (t *TTFParser) Parse(filepath string) error

Parse parse

func (*TTFParser) ParseByReader 

func (t *TTFParser) ParseByReader(rd io.Reader) error

ParseByReader parse by io.reader

func (*TTFParser) ParseCmap 

func (t *TTFParser) ParseCmap(fd *bytes.Reader) error

ParseCmap parse cmap table format 4 https://www.microsoft.com/typography/otspec/cmap.htm

func (*TTFParser) ParseCmapFormat12 

func (t *TTFParser) ParseCmapFormat12(fd *bytes.Reader) (bool, error)

ParseCmapFormat12 parse cmap table format 12 https://www.microsoft.com/typography/otspec/cmap.htm

func (*TTFParser) ParseFontData 

func (t *TTFParser) ParseFontData(fontData []byte) error

ParseFontData parses font data.

func (*TTFParser) ParseHead 

func (t *TTFParser) ParseHead(fd *bytes.Reader) error

ParseHead parse head table https://www.microsoft.com/typography/otspec/Head.htm

func (*TTFParser) ParseHhea 

func (t *TTFParser) ParseHhea(fd *bytes.Reader) error

ParseHhea parse hhea table https://www.microsoft.com/typography/otspec/hhea.htm

func (*TTFParser) ParseHmtx 

func (t *TTFParser) ParseHmtx(fd *bytes.Reader) error

ParseHmtx parse hmtx table https://www.microsoft.com/typography/otspec/hmtx.htm

func (*TTFParser) ParseLoca 

func (t *TTFParser) ParseLoca(fd *bytes.Reader) error

ParseLoca parse loca table https://www.microsoft.com/typography/otspec/loca.htm

func (*TTFParser) ParseMaxp 

func (t *TTFParser) ParseMaxp(fd *bytes.Reader) error

ParseMaxp parse maxp table https://www.microsoft.com/typography/otspec/Maxp.htm

func (*TTFParser) ParseName 

func (t *TTFParser) ParseName(fd *bytes.Reader) error

ParseName parse name table https://www.microsoft.com/typography/otspec/name.htm

func (*TTFParser) ParseOS2 

func (t *TTFParser) ParseOS2(fd *bytes.Reader) error

ParseOS2 parse OS2 table https://www.microsoft.com/typography/otspec/OS2.htm

func (*TTFParser) ParsePost 

func (t *TTFParser) ParsePost(fd *bytes.Reader) error

ParsePost parse post table https://www.microsoft.com/typography/otspec/post.htm

func (*TTFParser) Parsekern 

func (t *TTFParser) Parsekern(fd *bytes.Reader) error

Parsekern parse kerning table https://www.microsoft.com/typography/otspec/kern.htm

func (*TTFParser) PregReplace 

func (t *TTFParser) PregReplace(pattern string, replacement string, subject string) (string, error)

func (*TTFParser) Read 

func (t *TTFParser) Read(fd *bytes.Reader, length int) ([]byte, error)

Read read

func (*TTFParser) ReadShort 

func (t *TTFParser) ReadShort(fd *bytes.Reader) (int, error)

ReadShort read short

func (*TTFParser) ReadShortInt16 

func (t *TTFParser) ReadShortInt16(fd *bytes.Reader) (int16, error)

ReadShortInt16 read short return int16

func (*TTFParser) ReadULong 

func (t *TTFParser) ReadULong(fd *bytes.Reader) (uint, error)

ReadULong read ulong

func (*TTFParser) ReadUShort 

func (t *TTFParser) ReadUShort(fd *bytes.Reader) (uint, error)

ReadUShort read ushort

func (*TTFParser) Seek 

func (t *TTFParser) Seek(fd *bytes.Reader, tag string) error

Seek seek by tag

func (*TTFParser) SetUseKerning 

func (t *TTFParser) SetUseKerning(use bool)

SetUseKerning set useKerning must set before Parse

func (*TTFParser) Skip 

func (t *TTFParser) Skip(fd *bytes.Reader, length int) error

Skip skip

func (*TTFParser) TypoAscender 

func (t *TTFParser) TypoAscender() int

func (*TTFParser) TypoDescender 

func (t *TTFParser) TypoDescender() int

func (*TTFParser) UnderlinePosition 

func (t *TTFParser) UnderlinePosition() int

UnderlinePosition position of underline

func (*TTFParser) UnderlineThickness 

func (t *TTFParser) UnderlineThickness() int

UnderlineThickness thickness of underline

func (*TTFParser) UnitsPerEm 

func (t *TTFParser) UnitsPerEm() uint

func (*TTFParser) Widths 

func (t *TTFParser) Widths() []uint

func (*TTFParser) XHeight 

func (t *TTFParser) XHeight() int

func (*TTFParser) XMax 

func (t *TTFParser) XMax() int

func (*TTFParser) XMin 

func (t *TTFParser) XMin() int

func (*TTFParser) YMax 

func (t *TTFParser) YMax() int

func (*TTFParser) YMin 

func (t *TTFParser) YMin() int

type TableDirectoryEntry 

type TableDirectoryEntry struct {
	CheckSum uint
	Offset   uint
	Length   uint
}

func (TableDirectoryEntry) PaddedLength 

func (t TableDirectoryEntry) PaddedLength() int

type TtfInfo 

type TtfInfo map[string]interface{}

func NewTtfInfo 

func NewTtfInfo() TtfInfo

func (TtfInfo) GetBool 

func (t TtfInfo) GetBool(key string) (bool, error)

func (TtfInfo) GetInt64 

func (t TtfInfo) GetInt64(key string) (int, error)

func (TtfInfo) GetInt64s 

func (t TtfInfo) GetInt64s(key string) ([]int, error)

func (TtfInfo) GetMapIntInt64 

func (t TtfInfo) GetMapIntInt64(key string) (map[int]int, error)

func (TtfInfo) GetString 

func (t TtfInfo) GetString(key string) (string, error)

func (TtfInfo) PushBool 

func (t TtfInfo) PushBool(key string, val bool)

func (TtfInfo) PushBytes 

func (t TtfInfo) PushBytes(key string, val []byte)

func (TtfInfo) PushInt 

func (t TtfInfo) PushInt(key string, val int)

func (TtfInfo) PushInt64 

func (t TtfInfo) PushInt64(key string, val int64)

func (TtfInfo) PushInt64s 

func (t TtfInfo) PushInt64s(key string, val []int)

func (TtfInfo) PushMapIntInt64 

func (t TtfInfo) PushMapIntInt64(key string, val map[int]int)

func (TtfInfo) PushString 

func (t TtfInfo) PushString(key string, val string)

func (TtfInfo) PushUInt64 

func (t TtfInfo) PushUInt64(key string, val uint)

Source Files

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