SwiftとCoreTextと文字組み

Transcript

1. !.FMPOTXJGU ழࣂ
   େࢤ
   ೔ຊܦࡁ৽ฉࣾ 4XJGUͱ$PSF5FYUͱจࣈ૊Έ
2. 2 ழࣂ
   େࢤʢ*LBJ
   5BJTIJʣ
   ೔ຊܦࡁ৽ฉࣾͷΤϯδχΞ
   ࢴ໘ϏϡʔΞʔΞϓϦͷ։ൃ
   4XJGU
   
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   1ZUIPO
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3. จࣈ૊Έ͍ͯ͠·͔͢ʁ 3
4. 4 ग़య
   IUUQPFDOFUTZPLV[BJNFMPO ΞʔϧεɾϑΣϘϦοτ
   ʢผ໊ʣϚεΫϝϩϯ
   ໢ϝϩϯͷ୅ද඼छͰ͢ɻՌൽ͸྘৭Ͱશ໘ ʹඒ͍͠໢໨໛༷͕Ͱ͍ͯ·͢ɻ
5. 5 ग़య
   IUUQPFDOFUTZPLV[BJNFMPO ΞʔϧεɾϑΣϘϦοτ
   ʢผ໊ʣϚεΫϝϩϯ
   ໢ϝϩϯͷ୅ද඼छͰ͢ɻՌൽ͸྘৭Ͱશ໘ ʹඒ͍͠໢໨໛༷͕Ͱ͍ͯ·͢ɻ
6. 6 ग़య
   IUUQPFDOFUTZPLV[BJNFMPO ΞʔϧεɾϑΣϘϦοτ
   ʢผ໊ʣϚεΫϝϩϯ
   ໢ϝϩϯͷ୅ද඼छͰ͢ɻՌൽ͸྘৭Ͱશ໘ ʹඒ͍͠໢໨໛༷͕Ͱ͍ͯ·͢ɻ
7. 7 ग़య
   IUUQPFDOFUTZPLV[BJNFMPO ΞʔϧεɾϑΣϘϦοτ
   ʢผ໊ʣϚεΫϝϩϯ
   ໢ϝϩϯͷ୅ද඼छͰ͢ɻՌൽ͸྘৭Ͱશ໘ ʹඒ͍͠໢໨໛༷͕Ͱ͍ͯ·͢ɻ ʢผ໊ʣ
8. ΞʔϧεɾϑΣϘϦοτ
   ໢ϝϩϯͷ୅ද඼छͰ͢ɻՌൽ͸྘৭Ͱશ໘ ʹඒ͍͠໢໨໛༷͕Ͱ͍ͯ·͢ɻ ʢผ໊ʣϚεΫϝϩϯ 8 ग़య
   IUUQPFDOFUTZPLV[BJNFMPO ʢผ໊ʣ ʢผ໊ʣ
9. 9 ग़య
   IUUQPFDOFUTZPLV[BJNFMPO ΞʔϧεɾϑΣϘϦοτ
   ໢ϝϩϯͷ୅ද඼छͰ͢ɻՌൽ͸྘৭Ͱશ໘ ʹඒ͍͠໢໨໛༷͕Ͱ͍ͯ·͢ɻ ʢผ໊ʣϚεΫϝϩϯ
11. ߦ಄ͷׅހΛͭΊΔฤ $PSF5FYU
    Λ࢖ͬͨඳը 11
12. 12  /4"UUSJCVUFE4USJOH
    ͔Β
    $55ZQFTFUUFS
    Λੜ੒
 
  Ұߦͷ௕͞
    %PVCMF
    Λ͋ͨ͑ͯɺվߦ͢Δ·Ͱͷจࣈ਺ ΛಘΔ var typesetter = CTTypesetterCreateWithAttributedString(
 attributedText) let count = CTTypesetterSuggestLineBreak(
 typesetter, 0, Double(lineWidth)) $PSF5FYU
    Λ࢖ͬͨඳը
    ʕ
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 ʹ 20 21 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
13. 13  $55ZQFTFUUFS
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    Λੜ੒
 
  ߦ಄͕࢝ΊׅހͳΒɺӈʹدͤΔ෼ͷ௕͞ΛಘΔ let ctline = CTTypesetterCreateLine(
 typesetter, CFRangeMake(0, count)) let offsetX = fontSize / 2 // ͱΓ͋͑ͣϑΥϯταΠζͷ൒෼ʹ $PSF5FYU
    Λ࢖ͬͨඳը
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    ߦ಄ͷׅހΛͭΊΔฤ ʢ
14. 14  ӈʹدͤΔ෼Λઃఆͯ͠ɺ$5-JOF
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  ߦ਺෼͘Γ͔͑͢ CGContextSetTextPosition(context, offsetX, offsetY)
 CTLineDraw(ctline, context) $PSF5FYU
    Λ࢖ͬͨඳը
    ʕ
    ߦ಄ͷׅހΛͭΊΔฤ ʢผ໊ʣϚεΫϝϩϯ ʢผ໊ʣϚεΫϝϩϯ
15. 15 /4"UUSJCVUFE4USJOH
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16. HJUIVCDPNJLBJU,FSO-BCFM 16 ߦ಄Ґஔௐ੔ɺࠨɾதԝɾӈɾۉ౳ἧ͑ɺ
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17. $PSF5FYU
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    ͰͲ͏มԽ 17 ͓·͚
18. 18 4XJGU
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19. 19 4XJGU
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20. 20 $PSF
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