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0.1.3: proportional kana in UI variant
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| def AddRef(n, font, ref): | ||
| if n in ref: | ||
| return | ||
| glyph = font['glyf'][n] | ||
| if 'references' in glyph: | ||
| for r in glyph['references']: | ||
| ref.append(r['glyph']) | ||
| AddRef(r['glyph'], font, ref) | ||
|
|
||
| def TrimGlyph(font): | ||
| needed = [] | ||
| for (_, n) in font['cmap'].items(): | ||
| needed.append(n) | ||
| ref = [] | ||
| for n in needed: | ||
| AddRef(n, font, ref) | ||
|
|
||
| unneeded = [] | ||
| for n in font['glyf']: | ||
| if not (n in needed or n in ref): | ||
| unneeded.append(n) | ||
| for n in unneeded: | ||
| del font['glyf'][n] | ||
|
|
||
| def CopyRef(glyph, a, b): | ||
| if 'references' in glyph: | ||
| for r in glyph['references']: | ||
| if r['glyph'] not in a['glyf']: | ||
| a['glyf'][r['glyph']] = b['glyf'][r['glyph']] | ||
| CopyRef(a['glyf'][r['glyph']], a, b) | ||
|
|
||
| def MergeBelow(base, ext): | ||
| for (u, n) in ext['cmap'].items(): | ||
| if u not in base['cmap'].keys(): | ||
| base['cmap'][u] = n | ||
| if n not in base['glyf'].keys(): | ||
| glyph = ext['glyf'][n] | ||
| base['glyf'][n] = glyph | ||
| CopyRef(glyph, base, ext) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| import re | ||
| from fontlib.unicode import IsKana | ||
| from fontlib.transform import Transform, ChangeAdvanceWidth | ||
|
|
||
| def GetLookupPalt(font): | ||
| palt = [] | ||
| if 'GPOS' not in font: | ||
| return palt | ||
| gpos = font['GPOS'] | ||
| lookups = gpos['lookups'] | ||
| for l in lookups: | ||
| if 'palt' in l: | ||
| palt.append(lookups[l]) | ||
| return palt | ||
|
|
||
| def ProportionalizeKana(font): | ||
| for palt in GetLookupPalt(font): | ||
| for sub in palt['subtables']: | ||
| for (n, d) in sub.items(): | ||
| if re.match('^uni[0-9A-F]{4,5}$', n) and IsKana(int(n[3:], 16)): | ||
| glyph = font['glyf'][n] | ||
| if 'dx' in d: | ||
| Transform(glyph, 1, 0, 0, 1, d['dx'], 0) | ||
| if 'dWidth' in d: | ||
| ChangeAdvanceWidth(glyph, d['dWidth']) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| # x' = a x + b y + dx | ||
| # y' = c x + d y + dy | ||
| def Transform(glyph, a, b, c, d, dx, dy): | ||
| glyph['advanceWidth'] *= a | ||
| if 'contours' in glyph: | ||
| for contour in glyph['contours']: | ||
| for point in contour: | ||
| point['x'] = a * point['x'] + b * point['y'] + dx | ||
| point['y'] = c * point['x'] + d * point['y'] + dy | ||
| if 'references' in glyph: | ||
| for reference in glyph['references']: | ||
| reference['x'] = a * reference['x'] + b * reference['y'] + dx | ||
| reference['y'] = c * reference['x'] + d * reference['y'] + dy | ||
|
|
||
| def ChangeAdvanceWidth(glyph, adv): | ||
| glyph['advanceWidth'] += adv |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| class UnicodeRange: | ||
| Hiragana = [ (0x3040, 0x309F) ] | ||
| Katakana = [ (0x30A0, 0x30FF), (0x31F0, 0x31FF) ] | ||
|
|
||
| def IsHiragana(ch): | ||
| if ch is str: | ||
| ch = ord(ch) | ||
| return any([b <= ch <= e for (b, e) in UnicodeRange.Hiragana ]) | ||
|
|
||
| def IsKatakana(ch): | ||
| if ch is str: | ||
| ch = ord(ch) | ||
| return any([b <= ch <= e for (b, e) in UnicodeRange.Katakana ]) | ||
|
|
||
| def IsKana(ch): | ||
| return IsHiragana(ch) or IsKatakana(ch) |
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